Reverse Osmosis (RO) process has become one of the most widely utilised technologies for brackish water desalination for its capabilities of producing high-quality water. This paper emphasis on investigating the feasibility of implementing the retentate recycle design on the original design of an industrial medium-sized multistage and multi-pass spiral wound brackish water RO desalination plant (1200 m³/day) of Arab Potash Company (APC) located in Jordan. Specifically, this research explores the impact of recycling the high salinity stream of the 1^st pass (at different recycled percentages) to the feed stream on the process performance indicators include, the fresh water salinity, overall recovery rate, and specific energy consumption. The simulation is carried out using an earlier model developed by the same authors for the specified RO plant using gPROMS suits. This confirmed the possibility of increasing the product capacity by around 3% with 100% recycle percentage of the high salinity retentate stream.

反渗透（RO）工艺因其产生高质量水的能力而成为微咸水淡​​化的最广泛使用的技术之一。本文重点研究在位于阿拉伯钾肥公司（APC）的工业中型多级和多程螺旋缠绕式微咸水RO淡化厂（1200立方米/天）的原始设计上实施截留物再循环设计的可行性。约旦。具体而言，该研究探讨回收1的高盐度流的影响，^ST在过程性能指标上（以不同的再循环百分比）传递到进料流，包括淡水盐度，总回收率和比能耗。使用由相同作者针对指定RO工厂使用gPROMS套装开发的较早模型进行模拟。这证实了将高盐分截留物流的100％回收百分比提高产品产能约3％的可能性。