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PHOSPHOGYPSUM DUMP IN WILINKA FOSFORY 2 PHOSPHOGYPSUM Main - - PowerPoint PPT Presentation
PHOSPHOGYPSUM DUMP IN WILINKA FOSFORY 2 PHOSPHOGYPSUM Main - - PowerPoint PPT Presentation
PHOSPHOGYPSUM DUMP IN WILINKA 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
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PHOSPHOGYPSUM
- Main component: calcium sulfate dihydrate - formed in the reaction
- f ground rock phosphate and sulfuric acid:
Ca5(PO4)3F + 5 H2SO4 + 10 H2O → 3 H3PO4 + HF + 5 [CaSO4 · 2 H2O]
- 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
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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.
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BUFFER ZONE
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PHOSPHOGYPSUM TRANSPORTATION
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PHOSPHOGYPSUM TRANSPORTATION
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STORAGE CLOSING 2008-2009
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STORAGE CLOSING SCHEME
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TECHNICAL RECLAMATION
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TECHNICAL RECLAMATION
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BIOLOGICAL RECLAMATION
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BIOLOGICAL RECLAMATION
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BIOLOGICAL RECLAMATION
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BIOLOGICAL RECLAMATION
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BIOLOGICAL RECLAMATION - WILLOW
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BIOLOGICAL RECLAMATION - WILLOW
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BIOLOGICAL RECLAMATION - WILLOW
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BIOLOGICAL RECLAMATION - WILLOW
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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
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SURFACE WATERS M O N I T O R I N G
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MONITORING OF MARTWA WISŁA WATERS NEAR PHOSPHOGYPSUM DUMP 2005-2013
Year pH PPO4/[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
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TREND OF CHANGES OF PHOSPHATES CONCENTRATION IN MARTWA WISŁA WATERS NEAR DUMPSITE 2005-2013
2,09 0,73 0,50 1,50
2005 2006 2007 2008 2009 2010 2011 2012 2013
Year Phosphates concentration on a mg P /dm3 basis in operation during closing after closing
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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
- Dump area
– 26 hectares,
- Dump height
– 41 meters
- Embanked area
– 34 hectares,
- Buffer zone
– 300 meters
- Willow plantation area
– 20 hectares
- Reclamation cover area
– 35 hectares
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PLANNED PHOSPHORUS RECOVERY
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COLLECTION OF LEACHATE
Collection of 24 000 m3 per year of leachate from the storage reservoir is planned
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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
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FOSFORY’S FERTILIZER PRODUCTION
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LEACHATE RECOVERY
Current production Production using leachate
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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
ECOLOGICAL EFFECTS
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