Reuse of effluent from dyeing polyester fibers by thermal fixation using acid-based colors

This paper aims to enable the study of water reuse in the seat belt webbing dyeing process, achieving larger economy in water consumption since textile operations use a great amount of water. In order to reach this goal, various products were tested during the treatment of such effluents which met the following characteristics: biodegradability, greater efficiency in removing color, compliance with legislation, and low cost. Using these new products, approximately 59% of water consumption and 30% of effluent treatment were reduced on a monthly basis. Taking into account these initial results, payback is expected in approximately five months.