TY - JOUR
T1 - Investigation of cracking and water availability of soil-biochar composite synthesized from invasive weed water hyacinth
AU - Bordoloi, S.
AU - Garg, A.
AU - Sreedeep, S.
AU - Lin, P.
AU - Mei, G.
PY - 2018
Y1 - 2018
N2 - Water hyacinth (WH), is one of the world's most intractable and invasive weed species. Recent studies explored the efficacy of this species as a biochar (BC) in improving soil fertility and metal adsorption. However, the soil water retention (SWR) property and crack potential of soil-WH biochar composite has still not been studied. The major objective of this study is to investigate the SWR property and corresponding crack intensity factor (CIF) for compacted soil-WH BC composites. Soil-WH BC composites at five percentages (0, 2, 5, 10 and 15) was compacted and soil parameters such as suction (ψ), water content and CIF were simultaneously monitored for 63 days (including 9 drying-wetting cycles). Results showed that soil-WH BC composite at all percentages retains more water (max. 19% and min. 6.53%) than bare soil at both saturated and drought conditions. Gradual inclusion of WH BC to soil decreases the CIF potential from 7% to 2.8%.
AB - Water hyacinth (WH), is one of the world's most intractable and invasive weed species. Recent studies explored the efficacy of this species as a biochar (BC) in improving soil fertility and metal adsorption. However, the soil water retention (SWR) property and crack potential of soil-WH biochar composite has still not been studied. The major objective of this study is to investigate the SWR property and corresponding crack intensity factor (CIF) for compacted soil-WH BC composites. Soil-WH BC composites at five percentages (0, 2, 5, 10 and 15) was compacted and soil parameters such as suction (ψ), water content and CIF were simultaneously monitored for 63 days (including 9 drying-wetting cycles). Results showed that soil-WH BC composite at all percentages retains more water (max. 19% and min. 6.53%) than bare soil at both saturated and drought conditions. Gradual inclusion of WH BC to soil decreases the CIF potential from 7% to 2.8%.
KW - water hyacinth
KW - biochar
KW - crack intensity factor
KW - water retention
KW - suction
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85047071215&partnerID=MN8TOARS
UR - https://www.scopus.com/pages/publications/85047071215
U2 - 10.1016/j.biortech.2018.05.011
DO - 10.1016/j.biortech.2018.05.011
M3 - Article
SN - 0960-8524
VL - 263
SP - 665
EP - 677
JO - Bioresource Technology
JF - Bioresource Technology
ER -