某铬污染场地地下水抽水方案优化
|
摘要
抽水时间间隔是影响污染场地地下水抽出处理效率的重要因素。以某铬污染场地为例,利用数值模型结合加权平均方法,以修复成本最小和抽出效率最高为目标,对抽水方案进行优化模拟。模拟结果显示:间歇性抽水方式平均抽出效率高于持续性抽水方式,间歇时间间隔最佳为10 d;以持续性抽水方式抽出30%污染物后,更替为抽水时间间隔为10 d的间歇性抽水是修复成本最低的抽水方案。该结论可为污染场地地下水抽水方案优化设计提供科学的参考依据。
Pumping time interval is an important factor affecting the efficiency of groundwater pumping and treatment in contaminated sites. Taking a chromium-contaminated site as an example,this paper used a numerical model combined with a weighted average method,to optimize the simulation of the pumping scheme with the objective of minimum cost of remediation and maximum pumping efficiency. The simulation results showed that the average pumping efficiency of the intermittent pumping mode was higher than that of the continuous pumping mode,and the optimal time interval was 10 days. After extracting 30% of the pollutants by continuous pumping,the pumping method was replaced by intermittent pumping at intervals of 10 d,which was the pumping scheme with the lowest cost of remediation. This method can provide a scientific basis for the optimal design of groundwater pumping schemes for contaminated sites.
Pumping time interval is an important factor affecting the efficiency of groundwater pumping and treatment in contaminated sites. Taking a chromium-contaminated site as an example,this paper used a numerical model combined with a weighted average method,to optimize the simulation of the pumping scheme with the objective of minimum cost of remediation and maximum pumping efficiency. The simulation results showed that the average pumping efficiency of the intermittent pumping mode was higher than that of the continuous pumping mode,and the optimal time interval was 10 days. After extracting 30% of the pollutants by continuous pumping,the pumping method was replaced by intermittent pumping at intervals of 10 d,which was the pumping scheme with the lowest cost of remediation. This method can provide a scientific basis for the optimal design of groundwater pumping schemes for contaminated sites.
引文
[1]陈莉娜,滕加泉,尹勇,等.有机氯农药污染场地地下水抽水试验[J].农业环境科学学报,2012,31(6):1223-1229.
[2]蒲敏.污染场地地下水抽出处理技术研究[J].环境工程,2017,35(4):6-10.
[3]刘伟江,井柳新,孙宏亮,等.京津冀地区地下水污染防控指标体系构建及优化[J].环境污染与防治,2016,38(3):103-106.
[4]张艳,白相东,张莹.地下水污染抽出处理技术中抽水井最优布局方案研究[J].防灾科技学院学报,2013,15(2):26-29.
[5]张涛,丁贞玉.土壤及地下水污染修复技术、专利与行业发展分析[J].环境污染与防治,2016,38(7):93-98.
[6]何士华,Ming-kuo LEE.抽水-处理技术治理污染地下水的目标确定和运行监测评述[J].昆明理工大学学报(理工版),2003,28(3):131-134.
[7]鞠晓明.地下水污染场地水力控制优化方案研究[D].北京:中国地质大学(北京),2011.
[8]张艳.污染场地抽出-处理技术影响因素及优化方案研究[D].北京:中国地质大学(北京),2010.
[9]万鹏.污染地下水抽出-处理技术的抽水方案优化研究[D].北京:清华大学,2013:7-8.
[10]吴玉成.治理地下水有机污染抽出处理技术影响因素分析[J].水文地质工程地质,1998(1):30-32.
[11] Keely J F,Boulding J R. Performance evaluations of pump-andtreat remediations[J]. U.S.EPA.,1989,21(2):208-211.
[12] Cohen R M,Vincent A H,Mercer J W,et al. Methods for monitoring pump-and-treat performance[J]. Research Report,1994:102.
[13]白福高,刘明柱,刘伟江,等.潮白河河道地下水人工回灌包气带水分运移模拟[J].环境污染与防治,2016,38(6):88-91.
[14]刘明柱,陈鸿汉,胡丽琴,等.生物降解作用下地下水中TCE、PCE迁移转化的数值模拟研究[J].地学前缘,2006,13(1):155-159.
[15] Kim J W. Optimal pumping time for a pump-and-treat determined from radial convergent tracer tests[J]. Geosciences Journal,2014,18(1):69-80.
[16]李雪梅,邓小文,王祖伟,等.污染因子权重及区域环境质量综合评价分级标准的确定:以土壤重金属污染为例[J].干旱区资源与环境,2010,24(4):97-100.
[17]白相东,张艳,刘智荣,等.某冶炼厂污染场地抽出-处理技术优化方案研究[J].防灾科技学院学报,2012,14(4):23-26.
[2]蒲敏.污染场地地下水抽出处理技术研究[J].环境工程,2017,35(4):6-10.
[3]刘伟江,井柳新,孙宏亮,等.京津冀地区地下水污染防控指标体系构建及优化[J].环境污染与防治,2016,38(3):103-106.
[4]张艳,白相东,张莹.地下水污染抽出处理技术中抽水井最优布局方案研究[J].防灾科技学院学报,2013,15(2):26-29.
[5]张涛,丁贞玉.土壤及地下水污染修复技术、专利与行业发展分析[J].环境污染与防治,2016,38(7):93-98.
[6]何士华,Ming-kuo LEE.抽水-处理技术治理污染地下水的目标确定和运行监测评述[J].昆明理工大学学报(理工版),2003,28(3):131-134.
[7]鞠晓明.地下水污染场地水力控制优化方案研究[D].北京:中国地质大学(北京),2011.
[8]张艳.污染场地抽出-处理技术影响因素及优化方案研究[D].北京:中国地质大学(北京),2010.
[9]万鹏.污染地下水抽出-处理技术的抽水方案优化研究[D].北京:清华大学,2013:7-8.
[10]吴玉成.治理地下水有机污染抽出处理技术影响因素分析[J].水文地质工程地质,1998(1):30-32.
[11] Keely J F,Boulding J R. Performance evaluations of pump-andtreat remediations[J]. U.S.EPA.,1989,21(2):208-211.
[12] Cohen R M,Vincent A H,Mercer J W,et al. Methods for monitoring pump-and-treat performance[J]. Research Report,1994:102.
[13]白福高,刘明柱,刘伟江,等.潮白河河道地下水人工回灌包气带水分运移模拟[J].环境污染与防治,2016,38(6):88-91.
[14]刘明柱,陈鸿汉,胡丽琴,等.生物降解作用下地下水中TCE、PCE迁移转化的数值模拟研究[J].地学前缘,2006,13(1):155-159.
[15] Kim J W. Optimal pumping time for a pump-and-treat determined from radial convergent tracer tests[J]. Geosciences Journal,2014,18(1):69-80.
[16]李雪梅,邓小文,王祖伟,等.污染因子权重及区域环境质量综合评价分级标准的确定:以土壤重金属污染为例[J].干旱区资源与环境,2010,24(4):97-100.
[17]白相东,张艳,刘智荣,等.某冶炼厂污染场地抽出-处理技术优化方案研究[J].防灾科技学院学报,2012,14(4):23-26.