化学混凝处理酿造废水强化生物除磷工艺  

Enhanced Biological Phosphorus Removal Process in Chemical Coagulation Treatment of Brewery Wastewater

作　　者：王梓妍 周智萱 胡文勇[1] 周瑜[1] WANG Ziyan;ZHOU Zhixuan;HU Wenyong;ZHOU Yu(School of Biological Recourse and Environmental Science,Jishou University,Jishou 416000,Hunan China)

机构地区：[1]吉首大学生物资源与环境科学学院,湖南吉首416000

出　　处：《吉首大学学报(自然科学版)》2025年第1期51-57,共7页Journal of Jishou University(Natural Sciences Edition)

基　　金：湖南省大学生创新创业训练项目(3224018);高层次人才引进科研启动项目(1122005)。

摘　　要：在优化复合药剂(聚合氯化铝(PAC)+聚合氯化铁(PFC)+聚丙烯酰胺(PAM))投加位点的基础上,考察了关键因素(进水TP质量浓度、pH值和Al,Fe,P物质的量之比)对PAC+PFC+PAM组合强化出水除磷效能的影响,并结合XRD物相分析,初步探讨了PAC+PFC+PAM的除磷机理.结果表明,曝气生物滤池(BAF)池出水点为PAC+PFC+PAM最佳投加位点;BAF池出水最优除磷工艺条件为pH值8.0,n(Al)∶n(Fe)∶n(P)=0.76∶0.50∶1.00,最优工艺条件下的TP去除率为98.72%,且除磷效率不受进水TP质量浓度变化的影响,出水TP质量浓度低于2.0 mg/L;PAC+PFC+PAM化学除磷的沉淀物中的主要成分为Fe r PO 4(OH)3 r-3和Al(OH)3.On the basis of optimizing the dosage sites of composite chemicals(PAC+PFC+PAM),the total phosphorus(TP)removal efficiency was investigated with different pH,initial TP concentrations,Al,Fe,P molar ratio.Combined with the XRD phase analysis.The phosphorus removal mechanism of PAC+PFC+PAM was preliminary explored.The results show that the outlet point of BAF tank was the best adding point of PAC+PFC+PAM.The n(Al)∶n(Fe)∶n(P)=0.76∶0.50∶1.00,and the pH was 8.0.The TP removal efficiency was 98.72%.Moreover,the TP removal efficiency was hardly affected by the change of TP concentration of the influent water.The TP content of the effluent water was lower than 2.0 mg/L.In addition,the XRD results showed that the main components of the precipitates were Fe r PO 4(OH)3 r-3 and Al(OH)3.

关 键 词：酿造废水 化学混凝 总磷 混凝剂 

分 类 号：X703[环境科学与工程—环境工程]