Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate

In this study, the removal of color and COD from landfill leachate, together with the electrical energy per order by the ozonation (O3), sonication (US), O3/H2O2, US/H2O2, O3/Fe2+/H2O2, US/Fe2+/H2O2 and O3/US/Fe2+/H2O2 processes was studied. The experimental results indicated that the color removal,...

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Main Authors: Asaithambi, P., Sajjadi, B., Abdul Raman, Abdul Aziz, Daud, Wan Mohd Ashri Wan
Format: Article
Published: Elsevier 2017
Subjects:
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author Asaithambi, P.
Sajjadi, B.
Abdul Raman, Abdul Aziz
Daud, Wan Mohd Ashri Wan
author_facet Asaithambi, P.
Sajjadi, B.
Abdul Raman, Abdul Aziz
Daud, Wan Mohd Ashri Wan
author_sort Asaithambi, P.
collection UM
description In this study, the removal of color and COD from landfill leachate, together with the electrical energy per order by the ozonation (O3), sonication (US), O3/H2O2, US/H2O2, O3/Fe2+/H2O2, US/Fe2+/H2O2 and O3/US/Fe2+/H2O2 processes was studied. The experimental results indicated that the color removal, COD removal and electrical energy per order from the landfill leachate were 100%, 95%, and 1.20 kW h/m3, respectively, at the optimum operating conditions. The obtained values were much higher than that obtained in the O3 and US based advanced oxidation processes. The effects of various experimental parameters such as Fe2+ concentration, H2O2 concentration, solution pH, COD concentration, ozone production and sonication power were studied to identify the optimum conditions leading to maximum removal of color and COD with minimum electrical energy per order by the O3/US/Fe2+/H2O2 process. The synergy index between the O3 and US/Fe2+/H2O2 processes was studied and reported. The results indicated that the combination of O3 and US based advanced oxidation processes could effectively treat the industrial effluents and wastewater.
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spelling um.eprints-176672019-12-06T07:57:30Z http://eprints.um.edu.my/17667/ Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate Asaithambi, P. Sajjadi, B. Abdul Raman, Abdul Aziz Daud, Wan Mohd Ashri Wan TP Chemical technology In this study, the removal of color and COD from landfill leachate, together with the electrical energy per order by the ozonation (O3), sonication (US), O3/H2O2, US/H2O2, O3/Fe2+/H2O2, US/Fe2+/H2O2 and O3/US/Fe2+/H2O2 processes was studied. The experimental results indicated that the color removal, COD removal and electrical energy per order from the landfill leachate were 100%, 95%, and 1.20 kW h/m3, respectively, at the optimum operating conditions. The obtained values were much higher than that obtained in the O3 and US based advanced oxidation processes. The effects of various experimental parameters such as Fe2+ concentration, H2O2 concentration, solution pH, COD concentration, ozone production and sonication power were studied to identify the optimum conditions leading to maximum removal of color and COD with minimum electrical energy per order by the O3/US/Fe2+/H2O2 process. The synergy index between the O3 and US/Fe2+/H2O2 processes was studied and reported. The results indicated that the combination of O3 and US based advanced oxidation processes could effectively treat the industrial effluents and wastewater. Elsevier 2017 Article PeerReviewed Asaithambi, P. and Sajjadi, B. and Abdul Raman, Abdul Aziz and Daud, Wan Mohd Ashri Wan (2017) Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate. Separation and Purification Technology, 172. pp. 442-449. ISSN 1383-5866, DOI https://doi.org/10.1016/j.seppur.2016.08.041 <https://doi.org/10.1016/j.seppur.2016.08.041>. http://dx.doi.org/10.1016/j.seppur.2016.08.041 doi:10.1016/j.seppur.2016.08.041
spellingShingle TP Chemical technology
Asaithambi, P.
Sajjadi, B.
Abdul Raman, Abdul Aziz
Daud, Wan Mohd Ashri Wan
Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate
title Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate
title_full Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate
title_fullStr Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate
title_full_unstemmed Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate
title_short Ozone (O3) and sono (US) based advanced oxidation processes for the removal of color, COD and determination of electrical energy from landfill leachate
title_sort ozone o3 and sono us based advanced oxidation processes for the removal of color cod and determination of electrical energy from landfill leachate
topic TP Chemical technology
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