Abstract
Water contamination with large amounts of industrial textile coloured effluents is an environmental concern. For the treatment of textile effluents, white-rot fungi have received extensive attention due to their powerful capability to produce oxidative (e.g., ligninolytic) enzymes. In addition, other groups of fungi, such as species of Aspergillus and Trichoderma, have also been used for textile effluents treatment. The main aim of the present study was to requalify a Brazilian Trichoderma culture collection of 51 Trichoderma strains, isolated from different sources in Brazil and preserved in the oldest Latin-American Fungal Service Culture Collection, The Micoteca URM WDCM 804 (Recife, Brazil). Fungal isolates were re-identified through a polyphasic approach including macro- and micro-morphology and molecular biology, and screened for their capability to decolourise real effluents collected directly from storage tanks of a textile manufacture. Trichoderma atroviride URM 4950 presented the best performance on the dye decolourisation in real textile effluent and can be considered in a scale-up process at industrial level. Overall, the potential of Trichoderma strains in decolourising real textile dye present in textile effluent and the production of the oxidative enzymes Lac, LiP and MnP was demonstrated. Fungal strains are available in the collection e-catalogue to be further explored from the biotechnological point of view.
Highlights
Textile industries waste large water quantities that in some cases return to environment as untreated or incorrectly treated effluents [1]
Trichoderma asset assetpreserved preservedatatthetheMicoteca culture collection identified andand made available in the culture collection e-catalogue to be explored fromfrom the re-identified made available in the culture collection e-catalogue tofurther be further explored biotechnologically point of view
The data obtained suggest that the dye decolourisation in real textile effluent is not a one-step process
Summary
Textile industries waste large water quantities that in some cases return to environment as untreated or incorrectly treated effluents [1]. Due to the presence of non-fixed dyes during the dyeing process, these wastewaters are highly coloured [2,3]. Water contamination with large amounts of coloured effluents is a serious environmental problem. There are mainly three types of treatment for textile effluents: physical, chemical and biological. Relevant methods based on biological textile effluents degradation have been developed. Res. Public Health 2017, 14, 373; doi:10.3390/ijerph14040373 www.mdpi.com/journal/ijerph
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