A Comparative Study on Chemical Speciation of Trace Metals as a Function of Solution pH: A Multivariate Analysis and Simulation Approach

Communications in Soil Science and Plant Analysis, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: Jan. 14, 2025

Biogeochemical activity of trace elements in the environment significantly relies on their chemical speciation. Solution pH influences speciation and biogeochemical soil-plant continuum. The current study was conducted to simulate influence solution fractions 11 (arsenic, lead, zinc, copper, chromium, cadmium, mercury, nickel, strontium, antimony, selenium) using Visual Minteq, a equilibrium model used for calculation metal speciation, sorption etc. Results delineated that pH-mediated variations differed with type. results revealed dominance element species at acidic (1–6), neutral (7.0), alkaline (8–14) pH. Divalent (zinc, lead) were dominant However, mercury has narrow range (1–3), while strontium wider (1–13). Nitrate, sulfate, phosphate also occurred <8. >8, existed hydroxide (OH) fractions. In case arsenic (arsenite As3+ arsenate As5+), selenium (selenite Se4+ selenate Se6+), antimony (antimonite Sb3+ antimonate Sb5+), get oxidized increasing Multivariate analysis various metals as function Moreover, Principal Component Analysis verified linear relation affects phytoavailable fraction growth culture associated health hazards through transfer.

Language: Английский

Application of Biochar in the Removal of Contaminants from Soil and Water

Published: Jan. 1, 2025

Language: Английский