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Dewatering of livestock waste using by liquefied dimethyl ether

Research Project

Project/Area Number 23360231
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil and environmental engineering
Research InstitutionKyoto University

Principal Investigator

OSHITA Kazuyuki  京都大学, 地球環境学堂, 准教授 (90346081)

Co-Investigator(Kenkyū-buntansha) TAKAOKA Masaki  京都大学, 地球環境学堂, 教授 (80252485)
KANDA Hideki  名古屋大学, 工学研究科, 助教 (90371624)
Project Period (FY) 2011-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2012: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2011: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Keywords畜産廃棄物 / 液化ジメチルエーテル / 動物医薬品 / 脱水 / 乾燥 / 省エネルギー / 再利用 / 燃料化 / 家畜糞尿 / 抽出 / 結合水
Research Abstract

In this study, an advanced dewatering process for livestock manure, operated at room temperature with low energy requirements due to the use of liquefied dimethyl ether (DME), was investigated experimentally to generate dry livestock manure as a solid fuel.
The results showed that the 80% water content in cattle manure was decreased to 5.7% when DME was applied at 38 mL-DME/g-manure with a 70 min dewatering time, which represented the optimized dewatering conditions. Under these conditions, the wet based lower heating value of the dewatered manure was 18 times higher than that of the original cattle manure, and odor and self-pyrogenicity of the dewatered manure were decreased by liquefied DME dewatering. As for the behavior of the medicinal products used by veterinarians, the more hydrophobic medicinal products is, the higher it have an extractability by liquefied DME. Therefore, a DME dewatering system could be controlled by hydrophobic environment.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (2 results)

All 2012

All Presentation (2 results)

  • [Presentation] 液化ジメチルエーテルを用いた家 畜糞の乾燥に関する研究2012

    • Author(s)
      戸田覚之, 大下和徹, 高岡昌輝, 松川和嗣, 藤原拓, 神田英輝
    • Organizer
      第49回環境工学研究フォーラム講演集
    • Related Report
      2013 Final Research Report
  • [Presentation] 液化ジメチルエーテルを用いた家畜糞の乾燥に関する研究2012

    • Author(s)
      戸田覚之
    • Organizer
      第49回土木学会環境工学研究フォーラム
    • Place of Presentation
      京都大学百周年時計台記念館
    • Related Report
      2012 Annual Research Report

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Published: 2011-04-06   Modified: 2019-07-29  

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