In recent times two or more desalination processes have been combined to form integrated systems that have been widely used to resolve the limitations of individual processes as well as producing high performance systems. In this regard, a simple integrated system of the Multi Effect Distillation (MED)/Thermal Vapour Compression (TVC) and Permeate Reprocessing Reverse Osmosis (PRRO) process was developed by the same authors and confirmed its validity after a comparison study against other developed configurations. However, this design has a considerable amount of retentate flowrate and low productivity. To resolve this issue, two novel designs of MED and double reverse osmosis (RO) processes including Permeate and Retentate Reprocessing designs (PRRP and RRRO) are developed and modelled in this paper. To systematically assess the consistency of the presented designs, the performance indicators of the novel designs are compared against previous simple designs of MED and PRRO processes at a specified set of operating conditions. Results show the superiority of the integrated MED and double permeate reprocessing design. This has specifically achieved both economic and environmental advantages where total productivity is increased by around 9% and total retentate flowrate (disposed to water bodies) is reduced by 5% with a marginally reduced energy consumption.

中文翻译：

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海水淡化MED-TVC和反渗透系统集成的创新设计：过程说明和性能评估

近来，两个或多个脱盐工艺已结合在一起以形成集成系统，该系统已被广泛用于解决单个工艺的局限性以及生产高性能系统。在这方面，同一作者开发了一个简单的多效蒸馏（MED）/热蒸汽压缩（TVC）和渗透物再加工反渗透（PRRO）过程的集成系统，并在与其他已开发配置进行比较研究后证实了其有效性。然而，这种设计具有相当大的截留流量并且生产率低。为解决此问题，本文开发并建模了两种新颖的MED设计和双反渗透（RO）工艺，包括渗透液和截留液再处理设计（PRRP和RRRO）。为了系统地评估所提出设计的一致性，在指定的一组操作条件下，将新颖设计的性能指标与MED和PRRO工艺的先前简单设计进行了比较。结果显示了集成MED和双渗透物后处理设计的优越性。这特别实现了经济和环境优势，其中总生产率提高了约9％，总滞留物流量（分配给水体）降低了5％，同时能耗略有降低。