摘要
分析了硫化铜矿开采过程中酸性矿山废水(AMD)生成和土壤酸化的机理,以及硫化铜矿酸性环境的危害,综述了酸碱中和、硫化物沉淀、表面钝化、微生物、模拟人工湿地等AMD治理方法,以及中和、生物质炭、植物修复、微生物等酸性土壤治理方法.在此基础上,提出可驯化对环境适应性更强的硫酸盐还原菌、制备碱化生物质炭以高效调节酸性土壤、利用硫化铜矿酸性废水制备可反作用于酸性环境的黄钾铁矾保护层,以及将黄钾铁矾保护层、驯化后的硫酸盐还原菌、碱化生物质炭、植物修复法相结合综合治理硫化铜矿酸性环境,以期提升治理效果.
Abstract
The formation of acid mine drainage(AMD)and the mechanism of soil acidification during cop-per sulfide mining were analyzed.The hazards of acidic environment in copper sulfide mine were introduced.The methods of treating AMD by acid alkali neutralization,sulfide precipitation,surface passivation,microorgan-isms and simulated artificial wetlands,and treating acidic soil by neutralization,biochar,phytore-mediation and microorganisms were summarized.On this basis,a variety of comprehensive measures to treat the acidic environment of copper sulfide mine were proposed to improve the treatment effect,such as domestica-ting sulfate reducing bacteria with stronger adaptability to the environment,preparing alkalized biochar to effi-ciently regulate acidic soil,using copper sulfide acidic wastewater to prepare a protective layer of jarosite that could react on acidic environment,and the combination of jarosite protection layer,domesticated sulfate re-ducing bacteria,alkalized biochar and phytoremediation.
基金项目
国家自然科学基金资助项目(51664016)
江西省科技厅重点研发计划基金资助项目(20212BBG73013)
江西铜业股份有限公司德兴铜矿科研基金资助项目(2017-3607-09)
江西铜业股份有限公司城门山铜矿科研基金资助项目(CTYJ2022006)
维普
万方数据