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- Title
Environmental and Economic Evaluation of a Mechanical Biological Treatment System for a Small and Medium-Sized Waste Treatment Facility Considering the Karatsu Smart Disaster-Resilience Base Construction Project.
- Authors
Ogawa, Akihisa; Pandyaswargo, Andante Hadi; Yoshidome, Daiki; Onoda, Hiroshi
- Abstract
We evaluated the feasibility of waste-generated heat using a 100-kW digestion gas engine at the Karatsu City Water Purification Center by evaluating its disaster resilience through four indicators. We achieved the best outcome, i.e., a power generation rate of 1,122 kW and a power self-sufficiency rate of 22% when two or more digestion gas engines were installed to supply waste-generated heat to the absorption chiller/heater of a water-pool. Additionally, we evaluated the environmental and economic aspects of a Mechanical Biological Treatment (MBT) system installed in Karatsu City. The results suggested that by installing an MBT system, the annual cost could be reduced by ∼100 million Yen and the power generation capacity could be increased to 4,310 kW; this could also help reduce 19,000 tons of annual CO2 emissions with increased power generation. The environmental and economic feasibility assessment tool developed here is configurable; hence, applicable to other regions.
- Subjects
MECHANICAL biological treatment system; CONSTRUCTION project management; INTERNAL combustion engines; WASTE management; METHANE fermentation
- Publication
International Journal of Automation Technology, 2020, Vol 14, Issue 6, p984
- ISSN
1881-7629
- Publication type
Article
- DOI
10.20965/ijat.2020.p0984