Nonionic Polyacrylamide Polymer DAF System Powder Flocculant for Paper Factory Deinking Effluent Treatment
Paper Factory Deinking DAF Flocculant
,Nonionic Polymer for Paper Mill DAF
,Ink Removal Nonionic Polyacrylamide Powder
Nonionic Polyacrylamide DAF System Flocculant for Paper Factory Deinking Effluent Treatment
HENGFENG Nonionic Polyacrylamide Polymer Powder is engineered for Dissolved Air Flotation (DAF) systems treating deinking process effluent in paper recycling factories. The nonionic polymer effectively removes printing ink particles, stickies, and colloidal contaminants from deinking water, ensuring efficient ink flotation and producing high-quality recycled pulp for paper production. Its pH-independent flocculation mechanism makes it ideal for the variable chemical environment of deinking circuits.
DAF Performance in Paper Deinking Applications
Nonionic PAM efficiently flocculates and floats dispersed printing ink particles (10-100 um) in the deinking DAF unit, achieving 90-98% ink removal efficiency and producing cleaner recycled pulp.
Effectively aggregates and removes hot-melt adhesives, pressure-sensitive adhesives, coating binders, and other sticky contaminants that cause paper machine deposits and sheet defects.
Works synergistically with deinking chemicals including sodium hydroxide, sodium silicate, hydrogen peroxide, and fatty acid collectors without interference or performance degradation.
Reduces COD by 60-80% and BOD by 50-70% in deinking effluent, helping paper mills meet increasingly stringent wastewater discharge regulations and reducing surcharge costs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Nonionic Polyacrylamide Powder |
| Appearance | White Granular Powder |
| Molecular Weight | 6-8 Million Dalton |
| Solid Content | ≥88% |
| Degree of Hydrolysis | <5% |
| Particle Size | 20-80 Mesh |
| Dissolution Time | ≤90 Minutes (at 25°C) |
| Effective pH Range | 3-11 |
Paper Factory DAF Applications
This nonionic polyacrylamide is proven effective in paper recycling and deinking DAF systems:
- Mixed office waste (MOW) deinking flotation
- Old newsprint (ONP) deinking DAF circuits
- Old corrugated containers (OCC) process water treatment
- Facial tissue and hygiene paper deinking systems
- Tissue mill and packaging mill wastewater treatment
Dosing Recommendation: Prepare 0.05-0.2% polymer solution using an automatic make-down unit. Apply at 2-5 mg/L in the DAF feed line after deinking chemicals addition. For heavily printed wastepaper, pre-treatment with polyaluminum chloride (PAC) at 50-150 mg/L may enhance performance. Jar testing with actual deinking process water is recommended.
About HENGFENG Polymer
Jiangsu Hengfeng Fine Chemical Co., Ltd. is a leading polyacrylamide manufacturer with 25 years of industry experience. We operate a 125-acre production facility with 50,000 tons/year powder capacity and a fully automated DCS-controlled manufacturing system. Our products serve paper mills, water treatment plants, and oilfield operations across 60+ countries. ISO 9001:2015 and SGS certified quality management ensures batch-to-batch consistency.
FAQ
Q: How does nonionic PAM perform with different paper grades?
A: Our nonionic PAM works effectively across all recycled paper grades including newsprint, tissue, packaging board, and printing/writing paper deinking processes.
Q: Can this product handle shock loads of ink concentration?
A: Yes, the wide effective pH range (3-11) and ionic-strength independence of nonionic PAM provide robust performance even during process fluctuations and shock loading events.
Q: What is the expected water quality after DAF treatment?
A: Typical results: TSS reduced to below 50 mg/L, turbidity below 30 NTU, and ink particle removal above 95%. Results depend on influent characteristics and system optimization.
Q: Is on-site technical support available for paper mills?
A: Yes, our application specialists can visit your facility for DAF system evaluation, chemical program optimization, and operator training. Free samples available for laboratory and on-site trials.
