Application of Polyaluminum Chloride in Drinking Water Treatment

Polyaluminum chloride is a flocculant and is the most widely used water purifier in drinking water treatment. Our drinking water mainly uses water from the Yellow River, Yangtze River and reservoirs. Due to the large sediment content and large processing capacity, polyaluminum chloride is required to accelerate the precipitation, thereby improving the processing efficiency. Although the water from the waterworks is low-turbidity water, it has high requirements for water purification, so it is difficult for general polyaluminum chloride to meet the treatment standards.

We all know that tap water is people’s drinking water, and the state has clear regulations and index requirements for the treatment of drinking water. Now, let’s understand the standards for drinking water treatment and the requirements for treating drinking water products.

Why do water plants have to use 30% aluminum chloride?

The 30% Polymeric Aluminum Chloride is processed from aluminum hydroxide powder and calcium powder. Compared with ordinary industrial polyaluminum chloride, 30% polyaluminum chloride has the characteristics of low heavy metal content, less deposition, clear and transparent chemical water, etc., and was widely used as a pharmaceutical before. With the improvement of people’s requirements for water quality and attention to the environment. Our medicines containing 30% polyaluminium chloride strictly meet national standards. For polyaluminum chloride, its process, raw materials and uses are different.

Of course, the most commonly used are 28% polyaluminum chloride (PAC) for sewage treatment and 30% polyaluminum chloride for drinking water treatment. The application effect of 30% polyaluminum chloride is better. Even if the water looks clear, 30% polyaluminum chloride can still remove impurities. The same goes for normal sewage treatment. According to the turbidity of sewage, high turbidity water is suitable for low content of polyaluminum chloride. The disposal is not completely clean, but the cost is low. Low turbidity water needs cleaner treatment!

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