Water is considered a scarce resource. Despite its apparent abundance, very little water is available for human consumption. Fortunately, modern technology is helping to improve the collection and purification of water, effectively increasing availability and potentially saving lives. Naturally, the best washing and clarification procedures are used to ensure all undesirable elements are removed from the water.
Here’s what you need to know.
Purification & Filtration Plants Explained
Water purification is the process of removing minerals and chemicals from water. In some cases, the elements being removed are toxic. In others, there are simply high quantities of undesirable minerals and contaminants.
Purification methods are designed to clean water, providing safe water for people to drink. The most common option is distillation. Water is heated until boiling point. It becomes a vapor which travels upward. It then hits a cooler surface and the steam becomes water again. In the process, all contaminants are eliminated.
In contrast, filtration simply means passing the liquid through filters which are designed to allow water through and capture anything else. In both cases, the slurry is usually screened to eliminate large debris before the filtration process is completed.
In industry, the most common example of a filter is the filter press. This large machine is often used with slurry produced when mining or creating concrete. It consists of a large holding container which automatically maintains the slurry at the right consistency.
This is then fed through two plates pressed together. These sometimes include inflatable elements to ensure every drop of water is squeezed out of the slurry.
The solid residue remains in the tanks and can be removed. The extracted water then goes through a series of filters, removing any remaining contaminants and creating pure water.
In short, purification seeks to eliminate contaminants in water via the use of distillation, filtration removes the contaminants through the use of mechanical or even chemical processes. For example, reverse osmosis is an effective way to remove minerals from water. It utilizes nature and the natural desire for heavy molecules to collect in the same place.
Applications For Filtration & Purification
Filtration and purification are commonly used to extract contaminants from water, leaving you with clean and pure water. However, that’s not the only application for this technology.
Machines have been designed to filter materials, including substances like coal or even gravel. The machines are capable of separating the materials, effectively creating a collection of recyclable materials.
The level of filtration required determines the type of machine you need to order. It’s possible to filter out very fine sand in slurry and recover it.
The applications are numerous. However, it’s worth noting that dry screening was the
norm. Today, this has been replaced with washing and filtering these substances. It’s more effective at cleaning the product and creates less waste
Summing Up
If you’re dealing with water, regardless of what material it is trapped in, a good filtration or purification system is essential. The only question is which method is best suited to your needs.
