Water-extractable components released during composting of municipal solid waste

Benny Chefetz, Yona Chen, Yitzhak Hadar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

18 Scopus citations


Composting of municipal solid waste (MSW) was studied in an attempt to better understand the composting process and concomitant changes occurring in the water- soluble fraction. Composting was performed in lm3 plastic boxes and the following parameters were measured in the compost liquid phase: C/N ratio, electrical conductivity (EC), pH, dissolved organic carbon (DOC), optical density and soluble nitrogen forms. The C/N ratio and DOC levels exhibited high rates of change during the first 60-70 days, then stabilized. The pH of the compost followed a typical trend during composting, reaching neutrality at the end of the process. The ammonium level peaked during the thermophilic stage, whereas during maturation the ratio between N-NO3-/N- NH4+ increased to 4. The increasing level of N0 3- during the last stage of composting can be used as an indicator of compost maturity, whereas the C/N ratio can serve only as an indicator of compost stability.

Original languageAmerican English
Title of host publicationActa Horticulturae
PublisherInternational Society for Horticultural Science
Number of pages8
ISBN (Print)9789066058804
StatePublished - 1 Jul 1998

Publication series

NameActa Horticulturae
ISSN (Print)0567-7572


  • Compost maturity
  • MSW


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