Periodically operated bioreactors for the treatment of soils and leachates
Abstract
Limited contaminant bioavailability at concentrations above the required cleanup level reduces biodegradation rate and renders solid-phase bioremediation more cost effective than complete treatment in a bioslurry reactor. Slurrying followed by solid-phase bioremediation combines the advantages and minimizes the weaknesses of each treatment method when used alone. Periodic aeration during solid-phase bioremediation has the potential to lower treatment costs relative to continuous aeration. A biological treatment system consisting of slurrying followed by periodic aeration in solid-phase sequencing batch reactors (SP-SBRs) was developed and tested in the laboratory using a silty loam contaminated predominantly with the plasticizer bis(2-ethylhexyl)phthalate (BEHP) or (DEHP) and a silty clay loam contaminated with diesel fuel. The first experiment evaluated the effect of water content and mixing time during slurrying on subsequent treatment in continuously aerated solid-phase bioreactors. The second experiment compared treatment of slurried soil in SP-SBRs using three different periodic aeration strategies with continuous aeration.
- Authors:
-
- Univ. of Notre Dame, IN (United States). Center for Bioventing and Pollution Control
- Publication Date:
- OSTI Identifier:
- 479369
- Report Number(s):
- CONF-950483-
ISBN 1-57477-010-1; TRN: 97:010490
- Resource Type:
- Conference
- Resource Relation:
- Conference: 3. international in situ and on-site bioreclamation symposium, San Diego, CA (United States), 24-27 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of Biological unit processes for hazardous waste treatment; Hinchee, R.E.; Skeen, R.S. [eds.] [Battelle Memorial Inst., Columbus, OH (United States)]; Sayles, G.D. [ed.]; PB: 358 p.; Bioremediation, Volume 3(9)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; 54 ENVIRONMENTAL SCIENCES; BIOREACTORS; BIODEGRADATION; REMEDIAL ACTION; PHTHALATES; SOILS; LEACHATES; SLURRIES; TECHNOLOGY ASSESSMENT; DIESEL FUELS; HYDROCARBONS
Citation Formats
Irvine, R L, and Cassidy, D P. Periodically operated bioreactors for the treatment of soils and leachates. United States: N. p., 1995.
Web.
Irvine, R L, & Cassidy, D P. Periodically operated bioreactors for the treatment of soils and leachates. United States.
Irvine, R L, and Cassidy, D P. 1995.
"Periodically operated bioreactors for the treatment of soils and leachates". United States.
@article{osti_479369,
title = {Periodically operated bioreactors for the treatment of soils and leachates},
author = {Irvine, R L and Cassidy, D P},
abstractNote = {Limited contaminant bioavailability at concentrations above the required cleanup level reduces biodegradation rate and renders solid-phase bioremediation more cost effective than complete treatment in a bioslurry reactor. Slurrying followed by solid-phase bioremediation combines the advantages and minimizes the weaknesses of each treatment method when used alone. Periodic aeration during solid-phase bioremediation has the potential to lower treatment costs relative to continuous aeration. A biological treatment system consisting of slurrying followed by periodic aeration in solid-phase sequencing batch reactors (SP-SBRs) was developed and tested in the laboratory using a silty loam contaminated predominantly with the plasticizer bis(2-ethylhexyl)phthalate (BEHP) or (DEHP) and a silty clay loam contaminated with diesel fuel. The first experiment evaluated the effect of water content and mixing time during slurrying on subsequent treatment in continuously aerated solid-phase bioreactors. The second experiment compared treatment of slurried soil in SP-SBRs using three different periodic aeration strategies with continuous aeration.},
doi = {},
url = {https://www.osti.gov/biblio/479369},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 1995},
month = {Sun Dec 31 00:00:00 EST 1995}
}