硫酸亚铁对污水厂痕量磷去除效果的研究  

Study on The Removal Effect of Treatment The Trace Amout of Phosphorus in Wastewater Plant by FeSO

作　　者：宋晓乔 宋少花 王宇峰 马传澍 方睿 任天龙 周涛 SONG Xiao-qiao;SONG Shao-hua;WANG Yu-feng;MA Chuan-shu;FANG Rui;REN Tian-long;ZHOU Tao(School of Civil Engineering,Xi’an University of Architecture and Technology Huaqing Gollege,Xi’an 710043,China;Xi'an Environmental Monitoring Station,Xi’an 7101196,China;Xi’an Capital Water Co.,Ltd.,Xi’an 710086,China;Xi'an Huapu Water Treatment Equipment Co.,Ltd.,Xi’an710086,China)

机构地区：[1]西安建筑科技大学华清学院土木工程学院,陕西西安710043 [2]西安市环境监测站,陕西西安710119 [3]西安创业水务有限公司,陕西西安710086 [4]西安华浦水处理设备有限公司,陕西西安710077

出　　处：《环境科技》2022年第2期13-16,共4页Environmental Science and Technology

基　　金：陕西省教育厅专项科研计划项目(21JK0737).

摘　　要：为满足西安市地表水准Ⅳ类水质标准的要求,必须提高城市污水处理厂除磷能力,故西安市某污水处理厂拟采用市面上成本低廉可广泛使用的硫酸亚铁(FeSO_(4))作混凝剂处理生化出水痕量磷,并采用单因素实验法进行试验确定FeSO_(4)投加量、转速、时间和pH值等最佳参数。试验结果表明:当FeSO_(4)投加量为1 mL,pH值为7,混凝转速为200 r/min,混合时间为1 min,絮凝转速为100 r/min,絮凝时间为20 min,沉淀时间为30 min时,除磷效果最高,除磷率可达99.37%。In order to meet the Grade IV water quality standards of Xi’an,it is necessary to improve the phosphorus removal capacity of urban Sewage Treatment,therefore,it intends to use coagulant FeSO_(4) which is low-cost and widely used to produce trace amounts of phosphorus in effluent in the Sewage Treatment in Xi’an.It is used to optimize the parameters by environmental engineering single factor method,such as dosage,rotation speed,time and pH.The experimental results show that:when the dosage of FeSO_(4) is 1 mL,the pH is 7,the coagulation speed is 200 r/min,the mixing time is 1 min,the flocculation speed is 100 r/min,the flocculation time is 20 min,and the precipitation time is 30 min,the removal efficiency of phosphorus is the highest,the removal rate of phosphorus is 99.37%.

关 键 词：痕量磷 絮凝剂 生活污水 

分 类 号：X5[环境科学与工程—环境工程]