Gourt > Business > Agriculture and Forestry > Aquaculture > Equipment Suppliers (2)
Slow sand filters are used in water purification for treating raw water to produce a potable product. They are typically 1 to 2 metres deep, can be rectangular or cylindrical in cross section and are used primarily to treat surface water. The length and breadth of the tanks are determined by the flow rate desired by the filters, which typically have a loading rate of 0.1 to 0.2 metres per hour (or cubic metres per square metre per hour).
Features
Slow sand filters have a number of unique qualities:
- Unlike other filtration methods, slow sand filters use biological processes to clean the water, and are nonpressurized systems. Slow sand filters do not require chemicals or electricity to operate.
- Cleaning is traditionally by use of a mechanical scraper, which is usually driven into the filter bed once it has been dried out. However, some slow sand filter operators use a method called "wet harrowing", where the sand is scraped while still under water, and the water used for cleaning is drained to waste;
- For municipal systems, it is desirable for the maximum required throughput of water to be achievable with one or more beds out of service;
- Slow sand filters require relatively low turbidity levels to operate efficiently. In summer conditions and in conditions when the raw water is turbid, binding of the filters occurs more quickly, and pre-treatment is recommended.
- Unlike other water filtration technologies that produce water on demand, slow sand filters produce water at a slow, constant flow rate and are usually used in conjunction with a storage tank for peak usage. This slow rate is necessary for healthy development of the biological processes in the filter.
While many municipal water treatment works will have 12 or more beds in use at any one time, smaller communities or households may only have one or two filter beds.
More on [ Slow sand filter ]
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B Aquatic Distribution, Inc. - Equipment distributor and supplier. Product information, contacts.
Co. - Manufacturer of a range of fishing equipment, based in Taiwan. Detailed product information, contacts.
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AGK Technology - Suppliers of a wide range of aquaculture equipment throughout the Pacific region.
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Amon Industrial Oyster Knives - Suppliers of pneumatic oyster opening knives. Based at Kaitaia, New Zealand.
Meta Description: [ Amon Industrial oysterknives will reduce the labour cost of shucking oysters by up to 50%.Time saving device.Easily cleaned totally safe to use.Very efficient. ]
Aqua-Dyne Computer Corp - Monitoring, testing and alarm equipment and software with application in aquaculture. Distributor list, technical support online product registration and shopping cart.
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Aqua2000 - Supplier of equipment and feeds to agriculture and aquaculture. Comprehensive illustrated product information and contacts.
Aquaculture Supplies - Manufacturers, importers and distributors of aquaculture equipment, within Australia. Products, contacts.
Aquaculture Technology - Suppliers of a range of equipment and services to Aquaculture, based in Austria. Site also references technical information on species and relevant publications
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Aquamarine - Designer and manufacturer of equipment for aquatic weed harvesting, in Oakville, Ontario, Canada. Product information and contacts.
Aquamerik Inc. - Provides oxygenation, filtration, aquaculture, and environmental monitoring equipment.
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Aquantic Ltd - Manufacturer and supplier of electronic fish counters suitable for recording migratory fish movements. Product information and contacts.
Aquarium Designs - Design, install and service custom aquatic habitats. Systems for tropical or coldwater, domestic or commercial applications including customised life support. Step through site navigation.
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Aquarius Systems - Manufacturer of weed harvesters for the control of aquatic vegetation. Product information, parts catalog, contacts.
Meta Description: [ Aquarius provides aquatic weed control equipment to cut and remove lake weeds like water hyacinth, milfoil, hydrilla, salvinia molesta, and other aquatic weeds that make waterways unusable. ]
Aquasonic Pty Ltd - Supplies a range of products suitable to aquaculture. Product catalogue, contacts.
Meta Description: [ Aquasonic Pty Ltd is Australia's leading Aquaculture and Aquarium supplier supplying thousands of products to the industry and shops. Information on our aquaculture supplies and aquarium supplies ]
Aquatic Diagnostics Ltd. - An international biotechnology company that develops and markets monoclonal antibodies useful in monitoring the health of fish. Information on product and uses, contacts for orders and enquiries.
Meta Description: [ ADL is an international biotechnology company that develops and markets monoclonal antibodies (Mabs) to monitor fish health. ]
Aquatic Eco-Systems Inc. - Suppliers of a range of products for aquaculture, hydroponics, lakes, ponds and aquariums. Site includes a searchable catalog and online buying facilities.
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Aquatic Eco-Systems, Inc. - Manufactures and distributes a full inventory of aquaculture and aeration systems and equipment.
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Aquionics Pty Ltd. - Designers and manufacturers of commercial aquariums and water treatment systems. Australia .
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Bio-Con Labs Inc. - Aquaculture research and design facility providing filtration solutions for aquatic systems containing live plants and animals. Includes a library of aquaculture research available online.
Biscayne Aquaculture, Inc. - Provides complete planning, design, construction and consultation on aquatic life support systems.
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Bishop Aquatic Technologies Inc. - Supplier of equipment and products to the aquaculture industry. Product information, distributor list, and company contacts. Based in Ontario, Canada
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Clam Grader Inc - Clam grading machine manufacturer. Product information and contacts.
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Columbia Fiberglass Inc - Manufacture custom fiberglass, and fiberglass aquaculture tanks of various sizes and shapes.
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Cowex A/S - Supplier of computer based control, regulation and supervision equipment to aquaculture enterprises. Products, services, and contacts.
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process-technical tasks, in particular computer-based control, regulation and supervision within areas of aquaculture,
water supply and industrial automation. ]
Craig Ocean Systems Inc. - Manufacture data acquisition devices for aquaculture, agriculture and waste water treatment. Application notes and a downloadable catalog in pdf format.
