The nanofiltration (NF) membrane separation system for nuclear power is a high-precision solution designed for primary circuit water treatment in nuclear power plants.
It specifically addresses the issue of high dissolved silica in borated water systems. By using highly selective nanofiltration membranes, the system effectively separates silica from boric acid. This helps ensure safe reactor operation while minimizing the impact of impurities on the system.
The system features high recovery efficiency and low discharge, meeting the strict requirements of the nuclear industry for water quality and operational stability.
The system is based on the selective separation properties of nanofiltration membranes, enabling precise control of dissolved components in water.
Nanofiltration membranes have a defined pore structure that allows water molecules and small solutes to pass through, while effectively retaining larger molecules and colloidal forms of silica and its polymers.
During operation, the membrane separation process reduces the concentration of dissolved silica, maintaining silica levels at approximately 400 ppb in the system. At the same time, it minimizes the loss of boric acid, preserving the system’s reactivity control capability.
In addition, the concentration and separation process reduces the volume of liquid waste discharge, lowering environmental impact and improving overall resource efficiency.
• High selectivity: Effectively separates dissolved silica from boric acid, reducing interference between similar components
• High recovery efficiency: Enables high boric acid recovery and reduces radioactive waste generation
• Strict water quality control: Meets the stringent purity requirements of nuclear power systems, ensuring safe equipment operation
• High level of automation: Supports fully automatic operation and one-touch control, reducing human error
• Energy-efficient performance: Achieves stable and efficient separation with relatively low energy consumption
• Primary circuit water treatment in nuclear power plants: Controls reactivity and prevents silicate deposition, ensuring safe and stable operation
• Energy industry water treatment: Suitable for systems requiring strict water quality control, improving operational reliability
• Boron- and silica-containing wastewater treatment: Used for separation and removal of boron and silica in industrial wastewater
• Environmental protection projects: Reduces liquid waste discharge and minimizes environmental impact
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