Evaluation of integrated UFCW-MFC reactor for azo dye wastewater treatment and simultaneous bioelectricity generation

• Autorzy: Zou Haiming , Chu Lin , Wang Yan

Identyfikatory

DOI

10.37190/epe200105

• Języki publikacji: EN

Abstrakty

EN

An up-flow constructed wetland (UFCW) incorporating a novel membrane-less air-cathode single-chamber microbial fuel cell (MFC) was designed to treat dye wastewater and simultaneously generate bioelectricity. The performance of UFCW-MFC was evaluated via Methyl Orange (MO) and chemical oxygen demand (COD) removal rates and the output voltage. For comparison, the performance of a single UFCW was also assessed. A repeatable and stable voltage output of about 0.44±0.2 V was obtained in UFCW-MFC. The MO and COD removal rates in UFCW-MFC were 93.5 and 57.2%, respectively, significantly higher than those in single UFCW (75.4 and 42.6%, respectively), suggesting the obvious enhancement of electrodes on MO and COD removal. The anode zone of UFCW-MFC made the most contribution to MO and COD removal compared with other layers. The oxidation-reduction potential (ORP) and dissolved oxygen (DO) profiles showed that the anaerobic environment was well developed in the lower part of UFCW-MFC (0–24 cm) and the upper part (41–42 cm) had a good aerobic environment, thus greatly contributing to the MO anaerobic reduction and aerobic degradation of breakdown products. These results obtained here suggest that the UFCW-MFC may provide an effective alternative for the treatment of dye wastewater and simultaneous bioelectricity generation.

Słowa kluczowe

EN

COD; UFCW-MFC; methyl orange; wastewater

PL

ChZT; UFCW-MFC; oranż metylowy; oczyszczanie ścieków

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2020
• Tom: Vol. 46, nr 1
• Strony: 63--72
• Opis fizyczny: Bibliogr. 25 poz., tab., rys.

Twórcy

autor

Zou Haiming

• Department of Resource and Environment, Anhui Science and Technology University, Fengyang 233100, Anhui, China

autor

Chu Lin

• Department of Resource and Environment, Anhui Science and Technology University, Fengyang 233100, Anhui, China

autor

Wang Yan

• Department of Resource and Environment, Anhui Science and Technology University, Fengyang 233100, Anhui, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).