Environmental impact assessment of ground source heat pump system for the sustainable usage

• Project/Area Number: 16K20954
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Geotechnical engineering; Design and evaluation of sustainable and environmental conscious system
• Research Institution: Saitama University
• Principal Investigator: Saito Takeshi 埼玉大学, 理工学研究科, 助教 (30735668)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 地中熱利用 / 環境影響評価 / 地下温度 / 二酸化炭素 / 地表面放出 / ホウ素 / ヒ素 / 地下水質 / 地下環境影響評価 / 二酸化炭素フラックス / 温室効果ガスフラックス

Outline of Final Research Achievements

The objective of this study was to evaluate effect of ground source heat pump (GSHP) system operation on carbon dioxide behavior in vadose zone and groundwater quality in several aquifers. There was no significant change in subsurface temperature by short-term operation of GSHP system. Therefore, considering the relationship between subsurface temperature change and surface emission of carbon dioxide and groundwater quality revealed in this study, it was suggested that GSHP system operation dose not significantly affect subsurface environment.

Academic Significance and Societal Importance of the Research Achievements

地中熱ヒートポンプによる冷暖房運転における周辺地下の温度変化は、研究例に極めて乏しく、その詳細は明らかにされていない。本研究では、その温度変化に関する知見の集積と、温度変化が不飽和帯における二酸化炭素ガスの動態や複数の帯水層における地下水質に及ぼす影響についても明らかにしており、研究成果の学術的意義は高い。また、地中熱ヒートポンプの利用時における環境影響評価を行い、短期的には地下環境への影響はないという知見が得られたことから、システムの今後の持続的な利用と発展に向けて、社会的にも十分に意義のある研究成果が得られた。

