High-concentration organic wastewater has become a great challenge for wastewater treatment due to its toxicity and non-biodegradability. Traditional water treatment methods focus on removing or destroying organic pollutants rather than considering the high-concentration organic wastewater as a resource. As an ambitious sustainability goal, resource recovery from wastewater to achieve zero liquid discharge (ZLD) has attracted widespread attention. Here, a hydrate-based method is proposed to treat textile wastewater to facilitate the reuse of dyes and enhance water reclamation. The mechanism of interaction between hydrate and organic pollutants was invested. The results show that organic pollutants are rejected from the growing hydrate lattice and concentrated in the residual solution. This method can achieve a max removal efficiency of 93.6% and a water production rate of 80%. In the range of 0–2000 mg/L, the concentration of organic pollutants does not affect the removal effect and water production rate. The concentrated dye can be reused again. The proposed method exhibits potential for recovering resource and clean water from wastewater while achieving ZLD.

高浓度有机废水由于其毒性和不可生物降解性，成为废水处理的巨大挑战。传统的水处理方法侧重于去除或破坏有机污染物，而不是将高浓度有机废水视为资源。作为一个雄心勃勃的可持续发展目标，从废水中进行资源回收以实现零液体排放（ZLD）已引起广泛关注。这里，提出了一种基于水合物的方法来处理纺织废水，以促进染料的再利用并增强水的回收利用。研究了水合物与有机污染物之间的相互作用机制。结果表明，有机污染物被不断增长的水合物晶格所排斥，并集中在残留溶液中。该方法最大去除效率可达93。6%，产水率为80%。在0～2000mg/L范围内，有机污染物浓度不影响去除效果和产水率。浓缩后的染料可以再次重复使用。所提出的方法具有从废水中回收资源和清洁水同时实现零排放的潜力。