| 改性塘泥处理含Pb2+废水的研究 |
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| 引用本文： | 张英武,陈楷翰,孙头辉.改性塘泥处理含Pb2+废水的研究[J].漳州师范学院学报,2005,18(3):89-93. |
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| 作者姓名： | 张英武 陈楷翰 孙头辉 |
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| 作者单位： | 泉州师范学院化学系,福建泉州362000 |
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| 摘 要： | 本文采用池塘底泥为原料,经H2SO4和H2O2氧化处理,在不同条件下用于去除废水中的重金属离子.研究结果表明:Pb2 的初始浓度为50mg/L,用土量10g/L,pH=6.0,吸附时间为60min,该改性塘泥对含Pb2 废水的去除率可达99.8%.处理后残留液中的Pb2 用双硫腙萃取,分光光度法测定,测出残留液Pb2 浓度为72μg/L远低于国家规定的一级排放标准.
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| 关 键 词： | 改性塘泥 含Pb2 废水 去除率 机理 |
| 文章编号： | 1008-7826（2005）03-0089-05 |
| 收稿时间： | 2005-03-15 |
| 修稿时间： | 2005年3月15日 |
The Study on the treatment of lead-bearing wastewater by modified pond mire |
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| ZHANG Ying-wu,CHEN Kai-han,SUN Tou-hui.The Study on the treatment of lead-bearing wastewater by modified pond mire[J].Journal of ZhangZhou Teachers College(Natural Science),2005,18(3):89-93. |
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| Authors: | ZHANG Ying-wu CHEN Kai-han SUN Tou-hui |
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| Abstract: | Pond sludge was used as basic materials, oxidized by H2SO4 and H2O2, which was used to get rid of heavy metal ion(Pb2+) in the waste water. The results show that when the initial concentration of Pb2+ is 50 mg/ L ,the removal rate of Pb2+ by modified pond mire can reach 99.8% under the following conditions: the dosage of modified pond mire is 10g/L ,pH is 6.0 ,the adsorption time is 60 min.Dithionze extraction with spectrophotometric method was used to measure the residual Pb2+ in the liquid.The residual concentration of Pb2+ is less than the first national effluent concentration limit after the treatment by modified pond mire. |
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| Keywords: | Modified pond mire Lead-bearing wastewater The removal rate Mechanism |
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