水解酸化+生物接触氧化在印染废水处理中的应用  

Application of Hydrolysis Acidification+Biological Contact Oxidation in the Treatment of Printing and Dyeing Wastewater

作　　者：李治刚 LI Zhigang(Lu Thai Textile Co.Ltd.,Zibo,Shandong 255000)

机构地区：[1]鲁泰纺织股份有限公司,山东淄博255000

出　　处：《化工生产与技术》2024年第2期29-32,46,I0004,共6页Chemical Production and Technology

摘　　要：为了更高效的处理印染废水中的污染物,采用水解酸化+生物接触氧化法对混合染料废水进行处理,研究各工艺阶段对废水处理的影响,且因印染废水中化学需氧量(COD)较高,重点考察COD的去除效果。结果表明,水解酸化阶段对COD的去除率为29.17%;进一步通过2级生物接触氧化后,COD去除率提高至90.92%;当流量为5 L/h,pH为7时,可实现COD的较高去除率即92.58%,且在一定程度上节约处理成本。该方法可实现对混合染料废水中COD、五日生化需氧量(BOD5)、色度以及氨氮的有效去除。In order to treat pollutants in printing and dyeing wastewater more efficiently,the hydrolysis acidification+biological contact oxidation method was adopted to treat mixed dye wastewater.The influence of each process stage on wastewater treatment was studied,and the removal effect of chemical oxygen demand(COD)was emphasized due to the high COD content in printing and dyeing wastewater.The results showed that the removal rate of COD during the hydrolysis and acidification stage was 29.17%.After further two-stage biological contact oxidation,the COD removal rate increased to 90.92%.When the flow rate was 5 L/h and the pH was 7,a higher COD removal rate of 92.58%could be achieved,and the treatment cost was reduced to a certain extent.This method can effectively remove COD,five-day biochemical oxygen demand(BOD5),chromaticity,and ammonia nitrogen from mixed dye wastewater.

关 键 词：水解酸化 生物接触氧化 染料废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]