Example of the Waste Water Station Renovation Project of an Automo-bile Parts Park
[Purposes]Taking the waste water station of an automobile parts park as an example,by strength-ening the drainage pipe control of the workshop and reforming the waste water treatment station,the problems of high COD and suspended solids,unstable ammonia nitrogen and total phosphorus,and high risk of exceed-ing the standard are solved.[Methods]The problems of turbidity of drainage,high COD,suspended solids,ammonia nitrogen and total phosphorus were analyzed in detail from the aspects of sedimentation tank struc-ture design,water distribution mode,sand filter structure and water inflow.[Findings]After the completion of the transformation,COD,suspended matter,ammonia nitrogen and total phosphorus were reduced by 81.50%,89.69%,62.35%and 28.51%,which greatly reduced the discharge risk and ensure that the drainage is up to standard.[Conclusions]The inclined tube sedimentation tank can be changed from the horizontal flow into the vertical flow into the central cylinder,so that the sedimentation tank water distribution is uniform;the top of the rectangular crossbeam of the inclined pipe supported by the sedimentation tank is changed to a trap-ezoid,so that the sludge discharge of the inclined pipe is smoother;it is suggested to increase the sand filter tank with backwashing to reduce the suspended solids in the effluent of acid-base phosphorus-containing wastewa-ter;measures like strengthening the supervision of the workshop and strictly controlling the concentration of pol-lutants in the wastewater station should be taken to improve the water treatment effect.
万方数据
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