Case Studies
Livestock Farming Facility Wastewater Treatment System

For the livestock farming facility for fattening pigs (Kagoshima Prefecture), we delivered two units of the multi-disc screw press dehydrator MDC-series for sludge dehydration, and six units of the submersible air mixer TAR-series for aeration and agitation.
The MDC-series has no sludge feed tank. The unit equipped with φ350 screws was highly evaluated for its ability to handle large processing volumes, enable continuous automatic operation with simple controls, and minimize labor required for sludge dehydration.
The TAR-series is an energy-saving aeration and agitation system capable of both aerobic and anaerobic treatment. It achieves high oxygen transfer efficiency with low power consumption, operates quietly underwater, and maintains a hygienic environment with minimal spray and odor.
Both products have been widely adopted by livestock farming facilities throughout Kagoshima Prefecture, and their proven track record and long-standing reliability led to their selection for this project.
Tsurumi Manufacturing offers a wide range of water treatment equipment and submersible pumps required for livestock farming sites, enabling us to provide comprehensive, integrated solutions.
Multi-Disc Screw Press Dehydrator
The main unit of the multi-disc screw press dehydrator contains a multi-disc mechanism where ring-shaped "fixed discs" and "movable discs" are alternately arranged at a regular clearance around a "screw shaft." The main unit consists of a "support frame" that supports the multi-disc structure and a "dam plate" at the end of the screw shaft.

| Installed Equipment | Specifications |
|---|---|
| Multi-Disc Screw Press Dehydrator |
Model : MDC-353CS Number of Units : 2 units Treating Capacity : 108〜216kgDS/h Screw Shaft : φ350 x 3 |
Submersible Air Mixer
Tsurumi's original downward 4-directional discharge design spreads flow across a wide area. It effectively homogenizes the wastewater by creating conditions that make it hard for sludge to precipitate and settle on the tank bed.

Related videos
Submersible Air Mixer TAR-Series (Japanese)
| Installed Equipment | Specifications |
|---|---|
| Submersible Air Mixer |
Model : 100TAR45.5 Number of Units : 6 units Air-inlet Bore : 100mm Motor Output : 5.5kW Air Supply Rate : 1.5〜10m3/min Oxygen Transger Rate : 12〜34kg・O2/h |


