Water Desalination

Introduction to Desalination Systems

Water desalination and purification are key stages in supplying usable water resources for industries, power plants, petrochemical units, food industries, and municipal drinking water. This process is designed and implemented to remove dissolved salts, water hardness, and harmful minerals from brackish water, saline water, and even seawater, ensuring stable, high-quality water suitable for industrial processes and human consumption.

At Atieh Pardazan Sharif Holding, desalination and water purification systems are engineered in accordance with the operational requirements of each project to ensure not only the desired water quality but also energy efficiency and long-term process sustainability.

Industrial Water & Wastewater Treatment

Reverse Osmosis (RO)

Reverse Osmosis (RO) is one of the most common and advanced desalination technologies, utilizing semi-permeable membranes to remove salts, hardness, heavy metals, and dissolved contaminants. In this process, water is forced under pressure through the membrane, while dissolved salts are retained on the other side.

RO is particularly suitable for projects requiring high salt removal efficiency and precise water quality control. RO systems designed by Atieh Pardazan Sharif ensure high salt rejection efficiency and long equipment life through accurate pressure, flow, and membrane quality control. The use of proper pre-treatment systems, such as MF and UF, before RO reduces membrane fouling and enhances operational stability.

Electrodialysis Reversal (EDR)

Electrodialysis Reversal (EDR) is another desalination technology that uses ion-selective membranes and an applied electric field to separate dissolved ions from the water stream. This method is highly suitable for waters with low to moderate salinity and for applications requiring partial salt removal and hardness control.

The main advantages of EDR include lower energy consumption, reduced scaling, and continuous operation with minimal chemical cleaning requirements. In sensitive industries such as pharmaceuticals, food processing, and power plants, EDR is applied as an economical and sustainable solution for supplying high-quality water.

Multi-Effect Distillation (MED)

Multi-Effect Distillation (MED) is a thermal desalination method based on evaporation and condensation. In this process, water is evaporated in multiple stages under different pressures and temperatures, and the generated vapor is condensed in subsequent stages to produce fresh water.

MED is particularly suitable for high-salinity waters, especially seawater and highly saline industrial wastewater. By utilizing surplus thermal energy, such as power plant steam or solar heat, MED can operate efficiently and economically. MED systems designed by Atieh Pardazan Sharif ensure high efficiency and long equipment life through precise control of temperature, pressure, and vapor flow.

Industrial Applications of Water Desalination

Desalination systems are widely used across various industries. In power plants and petrochemical industries, water required for cooling and industrial processes is supplied through RO, EDR, or MED systems. In the food and pharmaceutical industries, the quality of treated water is critical, and these systems ensure compliance with health and quality standards. They are also extensively used in municipal drinking water supply and high-quality industrial water production through combined desalination technologies to deliver stable and precise water specifications.

Benefits of Desalination Systems

The use of RO, EDR, and MED systems reduces water hardness and salinity, removes dissolved contaminants, improves downstream system performance, and extends equipment life. These technologies help industries reduce energy consumption, maintenance costs, and environmental impacts while ensuring sustainable and economical process performance.

Design, Construction & Standards

At Atieh Pardazan Sharif Holding, desalination systems are designed based on feed water quality, salinity, chemical composition, required flow rate, and project quality objectives. All equipment is selected and implemented in accordance with recognized international standards such as ASME, ASTM, API, and environmental regulations to ensure safe, reliable, and sustainable system performance.

Conclusion

Water desalination using advanced technologies such as Reverse Osmosis, Electrodialysis Reversal, and Multi-Effect Distillation provides an effective and economical solution for supplying stable, high-quality water across various industries. Precise engineering design, appropriate technology selection, and adherence to international standards play a decisive role in the long-term and optimal performance of these systems.