| Full text | |
| Author(s): |
Franciele Pereira Camargo
[1]
;
Arnaldo Sarti
;
Alberto Camilo Alécio
;
Carolina Aparecida Sabatini
[4]
;
Maria Angela Tallarico Adorno
[5]
;
Iolanda Cristina Silveira Duarte
[6]
;
Maria Bernadete Amâncio Varesche
[7]
Total Authors: 7
|
| Affiliation: | [1] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Hidráulica e Saneamento - Brasil
[4] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Hidráulica e Saneamento - Brasil
[5] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Hidráulica e Saneamento - Brasil
[6] Federal University of São Carlos. Department of Biology - Brasil
[7] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Hidráulica e Saneamento - Brasil
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Química Nova; v. 43, n. 7, p. 844-850, 2020-08-21. |
| Abstract | |
The inhibition effect of limonene on the organisms involved in anaerobic reactors may affect obtaining H2 in this process. Rapid and precise limonene quantification is desirable to characterize wastewaters. The objective of this research was to develop a Gas Chromatography Coupled to Mass Spectrometry (GC-MS) method to determine limonene concentration in liquid samples from batch reactors applied to H2 production at 30 ºC. Method validation was carried out through calibration curves (3 to 20 mg L-1of limonene), in addition to evaluating its precision (CV =0.1%), linearity (R2=0.979), limits of detection (1.7 mg L-1) and quantification (4.2 mg L-1). Its inhibitory effect was evaluated with increasing concentrations of limonene (without addition to 2000 mg L-1). Limonene affected the starting time of H2 production (λ), since λ was 8.7 h in control assays and 15 h with 2000 mg L-1 of limonene. The same was observed for obtaining H2, since 19.5 mmol H2 L-1 was obtained in control assays and 8.7 mmol H2 L-1 was obtained in assays with 2000 mg L-1 of limonene. This method was effective for limonene determination in liquid samples from batch reactors and could be used for characterization and control of anaerobic reactors. (AU) | |
| FAPESP's process: | 15/15880-1 - Biological treatment of citrus industry wastewater in horizontal-flow anaerobic immobilized biomass with different support materials |
| Grantee: | Arnaldo Sarti |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/01722-0 - Biogas obtainment and other compounds of biotechnological interest from citrus/orange processing residues |
| Grantee: | Franciele Pereira Camargo |
| Support Opportunities: | Scholarships in Brazil - Doctorate |