PHOSPHOGYPSUM DUMP IN WILINKA FOSFORY 2 PHOSPHOGYPSUM Main - PowerPoint PPT Presentation

PHOSPHOGYPSUM DUMP IN WIŚLINKA

FOSFORY 2

PHOSPHOGYPSUM Main component: calcium sulfate dihydrate - formed in the reaction  of ground rock phosphate and sulfuric acid: Ca 5 (PO 4 ) 3 F + 5 H 2 SO 4 + 10 H 2 O → 3 H 3 PO 4 + HF + 5 [CaSO 4 · 2 H 2 O] Classification:   not cancirogenic or mutagenic substance according to classification in Polish Minister of Health ordinance of 24 July 2012  non-hazardous waste according to Polish Minister of Environment ordinance of 27 September 2001 World phosphogypsum production c.a.16 million tonnes per month  3

PHOSPHOGYPSUM DEPOSITION  Phosphogypsum have been deposited in Wiślinka dump since 1969  It was delivered to the site by barges in the quantity of c.a. 2500 tpd  300 meters wide buffer zone surrounding the dumpsite have been established. 4

BUFFER ZONE

PHOSPHOGYPSUM TRANSPORTATION 6

PHOSPHOGYPSUM TRANSPORTATION

STORAGE CLOSING 2008-2009

STORAGE CLOSING SCHEME 9

TECHNICAL RECLAMATION 10

TECHNICAL RECLAMATION 11

BIOLOGICAL RECLAMATION 12

BIOLOGICAL RECLAMATION 13 źródło: zumi.pl

BIOLOGICAL RECLAMATION 14

BIOLOGICAL RECLAMATION 15

BIOLOGICAL RECLAMATION - WILLOW

BIOLOGICAL RECLAMATION - WILLOW 17

BIOLOGICAL RECLAMATION - WILLOW

BIOLOGICAL RECLAMATION - WILLOW 19

STORAGE YARD MONITORING Monitoring of the quality of surface waters  surrounding the dump Analyses of level and chemistry of  groundwater Analyses of volume and composition of  leachate in the storage reservoir Analyses of stability and settlement level of  the dump

SURFACE WATERS M O N I T O R I N G

MONITORING OF MARTWA WISŁA WATERS NEAR PHOSPHOGYPSUM DUMP 2005-2013 Year pH P PO4 /[mg/l] 2005 8,10 2,09 2006 8,10 1,89 2007 8,28 1,28 2008 7,90 1,40 2009 8,30 1,56 2010 8,30 0,77 2011 8,15 0,84 2012 8,20 1,07 2013 8,10 0,73

TREND OF CHANGES OF PHOSPHATES CONCENTRATION IN MARTWA WISŁA WATERS NEAR DUMPSITE 2005 -2013 during closing in operation after closing Phosphates concentration on a mg P /dm3 basis 2,09 1,50 0,73 0,50 2005 2006 2007 2008 2009 2010 2011 2012 2013 Year

CURRENT STATUS OF THE STORAGE Dumpsite was closed on 31 december 2009 according to the  technical and biological reclamation project. Quantity of phosphogypsum stored – 16 million tonnes  – 26 h ectares , Dump area  Dump height – 41 meters  Embanked area – 34 h ect a res ,  Buffer zone – 300 m eters  Willow plantation area – 20 h ect a res  Reclamation cover area – 35 h ect a res 

PLANNED PHOSPHORUS RECOVERY

COLLECTION OF LEACHATE Collection of 24 000 m 3 per year of leachate from the storage reservoir is planned

RECOVERY OF PHOSPHORUS AND ITS USE FOR FERTILIZER PRODUCTION Utilization of phosphorus contained in leachate for the production of fertilizers Reduction of water consumption by making use of water contained in dump leachate

FOSFORY’S FERTILIZER PRODUCTION

LEACHATE RECOVERY Current production Production using leachate

ECOLOGICAL EFFECTS Recovery of c.a. 160 tpy of phosphorus (P) from the dump site Reduction of phosphates level in drainage ditches and storage reservoir Reduction of phosphoric acid consumption Reduction of deep water consumption 30

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