Statistical analysis of optimum Fenton oxidation conditions for landfill leachate treatment

2013 ◽  
Vol 33 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Shrawan K. Singh ◽  
Walter Z. Tang
Keyword(s):  
Statistical Analysis ◽  
Landfill Leachate ◽  
Fenton Oxidation ◽  
Leachate Treatment

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 Evaluation of influence of coagulation/flocculation and Fenton oxidation with iron on landfill leachate treatment

2019 ◽  
Vol 45 (1) ◽  
Author(s):  
YOSR SMAOUI ◽  
SALMA MSEDDI ◽  
NAJLA AYADI ◽  
SAMI SAYADI ◽  
JALEL BOUZID
Keyword(s):  
Landfill Leachate ◽  
Fenton Oxidation ◽  
Leachate Treatment

Landfill leachate treatment by sequential combination of activated persulfate and Fenton oxidation

2018 ◽  
Vol 81 ◽  
pp. 220-225 ◽  
Author(s):  
Jefferson E. Silveira ◽  
Juan A. Zazo ◽  
Gema Pliego ◽  
Jose A. Casas
Keyword(s):  
Landfill Leachate ◽  
Fenton Oxidation ◽  
Leachate Treatment ◽  
Sequential Combination ◽  
Activated Persulfate

FENTON AND PHOTO-FENTON OXIDATION OF SULFIDIC SPENT CAUSTIC: A COMPARATIVE STUDY BASED ON STATISTICAL ANALYSIS

2014 ◽  
Vol 13 (3) ◽  
pp. 531-538 ◽  
Author(s):  
Mohd Ariffin Abu Hassan ◽  
Sharifah Hanis Yasmin Sayid Abdullah ◽  
Zainura Zainon Noor ◽  
Siti Fadilah Md Noor ◽  
Azmi Aris
Keyword(s):  
Statistical Analysis ◽  
Comparative Study ◽  
Fenton Oxidation ◽  
Spent Caustic

scholarly journals Application of Electrocoagulation with a New Steel-Swarf-Based Electrode for the Removal of Heavy Metals and Total Coliforms from Sanitary Landfill Leachate

2021 ◽  
Vol 11 (11) ◽  
pp. 5009
Author(s):  
Mayk Teles de Oliveira ◽  
Ieda Maria Sapateiro Torres ◽  
Humberto Ruggeri ◽  
Paulo Scalize ◽  
Antonio Albuquerque ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Landfill Leachate ◽  
Lower Cost ◽  
Sanitary Landfill ◽  
Leachate Treatment ◽  
Removal Of Heavy Metals ◽  
Waste Characteristics ◽  
Electrode Passivation ◽  
Steel Swarf ◽  
Sanitary Landfill Leachate

Sanitary landfill leachate (LL) composition varies according to climate variables variation, solid waste characteristics and composition, and landfill age. Leachate treatment is essentially carried out trough biological and physicochemical processes, which have showed variability in efficiency and appear a costly solution for the management authorities. Electrocoagulation (EC) seems a suitable solution for leachate treatment taking into account the characteristics of the liquor. One of the problems of EC is the electrode passivation, which affects the longevity of the process. One solution to this problem could be the replacement of the electrode by one made of recyclable material, which would make it possible to change it frequently and at a lower cost. The objective of the present work was to evaluate the removal of heavy metals (As, Ba, Cd, Cr, Cu, Fe, Pb, Mn, Ni, Se and Zn) and coliforms from a LL by EC using electrodes made from steel swarf (SfE) up to 8 h. Removal efficiencies of detected heavy metals were 51%(Cr), 59%(As), 71%(Cd), 72%(Zn), 92%(Ba), 95%(Ni) and >99%(Pb). The microbial load of coliforms in leachate was reduced from 10.76 × 104 CFU/mL (raw leachate) to less than 1 CFU/mL (after treatment with SfE) (i.e., approximately 100% reduction). The use of SfE in EC of LL is very effective in removing heavy metals and coliforms and can be used as alternative treatment solution for such effluents.

The evolving trends of landfill leachate treatment research over the past 45 years

2021 ◽  
Author(s):  
Mir Amir Mohammad Reshadi ◽  
Sajad Soleymani Hasani ◽  
Morteza Nazaripour ◽  
Gordon McKay ◽  
Alireza Bazargan
Keyword(s):  
Landfill Leachate ◽  
Leachate Treatment ◽  
The Past ◽  
Treatment Research
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