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Assessing the influence of biochar in controlling diffuse pollution from arable soils

Assessing the influence of biochar in controlling diffuse pollution from arable soils. Ruben Sakrabani 1 & Stephen Allen 2 1 National Soil Resources Institute, Cranfield University r.sakrabani@cranfield.ac.uk 2 Queen’s University Belfast s.allen@qub.ac.uk

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Assessing the influence of biochar in controlling diffuse pollution from arable soils

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  1. Assessing the influence of biochar in controlling diffuse pollution from arable soils Ruben Sakrabani1 & Stephen Allen2 1National Soil Resources Institute, Cranfield University r.sakrabani@cranfield.ac.uk 2Queen’s University Belfast s.allen@qub.ac.uk Project Champion: Allen Wilson (Chem-Vite Ltd.)

  2. Background to project ENERGY/BIOMASS Bio-oil + syn-gas ££££ FORESTRY WASTE • ↑ in OM production • 4 – 5 M ha land in E&W 5 M t forestry residue 3 M t green waste FARMERS 6-7 M t industrial ‘wastes’ 90 M t farm manures 18 M t energy crops WATER UTILITY 3-4 M t biosolids Cost Benefit Analysis Slow release fertiliser FARMERS/AGRI FARMERS/AGRI, REGULATORS

  3. Why should this project be funded ? • Reduction in diffuse pollution – currently 60% NO3- enters water • Adding biochar ↓ NO3- 2.5 X in leachate – saving of cleanup cost • Cleanup cost of eutrophication - £75-£114 M/year • Adding biochar ↓ NH4+ 4 X in leachate – more potential reduction in NO3- • Slow release fertiliser - reduced reliance on manufactured fertilisers - approximately £300/tonne - increase in wheat price • Policy drives – Water Framework Directive, Nitrates directive (NVZs), CSF

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