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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.)

Rapid and easy quantification of elemental sulphur in aqueous samples from biological reactors: the turbidimetric method revisited

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Author(s):
Gouvea De Godoi, Leandro Augusto [1] ; Solcia Guerrero, Renata De Bello [1] ; Diniz Dos Santos, Carla Eloisa [1] ; Foresti, Eugenio [1] ; Zaiat, Marcelo [1] ; Rissato Zamariolli Damianovic, Marcia Helena [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo EESC USP, Sao Carlos Sch Engn, Ctr Res Dev & Innovat Environm Engn, Lab Biol Proc, Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Review article
Source: INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY; v. 99, n. 9, p. 809-823, JUL 15 2019.
Web of Science Citations: 0
Abstract

Recent developments in wastewater treatment have led to a renewed interest to obtain elemental sulphur (S degrees) as a by-product from bioreactors. However, practical studies are limited by the gap of adequate analytical techniques for its determination. This paper provides a statistical study and matrix effect evaluation of an adapted spectrophotometric method for routine S degrees analyses in aqueous samples, based on a methodology previously described by Hart (1961). Four complex matrices were tested: domestic sewage and effluent samples from three different bioreactors. Tested performance criteria included linearity, matrix effect, limit of detection and quantification and S degrees recovery. Results were linear (R-2 = 0.99994) in the studied range (5 to 100 mg S degrees L-1) and no matrix effect was observed. The accuracy was based on recovery values that varied from 100% to 106%. The colloidal S degrees separation and extraction protocol was also considered suitable for aqueous samples, reaching more than 99.0% of S degrees recovery. (AU)

FAPESP's process: 15/18976-0 - WASTEWATER POST-TREATMENT FOR NITROGEN COMPOUNDS REMOVAL USING A HORIZONTAL ANOXIC-AEROBIC REACTOR FEEDING WITH BIOGAS AND AIR
Grantee:Renata de Bello Solcia Guerrero
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants