GREEN SAND- MANGANITE
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- Courier
- In detail
Manganite (Greensand) is a black filter medium used for removing soluble iron, manganese and hydrogen sulphide from well water supplies. It also has the capability of removing radium and arsenic. It is processed from the mineral zeolite ( a light weight granular core) with a manganese dioxide coating is deposited on the surface of the mineral grains. Each grain has a finite amount of manganese dioxide coating it. Unlike in-situated media, there is no need for any extensive pre-conditioning of the filter media to try to apply a coating. The filter media is ready to install in the filter and be regenerated.
The manganese dioxide coating acts as a catalyst in the oxidation reduction reaction of iron and manganese. The media can be used in two methods of operation: continuous regeneration (CR) and intermittent regeneration (IR). The CR method is recommended for predominantly iron bearing waters with or without the presence of manganese, and the IR method is recommended for use on ground waters in which manganese predominates. Additionally, manganese greensand is listed under ANSI/NSF Standard 61 for portable water treatment components.
Water Testing:
| COLOUR | DARK/BLACK BROWN |
| APPARENT DENSITY | 1.35g/ml |
| EFFECTIVE SIZE | 0.3 - 0.7 mm |
| UNIFORMITY COEFFICIENT | LESS THAN 1.7 |
Condition For Operation:
| pH | 6.5 - 8.5 |
| MAXIMUM PRESSURE DROP | 0.85 BAR |
| BACKWASH RATE | 30 EXPANTION (min) |
| SERVICE FLOW RATE | 5-12 CU.M/HR |
| MINIMUM BED DEPTH | 100CM |
| FREEBOARD | 30-50% |
| CAPACITY | 1.2 GM/L OF Fe |
| PACKING | 1 Cu. ft / Bag * |