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Song W, Li B, Zhuang Z, Du X, Lin D, Zhou Y, Wang Z. Enhanced electrooxidation/electrocoagulation-ultrafiltration membrane process with S 2O 42- for saline algae-containing surface water treatment: Purification and membrane performance. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123423. [PMID: 38307242 DOI: 10.1016/j.envpol.2024.123423] [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: 11/15/2023] [Revised: 01/03/2024] [Accepted: 01/20/2024] [Indexed: 02/04/2024]
Abstract
The surface water in coastal areas involving algae, is often affected by saline and emerging contaminants caused by saltwater intrusion, and expanding aquaculture industry. Therefore, it is necessary to conduct studies to address the issues that affect ecological safety and health of aquatic environments. This study presents the development of an enhanced electrooxidation/electrocoagulation-ultrafiltration (EO/EC-UF) membrane process using S2O42- (DTN@EO/EC-UF) for the treatment of saline water containing algae. Our results have shown that significant removal of NH3-N (95.1 %), UV254 (89.4 %) and algae (75.7 %) was achieved with the addition of S2O42- (DTN). Additionally, an optimal DTN dosage of 40 mg/L was used in the DTN@EO/EC process to enhance water purification, utilizing reactive species such as SO4·- and ·OH. After coupling with the ultrafiltration (UF) process, optimal operating conditions (DTN: 40 mg/L, current density: 4.65 mA/cm2, electrolysis: 60 s) were applied to treat the saline algae-containing surface water. The generated free chlorine, including NHCl2, accounted for approximately 22 % (0.14 mg/L). In addition, DTN significantly improved the ceramic membrane's permeability and anti-fouling characteristics, with a maximum increasing specific flux from 0.76 to 0.93, mainly attributing to the reduced the irreversible fouling resistance. Furthermore, we discovered that common membrane cleaning using acid or base enhanced the DTN@EO/EC-UF process. In conclusion, this study established an innovative DTN@EO/EC-UF process with excellent performance in terms of water purification and membrane self-cleaning. The results provided a promising alternative for treating saline algae-containing surface water.
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Affiliation(s)
- Wei Song
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Bingxuan Li
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Zhongjian Zhuang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Xing Du
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Dachao Lin
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China; State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Yu Zhou
- Guangzhou Water Supply Co., Ltd., Guangzhou, 510000, PR China.
| | - Zhihong Wang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
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2
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Keem MJ, Seo SW, Kim T, Jo BG, Kim SN, Yoon IS, Yang MH. A High-Performance Liquid Chromatography with Photodiode Array Detection Method for Simultaneous Determination of Three Compounds Isolated from Wikstroemia ganpi: Assessment of the Effects on Cytochrome P450-Mediated Metabolism In Vitro and In Vivo. Nutrients 2023; 15:4061. [PMID: 37764844 PMCID: PMC10534693 DOI: 10.3390/nu15184061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
In natural products, the content and quality of the marker components differ depending on the part, production area, collection period, and extraction method; therefore, a standardized analysis method is required to obtain consistent results. This study developed a simultaneous analysis method for three marker components (7-methoxylutolin-5-O-glucoseide, pilloin 5-O-β-d-glucopyranoside, rutarensin) isolated and purified from Wikstroemia ganpi (W. ganpi). Simultaneous analysis was performed using high-performance liquid chromatography with photodiode array detection (HPLC-PDA) method that was validated according to the International Council for Harmonisation (ICH) guidelines. The developed analytical method exhibited linearity (r2 > 0.999), detection limits (0.72-3.34 μg/mL), and quantification limits (2.19-10.22 μg/mL). The relative standard deviation (RSD) value of intra- and inter-day precisions was less than 1.68%, and analyte recoveries (93.42-117.55%; RSD < 1.86%) were validated according to the analytical procedures, and all parameters were within the allowable range. Quantitative analysis of the three marker components from W. ganpi MeOH extract (WGM) showed 7-methoxylutolin-5-O-glucoseide with the highest content (51.81 mg/g). The inhibitory effects of WGM on cytochrome P450 (CYP) substrate drugs were further investigated. The in vitro study revealed that WGM inhibited the CYP3A-mediated metabolism of buspirone and that 7-methoxylutolin-5-O-glucoseide and pilloin 5-O-β-d-glucopyranoside inhibited the metabolism of buspirone with IC50 values of 2.73 and 18.7 μM, respectively. However, a single oral dose of WGM did not have significant effects on the pharmacokinetics of buspirone in rats, suggesting that WGM cannot function as an inhibitor of CYP3A-mediated metabolism in vivo.
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Affiliation(s)
- Min-Ji Keem
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; (M.-J.K.); (B.-G.J.)
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
| | - Seong-Wook Seo
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
- Department of Manufacturing Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Taeyoung Kim
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
- Department of Manufacturing Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Beom-Geun Jo
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; (M.-J.K.); (B.-G.J.)
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
| | - In-Soo Yoon
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
- Department of Manufacturing Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Min Hye Yang
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; (M.-J.K.); (B.-G.J.)
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
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3
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Cämmerer M, Mayer T, Schott C, Steingroewer J, Petrich R, Borsdorf H. Membrane inlet—ion mobility spectrometry with automatic spectra evaluation as online monitoring tool for the process control of microalgae cultivation. Eng Life Sci 2023; 23:e2200039. [PMID: 37025189 PMCID: PMC10071569 DOI: 10.1002/elsc.202200039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 01/25/2023] [Accepted: 02/15/2023] [Indexed: 03/07/2023] Open
Abstract
The cultivation of algae either in open raceway ponds or in closed bioreactors could allow the renewable production of biomass for food, pharmaceutical, cosmetic, or chemical industries. Optimal cultivation conditions are however required to ensure that the production of these compounds is both efficient and economical. Therefore, high-frequency analytical measurements are required to allow timely process control and to detect possible disturbances during algae growth. Such analytical methods are only available to a limited extent. Therefore, we introduced a method for monitoring algae release volatile organic compounds (VOCs) in the headspace above a bioreactor in real time. This method is based on ion mobility spectrometry (IMS) in combination with a membrane inlet (MI). The unique feature of IMS is that complete spectra are detected in real time instead of sum signals. These spectral patterns produced in the ion mobility spectrum were evaluated automatically via principal component analysis (PCA). The detected peak patterns are characteristic for the respective algae culture; allow the assignment of the individual growth phases and reflect the influence of experimental parameters. These results allow for the first time a continuous monitoring of the algae cultivation and thus an early detection of possible disturbances in the biotechnological process.
