【摘要】 以实际工程为例对目前国内主流的三种污泥处理处置工艺(好氧发酵、填埋、焚烧)进行了基于生命周期的系统评价,分别从致癌风险、温室效应、土地占用和能耗四个方面,横向比较了三种工艺的环境负荷。结果显示,好氧发酵工艺在致癌风险、温室效应和能耗方面均表现出较低负荷值,而焚烧则在运行能耗、致癌风险上负荷较高,填埋的主要问题集中在土地占用和温室效应两方面。更多还原

【Abstract】 Three typical sewage sludge treatment and disposal technologies including aerobic compost,landfill and incineration were assessed based on life cycle.Environmental loads(Pt) of the three technologies were calculated and compared in terms of carcinogenic risk,greenhouse effect,land occupancy rate and energy consumption.The results indicated that aerobic compost had a lower Pt amount in carcinogenic risk,greenhouse effect and energy consumption than landfill and incineration.However,incineration had a disadvantage in carcinogenic risk and energy consumption.Similarly,the main problems of landfill focused on land occupancy rate and greenhouse effect.更多还原