Biologicalpretreatment technology is an economic and efficient method to remove ammonia - nitrogen in micro - polluted raw water.
生物预处理是去除微污染源水中氨氮的一种经济有效的方法。
2
So the biodegradability of the raw water should be examined at the planning stage of a raw water biologicalpretreatment engineering.
在规划生物预处理工程以前，应先检测原水的可生物降解性。
3
The physical, chemical and biologicalpretreatment, enzyme saccharification, alcohol fermentation technology and research development were stated in this paper.