Aquaculture wastewater contains a large amount of organic matter, such as cellulose, starch, sugars, fat and protein, etc.; it also often contains pathogens, viruses and parasite eggs; inorganic salts such as chlorides, sulfates, phosphates, bicarbonates and sodium, potassium, calcium, magnesium, etc. The general characteristics are high nitrogen, sulfur and phosphorus content, and under the action of anaerobic bacteria, it is easy to produce odorous substances. The sewage is now treated, and the effluent water quality indicators are required to meet the standards for discharge.
◆ Treatment process: flotation machine + MBR membrane + AO process + disinfection
◆ Treatment water volume: 3-8000m³/d
◆ Treatment standard: pretreatment/municipal pipe use/river discharge/irrigation/level A standard, etc.