AquaTech
News 2003
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Dear Reader,
here are the actual AquaTech NEWS and this time no new offer of the month (December
2003), but a small present to download for free:
CITES IDENTIFICATION GUIDE -
Sturgeons and Paddlefish
By Paul Vecsei, Richard Charette, Martin Hochleithner, Ilya Trukshin, Tamara Maliepaard
and Yvan Lafleur. Environment Canada.
Guide to the Identification of Sturgeon and Paddlefish Species Controlled under the
Convention on International Trade in Endangered Species of Wild Fauna and Flora.
Text in English, French, and Spanish. 180 pages as PDF-file (10.7 MB).
Survey:
In order to improve our
newsletter, we would be pleased if you could find the time to fill out the form below and
submitt it:
Thanks for your opinion and participation,
nice seasons greetings
Martin Hochleithner
Dear Reader,
here are the actual AquaTech NEWS and our new offer of the month (November 2003):
Now available ... new flat universal scales with
corrosion free platform:
| Model |
BL-60 |
BL-150 |
BL-300 |
VS-200 |
| Range to |
60 kg |
150 kg |
300 kg |
250 kg |
| Division |
20 g |
50 g |
200 g |
100 g |
| Dimensions |
550 x 550 x 55
mm |
900 x 550 x 55 mm |
| Price/unit |
EUR
490,- |
EUR 590,- |
This new
flat scales with stable base, 4-cell measurement technique and corrosion free platform
made from stainless steel (only 55 mm high) are universally to use. The removable display
with spiral cable, 25 mm LCD digits and 100 % tara function can also be mounted on a wall.
It is possible to select continous display or automatic switch off. The energy supply over
an rechargable accumulator with charger allows a mobile use.
The model VS is abailable for use with accumulator or net connection and has additionally
two inserted transport wheels on the side and on the opposide side a handle.
We deliver also: Precision-, Analyse-, Table-, Floor-,
Crane- and Pocket-Scales, for ranges up to 5 t and a division from 0,0001 g on!
All prices in Euro ex works, VAT
excl.
Just let me know if there is any special question,
with best regards
Martin Hochleithner
Hello,
here are the actual AquaTech NEWS and our new offer of the month (October 2003):
Use a vacuum packing machine to extend the self live
of your seafood or fish products -
| Typ |
Chamber dimensions BxLxH mm |
Total dimensions
BxLxH mm |
Sealing bar mm |
Pump m3/h |
Power kw |
Price EUR |
| Mini |
280x310x80 |
317x438x293 |
280 |
4 |
0,6 |
1.490,- |
| Plus |
280x310x120 |
317x438x293 |
280 |
8 |
0,8 |
1.990,- |
| Super |
350x370x135 |
450x510x420 |
350 |
16 |
1,1 |
2.490,- |
| Jumbo |
420x370x135 |
480x515x440 |
350 |
16 |
1,1 |
2.990,- |
| H-100 |
320x370x135 |
380x515x425 |
350 |
21 |
1,6 |
2.990,- |
| H-150 |
350x370x135 |
450x515x425 |
350 |
16 |
1,1 |
2.990,- |
| H-200 |
420x370x170 |
480x515x440 |
420 |
21 |
1,6 |
3.490,- |
| H-220 |
420x460x170 |
480x610x440 |
420 |
21 |
1,6 |
3.990,- |
At this
table models the vacuum chamber and housing is made from stainless steel and the high
transparent lid of acryl glas. An easy and automatic working process is possible through
the analog process time control pane (and from typ "100" on also through the
digital sensor control with 10 programs). The machines have a single sealing bar
configuration (single time sealing-cutting system on request) and are also available with
a double sealing bar configuration from typ "200" onward. A gas injection system
and soft-air ventilation is also possible from typ "200" onward. The
professional vacuum pump 230 V/50 Hz (vacuum time 10-60 seconds) and back ventilation
guarantee a service friendly construction. A liquid insert-plate is available as
accessoire.
Options and Accessoire:
Liquid insert-plate, EUR 90,-
Sealing-cutting system (from Typ Plus on), EUR 190,-
Digital Sensor-control (from Typ 100 on), EUR 190,-
Gas Injection-system (from Typ 200 on), EUR 190,-
Second Sealing-bar (from Typ 200 on), EUR 290,-
Adaption as movable stand-unit (only Typ 200), EUR 490,-
Larger moveable floor models or doubble chamber systems on
request.
All Prices in Euro ex works, VAT excl.
Just let me know if there is any special question,
with best regards
Martin Hochleithner
Dear Reader,
here are the actual AquaTech NEWS and our new offer of the month (September 2003):
For the production of flake ice, which keeps fish and seafood longer
fresh, we can recommend as follow:
Flake-Ice machine 70 kg/day* (consumption 0,42
kw), EUR 4.990,-
Flake-Ice machine 120 kg/day* (consumption 0,62 kw), EUR 5.990,-
All Prices in Euro ex works, VAT
excl.
Offer each in 230 V/50 Hz, with integrated storage
container (40 mm isolated) for 70 kg ice.
As option (for + EUR 300,-) a shift key for eligible ice
temperature is available which allows to produce ice with a temperature of eighter -8 °C
or only -2 °C (idealy for fresh fish and seafood).
