Overview

The Dusky Shark is renowned for eating just about anything, including garbage. And like this shark, our Dusky Shark Septage Receiving Equipment is highly capable of screening nearly any material out of a wastewater flow, including septage and grease trap material that other equipment cannot manage. The Dusky Shark Septage Receiving Equipment is highly efficient, reliable and easy to install.

Septage Receiving Equipment

  • High capacity, heavy duty continuous band screen in a tank
  • Effortlessly screens high TSS and FOG flows
  • Fully enclosed for safety, aesthetics and odor control
  • All maintenance above tank
  • All stainless steel fabrication including flanged tank
  • Through Flow and Center Flow models available
  • Sophisticated monitoring and billing control available
  • No rotating brushes
  • Dedicated Whitetip Shark Washing Compactor

Septage Receiving Equipment Models

Dusky Shark Septage Receiving Station. Coarse Screens. Fine Screens

Through Flow Dusky Shark

  • Extremely durable design is ideal for the most abusive environments
  • Continuous belt design eliminates potential for jamming and removes large solids
  • Easily captures and removes rags
Dusky Shark Septage Receiving Station. Coarse Screens. Fine Screens

Center Flow Dusky Shark

  • Highest Screening Capture Ratio (93.25% for 2mm and 84% for 6mm) with no screen bypass or carry-over
  • Excellent for sensitive process protection
  • Compact footprint with elongated drum and integral compactor

Features & Benefits

Select the model and rollover each feature to interact.

Center Flow Dusky Shark Septage Receiving Station

Highest evaluated Screening Capture Ratio (SCR)
Heavy-duty flanged stainless steel tank
Proprietary grid-to-frame and panel-to-panel sealing system
Sophisticated billing and flow monitoring controls
Integrated screening handling
Dual spray wash unloading
All maintenance above tank
Fully enclosed
No submerged sprockets, bushings or bearings
Elongated drum design
UHMWPE Guide Links
Highest SCR for 6mm (84%) and 2mm (93.25%)* means the best protection on the market for sensitive downstream processes.
*National Screen Evaluation Facility Inlet Screen Evaluation Comparative Report by UK Water Industry Research including 45 different screens by leading manufacturers.
High-capacity, heavy duty, self-standing and completely enclosed stainless steel tank/screen combination allows for high flow rates while dramatically reducing headloss. Flanged connection points allows for easy connection of influent and effluent lines. Cold weather protection available for tank and screen.
heavy-duty-tank
Total capture of high TSS and FOG solids with zero screen bypass or carry-over and no hinges to wear or neoprene to replace. Proprietary sealing system also eliminates ragging commonly associated with other screen designs.
grid-to-frame
Controls are offered from basic operation to sophisticated automation. Equipment can be integrated into network controls to monitor load details, flow metering, prepay or pay-as-you-go billing and level sensing.
controls
Internal compactors and sophisticated screening washing options provide a turn-key screening package.
integrated-screenings-handling
Offloads and easily removes screened material, including wipes, rags, fats and grease without a brush or wiper. Heated options available.
dual-spray-wash
Easy access to all routine maintenance and grid points means never having to isolate or dewater tank for confined space entry.
all-maintenance-above-tank
Significantly improves safety, odor control and aesthetics for indoor and outdoor operation.
fully-enclosed
No submerged sprockets and bearings below the waterline eliminates ragging commonly associated with other screen designs and the need for required maintenance in the tank. If after years of operation wear tracks need replacement they can be bolted on in the field.
no-submerged-sprockets
Compact footprint design allows tank to handle high and low flows without grit settling. It also can provide a high capture replacement screen into existing tank with no modifications.
elongated-drum-design
Proprietary high density, low friction drive chain efficiently directs grid around screen with no maintenance, even in abrasive and high grit applications.
uhmwpe

