By pre aeration in tanyard wastewater, the effect of primary settling improves obviously.

制革污水采用预曝气处后，可大大提高初沉池沉淀效果。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践,井曝气生化处技术处环氧化污水是行之有效的。

The experimentation inspected the infection of hydraulic load, organic load, ammonic nitrogen load, the ratio of gas and water, the height of filling to removal efficiency of COD and ammonic nitrogen.

本试验以自配生活污水为试验用水,考察了水力负荷、进水有机负荷和氨氮负荷、气水比、填料层高度对曝气生物滤池处COD和氨氮效果的影响。