我國垃圾滲濾液膜濃縮液處理現狀與污染控制建議
摘要
垃(la)圾(ji)滲濾液(ye)(ye)膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)是(shi)膜(mo)工(gong)(gong)(gong)藝處(chu)理(li)垃(la)圾(ji)滲濾液(ye)(ye)的(de)(de)副產物,相比(bi)垃(la)圾(ji)滲濾液(ye)(ye),具有更(geng)高濃(nong)(nong)度的(de)(de)有機(ji)污染(ran)(ran)物、無機(ji)鹽和金屬(shu)離(li)子(zi),且生化(hua)性(xing)較差(cha),若處(chu)置(zhi)不當會造成(cheng)更(geng)嚴重的(de)(de)二次污染(ran)(ran)。通(tong)過對國內外膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)處(chu)理(li)典型(xing)工(gong)(gong)(gong)藝的(de)(de)分析,探討回(hui)灌、高級氧化(hua)、蒸(zheng)(zheng)發、“預處(chu)理(li)+高級氧化(hua)+深度處(chu)理(li)”等不同工(gong)(gong)(gong)藝的(de)(de)處(chu)理(li)效果(guo)、存在問(wen)題(ti)以及工(gong)(gong)(gong)程(cheng)應用現(xian)狀。根據實際調研情況,我(wo)國膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)的(de)(de)安全處(chu)理(li)尚處(chu)于(yu)起步階段,高級氧化(hua)、浸沒(mei)燃燒(shao)蒸(zheng)(zheng)發(SCE)和機(ji)械(xie)式蒸(zheng)(zheng)汽再壓縮(suo)(MVC/MVR)等工(gong)(gong)(gong)程(cheng)應用技(ji)術也僅為(wei)小試(shi)或中試(shi)規模。為(wei)有效保(bao)障我(wo)國膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)安全處(chu)置(zhi),建議從源(yuan)頭減少膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)產量,改進(jin)并完善已有膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)處(chu)理(li)技(ji)術,開發膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)資(zi)源(yuan)化(hua)利(li)用技(ji)術,妥善處(chu)理(li)膜(mo)濃(nong)(nong)縮(suo)液(ye)(ye)二次污染(ran)(ran)物。

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