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Waste Management & Research
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Aerated static pile composting of municipal solid waste (MSW): a comparsion of positive pressure aeration with hybrid positive and negative aeration

A.A. Sesay

School of Civil Engineering, University of Leeds, Leeds, UK

K.E. Lasaridi

School of Civil Engineering, University of Leeds, Leeds, UK

E.I. Stentiford

School of Civil Engineering, University of Leeds, Leeds, UK

A hybrid mode of aeration using "suck" and "blow" with tem perature feedback control was used in a static pile composting process. Its performance was compared with the classical aer ated static pile process using positive pressure aeration (blow ing) based on temperature feedback control including low rates of fixed aeration. The two piles used in the trial each used shredded municipal solid waste (MSW) as the substrate. The characteristic temperature/time profiles for both control strategies were monitored alongside other physico-chemical parameters including volatile solids content (and extent of reduction), C/N ratio, moisture content, pH, and electrical conductivity. Specific oxygen uptake rate (SOUR) was also measured to determine the stability of the compost. The indi cator organisms for faecal contamination, faecal coliforms and faecal streptococci were monitored to determine the extent of sanitisation of the compost.

Key Words: Composting • aerated static pile • positive pressure aeration • hybrid aeration • municipal solid waste • stability • sanitisation

Waste Management & Research, Vol. 16, No. 3, 264-272 (1998)
DOI: 10.1177/0734242X9801600308
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