Water and sewage treatment coagulants

Many years of experience in water as well as industrial and household sewage treatment, proven manufacturing technology and successful sales have made Donau Chemie one of the leading companies in Europe in the area of water and waste management.

Drinking water treatment

The demand for clean, pathogen-free and safe drinking water is one of the valid concerns for the contemporary society.

Newest water treatment technology based on poly-aluminum chlorides becomes more and more prominent, and in the future it will most likely set quality standards for such applications.

Donau Chemie, in an attempt to step up to these expectations, offers Donau PAC series poly-aluminum chloride.
Donau PAC activis is a typical, widely used coagulant for water treatment.
Products such as Donau PAC Calzifloc and Donau PAC Venezia are an example of successful, innovative solutions.

Sewage treatment

Our product range in this category includes mainly ferric chlorides under a marketing name of Donau Klar, poly-aluminum chlorides use the Donau PAC marketing name, while compound solutions of with different ratios of aluminum and iron based coagulants are called Donau Alf.

  • phosphorous precipitation
  • separation of emulsions
  • flocculation
  • deposit conditioning
  • treatment of household sewage and sewage deposits
  • removal of hydrogen sulfide

Donau Klar – iron(III, II) chloride: product group with different quality and concentration
  • Donau Klar classic FeCl3
  • Donau Klar eXXtra FeCl3
  • Donau Klar select FeCl3
  • Donau Klar ferro FeCl2
  • Donaufloc 40 FeCl3

Donau PAC – multi-aluminum chlorides: product group with various aluminum compounds with various degrees of polymerization
  • anionic multi-aluminum chloride (30-45% alkalinity)
  • Donau PAC activis
  • highly-alkalic multi-aluminum chlorides HPAC (65-80% alkalinity)
  • Donau PAC Calzifloc
  • Donau PAC Venezia
Usage of Donau PAC:
  • disinfection
  • turbidity control
  • decoloration
  • removal of algae
  • removal of humus
  • killing filiform bacteria
  • phosphorus precipitation
  • accelerating flocculation and sedimentation
  • dehydration of deposits
  • improved separation of emulsions
  • lesser product consumption due to high efficiency to aluminum concentration ratio
  • high PAC reactivity in low temperatures
  • improving sewage quality (COD, particle charge, etc.)
  • less leftover aluminum in treated sewage
  • treatment of drinking, industrial and swimming pool water
  • manufacturing of chemical paper-pulp and paper
Donau Alf – These products contain various, innovative combinations of active substances: iron, aluminum, flocculation-assisting agents and other additives, depending on the intended purpose.
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