2025 Nelsen Corporation Catalog - Catalog - Page 125
Mang-Ox™
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Advantages
• Efficient reduction of manganese, iron & hydrogen sulfide
• Will process high flow rates with low pressure drop
• Ability to be utilized with common oxidants including:
- CL2 (gas), - Sodium hypochlorite,
- Potassium Permanganate
• 10 – 30 second reaction time with oxidant additive
• Converts ferrous iron to ferric iron
• Converts H2S to sulphur
• Converts Manganese to MnO2
• Allows for adequate reaction time to permit for the formation of
ferric hydroxide
• Allows for physical straining of the ferric hydroxide floc and sulphur
until media requires backwashing
• Allows for adsorption of MnO2
• NSF/ANSI Standard 61-2002 Certified
Resins, Media & Chemicals
Mang-Ox™
Mang-Ox™ is a high rate, granular filter media used for removing
hydrogen sulfide, iron and manganese compounds from water
supplies. Mang-Ox™ operates both as a classical filter working with
an oxidant and as a catalytic media due to its ability to accelerate
the reaction between the oxidizing agent and any prevalent
dissolved oxygen with sulfide, iron and manganese present.
Dissolved iron, manganese and hydrogen sulfide will stay in solution
unless the equilibrium is changed. Iron and manganese that is
not oxidized become catalytically precipitated and then adsorbed
directly on the media. Mang-Ox™ is a very dense media that stops
oxidized (precipitated) forms of iron, manganese and hydrogen
sulfide from passing through the bed. Most of the manganous
manganese is rapidly removed in the first few inches of the media
where it is further oxidized to manganese dioxide.
The media must be properly backwashed to break loose and remove
the filtered contaminants and precipitated iron, manganese and
hydrogen sulfide. System sizing of the control valve and tank are
necessary to sustain media performance.
A continuous reaction occurs with the addition of an oxidant,
regenerating the media surface and replenishing the Mang-Ox™.
For difficult applications, Mang-Ox™ filters can be enhanced with
aeration, chlorination, and ozone. Because of Mang-Ox’s™ naturally
high manganese dioxide content, it provides a higher adsorption
capacity than other media. A Mang-Ox™ filter is recommended
before softeners to protect the ion exchange resin from fouling.
Applications:
• Removal of Iron up to 10 ppm
• Removal of Manganese up to 5 ppm
• Removal of Hydrogen Sulfide (rotten egg smell) up to 3 ppm
• Not recommended for Iron Bacteria and Manganese
bacteria removal
• Not recommended for tannin and organics removal
Certified to
NSF/ANSI 61
Physical Properties:
Color .............................................................................................. Black
Purity ........................................................................................... > 85 %
C.A.S No. ................................................................................. 1313-13-9
Physical Form ............................................................ Granular particles
Moisture Content .................................................... < 0.5 % as shipped
Bulk Density ......................................................125 lbs/ft3 (2.00 g/cm³)
Mesh Size ......................................................(US-Unit) 8 x 20 / 20 x 40
Mesh Size .......................................... (mm) 0.85 – 2.36 / 0.425 – 0.85
Uniformity Coefficient ...................................................................... 1.77
Specific Gravity ................................................................................. 3.8
Conditions for Operation:
PH ....................................................................................................6 - 9
Bed Depth ......................................36 – 48 inches ( 900 – 1200 mm)
Service Flow Rate ...........................5 – 10 gpm / sq ft. ( 12 – 20 m/h)
Backwash Flow Rate ..........................22-30 gpm / Sq ft ( 50 - 72 m/h
Backwash Expansion ............................................................. 15 – 30 %
Freeboard................................................................. 70 % of bed depth
Oxidant Type .............................................................................Chlorine
Oxidant Form.............................................12.5 % Sodium Hypochlorite
Oxidant Contact Time ................................................. 10 – 30 seconds
Typical Oxidant Dosage ..................................................... 0.5 – 2 ppm
Regeneration.........................................Continuous w/oxidant addition
Removal Efficiency ................................................... 95 – 99 % for Iron
99 % for Manganese
Backwash Efficiency....................................... Every 24 hours ( typical )
Mang-Ox (for Sulfide, Iron and Manganese reduction)
Mang-Ox™ operates both as a classical filter working with an oxidant and as a catalytic media due to its
ability to accelerate the reaction between the oxidizing agent and any prevalent dissolved oxygen with
sulfide, iron and manganese present. No regenerates required, backwash only. Will not remove orange
iron, tannins or sulphur bacteria. 60 pound 1/2 cubic foot bag.
Pallet quantity - 30 bags per pallet
MANG-OX
1/2 Cubic Foot Bag (58 lbs)
MANG-OX-25-BOX
1/4 Cubic Foot Box
MANG-OX-50-BOX
1/2 Cubic Foot Box
Call Nelsen Toll-Free from Anywhere in the U.S. - 800.362.9686
All prices and products subject to change without notice. ©Nelsen Corporation
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