ZHANGJIAGANG CITY PEONY MACHINERY CO.,LTD
| Application | Ink Wastewater Treatment |
| Capacity | Depends on Slurry Condition |
| Control System | PLC + VFD |
| Safety Design | Gas-Tight / Explosion-Proof Optional |
| Machine Type | Ink Slurry Decanter Centrifuge |
| MOC | SS304 / SS316L |
| Packaging Details | Standard export packing, polywood, fumigated wood, filmed |
| Delivery Time | 75-90 days after receiving the down payment |
| Payment Terms | TT,LC,Western Union |
| Supply Ability | 100 sets per month |
| Cleaning | Flushing / CIP Optional |
| Separation | Pigment Sludge–Liquid Separation |
| Operation | Automatic Continuous |
| Pretreatment | Coagulation / Flocculation Optional |
| Ink Type | Water-Based / Solvent-Based |
| Place of Origin | China |
| Brand Name | Peony |
| Certification | ISO9001&ISO14001,CE |
| Model Number | PDC |
View Detail Information
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Product Specification
| Application | Ink Wastewater Treatment | Capacity | Depends on Slurry Condition |
| Control System | PLC + VFD | Safety Design | Gas-Tight / Explosion-Proof Optional |
| Machine Type | Ink Slurry Decanter Centrifuge | MOC | SS304 / SS316L |
| Packaging Details | Standard export packing, polywood, fumigated wood, filmed | Delivery Time | 75-90 days after receiving the down payment |
| Payment Terms | TT,LC,Western Union | Supply Ability | 100 sets per month |
| Cleaning | Flushing / CIP Optional | Separation | Pigment Sludge–Liquid Separation |
| Operation | Automatic Continuous | Pretreatment | Coagulation / Flocculation Optional |
| Ink Type | Water-Based / Solvent-Based | Place of Origin | China |
| Brand Name | Peony | Certification | ISO9001&ISO14001,CE |
| Model Number | PDC | ||
| High Light | drilling mud decanter centrifuge ， solid liquid centrifuge | ||
The Decanter Centrifuge for Ink Slurry Wastewater Treatment is designed for continuous pigment separation, ink-sludge thickening, wastewater clarification, and downstream filtration preparation.
It is suitable for wastewater generated during ink production, mixing-tank cleaning, printing-machine washing, color changeover, and off-spec ink treatment.
Ink pigments are often fine and highly dispersed.
Coagulation, flocculation, or pH adjustment may be required before centrifugation to improve solids capture and liquid clarity.
Acrylic resin, polyurethane, latex, and other binders may increase slurry viscosity or form sticky deposits.
The feed concentration, temperature, and cleaning system should be considered during equipment selection.
Wastewater composition changes during color changeover and equipment cleaning.
An equalization tank helps stabilize pH, solids concentration, viscosity, and feed flow.
The decanter removes suspended and precipitated solids but does not directly remove dissolved dyes, solvents, surfactants, or COD.
Clarified liquid may require oxidation, biological treatment, activated carbon, membrane filtration, or another polishing process.
Solvent-based ink wastewater may contain flammable liquids or vapors.
A sealed centrifuge, nitrogen protection, grounding, explosion-proof components, and vapor collection can be provided when required.
Peony provides continuous separation solutions for pigment recovery, ink-sludge thickening, wastewater clarification, and downstream treatment preparation.
Ink Production / Tank Cleaning / Printing-Machine Washing
→ Wastewater Collection
→ Agitated Equalization Tank
→ pH Adjustment
→ Optional Coagulation and Flocculation
→ Decanter Centrifuge
→ Thickened Ink Sludge
→ Filter Press / Dryer / Recovery / Disposal
Clarified Liquid
→ Intermediate Water Tank
→ DAF / Oxidation / Biological Treatment / UF / RO
→ Reuse or Discharge
Conditioned ink wastewater enters the rotating bowl through a controlled feed pipe.
An agitated equalization tank maintains stable solids concentration and prevents pigment sludge from settling.
