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.