Influence of phosphate fertilizers on Cd solubility in soil

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Wasp, Air, and Soil Pollution; ()

DOI:https://doi.org/10.1007/BF00284737· OSTI ID:5984056

Levi-Minzi, R; Petruzzelli, G

An investigation was made of the influence of monoammonium phosphate (MAP) and diammonium phosphate (DAP) on the adsorption process of Cd by two typic soils. The phosphate induced variations in the pH values of soil-Cd suspensions, drastically influenced the solubility of the heavy metal in the two soils. MAP decreased the amount adsorbed while DAP increased the quantity fixed by the soil. The effect was particularly remarkable in the soil with low content of organic matter (Lamporecchio soil) where the addition of DAP caused the precipitation of the heavy metal. In the organic soil (Orentano soil) the effect of phosphate was less evident because of the high buffering capacity of this soil, rich in colloidal fractions. 11 references, 3 figures, 3 tables.

• Research Organization: Univ. of Pisa, Italy
• OSTI ID: 5984056
• Journal Information: Wasp, Air, and Soil Pollution; (), Journal Name: Wasp, Air, and Soil Pollution; () Vol. 23:4
• Country of Publication: United States
• Language: English

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORPTION ISOTHERMS
AMMONIUM COMPOUNDS
AMMONIUM PHOSPHATES
CADMIUM
CHEMISTRY
ELEMENTS
ENVIRONMENTAL EFFECTS
ENVIRONMENTAL TRANSPORT
FERTILIZERS
ISOTHERM
MASS TRANSFER
METALS
OXYGEN COMPOUNDS
PH VALUE
PHOSPHATES
PHOSPHORUS COMPOUNDS
SOIL CHEMISTRY
SOILS
SOLUBILITY
SORPTION
VARIATIONS