Implementing forward osmosis (FO) into textile wastewater treatment process can provide high value to an industry segment which is a large consumer of fresh water and one of the biggest polluters. In this study real textile wastewater was used as feed solution with 1M NaCl, 1M MgCl₂, blue dye mixture, and green dye mixture as draw solution in FO. Pre-determined concentrations of green and blue dye mixtures based on final desired concentrations (for further use in dyeing process), gave comparable water flux with 1M NaCl and 1M MgCl₂, however, slightly higher reverse salt flux values were obtained with dyes compared to the inorganic salts. Long-term filtration followed by chemical cleaning of the FO membranes tested resulted in 100% flux recovery with negligible irreversible fouling. Membrane surface characterisation (zeta potential, contact angle, SEM and ATR-FTIR) confirmed efficient FO membrane cleaning and complete flux recovery. Rejection performance of the FO membranes for COD rejection was > 94% with up to 55% water recovery. The rejection of TDS, TSS, Zn²⁺, and SO₄^2- were all > 99%. Using the obtained results an OPEX/CAPEX analysis demonstrated the economic feasibility of using the FO process in textile wastewater treatment system.

在纺织品废水处理过程中实施正渗透（FO）可以为该行业提供高价值，该行业是淡水的大量消​​耗者，也是最大的污染源之一。在这项研究中，将真实的纺织废水用作进水溶液，其中1M NaCl，1M MgCl ₂，蓝色染料混合物和绿色染料混合物作为FO的汲取溶液。基于最终所需浓度的绿色和蓝色染料混合物的预定浓度（供染色过程中进一步使用），可提供与1M NaCl和1M MgCl ₂相当的水通量但是，与无机盐相比，染料获得的反向盐通量值略高。长期过滤，然后化学清洁测试的FO膜，可实现100％的通量回收率，并且可忽略的不可逆结垢。膜表面特性（ζ电位，接触角，SEM和ATR-FTIR）证实了有效的FO膜清洁和完全的焊剂回收。FO膜对COD排斥的排斥性能> 94％，水回收率高达55％。TDS，TSS，Zn ²⁺和SO ₄ ^2-的排斥率均> 99％。使用获得的结果，OPEX / CAPEX分析证明了在纺织废水处理系统中使用FO工艺的经济可行性。