Water treatment defoamer can be used in what areas?
Water treatment defoamer has a wide range of applications, the following is an introduction to some of the applications of water treatment defoamer.
Pulp And Paper
Antifoam agent can eliminate foam formed by various factors in the papermaking process. According to the specific conditions and requirements of each process to choose the paper antifoam agent.
Such as wastewater treatment requirements of low cost, and does not cause secondary pollution, can be mixed with a certain degree of foam inhibition in the surfactant bentonite as a filler; used in alkali pulp washing, bleaching and concentration of black liquor defoamer, alkali resistance, high temperature resistance, most of the olefinic solvents and oleophilic surfactants; used in the paper machine defoamer, the requirements of the paper will not form an oil spot on the paper surface and will not affect the water resistance, you can choose a silicone oil or hard fatty amide, calcium (aluminum) soap and other components of the defoamer. Silicone oil or hard fatty amide, calcium (aluminum) soap and other components of the emulsion-type defoamer.
Petrochemical Industry
In the petroleum industry, from the extraction to the processing of crude oil, it can be said that the role of defoamer is indispensable.
In the drilling process, mud pumps are used to pump mud along the hollow of the drill pipe to the drill bit at the bottom of the drill pipe, and then return to the ground by the gap between the drill pipe and the well wall, and return at the same time will be drilled under the rock chips carried up, in the mud pool after the rock chips precipitation occurs, and then the clean mud recycling.
Industrial Cleaning Industry
Accompanied by the take-off of the global economy, industrial cleaning defoamer industry as an important part of the industrial economy has also flourished. Defoamer for industrial cleaning has the functions of energy saving, consumption reduction, water saving, safety, stable production, improving product quality, accelerating production speed, prolonging the service life of equipments, reducing environmental pollution, as well as the appearance of beautiful and human hygiene and health.
Fermentation Industry
Foaming is a common phenomenon in the production of fermentation using microorganisms, especially in the fermentation process that utilizes air to agitate the material, a large amount of foam is produced, so the fermentation tank is often filled with foam. According to the type of fermenting bacteria, there are oxygen-consuming bacteria and anaerobic bacteria. For oxygen-consuming bacteria, the foam again cannot be eliminated too much, otherwise it will affect the transfer of oxygen.
For the fermentation industry protein-based surface-active substances, the characteristics of the bacterial propagation of foam, the main antifoam agent for fermentation are polyether-type and organosilicon. These two kinds of defoamer in the addition of customers according to their own use of the situation to be sterilized, sterilization treatment temperature of 130 ℃.
There are generally two ways to add antifoam agent after sterilization:
The first way is to add the substrate, and strains, carbon sources, nitrogen sources, nutrients, etc. added together to inhibit the production of foam in the fermentation process, which is better to use silicone antifoam;
The second way to add is to add the flow in the fermentation process, observe the foam in the fermentation kettle from the sight glass, and take the way of intermittent flow addition.
