摘要
为了解污泥基充填体充填至采空区后对地下水环境及周边水质的影响,进行了有毒有害物质浸出试验,选取了4个一般化学指标和6个毒性离子指标,采用和谐度评价法对浸出水样的水质进行评价,结合健康风险评价模型评估了浸出水样的健康风险。结果表明:污泥基充填体浸出水样总体符合Ⅲ类水质标准,部分指标严重超标,其中pH超出Ⅴ类水质标准,浊度略超出Ⅲ类水质标准;重金属年均致癌风险值为4.379×10^(-5)~9.414×10^(-5),介于USEPA、荷兰建设和环境部规定的最大可接受风险值(1×10^(-4)~1×10^(-6))之间,重金属年均非致癌风险值为3.916×10^(-9)~8.706×10^(-9),达到荷兰建设和环境部的可忽略风险水平(1×10^(-8))。为保证地下水环境的水质安全,应加强超标项目和健康危害风险较大指标的监测和治理。
In order to understand the influence of sludge-based filling body on groundwater environment and the surrounding water after filling into goaf,the poisonous and harmful material leaching test were carried out.Four general chemical indexes and six toxic ion indicators were selected,and the harmonious degree evaluation method was adopted to evaluate the water quality of leaching water samples.Combined with the health risk assessment model,the health risks of leaching water samples were evaluated.The results showed that the leached water samples from sludge-based fillings generally met the class Ⅲ water quality standard,and some indexes exceeded the standard seriously,such as pH value exceeding the Class Ⅴ and turbidity slightly exceeding the class Ⅲ.The annual carcinogenic risk value of heavy metals was between 4.379×10^(-5)~9.414×10^(-5),which was within the maximum acceptable risk value(1×10^(-4)~1×10^(-6))stipulated by USEPA,the Dutch Construction and Environment Ministry.The annual non-carcinogenic risk value of heavy metals was between 3.916×10^(-9)~8.706×10^(-9),which reached the negligible risk level stipulated by the Dutch Construction and Environment Ministry(1×10^(-8)).In order to ensure the water quality safety of groundwater environment,it was necessary to strengthen the monitoring and management of the items exceeding the standard and indexes with high risk of health hazards.
作者
刘音
马吉燕
程兴娜
陈森
杜玉娇
王婷婷
LIU Yin;MA Jiyan;CHENG Xingna;CHEN Sen;DU Yujiao;WANG Tingting(School of Safety and Environmental Engineering,Shandong University of Science and Technology,Qingdao 266590,China;National Experimental Teaching Demonstration Center for Mining Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《能源环境保护》
2022年第3期97-102,共6页
Energy Environmental Protection
基金
山东省自然科学基金(ZR2021ME138)
国家创新创业计划项目(202110424163)。
关键词
污泥基充填体
浸出试验
和谐度评价
健康风险
地下水环境
Sludge-based filling body
Leaching test
Harmony evaluation
Health risks
Groundwater environment
