Osorb® Media for
LID Stormwater Management
Dr. Paul L. Edmiston
CSO
p.edmiston@absmaterials.com
Dr. Hanbae Yang
Environmental Engineer
h.yang@absmaterials.com
330-234-7999
ABSMaterials, Inc.
1909 Old Mansfield Rd.
Wooster, Ohio 44691
All Materials Prepared for Non-Confidential Review
Copyright 2014 ABSMaterials
Complete Presentation
ABSMaterials Products
Advanced Materials to Treat Water
Urban stormwater
Micropollutants
Agricultural: pesticides, nutrients
Industrial waters
Leachates
Green infrastructure and low impact stormwater systems
Waterway and watershed protection
Ports
Golf courses
Airports
Marinas, bilge
Industrial and agricultural run-off
© ABSMaterials, Inc 2014
Osorb® Media
Osorb is a highly porous and flexible polysilsesquioxane. The
network expands upon absorption of organic liquids and vapors.
Absorbs:
Solvents
Lipids
Pharmaceuticals
Does not absorb water
Swelling is due nanomechanical expansion of a mesoporous silica matrix.
© ABSMaterials, Inc 2014
Other features of Osorb media
1. Reactive metal particles (ex. Fe0) can be incorporated into Osorb.
2. Osorb is biocompatible and resists biofilm formation.
3. Adsorption is reversible allow processes such as in situ bioregeneration.
4. NSF 61 certification currently in progress.
Internal and Third Party Testing
Atrazine
Geosmin/MIB
Metaldehyde
PAHs
PCBs
TCE
Estrogen mimics
NP nutrients
Internal/data shared with manufacturer
Water technology client in Korea
Internal and Thames Water in near future
Internal and brownfield remediation client
Internal and brownfield remediation client
Ohio EPA
Internal and Scottish Water
Internal and Ohio State University
© ABSMaterials, Inc 2014
Full Scale: College of Wooster, NSF Bioswale
© ABSMaterials, Inc 2014
Drinking Water: Osorb®-Coated Sand
Regular Filter Sand
smooth hydrophilic surface – no contaminant removal
500nm
Organosilica Coated Sand
microporous, hydrophobic layer – adsorbent film
200nm
© ABSMaterials, Inc 2014
Drinking Water: Osorb Treatment Concept
© ABSMaterials, Inc 2014
Drinking Water: Osorb®-Metal Composites
Al-Osorb
-
Fe-Osorb
Mg-Osorb
Ni-Osorb
Zn-Osorb
Metal-Osorb composites can be
manufactured. Fe-Osorb preferred.
- Examined reduction of motor oil, nitrate,
phosphate, atrazine, estradiol, triclosan, and
ethylene glycol.
- Continue research to determine reduction
mechanism and longevity.
© ABSMaterials, Inc 2014
Osorb Stormwater and LID Systems
Low cost, highly effective way to treat stormwater in place.
→ 4.5 Acres Total Drainage
→ Footprint: 2,400 sq. ft.
→ 5,000,000 gallons rain/year
→ $105,000
→ 12 Year Service Cycle
→ $0.0013/gallon cost
© ABSMaterials, Inc 2014
Osorb System - General Concept Design
Osorb is mixed 0.2-1% in the soil near the rhizosphere layer to buffer contaminants.
© ABSMaterials, Inc 2014
Bio-Mix Osorb® Enhanced Bioswale
Why Osorb?: It is mixed in soil (1%) and absorbs toxins
from stormwater inputs protecting plants and animals
BioMix-Osorb is a blend of glass which when added to swales and filter strips will
allow 30-90% improvements on nutrient controls.
© ABSMaterials, Inc 2014
Above ground biomass
Better plant growth performance with Fe-Osorb amendments.
© ABSMaterials, Inc 2014
Industrial Bioswale Design
Pollutant Loads and Removal Efficiencies
Measured at OARDC STAR Lab test facility.
10-27-12, >4 inches of rainfall this day from Superstorm
Sandy. Bioswale design for 1.0-1.5 inch rainfall.
2012-14 NSF SBIR
Funded Research
© ABSMaterials, Inc 2014
Industrial Bioswale Design
Pollutant Loads and Removal Efficiencies
a Net mass removal (%) for each runoff event performed by integrating hourly flow rate and concentration data collected from influent and effluent.
b Spiked solution consisted of nitrate (50 g N), phosphate (50 g P), atrazine (500 mg), 2,4-D (500 mg), Cu (20 g), Pb (20 g), and Zn (60 g) were added
into the
bioretention system during a rainfall event
© ABSMaterials, Inc 2014
Osorb Bioswales in Ohio: CLE Airport
CLE010 – Osorb System for Deicer Runoff Treatment
Water Unsaturated Zone
(225,000 sq. ft.)
1 inch rainfall = 1.65 million gallons of runoff
Water Saturated Zone
BioMix-Osorb (0.5% w/w) soil
(620,000sq. ft. in 0.5 ft. layer)
PENDING
© ABSMaterials, Inc 2014
LID systems where Osorb can be deployed
Osorb protects biology and
improves treatment performance of
LID systems
Bioswale
Bump-Out
Green Roof
Rain Garden
© ABSMaterials, Inc 2014