(19)
(11) EP 3 331 620 A1

(12)

(43) Date of publication:
13.06.2018 Bulletin 2018/24

(21) Application number: 17778735.5

(22) Date of filing: 04.04.2017
(51) International Patent Classification (IPC): 
A62D 3/02(2007.01)
C05F 3/00(2006.01)
C09K 17/40(2006.01)
C02F 11/16(2006.01)
 B09B 3/00(2006.01)
C05F 17/00(2006.01)
B09C 1/10(2006.01)
(86) International application number:
PCT/FI2017/050238
(87) International publication number:
WO 2017/174873 (12.10.2017 Gazette 2017/41)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 04.04.2016 FI 20165289

(71) Applicant: Meehanite Technology Oy
33800 Tampere (FI)

(72) Inventors:
  • TAPOLA, Markku
    33800 Tampere (FI)
  • TAPOLA, Sara
    33800 Tampere (FI)

(74) Representative: Berggren Oy, Tampere 
Visiokatu 1
33720 Tampere
33720 Tampere (FI)

   


(54) A METHOD FOR TREATING SURPLUS FOUNDRY SAND BY COMPOSTING AND A COMPOST