国产69久久精品成人看,天天做天天爱天天综合网2021,亚洲国产婷婷香蕉久久久久久,欧美性xxxxx极品娇小

Solutions:

Livestock and poultry breeding wastewater is mainly from animals manure and house washing,it belongs to high-pollution wastewater.And the key of wastewater treatment is how to remove the ‘three high’(high COD,high SS,high NH₃-N) in water.

According to the characteristics of wastewater,we provide three solutions:(1) Comprehensive utilization of energy,the purpose of this solution is to get the maximum economic benefits.Through anaerobic fermentation to make full use of biogas,biogas residue and biogas fluid, biogas is used for power generation and recycled back to farm,biogas residue and biogas fluid are good organic fertilizer; (2)Energy-saving and emission-reduction,the solution give priority to energy-saving and emission-reduction,and economic benefit is complementary.Through pretreatment and improved biological treatment to remove the SS, COD and NH₃-N of wastewater,and make the wastewater achieve the standard of direct emission.(3)Wastewater recycling,in view of the long breeding cycle and intermittent emission characteristic,we choose the following craft:‘pretreatment+comprehensive treatment+ disinfection’,effluent can be recycled for animal house washing. 

Energy use:

Energy use + energy-saving emission reduction: