| 地下水PRB原位生物修复中一种释氧材料的改进技术及效果分析 |
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| 引用本文： | 张永祥,梁建奎,王然,任仲宇,井琦.地下水PRB原位生物修复中一种释氧材料的改进技术及效果分析[J].环境工程学报,2012,6(11):3910-3914. |
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| 作者姓名： | 张永祥 梁建奎 王然 任仲宇 井琦 |
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| 作者单位： | 1. 北京工业大学建筑工程学院水质科学与水环境恢复工程北京市重点实验室,北京,100124
2. 北京工业大学建筑工程学院水质科学与水环境恢复工程北京市重点实验室,北京100124 北京城市学院城市建设学院,北京100083 |
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| 基金项目： | 国家"水体污染控制与治理"科技重大专项"南水北调中线总干渠水质安全保障关键技术与工程示范课题"(2008ZX07212-003) |
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| 摘 要： | 释氧材料经济有效的释氧是地下水原位生物修复的关键因素。实验通过在释氧材料中加入膨润土、磷酸二氢钾和硫酸铵等,改进释氧材料的性能。柱实验结果显示,该释氧材料释氧速率缓慢,释氧时间长,可以使溶液中DO长期保持在5 mg/L以上;另外,释氧材料中添加的缓冲剂及天然含水层介质对pH值有较好的缓冲作用,可以使pH值达到后续生物修复的要求。
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| 关 键 词： | 释氧材料 pH 可渗透反应格栅 地下水 原位生物修复 |
Application of improving oxygen releasing material in situ polluted groundwater PRB bioremediation |
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| Zhang Yongxiang,Liang Jiankui,Wang Ran,Ren Zhongyu and Jing Qi.Application of improving oxygen releasing material in situ polluted groundwater PRB bioremediation[J].Techniques and Equipment for Environmental Pollution Control,2012,6(11):3910-3914. |
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| Authors: | Zhang Yongxiang Liang Jiankui Wang Ran Ren Zhongyu and Jing Qi |
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| Institution: | 1. Beijing Key Laboratory of Water Quality Science and Water Environmental Restoration Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,China;1. Beijing Key Laboratory of Water Quality Science and Water Environmental Restoration Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,China;2. City Construction Department of Beijing City University, Beijing 100083, China;1. Beijing Key Laboratory of Water Quality Science and Water Environmental Restoration Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,China;1. Beijing Key Laboratory of Water Quality Science and Water Environmental Restoration Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,China;1. Beijing Key Laboratory of Water Quality Science and Water Environmental Restoration Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,China |
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| Abstract: | It is an important factor if the oxygen-releasing material could release oxygen continuously and economically upon contact with water in situ polluted groundwater bioremediation. The experiment was intended for improving property of oxygen-releasing material through adding bentonite,KH2PO4 and (NH4)2SO4 into calcium peroxide (CaO2).The results of the continuous column experiment show that the oxygen-releasing material could decrease O2-releasing rate and lengthen O2-releasing duration. The DO can retain more than 5 mg/L for long time. In addition, KH2PO4, (NH4)2SO4 and the natural aquifer can better buffer pH and meet the need of bioremediation. |
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| Keywords: | O2-releasing material pH permeable reactive barrier groundwater in situ bioremediation |
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