ENIVRONMENT ASIA

Volume 12, No. 01, Month JANUARY, Year 2019, Pages 154 - 161

Comparison and evaluation of different leachate treatment processes for chemical oxygen demand and color removals - statistical assessment

Salem S. Abu Amr, Abbas F. M. Alkarkhi, Yusri Yusup, and Mohammed J.K. Bashir

Abstract Download PDF

The performance of seven oxidation treatments on stabilized landfill leachate namely; O3, Fenton, Fenton followed by O3, persulfate, persulfate followed by O3, simultaneous O3/Fenton, and simultaneous O3/persulfate were evaluated and compared. The study aims to assess the variation between all the seven oxidation treatments with regards to COD and color removal. The analysis of variance (ANOVA) and Tukey’s test showed that there were significant differences between the performances of the treatments. The O3 treatment removed the lowest COD and color while the simultaneous O3/Fenton, Fenton followed by O3, simultaneous O3/persulfate and persulfate followed by O3 removed the highest. Hence, these treatments are recommended to remove organics from stabilized landfill leachate.

Keywords

Stabilized leachate; Treatment; Oxidation; Analysis of variance (ANOVA); Tukey’s test.

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