1. Features
Ultra-high Desalination Rate:The core technology relies on reverse osmosis (RO) membranes, achieving a removal rate of over 99.5% for salts and heavy metal ions in raw water. Some systems, combined with EDI (electrodeionization) technology, can achieve ultrapure water-grade desalination.
Strong Adaptability and Fouling Resistance: Adaptable to various raw water sources including groundwater, tap water, and industrial wastewater. Membrane modules are primarily made of fouling-resistant materials, and the pretreatment system can specifically remove colloids and organic matter, ensuring stable operation.
High Efficiency, Stability, and Scalability: The system adopts a modular design, resulting in high water production efficiency and minimal water quality fluctuations. Membrane modules can be flexibly added to meet varying industrial water usage scales as production expands.
High Automation: Equipped with a PLC automatic control system, it can monitor parameters such as pressure, flow rate, and water quality in real time, enabling automatic start-up, shutdown, flushing, and fault alarms, reducing manual maintenance costs.
Environmentally Friendly and Water-Saving: Compared to traditional ion exchange methods, it eliminates the need for frequent use of acid and alkali regenerants, reducing pollution emissions. Some systems incorporate concentrate recovery processes, improving water resource utilization.
2. Working Principle
The core process is a combination of “pretreatment + core desalination + deep purification (optional)”:
Pretreatment Purification: Raw water first passes through a PP cotton filter to remove large particles such as silt and rust; then, activated carbon adsorbs residual chlorine, odors, and some organic matter; finally, it passes through a softener (to remove hardness) and a precision filter (to filter micron-sized suspended solids), ensuring that the water quality entering the core system meets the requirements of the membrane modules and preventing membrane clogging or damage.
Core Desalination (RO System): The pretreated water enters the reverse osmosis system. Under the pressure provided by the high-pressure pump, water molecules penetrate the semi-permeable reverse osmosis membrane, becoming low-salt “product water”; while salts, heavy metals, and large molecular pollutants are retained by the membrane, forming “concentrate water” which is discharged.
Deep Purification: If higher purity is required (such as in the electronics and pharmaceutical industries), the product water enters the EDI system. Through the action of an electric field, ions in the water migrate directionally to the resin. The resin can continuously remove ions without acid or alkali regeneration, further reducing resistivity and producing ultrapure water.
3. Related Equipment: Ultrafiltration unit, reverse osmosis desalination unit, EDI.
