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Reduce your wastewater sludge volume up to 7 times

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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.
Watch the video
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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
Control panel with touch screen
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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

Municipal wastewater treatment plant

Malt house

Fishmeal factory

Bakery

Fish products processing plant

Shopping mall food court

Fishmeal factory

Bakery

Municipal wastewater treatment plant

Ice Cream Factory

Brewery

Meat processing company

Fish products processing plant

Treatment of Shrimp farming effluent

Municipal wastewater treatment plant

Industrial wastewater treatment plant

Ferry sewage

Municipal wastewater treatment plant

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  • Biological wastewater treatment process
  • 400 m3/day
  • Sludge concentration (DS): 10 g/L (1%)
  • Type of sewage sludge: Excess of activated sludge
  • Flow: 1.5 m3/h
  • Throughput: 12 kg-DS/h
  • Electrical power: 0.5 kW
  • Wastewater treatment plant
  • 1 200 m3/day
  • Type of sewage sludge: Dissolved air flotation sludge
  • Sludge concentration (DS): 50 g/L (5%)
  • Flow: 5 m3/h
  • Throughput: 150 kg-DS/h
  • Electrical power: 1.5 kW
  • Wastewater treatment plant
  • 350 m3/day
  • Type of sewage sludge: Dissolved air flotation sludge
  • Sludge concentration (DS): 50 g/ L (5%)
  • Flow: 8 m3/h
  • Throughput: 400 kg-DS/h
  • Electrical power: 0.8 kW
  • Wastewater treatment plant
  • 100 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge
  • Flow: 0.4 m3/h
  • Throughput: 20 kg-DS/h
  • Electrical power: 0.2 kW
  • Wastewater treatment plant
  • 200 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation and excess activated sludge
  • Flow: 1 m3/h
  • Throughput: 60 kg-DS/h
  • Electrical power: 0.5 kW
  • Wastewater treatment plant
  • 100 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge and biological treament activated sludge
  • Flow: 1 m3/h
  • Throughput: 60 kg-DS/h
  • Electrical power: 0.5 kW
  • Wastewater treatment plant
  • 300 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge and biological treament activated sludge
  • Flow: 8 m3/h
  • Throughput: 400 kg-DS/h
  • Electrical power: 0.8 kW
  • Wastewater treatment plant
  • 500 m3/day
  • Sludge concentration (DS):  50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge
  • Flow: 8 m3/h
  • Throughput: 500 kg-DS/h
  • Electrical power: 0.8 kW
  • Biological wastewater treatment process
  • 400 m3/day
  • Sludge concentration (DS): 2 g/L (2%)
  • Type of sewage sludge: Excess of activated sludge
  • Flow: 2.2 m3/h
  • Throughput: 44 kg-DS/h
  • Electrical power: 1 kW
  • Wastewater treatment plant
  • 50 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge
  • Flow: 0.25 m3/h
  • Throughput: 20 kg-DS/h
  • Electrical power: 0.35 kW
  • Wastewater treatment plant
  • 50 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge
  • Flow: 0.25 m3/h
  • Throughput: 20 kg-DS/h
  • Electrical power: 0.55 kW
  • Wastewater treatment plant
  • 100 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge
  • Flow: 0.8 m3/h
  • Throughput: 40 kg-DS/h
  • Electrical power: 0.75 kW
  • Wastewater treatment plant
  • 200 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation sludge
  • Flow: 1.7 m3/h
  • Throughput: 88 kg-DS/h
  • Electrical power: 1 kW
  • Sedimentation filtration with dissolved air flotation
  • 1 800 m3/day
  • Sludge concentration (DS): 10 g/L (1%)
  • Type of sewage sludge: Dissolved air flotation sludge
  • Flow: 6 m3/h
  • Throughput: 60 kg-DS/h
  • Electrical power: 1.5 kW
  • Biological treatment plant
  • 150 m3/day
  • Sludge concentration (DS): 20 g/L (2%)
  • Type of sewage sludge: excess of activated sludge
  • Flow: 5 m3/h
  • Throughput: 150 kg-DS/h
  • Electrical power: 1.5 kW
  • Biological wastewater treatment process
  • 80 m3/day
  • Sludge concentration (DS): 30 g/L (3%)
  • Type of sewage sludge: Excess of activated sludge
  • Flow: 2 m3/h
  • Throughput: 50 kg-DS/h
  • Electrical power: 0.5 kW
  • Cruise ships wastewater treatment system
  • 300 m3/day
  • Sludge concentration (DS): 50 g/L (5%)
  • Type of sewage sludge: Dissolved air flotation and excess activated sludge
  • Flow: 5 m3/h
  • Throughput: 150 kg-DS/h
  • Electrical power: 1.5 kW
  • Biological wastewater treatment process
  • 3 000 m3/day
  • Sludge concentration (DS): 50 g/L 6%
  • Type of sewage sludge: Excess of activated sludge
  • Flow: 17 m3/h
  • Throughput: 540 kg-DS/h
  • Electrical power: 3.75 kW
Get your SD solution
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Photos

