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乙酸盐碳源生物除磷系统的影响因素研究

Study on Influencing Factors of Biological Phosphorus Removal with Sodium Acetate as Carbon Source

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【作者】 刘亚男薛罡于水利赵方波郭思远

【Author】 LIU Ya-nan~1,XUE Gang~1,YU Shui-li~2,ZHAO Fang-bo~2, GUO Si-yuan~2(1.School of Environmental Science & Engineering,Donghua University,Shanghai 200051,China;2.School of Municipal & Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China)

【机构】 东华大学环境科学与工程学院哈尔滨工业大学市政环境工程学院哈尔滨工业大学市政环境工程学院 上海200051上海200051黑龙江哈尔滨150090

【摘要】 以实际污水厂的水质为原型即在COD为限制因素的条件下,选择乙酸钠作碳源,在实验室规模的序批式反应器(SBR)中研究了进水pH与生物除磷的关系。结果表明,在COD为限制因素的条件下,pH值为7.2时的除磷效果最好;COD/P值越小则聚磷菌在污泥系统中所占的比例越大;低COD/P值下的出水磷浓度、污泥的磷含量和厌氧条件下的COD去除率均较高,但去除单位磷所需的COD量较少,且MLVSS/MLSS值也相对较低。

【Abstract】 Under the condition of real wastewater from a wastewater treatment plant and COD limitation,selecting sodium acetate as carbon source,the study on the relationship between influent pH and Biological Phosphorus Removal(BPR) was conducted in the lab-scale Sequencing Batch Reactor(SBR).It is found that the phosphorus removal effect is best at pH 7.2.When COD/P is lower,i.e.under COD-limiting situation,the phosphate accumulating organisms are dominant,and phosphorus concentration in effluent of low-COD/P system is more than that of high-COD/P system,but less COD is required for the same amount of phosphorus removal.At the same time,lower COD/P causes lower MLVSS/MLSS ratio and higher anaerobic COD removal efficiency.

【关键词】 生物除磷乙酸盐SBRpHCOD/P
【Key words】 biological phosphorus removalsodium acetateSBRpHCOD/P
【基金】 霍英东基金优选资助课题(94004);上海市自然科学基金资助项目(04ZR14010);北京市水质科学与水环境恢复工程重点实验室开放基金资助项目
  • 【文献出处】 中国给水排水 ,China Water & Wastewater , 编辑部邮箱 ,2006年13期
  • 【分类号】X703
  • 【被引频次】4
  • 【下载频次】247
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