The use of coagulants in water treatment is a crucial step in the purification process across various applications. Coagulants, often referred to as flocculants, play a significant role in aggregating and settling suspended particles, aiding in their removal from water. However, several factors must be carefully considered to ensure optimal efficiency and effectiveness when utilizing coagulants in water treatment.
Choosing the Right Type of Coagulant for Pool Water Treatment
I. Pool Clarifiers (Cationic DMDAAC Polymers)
Pool clarifiers, also known as coagulants or water purifiers, are widely employed in pool water treatment. Specifically designed for pools and recreational water bodies, these clarifiers possess positive charges, allowing them to easily combine with negatively charged suspended particles in pool water, such as impurities found in pools, hot springs, and various spa pools.
The clarifier facilitates the formation of larger and denser particles by binding with these suspended particles. Through traditional pool filtration systems, this process effectively filters out the suspended material, leaving the water clear and vivid blue. While a sand filter alone can remove up to 50% of turbidity, the addition of a super-concentrated clarifier alongside it can achieve a remarkable 99% removal of turbidity.
II. Pool Precipitants (Polyaluminum Chloride)
In domestic pool water clarification, the mainstream product is polyaluminum chloride. When the ideal clarification effect is not achieved after pool circulation filtration, this precipitant can be utilized.
Upon introduction into the pool, polyaluminum chloride not only acts as a water purifier but also disinfect. Although not as effective as chlorine disinfectant tablets such as chlorine tablets, it has additional functions such as removing odors.Furthermore, its usage requires over 30% less than traditional water purifiers, resulting in cost savings exceeding 40%. It has gained widespread recognition as an excellent water purifier.
Polyaluminum chloride also exhibits special functions, including the removal of iron, cadmium, fluoride, radioactive pollutants, and oils. Consequently, it can address issues arising from the excessive presence of iron ions caused by the use of other pool water treatment agents.
Proper Usage of Coagulants in Pool Water
There are two methods for using pool coagulants, namely direct application and injection using a metering pump in the circulation water treatment equipment.
I. Direct Application to the Pool
This method involves direct addition to the pool, allowing the coagulant to settle overnight. Subsequently, a vacuum cleaner is used to suction and dispose of debris from the pool floor.
While effective, this approach is relatively cumbersome, time-consuming, water-intensive, and may not completely clear the water of impurities and coagulant-generated floc. Suspended floc, if present, may remain unaffected, affecting the overall cleanliness of the water.
II. Metering Pump Injection into Circulation Pipeline
In contrast, injecting coagulants into the circulation pipeline before the pool’s water pump proves to be a simpler and more efficient method. Adding coagulants to a coagulant dissolution barrel, followed by activating the metering pump and circulation system, streamlines the process.
This method not only saves time and effort but also ensures a more thorough cleaning of debris and floc from the water. Through this approach, coagulants effectively induce the aggregation and settling of suspended particles during the water circulation process, ultimately achieving comprehensive water quality improvement.
In conclusion, coagulants play an indispensable role in water treatment, providing robust support for ensuring clear and sanitary water quality. Carefully selecting the type of coagulant, precisely controlling dosage, and adopting rational application methods significantly impact water quality enhancement. Simultaneously, continuous monitoring of water quality changes and necessary adjustments are crucial for maintaining the stability of water treatment systems. Through collaborative efforts, we can ensure more efficient and sustainable water treatment processes, delivering a safer and cleaner water environment for everyone.
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