环境工程学报2013，Vol.7Issue(7)：2689-2693,5.
污泥脱水性能的关键影响因素研究
Key influencing factors of sludge dewatering performance
摘要
Abstract
Focusing on the problem of the influencing factors for sludge dewatering performance being unsolved currently,the research studied the effects of the MLVSS/MLSS,proteins/ polysaccharides,content of proteins,content of polysaccharides and the total content of extracellular polymeric substances (EPS) on the sludge dewatering performance,by extracting and examining the EPS under the seven working conditions of the SBR and by adopting the SPSS software analysis.The results indicate that the MLVSS/MLSS,proteins/polysaccharides are the key factors that influence the sludge dewatering performance,the impact models of the water content of the dewatered sludge and the bound-water content of sludge were also established:the water content of the dewatered sludge =0.229 × (MLVSS/MLSS) + 0.023 × (proteins/ polysaccharides) + 0.539,the boundwater content of sludge =2.876 × (MLVSS/MLSS) + 0.335 × (proteins/ polysaccharides)-0.012.After comparing the sludge dewatering performance examined in seven city sewage plants,the data reveal that the relative errors of the water content of the dewatered sludge and the bound-water content of sludge are ± 1％ and ±5％,respectively,having an effective influence on the sludge dewatering performance forecast.关键词
污泥脱水性能/胞外聚合物/MLVSS/MLSS/SPSSKey words
sludge dewatering performance / extracellular polymeric substances / MLVSS/MLSS / SPSS分类
资源环境引用本文复制引用
刘轶,周健,刘杰,杨志,龙熙..污泥脱水性能的关键影响因素研究[J].环境工程学报,2013,7(7):2689-2693,5.基金项目
国家"水体污染控制与治理"科技重大专项(2012ZX07307-002) （2012ZX07307-002）
