IIUM Repository

Optimization of single and mixed cultures for solid state fermentation of municipal sewage sludge

Kabbashi, Nassereldeen Ahmed and Ramachandran, K.B and Fakhru’l-Razi, Ahmadun and Muyibi, Suleyman Aremu (2005) Optimization of single and mixed cultures for solid state fermentation of municipal sewage sludge. International Journal of Environmental Studies, 62 (2). pp. 127-135. ISSN 0020-7233

[img] PDF (Published Article) - Published Version
Restricted to Repository staff only

Download (75kB) | Request a copy


Trichoderma harzianum (Th), Phanerochaete chrysosporium ATCC 24725 (Pc) and Mucor hiemalis (Mh) isolated from three sources: wastewater; sewage sludge; and sludge cake were selected for use as compatible/incompatible single and mixed cultures in the treatment of munici- pal sewage sludge. Five experiments were carried out using (Pc), (Th), a mixture of (Pc/Th), (Mh) and a mixture of (Pc/Mh), in addition to a control where no micro-organism was used. The experiments were used to evaluate their potential performance as compatible/incompatible single and mixed cultures for the treatment of municipal wastewater sewage sludge from treatment plants using solid state fermentation technique (SSF). The results showed that the best micro- organism for composting was found to be (Th) and a mixture of (Pc/Th), while (Pc/Mh) was incompatible culture. The C/N ratio for Th changed from 8.46 to 17.8 at the end of the process, (Ph/Th) increased from 7.21 to 15.9, while (Pc/Mh) increased from 8.49 to 29. The pH value also affected by the fungal cultures which was also changed for (Th) from 4.29 to 6.8, for (Pc/Th) was changed from 7.27 to 6.7 and for (Pc/Mh) was changed from 6.6 to 5.3. Effective results were observed by using mixed culture after 19–21 days compared to other single treatments after 24–32 days.

Item Type: Article (Journal)
Additional Information: 4286/39060
Uncontrolled Keywords: Micro-organisms; pH; C/N ratio; Composting
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD194 Environmental effects of industries and plants
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr Nassereldeen Kabbashi
Date Deposited: 10 Nov 2014 14:55
Last Modified: 10 Nov 2014 14:55
URI: http://irep.iium.edu.my/id/eprint/39060

Actions (login required)

View Item View Item


Downloads per month over past year