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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Kinetics of methane production and biodegradation of linear alkylbenzene sulfonate from laundry wastewater

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Author(s):
Motteran, Fabricio ; Braga, Juliana K. ; Silva, Edson L. ; Varesche, Maria Bernadete A.
Total Authors: 4
Document type: Journal article
Source: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING; v. 51, n. 14, p. 1288-1302, 2016.
Web of Science Citations: 6
Abstract

This study evaluates the kinetics of methane production and degradation of standard linear alkylbenzene sulfonate (LAS) (50 +/- 3.5mg/L) and LAS from laundry wastewater (85 +/- 2.1mg/L) in anaerobic batch reactors at 30 degrees C with different sources of inoculum. The inocula were obtained by auto-fermentation (AFM) and UASB reactors from wastewater treatment of poultry slaughterhouse (SGH), swine production (SWT) and wastewater treatment thermophilic of sugarcane industry (THR). The study was divided into three phases: synthetic substrate (Phase I), standard LAS (Phase II) and LAS from laundry wastewater (Phase III). For SGH, the highest values for cumulative methane productions (1,844.8 +/- 149 mu molPhase II), methane production rate (70.8 +/- 88 mu mol/hPhase II and 4.01 +/- 07 mu mol/hPhase III) were observed. The use of thermophilic biomass (THR) incubated at 30 degrees C was not favorable for methane production and LAS biodegradation, but the highest kinetic coefficient degradation (k(1)(app)) was obtained for LAS (0.33 +/- 0.3h) compared with mesophilic biomass (SGH and SWT) (0.13 +/- 0.02h). Therefore, both LAS sources influenced the kinetics of methane production and organic matter degradation. For SGH, inoculum obtained the highest LAS degradation. In the SGH inoculum sequenced by MiSeq-Illumina was identified genera (VadinCA02, Candidatus Cloacamonas, VadinHB04, PD-UASB-13) related to degrade toxic compounds. Therefore, it recommended the reactor mesophilic inoculum UASB (SGH) for the LAS degradation. (AU)

FAPESP's process: 13/19025-3 - INCREASING SCALE OF ANAEROBIC FLUIDIZED BED REACTOR FOR REMOVAL OF ANIONIC AND NONIONIC SURFACTANTS IN COMMERCIAL LAUNDRY WASTEWATER
Grantee:Fabricio Motteran
Support Opportunities: Scholarships in Brazil - Post-Doctoral