Project Description
Defoamer for Wastewater Treatment | Industrial Water Solutions
Foam is a constant problem in water treatment. It disrupts operation, slows hydraulic drainage, and pushes up running costs. In wastewater systems, foam builds from anionic surfactants, residual detergents, and organic load — causing poor settling, tank overflow and equipment damage, and discharge that fails environmental limits.
INVINO® wastewater antifoams lower surface tension to collapse foam without adding to the effluent's COD. The range covers industrial cooling circuits, biological sewage basins, membrane bioreactors (MBR), landfill leachate, and thermal / RO desalination.
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Key Application Areas for Wastewater Defoamers
Controls foam in cooling towers, power-plant backwater, and high-flow circulation loops — keeping heat exchange efficient and metering pumps running freely.
Collapses foam in activated sludge basins, sequencing batch reactors (SBR), and biological tanks without slowing sludge settling or harming the micro-organisms.
For high-salinity multi-stage flash (MSF) desalination, vacuum filtration cells, and high-anionic chemical effluent where silicone carryover must be avoided.
INVINO® Wastewater Treatment Antifoam Products
| PRODUCT CODE | INGREDIENT | ACTIVE SOLID (%) | Application / Best For | TECHNICAL FILES |
|---|---|---|---|---|
| INVINO-1920 | Silicone Emulsion | 30.0±1.0 | Industrial circulating cooling towers, thermal heat-exchange water loops, and continuous processing backwater channels. | DOWNLOAD |
| INVINO-2430 | Silicone Emulsion | 30.0±1.0 | High-charge anionic wastewater neutralization pools, chemical plant effluent basins, and corrosive industrial systems. | DOWNLOAD |
| INVINO-5023 | Silicone Emulsion (Modified) | 25.0±1.0 | Biological aeration basins, activated sludge reactors, and SBR loops; low-residue and biomass-safe at normal dose. | DOWNLOAD |
| INVINO-4000 | Non-Ionic EO/PO Block Copolymer | 100% | High-concentration landfill leachate filtration lines, multi-effect evaporators, and MBR setups requiring zero membrane fouling. | DOWNLOAD |
| INVINO-103 | Alkylene Oxide Block Copolymer | 100% | High-salinity desalination evaporators, multi-stage flash (MSF) distillation tubes, and high-vacuum thermal treatment elements. | DOWNLOAD |
| INVINO-1920B | Silicone Emulsion | 30.0±1.0 | General municipal water treatment, secondary auxiliary manufacturing loops, and basic collection reservoirs. | DOWNLOAD |
Frequently Asked Questions (FAQ)
Q: Will the defoamer affect the activity of the activated sludge (bacteria)?
A: No. Our biological grades, such as INVINO-5023, are well-emulsified and dosed low. They clear trapped air cleanly without reducing the respiration rate or cell integrity of the activated sludge micro-organisms.
Q: Does adding defoamer increase the COD or BOD of the effluent?
A: Within normal dosing (about 10–100 PPM), INVINO® antifoams separate cleanly into the scum layer and do not add meaningful load to downstream COD or BOD discharge values.
Q: Is it safe for Membrane Bioreactor (MBR) systems?
A: Yes. Mineral oils or heavy silicone fluids can foul PVDF/PES membranes and reduce flux. Our non-silicone polyether grade INVINO-4000 stays in the liquid phase without building sticky layers on MBR membranes.
Q: How long does the defoaming effect last in aeration tanks?
A: Our grades are formulated with high alkali tolerance and shear resistance, so they keep knocking down foam through a full 24-hour aeration cycle without emulsifying prematurely.
Q: Where is the best injection point for the defoamer?
A: Meter it continuously into a turbulent, high-flow point such as the pump inlet weir or just before a fluid drop. Avoid dosing into stagnant dead zones.
Request Your Wastewater Defoamer Solution
Standard Protocol for Industrial Water Sample Verification
System Parameter Submission
Share your wastewater source (e.g. landfill leachate), shear level, temperature, and target pH.
Free Lab Test (Cyclic Bubbling + COD Check)
Send us your wastewater and our lab runs a dynamic bubbling test and a secondary COD check to match a grade — free of charge.
Free Sample Dispatch
Free trial samples ship via air express for on-site testing. No MOQ at sample stage; buyer covers freight, refunded on the first bulk order.
