Industries / Water Treatment
Aragonite for Water Treatment.
A calcium carbonate medium for pH adjustment, remineralization and filtration in engineered water systems.
The offered grade
WT-CAL for remineralization and alkalinity media.
Grade and sizing
WT-CAL, 1–3 mm (published range), the coarsest classified grade, screened from the natural commercial gradation. Technical data sheet TDS-WT-001.
Who it serves
- Process-water remineralization and pH correction
- Pond preparation and aquaculture alkalinity management
- Acid-water neutralization beds
- Recirculating-system buffering
- Carbonate aggregate for sewer and acidic environments
Qualification data
Representative analysis · ASTM C 25, Bowser-Morner report 124914A
- CaCO3
- 96.17%
- Elemental calcium
- 38.51%
- MgCO3
- 0.24%
- Fe2O3
- 0.01%
- SiO2
- below 0.01%
- Sodium
- 0.21%EPA 6010, Precision Enviro-Tech
Representative analysis · physical properties and buffering
- Specific gravity
- 2.93
- Sphericity
- 0.82API RP 56
- Roundness
- 0.87API RP 56
- Natural buffering point
- pH 6.8Keck Lab
Published range
- NaCl
- 0.06–0.25%
Lot certificate: a certificate of analysis is issued for each dispatched lot per TDS-OA-001.
Known limits
- No potable-water certification. AragoCor does not hold NSF/ANSI 61 or any potable-water contact certification, and WT-CAL is not offered as a certified drinking-water contact medium.
- Contaminant data. No contaminant or leachate data beyond the composition table is published. Buyers whose application is regulated should request the lot certificate and test the media in their own system.
- Turbidity. Turbidity of 380 NTU (API RP 56) is a property of the material as tested, not of treated water, so wash-water handling should be specified for clarity-sensitive duties.
- Buffering point. The buffering point was measured without published solution conditions; dose, chemistry and contact time govern the result.
- Residual sea salt. Residual sea salt (NaCl 0.06–0.25%) is relevant to chloride-sensitive systems.
Next step
Send the water chemistry, flow, treatment targets, media volume and destination.
AragoCor confirms the grade or a custom classification and quotes against confirmed volume, packaging and destination with freight to the named delivery point. Sample availability is confirmed after review.
What carbonate media do in water systems.
Calcium carbonate media are used for pH adjustment, acid neutralization, remineralization of desalinated or reverse-osmosis water, and filtration.
- Contactor remineralization. Soft or desalinated water is passed through a carbonate bed that dissolves in a controlled way, restoring calcium hardness, carbonate alkalinity and pH.
- Dissolution-based buffering. Carbonate dissolution can supply calcium and alkalinity. Influent chemistry, contact time and media consumption govern the resulting pH response.
- System-specific media. Particle size, bed depth, contact time, influent chemistry and backwash requirements determine whether a supplied grade fits the system.
What matters to a water buyer
The specifications that define media performance.
These documented properties define performance for a carbonate medium.
Particle / grain size
Grain size controls dissolution rate and backwash behavior and matches the contactor design. Technical documentation provides particle-size data for each supplied grade.
Purity & contaminant profile
Composition is 96.17% CaCO3 (representative analysis) with Fe2O3 0.01%, silica below 0.01% and residual NaCl 0.06–0.25% (published range).
No potable-water contact certification is held and no contaminant data beyond the composition table is published; regulated applications are qualified by the buyer on the lot certificate and their own test.
System design controls
Grade chemistry and sizing integrate with flow, bed depth, contact time, backwash and treatment targets.
Discuss contactor design and media requirements.
Tell us about your water chemistry, flow, treatment targets, media volume and destination.