磁加载絮凝优化污水深度除磷的试验研究  

Research on Optimization of Magnetic Flocculation in Deep Dephosphorization of Wastewater

作　　者：王少康 程方 郭兴芳[3] 申世峰 Wang Shaokang;Cheng Fang;Guo Xingfang;Shen Shifeng(School of Environmental and Municipal Engineering,Tianjin Chengjian University,Tianjin 300384,China;Tianjin Key Laboratory of Aquatic Science and Technology,Tianjin Chengjian University,Tianjin 300384,China;North China Municipal Engineering Design and Research Institute Co.Ltd.,Tianjin 300074,China;China Academy of Building Research Tianjin Institute,Tianjin 300384,China)

机构地区：[1]天津城建大学环境与市政工程学院,天津300384 [2]天津城建大学水质科学与技术天津市重点实验室,天津300384 [3]中国市政工程华北设计研究总院有限公司,天津300074 [4]中国建筑科学研究院天津分院,天津300384

出　　处：《河北环境工程学院学报》2021年第2期85-90,共6页Journal of Hebei University of Environmental Engineering

摘　　要：为满足天津市城镇污水处理厂地方标准(DB12/599—2015)对污水厂出水总磷的排放需求,对天津开发区某污水处理厂二沉池出水进行磁加载絮凝优化试验研究。通过设计正交试验和响应面试验,优化絮凝过程化学条件和水力条件,并探讨过程反应机理。结果表明,絮凝过程采用磁粉B,阴离子型PAM,G_(1)、G_(2)、G_(3)分别为80s^(-1)、50s^(-1)和20s^(-1),T_(1)、T_(2)、T_(3)分别为6min、4min和6min时,磁加载絮凝效果最佳,总磷最佳去除率约为85%,提标改造所需PFS投加量仅为9.20mg·L^(-1)。In order to meet the demand of total phosphorus under the new local standard(DB 12/599—2015)of Tianjin,an optimization experiment on magnetic coagulation to deep phosphorus removal of secondary biochemical wastewater taken from a regional sewage plant in TEDA was carried out.The chemical and hydraulic conditions of the flocculation process were optimized and the reaction mechanism of the flocculation process was discussed by designing orthogonal and response surface experiments.The results show that the best flocculation conditions for total phosphorus removal use magnetic powder B and the anionic,G_(1),G_(2),G_(3) are 80 s^(-1),50 s^(-1) and 20 s^(-1) respectively,and T_(1),T_(2),T_(3) are 6 min,4 min and 6 min respectively.The best removal effect of TP is about 85%,and only 9.20 mg·L^(-1) PFS is required for standard upgrade.

关 键 词：污水处理 深度除磷 磁加载絮凝 化学条件和水力条件 

分 类 号：X703[环境科学与工程—环境工程]