FSA Conference June 2014

Transcription

1 FSA Conference June 2014

2 BMP s Water Quality Components SNOUT High Performance Vented Hood Stainless TrashScreen Bio-Skirt Anti-Microbial Treated Hydrocarbon Reducing Skirted Boom Flow Restrictor Stainless Flow Deflector

3 How the SNOUT Works Anti-siphon vent prevents surface pollutants from getting sucked under SNOUT* * Static water level will stay at pipe invert due to vent, preventing siphoning from occurring.

4 Enhanced Drainage Network or a structural treatment train. Add sumped structures wherever possible or at strategic nodes. Removing pollutants incrementally near entry points (inlets) benefits downstream facilities and requires less sophisticated methods. Structures upstream reduce gross-pollutant burden downstream. Micro-Detention

5 GOOD DESIGN IDEA: Specify SNOUTs as a standard practice prior to discharge into any underground storage system or a pond to reduce maintenance. CAD and PDF files furnished by BMP Available. SERVICE LIFE OF UNDERGROUND BASIN DRAMATICALLY INCREASED AS LOAD OF TRASH AND GROSS POLLUTANTS STAY IN INLETS RATHER THAN ACCUMULATING IN INFILTRATION SYSTEMS

6 Simple Proof Two Structures, Same Site, Same Time, Different Results Inlet shown with no SNOUT that flows into structure with SNOUT. Water clear, no oil, little trash. Structure with SNOUT stopping trash, oil and debris from upstream. Site is in West Valley City, Utah. Installation was featured in Stormwater Magazine Article.

7 STAINLESS TRASHSCREEN LASER CUT 304 STAINLESS STEEL FOR LONG LIFE SIZES CAN BE TAILORED TO LOCAL NEEDS SUCH AS REGIONAL WATER QUALITY BOARD (E.G. 5mm FULL CAPTURE REQUIREMENTS). HAS BEEN CERTIFIED BY CALIFORNIA AS FULL TRASH CAPTURE DEVICE. CAN BE USED UPSTREAM IN CONJUNCTION WITH END OF PIPE UNITS TO REDUCE BURDEN ON FILTRATION SYSTEMS OR OTHER DEVICES CONVERSION KITS AVAILABLE FOR R SERIES SNOUTS (MANHOLES) AVAILABLE FOR 12 THROUGH 52 SNOUTS

8 BMP Trash Capture System System uses full capacity of structures and can accommodate high flows.

9 50 SNOUTs are deployed along a section of beachfront in Myrtle Beach. 18Fs are for the 15 pipe, the 24F for the 18 pipe and the 30F for the 24 pipe. The primary pollutants of concern are trash and floatables that would otherwise be discharged to an ocean outfall. Each structure is typically a 3 x 4 or a 4 x 4 precast concrete catch basin with a 3 to 4 deep sump as a standard. TrashScreens are also used in key inlets. 30F SNOUT 14 th Avenue N. and N. Ocean Boulevard, Myrtle Beach, SC 24F with TrashScreen Main Street N. Myrtle Beach, SC

10 40 SNOUTs were deployed for Trash, Floatables, Oil and fine solids removal prior to discharge into a series of 15 and 18 perforated pipes. Hoods are used on both the inlet and outlet pipes as flow can occur in both directions with changes in the level of the water table due to rain events and seasonal fluctuations. (Myrtle Beach, SC)

11 DDC Engineers has designed a 200 CFS gross-pollutant removal system for the Main Street outfall in North Myrtle Beach, which will utilize 24F, 30F, 96FTB SNOUTs, BMP Stainless Trash Screens and the BMP Bio-Skirt oil and bacteria reducing booms. The project began in October of 2013 and was finished in May A 3 + rain event occurred in less than 2 hours in mid May. Still waiting for photos, but system worked very well according to engineers.

12 Questions? Best Management Products, Inc