What are the consequences of using too much polyacrylamide for water treatment?
What are the consequences of excessive use of polyacrylamide for water treatment? We will choose different treatment agents for different sewage, and use the chemical reaction between them to produce the effect of treating sewage. Polyacrylamide can be said to be a kind of agent that is more suitable for treating various sewage.
Polyacrylamide can be used for sludge dewatering. According to the nature of the sludge, the corresponding model of this product can be selected. It can effectively dehydrate the sludge before the sludge enters the filter press. It does not disperse, the mud cake is thicker, and the dehydration efficiency is high. It can be used in the treatment of domestic sewage and organic wastewater. Polyacrylamide is positively charged in compatible or alkaline media, so that it can flocculate and precipitate negatively charged sewage suspended particles in sewage. Strengthening agent and other additives used in papermaking. Improve the retention rate of fillers, pigments, etc., and the strength of paper. It can also be used as oilfield economics aid, textile sizing agent, stable performance of sizing agent, low rate of fabric breakage, less slumping, and smooth cloth surface.
Do not use too much polyacrylamide
1. If it reaches a saturated state, the water will become very viscous. At this time, the flocculant will not gather together and precipitate in the water, and it will easily block equipment such as filters and pipes.
2. When solid polyacrylamide is mixed with tap water, the dissolution rate should not exceed 0.2%. When the dosage is too large or too small, the flocculation effect is not obvious. Due to the different turbidity, various water qualities also have certain requirements for the product model.
3. No matter what molecular weight polyacrylamide is used, when the flocculation effect of water treatment reaches the best, do not increase the concentration and dosage of polyacrylamide solution arbitrarily. The consequence is that it will not only have a negative effect, but also make the floc flow Sex becomes worse, and even turns into gel in severe cases.
In summary, although the polyacrylamide water treatment effect is very good, it does not mean that the more you add, the better, and you cannot add it casually. big. In order to have a good water treatment effect and to save part of the dosage for the next use, the dosage must be controlled.