Is polyferric sulfate poisonous? Is it harmful to human body
Polyferric sulfate is often used in the field of water treatment, so its safety will be questioned by users. Is polyferric sulfate toxic? Is it harmful to human body? The following is the source to answer this question
Is polyferric sulfate toxic
As a new type of flocculant for water purification, PFS is obtained by sulfuric acid polymerization after all. The toxicity of PFS is shown in the following aspects:
1. Long term physical contact
2. Toxicity to microorganisms during water treatment
3. Harm of residual iron ions after water treatment.
The toxicity of PFS is shown in the above three aspects, and whether it will cause harm to human body is as follows:
Is polyferric sulfate harmful to human body
Let's answer from the above two points whether PFS can cause harm to human body
1. In case of accidental or long-term contact with polyferric sulfate
Polyferric sulfate is acidic and corrosive. Once long-term contact or thin skin contact, such as eyes, will make the skin tight, make the skin dark, slight scar marks, etc., but it will not produce sulfuric acid burns, and short-term contact will not affect. Because the acidity and corrosiveness of PFS are very weak.
2. Residual iron ions after treatment of polymerized hot metal sulfate
After the treatment of tap water by PFS, a certain amount of iron ions will be left. It is beneficial for human body to enter the proper amount of iron element in tap water. However, once the residual iron ion in tap water is too much, and drinking for a long time will be harmful to human body. Excessive intake of iron ions can lead to premature aging of liver, stomach, spleen, brain, thyroid and other organs, causing cancer and other diseases. If the sludge with too much iron ions after PFS treatment is stacked in the fish pond, it will lead to fish death.
From the above two points, we can see that polymerized ferric sulfate does not cause harm to human body. If it is accidentally contacted, it can be washed with clean water. As for iron ions in tap water, there is no need to worry about it Ministry of health Strictly controlled, so don't worry.