电镀污泥填埋豁免量限值研究——以重庆市为例

Exemption Limit Value of Electroplating Sludge in Landfill: Case Study in Chongqing

介绍了危险废物填埋环节豁免量限值的计算方法,并以重庆市15家电镀企业产生的电镀污泥为例,计算该市电镀污泥进入生活垃圾填埋场豁免量限值。结果显示,以重庆市生活垃圾填埋场的环境参数统计值建立的电镀污泥填埋处置豁免量反推计算场景中,在暴露点处有害物的浓度分别为0.0055mg/L(致癌效应)和1.2mg/L(非致癌效应),在释放点处有害物的浓度分别为0.0034mg/L(致癌效应)和0.76mg/L(非致癌效应)。计算得到电镀污泥填埋处置豁免管理限值为2.992t/a,即该生活垃圾填埋场每年可填埋处置电镀污泥量小于3t。

The method of calculation of the exemption limit value of the hazardous waste in the landfill was introduced. The electroplating sludge generated by 15 electroplating enterprises in Chongqing was taken as study case to introduce how to calculate the exemption limit value of electroplating sludge in the municipal solid waste （MSW） landfill. The results showed that in back-stepping calculation scenario which was established on the statistical values of environmental parameters of the MSW landfill site in Chongqing, the pollutants concentration at the exposure point and release point were 0. 005 5 mg/L （carcinogenic effects） , 1.2 mg/L （non-carcinogenic effects） and 0. 003 4 mg/L （carcinogenic effects）, 0.76 mg/L （non-carcinogenic effects）, respectively. The electroplating sludge exemption limit value in MSW landfill was 2.992 t/a, i.e. the electroplating sludge less than 3 tons within one year could be disposed in this landfill site.