Papermaking wastewater treatment can easily cause foams due to production materials and water treatment processes. If these foams are not treated in time, the foams will affect the quality of papermaking paper, increase the cost of wastewater treatment, and affect the surrounding environment and the service life of machinery. So how to deal with papermaking wastewater foam? Today, the editor teaches you a trick to easily fix the foam. In the process of waste water foaming, the foam problem can be solved by adding a paper-making waste water defoamer.
(Picture: Papermaking wastewater foam)
Reasons for the foaming of papermaking wastewater
Papermaking wastewater mainly includes material preparation wastewater, cooking wastewater, condensation, bleaching wastewater, pulp washing and screening wastewater, etc. A large amount of foam is prone to appear during papermaking wastewater treatment. The main reasons are as follows:
Surfactant foam
In the paper production process, in order to ensure the good performance of the paper, one or more surfactants are often added for preparation as needed. Causes the surface tension of the system to change, and it is prone to foaming.
Foaming caused by production or wastewater treatment process
Due to the existence of operation forms such as stirring, turbulence, oscillation, and jetting, a large amount of air is brought in. The air in the waste water forms bubbles, and the oriented surfactant molecules are adsorbed on the surface of the bubbles, causing a large number of bubbles to appear.
Microbial foam in papermaking wastewater
Bio-foam is caused by abnormal production of filamentous bacteria. Surfactants played a role in foaming and stabilizing foam, and filamentous bacteria further enhanced the stability of biofoam. Due to the slender structure of filamentous bacteria, it is almost completely inelastic when it collides, and it is easy to adhere to air bubbles. Therefore, the proliferation of filamentous bacteria provides a three-dimensional framework for the development of bio-foam to space, which prevents the merger of bubbles and promotes the formation of bio-foam.
In the papermaking process, it is difficult to avoid a large amount of foam in papermaking wastewater. A large amount of foam will not only affect the papermaking wastewater treatment process, but also increase the difficulty and cost of wastewater treatment. The foam problem can be solved by adding a defoamer for papermaking wastewater.
(Picture: Hazard of Papermaking Wastewater Foam)
Advantages of Nanhui Papermaking Wastewater Defoamer
Nanhui defoaming agent manufacturers are prone to a large amount of foam in papermaking wastewater treatment. The defoaming agent developed and designed for wastewater treatment not only has a fast defoaming speed, but also has a strong anti-foaming property.
Nanhui wastewater treatment defoamer has the following advantages:
Factory direct sales, cost-effective, one-to-one technical guidance;
Nanhui provides free samples of defoamer for papermaking wastewater;
Stable defoaming performance, resistant to high temperature, acid and alkali and other environments, and can continue to defoam;
It is chemically inert, will not react with wastewater and will not affect the wastewater treatment process;
For the formula, provide customized services, and customize the defoaming formula according to the needs of customers.
(Picture: Nanhui Papermaking Wastewater Defoamer)
The source manufacturer of Nanhui defoamer can solve various industrial foam problems in a targeted manner. If you encounter bubble problems in related industries, you can call Nanhui technical specialist Ms. Yoyo at 0086 134 2860 1010.
