| 高酚焦化废水萃取脱酚预处理 |
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| 引用本文： | 张红涛,刘永军,张云鹏,贾建军,贾志强,刘在堂.高酚焦化废水萃取脱酚预处理[J].环境污染治理技术与设备,2013(11):4427-4430. |
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| 作者姓名： | 张红涛 刘永军 张云鹏 贾建军 贾志强 刘在堂 |
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| 作者单位： | [1]西安建筑科技大学环境与市政工程学院,西安710055 [2]神木煤化工产业办,神木719000 [3]神木县恒源煤化公司,神木719000 |
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| 基金项目： | 榆林市科技局,神木产业办项目（k03260） |
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| 摘 要： | 为了降低高酚焦化废水中挥发酚的浓度，实验研究了磷酸三丁酯煤油溶液在不同条件下对高酚焦化废水进行萃取脱酚预处理的效果。结果表明，萃取时间为8min，磷酸三丁酯煤油浓度为30％，温度低于40％，pH低于8．0，萃取比（油／水）R=1：2时，经过萃取后分水挥发酚浓度由4165mg降低到127．62mg／L，去除率高达96．94％，为后续生化处理奠定了基础。而萃取剂经过氢氧化钠溶液反萃取再生后，萃取剂的回收利用率可达94．25％以上。
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| 关 键 词： | 焦化废水 挥发酚 磷酸三丁酯 |
Pretreatment of coking wastewater containing phenols by extraction method |
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| Zhang Hongtao Liu Yongjun,Zhang YunpengI Jia Jianjun,Jia Zhiqiang,Liu Zaitang.Pretreatment of coking wastewater containing phenols by extraction method[J].Techniques and Equipment for Environmental Pollution Control,2013(11):4427-4430. |
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| Authors: | Zhang Hongtao Liu Yongjun Zhang YunpengI Jia Jianjun Jia Zhiqiang Liu Zaitang |
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| Affiliation: | 3 ( 1. Institute of Environmental and Municipal Engineering, Xi＇ an University of Architecture and Technology, Xi＇ an 710055, China; 2. Shenmu Coal Chemical Industry Office, Shenmu 719000, China; 3. Shenmu Hengyuan Coal Company, Shenmu 719000, China) |
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| Abstract: | In order to reduce the concentration of volatile phenol in coking wastewater, under different con- ditions, the tributyl phosphate-kerosene solution was used for extracting phenol in coking wastewater pretreat- ment. Results showed that when the stirring time was 8 min, temperature was lower than 40℃ , pH was less than 8.0, oil/water ratio R = 1 ： 2, TBP-kerosene concentration was 30% , the volatile phenol concentration decreased from 4 165 mg/L to 127.62 rag/L, and the volatile phenol removing rate reached more than 96.94%. It laid a foundation for subsequent biological treatment. The extraction solvent was washed by sodium hydroxide solution, and the extraction solvent recycling rate was up to 94.25%. |
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| Keywords: | coking wastewater volatile phenol tributyl phosphate |
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