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Affiliation(s)
- Malcolm Cämmerer
- Department Monitoring and Exploration Technologies UFZ Helmholtz Centre for Environmental Research Leipzig Germany
| | - Thomas Mayer
- Department Monitoring and Exploration Technologies UFZ Helmholtz Centre for Environmental Research Leipzig Germany
| | - Carolin Schott
- Faculty of Mechanical Science and Engineering Institute of Natural Materials Technology, Technical University Dresden Dresden Germany
| | - Juliane Steingroewer
- Faculty of Mechanical Science and Engineering Institute of Natural Materials Technology, Technical University Dresden Dresden Germany
| | - Ralf Petrich
- IFU GmbH Private Institute for Analytics Frankenberg/Sa. Germany
| | - Helko Borsdorf
- Department Monitoring and Exploration Technologies UFZ Helmholtz Centre for Environmental Research Leipzig Germany
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4
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Zhong Y, He J, Wu F, Zhang P, Zou X, Pan X, Zhang J. Metagenomic analysis reveals the size effect of magnetite on anaerobic digestion of waste activated sludge after thermal hydrolysis pretreatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158133. [PMID: 35988621 DOI: 10.1016/j.scitotenv.2022.158133] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/14/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Although magnetite has been widely investigated in anaerobic digestion (AD), its role in the practical AD of waste-activated sludge (WAS) after thermal hydrolysis pretreatment (THP) and its size effect remain unclear. In this study, magnetite with four different particle sizes was added during the AD of WAS after THP. With the reduction of magnetite particle size, cumulative methane production was increased, while the optimal dosage of magnetite decreased, with 0.1 μm magnetite at an optimal dosage of 2 g/L achieving the highest cumulative methane production increase of 111.97 % compared with the blank group (without magnetite). Smaller magnetite particles increased α-glucosidase and protease activities, coenzyme F420 concentration, and electron-transport system activity (20.30 %, 173.02 %, 60.39 % and 158.08 % higher respectively than the blank group). The size of magnetite also influenced the establishment of direct interspecies electron transfer (DIET) during AD. Based on the analysis of the pilA gene abundance, magnetite with a large particle size could promote the formation of e-pili in syntrophic electroactive bacteria (Clostridium, Syntrophomonas, and Pseudomonas) and methanogens (Methanospirillum), thereby completing electron transfer. However, small-sized magnetite particles stimulated DIET by enhancing the secretion of conductive proteins in extracellular polymeric substances and membrane-bound enzymes (Fpo) in Methanosarcina.
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Affiliation(s)
- Yijie Zhong
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Junguo He
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Fei Wu
- School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK
| | - Pengfei Zhang
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Xiang Zou
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Xinlei Pan
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Jie Zhang
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
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5
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Galinha CF, Crespo JG. Development and Implementation of MBR Monitoring: Use of 2D Fluorescence Spectroscopy. MEMBRANES 2022; 12:1218. [PMID: 36557125 PMCID: PMC9783007 DOI: 10.3390/membranes12121218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
The monitoring of a membrane bioreactor (MBR) requires the assessment of both biological and membrane performance. Additionally, the development of membrane fouling and the requirements for frequent membrane cleaning are still major concerns during MBR operation, requiring tight monitoring and system characterization. Transmembrane pressure is usually monitored online and allows following the evolution of membrane performance. However, it does not allow distinguishing the fouling mechanisms occurring in the system or predicting the future behavior of the membrane. The assessment of the biological medium requires manual sampling, and the analyses involve several steps that are labor-intensive, with low temporal resolution, preventing real-time monitoring. Two-dimensional fluorescence spectroscopy is a comprehensive technique, able to assess the system status at real-time without disturbing the biological system. It provides large sets of data (system fingerprints) from which meaningful information can be extracted. Nevertheless, mathematical data analysis (such as machine learning) is essential to properly extract the information contained in fluorescence spectra and correlate it with operating and performance parameters. The potential of 2D fluorescence spectroscopy as a process monitoring tool for MBRs is, therefore, discussed in the present work in view of the actual knowledge and the authors' own experience in this field.
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6
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Ren ZQ, Hong HF, Li GF, Du XN, Zhang LG, Huang BC, Fan NS, Jin RC. A review on characterizing the metabolite property of anammox sludge by spectroscopy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 817:153065. [PMID: 35031359 DOI: 10.1016/j.scitotenv.2022.153065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/07/2022] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
As one of the most promising autotrophic biological nitrogen removal technology, anaerobic ammonia oxidation (anammox) has gained intense attention for the past decades and several full-scale facilities have been implemented worldwide. However, anammox bacteria are easily affected by disturbed external environmental factors, which commonly leads to the fluctuations in reactor performance. The response of anammox sludge to external stress results in changes in components and structural characteristics of intracellular and extracellular polymer substances. Real-time and convenient spectral analysis of anammox sludge metabolites can give early warning of performance deterioration under external stresses, which is of great significance to the stable operation of bioreactor. This review summarized the research progress on characterizing the intracellular and extracellular metabolites of anammox sludge through spectroscopic techniques. The correlation between anammox sludge activity and its key metabolites was analyzed. Also, the limitations and future prospects of applying spectral analytical techniques for anammox bioreactor monitoring were discussed and outlooked. This review may provide valuable information for both scientific study and engineering application of anammox based nitrogen removal technology.
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Affiliation(s)
- Zhi-Qi Ren
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - He-Fang Hong
- Taizhou Municipal Ecology and Environment Bureau Linhai Branch, Taizhou 317000, China
| | - Gui-Feng Li
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Xue-Ning Du
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Li-Ge Zhang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Bao-Cheng Huang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Nian-Si Fan
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Ren-Cun Jin
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
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7
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Sá M, Ferrer-Ledo N, Gao F, Bertinetto CG, Jansen J, Crespo JG, Wijffels RH, Barbosa M, Galinha CF. Perspectives of fluorescence spectroscopy for online monitoring in microalgae industry. Microb Biotechnol 2022; 15:1824-1838. [PMID: 35175653 PMCID: PMC9151345 DOI: 10.1111/1751-7915.14013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 11/27/2022] Open
Abstract
Microalgae industrial production is viewed as a solution for alternative production of nutraceuticals, cosmetics, biofertilizers, and biopolymers. Throughout the years, several technological advances have been implemented, increasing the competitiveness of microalgae industry. However, online monitoring and real-time process control of a microalgae production factory still require further development. In this mini-review, non-destructive tools for online monitoring of cellular agriculture applications are described. Still, the focus is on the use of fluorescence spectroscopy to monitor several parameters (cell concentration, pigments, and lipids) in the microalgae industry. The development presented makes it the most promising solution for monitoring up-and downstream processes, different biological parameters simultaneously, and different microalgae species. The improvements needed for industrial application of this technology are also discussed.
