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Biosolid Colloid-Mediated Transport of Copper, Zinc, and Lead in Waste-Amended Soils

Department of Agronomy, Univ. of Kentucky, N-122K Ag. Science-North, Lexington, KY 40546-0091

View larger version (29K): [in a new window]   Fig. 1. Breakthrough curves for a conservative tracer (Cl–) and LSB, ADB, and PMB colloids eluted from intact (a) Maury, (b) Woolper, and (c) Bruno soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (29K): [in a new window]   Fig. 2. Breakthrough curves for Cu eluted in the absence (control) and presence of biosolid colloids from intact Maury soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (27K): [in a new window]   Fig. 3. Breakthrough curves for Cu eluted in the absence (control) and presence of biosolid colloids from intact Woolper soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (28K): [in a new window]   Fig. 4. Breakthrough curves for Cu eluted in the absence (control) and presence of biosolid colloids from intact Bruno soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (29K): [in a new window]   Fig. 5. Breakthrough curves for Zn eluted in the absence (control) and presence of biosolid colloids from intact Maury soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (29K): [in a new window]   Fig. 6. Breakthrough curves for Zn eluted in the absence (control) and presence of biosolid colloids from intact Woolper soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (28K): [in a new window]   Fig. 7. Breakthrough curves for Zn eluted in the absence (control) and presence of biosolid colloids from intact Bruno soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (30K): [in a new window]   Fig. 8. Breakthrough curves for Pb eluted in the absence (control) and presence of biosolid colloids from intact Maury soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (28K): [in a new window]   Fig. 9. Breakthrough curves for Pb eluted in the absence (control) and presence of biosolid colloids from intact Woolper soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).

View larger version (27K): [in a new window]   Fig. 10. Breakthrough curves for Pb eluted in the absence (control) and presence of biosolid colloids from intact Bruno soil monoliths (C, effluent concentration; Co, influent concentration; ADB, aerobically digested biosolid; LSB, lime-stabilized biosolid; PMB, poultry manure biosolid).