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CI Alum 48
48% Aluminum Sulfate Coagulant | Conventional Water Treatment and Phosphorus Precipitation
CI Alum 48 is an aqueous aluminum sulfate coagulant used for charge neutralization and floc formation in potable water and wastewater treatment. Upon hydrolysis, the product forms aluminum hydroxide precipitates that enmesh suspended solids and colloidal material. CI Alum 48 exhibits predictable stoichiometric behavior and is well suited for facilities with sufficient raw water alkalinity or established alkalinity correction systems. Typical applications include conventional surface water treatment, wastewater phosphorus precipitation, and systems engineered specifically for alum-based coagulation.
Technical Data
Technical Data
Technical Properties
CI Alum 50
High-strength aluminum sulfate coagulant for municipal wastewater clarification, solids reduction,
and phosphorus control. Designed for use where operators need a dependable liquid coagulant to
destabilize fine suspended matter, tighten settling performance, improve sludge separation, and
support cleaner overflow from lagoons, clarifiers, polishing systems, or chemical-assist treatment trains.
Product Type
Liquid aluminum sulfate coagulant for municipal wastewater treatment.
Primary Function
Coagulation, clarification, suspended solids knockdown, and chemical phosphorus reduction.
Best-Fit Applications
Primary clarification support, tertiary polishing, phosphorus-control programs, lagoon cleanup support, and upset-condition solids capture where biological treatment alone is not enough.
Operator Value
Faster floc formation, better settling, lower carryover risk, improved effluent appearance, and more stable plant response when feed and mixing are controlled properly.
| Technical Property | Operational Summary |
|---|---|
| Chemical Class | Inorganic coagulant based on aluminum sulfate. |
| Treatment Role | Neutralizes particle charge so fine colloids can come together into heavier floc that settles or can be removed downstream. |
| Primary Targets | Total suspended solids, turbidity, colloidal fines, and soluble/reactive phosphorus when conditions are suitable. |
| System Fit | Useful where wastewater needs chemical help to achieve tighter solids removal or phosphorus compliance, especially during seasonal loading swings or biological underperformance. |
| Feed Method | Typically metered by chemical feed pump into a point with immediate turbulence and controlled downstream flocculation. |
| Mixing Requirement | Needs rapid initial mixing to disperse the coagulant, followed by gentler downstream contact to build floc without shearing it apart. |
| pH Sensitivity | Performance depends heavily on wastewater chemistry; overdosing or poor pH control can reduce efficiency and create avoidable sludge load. |
| Sludge Impact | Improves solids capture but increases chemical sludge generation; operators should plan for the downstream solids burden rather than pretending it is free removal. |
| Control Strategy | Best managed through jar testing, plant trending, and staged dose adjustment against actual influent conditions, not fixed habit dosing. |
| Compatibility | Can be used alone or alongside polymers where stronger floc density, settling speed, or dewatering performance is required. |
Where It Belongs
- When clarifier blankets are weak, pin floc is escaping, or effluent looks visibly dirty.
- When phosphorus reduction needs a direct chemical removal mechanism instead of waiting on biology to do a job it is not doing.
- When seasonal lagoon or plant conditions create suspended solids carryover that needs targeted intervention.
- When the site wants tighter polishing performance before discharge, reuse, or downstream filtration.
Practical Operating Notes
- Do not dose blind. Jar test first, then confirm with plant response, sludge production, and effluent trend data.
- If floc forms but breaks apart, the problem may be hydraulic shear or poor downstream mixing, not lack of chemistry.
- If you push dose too hard, you can trade dirty water for excessive sludge and poor economics.
- Watch pH, alkalinity, settling profile, sludge volume, and phosphorus residual together. Looking at only one number is how operators fool themselves.
- Where a polymer is used, tune the coagulant first. Polymer cannot rescue a badly chosen primary dose forever.
Typical Performance Objectives
- Improve clarification and visible effluent quality.
- Reduce suspended solids carryover from primary or tertiary treatment stages.
- Support phosphorus removal targets.
- Create stronger, more settleable floc for downstream separation.
- Stabilize treatment performance during load swings, storms, or biological upset periods.
Important: Alum 50 is a fit-driven coagulant, not a magic liquid. Dose, feed point, mixing energy,
pH, alkalinity, wastewater composition, and sludge handling capacity all determine whether the program works or
becomes an expensive mess.
pH, alkalinity, wastewater composition, and sludge handling capacity all determine whether the program works or
becomes an expensive mess.
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