%0 Journal Article
%T Simulation on Contamination Forecast and Control of Groundwater in a Certain Hazardous Waste Landfill<br>某危险废物填埋场地下水污染预测及控制模拟
%A MA Zhi-fei
%A AN D
%A JIANG Yong-hai
%A XI Bei-dou
%A LI Ding-long
%A ZHANG Jin-bao
%A YANG Yu
%A <br>马志飞
%A 安达
%A 姜永海
%A 席北斗
%A 李定龙
%A 张进保
%A 杨昱
%J 环境科学
%D 2012
%I 
%X On the basis of site investigation and data collection of a certain hazardous waste landfill, the groundwater flow and solute transport coupled models were established by applying Visual Modflow software, which was used to conduct a numerical simulation that forecast the transport process of Cr6+ in groundwater and the effects of three control measures(ground-harden, leakage-proof barriers and drainage ditches) of contaminants transport after leachate leakage happened in impermeable layer of the landfill. The results show that the contamination plume of Cr6+ transports with groundwater flow direction, the contamination rang would reach the pool's boundary in 10 years, and the distance of contamination transport is 1450 m. But the diffusion range of contamination plume would not be obviously expanded between 10 and 20 years. While the ground is hardened, the contamination plume would not reach the pool's boundary in 20 years. When the leakage-proof barrier is set in the bottom of water table aquifer, the concentration of Cr6+ is higher than that the leakage-proof barrier is unset, but the result is just opposite when setting the leakage-proof barrier in the bottom of underlying aquifer. The range of contamination plume is effectively controlled by setting drainage ditches that water discharge is 2642 m3·d-1, which makes the monitoring wells would not be contaminated in 20 years. Moreover, combining the ground-harden with drainage ditches can get the best effect in controlling contaminants diffusion, and meanwhile, the drainage ditches' daily discharge is reduced to 1878 m3·d-1. Therefore, it is suggested that the control measure combining the ground-harden with drainage ditches should apply to prevent contamination diffusion in groundwater when leachate leakage have happened in impermeable layer of the landfill.
%K Visual Modflow
%K landfill
%K groundwater
%K transport simulation
%K forecast
%K contamination control<br>Visual
%K Modflow
%K 填埋场
%K 地下水
%K 运移模拟
%K 预测
%K 污染控制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=4189763B19B8AD45847DDEBD459D26D6&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=CA4FD0336C81A37A&sid=0401E2DB1F51F8DE&eid=09ABD5535D9B6D45&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=21