This scale ice makers are made of high quality stainless
steel and plastics, have compact and small dimensions and a high production capacity. They
are easy to use and highly economic, the innovative technique guarantees a stable quality
of the flake ice. All machines are FCKW-free (R 404 a), have adjustable feets and an
automatic water remover. Other voltages, larger machines (also without refrigeration unit)
or water cooled units on request.
* Capacity in 24 h at a temperature
of +18 °C ambient-air and +12 °C water-supply as well as -8
°C flake-ice.
Book-Tips:
Fish
Processing Technology
By G. M. Hall (Editor), Hardcover, 292 pages (1996).
Written as an overview of the field for industrialists
wishing to improve and diversify their operation, provides coverage of modern aspects of
traditional fish processing technologies, and practical descriptions of important new
areas. The first five chapters cover fish biochemistry affecting processing, curing,
surimi and fish mince, chilling, freezing, and canning. The final four chapters focus on
the increasing globalization of the fish processing industry and the demands, from
legislation and the consumer, for better quality and safer products.
Seafood
Safety, Processing, and Biotechnology
By Fereidoon Shahidi, Yvonne Jones and David D. Kitts (Editors), Paperback,
266 pages (1997).
Research and development of seafood continues to be
productive in terms of new and improved products for both food and non-food purposes. The
use of biotechnology, microbiology, computer modeling and advanced analytical techniques
has led to improvements in processing and product safety. This recent book provides
extensive new information on these developments. The 25 reports were prepared by food
scientists specializing in seafood. The reports are well illustrated with numerous
schematics and some micrographs. Extensive reference data is provided in tables and
graphs.
Safety
and Quality Issues in Fish Processing
By H. Allan Bremmer (Editor), Hardcover, 507 pages (2002).
Summarizes important new research on improving quality in
fish processing. Covers key processing and preservation technologies ranging from
traditional fish drying to high pressure processing. Useful for industry technologists,
consultants, researchers, and graduate students, this work surveys issues and solutions in
safety and quality in the fish processing industry, with sections on ways of ensuring safe
products, aspects of fish quality, and improving quality throughout the supply chain.
HACCP systems are covered in depth, and there is material on identifying and controlling
hazards from pathogens, toxins, parasites, and heavy metals. Methods for modeling and
predicting shelf life are examined, and processing and preservation technologies are
covered.
Seafood
Enzymes: Utilization and Influence on Postharvest Seafood Quality
By Norman F. Haard and Benjamin K. Simpson (Editors), Hardcover, 681 pages (2000).
There are two main reasons to study enzymes from aquatic
animals. First is that, though many of the enzymes are also found in terrestrial life
forms, they may exhibit vastly different properties with respect to stability, temperature
optimum, secondary substrate, and other features because of adaptation to organisms living
in various habitat conditions. The other reason is that seafood spoils as quickly when it
is microbially sterile as when not, indicating that the spoilage is due to action of
native enzymes rather than outside pathogens, and food scientists need to take that into
account when attempting to protect seafood quality. Contributors from many of the
seafaring nations discuss the different between seafood enzymes and others, a number of
specific enzymes, their role in food quality, controlling enzyme activity in seafoods, and
industrial applications of the enzymes.
Please let me know if there is any special question,
with best regards
Martin Hochleithner
Dear Reader,
here are the actual AquaTech NEWS and our new offer of the month (July 2003):
Now a new aerator with biofilter for your ornamental
fish or garden pond is available:
Quirl Propeller-Screw Aerator (3-18 V DC) 3.6 m3/h EUR 390,-
Solarpanel (solar powered), EUR 90,-
Transformer (net powered), EUR 50,-
All Prices in Euro ex works, VAT
excl.
Book-Tips:
The
Ponder's Bible
By Gosta H. Lovgren and Gösta H. Lovgren, Paperback, 178 pages (2000).
The Pond
Owner's Problem Solver: Practical and Expert Advice on Designing, Stocking and Managing
Ponds
By John Dawes, Hardcover, 208 pages (1999).
Earth
Ponds A to Z: An Illustrated Encyclopedia
By Tim Matson and Frank Fretz (Illustrator), Hardcover, 160 pages (2003).
Earth Ponds
Sourcebook: The Pond Owner's Manual and Resource Guide
By Tim Matson, Paperback, 176 pages (2003).
How to
Build Ponds and Waterfalls: The Complete Guide
By Jeffrey Reid, Paperback, 80 pages (1998).
In August we will have closed for vacation,
therefore the next news and offers will follow in September.
You can reach me directly at mobile phone: +43/664/1048297
Nice holidays,
yours
Martin Hochleithner
Hello,
here are the actual AquaTech NEWS and our new offer of the month (June 2003):
Use an advanced and undependent solar powered feeding
system for the optimal and controlled feeding of your fish or prawn:
Solaris Feeder "Intervall" (without
hopper) EUR 260,-
Solaris Feeder "Superspreader" (without hopper) EUR 390,-
Solaris Feeder "Pendulumspreader" (without hopper) EUR 210,-
Feed hopper 25 l volume, EUR 50,-
Feed hopper 45 l volume, EUR 70,-
Feed hopper 90 l volume, EUR 90,-
Pipe holder hopper support, EUR 25,-
All Prices in Euro ex works, VAT
excl.
Book-Tips:
Handbook on
Ingredients for Aquaculture Feeds
By Joachim W. Hertrampf, Felicitas Piedad-Pascual and Sik Lee Ong
(Illustrator), Hardcover 624 pages (2000).
Aquaculture - the commercial farming of aquatic organisms
in a controlled environment - requires formulated diets composed of various ingredients.
