Commercial aquaculture relies on the high density stocking of fish and then feeding a high protein food to maximize growth. By having such high stocking density of usually once type of animal and feeding at high rates, the water is often fouled by the excess fish waste.
The waste creates issues with ammonia/nitrite, cyanobacteria blooms, and buildup of anaerobic sludge layer on the pond bottom. Additionally, the high stress caused by pollution often allows for growth of opportunistic pathogenic microbes.
The earliest solution was to flush the ponds with new water, however downstream pollution and costs associated with water changes led farmers to see if the principals of biological water treatment could be used to improve animal health and lower costs.
Aquaculture products work in three distinct ways (some organisms function in more than one manner).
Erik Rumbaugh has been involved in biological waste treatment for over 20 years. He has worked with industrial and municipal wastewater facilities to ensure optimal performance of their treatment systems. He is a founder of Aster Bio (www.asterbio.com) specializing in biological waste treatment.
Click to set custom HTML