Comparative study of wastewater treatment efficiency: ozone vs. atmospheric oxygen with a manganese dioxide catalyst
Umbetova S. Abylkassova G. Spitsov D.
1 May 2024IWA Publishing
Water Quality Research Journal
2024#59Issue 262 - 72 pp.
This study aims to validate the wastewater treatment technique and compare the effectiveness of applying an ozone mixture and atmospheric oxygen in the presence of a catalyst (manganese dioxide) with various dosages. A total of 540 replicates were performed, corresponding to different levels of manganese dioxide concentrations during oxygen and ozone delivery (270 repetitions for each of the experiments). The research was carried out using an experimental setup developed by the authors. The maximum efficiency of oxidation processes was observed within 15–30 min after the start of the treatment cycle. The decrease in the level of chemical oxygen demand within the first quarter-hour during ozone treatment was significantly greater compared to atmospheric oxygen treatment (p ≤ 0.05). The method’s efficiency increased to 53% for ozone and 41% for oxygen after 30 min of purification (p ≤ 0.05). Lower catalyst consumption was observed when using an ozone mixture. The tested technology can be recommended for wastewater treatment with high hydrocarbon concentrations. The findings of the study indicated the potential application of ozone treatment with a manganese catalyst for treating waste-water with high hydrocarbon content, thereby fostering the development of more effective water purification methods in the industrial sector.
atmospheric oxygen , catalyst , hydrocarbons , purification , treatment , wastewater
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Department of Water Management and Land Management, Kyzylorda University named after Korkyt Ata, Kyzylorda, Kazakhstan
Department of Chemistry, Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, Kazakhstan
Department of Water Supply and Water Disposal, Moscow State University of Civil Engineering, Moscow, Russian Federation
Department of Water Management and Land Management
Department of Chemistry
Department of Water Supply and Water Disposal
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