The Prevention Technologies Program
determines how some contaminated soils, treated soils, municipal
and industrial wastes may be safely reused on land to return
maximum value without creating further contamination issues. It is
integrated with Programs 1 and 2, and includes:
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Development of new techniques for
assessing and applying wastes to maximise value and avoid
subsequent contamination.
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Modification of contaminated soils and
wastes by coupling bioremediation and immobilisation so as to avoid
adverse effects
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Manufacture of slow-release nutrient-rich
artificial soils from municipal and industrial wastes
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Techniques for the large scale
application of wastes to land to enhance crop production
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Techniques for characterising waste
materials so they can be reused in various ways.
The Prevention Technologies Program
includes four subprograms:
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Technologies that enhance the nutrient
supply capacity of wastes but immobilize contaminants.
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Use of waste material as micronutrient
fertilizer
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Land application of contaminated
effluents
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Application of organic wastes for
re-vegetation of mined land and other contaminated sites.
These
subprograms address the broad questions of reusing solid wastes,
particularly investigating the innovative use of organic wastes in
agriculture for their nutrient content (nitrogen, phosphorus and
sulfur), reuse of mineral solid wastes as soil replacements (either
as an artificial soil in urban settings, or as a soil replacement
in industrial and mining situations), and the use of metallic
manufacturing wastes for their micronutrient value (e.g. copper,
zinc, manganese).