
Dusky Shark Septage Receiving Station



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