Varying effect of biochar on Cd, Pb and As mobility in a multi-metal contaminated paddy soil

• Published in: Chemosphere (Oxford) Vol. 152; pp. 196 - 206
• Main Authors: Yin, Daixia, Wang, Xin, Chen, Can, Peng, Bo, Tan, Changyin, Li, Hailong
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.06.2016
• Subjects: acid deposition; Acid leaching; Acid Rain - analysis; acidification; arsenic; Arsenic - analysis; Arsenic - chemistry; bioavailability; Biochar; cadmium; Cadmium - analysis; Cadmium - chemistry; calcium chloride; Charcoal - chemistry; China; durability; Eichhornia crassipes; leachates; leaching; lead; Lead - analysis; Lead - chemistry; minerals; Mobility; Multi-metal contamination; Oryza - growth & development; paddy soils; potassium dihydrogen phosphate; rain; rice straw; risk; Soil - chemistry; Soil Pollutants - analysis; Solubility; SPLP; toxicity; Mobility; Acid leaching; Biochar; Multi-metal contamination; SPLP

Cd, Pb and As stand as the most prominent contaminants prevailing in Chinese soils. In the present study, biochars derived from water hyacinth (BCW) and rice straw (BCR) were investigated regarding their applicability and durability in soil Cd, Pb, and As immobilization under acid precipitation. Tot...