Which chemicals are used in the treatment of sewage?
Ever one value sewage treatment for both personal and environmental reasons. In order to safely return treated water back into the environment, sewage treatment plants employ sophisticated procedures that use a variety of chemicals to remove toxins, pollutants, and other organic components from the water.
In order to disinfect the water and maintain a stable pH level, sewage treatment plants use a number of procedures, such as biological and chemical processing, which call for the employment of different chemicals.
Let’s understand the chemicals used for water and sewage treatment.
· Chemical Coagulants
Chemical coagulants are substances with an iron or aluminium base that help remove pathogens, fluoride, organic pollutants, and other contaminants.
By delivering a positively charged coagulant that lessens the negative charge of the wastewater particles, they attempt to destabilize the particles. Larger bodies made of waste particles can be removed through purification.
· Flocculation
In sewage treatment facilities, flocculants help remove very small particles by charge bridging and magnetic neutralization. The use of flocculants promotes the formation of waste particle clumps or flocs, which can settle away during the sedimentation process.
· Neutralizing the pH of the water
Basic chemicals like alkalis and other acidic acids can be added to the water, to improve pH control of the effluent.
· Chemicals for cleaning and degreasing
Before being discharged back into the environment, water at a sewage treatment facility contains oil and grease residue, which needs to be processed. Grease can be broken down by solvent chemicals, making grease removal simpler.
· Process of chemical oxidation
In wastewater engineering, chemical oxidation is a method used to change contaminants into less dangerous molecules. The wastewater is cleaned as a result of this.
Reducing agents like sodium bisulphite, sodium hydrosulphite, and other substances are used to lessen the effects of hydrogen peroxide, chlorine antibiotics, and other compounds in the sewage.
· Eliminating heavy metals using chemical precipitation
Heavy metal elimination from wastewater can be accomplished using chemical precipitation. Add the precipitation reagent to the water to prevent contamination.
Heavy metals are ionically bound to the reagent to create solid particles. The water is subsequently purified by filtration to remove these solid impurities.
· Elimination of odour
The odour of the water is frequently brought on by certain hazardous pollutants. Effective wastewater treatment techniques include iron salts, biofiltration, oxidants, and other technologies to maintain the sewage's aroma.
· Sewage defoamer and anti-foamer usage
During the wastewater treatment process, foam and trapped air are both reduced with the help of a defoaming agent, a chemical preservative.
Antifoaming agents stop the formation of new foam whereas defoaming agents dissolve any existing foam. Silicone is most frequently used as a defoaming agent.
Conclusion
To process and recycle wastewater, sewage treatment facilities, and other industrial water treatment plants all need to use a variety of various technologies and chemicals.
To treat the effluents in the wastewater, these approaches call for the cautious treatment of a number of chemicals, thus understanding the physics and rationale behind them is necessary.
What do we offer?
It is advantageous to have a professional wastewater specialist since they have a better understanding of the issue, and can help you navigate complex chemical operations. Industrial wastewater treatment facilities are also responsible for following the various government requirements, while treating wastewater.
When it comes to treating wastewater, sewage, and other industrial water for reuse, Netsol Water is always one step ahead of the competition. For further information or to make a purchase, please contact us at +91-9650608473 or enquiry@netsolwater.com