Sánchez-Arévalo Carmen M, García-Suarez Laura, Camilleri-Rumbau Maria Salud, Vogel Jorg, Álvarez-Blanco Silvia, Cuartas-Uribe Beatriz, Vincent-Vela M Cinta
Research Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022, Valencia, Spain.
Jeanologia S.L., Ronda de Guglielmo Marconi, 12, 46980, Paterna, Valencia, Spain.
Heliyon. 2024 Nov 28;10(23):e40742. doi: 10.1016/j.heliyon.2024.e40742. eCollection 2024 Dec 15.
The textile industry is one of the largest water consumers, and, as a result of its activity, it generates tons of wastewater. In this research, forward osmosis has been employed to tackle the critical need of treating textile wastewater. The HFFO2 membrane (Aquaporin) was used to process large volumes of real cotton dyeing wastewater, wool dyeing wastewater, and several types of textile end-of-pipe wastewater. In all cases, the permeate flux was between 6 and 8 L·h m during the major part of the process. The recovery of clean water from each wastewater surpassed 90 %, whereas the membrane rejected more than 87 % of total dissolved solids. As a result, textile dyes were concentrated on the feed side of the membrane, which enables their recovery and potential reutilization in a subsequent dying process, along with the reclaimed water. The HFFO2 membrane was efficiently cleaned by a backwash process, restoring the initial water flux. These results indicate the suitability of forward osmosis to reuse dyes and water from textile wastewater, reducing the environmental impact of this industry and favoring its sustainability.
纺织工业是最大的用水行业之一，其生产活动会产生大量废水。在本研究中，采用正向渗透技术来满足处理纺织废水的迫切需求。使用HFFO2膜（水通道蛋白）处理大量实际的棉印染废水、羊毛印染废水以及几种纺织终端废水。在所有情况下，该过程的大部分时间内渗透通量在6至8 L·h·m之间。从每种废水中回收的清水超过90%，而该膜对总溶解固体的截留率超过87%。结果，纺织染料被浓缩在膜的进料侧，这使得它们能够被回收，并有可能在后续染色过程中与再生水一起重新利用。通过反冲洗过程对HFFO2膜进行了有效清洗，恢复了初始水通量。这些结果表明正向渗透技术适用于从纺织废水中回用染料和水，减少该行业对环境的影响并促进其可持续发展。
