{"id":64,"date":"2026-07-06T17:18:29","date_gmt":"2026-07-06T09:18:29","guid":{"rendered":"http:\/\/www.dashappliances.com\/blog\/?p=64"},"modified":"2026-07-06T17:18:29","modified_gmt":"2026-07-06T09:18:29","slug":"how-does-the-addition-sequence-of-drinking-grade-polyaluminium-chloride-and-other-agents-429c-550d5c","status":"publish","type":"post","link":"http:\/\/www.dashappliances.com\/blog\/2026\/07\/06\/how-does-the-addition-sequence-of-drinking-grade-polyaluminium-chloride-and-other-agents-429c-550d5c\/","title":{"rendered":"How does the addition sequence of Drinking Grade Polyaluminium Chloride and other agents affect water treatment results?"},"content":{"rendered":"

Hey there! I’m a supplier of Drinking Grade Polyaluminium Chloride, and today I wanna chat about how the addition sequence of this stuff and other agents can impact water treatment results. Drinking Grade Polyaluminium Chloride<\/a><\/p>\n

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First off, let’s get a bit of background. Drinking Grade Polyaluminium Chloride is a key player in water treatment. It’s great at removing impurities, like suspended solids, turbidity, and some heavy metals from water. It works by coagulating the tiny particles in the water, making them clump together so they can be easily removed.<\/p>\n

Now, when it comes to water treatment, we often don’t just use Polyaluminium Chloride on its own. There are other agents involved, like flocculants, pH adjusters, and disinfectants. And the order in which we add these agents can really make a difference.<\/p>\n

Let’s start with the case of adding Polyaluminium Chloride first. When we add it before other agents, it starts the coagulation process right away. The positively charged aluminium ions in Polyaluminium Chloride neutralize the negatively charged particles in the water. This causes the particles to lose their repulsion and start to come together.<\/p>\n

If we add a flocculant right after the Polyaluminium Chloride, the flocculant can help the coagulated particles form larger, more settleable flocs. Flocculants are long – chain polymers that can bridge the small coagulated particles, making them easier to separate from the water. This sequence can lead to very efficient removal of turbidity and suspended solids.<\/p>\n

For example, in a water treatment plant that was dealing with highly turbid river water, they added Drinking Grade Polyaluminium Chloride first. After a short mixing period, they added a non – ionic flocculant. The result was a significant reduction in turbidity, and the water was much clearer. The sedimentation process was also much faster because the large flocs settled to the bottom more quickly.<\/p>\n

However, if we change the sequence and add the flocculant before the Polyaluminium Chloride, things can go a bit wrong. The flocculant might not work as effectively because the particles in the water haven’t been properly coagulated yet. The long – chain polymers of the flocculant might not be able to attach to the individual particles, and we won’t get those nice, large flocs. As a result, the sedimentation process will be slower, and the water might still have a high level of turbidity.<\/p>\n

pH adjusters are another important factor. If the pH of the water is not in the right range, the effectiveness of Polyaluminium Chloride can be reduced. Polyaluminium Chloride works best in a certain pH range, usually around 6 – 8. If the water is too acidic or too alkaline, the aluminium species in the Polyaluminium Chloride might not form the right coagulating compounds.<\/p>\n

So, if we add a pH adjuster before the Polyaluminium Chloride, we can ensure that the water is in the optimal pH range for the coagulation process. For instance, if the water is too acidic, we can add a base like sodium hydroxide to raise the pH. Then, when we add the Polyaluminium Chloride, it can work at its best.<\/p>\n

On the other hand, if we add the Polyaluminium Chloride first and then try to adjust the pH, it can be a bit of a mess. The coagulation process might have already started, and changing the pH later can disrupt the formation of the flocs. The aluminium species that have already formed might not be able to re – arrange themselves properly, and we might end up with a less effective water treatment.<\/p>\n

Disinfectants are also crucial in water treatment. After we’ve removed the impurities using Polyaluminium Chloride and other agents, we need to kill any remaining bacteria and viruses. Chlorine is a common disinfectant.<\/p>\n

If we add the disinfectant too early, it might react with the Polyaluminium Chloride or other agents in the water. For example, chlorine can react with some of the organic matter that is still in the water before it has been fully removed by the coagulation and flocculation process. This can lead to the formation of harmful disinfection by – products, like trihalomethanes.<\/p>\n

So, it’s usually a good idea to add the disinfectant after the coagulation and flocculation processes are complete. This way, the water is already relatively clean, and the disinfectant can work more effectively without creating as many harmful by – products.<\/p>\n

In some real – world scenarios, different water treatment plants have different optimal addition sequences based on the characteristics of the source water. For example, a plant that gets water from a lake with a lot of organic matter might need to adjust the addition sequence to deal with that specific issue. They might need to add a pre – oxidant before the Polyaluminium Chloride to break down some of the organic matter and make the coagulation process more efficient.<\/p>\n

As a supplier of Drinking Grade Polyaluminium Chloride, I’ve seen firsthand how important the addition sequence is. I’ve worked with many water treatment plants, and we’ve had to experiment with different sequences to get the best results. Sometimes, it’s a bit of trial and error, but once we find the right sequence, the water treatment becomes much more efficient and cost – effective.<\/p>\n

If you’re in the water treatment business and are struggling with getting the best results from your water treatment process, I’d love to have a chat. The addition sequence of Drinking Grade Polyaluminium Chloride and other agents can be a game – changer. Whether you’re dealing with high turbidity, high organic matter, or just want to improve the overall quality of your treated water, we can work together to find the optimal sequence for your specific situation.<\/p>\n

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So, don’t hesitate to reach out. Let’s have a discussion and see how we can make your water treatment process better.<\/p>\n

Nonionic Polyacrylamide<\/a> References:<\/p>\n