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Affiliation(s)
- Marta Sá
- Bioprocess Engineering, Wageningen University and Research, Wageningen, 6708PB, The Netherlands.,Stichting imec Nederland - OnePlanet Research Center, Wageningen, 6708WH, The Netherlands
| | - Narcis Ferrer-Ledo
- Bioprocess Engineering, Wageningen University and Research, Wageningen, 6708PB, The Netherlands
| | - Fengzheng Gao
- Bioprocess Engineering, Wageningen University and Research, Wageningen, 6708PB, The Netherlands
| | - Carlo G Bertinetto
- Institute for Molecules and Materials (Analytical Chemistry), Radboud University, Nijmegen, The Netherlands
| | - Jeroen Jansen
- Institute for Molecules and Materials (Analytical Chemistry), Radboud University, Nijmegen, The Netherlands
| | - João G Crespo
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Caparica, 2829-516, Portugal
| | - Rene H Wijffels
- Bioprocess Engineering, Wageningen University and Research, Wageningen, 6708PB, The Netherlands.,Faculty of Biosciences and Aquaculture, Nord University, Bodø, N-8049, Norway
| | - Maria Barbosa
- Bioprocess Engineering, Wageningen University and Research, Wageningen, 6708PB, The Netherlands
| | - Claudia F Galinha
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Caparica, 2829-516, Portugal
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8
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From Black Box to Machine Learning: A Journey through Membrane Process Modelling. MEMBRANES 2021; 11:membranes11080574. [PMID: 34436337 PMCID: PMC8398568 DOI: 10.3390/membranes11080574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/27/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022]
Abstract
Membrane processes are complex systems, often comprising several physicochemical phenomena, as well as biological reactions, depending on the systems studied. Therefore, process modelling is a requirement to simulate (and predict) process and membrane performance, to infer about optimal process conditions, to assess fouling development, and ultimately, for process monitoring and control. Despite the actual dissemination of terms such as Machine Learning, the use of such computational tools to model membrane processes was regarded by many in the past as not useful from a scientific point-of-view, not contributing to the understanding of the phenomena involved. Despite the controversy, in the last 25 years, data driven, non-mechanistic modelling is being applied to describe different membrane processes and in the development of new modelling and monitoring approaches. Thus, this work aims at providing a personal perspective of the use of non-mechanistic modelling in membrane processes, reviewing the evolution supported in our own experience, gained as research group working in the field of membrane processes. Additionally, some guidelines are provided for the application of advanced mathematical tools to model membrane processes.
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9
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Jales JT, Barbosa TM, de Medeiros JR, de Lima LAS, de Lima KMG, Gama RA. Infrared spectroscopy and forensic entomology: Can this union work? A literature review. J Forensic Sci 2021; 66:2080-2091. [PMID: 34291458 DOI: 10.1111/1556-4029.14800] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/11/2021] [Accepted: 06/01/2021] [Indexed: 12/01/2022]
Abstract
For more than two decades, infrared spectroscopy techniques combined with multivariate analysis have been efficiently applied in several entomological fields, such as Taxonomy and Toxicology. However, little is known about its use and applicability in Forensic entomology (FE) field, with vibrational techniques such as Near-infrared spectroscopy (NIRS) and Medium-infrared spectroscopy (MIRS) underutilized in forensic sciences. Thus, this work describes the potential of NIRS, MIRS, and other spectroscopic methodologies, for entomological analysis in FE, as well as discusses its future uses for criminal or civil investigations. After a thorough research on scientific journals database, a total of 33 publications were found in scientific journals, with direct or indirect application to FE, including experimental applications of NIRS and MIRS in taxonomic discrimination of species, larval age prediction, detection of toxic substances in insects from environments or crime scenes, and detection of internal or external infestations by live or dead insects in stored products. Besides, NIRS and MIRS combined with multivariate analysis were efficient, inexpensive, fast, and non-destructive analytical tools. However, more than 51% of the spectroscopic publications are concentrated in the stored products field, and so we discuss the need for expansion and more direct application in other FE areas. We hope the number of articles continues to increase, and as NIRS and MIRS technology progress, they advance in forensic research and routine use.
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Affiliation(s)
- Jessica T Jales
- Laboratory of Insect and Vectors, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN, Brazil.,Biochemistry and Molecular Biology post-graduation program, Department of Biochemistry, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Taciano M Barbosa
- Laboratory of Insect and Vectors, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN, Brazil.,Parasitic biology post-graduation program, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Jucélia R de Medeiros
- Laboratory of Insect and Vectors, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN, Brazil.,Parasitic biology post-graduation program, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Leomir A S de Lima
- Laboratory of Biological Chemistry and Chemometric, Department of Chemistry, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Kássio M G de Lima
- Laboratory of Biological Chemistry and Chemometric, Department of Chemistry, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Renata A Gama
- Laboratory of Insect and Vectors, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN, Brazil.,Parasitic biology post-graduation program, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
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10
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Saletnik A, Saletnik B, Puchalski C. Overview of Popular Techniques of Raman Spectroscopy and Their Potential in the Study of Plant Tissues. Molecules 2021; 26:1537. [PMID: 33799702 PMCID: PMC7999012 DOI: 10.3390/molecules26061537] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/05/2021] [Accepted: 03/09/2021] [Indexed: 01/15/2023] Open
Abstract
Raman spectroscopy is one of the main analytical techniques used in optical metrology. It is a vibration, marker-free technique that provides insight into the structure and composition of tissues and cells at the molecular level. Raman spectroscopy is an outstanding material identification technique. It provides spatial information of vibrations from complex biological samples which renders it a very accurate tool for the analysis of highly complex plant tissues. Raman spectra can be used as a fingerprint tool for a very wide range of compounds. Raman spectroscopy enables all the polymers that build the cell walls of plants to be tracked simultaneously; it facilitates the analysis of both the molecular composition and the molecular structure of cell walls. Due to its high sensitivity to even minute structural changes, this method is used for comparative tests. The introduction of new and improved Raman techniques by scientists as well as the constant technological development of the apparatus has resulted in an increased importance of Raman spectroscopy in the discovery and defining of tissues and the processes taking place in them.
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Affiliation(s)
| | - Bogdan Saletnik
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Sciences, University of Rzeszów, Ćwiklińskiej 2D, 35-601 Rzeszów, Poland; (A.S.); (C.P.)
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11
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Deng Y, Li W, Ruan W, Huang Z. Applying EEM- PARAFAC Analysis With Quantitative Real-Time PCR to Monitor Methanogenic Activity of High-Solid Anaerobic Digestion of Rice Straw. Front Microbiol 2021; 12:600126. [PMID: 33643232 PMCID: PMC7905213 DOI: 10.3389/fmicb.2021.600126] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 01/21/2021] [Indexed: 11/13/2022] Open
Abstract
The methanogenic activity is an important indicator to assess the efficiency of high-solid anaerobic digestion. However, it is not yet elucidated clearly how to detect the parameter rapidly and reliably in the rice straw feeding reactor. Co-inoculated with ruminal digesta and anaerobic sludge, the digestion performance was studied at three different organic loading rates (OLRs). The excitation emission matrix–parallel factor analysis (EEM–PARAFAC) was used to detect dynamic changes in the characteristic of fluorescence components. Our results revealed that CH4 productivity reached 280.90 mL/g volatile solid (VS) with a 54.39% CH4 content under the OLR of 2.26 g/(L⋅d), which amount to 80.29% of its theoretical value. At the OLR of 2.47 g/(L⋅d), the average accumulated NH4+ concentration was 1082.63 mg/L, which resulted in the hydrogenotrophic Methanobacteriales decreasing from 1.70 × 109 to 1.04 × 106 copies/g in the solid residues, whereas the acetotrophic Methanosarcinales increased from 7.89 × 106 to 9.44 × 106 copies/g. The dynamics of the methanogenic community consequently influenced the bioconversion efficiency of rice straw, and CH4 productivity was reduced to 256.54 mL/g VS. The three fluorescent components, at the excitation/emission wavelength of 420 nm/470 nm, 340 nm/430 nm, and 280 nm/340 nm, were decomposed by PARAFAC model in the digestate. Fluorescence intensities of coenzyme F420 and NADH reflected the dynamic changes of CH4-producing activity and anaerobic digestion efficiency, respectively. The coenzyme F420, unique to hydrogenotrophic methanogens, was correlated with methane yield, suggesting they played a dominant role in the anaerobic reactor. This study demonstrates that the EEM–PARAFAC combined with Q-PCR can be used to characterize methanogenic activity variation during the high-solid anaerobic digestion of rice straw with 15% total solid (TS).
