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超聲與堿聯(lián)合預(yù)處理剩余污泥中溫兩相厭氧消化
摘要: 以長(zhǎng)春西郊污水處理廠(A/O工藝)剩余活性污泥為研究對(duì)象,考察了超聲與生石灰聯(lián)合預(yù)處理對(duì)后續(xù)剩余污泥兩相中溫厭氧消化的影響.結(jié)果表明:聯(lián)合預(yù)處理的剩余污泥經(jīng)過(guò)厭氧消化后,平均VS去除率約為49.4%,污泥含水率從97.6%降低至93.8%.SEM分析表明兩相反應(yīng)器內(nèi)污泥絮體被充分破壞.厭氧消化過(guò)程中在產(chǎn)酸相和產(chǎn)甲烷相內(nèi),NH4-N濃度均有提高,但是沒(méi)有出現(xiàn)磷的顯著釋放. Abstract: Based on municipal waste activated sludge(WAS) obtained from Xijiao WWTP (A/O process) in Changchun, the effects of combined pretreatment of ultrasound together with CaO were investigated on subsequent two-phase mesophilic anaerobic digestion. The results indicate that the average volatile solids (VS) reduction is approximately 49.4%, and moisture content of effluent sludge decreases from 97.6% to 93.8% after anaerobic digestion. The sludge flocs are completely broken down in two phases by scanning electron microscopy (SEM) analysis. NH4-N concentrations in two phases are enhanced during anaerobic digestion. However, there exists no significant phosphorus release in two phases. 作 者: 尹軍 張立國(guó) 劉蕾 林英姿 趙純廣 YIN Jun ZHANG Li-guo LIU Lei LIN Ying-zi ZHAO Chun-guang 作者單位: 尹軍,林英姿,YIN Jun,LIN Ying-zi(哈爾濱工業(yè)大學(xué),市政環(huán)境工程學(xué)院,黑龍江,哈爾濱,150090;吉林建筑工程學(xué)院,環(huán)境工程系,吉林,長(zhǎng)春,130021)張立國(guó),劉蕾,ZHANG Li-guo,LIU Lei(哈爾濱工業(yè)大學(xué),市政環(huán)境工程學(xué)院,黑龍江,哈爾濱,150090)
趙純廣,ZHAO Chun-guang(吉林建筑工程學(xué)院,環(huán)境工程系,吉林,長(zhǎng)春,130021)
期 刊: 中山大學(xué)學(xué)報(bào)(自然科學(xué)版) ISTICPKU Journal: ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI 年,卷(期): 2007, 46(z1) 分類(lèi)號(hào): X703 關(guān)鍵詞: 中溫 厭氧消化 剩余活性污泥 超聲預(yù)處理 堿預(yù)處理 兩相 Keywords: mesophilic anaerobic digestion waste activated sludge(WAS) ultrasonic pretreatment alkaline pretreatment two-phase【超聲與堿聯(lián)合預(yù)處理剩余污泥中溫兩相厭氧消化】相關(guān)文章:
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