Through Flows Dusky Shark Septage Receiving Station

Continuous belt design
Heavy-duty flanged stainless steel tank
Proprietary grid-to-frame and panel-to-panel sealing system
Sophisticated billing and flow monitoring controls
All maintenance above tank
No submerged sprockets, bushings or bearings
Fully enclosed
Integrated screening handling
Low profile bottom shoe
UHMWPE Guide Links
Spray wash unloading
Extremely durable screen/tank design allows for high flow rates while dramatically reducing headloss. Belt travels from the clean to the dirty side in an upward motion which is ideal for the capture and removal of rags and large solids and eliminates the potential for jamming.
continuous-belt
High-capacity, heavy duty, self-standing and completely enclosed stainless steel screen/tank combination. Flanged connection points allows for easy connection of influent and effluent lines.
heavy-duty-tank
Total capture of high TSS and FOG solids with zero screen bypass or carry-over and no hinges to wear or neoprene to replace. Proprietary sealing system also eliminates ragging commonly associated with other screen designs.
proprietary-sealing-system
Controls are offered from basic operation to sophisticated automation. Equipment can be integrated into network controls to monitor load details, flow metering, prepay or pay-as-you-go billing and level sensing.
controls
Easy access to all routine maintenance and grid points means never having to isolate or dewater tank for confined space entry.
all-maintenance-above-tank
No submerged sprockets and bearings below the waterline eliminates ragging commonly associated with other screen designs and the need for required maintenance in the tank. If after years of operation wear tracks need replacement they can be replaced in the field.
no-submerged-sprockets
Significantly improves safety, odor control and aesthetics for indoor and outdoor operation.
fully-enclosed
Internal compactors and sophisticated screening washing options provide a turn-key screening package.
integrated-screenings-handling
Low profile bottom shoe and polypropelene brush eliminates screen bypass, seals grid and limits headloss.
low-profile-bottom-shoe
Proprietary high density, low friction drive chain efficiently directs grid around screen with no maintenance, even in abrasive and high grit applications.
uhmwpe
Offloads and easily removes screened material, including wipes, rags, fats and grease without a brush or wiper. Heated options available.
spray-wash

Screen Grid Options

We offer opening options that include stainless steel links and perforated panels as well as UHMWPE perforated panels. Our Dusky Shark Septage Receiving Equipment can accommodate low-to-high flow rates and features opening sizes from 1mm to 75mm.

Laced Links



Stainless Steel Laced Links

Rectangular Openings from 1-75mm

The Laced Link-style grid is ideally suited for water and wastewater applications where fine screening is required with low headlosses.

Advantages

  • Able to withstand extremely harsh environments
  • Strongest grid available
  • Excellent unloading of screenings
  • Highest open area percentage/very efficient
  • Easily handles large flows
  • Extremely high open area percentages resulting in lower grid velocities
  • Smaller footprint
  • Wide range of opening sizes
  • Versatile and proven
  • Excellent in the screening of FOG and stringy material

Limitations

  • Less efficient capture of hair and fibrous material
  • Lower screening capture ratio


 

Perforated Panels



UHMWPE & Stainless Steel Perforated Panels

Round Openings from 1-9mm

Our perforated panel grid is excellent for a variety of municipal water and wastewater applications where fine screening is required to protect sensitive process equipment, such as Membrane Protection (MBR’s).

Advantages

  • Highest screening capture ratio
  • Exceptional sensitive process and membrane protection (MBR’s) in wastewater applications
  • Patented grid design maintains strength and openings tolerances for life
  • Effectively removes hairs/fibrous material

Limitations

  • Greater water pressure/volume requirements
  • Significant collection of fecal and organic matter
  • Higher headlosses



Theory of Operation

Center Flow



Flow passes into the screen and is diverted through the grid on each side of the unit. Solids larger than the openings in the screen’s grid are collected and begin to form a mat which is removed undisturbed from the flow resulting in extremely high solids capture. Screening capture ratios increase as the solids form a thicker mat. Level sensing devices can be connected to variable speed drives to automatically compensate for high solids loading during peak flows or low flow conditions by proportionally speeding or slowing the grid travel speed. This increases the capacity of the equipment when needed and reduces wear, thereby extending the life of the equipment.

Solids are transported to the top of the screen as flow is constantly presented a clean grid surface. As screenings traverse up and over the top of the screen they are discharged into screening handling equipment.  Drained wash water is discharged upstream – eliminating bypass.

Minimal friction is achieved through the use of Ultra High Molecular Weight Poly-Ethylene (UHMWPE) and stainless steel wear surfaces. Machined Delrin spacers precisely separate elements, eliminating metal-on-metal wear and extending the life of the grid. Wide stainless steel tracks ensure years of trouble-free operation.

The stainless steel foot section and wear tracks prevent solids bypass. Unlike traditional screens, all solids with diameters larger than screen opening sizes cannot pass under, through or over the screen. Even in the event debris is not unloaded by spray wash, it always remains on the “dirty” side of the screen.

fine screen, septage receiving equipment



Through Flow



Flow passes through the screen while solids are intercepted and collected by the continuously moving grid. Solids larger than the openings in the screen’s grid are collected and form a mat, which is removed undisturbed from the flow resulting in extremely high solids capture and easy unloading.

A low profile bottom shoe and polypropylene brush seals the grid, preventing solids from bypassing under the screen. Flow is constantly presented a clean grid surface as solids are transported to the top of the screen. Screenings are discharged into screening handling equipment.

Minimal friction is achieved through the use of Ultra High Molecular Weight Poly-Ethylene (UHMWPE) and stainless steel wear surfaces. Machined Delrin spacers precisely separate elements, eliminating metal-on-metal wear, reducing power and maintenance requirements and ultimately extending the life of the grid. Wide stainless steel tracks ensure years of trouble-free operation. Stainless steel grid elements provide superior strength while reducing area and headlosses. Heavy gauge stainless steel links are not susceptible to breaking and damaging downstream equipment.

