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| 活性污泥胞外聚合物提取方法优化 | |
| 引用本文： | 段亮,夏四清,宋永会,刘雪瑜,Slawomir W. Hermanowicz.活性污泥胞外聚合物提取方法优化[J].环境工程学报,2010,4(1):63-66. |
| 作者姓名： | 段亮 夏四清 宋永会 刘雪瑜 Slawomir W. Hermanowicz |
| 作者单位： | 1. 同济大学环境科学与工程学院污染控制与资源化研究国家重点实验审,上海,200092;中国环境科学研究院城市水环境科技创新基地,北京,100012 2. 同济大学环境科学与工程学院污染控制与资源化研究国家重点实验审,上海,200092 3. 中国环境科学研究院城市水环境科技创新基地,北京,100012 |
| 基金项目： | 国家水体污染控制与治理科技重大专项“辽河流域水污染综合治理技术集成与工程示范项目”（2008ZX07208001，003） |
| 摘 要： | 试验对比了不同离子交换树脂(CER)含量和pH条件下胞外聚合物(EPS)的提取效果差异。结果表明,EPS各组分提取浓度均随离子交换树脂用量增加而增加,但各组分趋势不同。TOC的最佳树脂剂量为100 g CER/g VSS,而蛋白质、多糖和DNA的最佳树脂剂量约为70 g CER/g VSS。pH值对TOC、DNA和多糖的提取浓度影响较小,但对蛋白质影响比较大。各提取条件下,EPS各组分提取浓度随时间的变化过程可以分为平稳增长期、快速增长期及稳定期。 |
| 关 键 词： | 胞外聚合物 阳离子交换树脂 提取方法 树脂剂量 pH |
Optimization of extracellular polymeric substance extraction method |
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| Duan Liang,Xia Siqing,Song Yonghui,Liu Xueyu and Slawomir W. Hermanowicz.Optimization of extracellular polymeric substance extraction method[J].Techniques and Equipment for Environmental Pollution Control,2010,4(1):63-66. | |
| Authors: | Duan Liang Xia Siqing Song Yonghui Liu Xueyu and Slawomir W Hermanowicz |
| Institution: | 1;2;1.State Key Laboratory of Pollution Control and Resource Reuse;Tongji University;Shanghai 200092;China;2.Chinese Research Academy of Environmental Sciences;Beijing 100021;3.Department of Civil and Environmental Engineering;University of California;Berkeley;CA;94720-1710;USA |
| Abstract: | Different doses of cation exchange resin (CER) and different pH sludge solution were used to optimize the extraction efficiency of extracellular polymeric substances (EPS). The results showed that EPS extract concentration increased as CER dose increased, but there was different tendency in different components of EPS. The best CER dose for TOC was 100 g CER/g VSS. However, the best CER dose for protein, carbohydrate and DNA was 70 g CER/g VSS. It was clear that pH value had less effect on TOC, carbohydrate and DNA, but had more influence on protein. EPS extraction process can be separated as three stages: flat increased stage, rapid increased stage and stabilized stage. |
| Keywords: | EPS CER extraction method dose of CER pH |
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