ゼロエミッションのための汚泥の工業原料化技術

• 中崎 清彦

  静岡大学工学部物質工学科

• 安達 友彦

  静岡大学工学部物質工学科

書誌事項

タイトル別名

• Technology for converting sludge into industrial raw material directed toward “zero emission”
• ゼロ エミッション ノ タメ ノ オデイ ノ コウギョウ ゲンリョウカ ギジュツ

抄録

Many types of industries dispose of sludge in large quantities from wastewater treatment facilities. The conversion of sludge into chemical feedstock, by networks of various production processes in different types of industries, is a step toward "zero emissions". This study utilizes wastewater sludge to produce L-lactic acid, a precursor of biodegradable plastic. The high concentrations of cellulose contained in sludge derived from a paper manufacturing facility have been found to be convertible to L-lactic acid. To achieve a high conversion rate, the sludge must be treated with the simultaneous saccharification and fermentation method, by which the successive transformation of glucose into L-lactic acid can reduce the inhibition of cellulose activity caused by the enzymatic product. A high concentration of L-lactic acid, 9.77 g/L, con be obtained from the sludge by the method of simultaneous saccharification and fermentation, under the optimum conditions of temperature at 40°C and pH around 5.0.

収録刊行物

• 環境科学会誌

  環境科学会誌 13 (5), 570-578, 2000

  社団法人 環境科学会

キーワード

• ゼロエミッション,汚泥,L-乳酸,ポリ乳酸生分解性プラスチック

詳細情報

• CRID: 1390282679398227200
• NII論文ID: 10005338226
• NII論文ID: 10012616847
• NII書誌ID: AN10165252
• DOI: 10.11353/sesj1988.13.570
• ISSN: 18845029
• ISSN: 09150048
• NDL書誌ID: 5620629
• Web Site: http://id.ndl.go.jp/bib/5620629
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5620629
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可