It's a effective and valid method to cultivate and enrich denitrifying sludge,by adopting the stage by stage rising method.

A tentative idea of adding media into the aeration tank or using a two-sludge system for phosphorus and nitrogen removal is put forward to promote denitrification in aeration t.

Acetate degradation by denitrifying activated sludge;

Synthesis of cationic and weight molecular flocculant used in sludge dewatering;

Dosage of chitosan flocculant influencing on sludge dewatering performance;

Experimental study on optimum dosage ratio for sludge dewatering in Yangjiapu sewage plant;