沉淀法回收对甲酚模拟废水中酚的研究  

Study on recovery P-cresol from simulated phenolic wastewater by precipitation method

作　　者：杨鹏辉[1,2] 于洪丽 潘昱晨 蔡乾锋 屈撑囤 YANG Penghui;YU Hongli;PAN Yuchen;CAI Qianfeng;QU Chengtun(College of Chemistry and Chemical Engineering,Xi'an Shiyou University,Xi'an Shaanxi 710065,China;Shaanxi Key Laboratory of Environmental Pollution Control&Reservoir Protection,Xi'an Shaanxi 710065,China;Shaanxi Yijiarui Energy Technology Co.,Ltd.,Xi'an Shaanxi 710076,China)

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]陕西省油气田环境污染控制技术与储层保护重点实验室,陕西西安710065 [3]陕西亿佳瑞能源科技有限公司,陕西西安710076

出　　处：《石油化工应用》2024年第3期112-114,共3页Petrochemical Industry Application

基　　金：西安市科技计划项目(22GXFW0100)。

摘　　要：用离子沉淀法回收对甲酚模拟废水中的酚,考察了不同的金属离子沉淀剂、沉淀剂加量、温度与pH值对酚去除率的影响。结果表明,最优的沉淀剂为BaCl_(2);对于50 mL、5000 mg/L的对甲酚模拟废水,当温度为25℃,pH值为14,BaCl_(2)溶液加量为18 mL,酚去除率可达52.3%。将收集的酚钡盐沉淀用稀HCl中和,用乙酸丁酯为萃取剂进行萃取,对甲酚的萃取回收率达到99.69%,为高含酚废水的资源化利用提供了思路和方法。P-cresol was recovered from simulated phenolic wastewater by precipitation.The effects of type of precipitants,precipitant dosage,temperature and pH value on P-cresol removal rate were investigated.The results showed that the best precipitant was barium chloride and removal rate could reach 52.3%at 25℃and pH 14 when barium chloride dosage was 18 mL for 50 mL of 5000 mg/L simulated phenolic wastewater.The precipitants were neutralized with dilute HCl and the free P-cresol was extracted with butyl acetate.The extraction efficiency reached 99.69%.The research provided ideas and methods for resource utilization of high concentration of phenolic wastewater.

关 键 词：对甲酚 化学沉淀 去除率 废水 资源化 

分 类 号：TE992.2[石油与天然气工程—石油机械设备]