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All-in-one containerized solution ready to install to any treatment system
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Complete solution with sludge storage tank
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Thickening and dewatering fixed and moving rings
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FDS unit with automatic polymer preparation stations
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Ship-ready SD unit
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Flow control and flocculation tanks
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FDS unit loading for shipment
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FDS unit with sludge container
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Second screw press added for existing FDS system upgrade
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Containerized solution with sludge cakes conveyor
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Pilot FDS unit we install into client's existing treatment system for presentation
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FDS unit with sludge holdigin mixing tank
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General view
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Compleate FDS solution installation
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FDS installed above the dry sludge container
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All-in-one containerized solution. Easy to plug-in
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FDS in operation

Videos

Pilot tests in Municipal wastewater treatment plant
Pilot tests -dewatering of petroleum products
Pilot tests -dewatering of paint products
Pilot tests - dewatering of dairy dissolved air flotation sludge
FDS in operation in Municipal wastewater treatment plant
Models and auxiliary products
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.
Download data sheet (.pdf 722 KB )
Powder polyelectrolyte preparation system
Full automatic polymer preparation system for continues preparation triple chamber tank : dissolving/maturing/storage

Advantages

  • Variable capacity powder dosing with level indicator
  • Powder worm screw with spring brake scraper
  • The heating of powder screw output
  • Compact and space-saving structure
  • Easy to operate with minimal maintenance
  • Water pressure reducer
  • PLC programmable electrical control panel
  • Pro bus-DP, Modbus, Ethernet: Flexible
Download data sheet (.pdf 3 MB )
Types of sludge unloading
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Conveyor type

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Pumping with cavity pump

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Free falling

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Small containers

Introducing mobile sludge dewatering unit FDS-MB

What for?

Who needs it?

01

Useful during Pilot Tests to identify the right flocculant, demonstrate operational results, and determine the suitable size of dewatering press for specific needs

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Short-term solution during equipment maintenance

03

Existing system needs replacement, requiring dewatering during the transition

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As portable dewatering systems in areas without installed dewatering systems

Benefits

Ready-to-use and completely automated
Completely mobile - equipment is compact and lightweight, smallest versions installed on a trailer with a total weight of 750kg, operable with a Category B driver's license
Power supply requirement is only 3.0kW, and in situations without an electrical connection, a small generator can be used
No need for pre-thickening
Integrated polymer preparation system
Water saving - no need for additional water source for polymer preperatuon
Models

FDS mobile models

FDS - MB 170.01

This compact version is designed for use with a category B driver's license. Ideal solution for conducting field tests on selecting flocculants

FDS - MB container version

Mobile coontainers to reach maximum productivty

FDS - MB 260.01-02

This version is equiped with bigger screw press with higher performance. Ideal solution for rental services

FDS - MB 170.01

This compact version is designed for use with a category B driver's license. Ideal solution for conducting field tests on selecting flocculants

FDS - MB container version

Mobile coontainers to reach maximum productivty

FDS - MB 260.01-02

This version is equiped with bigger screw press with higher performance. Ideal solution for rental services

Main system details

The unit is equipped with two mixing chambers

  1. Chamber with a fast mixer for pH correction needs
  2. Chamber for mixing flocculant and sludge, designed with a special mixer

Polymer preperation

Advantages:

Integrated liquid Himoloc polymer mixing with static mixer
  1. Can be used with reused or recycled water
  2. Short dissolution time water and polymer are perfectly mixed
  3. Simple polymer concentration setup
  4. Easy to clean after polymer change

Flocculation of the sludge

Advantages:

Is the the process where where destabilized sludge particles are agglomerated in aggregates called flocs
  1. Sludge and flocculant mixing chamber is equipped mixer specifically designed to uniformly and consistently blend sludge and flocculant throughout the entire volume
  2. Minimal dose of flocculant to achieve the best results

Photo

Video

Watch the video
#1 showcase FDS-MB, municipal sludge
Watch the video
#2 showcase FDS-MB, municipal sludge
Watch the video
#3 show case FDS-MB, sludge from fish processing
Watch the video
#4 show case FDS-MB, sludge from red beet processing
Watch the video
#5 showcase FDS-MB, Municipal sludge
Watch the video
#6 showcase sludge from metal processing
Watch the video
#7 showcase FDS-MB, municipal sludge
Watch the video
#8 showcase, municipal sludge

Downloads

Dewatering unit brochure

Download brochure (.pdf 1 MB )

Mobile dewatering unit brochure

Download brochure (.pdf 312 KB )
About Flotlife

We design, manufacture, assemble and deliver decentralized wastewater treatment systems as tailor-made turnkey solutions that fulfill the highest environmental requirements, are modular, and can be scaled in pace with growing volumes.

From our experience, we are convinced that it is important for modern companies to implement wastewater treatment solutions that combine less environmental impact with energy efficiency, operational cost savings, fast system installation and launch, and easy maintenance.

WE ARE RUNNING OWN MANUFACTURING FACTORY

Wastewater treatment solutions delivered by FlotLife successfully combine industry standard products of our trusted partners and FlotLife’s own manufactured equipment.

Each wastewater treatment plant implementation project is unique, so having our own manufacturing factory allows us to adapt the equipment to different spaces, sizes of premises, placement specifics, wastewater flow rates and other specific customer needs.

In our manufacturing plant we produce such equipment as:

  • rotary screen filter systems
  • balancing tanks
  • coagulant and flocculant reactors
  • flotation units
  • polymer preparation and dosing units
  • advanced oxidation process units
  • sludge dewatering presses
  • etc.
Contacts

phone +371 6765-13-53

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

email info@flotlife.com

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