belt filter press

Belt Filter Press For Superior Results

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Our Patented Belt Filter Press Products use filter belts (typically polyester), and mechanical pressure to dewater or solidify sludge, slurries and food products. The most common applications are for solidifying wastewater sludge or industrial slurries.

[/vc_column_text][/vc_column][/vc_row][vc_row full_width=”stretch_row” css=”.vc_custom_1532961155045{background-color: #ffffff !important;}”][vc_column width=”2/3″][vc_custom_heading text=”Gravity Zone” use_theme_fonts=”yes”][vc_single_image image=”12423″ img_size=”full”][vc_column_text]There are three process zones to a Belt Filter Press, the gravity zone, wedge zone, and high/pressure/shear zone.

First, the gravity zone is where the sludge or slurry is first introduced to the filter. This typically happens after a chemical flocculent or polymer has been introduced and mixed into the slurry to release water and form larger particles. Finally, the slurry is spread across the usable area of the filter and is contained from running off the filter sides by rubber seals. There are typically plows or chicanes on the upper surface of the filter belt to move the sludge solids and promote drainage. On the lower side, the filter belt is typically supported by a grid of replaceable plastic material.

While many Belt Filter Press designs place these support grids too far apart (6-10 inches) and on some, the supports are also are too wide and block the drainage of liquids from the filter belt. However, Bright’s superior design places ½ inch wide UHMW plastic strips on 2.5-inch centers. As a result, this promotes superior drainage by breaking surface tension on the filter without unnecessary blockage of the exiting water. In addition, the close grid also better supports the filter, as a result creating a better seal with the rubber containment pieces.



Second, unlike most competitors which have a level gravity zone, Bright Belt Filter Presses feature an inclined gravity section. The sludge feed box is lower than the discharge end of the gravity zone. Therefore, this promotes better dewatering by keeping the water laden sludge back by the feed box and carrying the solids up to the discharge only after a majority of water has drained through the filter. As a result, this gives the gravity zone more effective dewatering time than is possible with a level gravity deck. It also makes higher production rates possible.


Third, the wedge zone is where the upper and lower filter belts meet and envelope the slurry on two sides. As a result, Bright Technologies Belt Filter Presses have a patented radius wedge zone that applies a gentle pressure on solids in the slurry that provides superior conditioning prior to entry to the High Pressure/Shear Zone, and does not require any operator adjustment.


Finally, in this zone the filter belts are wrapped around steel rollers that progress from large diameter to smaller and as the diameter of the roll decreases the pressure on the sludge increases. The first pressure roll on a Bright Belt Press is a patented fabricated roll called a wing roll; because this roll features a 50% open area and convex inner surface that channels the liquid to outside of the roll so that it drops beyond the filter belt and does not re-wet it. Also, our rolls are triple stub plate design and constructed of stainless steel so that no roll coatings are required.

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Applications Include:


  • Municipal WWTP Sludge
  • Pulp and Paper Sludge
  • Water Plant Sludge
  • Aggregate Fines
  • Septage
  • Meat Processing Sludge
  • Canning Sludge
  • Animal Manure
  • Ink Sludge
  • Mineral Slurries
  • Grease Trap Waste
  • Food Products

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Bright Technologies Belt Press Features:

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Patented Radius Wedge Zone

  • Simulates Large Diameter Roll
  • Brings Belts into Convergence Sooner
  • No Operator Adjustments Necessary

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Pneumatic Belt Tension & Steering

  • Air Bellows Design is Very Durable and has No Seals to Fail
  • Not Affected by Corrosive Environment
  • No Worries of Leaking Hydraulic Fluid
  • Easy to Maintain and Service
  • Low Energy Requirement

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State of the Art Controls

  • 10 Inch Color Touch Screen Operation
  • PLC Modem for Factory Support
  • NEMA 4X Stainless Steel Control Panel
  • Alarm History Log
  • Operator parameter adjustment history
  • Operator adjustable system timers

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High Efficiency Gravity Zone

  • 4 Degree Incline for Exceptional Pooling and Control
  • UHMW Supports on 2″ Centers for Superior Drainage
  • Combination angle and “V” Plow configuration

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Pneumatic Variable Orifice Sludge Mixing Valve

  • Mixing Action is Adjustable from Any Convenient Location No Matter Where the Valve is Located.
  • Reliable / The Rubber Sleeve is the Only Wetted Part
  • Easily Adjustable from Low to High Mixing Energy
  • No Mechanical Moving Parts or Seals to Leak or Bind

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Belt Filter Press Mounted Operator Station

  • Start and Stop the System
  • Controls Polymer Dosage, Belt and Sludge Pump Speed
  • Displays Current Faults
  • Modifies System Timers
  • Sludge Pump and Polymer System Hold Function

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Need Rental Units?

Check out our rental page.[/vc_column_text][/vc_column][vc_column width=”1/2″][vc_column_text]Successful Start-Up of Bright Technologies 1.7 Meter Belt Filter Press Skid mounted Unit.[/vc_column_text][vc_single_image image=”14501″ img_size=”medium”][/vc_column][/vc_row][vc_row full_width=”stretch_row” css=”.vc_custom_1532962784343{background-color: #2580b5 !important;}”][vc_column][vc_column_text]

For more information or a quotation on Bright Technologies Belt Filter Press Systems contact one of the following:

[/vc_column_text][vc_row_inner][vc_column_inner width=”1/2″][vc_column_text]Julie VanderMoore
Inside Sales
Phone 269-793-7183

Stuart Sebright
General Manager
Phone 269-793-7183[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/2″][vc_single_image image=”12431″ img_size=”full”][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row]

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