This Handbook aims for a better understanding of the food components that affect nutrition
and feeding of cultured fishes and crustaceans. Proper utilisation of these foodstuffs can
minimise environmental pollution and degradation. An overview of the nutrition of aquatic
animals precedes the discussion of each foodstuff. Traditional and non-traditional
ingredients are considered in alphabetical order. To evaluate the value of each foodstuff,
information is provided on its origin, economical significance, manufacture and processing
followed by chemical, physiological and other properties. An important feature of the
Handbook is the discussion of the feeding value of each ingredient and recommendations for
inclusion rates, legal aspects and precautions for their use. There are 52 chapters in
which 144 individual ingredients are considered. Included for easier understanding of the
text are 443 tables and 80 figures with approximately 1500 references. The Handbook is a
guide for anyone interested in aquaculture.
Nutrition and
Utilization Technology in Aquaculture
By David J. Sessa and C. E. Lim (Editors), Hardcover 288 pages
(1995).
Provides an overview of the current status of aquaculture
and discusses constraints and opportunities for aquaculture development. Current issues in
salmonid nutrition, recent developments in catfish, red drum, larval fish, and penaeid
shrimp nutrition, along with lipid nutrition, and the importance of fatty acids and
phospholipids in aquaculture are also included. Nutritional values of plant protein
products/by-products as alternative sources of protein in aquaculture diets are presented.
Sensory evaluation techniques to ensure high- quality products and the technology to
produce value-added products from fish processing discards are also discussed.
Nutrient
Requirements of Fish
By Committee on Animal Nutrition, Board on Agri National Research
Council, Paperback 114 pages (1994).
A subcommittee of the National Research Council reports on
dietary requirements; materials in feedstuffs other than nutrients that may affect
physical, palatability, or nutritional properties of the feed or metabolism of the fish;
antinutrients and adventitious toxins; digestibility and absorption; diet formulation and
processing; and feeding practices of various specifies. This edition combines data on all
species of finfish having commercial significance (new research indicates that because of
their similarities, coldwater and warmwater species do not warrant separate reports as has
been done in the past).
Nutrient
Requirements and Feeding of Finfish for Aquaculture
By Carl D. Webster and Chhorn Lim (Editors), Hardcover 416 pages (2002).
Provides a unique, complete coverage of
current information on nutrient requirements, feed formulations and feeding practices of
commercially important aquaculture species cultured around the world. Of interest to those
working professionally in the industry, graduate level students and researchers. Good
nutrition is fundamental to the success and sustainability of the aquaculture industry in
terms of economics, fish health, high quality product production and minimizing
environmental pollution. This book provides a unique, complete coverage of current
information on nutrient requirements, feed formulations and feeding practices of
commercially important aquaculture species cultured around the world. Each chapter
contains detailed feeding information on specific species and is written by an expert
nutritionist on that species. The book is of interest to those working professionally in
the industry, graduate level students and researchers.
Nutrition
and Feeding of Fish
By Tom Lovell (Editor), Hardcover 280 pages (2002).
Aquaculture is now recognized as a viable and profitable
enterprise worldwide. As aquaculture technology has evolved, the push toward higher yields
and faster growth has involved the enhancement or replacement of natural foods with
prepared diets. In many aquaculture operations today, feed accounts for more than one-half
the variable operating cost. Therefore, knowledge of nutrition and practical feeding of
fish is essential to successful aquaculture. This book is not written exclusively for
scientists but also for students, practicing nutritionists, and aquaculturists. It covers
the known nutrient requirements and deficiency effects for different fishes, and digestion
and metabolism of nutrients and energy. It discusses nutrient sources and preparation of
practical and research feeds. It gives directions for conducting fish nutrition and
feeding experiments. Feeding practices for salmonids, channel catfish, tilapias, shrimps
and hybrid striped bass are presented. Since the first edition of this book was printed,
the National Research Council of the National Academy of Sciences has revised the nutrient
requirements for fish. These revisions are in the present edition. Other additions to this
revised second edition are chapters on nutrition and fish health, and bioavailability of
nutrients. Each original chapter has been meticulously revised and updated with new
information. Aquaculture is a dynamic area and new technologies are being introduced
continuously; therefore, some of the material discussed in this revised edition may become
obsolete quickly. Nonetheless, the material presented has been thoughtfully selected and
updated to make it of maximum use to persons whose interests range from general
aquaculture to animal nutrition to feed manufacture.
Fish
Nutrition
By John E. Halver, Ronald W. Hardy and Daniel M. Hardy (Editors), Hardcover
500 pages (2002).
This third edition of Fish Nutrition has been updated
with selections from a myriad of publications which have appeared in the past decade. The
authors have focused on selected demonstrations of nutrient requirements and metabolism
which summarize the basis and applied principles of fish nutrition. It continues to review
"what we know and what we do not know" to stimulate research and better
understanding of the nutrient requirements and their role in growth, production, and fish
health as more and more effort is concentrated on using fish as the best animal for
protein and food production.
Fish
Nutrition in Aquaculture
By Sena S. De Silva and Trevor A. Anderson, Hardcover 340 pages (1995).
