A nanofiltration membrane module for acid and alkali resistant and high-salt wastewater

By introducing a water quality monitoring and automatic neutralization system into the wastewater nanofiltration membrane module, the corrosion problem of filter membranes by acidic, alkaline, and high-salt wastewater is solved, achieving efficient wastewater pretreatment and ensuring the stability and treatment effect of the filter membrane.

CN224619745UActive Publication Date: 2026-08-11DALTON MEMBRANE TECH (SHENZHEN) CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202521855024.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-08-11
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

Wastewater containing acidic, alkaline, or high-salt components is prone to corrosion of the filter membrane material during filtration, leading to filtration system failure, ineffective filtration and purification, and increased treatment costs.

Method used

A nanofiltration membrane module for acid and alkali resistant and high-salt wastewater is adopted, which includes a water quality monitor, a stirring component and a neutralization treatment component. By monitoring the acidity, alkalinity and salinity of the wastewater, the neutralization solution is automatically adjusted to reduce the acidity, alkalinity or salinity of the wastewater. Combined with the stirring component, the reaction rate is improved, ensuring uniform mixing of the wastewater during pretreatment.

Benefits of technology

It effectively reduces the acidity, alkalinity, and salinity of wastewater, prevents filter membrane corrosion, improves neutralization efficiency, ensures that all indicators of wastewater meet the standards after pretreatment, avoids incomplete reactions, and extends the service life of the filter membrane.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This utility model discloses a nanofiltration membrane module for acid and alkali resistant high-salt wastewater, relating to the field of wastewater treatment technology. It includes a filtration chamber, inside which a nanofiltration membrane body is fixedly installed. The input end of the filtration chamber is fixedly connected to a wastewater pretreatment chamber, which includes a chamber body, a stirring assembly, a neutralization assembly, a water quality monitor, a wastewater output pipe, and a control terminal. In this utility model, the water quality monitor monitors the acidity, alkalinity, and salinity of the wastewater. The monitoring data is transmitted to the control terminal, which outputs corresponding control commands to open the corresponding secondary electrically controlled valve. The neutralization solution inside the solution storage tank enters the chamber body through the secondary electrically controlled valve and the solution output pipe, neutralizing the wastewater or settling salt ions in the wastewater, thereby reducing the acidity, alkalinity, or salinity of the wastewater and preventing corrosion of the nanofiltration membrane body.
Need to check novelty before this filing date? Find Prior Art