SLIDE 11 11
arko, Z. Wzorek , H. Kominko, A.K. Nowak, J. Kulczycka, A. Henclik,
- M. Smol, „Fertilisers production from ashes after sewage sludge combustion
- strategy towards sustainable development“, Environmental Research, 2017,
154(2017), s.171-180.
comparable P source comparable P source
Lower Ca content Lower Ca content
preferred particle size:84-99% below 0,25 mm preferred particle size:84-99% below 0,25 mm
micronutrie ntsFe, Cu, Zn, Mn, micronutrie ntsFe, Cu, Zn, Mn,
SEWAGE SLUDGE ASH VS PHOSPHATE ROCK
feedstock fmow replacement (renewable materials)
P2O5 CaO SiO2 Fe2O3 Al2O3 MgO Na2O K2O
0,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0 45,0 22,5 17,5 39,3 9,9 8,0 3,7 0,5 1,1 28,1 33,3 22,0 5,5 4,2 2,0 0,5 0,8
Polish SSA average
% wt