biological purification meaning in English

生物防治
生物净化

Advances in research of biological purification of eutrophic water body
富营养化水体生物净化效应的研究进展
Excel has developed the earth smile based on the principles of biological purification , with the focus on making use of the abilities of soil bacteria that are abundant throughout the natural world to decompose organic matter effectively and rapidly under certain conditions
业务用分解型厨房垃圾处理机earth smile earth smile是以在自然界繁殖的土壤菌群在一定条件下有效且短时间内分解能力为出发点而开发的产品。
This paper summarizes the peculiarities and application of biological purification techniques commonly used by our and foreign cities , and indicates shortage and development foreground of the techniques , which will provide reference for treatment of municipal polluted surface water bodies
本文列举了国内外城市污染水体常用的生物净化技术的特点及应用情况，指出了各种生物净化技术在实际应用中的不足和发展前景，为我国城市水体的治理提供参考。