混凝对ABS树脂废水的同步破乳除磷研究  

Simultaneous Demulsification and Phosphorus Removal of ABS Resin Wastewater by Coagulation

作　　者：郑盛之[1,2,3] 庞维聪 宋玉栋[2,3] 周岳溪 李思敏[4] 许吉现[4] ZHENG Sheng-zhi;PANG Wei-cong;SONG Yu-dong;ZHOU Yue-xi;LI Si-min;XU Ji-xian(College of Water Science, Beijing Normal University, Beijing 100875, China;Research Center of Water Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China)

机构地区：[1]北京师范大学水科学研究院,北京100875 [2]中国环境科学研究院水污染控制技术研究中心,北京100012 [3]中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012 [4]河北工程大学能源与环境学院,河北邯郸056038

出　　处：《中国给水排水》2018年第9期51-55,共5页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07201-005)

摘　　要：ABS树脂生产废水是典型的高浓度难降解工业废水,胶乳和总磷含量高,达标困难。采用混凝工艺对ABS树脂废水进行破乳除磷研究,对混凝剂种类进行筛选和复配,并对混凝剂投加量、复配质量比以及p H值和温度等工艺条件进行优化。结果表明,混凝对ABS树脂废水的破乳和除磷过程紧密相联,投加适当的混凝剂可实现胶乳与磷的同步去除。Al2(SO4)3与Fe Cl3为最适混凝剂,两种药剂复配投加具有协同作用,在较低投加量下就能取得较好的破乳除磷效果。优化后的混凝剂复配质量比为1∶1、p H值为8、温度为25~45℃。ABS resin wastewater contains high concentration of latex and phosphorus, and is difficult to reach the newly issued discharge standards. To improve the removal efficiency of pollutants, coagulants were screened and compounded. The operating conditions, including dosage, compound ratio, pH and temperature, were optimized. The process of coagulation demulsification showed close interaction with the process of phosphorus removal. The synchronous removal of latex and phosphorus was achieved under certain coagulant dosage. Al2 （ SO4 ） 3 and FeCl3 were suitable coagulants, and the compound coag- ulant demonstrated synergistic effect. Using lower dosage of the compound, latex and phosphorus a- chieved similar removal efficiency to applied individually. Optimized coagulation conditions were com- pound mass ratio 1 ： 1, pH = 8, and 25 - 45℃.

关 键 词：ABS树脂废水 混凝 破乳 除磷 硫酸铝 氯化铁 

分 类 号：TU992.3[建筑科学—市政工程]