With the rapid development of agriculture, controlling phosphorus emissions is a pressing challenge for preventing water eutrophication. A graphite-promoted cyclopentane (CP) hydrate-based desalination was proposed to remove K₃PO₄ from effluents. It was found via the in situ optical microscopy that the reaction temperature and the concentration of feeding K₃PO₄ solution significantly affect the morphologies and amount of the as-produced CP hydrate crystals. The lower reaction temperature produces more crystals with irregular shapes, while fewer crystals formed in K₃PO₄ solution with higher concentration. The reaction temperature, time and feeding concentration-dependent desalination and salt enrichment performances were studied. It was found that desalination efficiency linearly increases with the elevated reaction temperature ranging from -2 ^oC to 3 ^oC; however, water recovery declines with temperature. The temperature-dependent water recovery is due to the strong driving force for hydrate formation at low temperatures. The time-dependent water recovery shows a three-stage feature, including exponential growth, linear increase, and stable stages, owing to the interaction between the driving force of supercooling and the increasing K₃PO₄ concentration during the reaction processes. The desalination efficiency shows an inverted volcanic shape with the increased concentration of feeding K₃PO₄ solution. The pre-melting effect plays a critical role in improving desalination efficiency at high K₃PO₄ concentrations. A maximum desalination efficiency of 85.0% was reached for treating an artificial solution with salinity as high as 42452 mg/L. Both desalted water and concentrated phosphorus-containing solution can be recovered by this method, which is attractive for producing freshwater with potential for recovery of resources.

随着农业的快速发展，控制磷的排放是防止水富营养化的紧迫挑战。提出了一种石墨促进的环戊烷（CP）水合物脱盐技术，以去除废水中的K ₃ PO ₄。通过原位光学显微镜发现，反应温度和进料K ₃ PO ₄溶液的浓度显着影响所生产的CP水合物晶体的形态和数量。较低的反应温度会产生更多具有不规则形状的晶体，而在K ₃ PO _4中形成的晶体更少浓度较高的溶液。研究了反应温度，时间和进料浓度相关的脱盐和富盐性能。据发现，脱盐效率线性地升高的反应温度范围为-2增加^ø C至3 ^ö ℃; 但是，水的回收率随温度下降。与温度有关的水回收率归因于在低温下形成水合物的强大驱动力。由于过冷的驱动力和增加的K ₃ PO ₄之间的相互作用，随时间变化的水回收率表现出三个阶段的特征，包括指数增长，线性增长和稳定阶段。 反应过程中的浓度。随着进料K ₃ PO ₄溶液浓度的增加，脱盐效率显示出反向的火山形状。在高K ₃ PO ₄浓度下，预熔融效果在提高脱盐效率中起关键作用。处理盐度高达42452  mg / L的人工溶液时，最大脱盐效率达到85.0％。淡水和浓缩的含磷溶液都可以通过这种方法进行回收，这对于产生具有资源回收潜力的淡水是有吸引力的。