不同BOD/N对活性污泥沉降性能的影响  

Effect of Different BOD/N on Property of Activated Sludge Settling

作　　者：孙天然[1] 成杰民[1] 王汉卫[1] 

机构地区：[1]山东师范大学人口.资源与环境学院,山东济南250014

出　　处：《环境科学与技术》2009年第1期166-169,共4页Environmental Science & Technology

基　　金：山东省环境保护科技项目资助(200408)

摘　　要：文章采用SBR法处理生活污水,研究了不同N元素含量(以BOD/N记)对活性污泥沉降性的影响。结果表明,在进水BOD/N为100/5和100/3的条件下,污泥沉降性良好;在进水BOD/N为100/1时,发生轻微由黏性菌胶团过量生长引起的非丝状菌膨胀。实验中还研究了在不同N元素含量时污泥微生物对COD去除率的影响以及污泥浓度(MLSS)的变化。Effect of different nitrogen content on experiments carried on a sequencing batch reactor settling property of activated sludge was investigated specially in some （SBR） fed with domestic wastewater. Experimental results showed that sludge settled properly at an influent value of BOD/N 100/5 and 100/3. When value of BOD/N was 100/1, non-filamentous activated sludge bulking caused by an excessive growth of viscous zoogloea with high moisture content occurred lightly. Effect of various nitrogen contents on COD removal efficiency and changes of mixed liquor suspended solids were studied in the experiment.

关 键 词：污泥沉降性 氮元素 BOD/N SBR 

分 类 号：X703[环境科学与工程—环境工程]