Defoamer For Wastewater Treatment
Defoamer for Wastewater Treatment: Industrial-Grade Solutions from Factory Direct
Control Foam in Sewage Plants, Aeration Tanks, and Effluent Systems – Fast-Acting, Cost-Effective Antifoam Agents for Global Buyers
Get Factory Pricing Today: Request Quote | WhatsApp: +86-15032625168
By Li Wei, Export DirectorTANG ZHI TECHNOLOGY (HeBei) CO., LTD | 15+ Years in Cellulose & Specialty Chemicals | Serving 50+ Countries
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Why Foam Control Matters in Wastewater Treatment
I've seen it firsthand in plants across Asia and now exporting to the US – unchecked foam in wastewater systems disrupts everything. Aeration tanks overflow. Pumps cavitate. Clarifiers lose efficiency. Operators scramble with makeshift fixes like spraying water or adding salt, but those just band-aid the issue.
Foaming hits hardest during peak loads in municipal sewage plants or industrial effluents from food processing, paper mills, or textiles. It's often tied to surfactants in detergents, proteins from slaughterhouses, or even microbial activity in activated sludge processes. Without a solid defoamer, treatment cycles drag on, compliance risks spike, and energy bills climb from wasted air blowing into foam instead of mixing properly.
Procurement teams know the drill: you need something that knocks down foam fast, persists through pH swings, and doesn't mess with BOD/COD readings or floc formation. Skip the cheap imports that separate out or leave oily residues – they create bigger headaches downstream.
Over 15 years shipping to buyers in California wastewater districts and Midwest industrial parks, we've learned what sticks. Our defoamers target the root: destabilizing foam bubbles without harming biology or chemistry in the system.
Short story: one US importer told us their DAF units were foaming over daily. After switching, zero carryover issues. Real plants run tighter now.
Our Silicone and Non-Silicone Defoamers for Wastewater
At TANG ZHI TECHNOLOGY, we produce defoamers tailored for wastewater – think powder, liquid emulsions, or compounded blends. Not off-the-shelf stuff. Our lineup includes polydimethylsiloxane (PDMS)-based silicones for heavy-duty foam, plus polyglycol options for sensitive bio-processes where silicone might build up.
What sets ours apart? Factory-direct control over active content – from 10% to 100% – so you dose precisely. We compound with hydrophobic silicas or organic carriers to ensure quick knockdown and longevity. No fillers diluting performance.
- Water-Based Emulsions: Ideal for continuous dosing in aeration basins. Low VOC, easy pump compatibility.
- Silicone Oils: High potency for scum layers in primary clarifiers.
- Polymer Blends: Repel foam in high-shear zones like ejectors.
- Eco-Friendly Variants: Biodegradable for stricter EPA nods.
Buyers often ask about compatibility with our core cellulose lines like HPMC or RDP – we can custom-blend defoamers into dry mixes for powdered chemical feeds, saving you logistics hassle.
Detailed Technical Specifications
Here's the data sheet breakdown. All tested per standard ASTM methods. Customize viscosities or dilutions per your spec.
| Product Code | Type | Active % | Viscosity (cPs) | pH Range | Temp Stability (°C) |
|---|---|---|---|---|---|
| TZ-DF10 | Silicone Emulsion | 10% | 500-1500 | 6-8 | 5-100 |
| TZ-DF30 | Non-Silicone | 30% | 200-800 | 4-10 | 10-90 |
| TZ-DF100 | Pure Silicone Oil | 100% | 5000-10000 | N/A | -10-150 |
water based defoamer defoaming liquid for water well water reducer
Need MSDS or samples matched to your influent analysis? Just say the word.
Where It Shines: Real Wastewater Scenarios
Municipal WWTPs: Add to return activated sludge to curb rising foam during nitrification.
Industrial: Pulp & paper effluents foam from lignins – our emulsions handle it without sticking to fibers.
Food & Bev: High-protein wastewater from dairies or breweries. Non-silicone prevents off-tastes in reuse water.
Oil & Gas: Scrubber towers or produced water treatment. High-temp stable options here.
One caveat: In membrane bioreactors (MBRs), pick low-residue types to avoid fouling ultrafiltration.
Dosing Guidelines & Installation Notes
Start simple. Meter pumps work best – 1-5 L/MGD typical for severe foam. Dilute emulsions 1:10 if your system clogs easily.
Inject upstream of foam source: before weirs, aerators, or mixers. Agitate well. Monitor with jar tests weekly.
Common pitfall: Cold weather thickens oils – warm storage at 20°C. And always flush lines post-use to prevent buildup.
- Analyze foam sample for compatibility.
- Lab trial at 20-100 ppm.
- Plant trial on one basin.
- Scale up with controls.
We've shipped dosing skids too – OEM partners handle integration.
Global Shipping & Procurement Logistics
From Hebei to your door: 20-40 days to US West Coast via consolidated LCL or full 20ft containers (up to 18MT). IBC totes or drums – your call.
FOB Tianjin/Xingang. Duties? We've got HTS codes ready for EPA-compliant imports. No hassles with REACH or TSCA pre-reg.
MOQ: 1MT trial orders welcome. Lead time 7-14 days post-confirm.
USA Buyers: Door-to-door via forwarders like Maersk. Track your container live.
Request Shipping Quote: Email admin@tangzhicellulose.com
Behind Our 140,000 sqm Factory
Jinzhou-based, 90,000 sqm built-up. Automated reactors, spray dryers, and blending lines crank out 40,000+ tons/year. Defoamers share lines with HPMC/PVA – same quality controls.
Certifications: ISO9001, ISO14001, REACH. Lab tests every batch – solids content, dispersibility, foam collapse time.
What Procurement Pros Say
John M., Wastewater Ops Manager, California
"TZ-DF30 cut our foam issues in half. No more overtime for operators. Sample arrived fast, pricing beat domestic suppliers."
Maria G., Procurement Director, Texas Food Processor
"Handles our dairy effluent perfectly. Logistics smooth, even with customs. Will reorder for all sites."
Raj P., Process Engineer, Paper Mill
"Persistent action through pH 5-9. Better than brands we tried. OEM blending option is a game-changer."
Buyer FAQs: Defoamer Procurement
Q: Silicone vs non-silicone for bio-treatment?
A: Non-silicone for sludge recycle to avoid accumulation. Silicone for chemical stages.
Q: Shelf life and storage?
A: 12-24 months cool/dry. Agitate before use.
Q: Can you match competitor specs?
A: Yes – send us samples, we'll reverse-engineer equivalents.
Q: Minimum order for USA?
A: Flexible – 200kg drums start.
Q: Free samples?
Request Here
Ready to Solve Your Foam Issues?
Talk to our engineers. Get specs, samples, or pricing.
TANG ZHI TECHNOLOGY (HeBei) CO., LTD
Room 2308, Dongsheng Plaza 2, No. 508 Zhongshan East Road, Chang’an District, Shijiazhuang, Hebei, China
+86-15032625168 | Contact Page
