Green Sand
Manganese Greensand is formulated from a glauconite greensand which is capable of reducing iron, manganese and hydrogen sulfide from water through oxidation and filtration.
Manganese Greensand is formulated from a glauconite greensand which is capable of reducing iron, manganese and hydrogen sulfide from water through oxidation and filtration.
Soluble iron and manganese are oxidized and precipitated by contact with higher oxides of manganese on the greensand granules.
The hydrogen sulfide is reduced by oxidation to an insoluble sulfur precipitate. Precipitates are then filtered and removed by backwashing.
When the oxidizing capacity power of the Manganese Greensand bed is exhausted, the bed has to be regenerated with a
weak potassium permanganate (KMnO4) solution thus restoring the oxidizing capacity of the bed.
Technical Characteristics
- Colour Brown, shiny surface
- Origin China
- Fe Max 20%
| Application | Features |
|---|---|
| Deferrization | Mechanical strength, steady chemical property, long life cycle and stable quality |
| Demanganization of drinking water | Large specific surface area, good adsorption |
| Siphon filters in water plant and filter tanks | High chemical activity, good oxidation and catalysis effect |
| Waste water treatment | Good density, even particles, small wastage rate during back washing |
| Water pretreatment | Outstanding effect on deironing |
| Advanced treatment | demanganization |
| DEironing of sewage whose iron content is less than 20mg/L. | Lixiviat is harmless |