A Low energy consumption water desalination system with intelligent brine management system
EGV-ZLD (Green Vacuum Desalination with Zero Liquid Discharge) is an innovative, sustainable desalination technology developed by Sustainable Green Energy Innovations (SGE) to address the global challenges of freshwater scarcity, high energy consumption, and environmentally harmful brine disposal.
The system utilizes low-temperature thermal energy (typically 50–65°C) from renewable solar thermal sources or industrial waste heat to produce high-quality freshwater through an energy-efficient vacuum evaporation and condensation process.
Unlike conventional thermal desalination systems, EGV-ZLD operates without high-pressure pumps, membranes, refrigerants, or chemical additives, significantly reducing operating costs, maintenance requirements, and environmental impact.
Core Invention
The core innovation of the EGV-ZLD system is based on two patented technologies that significantly improve the efficiency, reliability, and sustainability of thermal desalination:
1. Mechanical Vacuum Generation System
Instead of relying on conventional vacuum pumps or steam ejectors, EGV-ZLD employs a novel mechanical vacuum generation system that creates and maintains the low-pressure environment required for low-temperature evaporation. This innovation enables desalination at significantly reduced temperatures using low-grade renewable heat or industrial waste heat while lowering electrical energy consumption, simplifying system operation, and reducing maintenance requirements.
2. Anti-Scaling and Self-Cleaning System
EGV-ZLD incorporates an integrated anti-scaling and self-cleaning mechanism that continuously minimizes mineral deposition on heat transfer surfaces during operation. By preventing scale buildup without the routine use of chemicals, the system maintains high heat-transfer efficiency, extends equipment life, reduces downtime, and enables stable long-term operation even with high-salinity feedwater.
Together, these innovations enable a robust Zero Liquid Discharge (ZLD) desalination platform capable of producing freshwater with low energy consumption while recovering valuable salts instead of generating environmentally harmful brine waste.
SGE 