低温活性污泥 EPS 特性及其对污泥沉降性能影响试验研究 |
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引用本文: | 张海罡,边德军,艾胜书,万立国,田曦,蓝君. 低温活性污泥 EPS 特性及其对污泥沉降性能影响试验研究[J]. 长春工程学院学报(自然科学版), 2015, 0(1): 88-91. DOI: 10.3969/j.issn.1009-8984.2015.01.024 |
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作者姓名: | 张海罡 边德军 艾胜书 万立国 田曦 蓝君 |
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作者单位: | 1. 长春工程学院,长春,130012;2. 长春工程学院,长春 130012; 吉林省城市污水处理重点实验室,长春 130012 |
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基金项目: | 国家自然科学基金项目(51078067)吉林省科技发展计划项目 |
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摘 要: | 以长春市某污水处理厂初沉池出水为原水在实验室进行了低温污水处理模拟试验,研究了低温活性污泥 EPS 特性及其对污泥沉降性能的影响。试验温度控制在15℃、13℃、11℃、9℃、7℃、5℃、3℃,7个温度下,在处理效果稳定的条件下,检测分析了活性污泥中胞外聚合物(EPS)、沉淀性能,研究了其变化规律并探讨了相关性。研究表明活性污泥中 EPS 的含量随温度的降低而减少,而 EPS 中的多糖含量则随之升高,导致活性污泥的沉降性能也随温度降低而变差。
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关 键 词: | 城市污水处理 低温 胞外聚合物 多糖 沉降性能 |
Research on the test of active sludge EPS characters and affects to sludge settling performance in low temperature |
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Affiliation: | ZHANG Hai-gang;Changchun Institute of Technology; |
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Abstract: | Using raw water from a sewage disposal plant in Changchun as the subject,the test simulates sewage treatment in cold condition and studies the character of extracellular polymeric substances (EPS) and the sludge settling performance of the sludge.The test temperature was set at seven different degrees:15 ℃,13 ℃,11 ℃,9 ℃,7 ℃,5 ℃ and 3 ℃.The test analyzes the character of EPS and the settling per-formance of the sludge in process-stabilized environment,researches the changing laws and discusses the relationship between the factors.The result indicates that EPS in the sludge decreases as temperature drops,but polysaccharides in EPS increases,which causes the decrease in the settling performance of the sludge. |
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Keywords: | municipal sewage treatment low temperature extracellular polymeric substances polysaccha-ride settling performance |
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