Aquaculture is a growing industry. A
vital component of the subject is feeding the organisms under cultivation. This book
provides a thorough review of the scientific basis and applied aspects of fish nutrition
in a user-friendly format. It will be of great use to individuals working or training in
the industry, and to fish feed manufacturing personnel. The present volume addresses both
the basic concepts of nutrition of finfish and the practical aspects of nutrition
pertaining to the aquaculture industry. It discusses the present status of the aquafeed
industry and deals with new ideas on feed-cost saving, particularly in semi-intensive
aquaculture. The potential problems relating to environmental pollution associated with
feeds and feeding are also addressed.
Feed Management
in Intensive Aquaculture
By Stephen Goddard, Hardcover 194 pages (1996).
This book is a guide to the management and use of
formulated feeds in semi-intensive and intensive fish and shrimp culture. Feeds represent
the major variable operating costs in intensive aquaculture, and optimizing their use
represents an opportunity for many farmers to increase or maintain the profitability of
their enterprise. Fish farmers have an ever widening range of feed types and feeding
methods from which to choose, and must carefully monitor the use of feeds in order to
control costs. This book includes details of those biological, environmental, and
nutritional factors which influence the feeding, growth and survival of fish and shrimp,
and of which some understanding is essential in the establishment of effective feeding
practices. Details are given of feed handling and storage methods, and the various methods
available for feeding fish are described and their relative methods appraised. Methods for
selection of the appropriate feed types, ration sizes, and feeding schedules are included,
and details given of how to measure performance of feeding programs. Throughout the text
reference is made to key areas of current research, and examples are drawn from different
sectors of the industry to illustrate the general principles of feed management.
Feeding
Ecology of Fish
By Shelby D. Gerking, Hardcover 416 pages (1994).
A comprehensive review of the literature, useful both
to fisheries scientists and to theoretical ecologists, constructs a comprehensive
framework for understanding the variable feeding patterns of fish. Synthesizes a broad
range of empirical studies to categorize patterns by trophic level: plant eaters and
detritus feeders, and plankton, benthic, and swimming predators.
Food
Intake in Fish
By Dominic Houlihan, Thierry Boujard and Malcolm Jobling (Editors), Hardcover
440 pages (2001).
A comprehensive book covering in depth all major aspects of
food consumption by fish. It is of vital importance to all those involved in the
aquaculture industry.
Just let me know if there is any special question,
with best regards
Martin Hochleithner
Dear Reader,
here are the actual AquaTech NEWS and our new offer of the month (May 2003):
Use this floating Aerator-Pump to create a fontain spray
pattern:
"Spray" Pump Aerator 0.3 to 1.0 HP
floating (220 V/50 Hz), EUR 190,-
"Spray" Pump Aerator 1.4 to 2.4 HP floating (380 V/50 Hz), EUR 290,-
All Prices in Euro ex works, VAT
excl.
This "Spray"
aerator pump is specially suitable for ponds and introduce a lot of oxygen into the water.
If the self floating pump is connected with the spray nozzle it becomes an aerator with
fontain spray pattern. If the supplied nozzle is changed to the supplied pipe adaptor it
can be used as a floating pump for irrigation. The change of theese two functions doesn't
need any tool. They have a very reasonable price and are easy to install, eighter floating
on the water surface or submerged to depth (with an anchor stone).
Just let me know if there is any special question,
with best regards
Martin Hochleithner
Hello,
here are the actual AquaTech NEWS and our new offer of the month (April 2003):
Ideal probes for your own oxygen monitors such as
multichannel or stand-alone PLC based systems:
1 Oxygen probe with temperature sensor, each EUR 340,-
1 Oxygen probe without temperture sensor, each EUR 290,-
10 Oxygen probes without temperature sensor, each EUR 240,-
50 Oxygen probes without temperature sensor, each EUR 190,-
Cable (2-core), per meter EUR 5,-
All Prices in Euro ex works, VAT
excl.
High performance, very robust galvanic oxygen probe for the
measurment of dissolved oxygen in water and air. Optionally available also with a
temperature sensor. The probe with strong teflon membrane (which is supplied with a pack
of 5 membranes and 50 ml of electrolyte) calibrates to 100% in air, is self-temperature
compensating (from 0 to 40 °C), very accurate (usually better than +/- 0.2 mg/l) and
has no zero point error. It has completely sealed internals, so there is no risk of
insulation failure, is very easy to maintain, can be serviced in the field and is very
stable (usually 3 to 6 months between calibration checks). It is connected with good
quality two core cable (tested up to 2000 m).
New Books:
Restoration of
Puget Sound Rivers
By David R. Montgomery (Editor), et al.
Binding: Paperback
Publication date: February 2003
Price: $ 30.00
North Atlantic
Seafood: A Comprehensive Guide with Recipes
By Alan Davidson
Binding: Paperback
Publication date: February 2003
Our Price: $ 17.47 - You Save: $ 7.48 (30%)
Fly-Fishing
Western Trout Streams
By Jim McLennan
Binding: Paperback
Publication date: February 2003
Our Price: $ 11.87 - You Save: $ 5.08 (30%)
Aquarium Fish
Breeding
By Jay F. Hemdal
Binding: Paperback
Publication date: February 2003
Our Price: $ 9.56 - You Save: $ 2.39 (20%)
Aquarium Sharks
& Rays: An Essential Guide to Their Selection, Keeping, and Natural History
By Scott W. Michael, et al.
