Our local contacts are experts who are ready to help
The CDS is a swirl concentrator hybrid technology that uses continuous deflective separation – a combination of swirl concentration and indirect screening to screen, separate and trap debris, sediment, and hydrocarbons from stormwater runoff. The indirect screening capability of the system allows for 100% removal of floatables and neutrally buoyant material debris 4.7mm or larger without binding. CDS retains all captured pollutants, even at high flow rates, and provides easy access for maintenance.
CDS is used to meet trash Total Maximum Daily Load (TMDL) requirements, for stormwater quality control, inlet and outlet pollution control, and as pretreatment for filtration, detention/infiltration, bioretention, rainwater harvesting systems, and Low Impact Development designs.
FEATURES | BENEFITS |
---|---|
Captures and retains 100% of floatables and neutrally buoyant debris 4.7mm or larger | Superior pollutant removal |
Self-cleaning screen | Ease of maintenance |
Isolated storage sump eliminates scour potential | Excellent pollutant retention |
Internal bypass | Eliminates the need for additional structures |
Multiple pipe inlets and 90-180º angles | Design flexibility |
Numerous regulatory approvals | Proven performance |
The Contech Design Center provides engineers unparalleled flexibility in the layout and configuration of a detention or infiltration storage system. Our latest release includes options previously unavailable in a free, web-based design tool:
*The CDS System has been certified by the California State Water Resources Control Board as a Full Capture System provided that it is sized to treat the peak flow rate from the region specific 1-year, 1-hour design storm, or the peak flow capacity of the corresponding storm drain, whichever is less.
Technical information for this product is located in the technical guide’s section.
View Technical InformationOur hydrodynamic separators are frequently installed upstream of detention and infiltration systems as pretreatment devices. By capturing the majority of sediment, hydrocarbons and trash and debris upstream of the storage system, maintenance becomes much easier as material is congregated into a smaller device with clear access for cleanout. Additionally, by utilizing pretreatment upstream of infiltration systems, sediment that would have clogged the stone voids in the storage envelope surrounding the storage chamber can be captured before entering the storage system thus extending the longevity of the entire system.
Our hydrodynamic separation products (including the CDS, Cascade Separator, SciCloneX, Vortechs, and Stormceptor Systems) are reliable, easy to install, and offer high-performance, proven, stormwater pollutant removal. The systems are widely accepted for effective solids removal and can be designed to achieve your site treatment goals - including TMDL requirements for TSS and trash.
Keep trash and debris out of your lakes, streams and oceans by installing one of our technologies at the inlet or outlet of your drainage system. Our systems - which include the CDS, Cascade Separator, SciCloneX, DSBB, Vortechs, and Stormceptor Systems are most effective on removing sediments, trash and debris, and oil and grease from storm water runoff.
Designing, manufacturing and installing high-volume stormwater detention and treatment systems requires expert engineering, planning, and logistical support to manage costs and keep the project on schedule and under budget. When you need a proven, large scale stormwater management system, “Go Big” with Contech.
Our hydrodynamic separation products are ideal solutions for preatreatment to rainwater harvesting. Not only do they improve the overall water quality, they also provide protect the pumps and controls from being overburdened with material that could clog and damage the mechanical system.
CONTECH DESIGN CENTER
Design HelpSpecifications Standard Details
Case Studies
Explore the case studies libraryOur team is ready to provide you with expert advice and assistance on local regulatory requirements, resulting in faster approvals.
Our engineers can review your requirements, weigh all options, and recommend the optimal solution to integrate with your site designs.
Our engineers can assist by providing product specific engineering calculations such as hydraulics, buoyancy, foundation reactions, and unit sizing.
We can quickly provide engineer’s cost
estimates to assist with your solution
selection process.
Our engineers can provide site-specific drawings for proposals, project meetings, and submittals, helping you be more efficient with your time.
Contractors know time is money, so we provide preconstruction meetings, delivery coordination, and on-site installation support to ensure a timely, smooth installation.