Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Harri Seppänen"'
Autor:
Harri Seppänen
Publikováno v:
Groundwater Updates ISBN: 9784431702832
All ground water aquifers are multiform biological systems. Taking into account the environmental requirements of different microbes it is possible to utilise certain microbes to solve many ground water quality problems. The most common problems are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5015bacf924369b6ca77dee7dcf162c6
https://doi.org/10.1007/978-4-431-68442-8_48
https://doi.org/10.1007/978-4-431-68442-8_48
Publikováno v:
Water Science and Technology. 20:75-86
The rapid changes and crises in the field of energy during the 1970s and 1980s have forced us to examine the use of energy more critically and to look for new ideas. Seasonal aquifer thermal energy storage (T < 100°C) on a large scale is one of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8594ea18500a1d036be44f5970e2011
https://doi.org/10.2166/wst.1988.0084
https://doi.org/10.2166/wst.1988.0084
Autor:
Harri Seppänen
Publikováno v:
Water Science and Technology. 20:95-100
Many living organisms affect the quality of the ground water. Precipitation and/or solubility of many inorganic compounds depends in some way or other on biological activity of living organisms. The role of bacteria and other organisms in these proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a07be0f2dd541a8c360eb9c590d9d97d
https://doi.org/10.2166/wst.1988.0086
https://doi.org/10.2166/wst.1988.0086
Autor:
Harri Seppänen
Publikováno v:
Water Science and Technology. 20:185-187
The role of certain types of bacteria is quite decisive in the formation of iron and manganese precipitates. Bacteria and other organisms participate in the precipitation of soluble iron and manganese in many different ways. The production of hydroge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b3a2ad5dbe3a63a425be5f939c6660f
https://doi.org/10.2166/wst.1988.0097
https://doi.org/10.2166/wst.1988.0097
Autor:
Heikki Wihuri, Harri Seppänen
Publikováno v:
Water Science and Technology. 20:ix-ix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f152675c9043fd9015e3aa35bb3c1bc
https://doi.org/10.2166/wst.1988.0076
https://doi.org/10.2166/wst.1988.0076
Publikováno v:
Water Science and Technology. 20:249-249
Precipitation of hydrous Fe and Mn oxides was investigated in 12 plants, constructed for purification of groundwater from excess Fe and Mn. The re-infiltration method was applied in 7 plants and the slow sand filtration in 5 plants (Hatva et al., 198
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29c436d99147871054105490ea9ef144
https://doi.org/10.2166/wst.1988.0110
https://doi.org/10.2166/wst.1988.0110