Coagulants and bleaches

Our coagulants

Synthetic-mineral and organic coagulants

We supply a range of the highest quality products, which have more advantages and are more environment-friendly than those used traditionally: aluminium salts (aluminium chlorohydrate and aluminium sulphate) and iron (ferric /ferrous chloride and ferric/ ferrous sulphate).

We offer synthetic-mineral and organic coagulants and the advantages with respect to traditional coagulants are as follows:

  • These products are non-corrosive, unlike traditional made from salts (iron/aluminium), which are highly corrosive and reduce the life of plant machinery (stirrers, pumps, metallic machinery, etc.)
  • They are neutral products. This makes it unnecessary to use neutralizing products such as lime or sodium hydroxide which are used to compensate the consumption of alkalinity due to the coagulant.
  • Less sludge is caused as no hydroxides are formed.
  • They don’t generate any conductivity in the water due to the characteristics of the products themselves and because it is not necessary to use products which neutralize the effect of the coagulant.
  • As there is much less sludge, the global cost of running the plant is significantly lower.
  • They don’t add chlorides to the water.
  • They don’t add inorganic material to the sludge and avoid adding minerals to the biological sludge when it is due to be recirculated.
  • Safer for staff who have to deal with them, given that they are non-corrosive, and thus not under ADR regulations.
  • Less work handling the products, as a lower dosage is needed than with traditional ones.

What are coagulants used for?

Water, both in its normal form and as wastewater has small particles in suspension called colloids, which, due to their electrostatic characteristics repel each other. This makes it impossible to separate them from the water.

Coagulant treatment of wastewater involves using chemical coagulants to enable colloids to agglomerate into larger particles. This makes it possible to eliminate them more easily from water.

This type of water treatment tends to be undertaken in order to eliminate solids in suspension, animal fats, oils, dye, proteins, carbohydrates (starches), heavy metals etc. Often treatment with both coagulants and flocculants is applied.

Our bleaches

Highly effective bleaches

In general, the chemical compounds which transfer most dye to water are mineral compounds (easily eliminated using coagulants) and organic compounds (soluble in some cases and difficult to remove).

For this reason we have developed a line of highly effective bleaches which remove soluble dyes according to the type of dye in the water.

What are bleaches used for?

Colourants are the polluting compounds which cause the greatest visual impact in water and can damage the environment seriously and entail fines for the company.

Bleaches are used to remove the remaining dye and are frequently used in the textile, tanning and paper industries.

Do you need a product made especially for you?

If your company has special needs, our R&D laboratory will create a coagulant or bleach made for your specific requirements; we can also provide other chemical products for any other wastewater treatments you may need.