1 results about "Micro technology" patented technology

This invention discloses a non-destructive testing method and system for reverse osmosis membrane element defects based on micro-CT, belonging to the field of non-destructive testing technology for water treatment membrane materials. This invention uses high-resolution micro-CT technology to perform three-dimensional structural analysis of reverse osmosis membrane elements, achieving non-destructive testing of back pressure damage and membrane fouling within spiral-wound membrane elements. During membrane element testing, CT scan images on the concentrate side showed fine cracks at the membrane bag bonding joint, indicating back pressure damage to the membrane element, leading to a significant reduction in its desalination performance. Actual measurements revealed that the thickness of the concentrate separator in the membrane element was 0.69 mm (nominal value 0.86 mm), indicating that membrane fouling caused channel blockage, thus significantly reducing permeate yield. This invention's method can deeply reveal microstructural defects within the membrane element, obtaining non-destructive three-dimensional image data, providing a non-destructive testing method for solving the problems of back pressure damage and membrane fouling in reverse osmosis membranes.