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Affiliation(s)
- Yuying Deng
- Changzhou Vocational Institute of Engineering, Changzhou, China.,School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - Weihua Li
- Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Wenquan Ruan
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - Zhenxing Huang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
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12
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Facci RR, Cezário PSDO, de Gois JS, Luna AS, Pacheco WF. Identification of Counterfeit Vodka by Synchronous Fluorescence Spectroscopy and Chemometric Analysis. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1810694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Rômulo R. Facci
- Departamento de Química Analítica, Universidade Federal Fluminense, Niterói, Brazil
| | - Paulo S. de O. Cezário
- Programa de pós graduação em engenharia química, Universidade do Estado do Rio de Janiro, Rio de Janeiro, Brazil
| | - Jefferson S. de Gois
- Programa de pós graduação em engenharia química, Universidade do Estado do Rio de Janiro, Rio de Janeiro, Brazil
| | - Aderval S. Luna
- Programa de pós graduação em engenharia química, Universidade do Estado do Rio de Janiro, Rio de Janeiro, Brazil
| | - Wagner F. Pacheco
- Departamento de Química Analítica, Universidade Federal Fluminense, Niterói, Brazil
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13
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Brunner M, Brosig P, Losing M, Kunzelmann M, Calvet A, Stiefel F, Bechmann J, Unsoeld A, Schaub J. Towards robust cell culture processes - Unraveling the impact of media preparation by spectroscopic online monitoring. Eng Life Sci 2020; 19:666-680. [PMID: 32624960 PMCID: PMC6999248 DOI: 10.1002/elsc.201900050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 07/12/2019] [Accepted: 07/31/2019] [Indexed: 11/09/2022] Open
Abstract
Biopharmaceutical manufacturing processes can be affected by variability in cell culture media, e.g. caused by raw material impurities. Although efforts have been made in industry and academia to characterize cell culture media and raw materials with advanced analytics, the process of industrial cell culture media preparation itself has not been reported so far. Within this publication, we first compare mid-infrared and two-dimensional fluorescence spectroscopy with respect to their suitability as online monitoring tools during cell culture media preparation, followed by a thorough assessment of the impact of preparation parameters on media quality. Through the application of spectroscopic methods, we can show that media variability and its corresponding root cause can be detected online during the preparation process. This methodology is a powerful tool to avoid batch failure and is a valuable technology for media troubleshooting activities. Moreover, in a design of experiments approach, including additional liquid chromatography-mass spectrometry analytics, it is shown that variable preparation parameters such as temperature, power input and preparation time can have a strong impact on the physico-chemical composition of the media. The effect on cell culture process performance and product quality in subsequent fed-batch processes was also investigated. The presented results reveal the need for online spectroscopic methods during the preparation process and show that media variability can already be introduced by variation in media preparation parameters, with a potential impact on scale-up to a commercial manufacturing process.
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Affiliation(s)
- Matthias Brunner
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Philipp Brosig
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Monika Losing
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Marco Kunzelmann
- Analytical Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Amandine Calvet
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Fabian Stiefel
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Jan Bechmann
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Andreas Unsoeld
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Jochen Schaub
- Bioprocess Development Biologicals Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
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14
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Guo J, Kang Y. Characterization of sulfate-reducing bacteria anaerobic sludge granulation enhanced by chitosan. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 253:109648. [PMID: 31634741 DOI: 10.1016/j.jenvman.2019.109648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/18/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
Two laboratory-scale up-flow anaerobic sludge granules reactors were operated as control reactor (R1) and chitosan (CTS) addition reactor (R2) to investigate the effect of the addition of CTS on the granulation process of sulfate-reducing bacteria (SRB) anaerobic sludge. Granular sludge with the diameter greater than 0.5 mm was selected to calculate the granulation percentage, and the remaining sludge was considered as flocculent sludge in this paper. The results showed that the granulation percentage in the two reactors were stabilized to 47.3% and 64.2%, respectively. The sizes of sludge granules in R2 were mainly between 0.5 and 1.5 mm with the average pore diameter of 91.6 nm and the porosity of 57.1% while the granules in the same particle size in R1 were 41.5 nm and 46.1%, respectively. It demonstrated that CTS was an appropriate additive which can enhance the formation of SRB granule sludge with better pore structure. The granular sludge with CTS exhibited excellent physical performance and more extracellular polymeric substances, especially for protein (PN). In addition, computational fluid dynamics (CFD) simulation was conducted to illustrate the hydrodynamic characteristics of granules with Kozeny-Carman model. With a higher porosity, the permeability of the granules fed with CTS was considerably increased. Moreover, the model also indicated that the permeability and convection changed significantly with Reynolds numbers (Re) of the external flow field for a given type of the porous structure.
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Affiliation(s)
- Jing Guo
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Yong Kang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China.
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15
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Pospiech M, Javůrková Z, Tremlová B, Běhalová H. Characterization of fruit trees pollen. POTRAVINARSTVO 2019. [DOI: 10.5219/1096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
One of the options to determine botanical origin of trees or honey is the analysis of pollen grains. The characteristics of pollen grains in Czech flora has not been sufficiently described yet. Within this work, fruit trees pollen of Czech origin was characterized on the basis of morphological and spectral description of pollen grains produced by fruit species of M. domestica, P. armenica, P. persica, P. domestica, P. avium and P. cerasus. The morphological characterization results of the studied fruit species are consistent with results by other authors, but certain differences between the pollen grains of some fruit trees were confirmed. Most morphological differences were confirmed among the Malus and Prunus genera. Results of morphological and spectral analyzes further confirmed the differences between some types of fruit trees, but homogeneity remained for individual species even in mixed samples. Morphological and spectral analysis can therefore be used for botanical identification of pollen. If this knowledge is applied to pollen analysis in honey, these methods can also be used to verify the botanical origin of honey.
