scholarly journals The removal of organic compounds from landfill leachate using ozone-based advanced oxidation processes

2018 ◽  
Vol 45 ◽  
pp. 00046
Author(s):  
Jacek Leszczyński ◽  
Jolanta Walery Maria
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Removal Efficiency ◽  
Landfill Leachate ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Uv Absorbance ◽  
Leachate Treatment ◽  
Oxidation Processes ◽  
Ozone Dose

In this study, the application of ozonation and ozonation with hydrogen peroxide processes for landfill leachate treatment was investigated. The effluents were characterized by COD 710 mgO2/dm3 and BOD5 72 mg O2/dm3. According to the adopted indicators, the determined BOD/COD ratio of 0.1 in raw leachates indicates a stabilized landfill. Ozone was applied at doses of 0.15 - 0.6 gO3/dm3, and hydrogen peroxide at such doses to keep the weight ratios of H2O2/O3 0.4 - 1.6. The maximum COD and UV absorbance removal was respectively 29% and 51% by applying a high ozone dose of 0.6 gO3/dm3. After oxidation, the ratio of BOD/COD was increased from 0.1 up to 0.3. It has been shown that by using hydrogen peroxide in ozonation, organic compounds expressed as COD can be efficiently removed from the effluents. The best conditions for the H2O2/O3 process were obtained with a H2O2/O3 ratio of 0.8 and ozone dose of 0.6 gO3/dm3. Under these conditions, the removal efficiency of COD was 46%.

scholarly journals Comparison of Landfill Leachate Treatment Efficiency Using the Advanced Oxidation Processes

2013 ◽  
Vol 39 (2) ◽  
pp. 107-115 ◽  
Author(s):  
Barbara Pieczykolan ◽  
Izabela Płonka ◽  
Krzysztof Barbusiński ◽  
Magdalena Amalio-Kosel
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Advanced Oxidation Processes ◽  
Potassium Dichromate ◽  
Advanced Oxidation ◽  
Fenton’S Reagent ◽  
Nitrogen And Phosphorus ◽  
Leachate Treatment ◽  
Fenton's Reagent ◽  
Oxidation Processes

Abstract Treatment of leachate from an exploited since 2004 landfill by using two methods of advanced oxidation processes was performed. Fenton’s reagent with two different doses of hydrogen peroxide and iron and UV/H2O2 process was applied. The removal efficiency of biochemically oxidizable organic compounds (BOD5), chemically oxidizable compounds using potassium dichromate (CODCr) and nutrient (nitrogen and phosphorus) was examined. Studies have shown that the greatest degree of organic compounds removal expressed as a BOD5 index and CODCr index were obtained when Fenton’s reagent with greater dose of hydrogen peroxide was used - efficiency was respectively 72.0% and 69.8%. Moreover, in this case there was observed an increase in the value of ratio of BOD5/CODCr in treated leachate in comparison with raw leachate. Application of Fenton’s reagent for leachate treatment also allowed for more effective removal of nutrients in comparison with the UV/H2O2 process.

Identification of organic compounds in landfill leachate treated by advanced oxidation processes

2017 ◽  
Vol 40 (6) ◽  
pp. 730-741 ◽  
Author(s):  
Ana Paula Jambers Scandelai ◽  
Eliane Sloboda Rigobello ◽  
Beatriz Lopes Corso de Oliveira ◽  
Célia Regina Granhen Tavares
Keyword(s):  
Organic Compounds ◽  
Landfill Leachate ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Processes

Advanced Oxidation Processes (AOPs) in Landfill Leachate Treatment

2019 ◽  
pp. 355-383
Author(s):  
Mohamad Anuar Kamaruddin
Keyword(s):  
Landfill Leachate ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Sanitary Landfill ◽  
Biological Degradation ◽  
High Concentration ◽  
Leachate Treatment ◽  
Oxidation Processes ◽  
Acceptable Method ◽  
High Concentrations

Sanitary landfilling is the most acceptable method to eliminate solid urban wastes. However, it is known that sanitary landfill generates large amount of heavily polluted leachate. High concentrations of recalcitrant organics make its degradation more complicated and high concentration of organic material can be toxic and reduce bioremediation process. Landfill leachate treatment by advanced oxidation processes (AOPs) have been intensively studied with high successful rate for removing refractory pollutants (biological degradation) from leachate. Fenton reaction which is one basic AOPs is based on the addition of hydrogen peroxide to the leachate in the presence of ferrous salt as a catalyst. Because of that, many improvement and development of new Fenton-based methods have been reported in the literature. This review discussed the application of Fenton and related processes in terms of wide application in landfill leachate treatment. The effects of various operating parameters and their optimum ranges for organics contaminant removed were also discussed.

scholarly journals Landfill Leachate Treatment Using Coupled, Sequential Coagulation-flocculation and Advanced Oxidation Processes

2017 ◽  
Vol 3 (4) ◽  
pp. 526-537
Author(s):  
José L. Álvarez Cruz ◽  
◽  
Karla E. Campos Díaz ◽  
Erick R. Bandala ◽  
Felipe López Sánchez ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Leachate Treatment ◽  
Oxidation Processes

An Introduction to Advanced Oxidation Processes (AOP) for Destruction of Organics in Wastewater

1992 ◽  
Vol 27 (1) ◽  
pp. 1-22 ◽  
Author(s):  
J. H. Carey
Keyword(s):  
Hydrogen Peroxide ◽  
Titanium Dioxide ◽  
Wastewater Treatment ◽  
Organic Compounds ◽  
Hydroxyl Radicals ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Processes ◽  
Oxidation Of Organic Compounds ◽  
Organic Wastewater

Abstract Various processes that have been suggested for the oxidation of organic compounds in wastewater are summarized. The most widely applicable are based on generation of hydroxyl radicals via the photolysis of hydrogen peroxide, ozone and titanium dioxide. Other methods of generating hydroxyl radicals and other oxidants, as well as other methods of oxidation that have been suggested for organic wastewater treatment are also discussed.

Advanced Oxidation Processes: Process Mechanisms, Affecting Parameters and Landfill Leachate Treatment

2016 ◽  
Vol 88 (11) ◽  
pp. 2047-2058 ◽  
Author(s):  
Su‐Huan Kow ◽  
Muhammad Ridwan Fahmi ◽  
Che Zulzikrami Azner Abidin ◽  
Ong Soon‐An
Keyword(s):  
Landfill Leachate ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Leachate Treatment ◽  
Oxidation Processes
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