泥龄对反硝化除磷效能的影响  

Effect of SRT on denitrifying dephosphatation

作　　者：王春丽[1] 马放[2] 刘慧[1] 米海蓉[1] 

机构地区：[1]哈尔滨工程大学建筑工程学院,哈尔滨150001 [2]哈尔滨工业大学市政与环境工程学院,哈尔滨150090

出　　处：《东北农业大学学报》2007年第5期637-640,共4页Journal of Northeast Agricultural University

基　　金：国家自然科学基金;国际重大合作研究项目<污水脱氮除磷新理论;新工艺及过程控制>(50521140075)

摘　　要：在厌氧/缺氧(A/A)SBR反应器中考察了污泥龄对反硝化除磷系统效能的影响。结果表明,泥龄对污水中有机物的降解并无明显影响,进水COD基本上都能降解完全;系统脱氮效能受SRT影响不大,只要系统保持SRT大于多数反硝化菌的时代时间,脱氮率基本在90%以上。除磷效果则对SRT变化较为敏感,SRT过低和过高都不利于系统的稳定运行,当SRT为18 d时是维持污泥浓度和除磷效果的最佳结合点。The effects of biological solids-retention time（SRT） on denitrifying dephosphatation were studied by the anaerobic/anoxic sequencing batch reactor（A/A SBR）. The results showed that the influence of SRT on COD removal was quite limited. The influence of SRT on nitrogen removal was smaller, nitrogen removal ratio always was more than 90% when SRT was longer than generation time; the influence of SRT on phosphorus removal was the biggest, SRT was about 18 d, the reactor could operate stably.

关 键 词：反硝化除磷 厌氧 缺氧SBR 反硝化除磷菌 泥龄 

分 类 号：X703.1[环境科学与工程—环境工程]