Piggery Farm Wastewater Treatment Plant MBR filtration скачать в хорошем качестве

Piggery Farm Wastewater Treatment Plant MBR filtration

The Characteristics of wastewater from pig farms and new treatment MBR technologies Water consumption: 15 to 60 l/pig/day.night (Survey results of pig farms with scale of more than 1000 pigs), Average amount of wastewater: 25 l/pig. Manure amounts generated by market hogs is estimated to be 2.7 kg/pig/day, which is not separated but discharged with cleaning water into biogas tank. Most hog farms do not carry out separate collection and treatment of solid wastes. Pig manure, residual food, urine and cleaning water are treated by biogas tanks. Concentration of pollutants in wastewater is very high: COD ~ 6000mg/l, Amonia ~1200mg/l Characteristics of pig farming wastewater vary significantly depending on farming methods and facility management (such as whether solid waste and wastewater should be separated or not), specific conditions of each location. These conditions have significant impacts on treatment scale, and result in difficult and expensive maintenance of treatment system. Currently, there are many livestock waste treatment technologies applied in the world including manure composting, biogas technology, biological agents, bio-ponds with MBR technology, etc. The most optimum livestock waste treatment model is biogas system which controls odour, reduces pollutant content contained in wastewater, and utilize biogas for fuel.