SBR法对生活污水除磷效果的研究.pdfVIP

安徽农业大学学报，2008，35(2)：280—283 Journal of Anhui Ag6cultural University SBR法对生活污水除磷效 果的研究 梁越敢，梁 睿 (安徽农业大学资源与环境学院，合肥230036) 摘 要：控制生活污水中磷的排放，对防治水体富营养化至关重要。以SBR研究生活污水的除磷特性，探讨生 活污水除磷的最佳反应时间和有机负荷对除磷的影响。结果表明，SBR对生活污水除磷的最佳反应时间是厌氧 2．5 h、好氧3 h，此时COD和TP的去除率达到85，8％和96．0％；出水磷的浓度要达到城镇污水处理厂污染物排放 一 级B标准，有机物负荷F／M必须大于或等于0．16 kg·kg (COD／MISS．d)；当F／M小于0．16 kg·kg (COD／ MLSS．d)，除磷效率随着有机负荷增加而迅速提高，并且释磷量与吸磷量呈Y=2．056X+6．654 2(R=0．999 5)的 正线性关系。 关键词：生活污水；生物除磷；SBR；最佳反应时间；有机负荷 中图分类号：X505 文献标识码：A 文章编号：1672—352X(2008)02-0280-04 Biological phosphorus removal on sewage by SBR LIANG Yue—gan，LIANG Rui (School of Resource and Environment，Anhui A cuhurM University，Hefei 230036) Abstract：The discharge of phosphorus in sewage was an important reason that causes the eutrophication．When SBR process was used to study phosphorus removal of the simulative sewage，reacting time and affecting factors on organic loading were analyzed．The results showed that the optimal reaction time of SBR process was 2．5 hours an— aerobic and 3 hours aerobic reaction．and the 96．0％ of phosphorus and 85．8％ of chemical oxygen demand (COD)removal was achieved at the same time，and that when the organic loading is under 0．1 6 kg·kg (COD／ MLSS．d)，the organic loading affected much the removal rate of phosphorus，and furthermore，the amount of P—re— lease and the amount of P—uptake fit positive linear equation Y=2．056X+6．654 2(where X=P—release，Y=P— uptake．correlation coefficient R =0．999 5)and that when the phosphorus concentration of effluent water need a_ chieve the first level B discharge standard of the municipal wastewater treatment plant，the organic loading must be over 0．16 kg·kg (COD／MLSS．d)． Key words：sewage；biological phosphorus removal；SBR；optimal reacting time，organic loadi