The polyacrylamide standard born in 1985 by the International Health Organization pointed out that when the amount of residual acrylamide in polyacrylamide is controlled below 0.05% and the dosage is controlled, the content of water in the treated water will be less than 0.25 ug/L, which is in line with drinking water standards in most countries.
PAM products have long been approved by the US Environmental Protection Agency or the Food and Drug Administration for use in drinking water, fruits, and vegetable washing. PAM is non-toxic, but PAM's raw material monomer AM is toxic, especially for mammalian nerves. Therefore, European and American countries, including China, have strict requirements on the residual monomer AM content in food grade PAM. The general requirement is less than 0.05%, and the maximum dose applied is also limited. However, in the fields of wastewater treatment, sludge dewatering, etc., the staff does not have to worry about the toxicity of PAM to the human body.
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