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The Application Research Of Engineering Bacteria In Treatment Of Municipal Sewage

Posted on:2011-06-27Degree:MasterType:Thesis
Country:ChinaCandidate:Y ChengFull Text:PDF
GTID:2121360305462445Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
As years go by, environmental pollution and water pollution have become more polluted. The standard of treatment of municipal sewage is getting stricter every day. In the 80th of last century, there ware a lot of wastewater treatment plant be built., some of them used traditional activated sludge processes. The traditional activated sludge processes is good at CODCr, BOD5 and SS treatment. In TP and NH3-N treatment, the traditional activated sludge processes has not really effective. For this reason, they will be dismantled. Per a small pilot test, be using the existing engineering bacteria of mature:To use the bacteria of HSB in Taiwan and the United States LLMO bacteria to compared the traditional activated sludge process test. Through experimental and test data show that be using engineered bacteria can enhance the capacity which do not need change the structure of traditional activated sludge process and equipment, also the CODCr contrast can increase the 10%. And ammonia can be removed effectively. But to be using engineering bacteria can not remove phosphorus. Chemical precipitation of phosphorus removal methods still need to be used.Under the transformation, the system is stabilize。The HSB bacteria is stabilize all through the existing。There is no sludge bulking。There are many votricella in the system。In the parallel system the sludge is loose and there are a few votricella in the system...
Keywords/Search Tags:engineering bacteria, traditional activated sludge process, remove nitrogen, phosphorous removal, rebuild
PDF Full Text Request
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