High-Pressure Sludge Dewatering System

Product Item : DL-303
Category： Sludge Dehydrator
Applications: Mining, chemical plants
Self-cleaning: Yes
Material: Stainless Steel 304/316
Ideal for: Emergency cleanup
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Sludge Dehydrator Description

Sludge produced in municipal and industrial wastewater treatment plants requires dewatering prior to further treatment or utilisation. In view of increasing sludge disposal costs it has become necessary to concentrate the sludge to a high solids content.

DAGYEE offers for this purpose commonly known systems for continuous sludge dewatering, e.g. belt filter presses and screw presses.

Multiplate Sludge dehydrator with Automatic poly dosing system

Sludge Dehydrator Process

Sludge dewatering is the process of separating solid and liquid sludge components to minimize sludge disposal. Often polymer flocculants are also added prior to sludge dewatering (using powder dosing system) to help the solid-liquid separation process.

Instead of treating sludge or liquids, the sludge dewatering facility will separate liquid and solid components, making it easier and cost effective to treat the different treatment stages. After final sludge dewatering, the liquid is treated in ETP/STP and the solid sludge is disposed of.

The main purpose of sludge dehydrators is to minimize treatment and disposal. Sludge dehydrators are the most cost-effective method of dehydration and therefore help to maintain the company’s environmental objectives.

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

Screw press sludge dehydrator, also known as multi disc volute screw press, with its advantages of energy saving, stability and high degree of automation, occupies a place in the sludge dewatering operation of the current sewage treatment industry, and is still rapidly recognized. And it was accepted by the market.

It is a new type of sludge extrusion dehydrating equipment, using the screw extrusion principle, through the screw diameter and pitch changes produced by the strong extrusion pressure, as well as the small gap between the floating ring and the fixed ring, to achieve solid-liquid separation. The dewatering screw press is composed of automatic control cabinet, flocculation modulation box, sludge concentration and dewatering device and liquid collecting tank. The automatic control technology can realize the automatic operation of flocculation, continuously complete the sludge concentration and extrusion, and finally return or discharge the collected filtrate.

Sludge Dehydrator Features

Optimize your wastewater sludge dewatering and sludge thickening
VecFlow™ technology delivers outstanding performance in wastewater sludge thickening and dewatering. The unique VecFlow™ feed zone of Aldec G3 decanters minimizes turbulence and reduces power consumption by up to 30% compared to traditional decanter centrifuges.

Minimal turbulence for maximum performance
Aldec G3 decanter centrifuges equipped with VecFlow™ technology for sludge thickening gives you maximum performance with minimal turbulence. Alfa Laval’s unique VecFlow™ sludge centrifuge feed zone reduces turbulence by more than 80% compared to traditional decanter centrifuges and cuts acceleration power by 40-50%.

Gentle acceleration
A traditional feed zone injects the sludge radially into the decanter bowl, continuously disturbing the internal flows and causing turbulence. A VecFlow™ feed zone, on the other hand, gives the feed a completely different flow path since it accelerates the sludge tangentially when entering the bowl of the decanter centrifuge.

Sludge centrifuges with better separation performance
Apart from reducing total power consumption in sludge thickening, the low turbulence also improves separation performance. The separation is more effective than in a traditional decanter centrifuges, with less break-up of flocs. Additionally, the efficient acceleration to full speed reduces wear on the conveyor.

Cut OPEX
Depending on your specific sludge-thickening requirements, you may wish to minimize polymer consumption, increase the dryness of the cake or boost capacity. The high separation performance in thickening and low power consumption leads to a low total cost of ownership and very short payback times. You often get a full return on your investment in less than one year.