化工废水除硅系统运行工艺参数优化研究  

Study on Optimization of Operation Process Parametersof Silicon Removal System for Chemical Wastewater

作　　者：郭采君 Guo Caijun(National Energy Group Coal Industry Corporation Water Management Center,Yinchuan 754011,China)

机构地区：[1]国家能源集团宁夏煤业有限责任公司水务分公司,宁夏银川754011

出　　处：《云南化工》2024年第6期123-125,共3页Yunnan Chemical Technology

摘　　要：针对废水除硅系统除硅效果不佳、出水沉淀池频繁翻泥严重制约生产装置稳定运行的实际问题,开展了工艺参数优化相关研究。实验结果表明,当调节反应pH值为7,控制偏铝酸钠加药量与进水中含硅量比例为1∶1,且絮凝剂PAC投加质量浓度为30 mg/L时,出水硅质量浓度为17 mg/L、浊度为8 NTU,均可满足除硅系统出水水质指标要求。In view of the practical problems that the silicon removal effect of the wastewater silicon removal system is not good,and the frequent mud turning of the effluent sedimentation tank seriously restricts the stable operation of the production device,this paper carries out related research on process parameter optimization.The experimental results show that when the pH value of the reaction is adjusted to 7,the ratio of the dosage of sodium metaaluminate to the silicon content in the influent is controlled to be 1∶1,and the concentration of the flocculant PAC is 30 mg/L,the effluent silicon content is 17 mg/L and the turbidity is 8 NTU,which can meet the requirements of the effluent water quality index of the silicon removal system.

关 键 词：除硅系统 PH值 偏铝酸钠 PAC 

分 类 号：X784[环境科学与工程—环境工程]