水泥工业协同处置印染废水污泥的可行性  

Feasibility of treatment of dyeing effluents sludge in collaboration with cement industry

作　　者：龚成晨[1] 徐竟成[1] 李健 

机构地区：[1]同济大学环境科学与工程学院长江水环境教育部重点实验室,上海200092 [2]上海纺织节能环保中心,上海200082

出　　处：《印染》2013年第6期11-13,25,共4页China Dyeing and Finishing

基　　金：国家水体污染控制与治理科技重大专项(2010ZX07319-001-02)

摘　　要：印染废水处理后的剩余污泥成分复杂,有害物质相对浓度较高,处置难度较大,一般纳入危险废弃物范畴。利用水泥工业协同处置印染废水污泥可实现无害化、资源化。试验表明,在煅烧温度1 400℃、保温时间60 min的条件下,掺加一定量印染废水污泥,有利于提高水泥生料的易烧性,水泥熟料中游离氧化钙(f-CaO)含量均在1.5%以下,所得熟料的物相组成与参比熟料基本相同;污泥中的重金属元素绝大部分固化在水泥熟料中,水泥固化体的浸出毒性远低于国家标准。The excess sludge produced during dyeing effluents treatment is of hazardous waste for its complex compositions, high content of harmful substances and difficulty to dispose. Harmless and resources of excess sludge can be realized in an effective way through cement industry. The results show that the burnability of the cement can be improved by adding dyeing ef- fluents sludge at the calcining condition of 1 400 ~C for 60 rain. The content of f-CaO in the cement clinker is less than 1.5%, and composition of clinker is similar to the reference clinker. Most of heaw metals containing in the sludge are solidified into the cement clinker,and the extraction toxicity of cement solidification is far below the national standard

关 键 词：染整 废水处理 污泥 水泥工业 协同处置 

分 类 号：X791[环境科学与工程—环境工程]