The Chemistry of Clean Water
PAC
Poly Aluminium Chloride
PAC is a polynuclear aluminium complex with high charge density, excellent for flocculation over a wide pH range. Contec’s PAC process enables precise control of basicity (up to 75%) and includes both liquid and solid formulations. Solid PAC is typically produced via nozzle or spray tower drying systems.
ACH
Aluminium Chlorohydroxide
ACH offers extremely low aluminium residuals and minimal chlorine content. Suitable for sensitive industrial uses, it is produced using simplified equipment compared to PAC—no enamel-lined reactors or graphite heat exchangers are required.
AS
Aluminium Sulphate
AS (Al₂(SO₄)₃) remains an economical coagulant option. Despite limited flexibility under strict effluent parameters, it’s a reliable choice for certain water conditions. Our technology allows seamless integration with PAC production for operational efficiency.
FeCl₃
Ferric Chloride
A preferred solution for phosphorus removal and sludge conditioning in wastewater treatment. Contec’s systems are adaptable for continuous or batch production based on plant scale and dosing requirements.
Green Chemistry in Practice
