The results show that in-depth treatment process have good removal effect for the COD, BOD, total phosphorus, ammonia nitrogen, suspended particulate, turbidity, OIL and total iron of waste water.

结果表明：深度处理工艺对源污水中COD、BOD、总磷、氨氮、悬浮物、浊度、OIL、总铁等均有很好的去除效果。

youdao

Prolonging properly anaerobic treatment time and increasing aeration rate of nitrogen can improve anaerobic environment and the activity of sludge, increasing the removal rate of phosphorus.

适当延长厌氧处理时间和适当增大厌氧过程曝气速率可以改善厌氧环境及活性污泥性能，提高磷的去除率。

youdao

Phosphate in wastewater is one of the main causes of eutrophication, and biological phosphorus removal from wastewater is a new wastewater treatment technology.

废水中过量磷酸盐是引起水体富营养化的主要原因之一，生物除磷是一项新型的水处理技术。

youdao