单_多晶硅生产废水处理工程实例.pdfVIP

20 1 () Vol.20 No. 1 20113 Journal of Huaihai Institute of T echnology(Natural Science Edition) ar. 2011 DOI: 10.3969/ j. issn 2011. 01.017 * 1 2 3 郑 静 , 陈 敏 ,钱 飞 ( 1. , 210044; 2. , 214021; 3., 210048) :针对江苏省某硅科技有限公司企业排放的单多晶硅生产废水的 点, 采用分质排放,单独 预处理,其中含氟废水采用调节pH化学反应沉淀后再混凝反应沉淀, 清洗包装压滤废水采用混 凝反应预处理后两股废水混合, 再采用UASB 生物接触氧化工艺进行处理工程实践表明, 出水 达到综合污水排放标准(GB 中的指标该工艺处理效果优良,系统运行稳定, 耐冲击 负荷,运行费用较低 :混凝反应;沉淀; UASB; 生物接触氧化 :X703 :A : 2011 Engineering Design and Disposal of Waste Water Caused by Single and Polycrystalline Silicon Production 1 2 3 ZHENG Jing , CHEN in , QIAN Fei ( 1. Binjiang College, Nanjing University of Information Science Technology, Nanjing 210044, China; 2. Wuxi New Hope Environmental Science and Technology Co. , Ltd., Wuxi 214021, China; 3. Wuxi urata Electronics Co. , Ltd., Wuxi 210048, China) Abstract: This engineering design aimed to dispose of the waste water discharged by a silicon technology company inWuxi. It employedthe craft of wastewater disposal by different substance and individual predisposing sewage. The fluoridecontaining waste water, whose pH value had been adjusted, was precipitated by coagulation reaction after chemical precipitation, and was mixed with another branch of water produced by package clearing and predisposing of coagula tion during filter pressing. We disposed of this mixture by UASBBiological Contact Oxidation. Experiments of this desig