不确定性条件下垃圾填埋场地下水污染风险评价模型构建研究  

Construction of Risk Assessment Model for Groundwater Pollution in Landfills under Uncertainty

作　　者：张晓凯 张志飞 王振 Zhang Xiaokai;Zhang Zhifei;Wang Zhen(Hebei Institute of Geological Environment Monitoring,Shijiazhuang 050011,China)

机构地区：[1]河北省地质环境监测院,河北石家庄050011

出　　处：《环境科学与管理》2023年第3期190-194,共5页Environmental Science and Management

摘　　要：在垃圾填埋场地下水污染风险评价中,构建模型仅适合个别地区的评价。为此设计了一种不确定性条件下垃圾填埋场地下水污染风险评价模型。以系统论原理为依据,将评价模型分为三个层次。根据垃圾渗滤液的渗漏特点,与其他的基本评价程序相结合,制定构建评价模型的准备程序。遵循多种原则,在不确定性条件下构建地下水污染风险评价模型。基于知识粒度设计指标权重计算算法,计算各指标的权重值。依据迭置指数法的方法与原理,通过加权求和法实施模型的综合评价。测试模型评价性能,测试结果表明模型能够实现综合性风险评价与分区风险评价。In the risk assessment of groundwater pollution in landfills,the model is only suitable for the assessment of individual areas.Therefore,a risk assessment model of groundwater pollution in landfill under uncertainty is designed.Based on the principle of system theory,the evaluation model is divided into three levels.According to the leakage characteristics of landfill leachate,the preparation procedure for constructing the evaluation model is formulated by combining with other basic evaluation procedures.Following a variety of principles,a groundwater pollution risk assessment model was constructed under uncertain conditions.The index weight calculation algorithm is designed based on the knowledge granularity,and the weight value of each index is calculated.According to the method and principle of the overlapping index method,the comprehensive evaluation of the model is implemented by the weighted sum method.The test model evaluates the performance,and the test results show that the model can realize comprehensive risk evaluation and regional risk evaluation.

关 键 词：垃圾填埋场 地下水污染 废物类型 知识粒度 风险评价模型 

分 类 号：X820.4[环境科学与工程—环境工程]