DTRO membrane, short for Disc Tube Reverse Osmosis membrane, is an important membrane technology with good treatment effect on high concentration wastewater. It is widely used in fields such as landfill leachate, industrial, chemical, and pharmaceutical wastewater. The reverse osmosis membrane sheet and the hydraulic flow guide disc are stacked together. Compared with traditional reverse osmosis, DTRO has wider channels, shorter processes, and high-speed turbulent flow characteristics, which can delay the occurrence of membrane blockage problems and increase the service life of the membrane.