1. Proprietary and Confidential ©2009 EcoSense
• EcoSense International Inc. formed in 2000
• EcoVaultTM , The Next Generation Baffle Boxes
• EcoSenseTM, Inlet Insert Filtration and Debris Collection
• Oxy-ProTM, Environmental Redox Chemistry (Nitrate Reduction)
• Smart GrowTM, Environmentally Sound Fertilization and Weed Control
• Vault-OxTM, Static Stormwater Remediation Chemistry

2. Vault-Ox™
Net 20 lbs.
Contains (4) 5 lb. packets
Keep material dry. Store in a cool dry place.
Do not store or expose to heat sources. For
more information see Material Safety Data
Sheet.

3. Interevent Water Quality in Manufactured BMP’s
• Strynchuk, Royal and England, 1999 Reported “the majority of organic-based
pollutants, which leach from grass clippings and leaves into water will be
released within 1 to 22 days…BOD peaked at 9 days…most of the phosphorus
was released in the first day…”
• Marino and Gannon, 1991 Tested storm drain sediments during dry weather
periods and found “Extended bacterial survival in sediments to survival in
water…FC and FS in sediments remained stable for up to 6 days (the maximum
inter-storm dry period).”
• GPI Southeast, in the Final Report – Baffle Box Effectiveness Monitoring Project,
2010 reports “net exports of fecal coliforms and anaerobic conditions…” and
suggest “probable causes for FC growth in baffle boxes are the interevent
anaerobic conditions…” and point out “…use of any water storing box can lead
to increased FC counts to water bodies”.

4. Introducing Static Stormwater
Remediation Chemistry SSRC
Vault-Ox™
 Improves Dissolved Oxygen
 Sequester Phosphates
 Elevates pH
 Absorbs Nitrogen
 Promotes Oxidation of Organics
 Enhances Aerobic Activity
 Lowers COD/BOD
 Affordable and lasting

5.  Patented dry chemical containing
Vault-Ox™ calcium and oxygen
 Practically insoluble but slowly
degrades to release oxygen
 Sequesters phosphate: precipitates as
CaPO4 or FePO4
 Improves aerobic bioremediation
 Raises pH to alkaline state:
 Keeping metals out of solution
 Stormwater quality structures
 Underground water storage
 Ponds
 Ground water remediation

6. Properties of Vault-Ox™ Granules
 Appearance Yellowish white granules
 Composition CaO2 and additives
 Calcium peroxide (%) 70% min
 Available oxygen (%) 15.5% min
 Metal impurities Meets Food Chemicals Codes
 Particle size (90%) ~ 500-2000µ
7.5
 pH (0.05% suspension)

7. Chemistry of Vault-OxTM in Water
 At natural pH – very slow decomposition generating
oxygen and lime
2 CaO2 + 2 H2O 2 Ca(OH)2 + O2
 Rate of oxygen generation depends upon
 Product characteristics - particle size, formulation,
etc.
 Environmental conditions - water quality, pH,
agitation, concentration, etc.

8. Vault-OxTM
A source of Alkalinity
 Increases the formation of calcite and apatite
 This increases the P-binding capacity of calcium
 Reduces free H2S concentrations
 Formulation buffers and regulates pH
 Counters acid rain
 Prevents acidification of water when sulfides are
oxidized
 Maintains heavy metals in an immobilized oxidized
state

9. Chemistry of Vault-Ox™ in Acid
 In buffered systems at lower pH, CaO2 dissolves faster and
produces progressively increasing amounts of H2O2
CaO2 + 2H+ Ca2+ (aq) + 2H2O2
Ca(OH)2 + 2H+ Ca2+ (aq) + 2H2O

10. SRP Removal Efficiency
Vault-oxTM vs. Aeration
140
CaO2
120 Aeration
Anoxic
100
80
P (mg/L)
60
40
20
0
0 5 10 15 20 25
Time (Days)
Treatment done after 15 days of incubation
Zhang et al, Water Science & Tech., 50, 173 (2004)

11. Effect of CaO2 on BOD, Organic C and N
100
% Removal
50 w/ CaO2
w/o CaO2
BOD Organic C Organic N
(Hanh et al, Env. Tech.), 26, 581 (2005)

12. Retention Pond – Before Treatment

13. Retention Pond – 6 Weeks Later
2lb/acre.ft CaO2 + Enzymes

14. 8
10
0
6
9
1
5
4
2
3
7
3/26/2010
3/28/2010
3/30/2010
4/1/2010
4/3/2010
4/5/2010
4/7/2010
4/9/2010
4/11/2010
4/13/2010
4/15/2010
4/17/2010
4/19/2010
4/21/2010
4/23/2010
4/25/2010
4/27/2010
4/29/2010
5/1/2010
5/3/2010
5/5/2010
New Water Sample
5/7/2010
5/9/2010
5/11/2010
5/13/2010
5/15/2010
5/17/2010
5/19/2010
5/21/2010
5/23/2010
5/25/2010
Test
Control

15. 7.50
7.00
9.50
6.50
9.00
6.00
8.50
8.00
40263
40265
40267
40269
40271
40273
40275
40277
40279
40281
40283
40285
40287
40289
40291
40293
40295
40297
40299
40301
40303
New Water Sample
40305
40307
40309
40311
40313
40315
control
40317
40319
pH
40321
40323
Test
Control
Note: The sample water contains high
amounts of sulfur, forming H2S in the

16. Vault Ox™
can be added
to a chamber
as free
granules or
in an easily
retrofit
perforated
tubing and
mesh
system.

17. Addition of VaultOx™ with natural Z-100 have desirable
selctive ion exchange and absorption properties that be
used in the removal of:
•Ammonia from wastewater/stormwater
•Heavy Metals from industrial process,waste and
stormwaters
•Effective in the adsorption of aluminum, antimony,
arsenic, barium, cadmium, chromium, colbalt, copper, iron,
lead, magnesium, manganese, mercury and nickel

18. Control 4/21/2010 Sample with Vault Ox 4/21/2010
Coliforms: purple-blue
E. coli: pink
non-Coliform: colorless

19. Control 4/25/2010 Sample with VaultOx, Four day treatment

20. Safety and Handling
 Vault-oxTM Granules is classified as a 5.1 Oxidizer -
Packing group II
 All individuals who handle the product for shipping
need DOT training (including those who prepare
paperwork)
 Keep containers closed, dry and away from direct
sunlight and sources of heat
 Decomposition agents include moisture, dirt,
organic matter, reducing agents, acids

21. Health Hazards
 Most health hazards come from direct skin contact
and inhalation of dust
 Wear personal protective equipment
 Dustproof chemical goggles
 Impervious protective gloves
 Avoid breathing dust
 Avoid skin contact

22. www.EcoSenseInt.com
Info@ecosenseint.com