A Case Study on Recycling Industrial Wastewater with Nanofiltration Membrane Separation Technology

Abstract

In this study, the performance of different membrane materials for treating wastewater discharged by Eternal Electronic (Suzhou, China) Co., Ltd. was analyzed. NF90 membrane was selected to have the best treatment effect under the conditions of 150 psi, 25 °C, and 1 L/min, and the treated wastewater reached the standard of circulating cooling water. The problem of membrane contamination was effectively solved by cleaning with an HCl solution. This study aims to provide enterprises with environmental solutions to meet environmental management requirements and to provide a valuable reference for similar wastewater treatment projects. This method is helpful in relieving the pressure on water resources and has positive significance for the protection and sustainable utilization of water resources in society.