More than 1 billion people around the world lack access to fresh water. According to the report from World Health Organization, by 2025, half of the world’s population will be living in water-stressed areas. In order to solve the problem, some wealthy areas have invested in water desalination plants, which can transform salt water into clean drinking water. However, these plants are too expensive to afford for most communities.
- Now, Jia Zhu at Nanjing University in China has come up with a solar-powered technique that could make small-scale desalination system affordable.
- The approach is based on an old technology called solar still. Since sun evaporates water very slowly, the throughput is a problem.
- To fix the problem, researchers have tried topping the salt water with floating films dotted with nano-sized metal particles, and Zhu’s team tried to work with aluminum, instead of conventional gold.
- Normally, aluminum is good at absorbing only ultraviolet light. But Zhu’s team broadened this absorption in two steps and making aluminum worked like gold particles.
- The approach worked very well and the researchers were able to purify salt water up to three times faster compared to the conventional solar still.
- Government department which is responsible for the city residency’s water supply
- Energy companies that aim at the utilization of solar energy
- Utility companies
Step 1: Introduce this new technology via variety of methods to government and energy companies.
Step 2: Set up workshop and studio to show the audience about the feasibility and potential of the technology.
Step 3: Establish a corporation relationship with the government which is in the water-stressed area.
UNI – wy2283