Level sensing devices can be connected to variable speed drives to automatically compensate for high solids loading during peak flows or low flow conditions by proportionally speeding or slowing the grid travel speed. This increases the capacity of the equipment when needed and reduces wear, thereby extending the life of the equipment.

coarse screen, septage receiving equipment



Sealing

Our patented sealing system holds extremely tight tolerances between panels and grid to frame, eliminating the bypass of solids and intrusion of abrasive grit. We can ensure a tight tolerance down to 0.5mm in all locations on the screen, even those areas that other screens leave vulnerable.

Grid-to-Frame

  • Guide Links create a continuous chain around edge of selected grid
  • Formed stainless steel plate creates a labyrinth seal with Guide Link slot
  • Fully adjustable and removable for inspection
  • Continuously sealed for entire submerged grid path

Panel-to-Panel

  • Slotted stainless steel hook links separated by Delrin spacers
  • Links support panels every 3” (75mm)
  • Panels are closely held against spacers
  • No neoprene to erode or fall off
  • No hinge to loosen or stretch
  • Simple in-situ replacement
Center Flow Screen

Drive

Patented direct drives efficiently power the screen. Stainless steel sprockets support and pull the black UHMWPE Guide Links, resulting in little-to-no friction and long wear. Most importantly, no part of the drive touches the grid. Therefore, a bent grid element will not be compounded into a disabled screen.

Through Flow Screen
Septage receiving station
Septage receiving station

Electric Drive

Resilience to weather, wear, and lack of maintenance make this model an excellent choice for virtually every installation. Through sensible design and material selection this headworks screen is very efficient, utilizing as low as a 0.5 hp (0.38 kW) electric motor. Screens will be wired to suit applications phase and voltage supplies. Chain guards are standard on all electrical models. Explosion proof motors are optional.

 Hydraulic Drive

The Dusky Shark Septage Receiving Station with hydraulic drive incorporates all the benefits of the electric drive with the added capability to be operated submerged. This is a useful option when flooding can occur and reliability is key.

Features

  • Solid stainless steel sprockets and drive shaft
  • Lifts and supports grid
  • Minimum four lugs engaged per sprocket
  • Adjusts to tension grid to extend wear life of screen
  • Grid does not touch drive or unloading mechanism
  • Low friction guide links
  • Fractional hp and kW requirements
  • Only two grease fittings per screen
  • Direct drive uses no chains or sprockets

Project Profiles

Drawing on our 35+ years of experience and more than 2,000 unique installations worldwide, your equipment will be specifically engineered to best fit the needs of your application.

 


Screenings Discharge

Our highly effective spray wash provides a superior method of cleaning the grid while prohibiting carryover. Spray nozzles efficiently direct pressurized water over the width of the grid to positively remove screenings and prevent carryover. This method of discharge requires a relatively clean source of water to avoid clogging. Conveyance and compaction may be recommended depending on disposal requirements.

Through Flow Screen

Screenings Handling Equipment

An effective screenings handling system is a critical component to every water or wastewater treatment plant. Hydro-Dyne’s turn-key screenings handling solutions are manufactured at the highest level of quality and designed to accept, wash, dewater, compact and/or transport collected screenings. In wastewater applications, screening handling systems are particularly important as they are designed to return organic material to the channel and produce clean, dry and inorganic product that can be properly disposed of in either a container or bagging unit.

Screening Handling At-A-Glance

  • Collect and convey screenings for disposal
  • Returns organics and wash water to channel
  • Screenings meet strict landfill requirements
  • Compactors reduce disposal weight and volume
  • Bagging units can contain odor
  • Agitation can be introduced for more thorough cleaning
  • Can be designed as integral and external models
  • Shafted and shaftless screw flights

Whitetip Shark Washing Compactor

  • Collects, conveys and compacts screenings for disposal
  • Dewatering and conditioning
  • Returns most organics and wash water to channel
Thresher Shark Washing Machine. Screenings Handling

Thresher Shark Washing Machine

  • Extremely thorough washing removes virtually all fecal material and produces “clean” and compacted screenings for disposal
  • High capture of inorganic solids reduces plant operating costs and improves sludge quality
  • Organic material returned to plant for biologic treatment
Spinner Shark Screw Conveyor. Screenings Handling

Spinner Shark Screw Conveyor

  • Collects and conveys screenings for disposal

Septage Receiving Equipment Options

  • T304, T316 or Super Duplex stainless steel construction
  • Cold weather/freeze protection
  • Integral or external washing compactor
  • Controls are offered from basic operation to sophisticated automation
  • Level sensing, monitoring and billing controls
  • Chopper pump
  • Electric, hydraulic or explosion-proof drives

Thank you for your interest in our company.

Do you have any questions or would you like more information?  We’d be happy to hear from you.


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