Skip to content
Research Article Open access CC BY 4.0

Evolution of the Dominant Groups of Micro-organisms during the Composting Process of the Household Refuses from the Dschang Municipality – Cameroon

Temgoua Emile, Ntangmo Tsafack Honorine, Koueudeu Kameni Georges Simplice, Ngnikam Emmanuel

Microbiology Research Journal International · pp. 348–357 · Published 15 Apr 2015

10.9734/BMRJ/2015/16821

Abstract

Aims: This study was aimed at identifying and characterizing the different microbial groups that are involved in the composting process of household waste from the city of Dschang. Study Design: Three compost heaps of household wastes were studied, and a composite sample was collected once every two weeks during the four months period for microbiological analysis. Place and Duration of Study: The Household Waste Composting Pilote Project of the Dschang municipality, during the four months study period. Methodology: The total bacterial and fungal microflora have been identified according to the suspensions-dilutions technique on a specific solid medium, incubated and then counted. The confirmation test for fungi was the methylene blue. Results: Three major groups of microorganisms were present in the compost from household waste from the Dschang municipality that we studied: Bacteria, Actinomycetes and Fungi. The density of bacteria decreases with the phases of the composting while actinomycetes and fungi are increasing. Among the microbial strains identified, some are present in all the composting phases (Pseudomonas, Penicillium, Rhizopus and Nocardia), others disappear in the cooling phase (Mucorspp) and others finally appear only at the phase of maturation (Saccharomycetes).  Conclusion: The evolution of fungal and bacterial diversity during the composting process is parallel to that of their density because the maintenance, the disappearance or appearance of certain strains can be explained by the variation in the temperature, moisture, pH, biodegradable organic matter and competitions between the microbial strains.

Household waste composting bacteria Actinomicetes fungi Dschang municipality

References (15)

  1. 1 The Practical Handbook of Compost Engineering [DOI]
  2. 2 Biodegradation of lignin in a compost environment: a review [DOI]
  3. 3 The biology of composting: A review [DOI]
  4. 4 Microbial characterization during composting of municipal solid waste [DOI]
  5. 5 Evaluation of city refuse compost maturity: a review [DOI]
  6. 6 Compost: Its role, mechanism and impact on reducing soil-borne plant diseases [DOI]
  7. 7 Maturity assessment of compost from municipal solid waste through the study of enzyme activities and water-soluble fractions [DOI]
  8. 8 Microbial Population Dynamics and Enzyme Activities During Composting [DOI]
  9. 9 Composting of Source-Separated Household Organics At Different Oxygen Levels: Gaining an Understanding of the Emission Dynamics [DOI]
  10. 10 Changes in the chemical composition of water-extractable organic matter during composting: Distribution between stable and labile organic matter pools [DOI]
  11. 11 Changes in the microbial community structure during thermophilic composting of manure as detected by the quinone profile method [DOI]
  12. 12 Cocomposting biosolids and municipal organic waste: effects of process management on stabilization and quality [DOI]
  13. 13 The flows of nitrogen, bacteria and viruses from the soil to water compartments are influenced by earthworm activity and organic fertilization (compost vs. vermicompost) [DOI]
  14. 14 Chemical, Physical and Biological Criteria for Maturity in Composts for Organic Farming [DOI]
  15. 15 Co-compostage de boues de station d'épuration et de déchets verts : Nouvelle méthodologie du suivi des transformations de la matière organique

Cited by 1

Municipal solid waste disposal in developing countries: a case study of Wa Municipality, Ghana

P. Bowan · 2018

Related research

Article metrics

Real usage data collected on this platform.

56

Page views

0

PDF downloads

14

Outbound clicks

1

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.