How to Purify Drinking Water

In order to provide safe, high quality drinking water, water utilities worldwide must adhere to strict requirements and regulations. Failure to comply with these stringent regulations can have serious financial, reputational and health consequences. Companies follow a rigid drinking water treatment process to purify, coagulate, filter, and disinfect it with various chemicals such as polyaluminum chloride (PAC) before it can be consumed.

There are many grades of polyaluminum chloride on the market with varying aluminum concentrations, usually 9.5% to 18%. When choosing which grade to use, you can consider other factors compared to the aluminum concentration.

Commercial grade PAC tend to have a higher level of basification. This is the degree of concentration of hydroxyl groups after aluminum ions. As a guideline when using PAC, the higher the basicity, the higher the efficiency, the cationic charge density and the value of the polymer. Polyaluminum coagulants are increasingly reaching portable water treatment systems.In several cases, the use of alkali turned out to be unnecessary in the pH adjustment after the treatment, as this not only has an optimistic effect on the water quality, but also on the saving of production costs and maintenance effort.

Aeration 

First, the raw water is collected in an aeration tank. During the aeration process, CO2 and bad odors are removed from the water by supplying compressed air to the tank through perforated pipes. This technique also removes metals like manganese and iron.

Billing or storageIn this procedure, you will find a gravity sand filter that will help remove approximately 99% of the contaminants and microorganisms. This water filter is a rectangular tank that contains three layers of the filter bed.

Filtered water is collected at the end of the filter. In an assortment tank During this filtration method, the filter bed is given a viscous layer called the main layer, which contains bacteria, diatoms and algae, these microorganisms oxidize the organic matter remaining in the water while filtering the microbial cells. If there is still an unpleasant smell in the water, the activated carbon can be placed in the filter to remove it.

Disinfection

In the last step, this filtered water is cleaned with the aid of disinfectants such as chlorine. These disinfectants help kill pathogenic microorganisms and other contaminants. Finally, the purified water is placed in an upper tank for distribution.They represent the most important steps in the purification of drinking water to ensure that it is safe for public use. Water companies are actively looking for inexpensive and efficient solutions to remove the containment present in the water and to maintain high standards and quality of the drinking water.

If you want to find some other chemicals for purification of drinking water, we can also supply, such as, powder flocculant polyacrylamide, etc.