Tightening restrictions and environmental concerns shape how aquaculture operators are designing their effluent management systems to pass water back into the environment.
Pentair Aquatic Eco-Systems has scientific and engineering experts to help solve your effluent management challenges.
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The primary pollutants from aquaculture are particulates composed of fish excrement and uneaten feed. Settling ponds have been the standard for removal of these wastes. Although ponds provide acceptable reduction of total suspended solids (TSS), long retention of the solids can result in decomposition that degrades water quality. Other disadvantages include the acreage needed for ponds and the remaining sludge that must be removed after ponds are drained. More advanced alternatives offer improved water quality while saving land and other costs. Micro-screen drum filters are self-cleaning and ideal for quick, continuous removal of suspended solids.
PR Aqua RotoFilters
PR Aqua Rotofilters are trusted by facilities worldwide for critical filtration needs. Designed with the needs of the commercial operator in mind, the filters are also inexpensive to operate. Rotofilters are available in two configurations – fully-enclosed or frame-mounted – with flow rate capacities from 50 to 7,000 gallons per minute.Learn more
Biofiltration Systems Keep Your Fish and the Environment Healthy
A key challenge is the buildup of ammonia nitrogen resulting from fish metabolism. Nitrification is the most commonly discussed and widely known facet of biological filtration and is undoubtedly the most critical since it deals with the breakdown of strongly toxic animal wastes. Robust bacteria colonization is essential to the nitrification process of converting ammonia in tank water to less-toxic nitrite and ultimately nitrate.
Sweetwater® Low-Space Bioreactor Filter
This nonpressurized biofilter is much less sensitive to flow rate variations and power interruptions than fluidized bed sand biofilters. When operated in low-head recirculating systems, it can easily be sunk into the floor to reduce the pump pressure. Because air is used to circulate the media, the LSB both adds oxygen and strips carbon dioxide.Learn more
Learn more from our scientists and engineers about effluent management with these downloadable reports: