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- Du, Juan, et al. Show all 9 Authors
- Bioresource technology 2019 v.274 pp. 73-82
- Symphytum officinale; biochar; cadmium; economic feasibility; environmental factors; hyperaccumulators; leaching; oxidation; phytoremediation; phytotoxicity; pyrolysis; temperature; toxic substances
- ... Symphytum officinale L., as a hyperaccumulator, was pyrolyzed into biochar at 350, 550, and 750 °C, respectively. PTEs could be enriched in biochars except Cd volatilized greatly at 750 °C. In order to evaluate the environmental acceptability of biochars, a series of sequential and single extractions and biochar oxidation procedures were performed for simulating different environmental conditions. ...
- Du, Juan, et al. Show all 10 Authors
- Bioresource technology 2018 v.249 pp. 487-493
- bioavailability; biochar; cadmium; ecotoxicology; heat treatment; heavy metals; lead; oxides; phytoremediation; pyrolysis; risk; risk assessment; temperature; zinc
- ... This study aimed to evaluate the chemical forms, behavior and environmental risk of heavy metal (HMs) Zn, Pb and Cd in phytoremediation residue (PMR) pyrolyzed at 350 °C, 550 °C and 750 °C, respectively. The behavior of HMs variation during the PMR pyrolysis process was analyzed and the potential HMs environmental risk of phytoremediation residue biochars (PMB) was assessed which was seldom invest ...