Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Microbial characterization during composting of municipal solid waste.

A Hassen1, K Belguith, N Jedidi

  • 1Laboratoire Eau et Environnement, Institut National de Recherche, Scientifique et Technique, Cité Mahrajène, Tunis, Tunisia.

Bioresource Technology
|October 17, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

First Measurement of Time-Dependent CP Violation in the Flavor-Changing Neutral-Current Decay B^{0}→K_{S}^{0}μ^{+}μ^{-}.

Physical review letters·2026
Same author

Measurement of the Top-Quark Production Cross Section and Charge Asymmetry at LHCb.

Physical review letters·2026
Same author

Searches for B^{0}→K^{+}π^{-}τ^{+}τ^{-} and B_{s}^{0}→K^{+}K^{-}τ^{+}τ^{-} Decays.

Physical review letters·2026
Same author

First Evidence of the B_{s}^{0}→K^{-}π^{+}γ Decay.

Physical review letters·2026
Same author

Precision Measurement of CP Violation and Branching Fractions in B^{±}→K_{S}^{0}h^{±} (h=π, K) Decays and Search for the Rare Decay B_{c}^{±}→K_{S}^{0}K^{±}.

Physical review letters·2026
Same author

Epidemiology and Prognosis of Burns in the Elderly: Study of 100 Cases.

Annals of burns and fire disasters·2026

High temperatures during municipal solid waste composting significantly altered microbial communities, reducing pathogens like E. coli and Salmonella. However, opportunistic pathogens may persist, posing risks for agricultural reuse.

Area of Science:

  • Environmental Microbiology
  • Waste Management Science

Background:

  • Composting municipal solid waste (MSW) is crucial for sustainable waste management.
  • Understanding microbial dynamics during composting is vital for producing safe, reusable end-products.

Purpose of the Study:

  • To investigate the physico-chemical conditions and microbial communities in MSW compost.
  • To assess the impact of moderate aeration and thermophilic temperatures on microbial populations, including pathogens and indicator bacteria.

Main Methods:

  • Semi-industrial pilot plant composting with moderate aeration.
  • Monitoring of physico-chemical conditions and microbial populations (mesophilic bacteria, yeasts, fungi, spores, Salmonella, Shigella, indicator bacteria).
  • Analysis of microbial changes during thermophilic and cooling phases, including the effect of sonication.

Related Experiment Videos

Main Results:

  • Thermophilic temperatures (55-60°C) significantly reduced populations of Escherichia coli, faecal Streptococci, yeasts, filamentous fungi, and mesophilic bacteria.
  • Salmonella disappeared by day 25, coinciding with temperatures reaching 60°C.
  • Bacterial spores initially increased then decreased; gram-negative rods (opportunistic pathogens) appeared during the cooling phase.
  • Sonication inactivated delicate bacteria, particularly gram-negatives, while gram-positive bacteria and fungal propagules survived.

Conclusions:

  • Composting effectively reduces many harmful bacteria and pathogens through auto-sterilization.
  • The persistence of opportunistic pathogens during the cooling phase necessitates further safety assessments for agronomic reuse.
  • Sonication shows potential for further sanitization of compost, targeting specific bacterial groups.