scholarly journals Correction to ‘Organic matter removal from mother liquor of gas field wastewater by electro-Fenton process with the addition of H 2 O 2 : effect of initial pH’

2020 ◽  
Vol 7 (2) ◽  
pp. 200068
Author(s):  
Yan Wang ◽  
Hui-qiang Li ◽  
Li-ming Ren
2019 ◽  
Vol 6 (12) ◽  
pp. 191304 ◽  
Author(s):  
Yan Wang ◽  
Hui-qiang Li ◽  
Li-ming Ren

The electro-Fenton (EF) process was applied to treat mother liquor of gas field wastewater (ML-GFW). The Fe-Fe electrodes were used and H 2 O 2 was added to the EF system. Effect of initial pH on chemical oxygen demand (COD) removal efficiency, specific electrical energy consumption (SEEC), specific electrode plate consumption (SEPC) and organic matter removal mechanism was investigated. The results showed that COD removal efficiency reached the maximum (71.9%) at initial pH of 3 after reaction for 3 h. Besides, considering with the SEEC and SEPC, pH of 3 was also the best choice, at which SEEC was 4.7 kW h kg COD −1 , SEPC was 0.82 kgFe kg COD −1 . Organic matter removal was achieved by two ways: oxidation and flocculation, and oxidation played a major role. With the analysis of GC-MS, the possible degradation pathways of the representative contaminants in the ML-GFW were given.


2010 ◽  
Vol 61 (10) ◽  
pp. 2617-2624 ◽  
Author(s):  
I. Kabdaşlı ◽  
T. Arslan ◽  
I. Arslan-Alaton ◽  
T. Ölmez-Hancı ◽  
O. Tünay

In the present study, the treatment of metal plating wastewater containing complexed metals originating from the nickel and zinc plating process by electrocoagulation (EC) using stainless steel electrodes was explored. In order to improve the organic matter removal efficiency, the effect of H2O2 addition to the electrocoagulation (the combined EC/Fenton process) application was investigated. For this purpose, a wide range of H2O2 concentrations varying between 15 and 230 mM was tested. All EC and EC/Fenton processes were performed at an initial pH of 2.6 and at an optimized current density of 22 mA/cm2. Although up to 30 mM H2O2 addition improved the EC process performance in terms of organic matter abatement, the highest COD and TOC removal efficiencies were obtained for the combined EC/Fenton process in the presence of 20 mM H2O2. Nickel and zinc were completely removed for all runs tested in the present study after pH adjustments. At the optimized operation conditions, the combined EC/Fenton process proved to be an alternative treatment method for the improvement of organic matter reduction as well as complexed metal removal from metal plating industry wastewater.


2011 ◽  
Vol 223 (4) ◽  
pp. 1699-1712 ◽  
Author(s):  
J. Martín-Pascual ◽  
C. López-López ◽  
A. Cerdá ◽  
J. González-López ◽  
E. Hontoria ◽  
...  

2011 ◽  
Vol 25 (4) ◽  
pp. 540-546 ◽  
Author(s):  
Gone Droh Lanciné ◽  
Kamagate Bamory ◽  
Ligban Raymond ◽  
Savane Issiaka ◽  
Biemi Jean

2011 ◽  
Vol 168 (2) ◽  
pp. 629-634 ◽  
Author(s):  
Christian Staaks ◽  
Rolando Fabris ◽  
Todd Lowe ◽  
Christopher W.K. Chow ◽  
John A. van Leeuwen ◽  
...  

1999 ◽  
Vol 33 (6) ◽  
pp. 1387-1398 ◽  
Author(s):  
Patrick Laurent ◽  
Michèle Prévost ◽  
John Cigana ◽  
Patrick Niquette ◽  
Pierre Servais

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