publication . Article . 2012

Iron in the Middle Devonian aquifer system and its removal at Võru County water treatment plants, Estonia

Mariina Hiiob; Enn Karro;
Open Access English
  • Published: 01 Aug 2012 Journal: Estonian Journal of Earth Sciences, volume 61, issue 3, pages 181-190 (issn: 1736-4728, eissn: 1736-7557, Copyright policy)
  • Publisher: Estonian Academy Publishers
Abstract
Groundwater abstracted from the Middle Devonian aquifer system is the main source of drinking water in South Estonia. High iron and manganese concentrations in groundwater are the greatest problems in this region. The total iron concentrations up to 16 mg L -1 are mainly caused by a high Fe 2+ content in water, pointing to the dominance of reducing conditions in the aquifer system. A pilot study was carried out to estimate the effectiveness of 20 groundwater purification plants with eight different water treatment systems (aeration combined with Manganese Greensand, Birm, Nevtraco, Hydrolit-Mn, Magno-Dol and quartz sand filters) in Voru County. The results demon...
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Subjects
free text keywords: iron, manganese, water treatment, groundwater, Middle Devonian aquifer system., General Earth and Planetary Sciences, Water Science and Technology, lcsh:Geology, lcsh:QE1-996.5, Mining engineering, Geology, Devonian, Greensand, chemistry.chemical_element, chemistry, Aquifer, geography.geographical_feature_category, geography, Environmental chemistry, Aeration, Quartz
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