Organics and nutrients removal in combined wastewater by coagulation and flocculation process
混凝工艺去除合流污水中有机物及营养元素

The removal efficiency of inorganics,organics and nutrients of a combined sewage were studied by the coagulation-flocculation process in jar tests.Suspended solid(SS),chemical oxygen demand(COD),total phosphorus(TP) and orthophosphate(PO3-4-P) in the combined wastewater could be effectively removed using flocculants,such as aluminum sulfate(Al2(SO4)3),ferric sulfate(Fe2(SO4)3),polyaluminium chloride(PAC) and polyaluminium-ferric chloride(PAFC).Poly-metal salt flocculants(PAC and PAFC) had more effective rem...