The use of biochar towards a circular economy- optimisation of chemically activated biochar for aqueous phosphate recovery: PRESENTATION ONLY
McFadden, M.1, Zhang, X.1, Fletcher, A.1, Davidson, C.1 and Kerr, S.2, 1The University of Strathclyde, UK, 2Sustainable Thinking Scotland CIC, UK
(Free)
• Phosphate rock estimated to run out within 50-100 years [1] Agriculture Food waste Industrial waste
• Our Phosphorous Future Report 50:50:50- 50% reduction in global P pollution and 50% increase in recycling of P lost in residues and wastes by 2050
There is no food security without phosphorous security
Phosphate Pollution Causes: High levels of inorganic nutrients such as phosphate and nitrate. Characterised by:
• Algal blooms
• Oxygen Depletion Pollution Sources [2]:
• Municipal Wastewater
• Industrial Wastewater
• Run off from agricultural land ( chemical fertilisers) Remediation :
• Sorption processes considered the most desirable