Study of the remediation effects of passivation materials on Pb-contaminated soil
Autor: | Shu-Xuan Liang, Yu-Ru Li, Xiao-Can Xi |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Passivation
Environmental remediation Chemistry 020502 materials 02 engineering and technology General Chemistry 010501 environmental sciences phosphate fertilizer Phosphate fertilizer 01 natural sciences complex mixtures blast furnace slag 0205 materials engineering passivation rate Ground granulated blast-furnace slag Environmental chemistry pb-contaminated soil biological activity coefficient Pb contaminated soil Materials Chemistry QD1-999 0105 earth and related environmental sciences |
Zdroj: | Open Chemistry, Vol 18, Iss 1, Pp 911-917 (2020) |
ISSN: | 2391-5420 |
Popis: | The passivation effects of blast furnace slag, fly ash, corncob biochar, and phosphate fertilizer in Pb-contaminated soil was evaluated against the soil pH, available Pb content, Pb fractions, and bioactivity coefficient. Blast furnace slag and fly ash could increase soil pH, while corncob biochar and phosphate fertilizers lowered soil pH. The available Pb content in the blast furnace slag and phosphate fertilizer treatment groups was significantly lower than in other treatments. Also, blast furnace slag and phosphate fertilizer could significantly convert nonresidual Pb into residual Pb. Combined with the environmental impact after application and cost of the material, it is recommended that blast furnace slag can be used as a passivation agent for low-concentration Pb-contaminated soil. |
Databáze: | OpenAIRE |
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