| 厌氧系统中碱处理对污泥减量的影响 |
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| 引用本文： | 谢敏,欧双慧,刘小波,黄聪,邓玉梅,李美艳.厌氧系统中碱处理对污泥减量的影响[J].环境工程学报,2014,8(4):1637-1640. |
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| 作者姓名： | 谢敏 欧双慧 刘小波 黄聪 邓玉梅 李美艳 |
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| 作者单位： | 1. 长沙理工大学水利工程学院, 长沙 410114;2. 中国科学院生态环境研究中心, 北京 100085;1. 长沙理工大学水利工程学院, 长沙 410114;1. 长沙理工大学水利工程学院, 长沙 410114;1. 长沙理工大学水利工程学院, 长沙 410114;1. 长沙理工大学水利工程学院, 长沙 410114;1. 长沙理工大学水利工程学院, 长沙 410114 |
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| 基金项目： | 国家自然科学基金资助项目（51108043）；湖南省自然科学基金资助项目（12JJ3056）；湖南省教育厅项目（13C1041） |
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| 摘 要： | 碱解预处理污泥和原污泥按一定比例进行混合后,投入厌氧反应器中进行消化,研究其对污泥减量化的影响。结果表明,该处理既可以提高污泥减量率,又能改善污泥厌氧消化性能,提高污泥产气量。当碱处理污泥和原污泥混合比为1∶3时,在混合初期由于稀释作用和水解中和作用,溶液的pH能迅速恢复到中性。SS减少48%,较对照组提高了10%;SCOD减少约80%,较对照组提高20%,而空白对照组因未发生溶胞作用,各参数值均处于较低水平,降解率也维持在较低水平。
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| 关 键 词： | 碱处理 厌氧消化 污泥减量 混合比 |
Effects of alkaline pretreatment on anaerobic digestion system |
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| Xie Min,Ou Shuanghui,Liu Xiaobo,Huang Cong,Deng Yumei and Li Meiyan.Effects of alkaline pretreatment on anaerobic digestion system[J].Techniques and Equipment for Environmental Pollution Control,2014,8(4):1637-1640. |
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| Authors: | Xie Min Ou Shuanghui Liu Xiaobo Huang Cong Deng Yumei and Li Meiyan |
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| Institution: | 1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China;2. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China;1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China;1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China;1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China;1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China |
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| Abstract: | The original and alkaline-treated sludge were mixed with a certain mixing ratio in an anaerobic digestion reactor and the effects of alkaline-treatment on sludge reduction were investigated in this work.The results showed that the alkaline pretreatment could facilitate sludge reduction,improve digestion performance,and enhance biogas generation,simultaneously.For the effect of dilution and hydrolysis-neutralization,the pH of experimental group with the ratio of 1:3 returned to neutral quickly,while the reduction rate of SS was about 48%,compared with the raw sludge group increased by 10%.The reduction rate of SCOD was about 80%,20% higher than the original sludge,the degradation rate of original sludge maintained at a low level since the concentration of other items was low without lysis effect. |
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| Keywords: | alkaline treatment anaerobic digestion sludge reduction mixing ratio |
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