Textile Industries, and its Education and Research of U. S. and Europe

Background: Textile industries discharge harmful synthetic dyes to nearby water sources. These colour effluents should be treated before discharge to reduce the toxicity caused by synthetic colours. Objective: To synthesize visible light active superstructures to reduce water pollution caused by textile industries. Methods: We have successfully synthesized ZnO/Dy/NiO hybrid nanocomposites using waste curd as fuel by a simple combustion method. The obtained material was able to reduce recombination and enhanced the photocatalytic degradation of organic pollutants. The as-synthesized material was characterized by XRD, absorption spectroscopy, FESEM, EDAX, etc. The obtained hybrid nanostructure was used as a photocatalyst for the degradation of methylene blue under sunlight, UV light as well as in dark. Comparative experiments were carried out with a variation of catalytic load, pH, dye concentrations, etc. for a better understanding of the performance of the catalyst at various conditions. Results and Conclusion: The ternary compound shows wide range of absorption by expanding absorption band both in UV and visible regions. ZnO/Dy/NiO hybrid nanocomposites performed well and showed uniqueness in the activity uder visible light.

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Recurrent Indoor Environmental Pollution and Its Impact on Health and Oxidative Stress of the Textile Workers in Bangladesh

Environmental Health Insights ◽

10.1177/1178630220938393 ◽

2020 ◽

Vol 14 ◽

pp. 117863022093839

Author(s):

Tania Rahman ◽

Ar-Rafi Md. Faisal ◽

Tahura Khanam ◽

Hossain Uddin Shekhar

Keyword(s):

Oxidative Stress ◽

Ascorbic Acid ◽

Occupational Health ◽

Environmental Pollution ◽

Control Area ◽

Textile Workers ◽

Control Subjects ◽

Oxidative Stresses ◽

Healthy Control ◽

Textile Industries

Perennial indoor environmental pollution in the textile industrial area is a potential health hazard for workers engaged in this line of work, resulting in mental aberration to severe health risks. This study was designed to investigate the indoor environmental quality of textile industries and correlate its effect on the occupational health and well-being of the textile workers by measuring plasma oxidative stress status in textile workers and healthy control subjects. Environmental samples were collected from 15 textile industries located in Dhaka division, and 30 volunteer textile workers and 30 volunteer office workers (control) aged 18 to 57 years participated in the study. The concentration of plasma ascorbic acid (P-ASC), plasma malondialdehyde (P-MDA), and plasma conjugated diene (P-CD) was measured in both groups. The noise level (78.0 ± 0.68 dB) and the formaldehyde level (141.80 ± 4.47 µg/m3) were found to be significantly higher in the indoor environmental area compared with those in the control area (70.17 ± 0.25 dB and 108.0 ± 0.76 µg/m3, respectively). Furthermore, the daily average concentration of suspended particulate matters (PMs), that is, PM2.5 (322.2 ± 13.46 µg/m3) and PM10 (411.0 ± 17.57 µg/m3), was also found to be significantly higher in the indoor environmental air compared with that in the control area (78.59 ± 1.66 and 174.0 ± 2.33 µg/m3, respectively). The levels of P-MDA (0.37 ± 0.03 nmol/L) and P-CD (14.74 ± 0.61 nmol/L) were significantly increased, whereas the level of P-ASC level (0.46 ± 0.04 mg/dL) was markedly decreased in the textile workers compared with the healthy control subjects (0.18 ± 0.01 nmol/L of P-MDA, 10.04 ± 0.44 nmol/L of P-CD, and 1.29 ± 0.06 mg/dL of P-ASC). The textile plants were found to have significantly elevated levels of indoor environmental pollutants compared with those in the control area, and the textile workers were significantly exposed to oxidative stresses compared with the control subjects. The use of noise pads and high-efficiency air filters is perhaps highly instrumental to put an end to this prevailing situation. Moreover, to overcome the oxidative stresses among workers, supplementation of antioxidant vitamins (ie, ascorbic acid and/or vitamin E) may be beneficial. In addition, to prevent serious health-related issues, proper precautions should be taken to protect the occupational health of the textile workers.

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Recombinant cellulase of Caulobacter crescentus: potential applications for biofuels and textile industries

Cellulose ◽

10.1007/s10570-021-03700-5 ◽

2021 ◽

Author(s):

Larissa Bussler ◽

Débora Jacomini ◽

Juliana Moço Corrêa ◽

Marina Kimiko Kadowaki ◽

Alexandre Maller ◽

...

