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- Title
Treatment of household waste leachates of the city of Mostaganem using the up-flow anaerobic sludge blanket technique.
- Authors
Guermoud, Noreddine; Bouzid, Habib; Benderdouche, Nouredine
- Abstract
The present study investigates the physico-chemical characteristics of the fresh leachate of household waste at the entrance of the technical landfill center (CET-Sour) of the city of Mostaganem. The leachate is treated using the up-flow anaerobic sludge blanket (UASB) technique. The amount of household and similar waste attained about 61,775 tons as of 2021 corresponding to a daily generation of 0.91 kg per capita. This waste was essentially composed of organic matter (63.5%), paper (12.5%), plastic (14.7%), metal (1.1%) and glass (1.5%). The amount of leachate produced during the low and high-water periods in the city of Mostaganem varied between a minimum of 40,870 L in December 2021 and a maximum of 127,930 L in August 2021. Physicochemical analysis of the leachates of the study area shows a high concentration of organic matter with a chemical oxygen demand (COD) of about 24,650 mg·O2/L and a pH of 4.47. Application of the UASB technique under the climatic conditions of the study area to the leachate before direct discharge into the environment resulted in a COD abatement of 94% and a near neutral pH (pH = 6.89). The results obtained show that the UASB technique is suitable for fresh leachate treatment and could be used as an efficient process to reduce pollutant load.
- Subjects
WASTE treatment; UPFLOW anaerobic sludge blanket reactors; LEACHATE; CHEMICAL oxygen demand; BLANKETS
- Publication
Desalination & Water Treatment, 2023, Vol 307, p251
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2023.29916