Premium
Overland Flow for Iron Removal From Potable Water
Author(s) -
Zirschky John,
Carlson Liisa
Publication year - 1984
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1984.tb05266.x
Subject(s) - ferrous , manganese , surface runoff , environmental science , ferric , potable water , environmental engineering , water treatment , water quality , flow (mathematics) , wastewater , sewage treatment , groundwater , chemistry , geology , inorganic chemistry , geotechnical engineering , ecology , geometry , mathematics , biology , organic chemistry
Overland flow, an effective wastewater treatment process, can also be used for potable water treatment. Many groundwaters contain excessive amounts of ferrous iron that result in a water of poor aesthetic quality. The natural reaeration that occurs during overland flow oxidizes ferrous iron to the more insoluble ferric form. The resulting precipitate then settles on the slope. An existing overland‐flow treatment system in Salo, Finland, achieves 97 percent iron and manganese removal. A brief description of that treatment system is presented.