Seawater Desalination Project for Islands in Fuzhou, Fujian

Seawater Desalination Project for Islands in Fuzhou, Fujian

Project Overview

Project Name: Fuzhou Island Seawater Desalination Project, Fujian, China

Due to its geographical location and climate conditions, the island has limited freshwater resources. With population growth and economic development, local demand for freshwater has continued to increase.

To address this shortage, a large-scale seawater desalination project was developed using advanced desalination equipment supplied by Meigu Environmental Protection Company.

Project Objectives

  • Provide a stable and reliable freshwater supply for local residents
  • Support local economic development and create employment opportunities
  • Improve water resource utilization efficiency
  • Reduce environmental impact

Seawater Desalination Solution

MSF and RO Desalination Technology

After technical evaluation, the project adopted a combined Multi-Stage Flash (MSF) and Reverse Osmosis (RO) desalination process.

MSF technology is suitable for treating seawater under high-temperature and high-salinity conditions, while RO technology effectively removes dissolved salts and impurities to ensure stable freshwater quality.

Main Treatment Process

The complete seawater desalination system includes:

Seawater Intake → Pretreatment → MSF/RO Desalination → Post-Treatment → Freshwater Storage → Water Distribution

Professional engineering teams handled equipment installation, commissioning, and system optimization to ensure reliable operation.

Operation and Maintenance

After commissioning, a professional operation team was responsible for daily system management, inspection, and maintenance.

Regular equipment servicing helps maintain stable desalination performance and consistent product water quality.

Project Results

The seawater desalination project successfully:

  • Improved the local freshwater supply
  • Reduced pressure caused by water scarcity
  • Supported regional economic development
  • Created local employment opportunities
  • Improved overall water utilization efficiency

Challenges and Solutions

Brine Disposal

Challenge: Concentrated brine generated during desalination may affect the surrounding environment.

Solution: A dedicated brine treatment system was installed to further process concentrated seawater before discharge in accordance with applicable environmental requirements.

Harsh Climate Conditions

Challenge: High temperatures, typhoons, and other severe weather conditions can affect desalination equipment operation and maintenance.

Solution: Equipment with strong heat resistance and corrosion resistance was selected, combined with enhanced routine inspection and preventive maintenance.

Project Significance

The successful implementation of the Fuzhou seawater desalination project provides a practical solution for regions facing freshwater shortages.

By combining advanced MSF and reverse osmosis seawater desalination technologies with environmental protection measures, the project demonstrates how seawater can be converted into a reliable freshwater resource while improving water-use efficiency.