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author:

邱凌峰 (邱凌峰.) [1] | 黄志心 (黄志心.) [2]

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Abstract:

以2,4-二氯酚(2,4-DCP)和2,4,6-三氯酚(2,4,6-TCP)为代表,采用Sol-gel法固定化漆酶处理氯酚类污染物.结果表明:底物初始浓度为0.5 mmol/L,固定化漆酶投加量为7 g/L,反应3 h后DCP去除率可达95.3%,而反应2 h后TCP去除率可达99.6%.TCP和DCP去除过程可以用米氏方程描述,其米氏常数Km值分别为11.72和9.97 mmol/L,因此固定化漆酶对TCP的亲和力高于DCP,这导致了在反应时间、初始浓度、固定化酶投加量以及底物共存等因素变化后两者去除效果上的差异.连续48 h的运行数据和酶活损失表明固定化漆酶具有较好的反应稳定性.

Keyword:

SOL-GEL法 固定化漆酶 氯酚类污染物

Community:

  • [ 1 ] 福州大学环境与资源学院,福建福州350002

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Source :

福州大学学报:自然科学版

ISSN: 1000-2243

CN: 35-1337/N

Year: 2008

Issue: 6

Volume: 36

Page: 910-914

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 4

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