Wastewater — Process Challenge

Oil & Grease Removal: Demulsifiers & Coagulants

Emulsified oil and grease in industrial wastewater must be destabilized so it can float/skim or settle. Design breaks the emulsion with cationic organic coagulants and metal-salt coagulants that neutralize the stabilizing surface charge
Why It Matters
Emulsified oil and grease in industrial wastewater must be destabilized so it can float/skim or settle. Design breaks the emulsion with cationic organic coagulants and metal-salt coagulants that neutralize the stabilizing surface charge
Solution Approach

Emulsified oil and grease in industrial wastewater must be destabilized so it can float/skim or settle. Design breaks the emulsion with cationic organic coagulants and metal-salt coagulants that neutralize the stabilizing surface charge RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Treatment Workflow
1
System Assessment
Characterize operating conditions—fluid composition, temperature, pressure, flow rates—and benchmark current treatment performance.
2
Chemistry Selection
Match base chemicals to your operating envelope. Factor in compatibility with existing programs, regulatory constraints, and downstream impacts.
3
Dosage & Delivery
Determine optimal treat rates through jar testing or field trials. Configure packaging (drums, totes, ISO tanks) to match consumption and storage logistics.
4
Monitoring & Adjustment
Track KPIs—coupon rates, residuals, separator performance, water quality. Adjust chemistry and dosage as conditions change.
Recommended Chemistries (4)
PolyDADMAC
CAS 26062-79-3
Specialty Additives
Cationic coagulant polymer
High-charge cationic polymer neutralizes the anionic surfactant film stabilizing oil droplets, coalescing them for skim/float removal. (Role is emulsion breaking/coagulation.)
Full Details
Polyamine
CAS 68131-73-7
Specialty Additives
Chelation / Sequestration
Lower-MW cationic polyamine penetrates and destabilizes tight oil-in-water emulsions where polyDADMAC alone is insufficient. (Role is emulsion breaking.)
Full Details
Ferric Chloride
CAS 7705-08-0
Acids & Salts
High-performance coagulant
1773 (FERRIC CHLORIDE) · Class
Fe(III) coagulant sweeps freed oil and fine solids into dense Fe(OH)3 flocs for clarification
Melting Point: 306 °C   Boiling Point: 315 °C at 760 mmHg (Decomposes)   Density: 2.8 at 20 °C (anhydrous solid)
Full Details
Poly Aluminum Chloride (PAC)
CAS 1327-41-9
Specialty Additives
Chelation / Sequestration
Pre-hydrolyzed aluminum coagulant assists oil-droplet aggregation across a broad pH with low alkalinity demand
Full Details

Need help selecting the right chemistry?

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