Analysis of Acclimation Behavior against Nitrification Inhibitors in Activated Sludge Processes

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概要

• 論文の詳細を見る

• The acclimation behavior of activated sludge against nitrification inhibitors was explored by continuously adding thiourea and/or aniline to unacclimated sludge. Thiourea, which is difficult to biodegrade, severely inhibited the ammonia oxidation step, whereas aniline inhibited both the ammonia and nitrite oxidation steps and its biodegradation by nitrifying sludge was possible after a short acclimation period. Since thiourea-acclimated sludge showed higher tolerance than unacclimated sludge, the recovery of complete nitrification after being in contact with thiourea over a long period was attributed not only to the acquisition of biodegrading ability but also to the tolerance acquired by the sludge. Once both biodegrading ability and tolerance were acquired, they remained even after stopping the addition of thiourea for several weeks. In contrast, aniline-acclimated sludge was suspected to acquire only biodegrading ability.

• 社団法人日本生物工学会の論文
• 1998-08-25

著者

• HANO TADASHI

  Department of Applied Chemistry, Oita University

• Takanashi Hirokazu

  Department Of Applied Chemistry Oita University

• Hano T

  Oita Univ. Oita Jpn

• HIRATA MAKOTO

  Department of Applied Chemistry, Oita University

• Hano Tadashi

  Department Of Applied Chemistry Oita University

• XIONG XIAOJING

  Department of Applied Chemistry, Oita University

• LEE MIN-GYU

  Department of Applied Chemistry, Oita University

• Hirata M

  Department Of Agricultural Chemistry Faculty Of Agriculture Kyushu University

• Lee Min-gyu

  Department Of Applied Chemistry Oita University:(present Address)department Of Chemical Engineering

• Xiong Xiaojing

  Department Of Applied Chemistry Oita University

• Hirata Makoto

  Department Of Applied Chemistry Oita University

• Hirata Makoto

  Department of Agricultural Chemistry, Faculty of Agriculture, Kyushu University

• Hano Tadashi

  Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University

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