Abstract
this design aims at the wastewater disposal system's design which the Tai Lake basin countryside sewage carries on.Designs the water quality is:COD 120mg/L,BOD 60mg/L,SS 100mg/L.In each kind of sewage treatment system,is mature in line with the craft,the movement is stable,the processing effect is good,the investment and the operating cost are low,the operation management simple principle,through to characteristic and so on this basin countryside sewage water volume water quality analyses,refers to other countryside sewage treatment the typical project example,unifies this project the specific request,the design uses the biological contact oxo-process processing craft.The sewage treatment technical process is:Regulating reservoir -> primary sedimentation pond -> contact oxidation pond -> two sedimentation pond -> reservoirs of clean water.The design sewage treatment system has reliable,the operating cost to be low maturely,the processing effect stable merit,is one kind highly effective,the economical sewage treatment craft.The design water leakage water quality is:COD 50mg/L,BOD 10mg/L,SS 10mg/L.The water disposal plant area approximately is 1500m2,about main body construction depth 5m.The total investment approximately is 470,600 Yuan.
key words:Tai Lake basin countryside sewage; Biological contact oxo-process; Processing station;