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16
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Jin X, Wang W, Wang S, Jin P, Wang XC, Zhang W, An W, Wang Y. Application of a hybrid gravity-driven membrane filtration and dissolved ozone flotation (MDOF) process for wastewater reclamation and membrane fouling mitigation. J Environ Sci (China) 2019; 81:17-27. [PMID: 30975320 DOI: 10.1016/j.jes.2019.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 02/11/2019] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
This study proposed a novel membrane filtration and dissolved ozone flotation integrated (MDOF) process and tested it at pilot scale. Membrane filtration in the MDOF process was operated in gravity-driven mode, and required no backwashing, flushing, or chemical cleaning. Because ozone was added in the MDOF process, ozonation, coagulation, and membrane filtration could occur in a single reactor. Moreover, in situ ozonation occurred in the MDOF process, which differs from the conventional pre-ozonation membrane filtration process. Significant enhancement of turbidity removal was further achieved through the addition of membrane filtration. Membrane fouling was mitigated in the MDOF process compared to the MDAF process. In situ ozonation in the MDOF process decreased the fluorescence intensity and transformed the high MW dissolved organics into small MW compounds. For the fouling layer, the extracellular polymeric substance (EPS) contents and cake layer morphology were analyzed. The results indicated that the contents of EPS decreased. Furthermore, a thinner and more loosely structured cake layer formed in the MDOF process. Because coagulation and ozonation occurred simultaneously in a single reactor, the generation of hydroxyl radicals was enhanced through the catalytic effect of Al-based coagulants on ozone decomposition, which further alleviated membrane fouling in the MDOF process.
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Affiliation(s)
- Xin Jin
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Wei Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Shuai Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Pengkang Jin
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Xiaochang C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Wushou Zhang
- Langzheng Environmental Protection Technology Co., Ltd., Xi'an 710075, China
| | - Weijun An
- Langzheng Environmental Protection Technology Co., Ltd., Xi'an 710075, China
| | - Yong Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
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17
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Filippe TC, Marques LMT, Knapik HG, Azevedo JCRD, Pereira JC. Evaluation of Dissolved Organic Carbon Using Synchronized Fluorescence Emission Spectra and Unsupervised Method of Principal Component Analysis (PCA) and Independent Component Analysis (ICA). ACTA ACUST UNITED AC 2019. [DOI: 10.4236/jwarp.2019.113015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Wang C, Liu Y, Jin S, Chen H, Xu X, Wang Z, Xing B, Zhu L. Responsiveness extracellular electron transfer (EET) enhancement of anaerobic digestion system during start-up and starvation recovery stages via magnetite addition. BIORESOURCE TECHNOLOGY 2019; 272:162-170. [PMID: 30336398 DOI: 10.1016/j.biortech.2018.10.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 06/08/2023]
Abstract
Two up-flow anaerobic sludge blanket (UASB) reactors (RM with 10 g Fe L-1 magnetite, RB without magnetite) feeding with synthetic wastewater were built to investigate the effect of magnetite addition on anaerobic digestion (AD) performance during start-up and starvation recovery stages. With the magnetite addition, the COD removal efficiency and biogas production during the two stages were enhanced, and the recovery time of RM was shortened by about 50%. The reduced synthesis of riboflavin and heme c along with enhanced sludge conductivity of RM indicated that magnetite could replace their roles for efficient extracellular electron transfer (EET), which favors the growth of anaerobes. Microbial community analysis showed that potential syntrophic partners like Syntrophaceae and Methanothrix were enriched in RM during the recovery stage, and the performance was improved with quick responsiveness. Results demonstrated that addition of conductive materials like magnetite could improve the stability and restorability of AD process efficiently.
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Affiliation(s)
- Caiqin Wang
- Institute of Environment Pollution Control and Treatment, Zhejiang University, Hangzhou 310058, China
| | - Yang Liu
- Institute of Environment Pollution Control and Treatment, Zhejiang University, Hangzhou 310058, China
| | - Shuai Jin
- Institute of Environment Pollution Control and Treatment, Zhejiang University, Hangzhou 310058, China
| | - Hui Chen
- Institute of Environment Pollution Control and Treatment, Zhejiang University, Hangzhou 310058, China
| | - Xiangyang Xu
- Institute of Environment Pollution Control and Treatment, Zhejiang University, Hangzhou 310058, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou 310058, China; Zhejiang Provincial Engineering Laboratory of Water Pollution Control, 388 Yuhangtang Road, Hangzhou 310058, China
| | - Zhirong Wang
- Zhejiang Provincal Office of Agricultural Ecology and Energy, Hangzhou 310012, China
| | - Bo Xing
- Shaoxing Environmental Monitoring Center, Shaoxing 312000, China
| | - Liang Zhu
- Institute of Environment Pollution Control and Treatment, Zhejiang University, Hangzhou 310058, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou 310058, China; Zhejiang Provincial Engineering Laboratory of Water Pollution Control, 388 Yuhangtang Road, Hangzhou 310058, China.
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19
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A short-term stimulation of ethanol enhances the effect of magnetite on anaerobic digestion. Appl Microbiol Biotechnol 2018; 103:1511-1522. [DOI: 10.1007/s00253-018-9531-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 08/10/2018] [Accepted: 10/07/2018] [Indexed: 10/27/2022]
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20
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Zhou Y, Zhao S, Yin L, Zhang J, Bao Y, Shi H. Development of a Novel Membrane-less Microbial Fuel Cell (ML-MFC) with a Sandwiched Nitrifying Chamber for Efficient Wastewater Treatment. ELECTROANAL 2018. [DOI: 10.1002/elan.201800232] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yuhong Zhou
- Department of Environmental Engineering; Zhejiang University; Yuhangtang Road 866# Hangzhou 310058 China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province; Hangzhou 310058 China
| | - Simeng Zhao
- Department of Environmental Engineering; Zhejiang University; Yuhangtang Road 866# Hangzhou 310058 China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province; Hangzhou 310058 China
| | - Lu Yin
- Zhejiang Design Institute of Water Conservancy and Hydroelectric Power; Hangzhou 310000 China
| | - Jing Zhang
- Department of Environmental Engineering; Zhejiang University; Yuhangtang Road 866# Hangzhou 310058 China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province; Hangzhou 310058 China
| | - Yue Bao
- Zhejiang Province Environmental Science and Technology Co., Ltd.; Hangzhou 311100 China
| | - Huixiang Shi
- Department of Environmental Engineering; Zhejiang University; Yuhangtang Road 866# Hangzhou 310058 China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province; Hangzhou 310058 China
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21
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Abstract
Real-time analytical tools to monitor bioprocess and fermentation in biological and food applications are becoming increasingly important. Traditional laboratory-based analyses need to be adapted to comply with new safety and environmental guidelines and reduce costs. Many methods for bioprocess fermentation monitoring are spectroscopy-based and include visible (Vis), infrared (IR) and Raman. This paper describes the main principles and recent developments in UV-Vis spectroscopy to monitor bioprocess and fermentation in different food production applications.
