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Rungjaeng C, Ratanatamskul C. Effect of antibiotics addition on nutrient removal stability and microbial community change of the solar-powered oxidation ditch-membrane bioreactor in treating building wastewater. CHEMOSPHERE 2024; 349:140786. [PMID: 38013026 DOI: 10.1016/j.chemosphere.2023.140786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/07/2023] [Accepted: 11/21/2023] [Indexed: 11/29/2023]
Abstract
The solar-powered oxidation ditch-membrane bioreactors (SOD-MBR) system was developed and operated with long solid retention times (SRTs) of 80 and 160 days. The aim was to investigate the effects of using a long SRT and antibiotics in building wastewater on the stability of nutrient removal, as well as membrane fouling. An increase in the SRT from 80 days to 160 days did not significantly affect the performance of the SOD-MBR system. Ciprofloxacin and Sulfamethoxazole removal efficiencies were 94.47 ± 1.54% and 87.54 ± 24.7%. However, the presence of antibiotics resulted in lower removal efficiencies for NH4+-nitrogen and phosphorus and stimulated the production of extracellular polymeric substances (EPS), particularly proteins in L-EPS and T-EPS of the foulant. FTIR and FEEM analysis revealed that the microbial sludge primarily consisted of proteins, carbohydrates, and lipids. Furthermore, the relative abundance analysis of microbial communities identified bacteria associated with nitrogen removal in the SOD-MBR system, including Anammox, AOB (ammonia oxidizing bacteria), DNB (denitrifying bacteria), and NOB (nitrite oxidizing bacteria), with a total of 25 genera. The majority of these bacteria were stimulated by the presence of antibiotics, resulting in higher relative abundance. Finally, the SOD-MBR system achieved energy savings of 97.38% by utilizing photovoltaic (PV) technology.
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Affiliation(s)
- Chanissara Rungjaeng
- Center of Excellence in Innovative Waste Treatment and Water Reuse, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chavalit Ratanatamskul
- Center of Excellence in Innovative Waste Treatment and Water Reuse, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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Mkpuma VO, Moheimani NR, Fischer K, Schulze A, Ennaceri H. Membrane surface zwitterionization for an efficient microalgal harvesting: A review. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rita AI, Nabais AR, Neves LA, Huertas R, Santos M, Madeira LM, Sanches S. Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents. MEMBRANES 2022; 12:membranes12010098. [PMID: 35054624 PMCID: PMC8779506 DOI: 10.3390/membranes12010098] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/06/2022] [Accepted: 01/09/2022] [Indexed: 02/04/2023]
Abstract
Spent caustic effluents are very challenging due to their very hazardous nature in terms of toxicity as well as their extreme pH (approximately 12–14). Spent caustic has presented a challenge for wastewater treatment in refineries, due to its composition rich in mercaptans, sulfides and other aromatic compounds. To address such problems, membrane filtration was studied using real effluents from Sines Refinery, in Portugal. The present study attempts to assess the potential for spent caustic treatment with nanofiltration (NF) polymeric and ceramic membranes, assessing membrane life expectancy. For that, membrane aging studies in static mode were performed with the polymeric membrane before attempting NF treatment (dynamic studies). A ceramic membrane was also tested for the first time with this type of effluents, though only in dynamic mode. Although the polymeric membrane performance was very good and in accordance with previous studies, its lifespan was very reduced after 6 weeks of contact with spent caustic, compromising its use in an industrial unit. Contrarily to expectations, the ceramic membrane tested was not chemically more resistant than the polymeric one upon direct contact with spent caustic (loss of retention capacity in less than 1 h in contact with the spent caustic). The results obtained suggest that a pH of 13.9 is very aggressive, even for ceramic membranes.
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Affiliation(s)
- Ana Isabel Rita
- Sines Refinery, Petrogal S.A., 7520-952 Sines, Portugal; (A.I.R.); (M.S.)
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;
- LAQV/REQUIMTE, Chemistry Department, Nova School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (A.R.N.); (L.A.N.); (R.H.)
| | - Ana Rita Nabais
- LAQV/REQUIMTE, Chemistry Department, Nova School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (A.R.N.); (L.A.N.); (R.H.)
| | - Luisa A. Neves
- LAQV/REQUIMTE, Chemistry Department, Nova School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (A.R.N.); (L.A.N.); (R.H.)
| | - Rosa Huertas
- LAQV/REQUIMTE, Chemistry Department, Nova School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (A.R.N.); (L.A.N.); (R.H.)
- IBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-157 Oeiras, Portugal
| | - Maria Santos
- Sines Refinery, Petrogal S.A., 7520-952 Sines, Portugal; (A.I.R.); (M.S.)
| | - Luis M. Madeira
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;
| | - Sandra Sanches
- IBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-157 Oeiras, Portugal
- Correspondence:
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Mkpuma VO, Moheimani NR, Ennaceri H. Microalgal dewatering with focus on filtration and antifouling strategies: A review. ALGAL RES 2022. [DOI: 10.1016/j.algal.2021.102588] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Ebrahimi M, Humpert D, Schönherr S, Czermak P. Keramische Membrantechnologie für die Verfügbarmachung biogener Stoffströme. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202000160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mehrdad Ebrahimi
- Technische Hochschule Mittelhessen Institut für Bioverfahrenstechnik und Pharmazeutische Technologie -IBPT- Wiesen Straße 14 35390 Gießen Deutschland
| | - Daniel Humpert
- Technische Hochschule Mittelhessen Institut für Bioverfahrenstechnik und Pharmazeutische Technologie -IBPT- Wiesen Straße 14 35390 Gießen Deutschland
| | - Stefan Schönherr
- Technische Hochschule Mittelhessen Institut für Bioverfahrenstechnik und Pharmazeutische Technologie -IBPT- Wiesen Straße 14 35390 Gießen Deutschland
| | - Peter Czermak
- Technische Hochschule Mittelhessen Institut für Bioverfahrenstechnik und Pharmazeutische Technologie -IBPT- Wiesen Straße 14 35390 Gießen Deutschland
- Justus-Liebig Universität Gießen Fachbereich Biologie und Chemie 35390 Gießen Deutschland
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