industry application

Magnesium Hydroxide & MgO for Water Treatment

Safe, non-corrosive alkali for pH neutralization, heavy-metal precipitation and biological nutrient removal in industrial and municipal effluent plants.

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ph ≤ 9 self-bufferingnon-corrosive handlingsludge volume reduced

Magnesium hydroxide for water treatment replaces caustic soda and lime where operator safety, controlled alkalinity and lower sludge volumes matter. Mg(OH)₂ is a mild, self-buffering alkali — it can overshoot pH above 9 only at high overdoses — and the Mg²⁺ ion co-precipitates heavy metals, phosphates and ammonium nitrogen in one step.

recommended grades

Which Grade to Use

Grade	Form	Best for
High Purity Mg(OH)₂ (≥99%)	powder → 60% slurry	Metal finishing, acid pickling and mine drainage neutralization
Active MgO	powder	Phosphate removal and Mg²⁺ dosing for struvite control in digesters
Heavy MgO	granular	Fixed-bed or dosing-silo applications needing low dust

how it performs

Solution Benefits vs. Caustic & Lime

• Self-buffering pH: solubility caps pH near 9 — protects biology in nitrification tanks and eliminates overdosing risk.
• Heavy-metal capture: Mg(OH)₂ flocs sweep out Ni, Cu, Zn, Cr and Fe as hydroxides with a denser, easier-dewatering sludge.
• Safer plant operations: non-corrosive to skin and equipment; no exotic dosing-pump metallurgy needed.
• Nutrient control: dosing MgO raises pH and supplies magnesium for struvite (MgNH₄PO₄) recovery from digester supernatant.

We supply slurry make-up guidance, jar-test samples and dosing calculations based on your influent analysis — send the water spec and we will size the system with you.