Now in the industry of water treatment agents, I believe that the name of polyferric sulfate is not unfamiliar to everyone. Some people often contact it, such as manufacturers, production workers, dealers of water treatment agents, and personnel of sewage treatment plants. But I think there are few people who know it and can use it correctly in sewage treatment. What precautions should be paid to when polyferric sulfate is used to treat sewage?
The relevant personnel of this problem have made a detailed analysis and research, so that those who see this article can have a deeper understanding of polyferric sulfate, a water treatment agent, and can use it very quickly when used.
1.You should basically know that polymerized ferric sulfate is an acidic inorganic polymer coagulant. It has a certain acidity. When storing, you can't use containers of iron or aluminum metal products, otherwise the two are easy to react and corrode the storage tanks. Generally, plastic tanks are used. Plastic tanks are cheaper, and anticorrosive stainless steel tanks are also OK, which is high cost.
2.Moreover, when adding polymerized ferric sulfate, PPR pipes made of plastic should also be used. Acidic substances flow through the pipes year after year, which is always corrosive, and plastic will not react with acid. But it is afraid of long-term exposure, so try not to be exposed.
3.Before adding polymerized ferric sulfate to the wastewater, an experiment to determine the dosage should be done in the laboratory according to the water volume of the wastewater and the different indicators in the wastewater. After adding different amounts of polymerized ferric sulfate, flocculate, react and settle, take the upper clean water, detect the indicators that need to be controlled, and determine the appropriate dosage according to the test results. The experiment in the laboratory usually takes five to seven days as a cycle, Therefore, it can only be determined after five to seven days. In actual production, there is a certain deviation between the dosage of polymerized ferric sulfate and the amount we tested in the laboratory. You can add a smaller amount with better experimental results first, and when the effluent sees the effect but does not meet the standard, you can increase the dosage until the effluent is qualified, which is the later dosage in production.
4.When adding polymerized ferric sulfate, it is not that the greater the amount, the better the effect. We must pay attention to the amount. If the amount is too large, it will backfire, not only increase the cost, can not purify the water quality, but also may worsen the water quality, such as turbidity, water redness, color, pH, COD, SS and other indicators exceed the standard, facing environmental protection risks.
5.Polymerized ferric sulfate is a kind of coagulant, which can bind and gather colloidal particles in water, but it should be noted that wastewater and polymerized ferric sulfate must be fully mixed, and there must be sufficient sedimentation time for alum to fully sink to the bottom of the tank, so that it can play a good role, and the treated water body can reach a good state.
Among all water treatment agents, polyferric sulfate is indeed a good product, but the best product, if you don't know how to use it at all, it's useless. If you don't know what to pay attention to in use, it's even more counterproductive. Therefore, these are the experience they have accumulated for a long time in participating in the sewage treatment process, which is their very valuable wealth. I hope you can learn more about the application of polyferric sulfate and the precautions in its application, so that it can play its unique role in the environmental protection work of modern society and be used by more water treatment projects.
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