Do You Know the Problem of Flocculant When Sludge Thickener Processes Slurry?

Sludge thickener can play a very important role in the process of sludge treatment. This paper will introduce the problem of flocculant when sludge thickener processes sludge.

There are several ways to add flocculant to the pulp in the sludge thickener. Different methods mean different effects. The method of multi-add flocculant solution is to distribute polymer effectively, so as to shorten the mixing time between flocculant and slurry. The mixed systems are as follows: first, adopt a flocculant solution sprayer or tank with a flocculating solution nozzle and damper. Second, make a very short stirring before sending it to a sludge thickener. In this way, flocculant solution can disperse well in the slime water, but the standing time in the reaction area is not shorter than polymer absorption. Therefore, the Flocculation group cannot be hindered in terms of formation and growth.

Synthetic flocculant is the most common flocculant that is used to treat coal industrial wastewater. This flocculant is based on the derivatives of polyacrylamide. This flocculant based on polyacrylamide has been improved greatly in the aspects of the production process and use, especially in the treatment of foam flotation tailings. As we all know, molecular weight plays a very important role in the polymer flocculant effect, which not only influences production cost, but also influences flocculation degree, floccules size, and floccules strength. The molecular weight of synthetic polymers is much larger than that of natural products based on starch, and the tailings flocculation obtained by using synthetic polymer has an extremely high flocculation degree that natural products cannot achieve.

A large amount of flocculant is required in order to obtain flotation tailings with corresponding characteristics, which can be obtained by using a high-molecular polymer. Therefore, the purpose of processing the product is to obtain a higher molecular weight than the polymer. Creating free radicals in the active zone at the beginning of chain growth can increase the chain mechanism, so as to make polyacrylamide in the water. What's more, free radicals can be obtained by using a large number of chemical products with triggered effects. At the same time, as mentioned above, the "active" is passed to the monomer by the initiator, and the increasing chain keeps it to an end. Each chain grows naturally, which can reach 10,000 acrylamide units at the end of growth.

All in all, sludge thickener has a lot of attention in other operations, which need us to study in time.