Research Of Wastewater Disposal System For An Elevator Plant

An elevator company O located in City J Economic and Technological Development T Area is a manufactory plant.In order to the further maintenance of ecosystem balance and requirement of local environment protection,besides including regard from company management level,an new wastewater disposal system is recommended and beginning to build up.According to the acceptance criteria after wastewater decontamination fulfilling up to 2nd level which is defined in 《GB8978-1996》,the 150m3/d would be considered as maximum flow.Finally,the city sewerage network is ending.Considering elevator manufactory specialization,after a lot of discussion and particular comparison,the Anaerobic Anoxic Oxic(A2/O)system is the confirmation blue print.This A2/O system is a correspondingly simple process flow,saving some investment of capital construction and operating cost,running stable,qualifying water application,facilitating management,which would be a comprehensively utilization indeed.Looking for novelty,the content of A2/O system is mainly including the anaerobic function,the anoxic function and the oxic function.In the anaerobic function,it could release some Phosphorus and aminate some organics;in the anoxic function,it could remove some nitrogen;in the oxic function,it could get rid of some BOD5,it also could process nitration reaction and absorb some phosphorus.