ELECTROCHEMICAL OXIDATION OF WASTE EMULSION WITH BORON-DOPED DIAMOND ANODES（BDD）

HOU Haimeng; QI Guoshu; WANG Jian; LI Baolei; KONG Deyong; ZHAO Yan; CHEN Ming; ZENG Le

doi:10.13205/j.hjgc.202201008

Volume 40 Issue 1

Mar. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(1): 46-51

HOU Haimeng, QI Guoshu, WANG Jian, LI Baolei, KONG Deyong, ZHAO Yan, CHEN Ming, ZENG Le. ELECTROCHEMICAL OXIDATION OF WASTE EMULSION WITH BORON-DOPED DIAMOND ANODES（BDD）[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(1): 46-51. doi: 10.13205/j.hjgc.202201008

Citation:

HOU Haimeng, QI Guoshu, WANG Jian, LI Baolei, KONG Deyong, ZHAO Yan, CHEN Ming, ZENG Le. ELECTROCHEMICAL OXIDATION OF WASTE EMULSION WITH BORON-DOPED DIAMOND ANODES（BDD）[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(1): 46-51. doi: 10.13205/j.hjgc.202201008

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ELECTROCHEMICAL OXIDATION OF WASTE EMULSION WITH BORON-DOPED DIAMOND ANODES（BDD）

doi: 10.13205/j.hjgc.202201008

HOU Haimeng^{1,2,3
,
,},
QI Guoshu^1,2,3,
WANG Jian^1,2,3,
LI Baolei^1,2,3,
KONG Deyong^1,2,3,
ZHAO Yan^1,2,3,
CHEN Ming^1,2,3,
ZENG Le^1,4

1. Shenyang Academy of Environmental Sciences, Shenyang 110167, China;
2. National Environmental Engineering Technology Center for Hazardous Waste Treatment, Shenyang 110167, China;
3. Technology Innovation Center for Hazardous Waste Treatment of Liaoning Province, Shenyang 110167, China;
4. Shenyang Huanke Testing Technology Co., Ltd, Shenyang 110015, China

Received Date: 2021-05-20
Available Online: 2022-03-30
Publish Date: 2022-03-30

Abstract

Abstract

Waste emulsion is a kind of high-concentration organic wastewater produced from mechanical processing, which belongs to hazardous waste. Electrochemical oxidation of BDD electrode is an effective method to treat waste emulsion. In this paper, the degradation effect of the waste emulsion treated by electrochemical oxidation of the BDD electrode was studied experimentally, and the effects of current density, electrolyte type and concentration, initial pH value and reaction temperature on the degradation efficiency were investigated. The results showed that the electrochemical oxidation of BDD electrode could effectively degrade the organic matter in the waste emulsion. When Na₂S₂O₈ was used as the electrolyte and the current density was greater than 60 mA/cm², the COD degradation rate reached more than 99% after 4 hours of reaction, and the maximum energy consumption is about 25 kW·h/kg for per 1 kg of COD. When the current density increased from 20 mA/cm² to 60 mA/cm², the COD degradation rate increased by about 13 percentage points, and the energy consumption increased accordingly. When the current density was 60 mA/cm² and the reaction time was 2 hours, the degradation efficiency of COD using Na₂S₂O₈ as the supporting electrolyte was about 10% higher than that with NaCl and Na₂SO₄ as the electrolyte. Increasing electrolyte concentration, reaction temperature and acidic conditions was conducive to the degradation of organic matter. The kinetic analysis showed that the process of electrochemical oxidation of waste emulsion with BDD electrode conformed to the first-order reaction kinetic equation, and the relationship between the first-order reaction kinetic constant k and the current density kept basically linear when the current density was lower than 60 mA/cm².
- BDD electrode,
- electrochemistry,
- waste emulsion,
- current density,
- supporting electrolyte,
- kinetics

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References(21)

