TY - JOUR
T1 - Effects of hydrothermal liquefaction on the fate of bioactive contaminants in manure and algal feedstocks
AU - Pham, Mai
AU - Schideman, Lance
AU - Sharma, Brajendra K.
AU - Zhang, Yuanhui
AU - Chen, Wan Ting
N1 - Funding Information:
This work was funded in part by Illinois Sustainable and Technology Center (ISTC) , a division of the Prairie Research Institute at the University of Illinois at Urbana Champaign (UIUC) under Grant HWR12226 . We would like to thank Dr. Helen Nguyen and Dr. Julie Zilles at the department of Civil and Environmental Engineering, UIUC for allowing us to use some facilities in their labs. We thank Nanxi Lu and Heather E. Goetsch from the Civil and Environmental Engineering Department at UIUC for their assistance with some of the transformation experiments. We also thank Zhichao Wang, Jixiang Zhang, and Peng Zhang from the Agricultural and Biological Engineering Department at UIUC for their assistance with some of hydrothermal liquefaction experiments. Finally, we thank Wei Zhang, Xiaolin Li, and Yonghong Zhang at the ISTC for technical assistance with several HPLC analyses.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2013/12
Y1 - 2013/12
N2 - This study investigated the effects of hydrothermal liquefaction (HTL) on the fate of bioactive compounds (BACs) often present with wet biosolids from wastewater, manure, or algae. Tracking radiolabeled 14C for two BACs showed that 60-79% of the carbon was transferred to the HTL raw oil product, and most of the rest was found in the aqueous product. In the presence of both swine manure and Spirulina biomass feedstocks, HTL provided essentially complete removal of three BACs when operated at 300°C for ≥30min. Experiments with both natural transformation and high-efficiency transformation showed that HTL provided complete deactivation of antibiotic resistant genes for all tested HTL conditions (250-300°C, 15-60min reaction time). Thus, incorporating HTL into wastewater treatment systems can simultaneously produce valuable bio-crude oil, provide effective removal of BACs and disrupt the natural pathways for antibiotic resistant gene transfer from manure and wastewater biosolids to the environment.
AB - This study investigated the effects of hydrothermal liquefaction (HTL) on the fate of bioactive compounds (BACs) often present with wet biosolids from wastewater, manure, or algae. Tracking radiolabeled 14C for two BACs showed that 60-79% of the carbon was transferred to the HTL raw oil product, and most of the rest was found in the aqueous product. In the presence of both swine manure and Spirulina biomass feedstocks, HTL provided essentially complete removal of three BACs when operated at 300°C for ≥30min. Experiments with both natural transformation and high-efficiency transformation showed that HTL provided complete deactivation of antibiotic resistant genes for all tested HTL conditions (250-300°C, 15-60min reaction time). Thus, incorporating HTL into wastewater treatment systems can simultaneously produce valuable bio-crude oil, provide effective removal of BACs and disrupt the natural pathways for antibiotic resistant gene transfer from manure and wastewater biosolids to the environment.
KW - Algae
KW - Antibiotic resistance
KW - Bioactive contaminants
KW - Hydrothermal liquefaction
KW - Manure
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U2 - 10.1016/j.biortech.2013.08.131
DO - 10.1016/j.biortech.2013.08.131
M3 - Article
C2 - 24099971
AN - SCOPUS:84885079982
SN - 0960-8524
VL - 149
SP - 126
EP - 135
JO - Bioresource Technology
JF - Bioresource Technology
ER -