Method for peat mining

Details Method for peat mining Method for peat mining

E - Fixed Constructions

21

C

262/1

E21C 49/00 (2006.01)

Patent

CA 1222531

P 593 ABSTRACT At peat mining peat is suspended in water to a slurry or suspension with is led to a dewatering plant. From the dewatering plant (13) return water is returned and used to heat the raw peat in connection with the mining area. The return water can be spread onto the moss over an area (11) at a suitable distance from the mining pit (2), thereby at least partially displacing the moss water and providing water for making a slurry, the moss water preferably being drained to the mining pit. The return water contains also a separated fine parts fraction of the peat as well as peat ash and/or other chemicals with break down the colloidal bonds of the peat and which preferably also raise the pH-value of the water which is drained into the mining pit together with said fine parts fraction.

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