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This innovation will reclaim salt from highly concentrated saline water, such as reverse osmosis reject water containing up to 80 g/L of salt, and improve water sustainability.
About
Highly concentrated saline water from reverse osmosis treatment wastes and other industrial processes remains challenging to manage. Re-use in domestic, agricultural, or construction applications is limited due to the dispersed waste locations, logistic constraints, and lack of enabling infrastructures. On the other hand, treatment techniques such as membrane filtration and electrodialysis are not only expensive but also result in briny liquid wastes or products.
Thermal evaporative treatment and low-temperature crystallisation offer zero (saline) liquid discharge (ZLD), minimising wastewater discharge and meeting strict environmental regulations. Our innovation focuses on enhanced evaporative techniques that increase the rate of water and salt recovery. The process equipment and operational conditions are customised to meet specific physicochemical properties of meat processing
We propose proceeding in two phases. Phase 1 will involve characterising saline water from the meat processing industry (to understand the specific process improvement required) and lab-scale demonstration of our solution. Subsequently, Phase 2 will focus on proof-of-scale, front-end engineering (FEED) and techno-economic analyses.
Key Benefits
The benefits of our enhanced evaporative solution include:
- Increased rate of water and salt recovery.
- Low energy requirement.
- Simplicity and scalability.
- Adaptability to waste heat recovery systems. Can incorporate waste heat from other industries.
- Environmental compliance.
- Cross-sector application.
Applications
Our technology is applicable to the following stakeholders:
- Meat processing industry.
- Hospitals and health care facilities that rely on a reverse osmosis plant.
- Water cooperation.
- Shires and local governments.
- Maritime and offshore facilities that depend on a reverse osmosis plant.