Condition acidic water / Capture contaminants / Restore essential minerals
TrappSorb® is a porous, magnesium-oxide-based bead media designed for acidic-water neutralisation, contaminant treatment and controlled remineralisation.
TrappSorb® combines magnesium oxide, calcium oxide and proprietary ingredients in free-flowing, uniformly sized beads. As water passes through the media, the alkaline mineral components react with acidity and release magnesium, calcium and hydroxide species. The resulting pH correction can support adsorption or precipitation of phosphate, silica and selected heavy metals. TrappSorb® may also improve corrosive, demineralised or desalinated water by increasing mineral content and alkalinity. A downstream Crystolite® or Zeosorb® filtration stage is recommended where precipitated contaminants or media fines must be separated.
Mineral conditioning / Contaminant capture / Downstream filtration
One mineral media.
Multiple water-treatment objectives.
TrappSorb® can be installed in fixed-bed vessels for potable-water conditioning, wastewater treatment and industrial-process applications after complete water analysis.
Acidic-Water Neutralisation
Magnesium and calcium oxides consume acidity and increase pH and alkalinity without continuous liquid-caustic dosing.
Phosphate & Nutrient Treatment
Supports phosphate adsorption or precipitation and can contribute to nutrient-management processes in wastewater.
Heavy-Metal Precipitation
Higher pH can reduce the solubility of selected metals, allowing precipitated solids to be captured by downstream filtration.
Silica & Boron Treatment
Can be evaluated for adsorption or co-precipitation of selected silica and boron species under controlled chemical conditions.
CO₂ & H₂S Conditioning
Neutralises carbonic acidity and may reduce hydrogen-sulphide odour by changing sulphide speciation and supporting separation.
Remineralisation & Corrosion Control
Adds magnesium and calcium while increasing alkalinity in demineralised, desalinated or naturally soft water.
Four mineral-treatment functions / Engineered into one bead
Controlled Acid Neutralisation (ALKALINITY)
Magnesium and calcium oxides react with acidic water, increasing pH and contributing alkalinity.
Porous Surface Capture (ADSORPTION)
The porous mineral surface provides active sites for adsorption and surface complexation of selected contaminants.
Convert Dissolved Metals into Solids (PRECIPITATION)
pH elevation can precipitate selected metals, phosphate and silica species for downstream separation.
Restore Magnesium and Calcium (REMINERALISATION)
Controlled mineral dissolution adds magnesium and calcium to low-mineral water while improving buffering capacity.
Science & Technology
TrappSorb® uses mineral dissolution, acid neutralisation, surface adsorption and precipitation rather than conventional polymeric ion exchange.
- Magnesium-Oxide Hydration – Reacts with water to form magnesium hydroxide ($MgO + H_2O \rightarrow Mg(OH)_2$), depending on pH, temperature, carbon dioxide and contact time.
- Acid Neutralisation – Consumes acidity ($MgO + 2H^+ \rightarrow Mg^{2+} + H_2O$), increasing pH and adding dissolved magnesium.
- Metal-Hydroxide Precipitation – As hydroxide availability increases, selected dissolved metals form low-solubility hydroxides ($M^{2+} + 2OH^- \rightarrow M(OH)_2(s)$) requiring filtration.
- Phosphate Capture – Reacts with phosphate to form low-solubility phases (e.g., struvite formation: $Mg^{2+} + NH_4^+ + PO_4^{3-} + 6H_2O \rightarrow MgNH_4PO_4\cdot6H_2O(s)$).
Explore the TrappSorb®
Poster Library
Frequently
Asked Questions
Technical information about TrappSorb® composition, pH correction, contaminant removal and system operation.
Contact SupportGet a mineral-conditioning solution
It all starts with complete water analysis.
Send us your water characteristics (pH, acidity, alkalinity, hardness, target contaminants) and flow rates. Our specialists will help evaluate TrappSorb® for your filtration vessel design.
