Environmental and economic evaluation of combined system of the garbage facility and sewage treatment facility

Ogawa, Akihisa; Watanabe, Daichi; Ko, Kou; Onoda, Hiroshi; Watanabe, Yoichi; Yamaguchi, Jyunji

doi:10.1299/jsmeenv.2019.29.j205

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the authors aimed to integrate the waste incineration plant in Japan and reduce social costs. The authors attempted to evaluate CO 2 emissions and the economic impacts of introducing an MBT system in conjunction with waste incineration plants and existing infrastructure in various model regions of Japan by providing detailed estimation methods [27,28]. In Karatsu City, Saga Prefecture, Japan, there is an example of evaluating greenhouse gas reduction and maintenance costs when a waste incineration plant and a sewage treatment plant are linked [28].…”

Section: Introductionmentioning

confidence: 99%

Environmental and Economic Evaluation of Mechanical Biological Treatment System for Municipal Waste Considering the Political Framework in Ichihara City

Ogawa¹,

Ono²,

Onoda³

2021

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Japan’s declining population has caused changes in the amount and characteristics of municipal waste. In order to optimize waste incineration plants as a countermeasure to this problem, we analyzed the performance of the integration of the plants with the Mechanical Biological Treatment (MBT) system. In the integrated system, food waste and sewage sludge from waste incineration plants, sewage treatment plants, and industrial facilities were mixed and fermented to produce methane gas. In this study, we evaluated the environmental and economic performance of the integrated system in four case scenarios. The integrated system is located in Ichihara City in Chiba Prefecture, where the Keiyo Coastal Industrial Zone is located and where petroleum and chemical industries are concentrated. The MBT system in which the heat generated from the incineration of waste was transferred to the Keiyo Coastal Industrial Zone was found to be the best. This method could reduce CO2 emissions by 1341 t-CO2/Y, and the annual cost was the lowest at 1.60 billion yen/Y. However, the results of the sensitivity analysis of the food waste ratio and the piping distance suggested that it may be impossible to obtain appropriate evaluation results without considering the regional characteristics.

show abstract

Section: Introductionmentioning

confidence: 99%