水处理中反渗透预测时的水力阻力模型

Model of Hydraulic Resistance When Forecasting Reverse Osmosis in Water Treatment.

作者信息

Piekutin Janina, Kotowska Urszula

机构信息

Department of Technology in Environmental Engineering, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, 45A Wiejska Street, 15-351 Bialystok, Poland.

Department of Analytical and Inorganic Chemistry, Faculty of Chemistry, University of Bialystok, Ciołkowskiego 1K Street, 15-245 Bialystok, Poland.

出版信息

Membranes (Basel). 2021 Apr 25;11(5):314. doi: 10.3390/membranes11050314.

DOI:10.3390/membranes11050314

PMID:33923076

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8146110/

Abstract

The article presents research on the treatment of infiltration water with increased ammonium ion and nitrate(V) content through reverse osmosis. Then, research was conducted on the phenomena related to the decrease in the permeability of the membrane used for the research. The search for an appropriate interpretation of the phenomena was carried out using mathematical modeling. Based on the assumptions of the hydraulic model of the filtration resistance, calculations were made to forecast the efficiency of the osmotic membrane used in the discussed process. For this purpose, the following indicators were determined experimentally for the membrane: change in the volumetric flow of treated wastewater during low-pressure filtration, total hydraulic resistance, and component resistances, i.e., the resistance of the "new" membrane and resistances resulting from the reversible and irreversible fouling phenomena. It has been observed that irreversible resistance arises in the short and early stages of the process. The efficiency is determined by reversible resistance, which is confirmed by the literature.

摘要

本文介绍了通过反渗透处理铵离子和硝酸根（V）含量增加的渗透水的研究。然后，对与研究中使用的膜的渗透性降低相关的现象进行了研究。利用数学建模对这些现象进行了适当的解释。基于过滤阻力的水力模型假设，进行了计算以预测所讨论过程中使用的渗透膜的效率。为此，通过实验确定了膜的以下指标：低压过滤期间处理后废水的体积流量变化、总水力阻力和各组分阻力，即“新”膜的阻力以及由可逆和不可逆污染现象产生的阻力。据观察，不可逆阻力在该过程的早期短时间内就会出现。效率由可逆阻力决定，这一点已得到文献证实。