What IS Desalination?

Desalination is the process of removing dissolved salt from water, thus producing fresh water from seawater or brackish water. Desalting technologies can be used for many applications

Why is Desalination Good?

Although there are high costs, energy intensiveness and bad for the environment, it is a last resort for providing fresh water to needy populations. Also, it is even more impactful because of global warming, which impacted some lands to be unusable as a fresh water resource.

How does Desalination Hurt the Environment and Water?

Desalination is a great resource for us humans but it could heavily impact our marine food chain. For example, facilities intake pipes essentially vacuum up and inadvertently kill millions of plankton, fish eggs, fish larvae and other microbial organisms that constitute and impact the marine food chain drastically. Also, after desalinating, the salt is then moved to bodies of water that can impact some crucial marine animals and also damage the food chain

What are the long term effects?

In this process, if too many microbial organisms are killed, it can create permanent damage to the marine food chain. The salt and fresh water removed and disposed back will also impact some animals and ultimately might create massive damage to the animals. Although, it might damage the food chain, there are going to be more and more humans on this earth so we would need more water, which this process could bring us. There are many negative effects to this but enough positive effects that can save many lives of the needy.

What Materials are needed?

Some essential materials are salt and fresh water, energy power, sea water, wells, waste water, driving forces pressure (applied and vapor), electric potential and concentration to overcome natural osmotic pressure and effectively force water through membrane processes.

Fun Facts

This is also a natural process too and is essential to the water cycle. Rain water falls to the ground and eventually flows to the sea, moving over and through the earthy dissolving minerals and other materials along the way.