Nutrient Separating Baffle Box® (NSBB®)
Superior nutrient pollution removal
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Overview
The Nutrient Separating Baffle Box (NSBB) is a high-performance vault stormwater treatment system, optimized for nutrient pollution removal.
It combines hydrodynamic separation with a patented screen system engineered to capture and store debris in a dry state to minimize nutrient leaching and allow for easy servicing.
The NSBB’s triple chamber design affords high total suspended solids (TSS) removal over a wide range of particle sizes, while patented deflectors ensure that no sediment scouring occurs during storm events and other high flows. This allows for on-line installation without the need for separate diversion structures.
The NSBB is a widely accepted stormwater treatment BMP among developers, civil engineers and municipalities nationwide.
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Features
High-performance stormwater nutrient pollution capture
Benefits
- Retrofits existing watersheds
- Patented screens maximize nutrient pollution storage and prevent debris loss
- Easy vacuum truck servicing
- Dry state storage separates debris and trash from water and sediment
- Will not go septic between storms
- Captures thousands of pounds of debris, sediment and nutrients
- Pretreatment for rainwater harvesting and detention areas
- Meets requirements for full trash capture TMDL programs
NSBB removal efficiencies up to:*
- 20% Nitrogen
- 19% Phosphorus
- 90% TSS
*Varies based on sizing & site conditions
LEED Credit Eligible
Eligible for LEED credits – see Section 6.2, Stormwater design – quality control
SIMPLE INSTALLATION
- Low pick weights; comprised of multiple sections
- Fast set: pre-installed internal components (optional)
- Minimal excavation required
OPERATION
- Runoff filters through the screen, leaving behind pollutants while hydrocarbons collect in front of the skimmer.
- Patented turbulence deflectors prevent sediment from becoming resuspended by settling in lower chambers.
- Nutrient pollutant load is not lost due to static water and will not be flushed out during the next storm event.
- Separating organic matter from the static water prevents bacterial buildup.
EASY MAINTENANCE
- Patented screen holds nutrient pollution dry to improve ease of maintenance.
- Easy maintenance access via top hatches / manholes without need for confined space entry.
- Hinged screens allow for full vacuum access to inner basket and lower sediment chambers.
- After cleaning sediment chambers, closing and securing bottom screen doors prevents debris loss.
WATER QUALITY ECO-FRIENDLY SUSTAINABLE
The Nutrient Separating Baffle Box is a multi-stage, self contained treatment system. Each subsequent component within the system protects prior stages from clogging issues or failures. These stages include filtration, hydrodynamic separation and hydrocarbon absorption.
- Filtration is provided by a rectangular screen system which is suspended above the static water level. The screen has a storage capacity of several cubic yards depending on the model and a primary function to capture gross solids such as trash and debris.
- Hydrodynamic separation is facilitated by three settling chambers which work to target smaller sediments and particulate metals.
- Patented screen system prevents debris loss and nutrient pollution leaching. No need to service after each storm event with dry state storage as compared to competing treatment systems.
Specs & Downloads
Helpful Information
Product Information
- pdfNSBB Brochure
- pdfNSBB Operation Manual
- pdfNSBB Installation Guide
Videos
Products
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