Ferric Aluminum Sulphate – High-Performance Coagulant for Industrial Wastewater and Process Applications
Ferric Aluminum Sulphate is a specialized aluminum-based coagulant formulated with controlled iron content to enhance floc strength and settling efficiency in demanding industrial systems.
For an overview of aluminum sulfate types and industrial forms, please refer toindustrial aluminum sulfate classifications and applications.
In applications involving high turbidity, elevated COD, or variable influent conditions, the presence of iron plays a functional role rather than being treated as an impurity.
When to Select Ferric Aluminum Sulphate
Industrial wastewater with high organic load or intense color.
Effluents requiring faster floc formation and denser sludge
Systems operating under fluctuating pH or variable flow conditions
Processes where enhanced settling and reduced solids carryover are critical
These selection criteria are most commonly encountered inindustrial wastewater treatment systems using aluminum-based coagulants,
where influent composition and loading conditions vary significantly.
Ferric vs Non-Ferric Aluminum Sulphate
| Parameter | Ferric Aluminum Sulphate | Non-Ferric Aluminum Sulphate |
| Iron Content | Functionally controlled for performance | Minimal or absent |
| Floc Strength | Higher, denser flocs | Moderate |
| Settling Speed | Faster | Standard |
| Typical Use | Industrial & high-load systems | Municipal & general applications |
Typical Technical Data (Industrial Water Grade)
| Grade | Ferric Aluminum Sulphate for industrial water treatment |
| Appearance | White flakes, granular or powder |
| Al₂O₃ Content | ≥ 17% |
| Iron Content (Fe) | ≤ 0.5% (controlled to enhance coagulation without excessive coloration) |
| pH (1% solution) | ≥ 3 |
| Water Insoluble Substances | ≤ 0.2% |
| Particle Size | 0–15 mm / 30 mesh / 100 mesh |
These parameters represent a typical industrial specification. Exact values may be adjusted based on wastewater characteristics, process objectives, and supply format.
Application Context
Ferric Aluminum Sulphate is most commonly applied in industrial wastewater treatment systems where higher coagulation efficiency is required. In papermaking and certain process water applications, ferric formulations are selected when enhanced retention, drainage performance, and system robustness are needed.
In papermaking and certain process water applications, ferric formulations are selected when enhanced retention and drainage performance are needed, as discussed inaluminum sulfate wet-end functions in papermaking.
Supply Forms and Packaging
Available forms: solid (flakes, granular, powder)
Typical packaging: 25 kg bags, 1 MT big bags, bulk supply
Storage: dry conditions recommended to prevent caking; moisture protection required
Industrial Supply Considerations
Ferric Aluminum Sulphate formulations are selected based on wastewater composition, treatment targets, and system configuration. Technical documentation, COA parameters, and packaging options can be provided to support evaluation, compliance, and long-term supply requirements.
