Water Treatment Defoamer

Water Treatment Defoamer:

Concentrated silicone-polyether copolymer emulsion engineered for immediate foam suppression and long-term foam control in municipal and industrial aqueous streams. Formulated with hydrophobic polysiloxane actives and micro-dispersed silica, this active liquid disrupts surface foam lamellae under high turbulence, preventing foam regeneration in biological aeration basins and continuous discharge channels. Designed to eliminate operational interferences such as liquid-level sensor false readings, biological treatment efficiency reduction, and effluent pump cavitation.

 

Product Specifications:

Parameter	Specification Value	Test Method
Appearance	Milky white, uniform emulsion	Visual Inspection
Active Matter Content	30% ± 1%	ASTM D1014
Viscosity (25°C)	1000 - 3000 mPa·s	Brookfield RVT (Spindle 3, 20 rpm)
pH Value (25°C, 1% aqueous solution)	6.0 - 8.0	GB/T 6368
Specific Gravity (20°C)	0.98 - 1.02 g/cm³	ASTM D1298
Centrifugal Stability	No oil separation or creaming (3000 rpm, 15 min)	Internal Test Protocol
Ionic Character	Non-ionic	-

 

Chemical & Physical Properties:

Dispersion Profile: Disperses instantly in cold and warm water without pre-flocculation. Maintains emulsion stability in hard water systems up to 500 mg/L CaCO3 equivalent.
Thermal Threshold: Functions continuously in systems operating up to 90°C.
System Compatibility: Compatible with standard water treatment flocculants and coagulants, including polyacrylamide (PAM), polyaluminum chloride (PAC), and aluminum sulfate, without forming insoluble chemical precipitates.
Microbial Impact: Non-inhibitory to activated sludge microorganisms at operational dosages (5 - 50 ppm). Does not contribute significantly to chemical oxygen demand (COD) at working concentrations.

 

Applications:

Municipal WWTPs: Applied in secondary clarifiers, aeration tanks, and sludge dewatering units (belt filter presses and centrifuges) to control foam caused by high organic loads or surfactant surges.
Industrial Effluent Treatment Plants (ETP): Deployed in high-surfactant wastewater streams from chemical synthesis, textile dyeing, and pharmaceutical manufacturing.
Pulp & Paper Mills: Manages white water foam in wet-end circuits and effluent lagoons to prevent paper sheet defects and drainage restrictions.
Cooling Water Systems: Controls foam generated by biocide additions and anti-scalant polymers in recirculating cooling tower loops.

 

Pharmaceutical Manufacturing Relevance:

Manufactured entirely from non-animal-derived raw materials, complying with stringent BSE/TSE-free certification requirements.
Low residual volatile organic compound (VOC) profile, engineered for API intermediate wastewater streams where trace organic contaminants are tightly regulated.
Compatible with membrane bioreactor (MBR) filtration units when maintained at dosages below 20 ppm, reducing the risk of hydrophobic silicone fouling on ultrafiltration/microfiltration membranes.

 

Grade & Quality Requirements:

Industrial Grade (WT-300): Standard 30% active formulation optimized for municipal and general industrial wastewater treatment plants.
High-Concentrate Grade (WT-600): 60% active matter variant designed for large-scale industrial plants seeking to lower freight cost per active kilogram on international shipments.
Food & Beverage Grade (WT-F30): Formulated in compliance with FDA 21 CFR standards for indirect contact water systems in brewery, dairy, and food processing effluent facilities.

 

Quality Control:

Raw Material Verification: Every incoming batch of silicone base oil and emulsifying agents is tested for refractive index, viscosity, and purity before factory release.
In-Process Laser Analysis: Droplet size distribution is measured continuously during high-shear emulsification to maintain the optimal 1 - 10 um droplet window required for maximum defoaming efficiency.
Lot Traceability: Representative retain samples (500 mL) from every 10-metric-ton production lot are archived for 24 months in climate-controlled storage for post-delivery verification.

 

Packaging & Storage:

Packaging Configurations:
HDPE Tight-head Drums: 200 kg net weight.
Intermediate Bulk Containers (IBC Totes): 1000 kg net weight equipped with a bottom discharge valve.
ISO Tank Containers: 20 - 24 metric tons for bulk wholesale purchasing.
Storage Environment: Store in tightly sealed original containers between 5°C and 35°C. Protect from direct sunlight.
Shelf Life & Handling: 12 months from the date of manufacture. If minor phase separation occurs due to extended warehouse storage, gentle mechanical mixing restores full performance homogeneity. Do not freeze. Exposure to temperatures below 0°C causes irreversible emulsion breakdown.

 

Supply & Procurement:

Minimum Order Quantity (MOQ): 1 Pallet (4 x 200 kg drums or 1 x 1000 kg IBC tote) for standard export orders.
Sample Policy: 1 kg laboratory evaluation sample available upon request; freight expenses are covered by the prospective buyer or billed to their corporate courier account.
Lead Time:
Spot orders: 7 - 10 business days from port departure.
Contract orders: Quarterly rolling delivery schedules managed via scheduled call-off orders.
Manufacturing Capacity: 500 metric tons per month output capability, supporting multi-container fulfillment and long-term supply agreements.

 

OEM & Custom Specification:

Active Content Customization: Concentration can be formulated between 10% and 60% active matter to match specific budget targets or dosing pump injection capacities.
Viscosity Adjustment: Rheology modified for specialized high-pressure automated dosing systems or gravity-fed drip lines.
Private Labeling: Custom drum stenciling, laser-etched batch labels, and co-branded technical documentation available for verified chemical distributors.

 

FAQ:

 

Request a Quote:

To receive a commercial quotation including FOB or CIF pricing, delivery schedules, and destination port terms, submit your exact technical parameters-including annual consumption volume, packaging choice, and port of entry-directly to our technical sales team.

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