Sheep's wool has traditionally been washed in hot water and detergent to remove contaminants. This can be an expensive process producing large volumes of hot wastewater which is difficult and expensive to discharge conventionally. Crossflow membrane technology is a cost-effective solution to the escalating costs associated with waste discharges. Using ultrafiltration membrane technology, the separated hot water and detergent is recycled for reuse and the unwanted suspended solids are concentrated by up to 70:1. The resultant slurry can be further concentrated by evaporation thereby minimising disposal costs. Other applications offering economic benefit where membranes have been utilised in the textile industry include: • Dye bath recovery and reuse • Spin finish and size recovery • Water jet loom motive water recovery • Recovery of detergent and water in secondary scouring Click Here For Complete Article Text
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