城市污水处理环境效益量化分析  

Environmental benefits analysis of municipal wastewater treatment

作　　者：张琼华[1] 王晓昌[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,西北水资源与环境生态教育部重点实验室,西安710055

出　　处：《环境工程学报》2009年第5期861-863,共3页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金重大国际合作项目(50621140001)

摘　　要：运用生命周期评价(LCA)方法对西安市北石桥污水净化中心污水处理工艺从其原材料开采和加工开始直到污水厂施工建设、处理运行以及废弃拆除的生命周期全过程资源消耗、能耗和环境影响进行了识别和量化分析,同时结合一维水质稀释模型,提出污水处理环境效益估算模型。采用最大污染权重因子对模型进行计算,结果表明,采用深度处理比常规二级处理多产生1708.52×109kJ的环境正效益。The life cycle assessment （LCA） method is used for identification and quantitative analysis from the procession and extraction of raw materials to the sewage plant construction and operation, additionally with resources consumption of process in handling LC and environmental impact in Xi＇an Beishiqiao sewage purification center. Meanwhile, it advanced wastewater treatment environmental benefits estimation model by diluting with water one-dimensional model. The results indicate that the tertiary treatment generated 1 708.52 × 109 kJ environmental benefits more than conventional secondary treatment.

关 键 词：生命周期评价 污水处理 再生利用 环境效益 

分 类 号：X824[环境科学与工程—环境工程]