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Technical and economic analysis of potential steam supply from waste treatment plants to industries in Aichi Prefecture, Japan

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Seiya Maki
Seiya Maki
Seiya Maki
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Satoshi Ohnishi at Tokyo University of Science
Satoshi Ohnishi
Minoru Fujii at National Institute for Environmental Studies
Minoru Fujii
Naohiro Goto
Naohiro Goto
Naohiro Goto
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Waste-to-energy treatment is an efficient energy recovery method and an important countermeasure against global warming. The supply of steam from waste treatment plants to industrial sectors presents a higher energy recovery efficiency than traditional waste-to-energy methods. However, its technical potential and economic benefits are not fully understood by policymakers. Furthermore, the regional characteristics and effects of neighboring land use, which affect the heat supply and demand, are not commonly analyzed. Therefore, this study evaluates the spatial steam demand of industries in the Aichi Prefecture by using the steam demand unit value per production shipment and the spatial value of manufactured goods shipments. In addition, this study evaluates the steam supply potential from waste treatment plants to industrial sectors based on the estimated spatial steam demand and the transportable distances. The results show that the steam supply from waste treatment plants to the industries has a great physical potential in Aichi Prefecture. From a cost–benefit perspective, plans considering a 1 km range can be profitable, but the profitability decreases as the distance increases and the no-profitability mesh number increases. To improve the energy recovery efficiency from waste, the location of waste treatment plant should be changed, and the efficiency of steam transport on both supply and demand sides should be increased.
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Vol.:(0123456789)
Optimization and Engineering (2021) 22:1755–1782
https://doi.org/10.1007/s11081-021-09637-9
1 3
RESEARCH ARTICLE
Technical andeconomic analysis ofpotential steam
supply fromwaste treatment plants toindustries inAichi
Prefecture, Japan
SeiyaMaki1· SatoshiOhnishi2· MinoruFujii1· NaohiroGoto3· LuSun1
Received: 19 November 2020 / Revised: 22 April 2021 / Accepted: 23 April 2021 /
Published online: 17 May 2021
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature
2021
Abstract
Waste-to-energy treatment is an efficient energy recovery method and an important
countermeasure against global warming. The supply of steam from waste treatment
plants to industrial sectors presents a higher energy recovery efficiency than tradi-
tional waste-to-energy methods. However, its technical potential and economic ben-
efits are not fully understood by policymakers. Furthermore, the regional character-
istics and effects of neighboring land use, which affect the heat supply and demand,
are not commonly analyzed. Therefore, this study evaluates the spatial steam
demand of industries in the Aichi Prefecture by using the steam demand unit value
per production shipment and the spatial value of manufactured goods shipments. In
addition, this study evaluates the steam supply potential from waste treatment plants
to industrial sectors based on the estimated spatial steam demand and the transporta-
ble distances. The results show that the steam supply from waste treatment plants to
the industries has a great physical potential in Aichi Prefecture. From a cost–benefit
perspective, plans considering a 1km range can be profitable, but the profitability
decreases as the distance increases and the no-profitability mesh number increases.
To improve the energy recovery efficiency from waste, the location of waste treat-
ment plant should be changed, and the efficiency of steam transport on both supply
and demand sides should be increased.
Keywords Waste-to-energy· Steam supply· Spatio-industrial steam demand· The
value of manufactured goods shipments· Geoinformation systems
* Seiya Maki
maki.seiya@nies.go.jp
Extended author information available on the last page of the article
Content courtesy of Springer Nature, terms of use apply. Rights reserved.
... Against this background, Maki et al. (2021) estimated the steam demand using a 1 km mesh from geographical data on industries, the steam supply potential of the waste treatment plant, and the locations of the waste generation sites in Aichi Prefecture, Japan, which consists of several cities of different scales as well as several industry types. They found that the steam supply could be transported as far as 6 km from the generation point, and that the waste treatment plants had steam generation potential of ∼60%. ...
... They found that the steam supply could be transported as far as 6 km from the generation point, and that the waste treatment plants had steam generation potential of ∼60%. An economic evaluation from Maki et al. (2021) revealed that the net profit would be negative if the maximum steam supply plan, that is, the steam would be supplied to all the firms in the supply area, was implemented. However, the results also indicated that if it was possible to target the steam supply only to profitable meshes, it would be possible to obtain approximately several hundred million yens from each plant per year. ...
... In addition, the purpose of this study was to select appropriate industries that can consider new waste treatment plant locations, and attract such industries based on an evaluation of economic efficiency. We applied methods developed for the estimation of net profit from steam supply (Maki et al., 2021) and employed Data Envelopment Analysis (DEA) to evaluate its economic efficiency. We also analyzed suitable meshes for steam supply in other regions using regression analysis for each industrial cluster. ...
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... The environmental and economic efficiency of a collaboration between waste incineration plants, sewage treatment plants, and industrial facilities is under evaluation [3][4][5][6][7]. A study that evaluated the environmental friendliness and business profitability of a waste incineration plant and a sewage treatment plant, located adjacent to each other and cooperating, showed that incinerating dry sludge at the waste incineration plant and reusing the heat from the process to heat the water supply for the fire extinguishing tank resulted in a 51% Greenhouse Gas (GHG) emission reduction compared to the normal method [5]. ...
... A study that evaluated the environmental friendliness and business profitability of a waste incineration plant and a sewage treatment plant, located adjacent to each other and cooperating, showed that incinerating dry sludge at the waste incineration plant and reusing the heat from the process to heat the water supply for the fire extinguishing tank resulted in a 51% Greenhouse Gas (GHG) emission reduction compared to the normal method [5]. Furthermore, a study that evaluated the feasibility of supplying steam from a sewage treatment plant to an industry in Aichi Prefecture, Japan, showed that the strategy was cost-effective within a 1 km distance, but profitability decreased with increasing distance [6]. These assessments were based on the concept of the life cycle assessment (LCA). ...
... For Case 3 and Case 4, The amount of steam generated from the incinerator of the waste incineration plant was calculated from Equation (6). The boiler efficiency was assumed to be 85%. ...
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