多级物化生物耦合工艺应用于碱减量废水的处理  

Application of Multistage Physio-chemical and Biological Process for Alkali Reduction Wastewater Treatment

作　　者：王丹[1] 金鹏康[1] 王自元 单媛媛 刘惠岳 WANG Dan1, JIN Pengkang1, WANG Ziyuan2, SHAN Yuanyuan2, LIU Huiyue2(School of Environmental and Municipal Engineering, Xi＇an University of Architecture and Technology, Xi＇an 710055, Chino; 2.Zhejiang Fenglin Linen Dyeing and Finishing, Co., Ltd, Jiaxing 314500, Chin)

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]浙江丰林亚麻染整有限公司,浙江嘉兴314500

出　　处：《水处理技术》2018年第4期126-129,132,共5页Technology of Water Treatment

基　　金：国家科技支撑计划项目(2014BAC13B06)

摘　　要：针对碱减量废水水量小,但污染物含量高、p H高、对生物处理系统冲击较大,与一般印染废水混合处理会导致出水水质难以达标的情况,采用多级物化生物耦合工艺对浙江省某印染企业碱减量废水进行分质处理。结果表明,系统对COD、UV254、TOC均可有效去除,去除率分别为98.4%、84.45%、92.9%;水解后的主要成分对苯二甲酸(TA)的去除率则为99.64%。出水水质稳定并可达到GB 4287-2012间接排放标准。各个环节的三维荧光光谱图和分子量分布检测表明,碱减量废水中有机物以蛋白质类和少量的腐殖酸类物质为主,相对分子质量主要分布在约400和600。处理工艺具有独立性和高效性,可为类似废水处理提供价值。Aimed at the alkali reduction wastewater had high content of pollutants and high pH with low quantity, and had larger impact on biological treatment system, and the treated effluent quality difficult to reach the standard when mixed with printing and dyeing wastewater. Multistage physio- chemical and biological process was used to separately treat alkali reduction wastewater of a dyeing and printing company in Zhejiang province. The results showed that, COD, UV254 and TOC could remove efficiently by this process, and the removal rate was 98.4%, 84.45% and 92.9%, respectively. The major ingredient was terephthalic acid （TA） aRer hydrolysis, and the removal rate was 99.64%. The effluent quality could reach indirect discharge standard of GB 4287-2012. Three-dimensional fluorescence spectrum and molecular weight distribution test of each part showed that, alkali reduction wastewater was mainly composed of protein and little humic acid, and the relative molecular mass mainly distributed in 400--600. The treatment process had independence and high efficiency, and it could also provide certain reference value for similar wastewater treatment process.

关 键 词：碱减量废水 多级物化生物耦合 微电解 芬顿氧化 

分 类 号：X791[环境科学与工程—环境工程]