Binding: Hardcover
Publication date: February 2003
Our Price: $ 31.47 - You Save: $ 13.48 (30%)
Sharks and Rays
(Junior Adventure)
By Sharon Dalgleish
Binding: Library Binding
Publication date: February 2003
Price: $ 17.95
Just let me know if any special question,
with best regards
Martin Hochleithner
Dear Reader,
here are the actual AquaTech NEWS and our new offer of the month (March 2003):
Design Ozone Generators to your requirements for oxidation,
purification and disinfection, and extend it when your demand increase, with the following
components:
RMU-04, O3-Generator 4 g/h at 5
l/min dry air, 105 Watt, EUR 1.490,-
RMU-08, O3-Generator 8 g/h at 10 l/min dry air, 210 Watt, EUR 1.990,-
RMU-16, O3-Generator 16 g/h at 16 l/min dry air, 420 Watt, EUR 2.990,-
RMC-02, Controller + Air Dryer for up to 2 RM modules, EUR
2.990,-
RMC-12, Controller for up to 12 RM modules, EUR 1.990,-
VMD-16, Air Dryer for up to 10 RM modules, EUR 2.990,-
BBC-01, Balance Barometer for all modules, EUR 90,-
RS-03, Tower/Rack for up to 3 RM units, EUR
390,-
RS-06, Tower/Rack for up to 6 RM units, EUR 490,-
RS-08, Tower/Rack for up to 8 RM units, EUR 590,-
RS-10, Tower/Rack for up to 10 RM units, EUR 690,-
Other generators and accessoire on request.
All Prices in Euro ex works, VAT excl.
The most effective way to produce ozone commercially is through the
use of pulse injected corona discharge. All ozone generators have a power switch, fuses
against voltage surges, cooling fans and flow meter and can be feed dry air or oxygen,
free of dust and oil (max. pressure ± 0.36 bar). The ozone output range from 5-17 g/h at
a concentration of 3-38 g/m3 when 1-19 l/min are feed (0.1-6.0 % from dry air). A minimum
air flow is not required. If oxygen is feed instead of air, the ozone output can be
doubbled approximately. The power consumption is typically 8 Watt/g O3 based on O2,
cooling included. The dryers are vacuum driven and have a dewpoint of -60 °C or better
which results in high ozone output (over 98 %). The controller includes an indicator (blue
crystals), sensor with interlock and status light as well as time clock for real ozone
demand evaluation. Each of this generator and the dryer/controller module have dimensions
of WxH 431x177 mm (17x7 ") and can be set on shelf or fitt also on tower-racks 508 mm
(20 ") deep, for 3 to 10 units. Each module has a weight of 8-14 kg only. All units
are cooled by ambient air (± 35-40 °C, max. 85 % R.H.) and are available for 110 or 230
V/50 or 60 Hz.
Ozone is a naturally occurring gas created from oxygen atoms.
The oxygen molecule is made up of 2 oxygen atoms. These oxygen molecules are broken into
atoms by the corona discharge during lightning storms or by UV light from the sun. Single
oxygen atoms cannot exist alone without regrouping back into di-atomic oxygen molecules.
During this recombination stage some atoms will regroup into loosely-bonded tri-atomic
oxygen. This new molecule is called Ozone. Due to the loose bond in this oxygen molecule -
ozone is a very strong oxidant and an ideal chemical-free purification and a disinfecting
agent.
Disinfection by tri-atomic oxygen (Ozone) occurs through the rupture of the cell
wall. This is a more efficient method than Chlorine which depends upon diffusion into the
cell protoplasm and inactivation of the enzymes. An ozone level of 0.4 ppm for 4 minutes
has been shown to kill any bacteria, virus, mould and fungus. Ozone therefore will
inactivate viruses on contact, even at very low residual concentrations.
Most tastes and odors in water supplies come from naturally-occurring or manmade
organic material contamination. Bacterial decomposition of humic material imparts taste to
surface waters. The action of algae and actinomycetes gives rise to objectionable tastes.
Chlorination of humic material leads to chlorophenols that are of far stronger odor and
more antigonistic to taste than the original phenol and unreacted Chlorine. Most of these
odors are removed with Ozone treatment. Even some sulphur compounds such as hydrogen
sulfide, mercaptans or organic sulphides can be oxidized to Sulfates with Ozone. Ozonation
of water contaminated with Algae oxidizes and floats the Algae to the top of the
reservoir. The ozone will also oxidize the metabolic by-products of the Algae and remove
the undesirable odor and taste.
Ozone oxidizes the transition metals to their higher oxidation state in which they
usually form less soluble oxides that are then easy to separate by filtration. Iron, for
example, is usually in the ferrous state when dissolved in water. With Ozone it yields
ferric iron which is further oxidized in water to Ferric Hydroxide - a molecule that is
very insoluble and precipitates out. Other metals such as Arsenic (in the presence of
Iron), Cadmium, Chromium, Cobalt, Copper, Lead, Manganese, Nickel, and Zinc can be treated
in a similar way. At Ozone levels above 4 ppm however, Manganese will form soluble
permanganate, showing up as a pink color.
Surface waters are generally colored by natural organic materials such as humic,
fulvic and tannic acids. These compounds result from the decay of vegetative materials and
are generally related to condensation products of phenol-like compounds; they have
conjugated carbon/carbon double bonds. When the series of double bonds extend upwards of
twenty, the color absorption shows up in the visible spectrum. Ozone is attracted to
breaking organic double bonds. As more of these double bonds are eliminated, the color
disappears. Surface water can usualy be decolorized when treated with 2 to 4 ppm of Ozone.
