Commodity Chemicals for Municipal & Industrial Water Treatment in Namibia

Classic low-alkalinity failure: alum consumes alkalinity as it hydrolyses, and once the water runs out, more alum just drops pH further without forming floc. Dose soda ash or lime ahead of the alum to restore alkalinity, and the coagulant demand usually falls sharply. A simple alkalinity titration — reagents from our lab range — diagnoses it in minutes.

Soda ash, usually: it dissolves cleanly and doses through simple equipment, where lime demands slaking, slurry handling and dust management that small works struggle to sustain. Lime wins on cost per unit of alkalinity at larger scale. Many Namibian small works run soda ash day-to-day and keep lime for the heavy-lift jobs.

Post-treatment pH trim with lime or soda ash brings water to a slightly positive Langelier index so it lays down a protective film instead of stripping pipes — critical for the long rural lines and older asbestos-cement mains still common in Namibia. Calcium chloride assists where the water lacks calcium entirely.

That is precisely our role: we import in bulk and break to plant scale — pallets and part-pallets of 25 kg bags, delivered on your dosing cycle. A regional works drawing forty bags a month gets import-linked pricing without the forex, freight and warehousing burden of running its own SA supply line.