摘要
通过4个柱体(直接回灌陈腐垃圾和直接、好氧、调pH回灌新鲜垃圾)进行浓缩液回灌的对比研究,分析浓缩液的COD、氨氮及电导率的去除情况和DO、pH、温度对运行效果的影响。结果表明:浓缩液回灌可加速垃圾堆体的稳定化进程,同时对氨氮和盐类有很好的去除作用;回灌陈腐垃圾和鲜垃圾相比对各污染物的去除率更高;好氧和调pH预处理可增大氨氮和电导率的去除率。
The comparative study on concentrated leachate recirculation was carried out by using four cylinders.The four parts included recirculation on decayed waste and fresh waste,recirculation on fresh waste after aeration and adjusting pH.The removal efficiency of COD,ammonia nitrogen and conductivity of the concentrated leachate was analyzed,and the influence of DO,pH and temperature on operating effect was discussed.The results showed that concentrated leachate recirculation can accelerate stabilization of waste,and it has perfect removal efficiency of ammonia nitrogen and salts.Recirculation on decayed waste showed higher removal rate of pollutants than recirculation on fresh waste.Aeration and adjusting pH can increase removal rates of ammonia nitrogen and conductivity.
出处
《环境卫生工程》
2011年第1期11-15,共5页
Environmental Sanitation Engineering
关键词
回灌
反渗透
浓缩液
垃圾填埋场
recirculation
reverse osmosis
concentrated liquor
waste landfill site
