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Research on biological deodorization of MVOCs during fertilization process of sewage sludge

Research Project

Project/Area Number 16K06554
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Civil and environmental engineering
Research InstitutionPrefectural University of Hiroshima

Principal Investigator

Nishimura Kazuyuki  県立広島大学, 生命環境学部, 教授 (00261595)

Co-Investigator(Kenkyū-buntansha) 崎田 省吾  県立広島大学, 生命環境学部, 准教授 (80398099)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsバイオマスの利活用 / 適正処理 / 臭気除去 / MVOCs / 有機性肥料 / 生物脱臭 / 微生物叢 / 次世代シーケンス / 陽イオン交換容量 / 肥料化処理 / 余剰汚泥 / 廃棄物再資源化 / 有機性廃棄物 / 肥料化 / 微生物由来揮発性有機化合物
Outline of Final Research Achievements

This study aimed to understand the behavior of MVOCs in an organic fertilizer plant and to establish the biological deodorization process. The relationship between MVOCs concentration and microflora in the process was analyzed. The microorganisms involved in the removal of MVOCs were isolated within the biological deodorization process. The MVOCs detected during the fermentation process did not differ significantly depending on the sub materials. However, when the sub materials differ, the MVOCs concentration has a difference of about 2 times. Changes in the microbiota in the fermenter were different depending on the fermentation conditions. In the fertilization process, the requirements for affecting the occurrence of MVOCs and the change of microflora were the quality and quantity of organic matter and the aeration volume. 32 strains of aerobic microorganisms were isolated from the biological deodorization tower. More than 80% of the obtained strains belonged to Firmicutes.

Academic Significance and Societal Importance of the Research Achievements

余剰汚泥の肥料化において発生する臭気の効率的な除去を目指して,微生物が産生する臭気物質であるMVOCsの発生挙動と微生物叢との関係を調べた。また生物脱臭塔内から微生物を単離・同定し,生物脱臭に有効な微生物種を探索した。
肥料化過程で発生するMVOCsは発酵条件による違いは大きくないが,発生量は有機物量,質や通気量によって2倍程度の差が生じた。微生物叢の変遷は,これらの条件によって異なっていた。生物脱臭塔から単離された微生物の殆どは発酵菌門に属していたが,遺伝子解析ではプロテオバクテリア門が優占していたことから,MVOCsの除去に関与する微生物種は単離が難しい微生物種が担っていることが示された。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (4 results)

All 2018 2017

All Presentation (4 results)

  • [Presentation] 余剰汚泥を原料とする有機性肥料の発酵条件に関する検討2018

    • Author(s)
      井藤知里,西村和之,﨑田省吾,國田丙午,伊藤純樹,原田美穂子,徳岡誠人,大森誠紀
    • Organizer
      第29回 廃棄物資源循環学会研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 余剰汚泥を原料とする肥料化過程で発生するMVOCsの挙動2017

    • Author(s)
      河田梨早、松島亜耶、西村和之、崎田省吾、徳岡誠人、大森誠紀
    • Organizer
      第51回日本水環境学会年会
    • Place of Presentation
      熊本大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 余剰汚泥を原料とする肥料化過程で発生するMVOCsと微生物叢に関する検討2017

    • Author(s)
      松島亜耶,西村和之,,﨑田省吾,徳岡誠人,大森誠紀
    • Organizer
      第28回廃棄物資源循環学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 余剰汚泥を原料とする肥料化過程で発生するMVOCsの挙動2017

    • Author(s)
      河田梨早.松島亜耶,西村和之,崎田省吾,徳岡誠人,大森誠紀
    • Organizer
      第51回日本水環境学会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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