Electrochemical oxidation of humic acid and sanitary landfill leachate: Influence of anode material, chloride concentration and current density

被引：115

作者：

Fernandes, A. ^{[1
]}

Santos, D.

Pacheco, M. J.

Ciriaco, L.

Lopes, A.

机构：

[1] Univ Beira Interior, FibEnTech MTP Unit, P-6201001 Covilha, Portugal

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2016年 / 541卷

关键词：

Sanitary landfill leachate; Humic acid; Anodic oxidation; Ti/Pt/PbO2; Ti/Pt/SnO2-Sb2O4; DIAMOND ELECTRODES; AMMONIUM; REMOVAL; TI/PT/SNO2-SB2O4; ELECTROOXIDATION; PERFORMANCE; TI/PT/PBO2;

D O I：

10.1016/j.scitotenv.2015.09.052

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The influence of applied current density and chloride ion concentration on the ability of Ti/Pt/PbO2 and Ti/Pt/SnO2-Sb2O4 anodes for the electrochemical oxidation of humic acid and sanitary landfill leachate samples was assessed and compared with that of BDD anode. For the experimental conditions used, results show that both organic load and nitrogen removal rates increase with the applied current density and chloride ion concentration, although there is an optimum COD/[Cl-](0) ratio below which there is no further increase in COD removal. Metal oxide anodes present a similar performance to that of BDD, being the results obtained for Ti/Pt/PbO2 slightly better than for Ti/Pt/SnO2-Sb2O4. Contrary to BDD, Ti/Pt/PbO2 promotes lower nitrate formation and is the most suitable material for total nitrogen elimination. The importance of the optimum ratio of Cl-/COD/NH4+ initial concentrations is discussed. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：282 / 291

页数：10

共 34 条

[1] On the performance of Fe and Fe,F doped Ti-Pt/PbO2 electrodes in the electrooxidation of the Blue Reactive 19 dye in simulated textile wastewater [J].

Andrade, Leonardo S. ;

Ruotolo, Luis Augusto M. ;

Rocha-Filho, Romeu C. ;

Bocchi, Nerilso ;

Biaggio, Sonia R. ;

Iniesta, Jesus ;

Garcia-Garcia, Vicente ;

Montiel, Vicente .

CHEMOSPHERE, 2007, 66 (11) :2035-2043

[2] Electrochemical oxidation of landfill leachates at pilot scale: evaluation of energy needs [J].

Anglada, A. ;

Ortiz, D. ;

Urtiaga, A. M. ;

Ortiz, I. .

WATER SCIENCE AND TECHNOLOGY, 2010, 61 (09) :2211-2217

[3] Boron-doped diamond anodic treatment of landfill leachate: Evaluation of operating variables and formation of oxidation by-products [J].

Anglada, Angela ;

Urtiaga, Ane ;

Ortiz, Inmaculada ;

Mantzavinos, Dionissios ;

Diamadopoulos, Evan .

WATER RESEARCH, 2011, 45 (02) :828-838

[4] Laboratory and pilot plant scale study on the electrochemical oxidation of landfill leachate [J].

Anglada, Angela ;

Urtiaga, Ana M. ;

Ortiz, Inmaculada .

JOURNAL OF HAZARDOUS MATERIALS, 2010, 181 (1-3) :729-735

[5] Contributions of electrochemical oxidation to waste-water treatment: fundamentals and review of applications [J].

Anglada, Angela ;

Urtiaga, Ane ;

Ortiz, Inmaculada .

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2009, 84 (12) :1747-1755

[6] Pilot Scale Performance of the Electro-Oxidation of Landfill Leachate at Boron-Doped Diamond Anodes [J].

Anglada, Angela ;

Urtiaga, Ane ;

Ortiz, Inmaculada .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (06) :2035-2040

[7]

Baird R.B., 2005, Standard methods for the examination of water and wastewater

[8] Landfill leachate treatment by electrochemical oxidation [J].

Bashir, Mohammed J. K. ;

Isa, Mohamed Hasnain ;

Kutty, Shamsul Rahman Mohamed ;

Bin Awang, Zarizi ;

Aziz, Hamidi Abdul ;

Mohajeri, Soraya ;

Farooqi, Izharul Haq .

WASTE MANAGEMENT, 2009, 29 (09) :2534-2541

[9]

Bhalla B., 2013, INT J RES ENG TECHNO, V2, P223, DOI [10.15623/ijret.2013.0208037, DOI 10.15623/IJRET.2013.0208037]

[10] Decontamination of wastewaters containing synthetic organic dyes by electrochemical methods. An updated review [J].

Brillas, Enric ;

Martinez-Huitle, Carlos A. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 166 :603-643

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