廃ガラスを再生した発泡ガラスの重金属類の溶出と抑制

DOI

書誌事項

タイトル別名
  • Leaching and restraining of heavy metals from foaming glass recycled from waste glass

抄録

The environmental safety of foaming glass that is made from waste glass was examined. The foaming glass is made by adding silicon carbide to crashed waste glass and being foamed with high temperature. The contents of Pb, As, Cr in a waste carboy and their amount in a leachate from an experimentally made glass were analyzed. As a result, the concentrations of Pb As, and Cr in the waste carboy were 100 (23-190) mg/kg, 11 (4.0-25) mg/kg, and 840 (810-1000) mg/kg, respectively. Green glass had high concentration of all the metals. The concentration of the metals in the leachate was as follows, Pb: 0.15 (<0.01-0.43) mg/l, Cr (IV): 0.11 (<0.05-0.33) mg/l, and As: 1.2 (0.43- 3.1) mg/l.The leaching of Pb from foam glass could be effectively restrained by adding CaSO4 or Fe2 (SO4) 3 to the raw materials, while the leaching of As could be restrained by adding Ca (OH) 2 and Fe2 (SO4) 3.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001204111059712
  • NII論文ID
    130003949525
  • DOI
    10.11532/proes1992.43.289
  • ISSN
    1884829X
    13415115
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

問題の指摘

ページトップへ