Paper Mill Wastewater Treatment
Fiber, fillers, and high COD from pulp & paper — engineered DAF systems for fiber recovery and discharge compliance
Pulp & Paper Effluent Is Loaded with Fiber and High COD
Paper mills discharge large volumes of water carrying wood fiber, fillers, fines, and dissolved organics from pulping and bleaching. High TSS and color — plus heavy water use — make this effluent costly to treat and hard to discharge without a proper line.
A Complete Treatment Line, Engineered to Order
From fiber recovery to sludge dewatering, every stage is sized to your mill's flow and discharge target.
1 · Coarse Screening
Fine screens and primary clarification recover coarse fiber before it reaches downstream stages.
2 · DAF Fiber Recovery
Dissolved air flotation floats out fine fiber, fillers, and suspended solids — and lets you reclaim fiber.
3 · Biological (Optional)
A/O stages reduce residual COD and BOD to meet strict discharge standards.
4 · Sludge Dewatering
Screw or belt press dewaters the recovered fiber sludge to 20–35% cake solids for reuse or disposal.
The Two Machines That Do the Heavy Lifting
Dissolved Air Flotation (DAF) System
For paper mills, DAF does double duty: it removes suspended solids and lets you recover reusable fiber from the float — cutting both discharge load and raw-material loss.
Sludge Dewatering Systems
Fiber sludge is bulky and heavy. Dewater it on-site with a screw press or belt press to cut haulage costs and make the fiber easier to reuse or dispose of.
Typical System Configurations
Reference line-ups by scale — the final design depends on your mill's flow and discharge target.
Small · Tissue / Recycled
≤ 100 m³/d
Fine screen + DAF-30 + sludge dewatering.
Medium · Packaging
100–500 m³/d
Fine screen + DAF-100 + A/O biological + sludge dewatering.
Large · Pulp & Paper
> 500 m³/d
Fine screen + DAF-200 + anaerobic + A/O + sludge dewatering.
Engineered in China's Environmental Machinery Base
Engineered-to-Order
Designed around your flow, inlet parameters, and site constraints — never off-the-shelf.
ISO 9001 · CE Marked
Certified manufacturing with pre-shipment testing and third-party inspection welcomed.
Exporting to 50+ Countries
Export-grade crating and FCL/LCL logistics from a factory near Qingdao Port.
Get a Paper Mill Wastewater Solution Proposal
Send us your flow and inlet parameters, and our engineers will return a recommended configuration and budget within 24 hours.
Phone / WhatsApp
+86 18765146311Factory Address
Zhucheng City, Shandong Province, China 262200Prefer WhatsApp?
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