Paper wastewater foam difficult to eliminate? Use paper wastewater treatment defoamer
Paper mill wastewater discharge has always been a more serious problem, due to the papermaking raw materials will be added to a variety of additives, so the paper wastewater is very easy to foam problems. The foam problem can be solved by adding paper wastewater treatment defoamer.
Paper wastewater mainly includes preparation wastewater, cooking wastewater, condensation, bleaching wastewater, washing and screening wastewater, etc., paper wastewater treatment is prone to a large number of bubbles, this time the use of a number of physical methods, chemical methods plus biological methods of wastewater treatment to purify water resources to reduce the emission of pollution.
What are the main causes of foam in paper wastewater?
1, surfactant foam
Paper production process, in order to protect the good performance of paper, often add one or more surfactant-like substances for preparation as needed. Resulting in a change in the surface tension of the system, it is easy to bubble phenomenon.
2, production or wastewater treatment processes lead to foaming
Due to the presence of mixing, turbulence, oscillation, jetting and other forms of operation, so a large amount of air is brought in. The air in the wastewater forms bubbles, and the surfaces of the bubbles are adsorbed with surfactant molecules arranged in a directional manner, resulting in a large number of bubbles appearing. In the process of treating wastewater, there are often bubbles, so it will affect the breeding of organisms in the water, and the operational effectiveness of the treatment process. At this time, the need to add wastewater treatment defoamer in the treatment of wastewater can be a good solution to a series of problems brought about by the foam.
What is paper wastewater treatment defoamer?
Paper wastewater treatment defoamer with good defoaming speed. Paper wastewater treatment defoamer can persistently inhibit foam, foaming system for many industries are very good. For example, pharmaceutical, papermaking, leather printing and dyeing, urban sewage and other industries, the treatment process and chemical cleaning foam, paper wastewater treatment defoamer can play a very good effect.
Paper wastewater treatment defoamer adopts environmentally friendly formula, is a kind of high efficiency defoamer. Defoamer is mainly made of modified silicone polyether and modified siloxane compound refined by special technology.
Paper wastewater treatment defoamer has good biodegradability, high temperature resistance and strong alkali resistance, and in the high temperature and strong alkali conditions can quickly defoam, lasting foam suppression.
Wastewater treatment defoamer has stable chemical properties, does not affect the sewage microorganisms, does not change the performance of sewage COD, BOD.
Paper wastewater defoamer can effectively ensure the production efficiency, but also reduce the impact on the environment.
Paper wastewater treatment defoamer itself is non-toxic and harmless, and does not affect bacterial reproduction.
How to use defoamer correctly
It is recommended that before proceeding with large quantities of defoamer, small scale trials can be conducted to determine the most appropriate amount of defoamer to use. As a defoamer manufacturer with 20 years' experience, RISE CHEMICAL provides customers with free samples and technical guidance throughout the whole process, with precise matchmaking to improve the efficiency of your process or the performance of your products.
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