Acidification-catalytic oxidation treatment of overhaul wastewater containing high-concentration MDEA

doi:10.11894/1005-829x.2015.35(11).081

INDUSTRIAL WATER TREATMENT ›› 2015, Vol. 35 ›› Issue (11): 81-85. doi: 10.11894/1005-829x.2015.35(11).081

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Acidification-catalytic oxidation treatment of overhaul wastewater containing high-concentration MDEA

Wang Bo¹, Wang Bing^1,2, Ren Hongyang², Li Yongtao¹, Zeng Yang¹

1. College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China;
2. Key Laboratory of Sichuan Environmental Protection for Oil and Gas Field Pollution Control and Environmental Security, Chengdu 610500, China

Received:2015-09-17 Online:2015-11-20 Published:2015-11-26
Contact: 10.11894/1005-829x.2015.35(11).081 E-mail:wangb@swpu.edu.cn

高浓度MDEA检修污水的酸化-催化氧化处理

王波¹, 王兵^1,2, 任宏洋², 李永涛¹, 曾扬¹

1. 西南石油大学化学化工学院, 四川成都 610500;
2. 四川省环境保护油气田污染防治与环境安全重点实验室, 四川成都 610500

通讯作者: 王兵,E-mail:wangb@swpu.edu.cn E-mail:wangb@swpu.edu.cn
作者简介:王波(1989-),硕士.E-mail:646006197@qq.com.
基金资助:
"十二五"国家科技支撑计划项目(2010BAC06B05)

Abstract

Abstract:

The combined process,acidification aeration-Fenton oxidation-ozone catalytic oxidation,has been used for treating overhaul wastewater containing high-concentration MDEA in a natural gas purification plant. The best technological parameters are determined through experiments. The results show that the catalysts prepared by excessive impregnation method contains a lot of active components of MnO₂,resulting in the increase of COD and NH₃-N removing rates by 13.1% and 10.5%,respectively. The COD of treated wastewater reduces from 2 600 mg/L to 107 mg/L,while NH₃-N reduces from 176 mg/L to 7.48 mg/L,meeting the second level requirements specified in the Integrated Wastewater Discharge Standard (GB 8978-1996).

Key words: overhaul wastewater, acidification aeration, Fenton oxidation, ozone, catalytic oxidation

摘要：

采用酸化曝气-Fenton氧化-臭氧催化氧化工艺处理某天然气净化厂含高浓度MDEA的检修污水,通过实验确定了最佳工艺参数.结果表明,过量浸渍法制备的催化剂中含有大量的活性组分MnO₂,使臭氧氧化对COD、NH₃-N的去除率分别提高了13.1%、10.5%,处理后的污水COD从2 600 mg/L降到107 mg/L,NH₃-N从176 mg/L降到7.48 mg/L,达到了《污水综合排放标准》(GB 8978-1996)二级标准的要求.

关键词: 检修污水, 酸化曝气, Fenton氧化, 臭氧, 催化氧化

CLC Number:

X703

Wang Bo, Wang Bing, Ren Hongyang, Li Yongtao, Zeng Yang. Acidification-catalytic oxidation treatment of overhaul wastewater containing high-concentration MDEA[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(11): 81-85.

王波, 王兵, 任宏洋, 李永涛, 曾扬. 高浓度MDEA检修污水的酸化-催化氧化处理[J]. 工业水处理, 2015, 35(11): 81-85.

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高浓度MDEA检修污水的酸化-催化氧化处理

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