Research Products

• [Int'l Joint Research] グルノーブル大学/フランス国立科学研究センター(フランス)
• [Int'l Joint Research] グルノーブル大学/フランス国立科学研究センター(フランス)
• [Journal Article] Microbial Community Structures in Terrestrial Subsurface Sediments from the Southern Kanto Plain, Japan (2020)
  • Author(s): Ohkubo Satoshi、Saito Takeshi、Abul Kalam Azad Muhammad、Kawai Hiromitsu、Suda Wataru、Kore-eda Shin、Hamamoto Shoichiro、Saito Hirotaka、Takemura Takato、Komatsu Toshiko、Ohnishi Jun-ichi
  • Journal Title: Geomicrobiology Journal Volume: － Issue: 7 Pages: 1-8
  • DOI: 10.1080/01490451.2020.1743390
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Characterization and comparison of groundwater quality and redox conditions in the Arakawa Lowland and Musashino Upland, southern Kanto Plain of the Tokyo Metropolitan area, Japan (2020)
  • Author(s): Saito Takeshi、Spadini Lorenzo、Saito Hirotaka、Martins Jean M.F.、Oxarango Laurent、Takemura Takato、Hamamoto Shoichiro、Moldrup Per、Kawamoto Ken、Komatsu Toshiko
  • Journal Title: Science of The Total Environment Volume: 722 Pages: 137783-137783
  • DOI: 10.1016/j.scitotenv.2020.137783
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] VARIATIONS OF WATER QUALITY ALONG ACIDIC RIVERS IN VOLCANIC AREAS OF EASTERN JAPAN (2020)
  • Author(s): Saito Takeshi、Watanabe Naoki
  • Journal Title: International Journal of GEOMATE Volume: 19 Issue: 71 Pages: 36-41
  • DOI: 10.21660/2020.71.5782
  • Peer Reviewed / Open Access
• [Journal Article] 地下熱環境攪乱が地下水質に及ぼす影響評価に向けた原位置長期熱負荷試験 (2019)
  • Author(s): 斎藤健志・濱本昌一郎・竹村貴人・小松登志子
  • Journal Title: 第13回環境地盤工学シンポジウム発表論文集 Volume: 13 Pages: 29-32
  • Peer Reviewed
• [Journal Article] Overview of chemical contaminant behaviours in groundwater and subsurface thermal pollution as a new contamination issue (2019)
  • Author(s): Saito Takeshi
  • Journal Title: Proceedings of the 7th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS-2019) Volume: 7 Pages: 10-15
  • Peer Reviewed
• [Journal Article] ariations in water quality along acidic rivers in volcanic areas of Eastern Japan (2019)
  • Author(s): Saito Takeshi、Watanabe Naoki
  • Journal Title: Proceeding of the 5th International Conference on Science, Engineering & Environment (SEE) Volume: 5 Pages: 1030-1034
  • Peer Reviewed
• [Journal Article] Neutralization of acidic soil using construction and demolition waste for accelerating biodegradation of oil contaminated acidic soil (2019)
  • Author(s): Nagasinghe Isiri、Saito Takeshi、Kawamoto Ken
  • Journal Title: Proceeding of the 10th International Conference on Structural Engineering and Construction Management 2019 Volume: 10 Pages: 1-5
  • Peer Reviewed
• [Journal Article] 地下熱環境の攪乱による地下水環境リスク評価に向けた研究紹介 (2019)
  • Author(s): 濱本昌一郎、斎藤健志、小松登志子
  • Journal Title: 地盤工学会誌 Volume: 67 Pages: 28-29
  • Peer Reviewed
• [Journal Article] EFFECT OF TEMPERATURE CHANGE ON DISSOLUTION CHARACTERISTICS AND CHEMICAL FORMS OF BORON AND ARSENIC IN SEDIMENTS (2018)
  • Author(s): 斎藤健志、濱本昌一郎、竹村貴人、上島雅人、川本健、小松登志子
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Volume: 74 Issue: 1 Pages: 8-15
  • DOI: 10.2208/jscejer.74.8
  • NAID: 130006386873
  • ISSN: 2185-6648
  • Peer Reviewed
• [Journal Article] Long-term monitoring of groundwater quality in Arakawa Lowland and Musashino Upland, Southern Kanto Plain, Central Japan (2018)
  • Author(s): Saito, T., Saito, H., Takemura, T., Spadini, L., Oxarango, L., Martins, J., Hamamoto, S., Ohkubo, S., Kawamoto, K., and Komatsu, T.
  • Journal Title: Proceedings of the 6th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS-2018) Volume: 6 Pages: 98-103
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Relationship between trace elements and depositional environments in shallow sediments: a case study from Southern Kanto Plain, Central Japan (2017)
  • Author(s): Ueshima, M., Takemura, T., Saito, T., Ito, Y., Hamamoto, S., Saito, H., and Komatsu, T.
  • Journal Title: Environmental Earth Sciences Volume: 76 Issue: 18 Pages: 633-633
  • DOI: 10.1007/s12665-017-6968-z
  • Peer Reviewed
• [Journal Article] A computationally efficient pseudo-3D model for the numerical analysis of borehole heat exchangers (2017)
  • Author(s): Brunetti, G., Saito, H., Saito, T., and Simunek, J.
  • Journal Title: Applied Energy Volume: 208 Pages: 1113-1127
  • DOI: 10.1016/j.apenergy.2017.09.042
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] 荒川低地における原位置長期熱負荷・自然放冷試験中の浅層地下水の水質変化 (2017)
