Journal article
Influence of feedstock and pyrolysis temperature of biochar amendments on transport of Escherichia coli in saturated and unsaturated soil
Environmental science & technology, v 46(15), pp 8097-8105
07 Aug 2012
PMID: 22738035
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The effects of biochar feedstock, pyrolysis temperature, and application rate (1 and 2%) on the transport of two Escherichia coli isolates through a fine sand soil under water-saturated and partially saturated conditions were investigated in column experiments. Biochars from two feedstocks (poultry litter and pine chips) and pyrolyzed at two temperatures (350 and 700 °C) were evaluated. Both biochars pyrolyzed at 700 °C resulted in significant reductions in E. coli transport, with greater reductions observed with the pine chip biochars. For the low temperature biochars, increased transport was observed for the poultry litter biochar whereas reduced transport was observed for the pine chip biochar. In general, the effect of biochar application on E. coli transport was more pronounced in the unsaturated soils and for the 2% application rates. Large differences were also observed between the two isolates indicating that bacterial surface properties play a role in how biochar affects E. coli transport.
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Details
- Title
- Influence of feedstock and pyrolysis temperature of biochar amendments on transport of Escherichia coli in saturated and unsaturated soil
- Creators
- Sergio M Abit - United States Department of AgricultureCarl H Bolster - Agricultural Research ServicePeng Cai - Huazhong Agricultural UniversitySharon L Walker - University of California, Riverside
- Publication Details
- Environmental science & technology, v 46(15), pp 8097-8105
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- College of Engineering
- Web of Science ID
- WOS:000307199800026
- Scopus ID
- 2-s2.0-84864654862
- Other Identifier
- 991021229898804721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Environmental
- Environmental Sciences