Treatment of Oily Wastewater from Substation Accident Oil Pool Based on Process of Magnetic Flocculation and Electrocatalytic Oxidation

doi:10.3969/j.issn.1008-0198.2022.05.012

Hunan Electric Power ›› 2022, Vol. 42 ›› Issue (5): 69-74.doi: 10.3969/j.issn.1008-0198.2022.05.012

• New technology and Application • Previous Articles Next Articles

Treatment of Oily Wastewater from Substation Accident Oil Pool Based on Process of Magnetic Flocculation and Electrocatalytic Oxidation

WAN Tao^1,2, CHE Yao^1,2, LIU Heng³, ZHAO Ruidun^1,2, ZHU Qiaoyun³, XIANG Jingjing³, ZHANG Lei³

1. Hunan Province Key Laboratory of High Efficiency & Clean Thermal Power Technology, Changsha 410007, China;
2. State Grid Hunan Electric Power Company Limited Research Institute, Changsha 410007,China;
3. School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China

Received:2022-05-12 Revised:2022-07-12 Online:2022-10-25 Published:2022-11-16

Abstract

Abstract: In view of the characteristics of the oil pool wastewater containing a large amount of mineral insulating oil in substation, the combined process of magnetic flocculation and electrocatalytic oxidation is adopted to treat the oil containing wastewater, the flocculation effect of magnetic flocculation and conventional flocculation is compared, and the effect of electro-catalytic oxidation process parameters on oil removal rate in oil-bearing wastewater is studied. The results of dynamic simulation tests show that the combined process has a good effect on the treatment of oil-containing wastewater from the oil pool of a substation accident. The removal rates of oil, chemical oxygen demand,turbidity and ammonia nitrogen are 96.99%,85.98%, 90.85% and 78.86% respectively. The effluent quality meets the first-class standard of Comprehensive Wastewater Discharge Standard.

Key words: magnetic flocculation, electrocatalytic oxidation, combined process, wastewater, accident oil pool

CLC Number:

X703

WAN Tao, CHE Yao, LIU Heng, ZHAO Ruidun, ZHU Qiaoyun, XIANG Jingjing, ZHANG Lei. Treatment of Oily Wastewater from Substation Accident Oil Pool Based on Process of Magnetic Flocculation and Electrocatalytic Oxidation[J]. Hunan Electric Power, 2022, 42(5): 69-74.

References

[1]张体强.变电站污水处理现状与展望[J].环境科学与管理,2017,42(6):83-86.
[2]刘晓华,李辉,郭振国,等.变电站移动式一体化含油废水处理装置研究[J].绿色科技,2020,1(2):109-110,116.
[3]王晟,瞿子涵,蔡萱,等.变电站装配式高效油水分离事故油池研究[J].湖北电力,2021,45(5):45-51.
[4]陈维.绿色环保变电站废水达标排放分析与研究[J].给水排水,2012,48(1):56-57.
[5]中华人民共和国生态环境部.国家危险废物名录(2021年版)[R].北京:中华人民共和国生态环境部,2021.
[6]Masoudnia K, Raisi A, Aroujalian A,et al. A hybrid microfiltration/ultrafiltration membrane process for treatment of oily wastewater[J].Desalination and Water Treatment, 2015, 55(4):901-912.
[7]Wang C, Alpatova A, Mcphedran K N, et al.Coagulation/flocculation process with polyaluminum chloride for the remediation of oil sands process-affected water:Performance and mechanism study[J]. Journal of Environmental Management, 2015,160:254-262.
[8]杜国勇,杨月,王永红.含油废水吸附处理技术研究综述[J].应用化工,2021,50(9):2490-2495.
[9]杨强,卢浩,李裕东,等.聚结分离技术在含油污水处理中的应用研究进展[J].环境工程学报,2021,15(3):767-781.
[10]罗华庆,苏云,陆彩霞,等.物化组合工艺处理成品油库含油废水[J].净水技术,2018,37(7):75-78.
[11]Qiao J, Xiong Y. Electrochemical oxidation technology: A review of its application in high-efficiency treatment of wastewater containing persistent organic pollutants[J].Journal of Water Process Engineering, 2021,44:102308.
[12]王淑军,李恩泽,齐文豪,等.磁絮凝技术在水处理中的应用研究进展[J].应用化工,2021,50(1):244-249.
[13]张宏奇.微生物-电催化氧化组合工艺处理油田采出水[J].水处理技术,2018,44(1):107-109,113.
[14]郑心愿,华英豪. 磁加载多效澄清技术在城市黑臭水体治理和城市生活污水处理中的应用案例[J].环境工程学报, 2021,15(9):3136-3142.
[15]王利平,何又庆,范洪波,等. 磁絮凝分离法处理含油废水的试验[J].环境工程,2007,25(3):12-15,2.
[16]朱宗全,靖波,王秀军,等.含聚合物污水电化学处理中油珠与气泡的变化及对除油效果的影响[J].油田化学,2019,36(1):163-168.
[17]陈思,胡腾飞,于永波,等. 硫掺杂石墨烯电催化降解有机染料甲基橙[J]. 化工进展, 2021, 40(1): 550-558.
[18]Zhao R, Gao Z, Wang Y, et al.Using ZnCu alloy as a facile and effective anti-scale strategy for cathode cleaning during electrocatalytic advanced oxidation processes (EAOPs) of oil-field wastewater[J].Separation and Purification Technology, 2022,285:120316.
[19]刘宇程,梁庆玲,杨冰,等.Ti/RuO₂-SnO₂-TiO₂涂层电极电催化氧化苯酚废水研究[J].安全与环境学报,2018,18(2):683-690.

Treatment of Oily Wastewater from Substation Accident Oil Pool Based on Process of Magnetic Flocculation and Electrocatalytic Oxidation

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 1

Recommended Articles

Metrics

Comments