scholarly journals Novel combined IME-O3/OH−/H2O2 process in application for mature landfill leachate treatment

2022 ◽  
Vol 45 ◽  
pp. 102441
Author(s):  
Małgorzata Anna Kucharska ◽  
SeyedKeyvan Mirehbar ◽  
Joanna Agnieszka Ładyńska
Keyword(s):  
Landfill Leachate ◽  
Leachate Treatment ◽  
Mature Landfill Leachate

scholarly journals Mature landfill leachate treatment by denitrification and ozonation

2011 ◽  
Vol 46 (1) ◽  
pp. 148-153 ◽  
Author(s):  
Susana Cortez ◽  
Pilar Teixeira ◽  
Rosário Oliveira ◽  
Manuel Mota
Keyword(s):  
Landfill Leachate ◽  
Leachate Treatment ◽  
Mature Landfill Leachate

scholarly journals Field-scale performance of microelectrolysis-Fenton oxidation process combined with biological degradation and coagulative precipitation for landfill leachate treatment

2019 ◽  
Vol 118 ◽  
pp. 04017
Author(s):  
Yuan-Yuan Zhao ◽  
You-Ze Xu ◽  
Shuang Zhou ◽  
Jiao-Mei Liu ◽  
Yingxiang Cheng ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Industrial Application ◽  
Oxidation Process ◽  
Dominant Role ◽  
Full Scale ◽  
Fenton Oxidation ◽  
Biological Degradation ◽  
Leachate Treatment ◽  
Fenton Oxidation Process ◽  
Mature Landfill Leachate

In order to verify the feasibility of Fe/C microelectrolysis-Fenton oxidation for mature landfill leachate treatment in industrial application, this study conducted the treatment processes at full-scale by physicochemical and spectral characterization. The full-scale studies showed that 48.17% of the dissolved organic carbon (DOC) and 42.27% of the dissolved organic nitrogen (DON) were removed by the microelectrolysis-Fenton oxidation process, respectively. Spectra analysis further suggested that the mature leachate was mainly composed of tryptophan-like and fulvic-like compounds. The combination of microelectrolysis and Fenton oxidation efficiently decomposed the aromatic C=C into carboxyl-C and decreased the molecular size of DOC, resulting in a dramatic reduce (97.1%-98.3%) of the fluorescence intensity. The DON removal by microelectrolysis-Fenton oxidation likely associated with the NH2-decomposition of tryptophan-like and aromatic compounds into NO3-N. The tryptophan-like compounds may play a dominant role in Ba binding, while Pb and Cd were likely bound to both the tryptophan-like and fulvic-like compounds. Above 60% of the heavy metals were removed in the microelectrolysis-Fenton oxidation section. Results above confirmed the effectiveness of Fe/C microelectrolysis-Fenton oxidation for mature landfill leachate treatment in industrial application.

scholarly journals Combining Coagulation and Electrocoagulation with UVA-LED Photo-Fenton to Improve the Efficiency and Reduce the Cost of Mature Landfill Leachate Treatment

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6425
Author(s):  
Javier Tejera ◽  
Daphne Hermosilla ◽  
Antonio Gascó ◽  
Carlos Negro ◽  
Ángeles Blanco
Keyword(s):  
Landfill Leachate ◽  
Treatment Cost ◽  
Great Influence ◽  
Leachate Treatment ◽  
Dissolved Iron ◽  
Pre Treatment ◽  
Cost Efficient ◽  
Mature Landfill Leachate ◽  
Electro Coagulation ◽  
Total Dissolved Iron

This study focused on the reduction of the treatment cost of mature landfill leachate (LL) by enhancing the coagulation pre-treatment before a UVA-LED photo-Fenton process. A more efficient advanced coagulation pretreatment was designed by combining conventional coagulation (CC) and electro-coagulation (EC). Regardless of the order in which the two coagulations were applied, the combination achieved more than 73% color removal, 80% COD removal, and 27% SUVA removal. However, the coagulation order had a great influence on both final pH and total dissolved iron, which were key parameters for the UVA-LED photo-Fenton post-treatment. CC (pH = 5; 2 g L−1 of FeCl36H2O) followed by EC (pH = 5; 10 mA cm−2) resulted in a pH of 6.4 and 100 mg L−1 of dissolved iron, whereas EC (pH = 4; 10 mA cm−2) followed by CC (pH = 6; 1 g L−1 FeCl36H2O) led to a final pH of 3.4 and 210 mg L−1 dissolved iron. This last combination was therefore considered better for the posterior photo-Fenton treatment. Results at the best cost-efficient [H2O2]:COD ratio of 1.063 showed a high treatment efficiency, namely the removal of 99% of the color, 89% of the COD, and 60% of the SUVA. Conductivity was reduced by 17%, and biodegradability increased to BOD5:COD = 0.40. With this proposed treatment, a final COD of only 453 mg O2 L−1 was obtained at a treatment cost of EUR 3.42 kg COD−1.

Mature landfill leachate treatment from an abandoned municipal waste disposal site

2001 ◽  
Vol 18 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Joon Moo Hur ◽  
Jong An Park ◽  
Bu Soon Son ◽  
Bong Gi Jang ◽  
Seong Hong Kim
Keyword(s):  
Waste Disposal ◽  
Landfill Leachate ◽  
Municipal Waste ◽  
Disposal Site ◽  
Waste Disposal Site ◽  
Leachate Treatment ◽  
Mature Landfill Leachate

Coupling anammox and advanced oxidation-based technologies for mature landfill leachate treatment

2013 ◽  
Vol 258-259 ◽  
pp. 27-34 ◽  
Author(s):  
A. Anfruns ◽  
J. Gabarró ◽  
R. Gonzalez-Olmos ◽  
S. Puig ◽  
M.D. Balaguer ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Advanced Oxidation ◽  
Leachate Treatment ◽  
Mature Landfill Leachate
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