Water treatment

We have a wide range of products for water treatment, highlighting organic coagulants and, especially, the exclusive flocculants from our  HIMOLOC thecnology.

Water is the most precious natural resource. Its scarcity and contamination is becoming an increasingly serious problem. The major source of this contamination comes from domestic and industrial use and its discharge as waste. Being water an indispensable staple for an advanced society and necessary for economic and industrial development, the availability of clean water is universally recognized as a mark of civilization. This universal concern for water quality and a more sustainable environment has led in recent years to a collective effort to protect and ration this precious treasure.

In this context, Derypol has one of the widest product ranges on the market for water treatment, which includes, among others, flocculating polymers and synthetic coagulants. In addition, our team of experienced water treatment specialists strives every day to meet the unique needs of each of our customers.

Undoubtely, the products in the HIMOLOC range offer the most advanced flocculant technology in this market, adapting the characteristics of each polymer to give the best performance in each of the applications and with the great advantages of polymers in aqueous dispersion: easy to use, free of solvents and surfactants (Green and Blue Technology), low residual acrylamide content, among others. Cationic, anionic and amphoteric flocculants are used in a multitude applications like Physical-Chemical Treatment, sludge dewatering, thickening processes, filtration or specific contaminant removal.

Coagulation and flocculation

Coagulation stage

Coagulation refers to the process of destabilization of suspended colloidal matter. These suspended particles naturally maintain a balance of positive and negative charges that keeps them stably separated. When this equilibrium is broken, these colloids can coalesce to form coagulates. It is very important to take into account the coagulant dosage because an excess can cause re-stabilization of the colloidal matter due to oversaturation of the surface charge of the particles, which would complicate coagulation.

Flocculation stage

Flocculation refers to the dynamic processes which takes place in the aqueous medium, where particles (coagulates) get in contact forming flocs.

This flocculation occurs due to the formation of chemical bonds between two or more particles. The flocs formed like this are soft and porous three-dimensional structures that have a specific weight which slightly different from water, allowing them to be separated by physical means (decantation, flotation, filtration…).

The flocculation process facilitates the dewatering of sludge by centrifuges, belt filters, filter presses, screw presses…