ao一体式baf除磷性能分析word格式论文.docxVIP

mglL、PAC 投量在 65mg/L 左右时 ，可以保证出7.1 TP0.5mglL 达到城镇污水处理厂污染物排放标准 ( GB 18918→2002 ) 的一…级 A 伴放标准。 良好的水动力条件是减少 PAC 投量和保证出水 TP 达标排放的前提件，化学 除磷成本约为 0.20-0.25 元1m3 ，出污水处理广运行成本 的 30%左右。关键词 : A10 一体式 BAF ，生物除磷，化学除磷 ，PACll l?〉AbstractWith the rapid development of our economy，the continued growth of the sewage and water environmeot pollution is more serious. 10 order to effectively control the increasingly serious of nitrogcn ， phosphorus pollution andeutrophication ，caused by China in July 1，2003 implementation of the urbansewage treatment plants standards for pollulants discharge (2002)，GB18918 - to towns sewage effluent of nitrogen ，phosphorus index put forward stricter requirements . This standard，when sewage eff1uent introducing dilution ability of smaller Jakes as urban landscape water and general back water such use，or out of the basin water drainage to focus when the executive level standard ，are A standard，namely NH 3-N 5mg/L，TP 0.5 mg/L At present our country urban wastewater lrealment out of the water to TP secοndary standard ，we need Aachieve A level of depth processing auxiJiary chemical follow-up phosphorus.Taiyuan econom ic development zοne sewage treatment plant construction started i n 2007，with the tìrst 20000m3/d desígn dimensions for acceptance of taiyuan city，the economic and technological deveJopment zones and industrial wastewater and sewage，industrial wastewater 70% of biological wastewater for 30%. Design eff1uent is executive level A standard. USES ít was introducedfrom abroad AlO (anoxia - good oxygen) integral BAF (bioJogicaJ aerated filters) process.The author June 2009 to 20 10 during August ofs巳wage treatmenl pJant ，themain during phase 1 project running water quaJity indexes were monitored andIVanalyzed ，in order to fill BODs，pH value，DO，the nitrate，gas backflow liquidwater hydraulic loading for inf1l1ence slIch as ratio of biological phosphorus removal ，study the main factors of biological phosphorus removal inf1uen