What is Mixed Oxidant Solution? - MIOX Blog · What is in Mixed Oxidant Solution (MOS)? Anode (+)...
Transcript of What is Mixed Oxidant Solution? - MIOX Blog · What is in Mixed Oxidant Solution (MOS)? Anode (+)...
What is Mixed Oxidant Solution?June 2012
Superior Chemistry from Electrolysis Expert
Unique Cell technologyReliable, Self‐cleaning
Sodium Chloride Salt
Quaternary Ammonium Salt
Hypochlorite
Mixed Oxidant Hypochlorite withHydrogen Peroxide
Activated Quaternary Ammonium Hypochlorite
Output ChemistriesInput Salts
Efficacy
Disinfection Chemistries
Organic & Hydrocarbon Destruction
+ =UV Light
UV Activated Hypochlorite
Sodium Chloride Salt
Mixed Oxidant Solution (MOS) ChemistryDiscovered serendipitously in 1992, optimized systematically
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Cryp
tosp
orid
ium
inac
tivat
ion,
"log
kill
"
Geometry
"Log-Kill" Data (geometry, power)5 mg/L mixed oxidant dose as FAC
Power A
Power B
Power C
Power D
Power E
Concentration & duration of other oxidants depends on:
► Cell Configuration ► Power► Fluid Flow► Fluid Concentration ► Time in Cell► Temperature► Cell Coating► and more . . .
The combination of factors leading to optimal oxidant efficacy and duration is a key trade secret
What is in Mixed Oxidant Solution (MOS)?
Anode (+) Products
HOClClO2O3Cl2O2OH0, OH+
NaOClNaOHH2H2O2
Cathode (-) Products
► Traditional measurements of the additional oxidant(s) in MOS has not been successful
• Chlorine is a strong oxidant and interferes with measurement ► There are a small number of known compounds formed from reactions of NaCl
and H2O
Through partnership with academia and internal research, hydrogen peroxide (H2O2 ) is the additional oxidant in MOS
Mixed Oxidant Solution (MOS) Benefits and Advantages
► Superior Disinfection► Superior Biofilm Removal► Superior Residual Maintenance► Superior (lower) Disinfection By-Product Formation► Potential Microflocculation Effect
• Can reduce chemical costs and improve water quality
BEFORE MIOX AFTER MIOX
Hypochlorite
CDC Study - Inactivating Bacillus globigii (B.g.)
Mixed Oxidant Solution
0 min (untreated) 15 min 30 min 45 min 60 min
Mixed Oxidant Solution (MOS)Visible Effect of Trace Hydrogen Peroxide with Hypo
Bajszar, 2009; Validated in 3rd party studies at the Centers for Disease Control and Prevention
Microorganism Dose(mg/L)
Contact Time MOS(min.)
Contact Time
Bleach (min.)
Inactivation(log)
Differentiating Parameter
Reference
BACTERIAVibrio cholerae(Facultative Anaerobe)
2 1.8 4.0 4 log Time Venczel et al, 2004
Escherichia coli(Facultative Anaerobe)
2 3.8 5.0 4 log Time Venczel et al, 2004
Pseudomonas aeruginosa(Aerobe)
2 10 10 >4.8, MIOX 2.2, Bleach
Efficacy Barton, 1996
Legionella pneumophilia(Aerobe)
2 10 10 >5.0, MIOX 4.7, Bleach
Efficacy Barton, 1996
BACTERIAL SPORESBacillus sterothermophilus (Aerobe)
2 30 30 >5 , MIOX2.5, Bleach
Efficacy Barton, 1996
Clostridium perfringens spore (Obligate anaerobe)
2 13 18 2 log Time Venczel et al, 2004
Disinfection EfficacyPeer‐reviewed, 3rd Party
Mixed Oxidants Destroy Biofilm better than Sodium Hypo
Sodi
um H
ypo
MO
SMixed Oxidant Solution (MOS)Destroys biofilm more effectively than standard hypochlorite
Extensive biofilm growth
Coliform and Legionella hits
1.5 mg/L FAC dose
0.2 mg/L FAC residual
Biofilm eliminated
No bacterial hits
0.6 mg/L FAC dose
0.4 mg/L FAC residual
Sodium Hypo
Mixed Oxidant Solution
BEFORE MIOXCondenser Tube Sheet after extended run at a large industrial cooling tower.
Mixed Oxidant Solution (MOS)Proven Reduction in Biofilm and Algae Fouling
BEFORE MIOXAlgae is rampant with conventional biocide program at power gen plant.
AFTER MIOXCondenser Tube Sheet after 2.5 months of using MIOX.
AFTER MIOXCondenser Tube Sheet after 2.5 months of using MIOX.
“Reducing our treatment regimen …down to a single mixed oxidant product generated on site has resulted in substantial treatment chemical and labor cost savings.” -- Paul Schrock, NIPSCO Senior Chemist
Mixed Oxidant Solution (MOS)Reduce TTHMs by 35%
Chlorine Gas(Q2 '05 - Q1 '06)
Mixed Oxidants(Q2 '06 - Q1 '07)
Coto Laurel, Puerto Rico
Top Menu
► Reduction of biofouling
► Better residuals, even at high pH
► Reduced algae loading
► Replaced Nalco biocides
► Improved Production load
Top Menu
BEFORE MIOX AFTER MIOX
Superior Mixed Oxidant SolutionVisible Effect of Trace Hydrogen Peroxide with Hypo
“The discovery of positive Legionella counts in the hospital's cooling tower system required immediate intervention. Since MIOX was installed in July, no positive results have been noted.” --Case Study: Hospital Cooling Tower Application, Earthwise Environmental