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:: Volume 4, Issue 13 (3-2014) ::
NCMBJ 2014, 4(13): 77-83 Back to browse issues page
Survey applicability of microbial dynamic and enzyme activity instead conventional methods in determined of maturity of compost
Fatemeh Nejatzadeh , Fathollah Gholami-Borujeni
Department of Environmental Health, School of Health, Urmia University of Medical Science. , gholami_b_f@yahoo.com
Abstract:   (7915 Views)
Aim and Background: investigation was carried out in the laboratory to find out the microbial dynamics and enzyme activities of amylase, protease, phosphatase and cellulase during rapid and conventional composting of municipal solid waste (MSW). 
Materials and Methods: To survey of maturity of composting process, application of microbial dynamic and enzyme were carried out. Various treatments such as aeration (A), addition of chemical agents (glucose (G) and acetic acid (AA) and application of cellulolytic microbial (M) inoculum (Phanerochaete chrysosporium and Trichoderma reesei) were used to facilitate the decomposition of MSW. 
Results: The result of the present investigation revealed that the degradation of organic substrates were quick (within 9– 12 days) in case of rapid composting as indicated by the reduction (below 20) in carbon to nitrogen ratio (C/N). This ration was used as maturity index of composting. Whereas, normal composting took more than 20 days to attain C/N ratio of below 20. Generation of selected enzyme (amylase, protease, phosphatase andcellulase) is good indicator to specific degradation of unstable organic matter in municipal solid waste. Conclusion: According to this study, controlled composting of municipal solid waste was done rapidly in comparison with conventional composting systems. Methods of application of microbial dynamics and enzyme activity instead of conventional methods to determined of maturity of compost are stringent.
Keywords: Compost, Enzyme activities, Microbial Dynamic, Municipal solid waste, Microbial biomass
Full-Text [PDF 381 kb]   (1867 Downloads)    
Type of Study: Research Article | Subject: Microbiology
Received: 2014/04/22 | Accepted: 2014/04/22 | Published: 2014/04/22
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Nejatzadeh F, Gholami-Borujeni F. Survey applicability of microbial dynamic and enzyme activity instead conventional methods in determined of maturity of compost. NCMBJ. 2014; 4 (13) :77-83
URL: http://ncmbjpiau.ir/article-1-482-en.html


Volume 4, Issue 13 (3-2014) Back to browse issues page
مجله تازه های بیوتکنولوژی سلولی - مولکولی New Cellular and Molecular Biotechnology Journal
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