| 磷形态和pH对剩余污泥磷释放的影响 |
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| 引用本文： | 朱晓芸,杨红,高春梅.磷形态和pH对剩余污泥磷释放的影响[J].上海海洋大学学报,2014,23(1):102-107. |
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| 作者姓名： | 朱晓芸 杨红 高春梅 |
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| 作者单位： | 上海海洋大学 海洋科学学院, 上海 201306;上海海洋大学 海洋科学学院, 上海 201306;上海海洋大学 海洋科学学院, 上海 201306 |
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| 基金项目： | 海洋公益性项目 （200905010）；上海市教育委员会重点学科建设项目（J50702）；上海海洋大学研究生科研基金（A-0209-13-0900125） |
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| 摘 要： | 为了探讨pH对污泥中磷的释放行为的影响,采用SMT(欧洲标准测试组织)法对上海三处污水处理厂的剩余污泥中磷的形态进行了分析,并通过室内模拟实验研究了不同pH条件下3种污泥中的磷在海水中的释放行为。结果表明:3种污泥样品的总磷含量各不相同,污泥有机磷含量低,无机磷是主要赋存形态,占TP(总磷)含量的64.42%~83.01%。各形态磷的相关性分析发现,污泥总磷含量主要受NAIP(非磷灰石无机磷)和AP(磷灰石无机磷)影响。室内试验表明,污泥中的磷在酸性、中性和碱性海水环境下均有释放,相比中性条件,酸性和碱性水质更有利于磷的释放;污泥中磷的释放与磷的形态分布有关,但磷释放量大小并不简单取决于总磷和无机磷的含量。
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| 关 键 词： | 剩余污泥 磷形态 pH 磷释放 |
| 收稿时间： | 2013/8/15 0:00:00 |
| 修稿时间： | 2013/11/11 0:00:00 |
The influence of phosphorus form and pH on phosphorus release from sewage sludge |
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| ZHU Xiao-yun,YANG Hong and GAO Chun-mei.The influence of phosphorus form and pH on phosphorus release from sewage sludge[J].Journal of Shanghai Ocean University,2014,23(1):102-107. |
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| Authors: | ZHU Xiao-yun YANG Hong and GAO Chun-mei |
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| Institution: | College of Marine Science, Shanghai Ocean University, Shanghai 201306, China;College of Marine Science, Shanghai Ocean University, Shanghai 201306, China;College of Marine Science, Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | To investigate the influence of phosphorus form and pH on phosphorus release, SMT (Standard Measurements and Testing) method was applied to analyze the phosphorus chemical form in sewage sludge from different wastewater treatment plants. The release behavior of phosphorus from sewage sludge under seawater with different pH values was also investigated in lab. The results showed that: total phosphorus (TP) content of these sludge samples varied. The percentage of organic phosphorus(OP) was low, while the inorganic phosphorus (IP), accounting for 64.42% to 83.01%,was the predominant fraction of total phosphorus(TP).And the most abundant portion of inorganic phosphorus in these samples was the non-apatite inorganic phosphorus (NAIP) fraction. We have found from experiments that the phosphorus in sludge could release under acidic, neutral and alkaline conditions. Compared with neutral condition, acidic and alkaline conditions were more favorable to the release of phosphorus. The distribution of phosphorus chemical forms influenced phosphorus releasing, but does not depend on the content of total phosphorus and inorganic phosphorus simply. |
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| Keywords: | sewage sludge phosphorus form pH P release |
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