BTEX and ethanol removal in horizontal-flow anaerobic immobilized biomass reactor, under denitrifying condition

Gusmao, VR; Martins, TH; Chinalia, FA; Sakamoto, IK; Thiemann, OH; Varesche, MBA

HERO ID

1960400

Reference Type

Journal Article

Year

2006

Language

English

HERO ID 1960400
In Press No
Year 2006
Title BTEX and ethanol removal in horizontal-flow anaerobic immobilized biomass reactor, under denitrifying condition
Authors Gusmao, VR; Martins, TH; Chinalia, FA; Sakamoto, IK; Thiemann, OH; Varesche, MBA
Journal Process Biochemistry
Volume 41
Issue 6
Page Numbers 1391-1400
Abstract A denitrifying consortium was used as inoculum to form a biofilm in horizontal-flow anaerobic immobilized biomass reactor. The reactor was fed with hydrocarbons, separately (benzene at 13.8, 15.4 and 26.5 mg; toluene 30.8 mg/L; ethylbenzene 33.3 mg/L; xylene 32.1 mg/L), and also with a benzene, toluene, ethylbenzene and xylene (BTEX) mix solution of approximately 5.0 ing/L. of each hydrocarbon. The hydrocarbons were dissolved in a solution containing ethanol. Organic matter removal efficiencies were of 95% with benzene and toluene amendments and about 76% with ethylbenzene, m-xylene and the BTEX-mix amendments. Hydrocarbons removal efficiencies were of 99% at an initial concentration of benzene 26.5 mg/L, toluene 30.8 mg/L, m-xylene 32.1 mg, ethylbenzene 33.3 mg/L and BTEX 26.5 mg/L. Microbial diversity assessed by a small portion of 16S DNA suggested the predominance of species related to the phylotypes Pseudomonas, Paracoccus and Bacteroides. This system showed to be an alternative to treating wastewater contaminated with nitrate, ethanol and hydrocarbons. (c) 2006 Elsevier Ltd. All rights reserved.
Doi 10.1016/j.procbio.2006.02.001
Wosid WOS:000237610600026
Url https://www.scopus.com/inward/record.uri?eid=2-s2.0-33646584220&doi=10.1016%2fj.procbio.2006.02.001&partnerID=40&md5=3a3c8fe22a4a801fc682cf5e6da071aa
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword BTEX; ethanol; denitrifying bacteria; HAIB reactor; Paracoccus; Pseudomonas