Team:SJTU-BioX-Shanghai
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Problem
Global water shortage problem has never been more serious ever.Right now, more than one in six people globally do not have access to safe drinking water (United Nations, 2006). Furthermore, the misuse of water source such as underground water has caused serious damage to the environment.
Seawater is considered as a water source with great capacity and its desalination industry is expected to be one of the most important solutions tackling water shortage problem. However, there's still improvement needed on energy consumption and equipment requirement to make seawater desalination truly a world-wide technology.
Solution
The mechanism of RO method can be explain through two parts: membranes and pressure.
First, RO membranes are special membranes. Its layered, web-like structure only allows water to pass through by a tortuous pathway. Unlike nanofiltration (NF), ultrafiltration (UF) or micro-filtration (MF), RO membrane reject the smallest contaminants, monovalent ions. This properties allows this kind of membrane to process seawater desalination and even other filtration process requiring removal of monovalent ions.
The other important elements of RO method is osmotic pressure. In a normal status, water molecules always move from low salinity area to high salinity area.
Highlight
- We express the related protein of our part in its right position. It proves the device is built successfully.
- We prove that our device work as a desalintor in lab condition .
- We design how it will merge into original method, and explain some key part of our design how it works.
- We design how it will merge into original method, and explain some key part of our design how it works.
