MBR工艺在垃圾焚烧发电厂渗滤液处理中的应用

Application of MBR Process in Treatment of Landfill Leachate from Waste-to-Energy Plant

采用膜生物反应器(MBR)工艺处理垃圾焚烧发电厂渗滤液可有效的实现达标排放。MBR装置由生化和超滤系统组成。生化区有生化反应池,有机物和氨氮在其中经过好氧生物降解得到有效去除,超滤系统的出水至排水系统中。当垃圾渗滤液中CODCr为65 000 mg.L-1,NH3-N为1 200 mg.L-1时,其超滤清液出水指标ρ(CODCr)≤800 mg.L-1、ρ(NH3-N)≤25 mg.L-1分别可达到《生活垃圾填埋污染控制标准》(GB16889-1997)三级标准和二级标准要求。

The landfill leachate from Waste-to-Energy Plant can be efficiently treated by Membrane Bio --reactor （MBR） process. The MBR plant consists of the equipment of biology and ultrafiltration （UF） system, The biological zone consists of the bioreactors, where the organic material and NH3-N are biodegraded in the presence of oxygen. The wastewater permeation leaving the ultrafiltration plant will be pumped to the sewer. The inlet concentration of leachate is CODCr 65 000 mg · L^-1 , NH3-N 1 200 mg · L^-1 ; the outlet of UF has reached the Standard for Pollution Control on the Landfill Site hr Domestic Waste （GB16889-1997） third-class and second-class standard （ρ （CODCr） ≤800 mg · L^-1. ρ （NH3 -N） 425 mg · L^-1） respectively.