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Study of biological parameters during composting of sewage sludge

Kabbashi, Nassereldeen Ahmed and Fakhru’l-Razi, Ahmadun and Azni, Idris (2003) Study of biological parameters during composting of sewage sludge. Brunei Darussalam Journal of Technology and Commerce, 3 (1). pp. 47-52. ISSN 1605-2285

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Abstract

The development of appropriate strategies for the treatment and disposal of sewage sludge is a major problem for all countries throughout the World. Sludge treatment and disposal not only represents about half of the total costs of municipal wastewater collection, but it is also strongly regulated, more so than almost and other forms of waste. The sewage sludge used in this study was collected from Taman Sri Nanding and Taman Koperasi Indah Water Konsortium treatment plants Malaysia. The sludges had a higher moisture content around 80% to 82% and a low C/N ratio of 7 to 8.5. Both sludges had more or less similar characteristics. However pH of sludge from Taman Sri Nanding was lower than that of Taman Koperasi. Sawdust had a low moisture content of 10-20% and a high C/N ratio ranging from 166.6 to 285. Hence sawdust was homogenized with the sludge to increase the C/N ratio of the sludge, which inoculated with a mixture of P.chrysosporium and Trichoderima harzinum. This also reduced the moisture content to the optimal level for composting. In a medium scale horizontal drum bioreactor occurred for 21 days and one month curing, the biological parameters were monitored to evaluate the effect of sawdust on the composting process.

Item Type: Article (Journal)
Additional Information: 4286/39025
Uncontrolled Keywords: sewage sludge, composting, sawdust, P.chrysosporium and Trichoderma harzianum, horizontal drum bioreactor, germination index
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD159 Municipal engineering
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr Nassereldeen Kabbashi
Date Deposited: 08 Nov 2014 15:18
Last Modified: 08 Nov 2014 15:18
URI: http://irep.iium.edu.my/id/eprint/39025

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