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1

Photooxidation: a decolorization procedure and a pre-treatment step for biodegradation of reactive azo dye

100%
Genc N., Can-Dogan E.
Polish Journal of Environmental Studies
|
2006
|
tom 15
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nr 1
In this study, by using a different variety of TiO₂ catalyst, photocatalytic oxidation of reactive azo dye used in textile industry and an improvement in the biodegradability of the dye by photocatalytic oxidation are investigated. It was found that the addition of TiO₂ in the photooxidation of dye increased color removal by 30.84 %, the addition of H₂O₂ in the presence of TiO₂ also increased color removal by 33.98 %. The study also examined the effect of TiO₂ obtained from different companies in color removal and it was found that TiO₂ obtained from Merck and Degussa displayed similar effectiveness in color removal. It was further found that, depending on the chemical composition of dye used, the ions, SO₄²⁻, Cl⁻ and NH₄⁺ emerged and that NH₄⁺ was oxidized to NO₂⁻. As a result of the 42 h long photocatalytic oxidation, a COD removal of about 85.3 % was achieved. In this study, Langmuir-Hinshelwood kinetic constants were examined and it was found that k=0.971 mg/L min and K=0.176 L/mg. By analyzing respirometric measures of raw and photocatalyzed dyes, it was determined that photocatalyzed dye had higher biodegradability than raw dye. Improvement in biodegradation was proven by the rise of BOD₅/COD ratio from 0.06 to 0.29.
2

Yield of early potatoes as depended on the term of nonwoven textile removement

86%
Dvorak P., Hamouz K.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
2008
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tom 530
In the two-year field trials the effect of row covering of early potatoes were investigated on the total tuber yield and the yield of ware potatoes. Experiments were performed with cv. Adora at the Přerov on Labem locality in the Czech Republic. Row covering with textile positively influenced the yield of ware potatoes during harvest 67 days after planting (in the variant with the textile removed on 25th day after planting it was 20.1% higher as compared to the variant when the textile was removed on 45th day after planting).
3
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Back to nature: henna extracts from nanotech to environmental biotechnology – a review

72%
Abd-El-Haleem D. A. M.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2023
|
tom 104
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nr 4
4

Evaluating the combined efficacy of polymers with fungicides for protection of museum textiles against fungal deterioration in Egypt

58%
Abdel-Kareem O.
Polish Journal of Microbiology
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2010
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tom 59
|
nr 4
Fungal deterioration is one of the highest risk factors for damage of historical textile objects in Egypt. This paper represents both a study case about the fungal microflora deteriorating historical textiles in the Egyptian Museum and the Coptic museum in Cairo, and evaluation of the efficacy of several combinations of polymers with fungicides for the reinforcement of textiles and their prevention against fungal deterioration. Both cotton swab technique and biodeteriorated textile part technique were used for isolation of fungi from historical textile objects. The plate method with the manual key was used for identification of fungi. The results show that the most dominant fungi isolated from the tested textile samples belong to Alternaria, Aspergillus, Chaetomium, Penicillium and Trichoderma species. Microbiological testing was used for evaluating the usefulness of the suggested conservation materials (polymers combined with fungicides) in prevention of the fungal deterioration of ancient Egyptian textiles. Textile samples were treated with 4 selected polymers combined with two selected fungicides. Untreated and treated textile samples were deteriorated by 3 selected active fungal strains isolated from ancient Egyptian textiles. This study reports that most of the tested polymers combined with the tested fungicides prevented the fungal deterioration of textiles. Treatment of ancient textiles by suggested polymers combined with the suggested fungicides not only reinforces these textiles, but also prevents fungal deterioration and increases the durability of these textiles. The tested polymers without fungicides reduce the fungal deterioration of textiles but do not prevent it completely.
5
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Badania nad własnościami alergicznymi tkaniny barwionej granatem LK

58%
Bronisz H.
Roczniki Państwowego Zakładu Higieny
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1957
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tom 08
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nr 4
6

Miedzynarodowe Targi Ekologiczne 'BioFach 2006' Norymbergia - Niemcy

44%
Pietrkiewicz E., Kloska M., Sulinski A.
ABC Jakości
|
2006
|
nr 2-3
94-96
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