The subject of the contract is the supply of a chemical agent called: polyaluminium chloride (synonyms: aluminum chloride, aluminum hydroxychloride, poly aluminum chloride) for the elimination of sheepskin, filamentous bacteria and odors in biological reactors and secondary settling tanks of the "Hajdów" Wastewater Treatment Plant.

The subject of the contract is the supply of 400 000 kg of chemical agent: polyaluminium chloride (synonyms: aluminum chloride, aluminum hydroxychloride, poly aluminum chloride)" in order to eliminate sheepskin, filamentous bacteria and odors on biological reactors and on secondary settling tanks.

Required product properties:

• Aluminum content 9.0±0.3%

• Chloride content 19-23 %

• Zasadowość 36-46%

• pH value 1±0.5

• Density at 20°C 1330-1400 kg/m3

• Freezing point - 15oC

• Liquid form

• No smell

• Light yellow

Maximum content of heavy metals up to:

• Arsenic 14 mg/kg

• Cadmium 3 mg/kg

• Chromium 30 mg/kg

• Mercury 4 mg/kg

• Nickel 30 mg/kg

• Lead 40 mg/kg

• Antimony 20 mg/kg

• Selenium 20 mg/kg