Heavy-Duty Sludge Dewater

Product Item : DL-303
Category： Sludge Dehydrator
Applications: Mining, chemical plants
Self-cleaning: Yes
Material: Stainless Steel 304/316
Washdown Protection: IP65
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Sludge Dehydrator Description

In the process of wastewater treatment, water-content sludge of different nature is generated. The main purpose of sludge dewatering equipment is to reduce the water content of sludge and reduce the volume of sludge, thus facilitating the subsequent treatment or disposal of sludge. Its compact structure and low energy consumption are increasingly accepted by wastewater treatment contractors. Choosing a better quality and reasonably priced sludge dewatering machine will bring the user a good profit.

Multiplate Sludge dehydrator with Automatic poly dosing system

Sludge Dehydrator Process

Sludge dewatering is a process that separates water from sludge to reduce its volume and weight. This is a crucial step in wastewater treatment, as it reduces the cost of transportation, disposal, and further treatment. The dewatered sludge—often referred to as “cake”—is easier to handle, store, and dispose of, or can even be repurposed for use as compost, fuel, or in land application.

Multiplate Sludge dehydrator with Automatic poly dosing system

Sludge Dehydrator Model

Auto Sludge Dewatering Screw Press Sludge Solid Liquid Separator

Model	DL303
DS capacity kg/h	90--150 kg/h
Sludge capacity m3/h(2-50g/L)	3-45
Spiral diameter mm	￠310*3
Discharge Distance mm	495
Size LWH mm	360516901600
Net.Kg	1520
Run Kg	3080
Power Kw	1.86
Washing Q L/h	120

Sludge Dehydrator Advantages

Environmental Impact
The sludge dewatering machine contributes to environmental sustainability in multiple ways:

Reduced Sludge Volume: Less volume means fewer trips for disposal and lower emissions.
Energy Efficiency: Conserves energy compared to older technologies.
Lower Chemical Usage: Advanced flocculation systems minimize polymer requirement.
Enclosed Operation: Prevents odor, spillage, and contamination.

Maintenance and Durability
One of the major advantages of the sludge dewatering machine is its low-maintenance design. The absence of high-speed rotating parts reduces mechanical wear. The discs are self-cleaning, and many models come with stainless steel construction (SS304 or SS316), ensuring corrosion resistance and a long operational life.

Routine maintenance includes:
Polymer preparation system checks
Occasional inspection of moving rings and screw shaft
Monitoring sludge inlet characteristics

With proper care, it can function efficiently for 10+ years with minimal downtime.

Sludge Dehydrator Features

Power-saving operation
The screws inside the cylinder of the Sludge Dewatering Machine rotate at a very low speed – approximately 2 to 4 rpm – and consume very little energy. It reduces the power consumption in kWh per ton of dry solids by up to 90% in comparison with a centrifugal dewatering machine.

Water-saving design
The Sludge Dewatering Machine uses the moving rings to create a unique self-cleaning mechanism to keep the filter element clean and “open”, whereas competing technologies use large amounts of (pressurized) rinsing water for this purpose. That explains the major savings in rinsing water consumption that it offers.

Compared to a belt press and a centrifugal dewatering machine with the same throughput, a VOLUTE™ uses 90 to 95% less rinsing water.

Significantly extended lifespan of consumables reduces OPEX
The moving rings are driven by an external driveshaft to prevent contact with the screws, creating a friction-less design. This drastically extends the lifetime of consumable parts, resulting in an even better OPEX than our classic models already have.

No pre-thickening required
The machine’s design integrates both thickening and dewatering of the sludge, which allows processing of low-concentration sludges – having a TS of 0.5% or more – in a single machine without any pre-thickening system. This eliminates the costs for construction and operation of thickening and storage systems and reduces odors. On top, it reduces phosporus and nitrogen emmissions back into the waste water treatment plant, by dewatering the sludge when it’s as fresh as possible.