摘要
利用垃圾柱在实验室模拟降雨条件下,对建筑垃圾渗滤液的产生量、pH、TOC、COD、Cl-、SO42-、可溶性Fe、总硬度等指标进行了长达440d的连续监测,分析了各指标的变化趋势,讨论了渗滤液可能对填埋场(或堆场)周边环境可能造成的危害。结果表明,建筑垃圾渗滤液在填埋3a后,除总硬度外,其它指标均可达到地下水及地表水Ⅲ类标准,如注意填埋场的选址,仅需对填埋场初期渗滤液进行处理即可直接排放。
Parameters including leachate generation of construction waste, pH, TOC, COD, Cl-, SO42-, dissolvable Fe and hardness were continuously monitored in 440d under the condition of laboratory precipitation. The change tendency of various parameters as well as impact of leachate on the surrounding landfill environment was analyzed. Results showed that other parameters except hardness in the leachate can meet Class III of underground and surface water criteria after three years landfill. Initial leachate can be treated for direct discharge if the landfill site is properly selected.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2007年第11期20-22,29,共4页
Environmental Science & Technology
基金
上海市重点学科建设项目(P1304)
关键词
建筑垃圾
渗滤液
特性
危害
construction waste
leachate
characteristics
hazardousness
