下水汚泥焼却灰の緑農地利用に関する研究  [in Japanese] Utilization of incineration ashes of sewage sludge as the fertilizer  [in Japanese]

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Author(s)

Abstract

下水汚泥焼却灰を緑農地において資源として活用するために,焼却処理が肥料成分と含有重金属の質,量におよぼす影響を検討した。その結果,900℃で焼却した下水汚泥は亜鉛,銅,鉛の難溶化とカドミウムの揮発損失による減量が図られる事実を明らかにした。これと同時に窒素成分については失われるものの可給態リン含有率が増加することで肥料として利用可能であることが示唆された。さらに栽培試験の結果,黒ボク土においては十分な肥料効果が認められ,施用土壌の可溶性重金属の増加も認められないことを明らかにした。

In order to effective utilize the sewage sludge as the fertilizer; we clarified the characteristics of the incineration ashes of sewage sludge. Concentration of cadmium and lead contained in the incineration ashes material decreased dramatically with burnt up at temperature more than 700°C, as result of volatilization. Zinc and cupper contained in ashes of sewage sludge did not decreased after burnt up at temperature of 950°C but were transformed into in-soluble form by incineration treatments. Sequential fraction of heavy metals as affected by application of the incineration ashes material to soil was analyzed. A greenhouse experiment was conducted to compare the effect of application on the growth of grasses species. Application effect of phosphorus contained in the ashes was larger than that contained in the dried sludge cakes.

Journal

  • Journal of the Japanese Society of Revegetation Technology

    Journal of the Japanese Society of Revegetation Technology 33(1), 128-133, 2007-08-31

    The Japanese Society of Revegetation Technology

References:  12

Codes

  • NII Article ID (NAID)
    110006382054
  • NII NACSIS-CAT ID (NCID)
    AN10130633
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    09167439
  • NDL Article ID
    8939859
  • NDL Source Classification
    ZR21(科学技術--農林水産--林産) // ZN1(科学技術--建設工学・建設業)
  • NDL Call No.
    Z18-1223
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
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