MBR组合工艺处理化纤染整废水的试验  

Experiment of Chemical Fiber Dyeing and Printing Wastewater Treatment by MBR Combination Process

作　　者：郭敏晓[1] 龚云娇 王晨光 叶涛 史文悦 GUO Minxiao;GONG Yunjiao;WANG Chenguang;YE Tao;SHI Wenyue(Jiaxing Vocational&Technical College,Jiaxing 314000,China;Zhejiang Shuangyi Environmental Technology Development Co.,Ltd.,Jiaxing 314000,China)

机构地区：[1]嘉兴职业技术学院,浙江嘉兴314000 [2]浙江双益环保科技发展有限公司,浙江嘉兴314000

出　　处：《净水技术》2019年第8期110-115,共6页Water Purification Technology

摘　　要：采用混凝沉淀-水解酸化-MBR组合工艺处理印染废水,探究组合工艺对COD、色度、金属锑的去除效果,评价膜系统的应用可行性。结果表明,废水经组合工艺处理后出水CODCr为62~98 mg/L,平均色度为49.9,总锑约为72μg/L,均达到《纺织染整工业水污染物排放标准》(GB 4287-2012)规定的间接排放要求。在总锑浓度为0~1.6 mg/L的条件下,活性污泥呼吸速率、COD去除率无显著变化;连续运行120 d,平均标准跨膜压差(TMP)为4.5 kPa,平均膜阻力为1.28 m-1,表明膜污染程度低。因此,文中设计的组合工艺适合该化纤染整废水的处理。The coagulation sedimentation-hydrolytic acidification-MBR combination process was used for the treatment of printing and dyeing wastewater.Effects of the combination process on removal of COD,chroma and antimony(sb)were investigated,and feasibility of the membrane system for wastewater treatment was evaluated.The results showed that CODCr,average chroma and antimony in MBR effluent were reduced to 62~98 mg/L,49.9 and 72 μg/L respectively by the combination process,which met the indirect discharge requirements of Discharge Standards of Water Pollutants for Dyeing and Finishing of Textile Industry(GB 4287-2012).When the concentration of antimony was 0~1.6 mg/L,the respiratory rate of activated sludge and removal rate of COD had no significant variation.After 120 days’ continuous operation,the average transmembrane pressure(TMP)was 4.5 kPa and the average membrane resistance was 1.28 m-1,indicating that the designed MBR combination process was suitable for the treatment of chemical fiber printing and dyeing wastewater.

关 键 词：化纤 印染 COD 色度 锑 MBR 

分 类 号：X703.1[环境科学与工程—环境工程]