摘要
采用柱状模拟试验研究煤矸石和粉煤灰不同工艺处理对淋溶水的影响,结果表明:煤矸石淋滤液酸性极强,污染性较大,对照GB3838-2002《地表水环境质量标准》的要求超标严重。添加粉煤灰在一定程度上能够减轻淋滤水的pH值,SO42-,PO43-,Fe污染,煤矸石和粉煤灰均匀混合以及上下分层工艺能够有效地降低煤矸石对周围水环境的污染,为治理矿区酸性水提供了理论依据。
The leaching solution with different treatments using coal wastes and fly ash is studied in pole experiments. The results show that the leaching solution of the coal wastes is related with serious pollution. According to the requirements of GB3838-2002 ＂Surface Water Quality Standard＂, pH value should be much lower. Addition of fly ash can reduce the pollution, such as pH, SO^-, PO3- and Fe concentrations. Mixture of coal wastes and fly ash or in different layers can effectively decrease water pollution, which may serve as a basis for acid sewage control.
出处
《科技导报》
CAS
CSCD
2008年第5期70-73,共4页
Science & Technology Review
基金
国家高技术研究发展计划(863计划)项目(2006AA06Z372)
教育部新世纪优秀人才计划项目(NCET-06-0200)
国家科技支撑计划项目(2006BAC09B03)
关键词
煤矸石
粉煤灰
淋滤液
水污染
coal wastes
fly ash
leaching solution
water pollution
作者简介
冯广达，陕西省杨凌邰城路3号西北农林科技大学资源与环境学院，E-mail：hitler886@yahoo．com；
毕银丽（通讯作者），北京市海淀区学院路丁11号中国矿业大学（北京）资源与安全工程学院．教授，E-mail：byl@cumtb．edu．cn
