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Hint
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Answer
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Management of spoil heaps
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Nutrients
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Management of spoil heaps
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Topography
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Management of spoil heaps
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pH
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Management of spoil heaps
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Contamination
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Management of spoil heaps
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Toxic leachates
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Management of spoil heaps
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Heavy metals
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Management of spoil heaps
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Flammable wastes
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Methods to increase stability (3)
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Compaction, concrete rafts, vegetation
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Alkaline waste is from ...
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Steel
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Alkaline waste supports ...
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Rare plants
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Such as ...
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Cowslips
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Methods to reduce heavy metals
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Crushed lime filter to neutralise
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Methods to reduce heavy metals
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Covers to prevent particulate matter
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Methods to reduce contamination
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Phytoremediation
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Define
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Plants absorb heavy metals
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Methods to reduce contamination
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Bioremediation
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Define
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Bacteria digests petrochemicals
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Problems with flammable wastes
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Hydrocarbons can spontaneously combust
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SPECIALIST WASTES SAY YAY AGAIN
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YAY AGAIN
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Effects of asbestos
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Hazardous when it disintegrates and particulates become airborne
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Effects of asbestos
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Asbestosis
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Define
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Chronic lung disease
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Define (7 words)
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Scar tissue thickens alveoli, reducing lung capacity
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Effects of asbestos
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Specific lung cancer
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Controls of asbestos
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Double wrapped in heavy duty polythene
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Controls of asbestos
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Specialised landfill site
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Sources of cyanide (CN-)
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Paper manufacture
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Effects of cyanide
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Toxic enzyme inhibitor
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Controls of cyanide
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Incineration oxidises carbon and nitrogen
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Specialist waste method...
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Encapsulation
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Which waste
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Heavy metals and ILW
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Method PT1
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Mixed with cement slurry
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Method PT2
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Poured into impermeable container
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Specialist waste method...
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Vitrification
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Which waste
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HLW
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Method PT1
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Powdered and mixed with molten glass
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Method PT2
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Poured into steel container
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Method PT3
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Placed in ventilated concrete building
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