酿酒废水处理中化学除磷工艺优化  

Optimization of phosphorus removal process by chemical method in Baijiu brewing wastewater treatment

作　　者：曾伟 宋珊 苏永平 李杰 于昌文 王强[1] ZENG Wei;SONG Shan;SU Yongping;LI Jie;YU Changwen;WANG Qiang(Luzhou Laojiao Co.,Ltd.,Luzhou 646000,China)

机构地区：[1]泸州老窖股份有限公司,四川泸州646000

出　　处：《中国酿造》2024年第10期194-198,共5页China Brewing

基　　金：泸州老窖酿酒有限责任公司污水站提标技改项目(川投资备【2017-510504-77-03-232294】JXQB-0437号)。

摘　　要：为优化酿酒废水处理工艺的化学除磷环节,采用单因素试验结合响应面法探究初始碱度、初始pH和聚合硫酸铁(PFS)添加量对酿酒废水化学除磷的影响,对除磷条件进行优化,并在实际废水处理中验证其可行性及运行效果。结果表明,最佳除磷工艺为初始碱度27 mmol/L、初始pH值7.0、PFS添加量0.1%。此优化条件下,除磷效率最高可达98.06%,初始碱度、初始pH均为影响聚合硫酸铁除磷效果的关键因素。2023年在实际酿酒废水化学除磷环节中除磷率可高达98.8%,且效果稳定,因此得到的最佳酿酒废水除磷工艺具有实用性及一定的参考价值。In order to optimize the phosphorus removal process by chemical method ofBaijiu brewing wastewater treatment process,the effects of initial alkalinity,initial pH,and polyferric sulfate(PFS)on thephosphorus removal ofBaijiu brewing wastewater were investigated by single factor test combined with response surface method.The phosphorus removal conditions were optimized,and their feasibility and operational effects were verified in actual wastewater treatment.The results showed that the optimized phosphorus removal process was as follows:initial alkalinity 27 mmol/L,initial pH 7.0,and PFS addition 0.1%.Under these optimal conditions,the highest phosphorus removal efficiency could reach 98.06%,and the initial alkalinity and initial pH were the key factors affecting the phosphorus removal efficiency of polyferric sulfate.In 2023,the phosphorus removal rate in the actual phosphorus removal process by chemical method of Baijiu brewing wastewater could be as high as 98.8%,and the effect was stable,so the optimal phosphorus removal process ofBaijiu brewing wastewater had practical and certain reference value.

关 键 词：化学除磷 酿酒废水 碱度 运行条件 

分 类 号：TS261.2[轻工技术与工程—发酵工程]