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Eco-friendly disperse dyeing of ultraviolet-treated polyester fabric using disperse yellow 211

100%

Adeel S., Shahid S., Khan S. G., Rehman F., Muneer M., Zuber M., Akhtar N.

Polish Journal of Environmental Studies

2018

tom 27

nr 5

A uniform and eco-friendly heating source, ultraviolet radiation has auspiciously improved the disperse dyeing of polyester fabrics. For our current study we used disperse yellow 211 (DY 211) to dye polyester fabric under the influence of ultraviolet treatment. Both the fabric and dye solution were UV-treated for 15-60 min and dyed under variable conditions. We found that ultraviolet-treated polyester (RP) for 30 min. gives good color strength and darker shades at 70ºC using 70 mL of un-irradiated dye solution (NRS) of pH 8 in the presence of 2% of dispersant. While for the dye bath of pH 11, irradiated polyester (RP) for 45 min. using 90 mL irradiated dye solution (RS) gives good color strength and darker shades at 100°C in the presence of 1% of dispersant. ISO standards for fastness revealed good-to-excellent ratings for different shades dyed under optimal conditions. Ultraviolet treatment not only reduced the time, labor, and money, but also improved color characteristics.

Using combined UV and H2O2 treatments to reduce tannery wastewater pollution load

84%

Iqbal M., Muneer M., Hussain S., Parveen B., Javed M., Rehman H., Waqas M., Abid M. A.

Polish Journal of Environmental Studies

2019

tom 28

nr 5

Contaminated wastewater discharged from tanneries in Pakistan creates a lot of pollution problems. This study presents the treatment of wastewater samples collected from inlet and outlet sections of Kasur Tannery Waste Management Agency (KTWMA) in Kasur, Pakistan. The procedure utilizes hydrogen peroxide (H₂O₂) in the presence of ultraviolet (UV) radiation for the successful degradation of pollutants present in tannery water. The treatment of polluted water samples with UV/H₂O₂ for the duration of either 45 minutes or 90 minutes has greatly affected the water quality parameters such as biochemical oxygen demand (BOD), chemical oxygen demand (COD), chlorides, chromium, pH, total dissolved solids (TDS) and total suspended solids (TSS). It was concluded that the contaminants were degraded and changed to a great extent as compared to their original concentrations. This process can be considered to be a clean process as it is an environmentally friendly process and does not produce pollutants and solid wastes like other conventional processes.

Ograniczanie wyników

2 Polish Journal of Environmental Studies

2 Muneer M.

1 Abid M. A.

1 Adeel S.

1 Akhtar N.

1 Hussain S.

1 Iqbal M.

1 Javed M.

1 Khan S. G.

1 Parveen B.

1 Rehman F.

1 Rehman H.

1 Shahid S.

1 Waqas M.

1 Zuber M.

1 2019

1 2018

Wyniki wyszukiwania

Eco-friendly disperse dyeing of ultraviolet-treated polyester fabric using disperse yellow 211

Using combined UV and H2O2 treatments to reduce tannery wastewater pollution load