Sludge Dewatering and Drying System

By combining our dewatering press with our dryer, we can offer a complete dewatering and drying unit.
Dewatered cake from the dewatering press will be fed directly to the dryer. It reduces sludge volume by drying waste activated sludge or chemically sedimented sludge up to 60 to 90% dry solids content. We offer electric rotary kiln type, SP series ( offered only in Japan ), and steam drum type, K series.

SP SeriesElectric heat source ( offered only in Japan )

We managed to design this dryer to be compact with our own double layered drum structure, creating sufficient surface area while maintaining high heat exchange efficiency with direct contact of sludge to the heat source.
Dried sludge is discharged in the form of flakes by combining the dryer with VOLUTE Dewatering Press, minimizing the scatters of dried sludge making it easier to handle. In addition, it offers the advantage of dried sludge being less likely to decay than dewatered cake, consequently providing less odor during the temporary storage of the sludge.

Throughput

Throughput - Sludge Dryer Solapy [SP/SL Series]

Volute Dewatering Press+SP Series Example of combined layout

1Discharge of dewatered cake
Discharge of dewatered cake

The dewatered cake with solid content of about 17%, discharged from the sludge dewatering press, is in turn fed into the dryer.

2The inside of the dryer
The inside of the dryer

The dewatered cake fed to the dryer is gradually dried inside the drying drum.

3Dried cake
Dried cake

Dried cake with solid content of 60 to 90% is discharged.

Water content and weight of sludge

State of Sludge Water Content Weight of Sludge Cake
Raw sludge 99% 10000kg
Thickened sludge 96% 2500kg
Dewatered cake 83% 588kg
Dried sludge 40% 167kg
30% 143kg
20% 125kg
10% 111kg

*Trial calculation for solid content of 100kg-DS

Water content and weight of sludge

K Series Steam heat source

This is a drum dryer with steam heat source.
The dewatered cake thrown into the center of the heated two drying drums adheres thinly to the surface of the drum by the rotation of the drums. Then, sludge gets dried, scraped off from the drum by the scraper and discharged.
※ K series is a product of KANKYO SETSUBI Co., Ltd..

Throughput

K Series

Volute Dewatering Press+K Series Example of combined layout

1Discharge of dewatered cake
Discharge of dewatered cake

The dewatered cake with solid content of about 17%, discharged from the sludge dewatering press, is in turn fed into the dryer.

2Drying Drum
Drying Drum

Sludge is dropped onto the drum surface, and it gets dried during one rotation.

3Dried cake
Dried cake

Dried cake with solid content of 60 to 90% is discharged.

Recommendations

Sludge Dewatering Press Volute Series

Sludge Dewatering Press
Volute Series

The Volute Series is officially recommended for the sludge dryer SP Series.
The press and the dryer SP/K Series make up a dewatering and drying system.

Feel free to contact us for any inquiries
about sludge treatment and wastewater treatment.

Inquiries about Products, operation instructions, troubleshooting and repairs

  • Sludge Dewatering Press & Thickener
  • Sludge dryer & sludge dewatering and fermentation system
  • Water Treatment Chemicals
  • Other Products

Inquiry by Phone

+81-45-540-8580

Weekdays 9:00~17:00

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