| 温度和污泥浓度对碱性条件下剩余污泥水解酸化的影响 |
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| 引用本文： | 苏高强,王淑莹,郑冰玉,彭永臻.温度和污泥浓度对碱性条件下剩余污泥水解酸化的影响[J].环境工程学报,2013,7(4):1231-1236. |
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| 作者姓名： | 苏高强 王淑莹 郑冰玉 彭永臻 |
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| 作者单位： | 北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京市污水脱氮除磷处理与过程控制工程技术研究中心,北京100124 |
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| 基金项目： | 国家自然科学基金资助项目(51178007);北京市教委科技创新平台项目 |
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| 摘 要： | 挥发性脂肪酸(VFAs)是脱氮除磷过程中易于利用的碳源。剩余污泥在碱性条件下发酵能产生大量的VFAs,而温度和污泥浓度是影响剩余污泥发酵的两个重要因素,为此考察了厌氧环境,温度15℃和35℃,pH为10的条件下,剩余污泥挥发性悬浮污泥浓度(VSS为1.708～11.049 g/L)对水解酸化的影响,为实现剩余污泥的资源化提供理论依据。研究得出如下结论:污泥浓度对剩余污泥溶解性化学需氧量(SCOD)溶出率影响不大。低污泥浓度和高污泥浓度均不利于剩余污泥产酸,最佳产酸的污泥浓度为8.540 g/L。各污泥浓度条件下产生的6种挥发性有机酸中乙酸的比例总是最大,且低污泥浓度条件下乙酸的百分含量要高于高污泥浓度条件下。温度对高污泥浓度条件下污泥的最大SCOD溶出量影响较大,而对低污泥浓度条件下污泥最大的产酸量影响较大。无论15℃还是35℃,中等污泥浓度对氨氮的释放量影响不大,35℃条件下污泥浓度对正磷酸盐的释放要比15℃条件下大。
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| 关 键 词： | 污泥浓度 温度 剩余污泥 水解酸化 碱性条件 |
Effect of temperature and sludge concentration on hydrolysis and acidification of waste activated sludge under alkaline condition |
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| Su Gaoqiang,Wang Shuying,Zheng Bingyu and Peng Yongzhen.Effect of temperature and sludge concentration on hydrolysis and acidification of waste activated sludge under alkaline condition[J].Techniques and Equipment for Environmental Pollution Control,2013,7(4):1231-1236. |
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| Authors: | Su Gaoqiang Wang Shuying Zheng Bingyu and Peng Yongzhen |
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| Institution: | Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China;Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China;Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China;Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China |
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| Abstract: | |
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| Keywords: | sludge concentration temperature waste activated sludge hydrolysis and acidification alkaline condition |
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