High-speed rotation separates aggregated pigment particles, fillers, and precipitated resin solids from the liquid phase.
The denser solids move outward and form a layer against the bowl wall.
The internal screw conveyor rotates at a controlled differential speed.
It continuously transports the settled ink sludge toward the conical end for further thickening.
The separated liquid leaves through the liquid outlet.
It can be sent to oxidation, biological treatment, flotation, membrane filtration, or further water-recovery treatment.
Concentrated ink sludge is discharged continuously.
The solids can be sent to a filter press, dryer, pigment-recovery process, sludge container, or controlled disposal.
| Model | Diameter (mm) | Length (mm) | Length-to-diameter rate | G force | Max solid discharge (m³/h) | Weight (kg) | Dimension (L*W*H) (mm) |
|---|---|---|---|---|---|---|---|
| PDC-10 | 250 | 1000 | 4 | 4080 | 0.4 | 1000 | 2410*800*1080 |
| PDC-12 | 4200 | 1350 | 4 | 3500 | 0.6 | 1200 | 2610*800*1080 |
| PDC-12 | 4200 | 1350 | 4.5 | 3180 | 1.2 | 1800 | 3495*840*1180 |
| PDC-18 | 4000 | 1600 | 4.5 | 3180 | 1.2 | 3200 | 3497*1020*1385 |
| PDC-18 | 450 | 2150 | 4 | 2500 | 2 | 3800 | 4447*1080*1385 |
| PDC-20 | 400 | 2250 | 4.5 | 2500 | 3.5 | 4000 | 4580*1140*1470 |
| PDC-21 | 530 | 2280 | 4.3 | 2500 | 5 | 5000 | 4924*1170*1540 |
| PDC-26 | 655 | 2800 | 4.3 | 2270 | 8 | 7000 | 4300*1900*1350 |
The centrifuge continuously removes pigment and precipitated solids from ink wastewater.
Pre-thickening reduces wastewater volume and provides a more stable feed concentration.
Removing pigment solids before oxidation, biological treatment, or membranes reduces downstream loading.
Flushing and CIP connections help reduce color contamination and resin buildup.
Sealed, explosion-proof, and nitrogen-protected options are available for compatible solvent-containing streams.
Please provide:
Ink pigments and emulsified resins may remain highly dispersed. Coagulation and flocculation form larger particles that are easier to separate.
Stable feed concentration, suitable bowl settings, internal flushing, and regular CIP cleaning help reduce resin deposits.
Yes. Separate collection and thorough flushing between colors are recommended to limit cross-contamination.
Possibly. Suspended solids, color, COD, and residual chemicals must meet the plant’s cleaning-water requirements.
The solvent type and flash point must be confirmed. A gas-tight design, explosion-proof components, grounding, and nitrogen protection may be required.
Peony welcomes distributor and agent cooperation with ink manufacturers, printing plants, packaging companies, textile printers, wastewater contractors, chemical-treatment suppliers, and industrial separation partners.
We support partners with wastewater testing, centrifuge selection, chemical-conditioning design, anti-stick configuration, solvent-safe design, filter press integration, installation guidance, commissioning, spare parts, and after-sales service.
Send us your ink wastewater information, including ink type, pigment and resin composition, solids concentration, flow rate, solvent content, treatment target, and downstream process. Our engineering team will recommend a suitable decanter centrifuge solution for your ink slurry wastewater treatment system.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
35Million -40Million
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Basic Information Zhangjiagang City Peony Machinery Co., Ltd., founded as a special producing enterprise of separating equipment in 2008, is the well-known manufacturer and service provider of separation and filtration in China. Peony dedicated to solving the solid-liquid, liquid-liquid separation p... Basic Information Zhangjiagang City Peony Machinery Co., Ltd., founded as a special producing enterprise of separating equipment in 2008, is the well-known manufacturer and service provider of separation and filtration in China. Peony dedicated to solving the solid-liquid, liquid-liquid separation p...
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