Electrochemical Treatment of Landfill Leachate to Remove Chromium (VI) using Ni3N and NiO NPs anodes

2021 ◽  
pp. ArticleID:210710
Author(s):  
Chunhong Zhang ◽  
Keyword(s):  
Landfill Leachate ◽  
Electrochemical Treatment ◽  
Chromium Vi ◽  
Nio Nps

Electrochemical Treatment of Landfill Leachate:  Oxidation at Ti/PbO2and Ti/SnO2Anodes

1998 ◽  
Vol 32 (22) ◽  
pp. 3570-3573 ◽  
Author(s):  
Raffaello Cossu ◽  
Anna M. Polcaro ◽  
Maria C. Lavagnolo ◽  
Michele Mascia ◽  
Simonetta Palmas ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Electrochemical Treatment

Introduction to Leachate Treatment

2015 ◽  
pp. 200-218
Author(s):  
Amin Mojiri ◽  
Siti Fatihah Binti Ramli ◽  
Wan Izatul Saadiah Binti Wan Kamar
Keyword(s):  
Landfill Leachate ◽  
Membrane Filtration ◽  
Chemical Precipitation ◽  
Electrochemical Treatment ◽  
Chemical Oxidation ◽  
Treatment Technique ◽  
Leachate Treatment ◽  
Exchange Adsorption ◽  
Suitable Treatment ◽  
Physical And Chemical

Leachate is created while water penetrates through the waste in a landfill, carrying some forms of pollutants. The goal of this chapter is the introduction to leachate treatment. Biological, physical, and chemical treatments of leachate are the most common methods. The biological techniques in leachate treatment are studied. The physical-chemical ways for landfill leachate treatment like chemical precipitation, chemical oxidation, coagulation–flocculation, membrane filtration, ion exchange, adsorption and electrochemical treatment are studied. The landfill leachate properties, technical applicability and constraints, effluent discharge alternatives, cost-effectiveness, regulatory requirements and environmental impact are important factors for selection of the most suitable treatment technique for landfill leachate treatment.

Characterization and electrochemical treatment of landfill leachate

2012 ◽  
Vol 47 (3) ◽  
pp. 462-469 ◽  
Author(s):  
Visnja Orescanin ◽  
Robert Kollar ◽  
Damir Ruk ◽  
Karlo Nad
Keyword(s):  
Landfill Leachate ◽  
Electrochemical Treatment

Electrochemical treatment of mature landfill leachate using Ti/RuO2–IrO2 and Al electrode: optimization and mechanism

RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 47509-47519 ◽  
Author(s):  
Juan Li ◽  
Zhao-hui Yang ◽  
Hai-yin Xu ◽  
Pei-pei Song ◽  
Jing Huang ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Landfill Leachate ◽  
Electrochemical Treatment ◽  
Oxidation Technology ◽  
Mature Landfill Leachate

Today, improving the elimination of refractory pollutants in landfill leachate through electrochemical oxidation technology has attracted considerable attention.

A combined CaO/electrochemical treatment of the landfill leachate from different sanitary landfills in Croatia

2012 ◽  
Vol 47 (12) ◽  
pp. 1749-1758 ◽  
Author(s):  
Visnja Orescanin ◽  
Robert Kollar ◽  
Damir Ruk ◽  
Karlo Nad ◽  
Nenad Mikulic
Keyword(s):  
Landfill Leachate ◽  
Electrochemical Treatment ◽  
Sanitary Landfills

scholarly journals Degradation of Matured Landfill Leachate by Electro Fenton Treatment and Optimization by Response Surface Methodology

2018 ◽  
Vol 7 (3.8) ◽  
pp. 101
Author(s):  
Minimol Pieus T ◽  
Soloman P.A
Keyword(s):  
Landfill Leachate ◽  
Biological Treatment ◽  
Solid Waste Management ◽  
Electrochemical Treatment ◽  
Ammonia Nitrogen ◽  
Fenton Process ◽  
The Earth ◽  
Novel Approach ◽  
The World ◽  
Optimum Working

The landfill is the most widely utilized approach for solid waste management over the world. The fluid side-effect of the procedure, leachate, is a genuine danger to the earth. The ordinary biological treatment of matured landfill leachate is restricted by the presence of toxic contaminants and recalcitrant organics. A novel approach for management of landfill leachate by Electro Fenton process is researched here for the technical feasibility. The experimental outcome demonstrated that there was extensive reduction in COD-78.2%, Ammonia nitrogen-42.0%, Chloride-63.5%, Sulfate-60.0%, Sulfide-57.3%, and Phosphate-62.4% at the optimum working state of pH-2.85, Current density-140.5 A/m2, H2O2 dosage- 53% of theoretical value, Reaction time-44min. The biodegradability index was enhanced from 0.21 to 0.43 because of the treatment. The examination not just uncovers the likelihood of degradation of contaminants by giving a mild electrochemical treatment additionally extends the possibility of utilizing the approach as a compelling pretreatment for its biological treatment.  

Introduction to Leachate Treatment

2020 ◽  
pp. 157-176
Author(s):  
Amin Mojiri ◽  
Siti Fatihah Binti Ramli ◽  
Wan Izatul Saadiah Binti Wan Kamar
Keyword(s):  
Landfill Leachate ◽  
Membrane Filtration ◽  
Chemical Precipitation ◽  
Electrochemical Treatment ◽  
Chemical Oxidation ◽  
Treatment Technique ◽  
Leachate Treatment ◽  
Exchange Adsorption ◽  
Suitable Treatment ◽  
Physical And Chemical

Leachate is created while water penetrates through the waste in a landfill, carrying some forms of pollutants. The goal of this chapter is the introduction to leachate treatment. Biological, physical, and chemical treatments of leachate are the most common methods. The biological techniques in leachate treatment are studied. The physical-chemical ways for landfill leachate treatment like chemical precipitation, chemical oxidation, coagulation–flocculation, membrane filtration, ion exchange, adsorption and electrochemical treatment are studied. The landfill leachate properties, technical applicability and constraints, effluent discharge alternatives, cost-effectiveness, regulatory requirements and environmental impact are important factors for selection of the most suitable treatment technique for landfill leachate treatment.

A kinetic model that describes removal of chromium VI from rinsing waters of the metal finishing industry by electrochemical processes

2000 ◽  
Vol 42 (5-6) ◽  
pp. 55-61 ◽  
Author(s):  
S.A. Martínez ◽  
M.G. Rodríguez ◽  
C. Barrera
Keyword(s):  
Reaction Rate ◽  
Treatment Time ◽  
Electrochemical Treatment ◽  
Ferrous Ions ◽  
Chromium Vi ◽  
Electrochemical Processes ◽  
Iron Salts ◽  
Sludge Characterization ◽  
Characterization Study ◽  
Electrode Passivation

A study was made to remove Chromium VI (Cr6+), present in large quantities in the rinsing waters from the plating industry, using electrochemical treatment. Large amount of Cr6+ are found. It was found that the reaction rate followed a variable kinetic order at concentrations up to 1700 mg Cr6+/L. It was also noticed that Cr6+ reduction depended on the ferrous ions (Fe2+) released at the anode, the cathode reactions and the acidic corrosion on electrodes. Iron salts produced electrode passivation and it caused a 50% increase in treatment time and power requirements. Eliminating the salt formation at the anode could reduce this effect. Using electrochemical processes it is possible to reuse treated waters in the rising stages of the plating industry owing to the fact that final Cr6+ concentration is less than 0.5 mg/L. Finally, a sludge characterization study revealed that residue generated in the process is not considered dangerous according to Mexican environmental protection standards.

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