【优质】某啤酒厂啤酒废水治理设计--优秀毕业设计.doc

Abstract This design is one beer waste water treatment. The degree of the design is in a preliminary phase. The main distinguishing feature of the beer waste water is that it contains the massive organic matters, so it belongs to the high concentration organic waste water, therefore its biochemical oxygen demand is also high. The water which needs to treatment in the beer waste water treatment plant is 3000, regardless of the specified future development. Various target in the raw waste water is: the concentration of BOD is 960mg/L, the concentration of COD is 2500mg/L, the concentration of SS is 500mg/L. For the beer waste waters BOD is high, it could pollute the enviroment if drained before treatment, so it request the beer waste water which drained must be strictly treated to the two effluence standard in the country, which is as following: BOD≤30mg/ L, COD≤100mg/ L, SS≤70mg/ L. After the analysis, the quality of this processing water belongs to the waste water that easy biology degrade and not have the obvious poison, could use two levels of biological treatments to cause the water drained meet the designated standard. First level of processing mainly uses the physical methods, which removes the suspended matter and the inorganic substance in the sewage.Second levels of processing mainly uses the biology methods, consists of UASB of demand oxygen biology methods and SBR of anaerobic oxygen biology methods, which could remove BOD, CODin the waste water. The technological process of this design is: Beer waste water → Screens → The sewage lift pump house → Regulates precipitating tank → Reaction tank of UASB → Tank of SBR →Treatment water The entire technological process have the characteristics of lower investment, good treatment effect, easy technology process，running steady, and consuming lower energy. Keyword: Beer waste water treatment High concentration of organic waste water UASB(Upflow Anaerobic Sludge Blanket)process SBR (Sequencing Bat