[1]王锋,董文艺,蔡倩,等.CaO2联合H2O2原位修复污染底泥现场试验研究[J].中国给水排水,2021,37(19):67-71.
　WANG Feng,DONG Wen-yi,CAI Qian,et al.In-situ Remediation of Contaminated Sediment by CaO2 Combined with H2O2[J].China Water & Wastewater,2021,37(19):67-71.
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CaO2联合H2O2原位修复污染底泥现场试验研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第19期 页码: 67-71 栏目: 出版日期: 2021-10-01
Title:
In-situ Remediation of Contaminated Sediment by CaO2 Combined with H2O2
作者:
王锋1，董文艺1,2，蔡倩3，王宏杰1,2，赵玥1，黄杰1
(1.哈尔滨工业大学<深圳>土木与环境工程学院，广东深圳518055；2.城市水资源与水环境国家重点实验室，黑龙江哈尔滨150090；3.深圳市水务<集团>有限公司，广东深圳518000)
Author(s):
WANG Feng1，DONG Wen-yi1,2，CAI Qian3，WANG Hong-jie1,2，ZHAO Yue1，HUANG Jie1
(1. School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055， China； 2. State Key Laboratory of Urban Water Resource and Environment, Harbin 150090， China; 3. Shenzhen Water Co. Ltd., Shenzhen 518000， China)
关键词:
污染底泥; CaO2联合H2O2; 原位修复; 经济性分析
Keywords:
ontaminated sediment; CaO2 combined with H2O2; in-situ remediation; economic analysis
摘要:
在深圳市某污染河道进行现场试验，采用CaO2联合H2O2原位化学方法修复污染底泥，考察了该方法对底泥理化性质及污染物去除效果的影响，并进行了经济性分析。现场试验结果表明,CaO2联合H2O2原位修复河道污染底泥效果显著，底泥颜色迅速由黑色转为土黄色，氧化还原电位从-160 mV提高至90 mV左右；底泥中酸可挥发性硫化物去除率可达99%以上，总有机碳去除率可达24.2%左右；同时1 kg干泥中的总氮含量下降约400 mg，总磷含量无明显变化。经济性分析表明，采用CaO2联合H2O2原位修复河道污染底泥成本约为33.4 元/m2，比底泥疏浚方法更加经济。
Abstract:
The contaminated sediment from a contaminated river in Shenzhen was remedied in-situ by a chemical method of CaO2 combined with H2O2. The effects of the method on the sediment physicochemical properties and pollutant removal efficiency were investigated, and the economic feasibility was analyzed. The in-situ remediation method of CaO2 combined with H2O2 had a significant effect on the contaminated sediment. The color of the sediment rapidly changed from black to yellow, and the oxidation reduction potential increased from -160 mV to 90 mV. The removal efficiency of the acid volatile sulfide in the sediment was more than 99%, and that of the total organic carbon was about 24.2%. Meanwhile, the total nitrogen in 1 kg absolute dry sediment decreased by approximately 400 mg, and total phosphorous was no significant change, respectively. The economic analysis showed that the cost of the in-situ remediation of the contaminated river sediment by CaO2 combined with H2O2 was approximately 33.4 yuan/m2 and was more economical than the dredging technology.
更新日期/Last Update: 2021-10-01