Step 1: Minimal Pre-treatment. Unlike standard spiral wound RO which requires complex UF or MBR pre-treatment, the DTRO system only requires basic sand filtration and a 10-micron cartridge filter. This is because the industrial DTRO module uses an open-channel flow path (2.5mm wide) that allows high levels of suspended solids and organics to pass through without causing physical blockage.
Step 2: High Pressure Pumping. Treating garbage leachate or high-concentration brine requires overcoming massive osmotic pressure. The pre-treated wastewater is pressurized by specialized high-pressure plunger pumps (up to 75-120 bar). These pumps are manufactured from Duplex stainless steel SS2205 to withstand the extremely corrosive nature of the leachate.
Step 3: DTRO Membrane Separation. The highly pressurized wastewater enters the DTRO column, flowing over a series of octagonal membrane cushions. The unique hydraulic dynamics created by the convex points on the deflector disks generate intense turbulence (Reynolds number > 2500), actively scouring the membrane surface and preventing bio-fouling and scaling. The turnkey leachate treatment plant successfully separates the toxic liquid into a clean permeate and a highly concentrated brine.
Step 4: MVPC Evaporation (For ZLD). For clients pursuing Zero Liquid Discharge (ZLD), the highly concentrated DTRO brine is sent to an MVPC (Mechanical Vapor Recompression) Evaporator. The evaporator utilizes a heat pump principle to boil the brine, recovering the vapor as pure distillate water, and leaving behind only solid salt crystals for landfill disposal. This combined DTRO + MVPC process achieves a >99% water recovery rate.
