Comparison of mass balance, energy consumption and cost of composting facilities for different types of organic waste

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Waste Management

DOI:https://doi.org/10.1016/j.wasman.2010.09.010· OSTI ID:21550350

Huijun, Zhang ^[1]; Matsuto, Toshihiko ^[1]

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1. Lab of Solid Waste Disposal Engineering, Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo 060-8628 (Japan)

Mass balance, energy consumption and cost are basic pieces of information necessary for selecting a waste management technology. In this study, composting facilities that treat different types of organic waste were studied by questionnaire survey and via a chemical analysis of material collected at the facilities. The mass balance was calculated on a dry weight basis because the moisture content of organic waste was very high. Even though the ratio of bulking material to total input varied in the range 0-65% on a dry basis, the carbon and ash content, carbon/nitrogen ratio, heavy metal content and inorganic nutrients in the compost were clearly influenced by the different characteristics of the input waste. The use of bulking material was not correlated with ash or elemental content in the compost. The operating costs were categorised into two groups. There was some economy of scale for wages and maintenance cost, but the costs for electricity and fuel were proportional to the amount of waste. Differences in operating costs can be explained by differences in the process characteristics.

• OSTI ID: 21550350
• Journal Information: Waste Management, Vol. 31, Issue 3; Other Information: DOI: 10.1016/j.wasman.2010.09.010; PII: S0956-053X(10)00487-3; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ASH CONTENT
ASHES
CARBON
CHEMICAL ANALYSIS
COMPOSTING
ECONOMY
ELECTRICITY
ENERGY CONSUMPTION
FUELS
HEAVY METALS
MAINTENANCE
MASS BALANCE
MOISTURE
NITROGEN
OPERATING COST
ORGANIC WASTES
COMBUSTION PRODUCTS
COST
ELEMENTS
MANAGEMENT
METALS
NONMETALS
PROCESSING
RESIDUES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES