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3169

Microbial Populations and Enzymatic Activities as Parameters for Characterization of the Composting Process

Article

Last updated: 01 Jan 2025

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Subjects

-

Tags

Environmental soil & water Chemistry

Abstract

Changes in microbial populations and enzymatic activities during composting process of municipal solid wastes were investigated. Changes in some physical and chemical parameters were also determind. The results showed that the temperature reached the maximum (57.5 oC) after 15 days and then decreased. Marked changes in pH value were found. The organic matter (OM) decreased from 61.52% to 48.92% and the the loss in OM reached to 40.1%. The carbon/nitrogen C/N ratio decreased from 25.70 to 11.82. The populations of mesophilic bacteria, actinomycetes, and fungi were greatly decreased with time. The thermophilic bacteria reached the maximum after 30 days and then decreased. The thermophilic actinomycetes reached the maximum after 10 days and then decreased with time until 60 days and disappeared after that. The population of thermophilic fungi reached the maximum after 10 days and disappeared after that. The activity of á-amylase, carboxymethylcellulase (CMCase) and xylanase enzymes was increased and reached the maximum after 10, 20 and 30 days respectively then was decreased. 

DOI

10.21608/asejaiqjsae.2012.3169

Authors

First Name

A. I.

Last Name

A. I. Khalil

MiddleName

-

Affiliation

Department of Environmental Studies, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt.

Email

khalilaii@yahoo.com

City

-

Orcid

-

First Name

A. R.

Last Name

Bin Ali

MiddleName

-

Affiliation

Department of Environmental Sciences, Faculty of Natural Resources and Environmental Sciences, University of Omar Al-Mukhtar, Al-Bayda, Libya.

Email

-

City

-

Orcid

-

First Name

M. M.

Last Name

Yaqub

MiddleName

-

Affiliation

Department of Environmental Sciences, Faculty of Natural Resources and Environmental Sciences, University of Omar Al-Mukhtar, Al-Bayda, Libya.

Email

-

City

-

Orcid

-

Volume

33

Article Issue

October-December

Related Issue

553

Issue Date

2012-10-01

Receive Date

2012-11-01

Publish Date

2012-12-30

Page Start

314

Page End

325

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 33_Issue October-December_Pages 314-325.pdf

PDF . 643.9kB

Link

https://asejaiqjsae.journals.ekb.eg/article_3169.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=3169

Order

13

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Microbial Populations and Enzymatic Activities as Parameters for Characterization of the Composting Process

Details

Type

Article

Created At

22 Jan 2023