uct污水处理工艺(国外英文资料).docVIP

uct污水处理工艺(国外英文资料) Sewage treatment, the Chinese sewage treatment project network! Uct wastewater treatment process The UCT process was developed by the university of Cape Town in South Africa, whose English is Univerdity of Cape Town. UCT process with the traditional A/O process similar to the reaction tank by anaerobic, anoxic and aerobic three parts, its basic principle is raw sewage and phosphorus sludge into the anaerobic reaction pool of phosphorus release and absorption of low molecular weight organic matter; In the hypoxia pool, the organic matter in the water is the source of the carbon, and the nitrates that are brought in by the flow of mixed fluid are used to remove the nitric nitrogen. Then the aeration pool was removed from the hypoxia pool, further removed the BOD, the nitrification reaction and the excess absorption of phosphorus; In the sediment pool, the sludge is separated from the mud, and the phosphor sludge is used to discharge the phosphorus removal system, which is the purpose of biological phosphorus removal. The process flow is as follows: Anaerobic: anaerobic fermentation bacteria convert the biodegradable, biodegradable molecules of large molecular organic matter into VFA into a low-volume fermentation intermediates. The polyphosphates are used to synthesize their own cytoplasm and multiply. Oxygen pool: denitrifying bacteria using in the aerobic zone backflow of nitrate, and organic matrix in sewage denitrification, at the same time, the effect of nitrogen removal. Phosphorus accumulating aerobic pool, at the same time in the use of residue of organic ground substance in sewage, mainly by decomposing the keep in storage inside body of PHB by release of energy to maintain its growth, while excessive intake of dissolved phosphorus in the environment. Nitrifying bacteria convert ammonia nitrogen from sewage into nitrates. UCT process and A2 / O process differed from the tank return sludge to the anaerobic pool rather than return to YanYangC