Oxidation of dissolved organic materials with Ozone results in polar and charged
molecules that can react with Polyvalent Aluminum or Calcium to form precipitates.
Treatment of surface water with up to 0.5 ppm of Ozone results in a decrease in turbidity,
improved settleability, and a reduction in the number of particles. This treatment,
referred to as pre-ozonation, destabilizes the colloid with a resulting reduction in the
amount of coagulant needed to produce a clear filtrate. Ozone will degrade many organic
compounds, such as sugars, phenols, alcohols, and as it degrades these materials it turns
again into Oxygen.
When comparing disinfection efficiency, Ozone is 25 x more effective than
Hypochlorous acid (HOCl), 2500 x better than Hypochlorite (OCl) and 5000 x more than
Chloramine (NH2Cl). These results are measured from the comparison of CT
constants - the Concentration x Time needed to kill 99.99% of all micro-organisms.
Chlorine reacts with organic materials to form organics containing Chlorine such as
Chloroform, Carbon Tetrachloride, Chloromethane and others, generally known as
Trihalomethanes (THMs). Ozone reacts with Organics to break them down into simpler
compounds. Ozone does not react significantly with THMs as they are more resistant to
oxidation - it takes a very long time to achieve full oxidation. Some THMs are removed as
a result of physical sparging by the aeration action of the ozone/air mixture.
Book-Tips:
Ozonation of
Drinking Water and of Wastewater
By Christiane Gottschalk, Judy Ann Libra and Adrian Saupe, Hardcover
189 pages.
A Practical Guide to Understanding Ozone and its
Application. The ozonation of compounds in water is a complex process. The mechanisms are
very complicated, the parameters are many, but the possibilities of developing
cost-effective treatment schemes for drinking water and waste water are large. Most books
available today concentrate on either drinking water or waste water treatment, seldom
dealing with both or explaining the essential differences. And only rare exceptions deal
with the how-to of ozone experiments. This practical guide fills the gap. It contains the
cumulative knowledge on experimental design, execution, interpretation and application.
Drawing on experience gained from hours spent on laboratory research with drinking and
waste waters, literature study, intensive discussion with leading experts, perplexed
reflection and deep thought, the book offers practical help to avoid common pitfalls and
unnecessary work. This book is aimed at professionals in industry and research currently
using ozonation who want to optimize their system, as well as students beginning work with
ozonation. It contains just enough information for beginners to start with, but goes
rapidly to the detailed information that advanced readers need.
Ozone in Water
Treatment: Application and Engineering
By Bruno Langlais, David A. Reckhow and Deborah R. Brink (Editors), Hardcover
592 pages.
With the advent of the Safe Drinking Water Act Amendments
of 1986, many water utilities are reexamining their water treatment practices. Upcoming
new regulations on disinfection and on disinfection by-products, in particular, are the
primary driving forces for the big interest in ozone. It appears that ozone, with its
strong disinfection capabilities, and apparently lower levels of disinfection by-products
(compared to other disinfectants), may be the oxidant/disinfectant of choice. Many
utilities currently using chlorine for oxidation may need to switch due to chlorine
by-product concerns. Utilities using chloramines may need to use ozone to meet CT
requirements. This book, prepared by 35 international experts, includes current technology
on the design, operation, and control of the ozone process within a drinking water plant.
It combines almost 100 years of European ozone design and operating experience with North
American design/operations experience and the North American regulatory and utility
operational environment. Topics covered include ozone chemistry, toxicology, design
consideration, engineering aspects, design of retrofit systems, and the operation and
economics of ozone technology. The book contains a "how to" section on ozone
treatability studies, which explains what information can be learned using treatability
studies, at what scale (bench, pilot, or demonstration plant), and how this information
can be used to design full-scale systems. It also includes valuable tips regarding
important operating practices, as well as guidance on retrofits and the unique issues
involved with retrofitting the ozone process. With ozone being one of the hottest areas of
interest in drinking water, this book will prove essential to all water utilities, design
engineers, regulators, and plant managers and supervisors.
Impacts
of Ozonation on the Formation of Chlorination and Chloramination By-Products
By Philip C. Singer, Gregory W. Harrington, Gretchen A. Cowman, Marla
E. Smith, Daniel S. Schechter and Lori J. Harrington (Editors), Paperback, 311
pages.
Presents a report evaluating the impact of ozonization
on disinfection by-product formation from chlorination and chloramination in a number of
different types of waters, under a variety of water quality conditions representative of
conditions in the waterworks industry. Information is presented in sections on
experimental procedures, experimental results, and discussion, with appendices on
protocols and experimental conditions. Results of this research indicate that ozonization
followed by chloramination can be a very effective strategy for the control of halogenated
disinfection by-products.
Optimizing
Ozonation for Turbidity and Organics (Toc) Removal by Coagulation and Flocculation
By William Becker, Charles R. O'Melia and William C. Becker, Paperback
236 pages.
Just let me know if any special question,
with best regards
Martin Hochleithner
Hello,
here are the actual AquaTech NEWS and our new offer of the month (February 2003):
Fish scaling made fast and easy, with:
Fish scaling device 230 V/50 Hz, 0.1 kw, EUR
790,-
Plexiglas Splash-Cover, EUR 90,-
All Prices in Euro ex works, VAT
excl.
