ミルキングパーラ排水の磁化活性汚泥法による処理特性  [in Japanese] Milking Parlour Wastewater Treatment by Magnetic Activated Sludge Process  [in Japanese]

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Abstract

代表的な畜産廃水であるミルキングパーラ排水を対象に, 磁化活性汚泥法を応用した処理実験を行った。実験中には汚泥の引き抜き及び強磁性粉の再添加なしに, 150日間良好な処理を行うことが可能であった。排水の曝気槽内の滞留時間を3日, 2日, 1日になるように, COD<sub>cr</sub>容積負荷をそれぞれ527.7mg/<i>l</i>/dから852.0mg/<i>l</i>/d, 1541.9mg/<i>l</i>/dの3段階に分け実施した。実験期間中にCOD<sub>cr</sub>除去率は平均93%を維持した。磁気力を用いた汚泥の高速分離により, 曝気槽中の汚泥濃度を高濃度に維持された。

Treatment of dairy milking parlour wastewater using the Magnetic Activated Sludge (MAS) process was investigated. The experiment was carried out for 150 days without withdrawal of excess sludge and without addition of ferromagnetic powder. During the experimental period, three different COD<sub>cr</sub> loading rate; 527.7mg/l/d, 852.0mg/l/d and 1541.9mg/l/d for hydraulic retention times of 3 days, 2 days and 1 day were used, respectively. The average COD<sub>cr</sub> removal efficiency of 93% was maintained in the experimenteal period. High biomass concentration in aeration tank was achieved by magnetic separation.

Journal

  • Nogyo Shisetsu (Journal of the Society of Agricultural Structures, Japan)

    Nogyo Shisetsu (Journal of the Society of Agricultural Structures, Japan) 39(4), 243-248, 2009-03-25

    The Society of Agricultural Structures, Japan

References:  17

Codes

  • NII Article ID (NAID)
    10024966213
  • NII NACSIS-CAT ID (NCID)
    AN00201054
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    03888517
  • NDL Article ID
    10227586
  • NDL Source Classification
    ZR7(科学技術--農林水産--農産)
  • NDL Call No.
    Z18-1016
  • Data Source
    CJP  NDL  IR  J-STAGE 
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