Meta Description: [ Affordable Data Aquisition Devices and Control Systems for Aquaculture, Agriculture and Water Treatment systems by COS Inc. ]
CropKing.com - Aquaponics and Aquaculture - Suppliers of recirculating aquaculture and aquaponic systems suitable for research and educational use.
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Emperor Aquatics Inc. - Emperor Aquatics Inc. manufactures filtration systems for aquaculture.
Meta Description: [ Emperor Aquatics Inc. manufactures and distributes aquarium filters, pond filters, ultraviolet sterilizers, protein skimmers and other aquaculture supplies ]
Farming IntelliGene Technology Corporation - Supplier of the diagnostic reagents, equipment, and related services of marine shrimp viral diseases in the Taiwan area.
Fiomarine Industries - A submersible marine marker buoy and retrieval system, for aquaculture and research applications, where a standard surface buoy would have safety as well as security implications.
Fish Farm Supply Co Ltd - Supplies a range of aquaculture equipment from Ontario, Canada. Product information and order form.
Global Aquatics, Ltd. - Aquaculture and fish farming systems and equipment.
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H. Christiansen Nets Co. - Custom made nets for fishing, aquaculture, sports, and birds.
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I.A.S. Products Ltd. - Provides feed control systems as well as underwater lighting and video cameras. Includes product and support information. Based in Canada.
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Jensorter, Inc - Manufacture five fish egg sorter models, three models of fish egg counters for salmonid species and a warm-water species fish fry counter.
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Marine Biotech, Inc. - Suppliers of aquatic holding systems for the aquaculture, seafood and scientific research markets.
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Mercatus AS - Supplier of information systems to the Aquaculture industry, based in Norway. Product information, list of professional references and contacts.
Microtack - Manufacturer of microbial enzyme products for organic shrimp farming, prawn, fish culture, agricultural, probiotics bacterial, livestock, composting, municipal and industrials wastewater treatment.
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netcleaner.com - Manufacturers of underwater net cleaning equipment, based in Florida, USA. Contacts.
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New generation Aquaculture Probiotics - Aquaculture biotechnology and nutrition products manufacturer and supplier with bases in India, Australia and USA. Product information and contacts.
Nioxy Incorporated - Canadian distributors of non-cryogentic oxygen generators, suitable for use in aquaculture and effluent treatment. Product information and contacts.
Off-shore Fish Farmer - Itsazi Aquaculture Systems promote and sell a number of static and ship based marine aquaculture systems.
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Oxyguard International - Manufacturer of dissolved oxygen measuring equipment, for use in acquaculture, waste water treatment, power plants, and other industrial applications.
Pisces Engineering Ltd - Specialist Aquacultural Engineers and suppliers of aquaculture equipment, in Stirling Scotland. Product news, information, contacts.
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PMC Production LC - Suppliers of an Aquatic Weed Harvester useful in the eradication of milfoil, hyacinth, hydrilla and other water-borne weeds.
Polar Eyes - Distributors of titanium heat exchangers suitable for use in the aquaculture, food services and petrochemical industries.
Meta Description: [ Offering tube and shell titanium heat exchangers suitable for aquaculture, swimming pool, petrochemical, or food industry applications. ]
Poly Tank Inc. - Manufacture a range of polytanks for aquaculture and acid . Includes specifications and tank size charts.
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Poly-Flex Inc. - Supply polyethylene geomembranes for lining environmental control and water conservation facilities. Includes a listing of dealers, publications and industry links .
Meta Description: [ Poly-Flex, Inc. manufacturers high quality geomembrane liner products for a wide range of environmental and containment applications. ]
Quadra Services Ltd. - IDEMA net cleaners for aquaculture net-cages
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Scanz Technologies Ltd - Supplies specialist equipment to the aquaculture, fish, meat and dairy processing industries, including oxygen generation, robotic feeders, fish pumps and processing equipment.
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Seapa Pty. Ltd. - Distributor of plastic injection moulded oyster baskets.
Meta Description: [ Innovative aquaculture products for the oyster and shellfish growing industry ]
Seepage Control Inc - Specialists in seepage control of lakes and ponds with treated soil and liners.
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Solway Fishery - Suppliers of equipment to aquaculture, water management and sea life centers. Site includes downloadable product catalogue. Based in Dumfries United Kingdom.
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Sort Rite International - Manufacturers of seafood and shrimp processing equipment, based in Texas, USA. Product and service information, spare parts listing, model plant layouts, contacts.
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Southern Aquaculture Supply Inc - Suppliers of a range of aquaculture supplies and equipment, Lake Village, Arkansas, USA. Online catalogue.
Meta Description: [ Aquaculture Supply, scales,nets, aeration,meters, chemicals, graders ]
Success Float Company - Supplies range of fishing net, twine and rope, and floats in a variety of shapes and sizes. Based in Jiangsu Province China.
Super Peace Enterprise Co., Ltd. - Suppliers of aquarium accessories, based in Taiwan. Product information and contacts.
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Texas Aquatic Harvesting - Manufacturer of several types of aquatic weed harvester.
Townsend Garage Inc - Manufacturer of clam rakes, sweepers and other tools for aquaculture. Based in Cheriton Virginia, USA.
Vaki-DNG Ltd. - Develop, manufacture and market hi-tech equipment for the commercial fishing, fish farming and the environmental market. Product brochures, specifications and videos .
Meta Description: [ Vaki ltd is a leading company in development of fish counting technology ]
Water Management Technologies, Inc. - Provides a range of equipment and engineering expertise to the aquaculture and waste water industries. Products include pumps and monitors .
Meta Description: [ Water Management Technologies of Baton Rouge , LA offers engineered solutions to your water quality management needs. ]
WriteCraft Enterprises - Tag printing software designed specifically for the shellfish industry.
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