Fig. 3. Dissolved organic carbon (DOC) (a), Ca (b), and Zn (c) measured in solution in suspensions containing soil K1 and different additives. 
, NaOH; 
, Ca(OH)2; 
, cyclonic ashes; 
, zeolite A.
Fig. 3. Dissolved organic carbon (DOC) (a), Ca (b), and Zn (c) measured in solution in suspensions containing soil K1 and different additives. , NaOH; , Ca(OH)2; , cyclonic ashes; , zeolite A.