Analysis of a novel double-effect split mechanical vapor recompression systems for wastewater concentration

Shen, Jiubing; Tan, Niugao; Li, Zhichao; Zhang, Jingdong

doi:10.1016/j.applthermaleng.2022.119019

Cited by 16 publications

(1 citation statement)

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“…They considered the estimation of the principal thermal and geometrical characteristics of the evaporation system, and studied the most cost-effective SEE/MEE-MVR process design to achieve ZLD conditions. In 2022, Shen et al [ 30 ] proposed a novel double-effect staged MVR system. They used Aspen Plus simulation software (version 11) to build a model of the new double-effect staged MVR system and conducted simulation analysis on its energy consumption, operating costs, and compressor operating parameters.…”

Section: Introductionmentioning

confidence: 99%

Joint Modeling and Operational Optimization of a Reverse Osmosis–Mechanical Vapor Recompression System for Coal-Fired Power Plant Wastewater

Xie,

Zhao,

Jiang

et al. 2024

Membranes

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The operation of coal-fired power plants generates a large amount of wastewater. With the issuance of increasingly strict drainage standards, the cost of wastewater treatment is increasing, and the need to reduce the cost of wastewater treatment is becoming increasingly urgent. Thus, based on the principles of reverse osmosis (RO) and mechanical vapor recompression (MVR) in wastewater treatment, the operational optimization of an RO-MVR joint system was studied in this work with the consideration of reducing the operating costs of wastewater treatment under given operational conditions. Firstly, based on the basic principles of RO and MVR, corresponding mechanism models were established and their accuracy was verified. Then, an economic model of the RO-MVR joint system was established, with the goal of minimizing the water production unit price and daily operating costs of the joint system for optimization analysis. Finally, we analyzed the cost and water production performance of the RO-MVR joint system before and after optimization under different operating conditions. The results show that this optimization based on the RO-MVR joint system will reduce the unit price of water production to 3.16 CNY/m3, with the daily operating costs being decreased by 22% compared to before optimization. This result helps to reduce the cost of zero-discharge wastewater treatment in coal-fired power plants.

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Section: Introductionmentioning

confidence: 99%