Suo - Mires and peat vol. 40 no. 5 | 1989
Soiden hyödyntämisen historiasta Euroopassa, erityisesti Saksassa.
English title: History of the utilization of peatlands in Europe with special reference to Germany.
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Tekijä
From pre-christian times peatland-use and attitudes towards peatlands in Germany have changed to a great extent. Agricultural use of the inhospitable peat bog terrain only developed after the fertile soil regions had been conquered in the so-called struggle for food production. Use for fuel production never reached the amount of peatland used for agriculture, and with the use of peat as a horticultural ameliorator at the beginning of this century, only a small portion of the peat area has been touched and is not larger than the area under nature conservation. With these changes, attitudes about the associated environmental impact have shifted enormously at the same time.
Key words: Agriculture, historical review, horticulture, mire utilization
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Lüttig,
Chair of Applied Geology, University of Erlangen-Nurnberg, Schloßgarten 5, D-8520 Erlangen, BRD
Sähköposti:
ei.tietoa@nn.oo
Öljyn poisto turvesuodattimella.
English title: Oil removal using peat filters.
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The use of peat for the treatment of oil-in-water emulsions is gaining attention as a simple, economical means of environmental protection. The horticultural peat produced by Premier Peat Company Limited was assessed for its potential in removing oil from five representative oil-in-water emulsions of different stabilities. The emulsions were passed through a 300 mm peat filter bed at a flow rate of 12, 48 and 300 ml/min. Each test was conducted for 8 hours of continuous filter run. The results indicated that an average oil removal efficiency ranging from 34 to 99% can be obtained in a peat filter depending upon the flow rate and the type of oil-in-water emulsions.
Key words: Adsorption, filtration, oil-in-water emulsion, oil pollution, peat
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Viraraghavan,
Faculty of Engineering, University of Regina, Regina, Saskatchewan, Canada, S4S OA2
Sähköposti:
ei.tietoa@nn.oo
- Mathavan, Sähköposti: ei.tietoa@nn.oo
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