Reactive dyes
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Cotton dyeing using reactive dyes generates warm wastewater strongly colored, containing suspended solids,concentrated NaCl and widely varying acid amounts. Dyeing one kilogram of cotton with reactive dyes requires from70 to 150 L water, 0.6 kg NaCl and 40 g reactive dye. We have worked out a proces
Desalination 162 (2004)
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Thermally stable nanofiltration membranes were used to recover hot water from rinsing effluents from acid and reactive dyeing operations. Two types of flat-sheet membranes, MPF-34 (MWCO 200) and MPF-36 (MWCO 1000), were tested at 60°C and 10 bar. Experiments carried out with the made-up feeds contai
Desalination 160 (2004)
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