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Effect of main elements on the biological 1,4-dioxane removal performance

Research Project

Project/Area Number 17H07137
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Environmental engineering and reduction of environmental burden
Research InstitutionToyo University

Principal Investigator

Isaka Kazuichi  東洋大学, 理工学部, 准教授 (40543939)

Project Period (FY) 2017-08-25 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords1,4-ジオキサン / 排水処理 / 窒素 / リン / 固定化微生物 / 包括固定 / ジオキサン / 生物処理 / 化学物質 / 固定化 / 微生物 / 分解菌
Outline of Final Research Achievements

1,4-Dioxane is a toxic substrate for humans and also major pollutant of water environments. In many types of wastewater contains 1,4-dioxane and it discharged to surface water. Therefore, it is important to remove 1,4-dioxane from effluent on the wastewater treatment plants. Biological treatment is an effective way to remove organic chemicals from wastewater with low energy consumption. However, it was well known that 1,4-dioxane is persistent against biodegradation. The author group has recently reported that succeeded in isolation of the four species of 1,4-dioxane-degrading bacteria. And then, novel biological 1,4-dioxane treatment process was developed. In the present study, effect of main elements such as nitrogen and phosphorus on the biological 1,4-dioxane treatment process was evaluated. As a results, stable 1,4-dioxane removal performance was maintained under 5 mg/L of nitrogen concentration. Moreover, phosphorus concentration can be reduced to 1 mg/L (reported value 45).

Academic Significance and Societal Importance of the Research Achievements

1,4-ジオキサンは様々な排水に含まれる可能性があり、適切な処理が必要である。本研究では、微生物の力を活用して分解するシステムを開発するだけでなく、安定的に運転できる条件を明らかにした。本成果により、開発したシステムが実際の排水処理に適用可能な範囲であることが示され、実用化の可能性が強く示唆された。本システムが導入されることで、環境汚染を防止することができ、健全な水環境保全への貢献が期待される。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • Research Products

    (5 results)

All 2018

All Presentation (5 results) (of which Invited: 2 results)

  • [Presentation] 1,4-ジオキサン生物処理システムによる窒素添加濃度の適正化2018

    • Author(s)
      宮内信太郎、井坂和一、見島伊織、池道彦
    • Organizer
      第52回日本水環境学会
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
  • [Presentation] 特定微生物群の優占化を可能とする包括固定化技術と排水処理装置の運転方法2018

    • Author(s)
      井坂和一
    • Organizer
      化学工学会第50回秋季大会シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 生物学的1,4-ジオキサン処理システムにおける窒素・リン濃度条件の適正化2018

    • Author(s)
      田戸亮輔、鈴木慎、井坂和一、見島伊織、池道彦
    • Organizer
      川越フォーラム2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 1,4-ジオキサン生物処理システムにおける微量元素濃度の影響2018

    • Author(s)
      鈴木慎、田戸亮輔、井坂和一、池道彦
    • Organizer
      第55回日本水処理生物学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] アナモックス菌と1,4-ジオキサン分解菌の研究について2018

    • Author(s)
      井坂和一
    • Organizer
      第75回神奈川県支部CPD講座
    • Related Report
      2018 Annual Research Report
    • Invited

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Published: 2017-08-25   Modified: 2020-03-30  

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