  • Author(s): 杉江瞭、斎藤健志、川本健、小松登志子
  • Journal Title: 第23回地下水・土壌汚染とその防止対策に関する研究集会講演集 Volume: 23 Pages: 3-6
  • NAID: 40021388496
• [Journal Article] Temperature change affected groundwater quality in a confined marine aquifer during long-term heating and cooling (2016)
  • Author(s): Takeshi Saito, Shoichiro Hamamoto, Takashi Ueki, Satoshi Ohkubo, Per Moldrup, Ken Kawamoto, Toshiko Komatsu
  • Journal Title: Water Research Volume: 94 Pages: 120-127
  • DOI: 10.1016/j.watres.2016.01.043
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] 堆積環境の異なる地下帯水層における温度変化と水質変化の関係性 (2016)
  • Author(s): 斎藤健志・上島雅人・川本健・小松登志子
  • Journal Title: 第22回地下水・土壌汚染とその防止対策に関する研究集会講演集 Volume: 22 Pages: 1-4
  • Acknowledgement Compliant
• [Presentation] 地下熱環境攪乱が地下水質に及ぼす影響評価に向けた原位置長期熱負荷試験 (2019)
  • Author(s): 斎藤健志・濱本昌一郎・竹村貴人・小松登志子
  • Organizer: 第13回環境地盤工学シンポジウム
• [Presentation] Overview of chemical contaminant behaviours in groundwater and subsurface thermal pollution as a new contamination issue (2019)
  • Author(s): Saito, T.
  • Organizer: 7th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS- 2019)
  • Int'l Joint Research / Invited
• [Presentation] Variations in water quality along acidic rivers in volcanic areas of Eastern Japan (2019)
  • Author(s): Saito, T. and Watanabe, N.
  • Organizer: 5th International Conference on Science, Engineering & Environment (SEE)
  • Int'l Joint Research
• [Presentation] Neutralization of acidic soil using construction and demolition waste for accelerating biodegradation of oil contaminated acidic soil (2019)
  • Author(s): Nagasinghe, I.U., Saito, T., and Kawamoto, K.
  • Organizer: 10th International Conference on Structural Engineering and Construction Management 2019
  • Int'l Joint Research
• [Presentation] 地下温度変化が地下水質に与える影響 (2019)
  • Author(s): 小松登志子・斎藤健志
  • Organizer: 第6回AGREA（特定非営利活動法人 地下水・地下熱資源強化活用研究会）技術交流会
• [Presentation] Change in subsurface temperature during in-situ, long-term artificial heating and natural cooling in the Arakawa Lowland of Kanto Area, Japan (2018)
  • Author(s): Saito, T., Sugie, R., Oxarango, L., Martins, J., Spadini, L., Kawamoto, K., and Komatsu, T.
  • Organizer: HYDRUS workshop
  • Int'l Joint Research
• [Presentation] Long-term monitoring of groundwater quality during in-situ artificial heating and natural cooling in the Arakawa Lowland near the Tokyo Metropolis, Japan (2018)
  • Author(s): Saito, T., Takemura, T., Moldrup, P., Kawamoto, K., and Komatsu, T.
  • Organizer: American Geophysical Union Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Long-term monitoring of groundwater quality in Arakawa Lowland and Musashino Upland, Southern Kanto Plain, Central Japan (2018)
  • Author(s): Saito, T., Saito, H., Takemura, T., Spadini, L., Oxarango, L., Martins, J., Hamamoto, S., Ohkubo, S., Kawamoto, K., and Komatsu, T.
  • Organizer: 6th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development
  • Int'l Joint Research
• [Presentation] Temperature effect on groundwater quality during in-situ, long-term subsurface heating and cooling in two confined aquifers in Kanto Area, Japan (2017)
  • Author(s): Saito, T., Sugie, R., Takemura, T., Ohkubo, S., Hamamoto, S., Moldrup, P., Kawamoto, K., and Komatsu, T.
  • Organizer: 44th Annual Congress of the International Association of Hydrogeologists
  • Int'l Joint Research
• [Presentation] 荒川低地における原位置長期熱負荷・自然放冷試験中の浅層地下水の水質変化 (2017)
  • Author(s): 杉江瞭、斎藤健志、川本健、小松登志子
  • Organizer: 第23回地下水・土壌汚染とその防止対策に関する研究集会
• [Presentation] 堆積環境の異なる地下帯水層における温度変化と水質変化の関係性 (2016)
  • Author(s): 斎藤健志・上島雅人・川本健・小松登志子
  • Organizer: 第22回地下水・土壌汚染とその防止対策に関する研究集会
  • Place of Presentation: 京都大学（京都府、京都市）
  • Year and Date: 2016-06-23
• [Presentation] Ground source heat pump systems and the environmental risks (2016)
  • Author(s): Saito, T., Ueshima, M., Kawamoto, K., Moldrup, P., and Komatsu, T.
  • Organizer: 16th Science Council of Asia Conference
  • Place of Presentation: Colombo, Sri Lanka
  • Year and Date: 2016-05-30
  • Int'l Joint Research
• [Presentation] Change in groundwater quality during the long term thermal loading and cooling (2016)
  • Author(s): Kenmochi, M., Saito, T., Kawamoto, K., and Komatsu, T.
  • Organizer: Japan Geoscience Union Meeting 2016
  • Place of Presentation: 幕張メッセ（千葉県、千葉市）
  • Year and Date: 2016-05-22
  • Int'l Joint Research