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Manganese greensand filters

Effluent concentrations of iron and manganese are limited to 2% of the influent concentration (98% removal) or 0.1 ppm iron, whichever is greater. [Pg.162]

Low concentrations of hydrogen sulfide can be treated with manganese greensand. However, the greensand will degrade at a rate proportional to the concentration of hydrogen sulfide. At some point in time, the greensand will need to be replaced due to loss of functionality. [Pg.162]

Waters that may be contaminated with high concentrations of turbidity may want to consider a top layer of anthracite to capture these solids. This protects the greensand and ensures that the greensand is free and clear to proceed with oxidation and filtration of metals. A 15 - 18-inch layer of anthracite is recommended. [Pg.162]

Rust a) up to 10 ppm iron removed by manganese greensand filter if pH is 6.7 or higher or... [Pg.55]

Where present in boiler MU water, both iron and manganese may present fouling and deposition problems in the pre-boiler section. These problems may extend to the boiler section, and therefore these metals must be removed at source. Typically, this is achieved by oxidation followed by filtering off the flocculated iron. (Process examples are aeration towers, contact with chlorine, pressure filters with BIRM media, manganese greensand filters, etc.)... [Pg.231]

Black Staining a) Manganese greensand or manganese zeolite-type catalyst-filter to limit of 6 ppm or 15 ppm, respectively (combined Fe and Mn), with pH not lower than 6.7 value... [Pg.55]

Removal of particulates, colloidal matter, iron and organics. Multimedia, manganese, greensand, diatomaceous earth, brim, or carbon filter. Caution carbon filters not recommended unless absolutely required for the removal of color and odor (as they provide a medium for microbial growth). [Pg.161]

Others recommend treatment to remove the compound. Hydrogen sulfide can be removed or reduced from RO feed water using some iron filters (such as manganese greensand and Filox, see Chapter 8.1.5) or a complicated combination of oxidation, coagulation and filtration, sulfite addition, and rechlorination.9... [Pg.131]

Iron/manganese - oxidation, greensand filtration, iron filter, aeration... [Pg.411]

See other pages where Manganese greensand filters is mentioned: [Pg.560]    [Pg.161]    [Pg.162]    [Pg.161]    [Pg.162]    [Pg.176]    [Pg.179]    [Pg.560]    [Pg.161]    [Pg.162]    [Pg.161]    [Pg.162]    [Pg.176]    [Pg.179]    [Pg.327]    [Pg.332]    [Pg.55]    [Pg.160]    [Pg.102]    [Pg.160]    [Pg.176]    [Pg.131]   
See also in sourсe #XX -- [ Pg.161 ]

See also in sourсe #XX -- [ Pg.161 ]

See also in sourсe #XX -- [ Pg.176 , Pg.177 , Pg.178 ]



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