环保性碱液强化萃取剂处理高含酚量的焦化废水

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肖丁天¹，笛福.阿拉²，卿山^1*，肖华强³

1. 昆明理工大学冶金与能源工程学院，云南昆明 650093 2. 中国科学院过程工程研究所，离子液体清洁过程北京市重点实验室, 北京 100190 3. 昆明钢铁控股有限公司，云南昆明 650093

收稿日期:2018-07-02修回日期:2018-09-07出版日期:2018-11-22发布日期:2018-11-19
通讯作者:卿山

基金资助:中国国家自然科学基金

High phenol-containing coking wastewater treatment with environmentally benign alkali-enhanced extractant

Dingtian XIAO¹, Latif ULLAH², Shan QING^1*, Huaqiang XIAO³

1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China 2. Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 3. Wukun Steel Co., Ltd., Kunming, Yunnan 650093, China

Received:2018-07-02Revised:2018-09-07Online:2018-11-22Published:2018-11-19
Contact:QING Shan

Supported by:National Natural Science Foundation of China

摘要/Abstract

摘要： 本工作研究了一种注重于减少二次有机污染的废水高效环保脱酚工艺，采用了一种创新的方法采集含酚焦化废水的样品，通过检测特定参数确定废水样品的化学成分，避免实验误差且增强了水处理效果. 蒸氨废水是一种理想的焦化废水样品，脱酚过程中不会产生酸焦油油膜和硫酸铵沉淀. 相对于蒸氨废水，残余氨水不仅会导致严重的水污染还会消耗更多的酸，导致成本增高. 从环保角度研究萃取剂，除了关注其脱酚效率还需要研究其他影响参数如总氰量、S?含量、氨氮量、Cl?含量、SO42?含量、挥发酚含量、总含盐、污水含油量、总硬度、CODCr、电导率和pH值等. 考察了有机微粒的扩散特征和导致脱酚前后参数变化的原因. 以温度23℃、浓度为3wt%的氢氧化钠溶液反复洗涤用过的BQ络合萃取剂5次可得再生萃取剂，用其处理过后废水挥发酚含量为265.45 mg/L. 这款优良的萃取剂的CODCr，污水含油量，pH，脱酚效率依次分别为3638.34, 188.86, 6.18和83.76%，造成的二次有机污染较少.

引用本文

肖丁天笛福卿山肖华强. 环保性碱液强化萃取剂处理高含酚量的焦化废水[J]. 过程工程学报, 2018, 18(S1): 153-160.
Dingtian XIAO Latif ULLAH Shan QING Huaqiang XIAO. High phenol-containing coking wastewater treatment with environmentally benign alkali-enhanced extractant[J]. Chin. J. Process Eng., 2018, 18(S1): 153-160.

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