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management systems a nd measures esta blished by, and a number of pragmatic, combine d part -time workforce e ducation information, the prote ction of the digital campus constr uction and sustaina ble development. Six Burea u attache s great importance to i nformation te chnol ogy security, i nformation technology security, e ntrust XX City Center for educati onal i nformation a nd e qui pment ded
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采用兩級厭氧好氧活性污泥法(A/O)與活性污泥浸沒式膜生物反應(yīng)器(AS—SMBR)結(jié)合的生化處理系統(tǒng)和納濾(NF)深度處理系統(tǒng),處理BOD,/NH3-N比為0.13~0.22,BOD,/COD比僅0.11左右的老齡化垃圾滲濾液。在水力停留時間不變的條件下,采用同步培養(yǎng)馴化法,控制生化系統(tǒng)DO值在3~4mg/L,回流比為400%~500%,pH≥7.2,考察了處理系統(tǒng)對垃圾滲濾液中主要污染物的去除情況和MLSS、pH和sV30 等運(yùn)行指標(biāo)的變化情況,結(jié)果表明,生化系統(tǒng)出水的NH3-N去除率〉99%,COD平均去除率〉50%;NF系統(tǒng)出水的COD去除率≥91%,NH3-N濃度〈8mg/L,且回收率≥75%,出水完全達(dá)到GBl6889—2008標(biāo)準(zhǔn)中表2的污染物濃度限值和提標(biāo)改造的要求。