This fish
scaling device is well protected from spray water, safe in operation and securely
insulated, tested to 4000 V. The motor can be used continuously. The machine LxWxH of
23x24x19 cm with a weight of 9 kg, can be connected to a grounded or non-grounded wall
socket. The laminated, flexible axle (160 cm long)
consists of two layers of steel, one layer of insulating compound and one layer of
plastic. The ball bearings in the top, with which the fish is scaled, are waterproof and
all outside parts are rustproof made from stainless steel. The device is supplied
completely with handle, feets, 160 cm cable and plug.
As accessoire a 6 mm strong plexiglas cover (LxWxH: 84x50x29 cm) is available,
under which the fish can be scaled to avoid spraying of scales during scaling.
New Books:
Nephros: Biology
and Fishery
By Andy Read
Binding: Hardcover
Publication date: January 2003
Responsible
Fisheries in the Marine Ecosystem
By Michael Sinclair, G. Valdimarsson (Editors), et al.
Binding: Hardcover
Publication date: December 2002
Aquatic Telemetry (Developments in Hydrobiology)
By Eva B. Thorstad, Ian A. Fleming, Tor Fredrik
Naesje
Binding: Hardcover
Publication date: November 2002
Price: $ 106.00
The Economics of
Marine Resources and Conservation Policy: The Pacific Halibut Case Study with Commentary
By James A. Crutchfield and Arnold Zellner (Editors)
Binding: Hardcover, 42 pages.
Publication date: January 2003
Price: $ 60.00
Hierarchical
Perspectives on Marine Complexities
By Spencer Apollonio
Binding: Hardcover, 320 pages.
Publication date: November 2002
Price: $ 59.50
Aquatic
Genomics: Step Toward a Great Future
By Nobuyoshi Shimizu, T. Aoki, I. Hirono, F. Takashima (Editors)
Binding: Hardcover
Publication date: December 2002
Price: $ 165.00
Ecological
Aquaculture
By Barry A. Costa-Pierce
Binding: Hardcover, 320 pages.
Publication date: January 2003
Price: $ 110.00
Diseases of
Finfish in Cage Culture
By P.T.K. Woo, D.W. Bruno, L.H.S. Lim (Editors)
Binding: Hardcover, 320 pages.
Publication date: November 2002
Price: $ 149.00
Tetras and other
Characins
By Mark Phillip Smith and Michele Earle-Bridges (Illustrator)
Binding: Paperback, 96 pages.
Publication date: November 2002
Price: $ 7.95
Marine Fish
(Nature Kids)
By Pat Slater
Binding: Library Binding, 52 pages.
Publication date: November 2002
Price: $ 19.95
The Life Cycle
of a Salmon (Life Cycles)
By Lisa Trumbauer, Gail Saunders-Smith (Editor)
Binding: Library Binding, 24 pages.
Publication date: January 2003
Price: $ 14.60
Trout from Small
Streams
By Dave Hughes
Binding: Paperback, 176 pages.
Publication date: January 2003
Our Price: $ 11.87 - You Save: $ 5.08 (30%)
Trout at Ten
Thousand Feet: Reflections of a Passionate Fisherman
By John Bailey
Binding: Hardcover, 176 pages.
Publication date: January 2003
Our Price: $ 13.97 - You Save: $ 5.98 (30%)
Flyfisher's
Guide to Freshwater Florida
By Larry Kinder
Binding: Paperback, 520 pages.
Publication date: January 2003
Our Price: $ 18.87 - You Save: $ 8.08 (30%)
The Complete
Idiot's Guide to Sharks
By Mary Peachin
Binding: Paperback, 360 pages.
Publication date: December 2002
Our Price: $ 13.27 - You Save: $ 5.68 (30%)
We are present, at:
International Trade Fair for Aquaculture, Professional
Fishing, Angling and Aquaristic.
AQUA-FISCH in Friedrichshafen on Lake Constance, Germany, New Exhibition Ground (Hall A2)
Booth 303, from 27. February to 2. March 2003.
The entrance fees are EUR 8,- per person and day, but
if you want to attend the exhibition, we pay for you and send you 2 TICKETS for FREE. Just
let us know your full name and adress.
Hope to welcome you on our stand in Fridrichshafen,
with best regards
Martin Hochleithner
Dear Reader,
here are the actual AquaTech NEWS and our new offer of the month (January 2003):
No longer any problem or injury while opening oysters and other
bivalves, with:
Oyster opener EUR 160,-
All Prices in Euro ex works, VAT
excl.
Opening oysters with a knife can be difficult and dangerous.
One slip or miscalculation and there's a good chance of serious injury. We can offer a
final solution for the problem of opening oysters (and other bivalves). Our opener helps
you out of whatever difficulty or awkwardness often accompagning you suring your meetings
or circumstances and quickly and easily opens oysters, clams and other bivalves. It saves
labour costs and anyone in your operation, restaurant or kitchen can shuck oysters without
training. The (15 x 30 cm) ground plate of the opener is in cast aluminium which will keep
treatment during live, the handle in polypropylene and the rest in stainless steel.
Book-Tips:
Production of
Aquatic Animals: Crustaceans, Molluscs, Amphibians, and Reptiles
By C.E. Nash (Editor), Hardcover, 244 pages (1991).
This book provides a comprehensive description of the
production and husbandry of aquatic animals, in particular the most important farmed
species of crustaceans, molluscs, amphibians, and reptiles. The farming of fish is the
subject of a parallel volume. It is directed at both academic and non-academic readers,
especially those with a broad interest in agriculture, and animal husbandry in particular.
