污染物质的来源广泛，包括农业、工厂排放物、消费产品、城市河道和污水处理工厂。
The pollutants derive from a wealth of sources, including agriculture, factory discharges, consumer products, urban runoff and wastewater treatment plants.
改善日益恶化的农业生态环境，必须处理好农业面源污染问题。
To perfect the worsening agricultural ecological environment must control the area pollution in agriculture.
针对当前集约化养殖引起的环境污染问题，提出用生物过滤器处理农业臭气。
Aiming at severe entironment pollution question caused by intensive feeding, the use of biofilter is presented.
应用推荐