| pH对混合污泥水解酸化的影响 |
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| 引用本文： | 苏高强,汪传新,郑冰玉,彭永臻.pH对混合污泥水解酸化的影响[J].环境工程学报,2012,6(12):4257-4262. |
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| 作者姓名： | 苏高强 汪传新 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);国家高技术研究发展计划(863)项目(2011AA060903-02) |
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| 摘 要： | pH对剩余污泥和初沉污泥水解酸化的影响已有报道,但pH对混合污泥水解酸化的影响尚鲜见报道。为此对厌氧环境,(20±1)℃,pH=4～11以及不控制pH条件下混合污泥的水解酸化特征进行了研究。研究发现:对pH调控有利于污泥SCOD的溶出,在较强的碱性条件下污泥溶出的SCOD要大于其他条件下的,特别是pH=10和11条件下污泥溶出的SCOD要远高于其他条件下。碱性环境和酸性环境以及中性环境相比更有利于混合污泥产酸,最佳产酸pH条件为pH=10。在酸性和极端碱性条件下均有利于混合污泥中氨氮和磷的释放。碱性环境利于挥发性悬浮固体(VSS)的去除,但不利于总悬浮固体(TSS)的去除。在不同pH条件下将混合污泥的发酵特征和剩余污泥和初沉污泥发酵特征比较,发现3种污泥水解和产酸均在碱性条件下最好,且在20～22℃的条件下,产酸量均在pH=10的条件下达到最大。
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| 关 键 词： | 混合污泥 厌氧发酵 pH调节 水解产酸 挥发性脂肪酸 |
Effect of pH on hydrolysis and acidification of mixed sludge |
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| Su Gaoqiang,Wang Chuanxin,Zheng Bingyu and Peng Yongzhen.Effect of pH on hydrolysis and acidification of mixed sludge[J].Techniques and Equipment for Environmental Pollution Control,2012,6(12):4257-4262. |
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| Authors: | Su Gaoqiang Wang Chuanxin 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: | mixed sludge anaerobic fermentation pH controlled hydrolysis and acidification VFA |
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