Many sources of drinking water contain the contamination and need the right treatment to eliminate the disease-causing elements. Drinking water systems utilize numerous processes of water treatment to ensure people have safe drinking water.
Water treatment plants utilize a mixture of different steps, including disinfection, sedimentation, coagulation, and filtration, to clean and sanitize the water. PAC water treatment is widely used to treat water and make it suitable for consumption.
What is Water Treatment?
The process of water treatment includes different operations to reduce or eliminate contamination from the water. The water treatment aims to maintain all the right elements and features of the water for the intended use. Therefore, the process might vary depending on the properties and function of the water.
Water treatment has become more significant because of the shortages of drinking water around the globe and the increased need of the population. From all the water reserves on our planet, only 2.5% of it is freshwater, and from that, merely 0.4% of water is suitable and safe for consumption.
Water is treated in a different way in different areas because of its quality. Usually, surface water needs more filtration and treatment as compared to groundwater as streams, rivers, and lakes have more pollutants and sediment. This water is likely to be more contaminated in comparison to groundwater.
There are other water supplies that may comprise radionuclides, organic chemicals, inorganic chemicals, and other byproducts. Specialized chemicals are needed to eliminate or control these contaminants in a series of steps to make the water safe for consumption or other intended use.
PAC for Water Treatment
Poly Aluminum Chloride (PAC) is an inorganic coagulant that comes with precipitation, coagulation, and adsorption properties. The PAC structure comprises numerous carboxyl complexes that have variable morphologies. The chemical has a fast sedimentation and flocculation speed, wide pH level application, and water purification element. It is widely used as a water treatment for both wastewater and drinking water treatment.
It is the most effective treatment for drinking water that is widely being used because it offers a higher efficiency of coagulation and has the widest temperature and pH range of application in comparison to other chemicals of water treatment.
The high efficiency of PAC offers an increase in plant capacity and reduces costs of operation. It has minimal impact on pH levels, which means there is little to no need to make pH chemical adjustments that reduce the costs even more. There are multiple uses of PAC water treatment, including:
- Treatment of swimming pool water for filtration and clarification aid
- Coagulant effluent treatment
- Treatment for process water
- Treatment of wastewater for precipitant and coagulant
- Treatment of drinking water
PAC is also utilized in the paper industry to enhance the rates of drainage in alkaline and neutral processes as an aid for retention to enhance the efficiency of sizing and decrease the demand for cationic.
Advantages of PAC Water Treatment
There are numerous benefits of using PAC water treatment. Some of them are as follows:
- Reliable and fast operation and extended shelf-life
- Lower dosage needed as compared to other chemicals that reduce the chemical use and expenses
- Low pH effect
- Lower sludge volumes
- Outstanding water performance
- Great removal of phosphorus
- Lower residual aluminum
- High removal of particles
- Increased settling rate and improved downstream filtration
Uses of PAC in Water Treatment
The process of water treatment comprises numerous operations, including physical, physiochemical, biological, and chemical steps created to eliminate or reduce contaminants or other undesirable elements from the water.
This water treatment method ensures that the water maintains a level that is safe for use and consumption with the right elements present. This means that the water treatment method for drinking water can vary as per the properties and quality of the water being used.
Based on the properties and the purpose of use, chemicals like PAC are used to disinfect and clean the water. Here are the many ways in which PAC is used in water treatment.
One of the most common uses of PAC is that it helps in removing anionic colloidal impurities from the water and settles any suspended elements in the clarification of water, industrial and sewage effluents. It also removes the residual color, creating the right appearance.
It is also used to eliminate the microorganisms in potable effluent water and other environments. It helps in removing bacteria and germs by thoroughly disinfecting the surface.
Clarification and Hygiene
The water in swimming pools or even rivers typically includes numerous small particles and elements as impurities. They have similar negative chemical charges, which is why they continue repelling one another and almost never settle down. Thus, making the water unfit for consumption. PAC or other chemicals can help in removing these impurities and leaving the water fit for use.
Reuse and Recycle
The right chemical has an extended shelf life and provides the best performance for water treatment applications. PAC has plenty of uses in different types of water treatment and provides stability for a longer time and outstanding clarity in the water that has been treated.
Thanks to the high effectiveness of PAC in treating water, you only need a small dose that results in lower chemical consumption and a small change in the water’s pH value.
Water treatment helps in eliminating undesirable components and contaminants or decreases the concentration to make the water fit for safe use. Using PAC water treatment is significant to maintain the health of humans whether they are drinking the water or swimming in it. Safe and clean water is a basic need all over the world, and the right chemicals can make any water suitable for drinking.