Keyword(s):

Caulobacter Crescentus ◽

Potential Applications ◽

Textile Industries ◽

Recombinant Cellulase

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A taxonomic account on the phytoplankton of a pond receiving textile industrial effluents

Bangladesh Journal of Plant Taxonomy ◽

10.3329/bjpt.v15i2.1742 ◽

1970 ◽

Vol 15 (2) ◽

pp. 129-139

Author(s):

Z.N. Tahmida Begum

Keyword(s):

Industrial Effluents ◽

Nostoc Commune ◽

Ankistrodesmus Falcatus ◽

Plant Taxon ◽

Textile Industries ◽

Anabaena Circinalis

Phytoplankton from four stations of a large pond receiving effluents from two textile industries have been investigated. A total of 69 taxa were identified out of which 48 belonged to Chlorophyceae followed by 17 to Cyanophyceae. One species from each of Chrysophyceae, Xanthophyceae, Cryptophyceae and Dinophyceae were also recorded. Oscillatoria limnetica Lemm., Anabaena circinalis Rabenh. ex Born. et Flah., Nostoc commune Vaucher ex Born. et Flah. Ankistrodesmus falcatus var. mirabilis (West & West) Lemm. and Scendesmus spp. were found dominant in all the stations.Keywords: Industrial effluents, Phytoplankton, TaxonomyÂ DOI: 10.3329/bjpt.v15i2.1742Â Bangladesh J. Plant Taxon. 15(2): 129-139, 2008 (December)

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Integrated Process for Textile Cotton Waste (TCW) Valorization: Waste-to-Energy and Wastewater Decontamination

Volume 6B: Energy ◽

10.1115/imece2016-66706 ◽

2016 ◽

Author(s):

A. Ribeiro ◽

C. Vilarinho ◽

J. Araújo ◽

J. Carvalho

Keyword(s):

Raw Materials ◽

Removal Rate ◽

Low Cost ◽

Calorific Value ◽

Waste To Energy ◽

Synthetic Wastewater ◽

Small Scale ◽

World Population ◽

Cotton Waste ◽

Textile Industries

The increasing of world population, industrialization and global consuming, existing market products existed in the along with diversification of raw materials, are responsible for an exponential increase of wastes. This scenario represents loss of resources and ultimately causes air, soils and water pollution. Therefore, proper waste management is currently one of the major challenges faced by modern societies. Textile industries represents, in Portugal, almost 10% of total productive transforming sector and 19% of total employments in the sector composed by almost 7.000 companies. One of the main environmental problems of textile industries is the production of significant quantities of wastes from its different processing steps. According to the Portuguese Institute of Statistics (INE) these industries produce almost 500.000 tons of wastes each year, with the textile cotton waste (TCW) being the most expressive. It was estimated that 4.000 tons of TCW are produced each year in Portugal. In this work an integrated TCW valorisation procedure was evaluated, firstly by its thermal and energetic valorisation with slow pyrolysis followed by the utilization of biochar by-product, in lead and chromium synthetic wastewater decontamination. Pyrolysis experiments were conducted in a small scale rotating pyrolysis reactor with 0.1 m3 of total capacity. Results of pyrolysis experiments showed the formation of 0,241 m3 of biogas for each kilogram of TCW. Results also demonstrated that the biogas is mostly composed by hydrogen (22%), methane (14 %), carbon monoxide (20%) and carbon dioxide (12%), which represents a total high calorific value of 12.3 MJ/Nm3. Regarding biochar, results of elemental analysis demonstrated a high percentage of carbon driving its use as low cost adsorbent. Adsorption experiments were conducted with lead and chromium synthetic wastewaters (25, 50 and 100 mg L−1) in batch vessels with controlled pH. It was evaluated the behaviour of adsorption capacity and removal rate of each metal during 120 minutes of contact time using 5, 10 and 50 g L−1 of adsorbent dosage. Results indicated high affinity of adsorbent with each tested metal with 78% of removal rate in chromium and 95% in lead experiments. This suggests that biochar from TCW pyrolysis may be appropriated to wastewaters treatment, with high contents of heavy metals and it can be an effective alternative to activated carbon.

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