Each chapter offers a balance of information on current world farming production,
principles and practices of husbandry, and key research areas which made farming possible
or which are still constraining further development.
Molluscan
Shellfish Farming
By Brian E. Spencer, Hardcover, 272 pages (2002).
Invaluable commercial information to
farmers, managers, equipment and feed suppliers, to marketing, sales, and trading
personnel, as well as to libraries and other research establishments where aquaculture is
studied or taught.
Estuarine
and Marine Bivalve Mollusk Culture
By Winston Menzel (Editor), Hardcover, 376 pages (1991).
This book presents the biology, culture techniques,
research and development, and future of the fishery of some of the most important bivalve
mollusks cultured throughout the world. The book emphasizes those species that are truly
cultured during some part of their life cycle rather than those that are harvested from
natural populations. Graphs and figures summarize fisheries information and provide quick
access to important production figures. Species covered include oysters, soft-shell and
hard-shell clams, scallops, mussels, pearl oysters, razor clams, cockles and giant clams.
Geographic areas featured include United States, Mexico, South and Central America,
Europe, India, Japan, China, Philippines, Australia, New Zealand, and the coral atolls of
the Pacific Ocean. This book brings together the lifetime efforts of the editor to
characterize and improve bivalve mollusk culture worldwide. Aquaculturalists, private
oyster and bivalve culturalists, and fisheries scientists will find this book to be an
invaluable guide to bivalve mollusk culture.
The Mussel
Mytilus: Ecology, Physiology, Genetics and Culture
By Elizabeth Gosling (Editor), Hardcover, 590 pages (1992).
Mussels, of the genus Mytilus are among
the commonest of marine molluscs and constitute an important element in the ecology of
coastal waters. The mussel's sessile habit makes it suited to cultivation and as
filter-feeder an effective concentrator of trace toxic substances. They are thus excellent
biomonitoring organisms of coastal water quality. The mussel has been extensively used in
experimental studies and a vast body of data on its use in fundamental physiological,
biochemical, genetic and toxicological investigations is available. More recently this
knowledge has extended into the newer fields of nutrition, environmental monitoring,
toxicology, disease, population genetics and biotechnology. This book presents a thorough
compilation of state-of-the-art information on mussels in the form of critical review
papers written by leading authorities in the field. For workers involved in both research
and practical aspects of the biology.
The Oyster: A
Popular Summary of a Scientific Study
By William K. Brooks and Kennedy T. Paynter (Intro.), Paperback, 230
pages (1996).
This reprinting of a book first printed over a hundred
years ago is an enjoyable, if somewhat depressing review of the managment and
mismanagement of the oyster resources of the Chesapeake Bay. The first half is a review of
the biology, and the second goes into all of the politics and problems of trying to manage
an open fishery. Much of what is said rings true today.
Heaven on
the Half Shell: The Story of the Northwest's Love Affair with the Oyster
By David G. Gordon, Nancy E. Blanton, Terry Y. Nosho, Kenneth K. Chew, Paperback, 160
pages (2001).
This title is the true story of oyster farming in
the Pacific Northwest. Entertaining text and fascinating photos draw readers into the
world of pioneering aquaculturists, scientists, and oyster connoisseurs who have shaped
this unique industry over the course of 150 years. Eighteen oyster recipes, ranging from
the time-honored Hangtown Fry to the nouvelle Pesto Roasted Oysters, round out this lively
portrait of the bivalve that has influenced the economies and cultures of the Northwest.
Evergreen
Pacific Shellfish Guide
By J. D. Wade, Spiral-bound, 112 pages (2000).
Learn about the different varieties of clams, the how
and where of trapping Dungeness crabs, and how to "shuck" an oyster. Discover
the gourmet delicacy of Mediterranean mussels and the best time of year to harvest these
shellfish. Illustrations and color photos will help you understand all the info available
in this complete guide for shellfishing. Become educated on some of the environmental
issues that will determine whether our Pacific Northwest smorgasbord of shellfish will be
available for succeeding generations. And let the author share his favorite shellfish
recipes with you. All this along with charts and beach listings will help in making your
next trip to harvest shellfish a great success.
Clams:
How to find, catch, and cook them
By Curtis J. Badger, Paperback, 80 pages (2002).
This practical, illustrated how to book
describes the best ways to clam, including where to find the creatures, what equipment to
use, and how to collect and cook them with dozens of tasty clam recipes included. The
author, a veteran clammer along Virginia's clam rich Eastern Shore, also examines the
natural history of clams and answers frequently asked questions about them.
Recipes
for Sea Food: How to prepare and serve Fish, Oysters, Clams, Scallops, Lobsters, Crabs,
and Shrimp
Paperback, 164 pages (2001).
Originally published in 1913, this book contains recipes on
how to prepare and serve fish, oysters, clams, scallops, lobsters, crabs and shrimp.
Additionally: An Expert Treatise on Fish as a Food - Advice to the Cook - Time Tables for
Cooking - Tables of Measures and Proportions - Rules for the Kitchen - Terms Used in
Cooking - Practical Points - Household Hints - Extracts from Game Laws.
With best wishes for success and prosperity in the New Year 2003
Martin Hochleithner
AquaTech
http://www.aquatech.8m.com
Falls Sie unsere
Neuigkeiten lieber in deutsch erhalten möchten, lassen Sie es
uns bitte wissen! Danke ;-)
[News 2002 - News 2001 - News 2000]