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22
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Zhang L, Yue Q, Yang K, Zhao P, Gao B. Analysis of extracellular polymeric substances (EPS) and ciprofloxacin-degrading microbial community in the combined Fe-C micro-electrolysis-UBAF process for the elimination of high-level ciprofloxacin. CHEMOSPHERE 2018; 193:645-654. [PMID: 29169139 DOI: 10.1016/j.chemosphere.2017.11.056] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 09/22/2017] [Accepted: 11/12/2017] [Indexed: 05/22/2023]
Abstract
Extracellular polymeric substances (EPS) and ciprofloxacin-degrading microbial community in the combined Fe-C micro-electrolysis and up-flow biological aerated filter (UBAF) process for the treatment of high-level ciprofloxacin (CIP) were analyzed. The research demonstrated a great potential of Fe-C micro-electrolysis-UBAF for the elimination of high-level CIP. Above 90% of CIP removal was achieved through the combined process at 100 mg L-1 of CIP loading. In UBAF, the pollutants were mainly removed at 0-70 cm heights. Three-dimensional fluorescence spectrum (3D-EEM) was used to characterize the chemical structural of loosely bound EPS (LB-EPS) and tightly bound EPS (TB-EPS) extracted from biofilm sample in UBAF. The results showed that the protein-like substances in LB-EPS and TB-EPS had no clear change in the study. Nevertheless, an obvious release of polysaccharides in EPSs was observed during long-term exposure to CIP, which was considered as a protective response of microbial to CIP toxic. The high-throughput sequencing results revealed that the biodiversity of bacteria community became increasingly rich with gradual ciprofloxacin biodegradation in UBAF. The ciprofloxacin-degrading microbial community was mainly dominated by Proteobacteria and Bacteroidetes. Microorganisms from genera Dechloromonas, Brevundimonas, Flavobacterium, Sphingopyxis and Bosea might take a major role in ciprofloxacin degradation. This study provides deep theoretical guidance for real CIP wastewater treatment.
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Affiliation(s)
- Longlong Zhang
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
| | - Qinyan Yue
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
| | - Kunlun Yang
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
| | - Pin Zhao
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
| | - Baoyu Gao
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
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23
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Ding A, Wang J, Lin D, Zeng R, Yu S, Gan Z, Ren N, Li G, Liang H. Effects of GAC layer on the performance of gravity-driven membrane filtration (GDM) system for rainwater recycling. CHEMOSPHERE 2018; 191:253-261. [PMID: 29035797 DOI: 10.1016/j.chemosphere.2017.10.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 10/05/2017] [Accepted: 10/06/2017] [Indexed: 06/07/2023]
Abstract
Gravity-driven membrane filtration (GDM) is promising for decentralized rainwater recycling, owing to low maintenance and energy consumption. However, the organic removal by GDM process is sometimes undesirable and the quality of the permeate cannot meet the standard of water reuse. To improve this, granular activate carbon (GAC) was added as a particle layer on the membrane surface of GDM system. Additionally, a system with sand addition and a system with no particle addition were trialed as comparisons, to study the combined effects of particle hindering and adsorption on the removal efficacy of organics and the development of permeate flux. Results showed that GDM with a GAC layer improved removal efficiency of organics by 25%, and that GAC enhanced removal of florescent compounds (e.g., aromatic proteins, tryptophan proteins and humics), compared with the other two systems. Additionally, the permeate flux in three systems stabilized after Day 25, and kept stable until the end of the operation. However, the presence of GAC layer decreased the level of stable flux (3.2 L/m2h) compared with the control system (4.5 L/m2h). The factors responsible for the lower flux and severe membrane fouling in GAC layer assisted system were the combined effects of particle and adsorption which led to a denser bio-fouling layer with higher amount of biomass and extracellular polymeric substances contents (proteins and polysaccharides). Resistance distribution analyses revealed that GAC layer mainly increased hydraulically reversible resistance (occupied 93%) of the total resistance, indicating that the flux could be recovered easily by simple physical cleaning.
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Affiliation(s)
- An Ding
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Jinlong Wang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Dachao Lin
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Rong Zeng
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Shengping Yu
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Zhendong Gan
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
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24
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Ding A, Wang J, Lin D, Tang X, Cheng X, Li G, Ren N, Liang H. In situ coagulation versus pre-coagulation for gravity-driven membrane bioreactor during decentralized sewage treatment: Permeability stabilization, fouling layer formation and biological activity. WATER RESEARCH 2017; 126:197-207. [PMID: 28957696 DOI: 10.1016/j.watres.2017.09.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/12/2017] [Accepted: 09/16/2017] [Indexed: 06/07/2023]
Abstract
Gravity-driven membrane filtration systems are promising for decentralized sewage treatment due to their low energy consumption and low maintenance. However, the low stable permeability/flux is currently limiting their wider application. With the ultimate goal of increasing permeability, the aim of this study was to evaluate the effect of coagulation (in situ coagulation and pre-coagulation) on the performance of a gravity-driven membrane bioreactor (GDMBR) during treatment of synthetic sewage. Results show that in situ coagulation significantly increased permeability (more than two-fold); however, no stabilization of permeability occurred over the whole operation, when non-coagulated and pre-coagulated reactors were compared. The high permeability observed was attributed to the accumulated aluminium floc in the reactor, which prevented formation of fluorescent microbial metabolites (aromatic and tryptophan proteins, as well as fulvic acids), and further avoided membrane pore blocking. In addition, the surface porosity of the fouling layer was improved (from 11.2% to 32.4% for non-coagulated and in situ coagulated reactors). The unstable permeability was possibly associated with lower biological processes within the fouling layer. These might include lower adenosine triphosphate (ATP) content and lower fluorescent metabolites from the extracellular polymeric substances (EPS) caused by the accumulated Al (compared with the control). On the other hand, pre-coagulation improved the level of stable permeability compared with the control (80 versus 40 L/m2 h bar), mainly because pre-coagulation decreased the EPS content and also maintained high ATP content of the fouling layer. In addition, both coagulation processes reduced the total filtration resistance, mainly the hydraulically reversible resistance and cake layer resistance, which could lower the cleaning frequency. Overall, coagulation could greatly increase the removal efficiency and improve the GDMBR permeability, which would make the process suitable for decentralized wastewater treatment.
