Bucksport, ME Storm King Halts CSO Related Flooding
An 18’ (5.5 m) diameter Storm King® system used as satellite treatment was smaller, more economical, and more efficient than conventional…
CSO screening and treatment
Storm King
Prevent 100% of combined sewer floatables and gross solids and 95% of grit and sediment from reaching the environment.
The Storm King® is an advanced hydrodynamic vortex separator that delivers exceptional removal of TSS, BOD and other materials at combined sewer overflow sites, preventing damaging pollutants from reaching the environment during heavy rainfall and surge events.
A small-footprint, non-powered, low-maintenance unit with low capital and O&M costs, the Storm King® is ideal for satellite treatment at overflow sites and can reduce project costs by up to 50% compared to conventional technologies.
If you’re based in North America, please view this page on oldcastleinfrastructure.com. Hydro International and Oldcastle Infrastructure are CRH companies.
The Storm King® is an advanced hydrodynamic vortex separator and floatables control device that delivers exceptional removal of TSS, BOD and other materials at Combined Sewer Overflow (CSO) sites, preventing damaging pollutants from reaching the environment during heavy rainfall and surge events.
The Storm King® hydrodynamic separator achieves exceptional removal of CSO pollutants, delivering 100% removal of floatables and gross pollutants and 95% removal of grit and sediment.
A small-footprint, non-powered, low-maintenance unit with low capital and O&M costs, the Storm King® is ideal for satellite treatment at overflow sites and can reduce project costs by up to 50% compared to conventional technologies. And with Hydro-Logic® Smart Monitoring technology you can rest assured that it's performing and protecting the environment exactly as designed at all times.
Applications
- Floatables control, sedimentation, and disinfection of CSOs
- New satellite CSO facilities and upgrades to existing CSO facilities
- Treatment of excess stormwater flows at WWTPs
- Stormwater treatment at central stormwater treatment plants
- Combined sedimentation, floatables control, and disinfection
Get superior CSO treatment
The Storm King® delivers 100% removal in two directions of gross solids, floatables and neutrally buoyant material larger than ¼ in (6mm), and achieves 95% removal of TSS and BOD - equivalent to primary treatment.
Combine floatables control, sedimentation and disinfection
The Storm King® incorporates a hydrodynamic separator to ensure exceptional removal of CSO pollutants, and trials conducted in the USA at Columbus, GA and Saco, ME show that the unit can also be used to provide disinfection in 30% of the area normally required for conventional disinfection technologies - enabling the system to provide multiple treatment functions in a single unit.
Reduce project costs
The Storm King® is a small-footprint, non-powered, low-maintenance unit with low capital and O&M costs, and offers up to 50% project cost savings when compared with conventional technologies such as micro-strainers.
Cut maintenance
With no moving parts and no power requirements, the Storm King® is a low-maintenance CSO treatment and wastewater management solution.
- Flow is introduced tangentially into the side of the Storm King®, causing the contents to rotate slowly about the vertical axis.
- The flow spirals down the perimeter, allowing the solids to settle out. This process is aided by rotary forces, shear forces and drag forces at the boundary layer on the wall and base of the vessel.
- The internal components direct the main flow away from the perimeter and back up the middle of the vessel as a broad spiral column, rotating at a slower velocity than the outer downward flow. By the time the flow reaches the top of the vessel, it is virtually free of settleable solids and is discharged to the outlet channel.
- The collected solids and floatables are then discharged by gravity or pumped out from the base of the unit to the sanitary sewer.
Pollutant removal rates
- Floatables, gross solids, neutrally buoyant material: 100% of ¼ in (6 mm) in two directions
- High rate disinfection in less than 8 minutes
- Grit and sediment: 95% removal of grit 106 micron and larger can be provided; different size systems can be provided for different levels of grit removal performance.
Columbus, GA Storm King® satellite treatment significantly reduces project costs.
Satellite treatment using Storm King® Separators at two CSO locations resulted in an estimated $20-30 million saving in project capital…
Storm King cleans up Chaohu's polluted lake
A Storm King® CSO treatment system improved water quality at a culturally important lake in Chaohu, China. Situation The Chinese…
Retrofit self-cleansing screen improves performance of Storm King
Retrofit self-cleansing screens enable three Storm King® hydrodynamic vortex separators to meet the 6 mm in two direction screening…
Belgian town achieves vital North European water quality targets
Storm King® helped the town of Namur, Belgium to prevent sewer overflows from its state-of-the-art Brumagne sewage treatment works and meet…
Q
What size Storm King® unit do I need?
A
The required diameter of a Storm King is a function of the peak design inflow rate, design removal performance and the available depth. Within defined design limits, unit diameter can be increased to counteract the effect of limited available depth. Please contact us to discuss your project requirements.
Q
What level of performance can the Storm King® achieve?
A
The performance efficiency of a hydrodynamic separator depends on the physical size of the unit (and consequently retention time) and on the settleability of the incoming sewage; purely neutrally buoyant material cannot be removed by gravitational forces alone. A hydrodynamic separator typically achieves the same removal performance as a primary sedimentation tank in a quarter of the plan area.
Higher loading rates can be used when less efficient performance is required, e.g. at a treatment works where grit and silt needs to be removed but where it is beneficial for finer fecal material to pass forward to further downstream treatment processes.
Q
Does the Storm King® also control the flow rate?
A
No, separate Hydro-Brake® flow controls are typically used to control the pass-on flow rate to treatment.
If a gravitational system is unobtainable then a pump can be used to control the pass-on flow to treatment as an alternative to the Hydro-Brake® flow control.
Parts & Spares
Keep your Hydro International water management systems running effectively and efficiently. Our services teams will supply you with…
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