Treatment Scale: 200 m³/h (DTRO)
Process Composition: High-efficiency Clarifier + High-efficiency Cyclone + Chemical Softening + UF + RO + Variable Pore Filter + Multi-media Filter + Decarbonizer + NF + DTRO + Coagulation Sedimentation + MF + AOP Oxidation + MVR Forced Evaporation Crystallization
Project Overview:
With a total treatment capacity of 1900 m³/h, this project realizes full-volume mine water treatment and achieves the goal of mine water zero discharge. The system is divided into two sections: the 1900 m³/h mine water pretreatment system (4 sets of 225 m³/h high-efficiency clarifiers + 5 sets of 200 m³/h high-efficiency cyclones) and the 1900 m³/h mine water advanced treatment system, which adopts a three-stage process of pretreatment softening, membrane concentration and concentrated water evaporation crystallization. The DTRO subsystem has a designed capacity of 200 m³/h, consisting of 5 sets of equipment with 180 DTRO membranes per set (900 membranes in total). Each DTRO unit has a treatment capacity of 40 m³/h with a 50% designed recovery rate, delivering a total product water flow of 100 m³/h.
Influent Water Quality Analysis：
| Item | Feed Water | Concentrate Water | Permeate Water |
| TDS (mg/L) | 63000 | 124000 | ≤1000 |
| SO₄²⁻ (mg/L) | 35200 | 70000 | - |
| Na⁺ (mg/L) | 16800 | 33500 | - |
| Conductivity (μs/cm) | 55000 | 100000 | 1000 |
| Operating Pressure | 60 bar | 54 bar | - |
