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首页> 外文期刊>Journal of Environmental Science and Health >Model-based performance and energy analyses of reverse osmosis to reuse wastewater in a PVC production site
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Model-based performance and energy analyses of reverse osmosis to reuse wastewater in a PVC production site

机译：基于模型的反渗透性能和能量分析，可重复使用PVC生产现场的废水

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A pilot-scale reverse osmosis (RO) followed behind a membrane bioreactor (MBR) was developed for the desalination to reuse wastewater in a PVC production site. The solution-diffusion-film model (SDFM) based on the solution-diffusion model (SDM) and the film theory was proposed to describe rejections of electrolyte mixtures in the MBR effluent which consists of dominant ions (Na+ and Cl-) and several trace ions (Ca2+, Mg2+, K+ and SO42-). The universal global optimisation method was used to estimate the ion permeability coefficients (B) and mass transfer coefficients (K) in SDFM. Then, the membrane performance was evaluated based on the estimated parameters which demonstrated that the theoretical simulations were in line with the experimental results for the dominant ions. Moreover, an energy analysis model with the consideration of limitation imposed by the thermodynamic restriction was proposed to analyse the specific energy consumption of the pilot-scale RO system in various scenarios.
机译：在膜生物反应器（MBR）之后开发了中试规模的反渗透（RO），用于脱盐以在PVC生产现场中再利用废水。提出了基于溶液扩散模型（SDM）和膜理论的溶液扩散膜模型（SDFM），以描述MBR流出物中电解质混合物的排斥，该MBR流出物中的离子由主离子（Na +和Cl-）和一些痕量离子组成。离子（Ca2 +，Mg2 +，K +和SO42-）。通用全局最优化方法用于估计SDFM中的离子渗透系数（B）和传质系数（K）。然后，基于估计的参数评估了膜的性能，这些参数表明理论模拟与优势离子的实验结果一致。此外，提出了一种考虑热力学限制条件的能量分析模型，以分析中试规模反渗透系统在各种情况下的单位能耗。

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