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Affiliation(s)
- An Ding
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Jinlong Wang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Dachao Lin
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Xiaobin Tang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Xiaoxiang Cheng
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
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25
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McGillicuddy N, Floris P, Albrecht S, Bones J. Examining the sources of variability in cell culture media used for biopharmaceutical production. Biotechnol Lett 2017; 40:5-21. [DOI: 10.1007/s10529-017-2437-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 09/07/2017] [Indexed: 12/15/2022]
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26
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Busse C, Biechele P, de Vries I, Reardon KF, Solle D, Scheper T. Sensors for disposable bioreactors. Eng Life Sci 2017; 17:940-952. [PMID: 32624843 DOI: 10.1002/elsc.201700049] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 05/24/2017] [Accepted: 07/14/2017] [Indexed: 12/23/2022] Open
Abstract
Modern bioprocess monitoring demands sensors that provide on-line information about the process state. In particular, sensors for monitoring bioprocesses carried out in single-use bioreactors are needed because disposable systems are becoming increasingly important for biotechnological applications. Requirements for the sensors used in these single-use bioreactors are different than those used in classical reusable bioreactors. For example, long lifetime or resistance to steam and cleaning procedures are less crucial factors, while a requirement of sensors for disposable bioreactors is a cost that is reasonable on a per-use basis. Here, we present an overview of current and emerging sensors for single-use bioreactors, organized by the type of interface of the sensor systems to the bioreactor. A major focus is on non-invasive, in-situ sensors that are based on electromagnetic, semiconducting, optical, or ultrasonic measurements. In addition, new technologies like radio-frequency identification sensors or free-floating sensor spheres are presented. Notably, at this time there is no standard interface between single-use bioreactors and the sensors discussed here. In the future, manufacturers should address this shortcoming to promote single-use bioprocess monitoring and control.
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Affiliation(s)
- Christoph Busse
- Institute of Technical Chemistry Leibniz University Hannover Germany
| | - Philipp Biechele
- Institute of Technical Chemistry Leibniz University Hannover Germany
| | - Ingo de Vries
- Institute of Technical Chemistry Leibniz University Hannover Germany
| | - Kenneth F Reardon
- Department of Chemical and Biological Engineering Colorado State University USA
| | - Dörte Solle
- Institute of Technical Chemistry Leibniz University Hannover Germany
| | - Thomas Scheper
- Institute of Technical Chemistry Leibniz University Hannover Germany
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Pezzotti G, Adachi T, Gasparutti I, Vincini G, Zhu W, Boffelli M, Rondinella A, Marin E, Ichioka H, Yamamoto T, Marunaka Y, Kanamura N. Vibrational monitor of early demineralization in tooth enamel after in vitro exposure to phosphoridic liquid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:19-33. [PMID: 27588727 DOI: 10.1016/j.saa.2016.08.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 08/15/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
The Raman spectroscopic method has been applied to quantitatively assess the in vitro degree of demineralization in healthy human teeth. Based on previous evaluations of Raman selection rules (empowered by an orientation distribution function (ODF) statistical algorithm) and on a newly proposed analysis of phonon density of states (PDOS) for selected vibrational modes of the hexagonal structure of hydroxyapatite, a molecular-scale evaluation of the demineralization process upon in vitro exposure to a highly acidic beverage (i.e., CocaCola™ Classic, pH=2.5) could be obtained. The Raman method proved quite sensitive and spectroscopic features could be directly related to an increase in off-stoichiometry of the enamel surface structure since the very early stage of the demineralization process (i.e., when yet invisible to other conventional analytical techniques). The proposed Raman spectroscopic algorithm might possess some generality for caries risk assessment, allowing a prompt non-contact diagnostic practice in dentistry.
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Affiliation(s)
- Giuseppe Pezzotti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan; Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan.
| | - Tetsuya Adachi
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Isabella Gasparutti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan; Department of Engineering and Architecture, University of Trieste, Via A. Valerio 6/A, 34127 Trieste, Italy
| | - Giulio Vincini
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan; Chemistry, Material and Chemical Engineering Department "Giulio Natta", Polytechnic of Milan, Via Mancinelli 7, Milan 20131, Italy
| | - Wenliang Zhu
- Department of Medical Engineering for Treatment of Bone and Joint Disorders, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0854, Japan
| | - Marco Boffelli
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan
| | - Alfredo Rondinella
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan; Department of Engineering and Architecture, University of Trieste, Via A. Valerio 6/A, 34127 Trieste, Italy
| | - Elia Marin
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan
| | - Hiroaki Ichioka
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Toshiro Yamamoto
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Yoshinori Marunaka
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Bio-Ionomics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Narisato Kanamura
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
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28
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The autofluorescence characteristics of bacterial intracellular and extracellular substances during the operation of anammox reactor. Sci Rep 2017; 7:39289. [PMID: 28091530 PMCID: PMC5238401 DOI: 10.1038/srep39289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 10/27/2016] [Indexed: 11/12/2022] Open
Abstract
Anammox is a cost-effective process to treat nitrogenous wastewater. In this work, excitation–emission matrix (EEM) fluorescence spectroscopy was used to characterize the intracellular and extracellular substances of anammox sludge during reactor operation of 276 days. Four main fluorophores were identified from the intracellular substances. Two main protein-like fluorophores were identified from the extracellular substances. Correlation analysis revealed that intracellular 420 peak and humic-like peak had strong correlation with nitrogen removal rate. The two intracellular protein-like peaks had high correlation with MLVSS and MLVSS growth rate. Correlation analysis between different fluorophores discovered that the two peaks in each of these three groups—two intracellular protein-like peaks, two humic acid-like peaks and the two extracellular protein-like peaks had strong intercorrelation, which gave evidence of their homology. A specific method for fluorescence monitoring of anammox reactor were put forward, which included typical fluorescence indexes and their possible values for different operation phases.
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Chopda VR, Pathak M, Batra J, Gomes J, Rathore AS. Enabler for process analytical technology implementation in Pichia pastoris fermentation: Fluorescence-based soft sensors for rapid quantitation of product titer. Eng Life Sci 2016; 17:448-457. [PMID: 32624790 DOI: 10.1002/elsc.201600155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/11/2016] [Accepted: 10/13/2016] [Indexed: 11/07/2022] Open
Abstract
Rapid quantitation of product titer is a critical input for control of any bioprocess. This measurement, however, is marred by the myriad components that are present in the fermentation broth, often requiring extensive sample pretreatment before analysis. Spectroscopy techniques such as fluorescence spectroscopy are widely recognized as potential monitoring tools. Here, we investigate the possibility of using fluorescence of the culture supernatant as a potential at-line monitoring tool to measure the concentration of a recombinant therapeutic protein expressed in a Pichia pastoris fed-batch fermentation. We propose an integrated method wherein both the target protein and total protein concentrations are predicted using intrinsic riboflavin fluorescence and extrinsic fluorescence, respectively. The root mean square error for estimating the concentrations of the target protein (using riboflavin fluorescence) and total protein (using extrinsic fluorescence) have been estimated to be <0.1 and <0.2, respectively. The proposed approach has been validated for two different biotherapeutic products, human serum albumin and granulocyte colony stimulating factor, that were expressed using Mut+ and Muts strains of P. pastoris, respectively. The proposed approach is rapid (1 min analysis time, 10 min total with at line sampling) and thus could be a significant enabler for process analytical technology implementation in Pichia fermentation.
