毛皮废水连续式厌氧-好氧处理工艺参数研究  

Analysis of anaerobic-oxic treatment process in fur making wastewater

作　　者：花莉 李璐 马宏瑞 HUA Li;LI Lu;MA Hong rui(School of Environmental Science and Engineering, Shaanxi University of Science＆ Technology, Xi＇an 710021, China)

机构地区：[1]陕西科技大学环境科学与工程学院,陕西西安710021

出　　处：《陕西科技大学学报》2018年第3期40-45,共6页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅自然科学基础研究计划项目(2015JM4127)

摘　　要：浙江某毛皮厂采用水解酸化+好氧活性污泥工艺处理污水,因其生化系统采用污泥大回流的运行方式,导致水解阶段的水解效果不明显,出水水质难以达标,迫切需要进行工程改造.根据该毛皮废水水质特征,采用强化厌氧-好氧活性污泥工艺,对工艺的运行参数进行优化,以便为工程改造提供重要的工艺参数.结果表明:在进水CODCr浓度不超过2 000mg/L、氨氮浓度不超过100mg/L的情况下,厌氧和好氧的水力停留时间都为1.5d,此时系统达到最优化的状态,CODCr、BOD5、氨氮和色度的去除率都稳定在92%以上,出水水质完全能达到《制革及毛皮加工工业水污染物排放标准》(GB 30486-2013)所规定的直接排放要求.The original treating process for fur making wastewater of a fur factory in Zhejiang was hydrolysis acidification＋aerobic activated sludge process.Sludge recycling was reused at a big recycling ratio in biochemical system,which leading to the poor hydrolysis effect.Therefore,the effluent cannot reach the discharging standard and the modification is essential.Based on the characteristics of fur wastewater,A-O process was adopted and optimized in order to supply data for the wastewater treatment modification.The results showed when the influent concentration of CODCrdidn＇t exceed 2 000 mg/L and the ammonia concentration was less than 100 mg/L,both best HRT of anaerobic reactor and aerobic reactor were 1.5 d.The removal efficient of CODCr,BOD5,SS,ammonia and color were higher than 92%.The treated effluent can reach the discharge standard of water pollutants for leather and fur making industry（GB 30486-2013）and can be discharged directly.

关 键 词：毛皮加工废水 厌氧和好氧工艺 废水处理 

分 类 号：X794[环境科学与工程—环境工程]