| 温度、盐度、pH对剩余污泥铜、铅溶出效应的影响分析 |
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| 引用本文： | 高春梅,朱晓芸,储鸣,王春峰,杨红,凤海晨,黄庆.温度、盐度、pH对剩余污泥铜、铅溶出效应的影响分析[J].上海海洋大学学报,2015,24(5):880-885. |
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| 作者姓名： | 高春梅 朱晓芸 储鸣 王春峰 杨红 凤海晨 黄庆 |
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| 作者单位： | 上海海洋大学海洋科学学院,天道教育上海分公司,上海海洋大学海洋科学学院,上海海洋大学海洋科学学院,上海海洋大学海洋科学学院,联行国际货源代理上海有限公司,上海合护安全用品有限公司 |
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| 基金项目： | 上海市教委高校第五期海洋环境工程重点学科项目(J50702) |
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| 摘 要： | 以某污水处理厂脱水污泥为研究对象，初始重金属浓度为：Cu为116.04~316.68mg/kg，Pb为13.13~37.02mg/kg。分析了温度，盐度和pH对剩余污泥铜、铅的溶出效应影响，得出：铅在酸性条件下（pH=6.5）的溶出量(均值0.567mg/L)小于碱性条件(pH=8.5)的溶出量（均值0.641mg/L），但铜却不同（pH=6.5,均值为0.063mg/L；pH=8.5,溶出量均值=0.062mg/L），且铅的总溶出量大于铜的总溶出量；温度对重金属 Cu、 Pb 溶出的影响较为明显(p<0.05)，温度较高重金属越易溶出，且在高温下越快到达平衡浓度；盐度对污泥重金属释放有显著效应(p<0.05)，金属 Cu、Pb 的溶出量随着盐度的增加而升高，并且盐度越大，越快达到平衡浓度。
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| 关 键 词： | 剩余污泥，重金属，溶出 |
| 收稿时间： | 1/4/2015 12:00:00 AM |
| 修稿时间： | 2015/6/18 0:00:00 |
Influence of temperature, salinity and pH on Cu, Pb solubility in excess sludge |
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| GAO Chunmei,ZHU Xiaoyun,CHU Ming,WANG Chunfeng,YANG Hong,FENG Haichen and HUANG Qing.Influence of temperature, salinity and pH on Cu, Pb solubility in excess sludge[J].Journal of Shanghai Ocean University,2015,24(5):880-885. |
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| Authors: | GAO Chunmei ZHU Xiaoyun CHU Ming WANG Chunfeng YANG Hong FENG Haichen and HUANG Qing |
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| Institution: | College of Marine Sciences,Shanghai Ocean University,Shanghai,Naturelaw International Education(Shanghai Branch),College of Marine Sciences,Shanghai Ocean University,Shanghai,College of Marine Sciences,Shanghai Ocean University,Shanghai,College of Marine Sciences,Shanghai Ocean University,Shanghai,U-Freight Limited(Shanghai),Shanghai Hawkhood Protective Equipment Co.LTD |
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| Abstract: | The dewatered sludge samples were collected in one wastewater treatment plant and the content of Cu was 116.04-316.68 mg/kg and Pb was 13.13-37.02 mg/kg. The influence of temperature, salinity and pH on Cu, Pb solubility in excess sludge was researched. It could be obtained that the release amount(average=0.567 mg/L) of Pb in acid conditions(pH=6.5)was less than that(average=0.641 mg/L) in alkaline conditions(pH=8.5),which was different from Cu(0.063>0.061), but the total release amount of Pb was greater. Temperature had obvious effect on Cu, Pb release, the heavy metals were easier to release along with the temperature increase, and at high temperature it could be quicker to reach the equilibrium concentration. Salinity had significant effect on heavy metal release in excess sludge, the release amount of Cu, Pb increased along with the salinity increase, and the equilibrium concentration was sooner to reach at higher salinity. |
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| Keywords: | excess sludge heavy metals solubility Cu Pb |
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