Decoloration of industrial dye effluents using immobilized lignin degrading enzymes
使用固定化木质素降解酶对工业染料废水进行脱色
基本信息
- 批准号:183752-2009
- 负责人:
- 金额:$ 2.19万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2011
- 资助国家:加拿大
- 起止时间:2011-01-01 至 2012-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Colored effluent into the environment is of growing concern, as color is a visible pollutant which is increasingly being regulated worldwide. It is aesthetically unpleasing, negatively impacts the environment and some synthetic dyes may be carcinogens or mutagens. Such effluents arise from textile and dyestuff manufacturing, and the pulp and paper, and food processing industries. Most current physical and/or chemical decoloration technologies do not achieve total decoloration, have operational difficulties or are too expensive; and traditional biological wastewater treatments have low removal efficiencies. White rot fungi can decolorize a wide range of dyes. Although there are advantages to use immobilized cultures, increase in biofilm growth eventually lead to poor reactor performance. Using their enzymes will avoid this problem but soluble enzymes are not practical in treating effluents as large quantities would be needed and the enzymes could be denatured. Immobilization on a solid matrix could overcome these drawbacks. So far, we have successfully evaluated immobilized laccase but white rot fungi produce other lignin-degrading enzymes such as lignin peroxidase, manganese peroxidise and cellobiose dehydrogenase that also decolorize. To have an effective process, combinations of these enzymes are required. The long-term objectives of this proposal are (i) to develop a cost-effective, biological process (based on immobilized enzymes) to decolorize dye effluents and (ii) to understand the degradation mechanisms. The first objective will be achieved by combining enzymes to target azo and anthraquinone dyes which make up a majority of dyes commercially used. The second objective will focus on the role of surfactants in decolorization as this effluent component causes significant enzyme inhibition. The knowledge from this work can also be applied to the degradation of other xenobiotics and biobleaching of pulp and paper. The outcome of this project may contribute to the Canadian economy by creating jobs in the construction and operation of enzyme reactors for wastewater treatment; and improve the quality of life and the environment by removing a visible and potentially toxic pollutant.
有色废水进入环境越来越受到关注,因为颜色是一种可见的污染物,在世界范围内越来越受到管制。它不美观,对环境有负面影响,一些合成染料可能是致癌物或诱变剂。这些废水来自纺织和染料制造、纸浆和造纸以及食品加工业。目前大多数物理和/或化学脱色技术不能实现完全脱色,有操作困难或太昂贵;传统的生物处理废水去除率较低。白腐菌可以对多种染料进行脱色。虽然使用固定化培养物有优点,但生物膜生长的增加最终导致反应器性能差。使用他们的酶可以避免这个问题,但可溶性酶在处理废水中不实用,因为需要大量的酶,而且酶可能会变性。固定在固体基质上可以克服这些缺点。到目前为止,我们已经成功地评估了固定化漆酶,但白腐真菌产生其他木质素降解酶,如木质素过氧化物酶,过氧化物锰和纤维素二氢脱氢酶,也脱色。为了有效的处理,这些酶的组合是必需的。本提案的长期目标是:(i)开发一种具有成本效益的生物工艺(基于固定化酶)来对染料废水进行脱色;(ii)了解降解机制。第一个目标将通过结合酶来靶向偶氮和蒽醌染料来实现,偶氮和蒽醌染料是商业上使用的大多数染料。第二个目标将集中在表面活性剂在脱色中的作用,因为这种流出成分会引起显著的酶抑制。从这项工作中获得的知识也可以应用于其他异种生物的降解和纸浆和纸张的生物漂白。该项目的结果可能通过在废水处理酶反应器的建设和运营中创造就业机会,为加拿大经济做出贡献;并通过去除可见的潜在有毒污染物来改善生活质量和环境。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Ramsay, Juliana其他文献
Enhanced yield of medium-chain-length polyhydroxyalkanoates from nonanoic acid by co-feeding glucose in carbon-limited, fed-batch culture
- DOI:
10.1016/j.jbiotec.2009.07.014 - 发表时间:
2009-09-25 - 期刊:
- 影响因子:4.1
- 作者:
Sun, Zhiyong;Ramsay, Juliana;Ramsay, Bruce - 通讯作者:
Ramsay, Bruce
Amaranth decoloration by Trametes versicolor in a rotating biological contacting reactor
- DOI:
10.1007/s10295-006-0117-0 - 发表时间:
