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What it is
Sludge dewatering screw press
FlotLife Dewatering System (FDS) is an innovative multi-disc screw press for wastewater sludge dewatering. FDS reduces sludge in weight and volume by separating it into liquid and solid components.
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FDS is structured with a filter element that consists of two types of rings: fixed ring and moving ring, and a screw that thrusts the filter element and transfers and pressurizes the sludge.

The gaps between the rings and the screw pitch are designed to gradually get narrower towards the direction of the sludge cake oulet and the inner pressure of the filter element increases due to the volume compression effect, which thickens and dewaters the sludge.

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How it works
Process flow

System components and process stages

Sludge conditioning tank

Before dewatering, the sludge is temporarily stored in a conditioning tank.

Flow control tank

Overflow pipe regulates sludge feed to the device. Excess sludge is returned to the conditioning tank.

Flocculation tank

In the flocculation tank sludge is mixed with flocculant which enables dissolved particles to aggregate in large flocs.

Thickening and dewatering cylinder

A screw mechanism pushes sludge through moving rings of the thickening zone (where sludge is thickened) and the dewatering zone (where thickened sludge is dewatered).

Discharge outlet

The end plate applies the final pressure to the sludge, and the dewatered cake is discharged.
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Why FDS?
Advantages

Variety of sizes
Dewatering screw presses of FDS series come in a variety of sizes suitable for small as well as large-scale wastewater treatment plants.
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Unique thickening ring technology
Thickening rings made of advanced composite materials exhibit light weight coupled with high strength along the direction of the reinforcing fibre, dimensional stability, temperature and chemical resistance.
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Simple operation and maintenance
Thanks to its simple design, operation and monitoring of the screw presses of FDS series is intuitive, easy and does not require daily maintenance. It can operate fully automatic 24/7.
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Clog-resistant design
The in-built self-cleaning mechanism enables dewatering of oily sludge, which can cause clogging and is therefore difficult to treat with other types of dewatering.
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Easy integration into existing infrastructure
Thanks to its small footprint, the dewatering units of FDS series can be installed in sites with restricted space. Simple interface allows effortless connection to existing wastewater treatment system.
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Two year warranty + after-sales service
All products of FDS series are accompanied with a two-year warranty. After-sales service is one of our focus areas.
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Automated control and management
Access via desktop or mobile devices

The operation of FlotLife’s FDS system can be fully automated, with its performance controlled by the control cabinet which allows both on-site and remote access for system monitoring and configuration. The automation system is based on open architecture and SIEMENS SIMATIC WinCC technology. The operator interface is on a touch screen - simple and intuitive to understand.

Features

  • Easy-to-use visual dashboard provides real-time status and alerts
  • Remove connectivity enables access via desktop or mobile devices
  • Continuous monitoring helps to control and stabilize the process before it gets out of control
  • Access to historical data offers enhanced insight for better decision making

Available also as all-in-one containerized solution

product
Plug & Play
All outlets made ready for connection to any 
existing treatment system
Compact and mobile
Placed in standard 20 feet ISO container, it requires space of 30 m2
No construction costs
All equipment is assembled in a container which only needs a strong base to be placed on
Insulated and heated
We provide customized insulation and heating depending on local requirements where the container goes to
Case studies
Real-world experience

Irbe Fish

Fazer

NZRO

Engure

Baltia

Esto Fish

BSK

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  • Fish product manufacturing company
  • Filter press replaced with FDS 131
  • DSC: 24%
  • Space savings
  • Lower polymer consumption
  • Higher DS content results
  • Better filtrate quality
  • Bakery production
  • DSC: 24%
  • Dewatering press saved space
  • Lower polymer consumption
  • Higher DS content results
  • Better filtrate quality
  • Fish production
  • Containerized solution
  • DSC: 24%
  • Lower polymer consumption
  • Higher DS content results
  • Better filtrate quality
  • Municipality
  • Containerized solution
  • DSC: 24%
  • Lower polymer consumption
  • Higher DS content results
  • Better filtrate quality
  • Shopping mall
  • Containerized solution
  • DSC: 24%
  • Lower polymer consumption
  • Higher DS content results
  • Better filtrate quality
  • Fish production
  • DSC: 24%
  • Lower polymer consumption
  • Higher DS content results
  • Better filtrate quality
  • Malt production
  • DSC: 24%
  • Lower polymer consumption
  • Higher DS content results
  • Better filtrate quality
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Photos

Models and specifications
View more information
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FDS series of sludge dewatering screw press

FDS comprise typical series of small, medium, large and extra large sludge dewatering units ranked by productivity (throughput) and flow rate. To select the correct unit for your needs, please download the product data sheet.

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Auxiliary products

FlotLife supplies own manufactured range of automatic polymer preparation and dosing stations either as complementary products to sludge dewatering screw presses or as stand alone units. Please contact us for more information.

Contacts

phone +371 6765-13-53

mark Mazcenu aleja 37, Jaunmārupe, LV-2166, Latvija

email info@flotlife.com

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