References

[1]	张涛.机械加工乳化液废水的处理研究[D].西安:西安工程大学,2018.
[2]	XIONG Y J,WU B Q,HUANG X F,et al.Coupling magnetic particles with flocculants to enhance demulsification and separation of waste cutting emulsion for engineering applications[J].Journal of Environmental Sciences,2021,105:173-183.
[3]	冷超群,边文强,董涛,等.物化法处理废乳化液的实验研究[J].煤炭与化工,2017,40(11):43-48.
[4]	胡娜,佘玲玲,姚明辉,等.真空低温蒸馏在废乳化液处置中的应用研究[J].广东化工,2019,46(1):34-35.
[5]	丁晓惠.PA/PVDF管式纳滤膜的制备及处理废乳化液性能的研究[D].天津:天津工业大学,2019.
[6]	GARCIA-SEGURA S,OCON J D,CHONG M N.Electrochemical oxidation remediation of real wastewater effluents:a review[J].Process Safety and Environmental Protection,2018,113:48-67.
[7]	FRANCISCA C M,RUI A R,BOAVENTURA,E B,et al.Electrochemical advanced oxidation processes:a review on their application to synthetic and real wastewaters[J].Applied Catalysis B:Environmental,2017,202:217-261.
[8]	LI J,LI Y J,XIONG Z K,et al.The electrochemical advanced oxidation processes coupling of oxidants for organic pollutants degradation:a mini-review[J].Chinese Chemical Letters,2019,30(12):2139-2146.
[9]	GIWA A,YUSUF A,BALOGUN H A,et al.Recent advances in advanced oxidation processes for removal of contaminants from water:a comprehensive review[J].Process Safety and Environmental Protection,2021,146:220-256.
[10]	CORNEJO O M,MURRIETA M F,CASTAEDA L F,et al.Characterization of the reaction environment in flow reactors fitted with BDD electrodes for use in electrochemical advanced oxidation processes:a critical review[J].Electrochimica Acta,2020,331:135373.
[11]	YU X M,ZHOU M H,HU Y S,et al.Recent updates on electrochemical degradation of bio-refractoryorganic pollutants using BDD anode:a mini review[J].Environmental Science & Pollution Research,2014,21:8417-8431.
[12]	ABDELHAY A,JUM'H I,ALBSOUL A,et al.Performance of electrochemical oxidation over BDD anode for the treatment of different industrial dye-containing wastewater effluents[J].Water Reuse,2021,11(1):110-121.
[13]	PEREIRA G F,SILVA B F,OLIVEIRA R V,et al.Comparative electrochemical degradation of the herbicide tebuthiuron using a flow cell with a boron-doped diamond anode and identifying degradation intermediates[J].Electrochimica Acta,2017,247:860-870.
[14]	YANG W L,LIU G S,CHEN Y H,et al.Persulfate enhanced electrochemical oxidation of highly toxic cyanide-containing organic wastewater using boron-doped diamond anode[J].Chemosphere,2020,252:126499.
[15]	MIAO D T,LIU G S,WEI Q P,et al.Electro-activated persulfate oxidation of malachite green by boron-doped diamond (BDD) anode:effect of degradation process parameters[J].Water Science & Technology,2020,81(5):925-935.
[16]	LI W,LIU G S,MIAO D T,et al.Electrochemical oxidation of Reactive Blue 19 on boron-doped diamond anode with different supporting electrolyte[J].Journal of Environmental Chemical Engineering,2020,8(4):103997.
[17]	张佳维,王婷,郑彤,等.电流密度对BDD电极电化学矿化吲哚的影响与机制[J].环境科学,2017,38(9):3755-3761.
[18]	李兆欣,甄丽敏,李新洋,等.BDD电极阳极氧化垃圾渗滤液纳滤浓缩液[J].环境工程学报,2014,8(11):4662-4668.
[19]	ZOU J X,PENG X L,LI M,et al.Electrochemical oxidation of COD from real textile wastewaters:kinetic study and energy consumption[J].Chemosphere,2017,171:332-338.
[20]	URTIAGA A,ORTIZ I,ANGLADA A,et al.Kinetic modeling of the electrochemical removal of ammonium and COD from landfill leachates[J].Journal of Applied Electrochemistry,2012,42:779-786.
[21]	ISSOT G B,ANGLADA A,DIMITRIOU-CHRISTIDIS P,et al.Kinetic experiments of electrochemical oxidation of iohexol on BDD electrodes for wastewater treatment[J].Electrochemistry Communications,2012,23:48-51.