2006-09-01 - 期刊:
- 影响因子:3.4
- 作者:
Ramsay, Juliana;Shin, Maria;Goode, Christopher - 通讯作者:
Goode, Christopher
Ramsay, Juliana的其他文献
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{{ truncateString('Ramsay, Juliana', 18)}}的其他基金
Biological treatment of naphthenic acids in oil sands process waters
油砂工艺水中环烷酸的生物处理
- 批准号:
RGPIN-2014-05395 - 财政年份:2022
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Biological treatment of naphthenic acids in oil sands process waters
油砂工艺水中环烷酸的生物处理
- 批准号:
RGPIN-2014-05395 - 财政年份:2021
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Minimization of GHG emissions in froth treatment tailing by manipulation of electron acceptors
通过操纵电子受体最大限度地减少泡沫处理尾矿中的温室气体排放
- 批准号:
514706-2017 - 财政年份:2019
- 资助金额:
$ 2.19万 - 项目类别:
Collaborative Research and Development Grants
Biological treatment of naphthenic acids in oil sands process waters
油砂工艺水中环烷酸的生物处理
- 批准号:
RGPIN-2014-05395 - 财政年份:2019
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Biological treatment of naphthenic acids in oil sands process waters
油砂工艺水中环烷酸的生物处理
- 批准号:
RGPIN-2014-05395 - 财政年份:2018
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Minimization of GHG emissions in froth treatment tailing by manipulation of electron acceptors
通过操纵电子受体最大限度地减少泡沫处理尾矿中的温室气体排放
- 批准号:
514706-2017 - 财政年份:2018
- 资助金额:
$ 2.19万 - 项目类别:
Collaborative Research and Development Grants
Minimization of GHG emissions in froth treatment tailing by manipulation of electron acceptors
通过操纵电子受体最大限度地减少泡沫处理尾矿中的温室气体排放
- 批准号:
514706-2017 - 财政年份:2017
- 资助金额:
$ 2.19万 - 项目类别:
Collaborative Research and Development Grants
Biological treatment of naphthenic acids in oil sands process waters
油砂工艺水中环烷酸的生物处理
- 批准号:
RGPIN-2014-05395 - 财政年份:2017
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Antimicrobial properties of graphene films
石墨烯薄膜的抗菌性能
- 批准号:
514528-2017 - 财政年份:2017
- 资助金额:
$ 2.19万 - 项目类别:
Engage Grants Program
Biological treatment of naphthenic acids in oil sands process waters
油砂工艺水中环烷酸的生物处理
- 批准号:
RGPIN-2014-05395 - 财政年份:2016
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
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- 批准号:
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$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Decoloration of industrial dye effluents using immobilized lignin degrading enzymes
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- 批准号:
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$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Decoloration of industrial dye effluents using immobilized lignin degrading enzymes
使用固定化木质素降解酶对工业染料废水进行脱色
- 批准号:
183752-2009 - 财政年份:2009
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Decoloration of industrial dye effluents using trametes versicolor
使用杂色栓菌脱色工业染料废水
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183752-2004 - 财政年份:2008
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Decoloration of industrial dye effluents using trametes versicolor
使用杂色栓菌脱色工业染料废水
- 批准号:
183752-2004 - 财政年份:2007
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Decoloration of industrial dye effluents using trametes versicolor
使用杂色栓菌脱色工业染料废水
- 批准号:
183752-2004 - 财政年份:2006
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Decoloration of industrial dye effluents using trametes versicolor
使用杂色栓菌脱色工业染料废水
- 批准号:
183752-2004 - 财政年份:2005
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual
Decoloration of industrial dye effluents using trametes versicolor
使用杂色栓菌脱色工业染料废水
- 批准号:
183752-2004 - 财政年份:2004
- 资助金额:
$ 2.19万 - 项目类别:
Discovery Grants Program - Individual