ecosense international, inc. vaultox
TRANSCRIPT
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
Net 20 lbs.
Contains (4) 5 lb. packetsKeep material dry. Store in a cool dry place.
Do not store or expose to heat sources. For
more information see Material Safety Data
Sheet.
Vault-Ox™
• Strynchuk, Royal and England, 1999 Reported “the majority of organic-basedpollutants, which leach from grass clippings and leaves into water will bereleased within 1 to 22 days…BOD peaked at 9 days…most of the phosphoruswas released in the first day…”
• Marino and Gannon, 1991 Tested storm drain sediments during dry weatherperiods and found “Extended bacterial survival in sediments to survival inwater…FC and FS in sediments remained stable for up to 6 days (the maximuminter-storm dry period).”
• GPI Southeast, in the Final Report – Baffle Box Effectiveness Monitoring Project,2010 reports “net exports of fecal coliforms and anaerobic conditions…” andsuggest “probable causes for FC growth in baffle boxes are the intereventanaerobic conditions…” and point out “…use of any water storing box can leadto increased FC counts to water bodies”.
Interevent Water Quality in Manufactured BMP’s
Introducing Static Stormwater Remediation Chemistry
Improves Dissolved Oxygen
Sequester Phosphates
Elevates pH
Absorbs Nitrogen
Promotes Oxidation of Organics
Enhances Aerobic Activity
Lowers COD/BOD
Affordable and lasting
SSRC
Vault-Ox™
Vault-Ox™ Patented dry chemical containing
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
Properties of Vault-Ox™ Granules
Appearance
Composition
Calcium peroxide (%)
Available oxygen (%)
Metal impurities
Particle size (90%)
pH (0.05% suspension)
Yellowish white granules
CaO2 and additives
70% min
15.5% min
Meets Food Chemicals Codes
~ 500-2000µ
7.5
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.
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
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
SRP Removal EfficiencyVault-oxTM vs. Aeration
0
20
40
60
80
100
120
140
0 5 10 15 20 25
Time (Days)
P (m
g/L
)
CaO2
Aeration
Anoxic
Treatment done after 15 days of incubation
Zhang et al, Water Science & Tech., 50, 173 (2004)
Effect of CaO2 on BOD, Organic C and N
w/ CaO2
w/o CaO2
BOD Organic C Organic N
(Hanh et al, Env. Tech.), 26, 581 (2005)
% R
emo
val
100
50
Retention Pond – Before Treatment
Retention Pond – 6 Weeks Later2lb/acre.ft CaO2 + Enzymes
0
1
2
3
4
5
6
7
8
9
10
3/26
/20
10
3/28
/20
10
3/30
/20
10
4/1
/20
10
4/3
/20
10
4/5
/20
10
4/7
/20
10
4/9
/20
10
4/1
1/20
10
4/1
3/20
10
4/1
5/20
10
4/1
7/20
10
4/1
9/2
010
4/2
1/20
10
4/2
3/20
10
4/2
5/20
10
4/2
7/20
10
4/2
9/2
010
5/1/
2010
5/3/
2010
5/5/
2010
5/7/
2010
5/9
/20
10
5/11
/20
10
5/13
/20
10
5/15
/20
10
5/17
/20
10
5/19
/20
10
5/21
/20
10
5/23
/20
10
5/25
/20
10
Test
Control
New Water Sample
pH
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
40
263
40
265
40
267
40
269
40
271
40
273
40
275
40
277
40
279
40
281
40
283
40
285
40
287
40
289
40
291
40
293
40
295
40
297
40
299
40
301
40
303
40
305
40
307
40
309
40
311
40
313
40
315
40
317
40
319
40
321
40
323
Test
Control
New Water SampleNote: The sample water contains high amounts of sulfur, forming H2S in the control
Vault Ox™
can be added to a chamber as free granules or in an easily retrofit perforated tubing and mesh system.
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
Control 4/21/2010 Sample with Vault Ox 4/21/2010
Coliforms: purple-blue
E. coli: pink
non-Coliform: colorless
Control 4/25/2010 Sample with VaultOx, Four day treatment
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
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