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Affiliation(s)
- Viki R Chopda
- Department of Chemical Engineering IIT Delhi New Delhi India
| | - Mili Pathak
- Department of Chemical Engineering IIT Delhi New Delhi India
| | - Jyoti Batra
- Department of Chemical Engineering IIT Delhi New Delhi India
| | - James Gomes
- Kusuma School of Biological Sciences IIT Delhi New Delhi India
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30
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Temporal-Lara B, Melendez-Pastor I, Gómez I, Navarro-Pedreño J. Wastewater Biosolid Composting Optimization Based on UV-VNIR Spectroscopy Monitoring. SENSORS (BASEL, SWITZERLAND) 2016; 16:E1919. [PMID: 27854280 PMCID: PMC5134578 DOI: 10.3390/s16111919] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 10/28/2016] [Accepted: 11/11/2016] [Indexed: 11/16/2022]
Abstract
Conventional wastewater treatment generates large amounts of organic matter-rich sludge that requires adequate treatment to avoid public health and environmental problems. The mixture of wastewater sludge and some bulking agents produces a biosolid to be composted at adequate composting facilities. The composting process is chemically and microbiologically complex and requires an adequate aeration of the biosolid (e.g., with a turner machine) for proper maturation of the compost. Adequate (near) real-time monitoring of the compost maturity process is highly difficult and the operation of composting facilities is not as automatized as other industrial processes. Spectroscopic analysis of compost samples has been successfully employed for compost maturity assessment but the preparation of the solid compost samples is difficult and time-consuming. This manuscript presents a methodology based on a combination of a less time-consuming compost sample preparation and ultraviolet, visible and short-wave near-infrared spectroscopy. Spectroscopic measurements were performed with liquid compost extract instead of solid compost samples. Partial least square (PLS) models were developed to quantify chemical fractions commonly employed for compost maturity assessment. Effective regression models were obtained for total organic matter (residual predictive deviation-RPD = 2.68), humification ratio (RPD = 2.23), total exchangeable carbon (RPD = 2.07) and total organic carbon (RPD = 1.66) with a modular and cost-effective visible and near infrared (VNIR) spectroradiometer. This combination of a less time-consuming compost sample preparation with a versatile sensor system provides an easy-to-implement, efficient and cost-effective protocol for compost maturity assessment and near-real-time monitoring.
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Affiliation(s)
- Beatriz Temporal-Lara
- Department of Agrochemistry and Environment, University Miguel Hernández of Elche (UMH), Avenida Universidad s/n Edificio Alcudia, 03202 Elche, Spain.
| | - Ignacio Melendez-Pastor
- Department of Agrochemistry and Environment, University Miguel Hernández of Elche (UMH), Avenida Universidad s/n Edificio Alcudia, 03202 Elche, Spain.
| | - Ignacio Gómez
- Department of Agrochemistry and Environment, University Miguel Hernández of Elche (UMH), Avenida Universidad s/n Edificio Alcudia, 03202 Elche, Spain.
| | - Jose Navarro-Pedreño
- Department of Agrochemistry and Environment, University Miguel Hernández of Elche (UMH), Avenida Universidad s/n Edificio Alcudia, 03202 Elche, Spain.
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31
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Pereira JC, Azevedo JCR, Knapik HG, Burrows HD. Unsupervised component analysis: PCA, POA and ICA data exploring - connecting the dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 165:69-84. [PMID: 27111155 DOI: 10.1016/j.saa.2016.03.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 03/23/2016] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
Under controlled conditions, each compound presents a specific spectral activity. Based on this assumption, this article discusses Principal Component Analysis (PCA), Principal Object Analysis (POA) and Independent Component Analysis (ICA) algorithms and some decision criteria in order to obtain unequivocal information on the number of active spectral components present in a certain aquatic system. The POA algorithm was shown to be a very robust unsupervised object-oriented exploratory data analysis, proven to be successful in correctly determining the number of independent components present in a given spectral dataset. In this work we found that POA combined with ICA is a robust and accurate unsupervised method to retrieve maximal spectral information (the number of components, respective signal sources and their contributions).
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Affiliation(s)
- Jorge Costa Pereira
- Department of Chemistry, University of Coimbra, P-3004 535 Coimbra, Portugal.
| | - Julio Cesar R Azevedo
- Department of Chemistry and Biology, Federal University of Technology - Parana, Rua Deputado Heitor de Alencar Furtado, 4900, 81280-340 Curitiba, PR, Brazil
| | - Heloise G Knapik
- Department of Hydraulic and Sanitation, Federal University of Parana, Centro Politecnico, Bl. 5, Av. Cel Francisco H. dos Santos, 81531-990 Curitiba, PR, Brazil
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32
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Esmonde-White KA, Cuellar M, Uerpmann C, Lenain B, Lewis IR. Raman spectroscopy as a process analytical technology for pharmaceutical manufacturing and bioprocessing. Anal Bioanal Chem 2016; 409:637-649. [PMID: 27491299 PMCID: PMC5233728 DOI: 10.1007/s00216-016-9824-1] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/13/2016] [Accepted: 07/21/2016] [Indexed: 11/30/2022]
Abstract
Adoption of Quality by Design (QbD) principles, regulatory support of QbD, process analytical technology (PAT), and continuous manufacturing are major factors effecting new approaches to pharmaceutical manufacturing and bioprocessing. In this review, we highlight new technology developments, data analysis models, and applications of Raman spectroscopy, which have expanded the scope of Raman spectroscopy as a process analytical technology. Emerging technologies such as transmission and enhanced reflection Raman, and new approaches to using available technologies, expand the scope of Raman spectroscopy in pharmaceutical manufacturing, and now Raman spectroscopy is successfully integrated into real-time release testing, continuous manufacturing, and statistical process control. Since the last major review of Raman as a pharmaceutical PAT in 2010, many new Raman applications in bioprocessing have emerged. Exciting reports of in situ Raman spectroscopy in bioprocesses complement a growing scientific field of biological and biomedical Raman spectroscopy. Raman spectroscopy has made a positive impact as a process analytical and control tool for pharmaceutical manufacturing and bioprocessing, with demonstrated scientific and financial benefits throughout a product’s lifecycle.
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Affiliation(s)
- Karen A Esmonde-White
- Kaiser Optical System, Inc, 371 Parkland Plaza, Ann Arbor, MI, 48103, USA.
- University of Michigan Medical School, Ann Arbor, MI, 48109-5624, USA.
| | - Maryann Cuellar
- Kaiser Optical System, Inc, 371 Parkland Plaza, Ann Arbor, MI, 48103, USA
| | - Carsten Uerpmann
- Kaiser Optical Systems SARL, 5 Allée Moulin Berger, 69130, Ecully, France
| | - Bruno Lenain
- Kaiser Optical Systems SARL, 5 Allée Moulin Berger, 69130, Ecully, France
| | - Ian R Lewis
- Kaiser Optical System, Inc, 371 Parkland Plaza, Ann Arbor, MI, 48103, USA
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33
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Musmann C, Joeris K, Markert S, Solle D, Scheper T. Spectroscopic methods and their applicability for high-throughput characterization of mammalian cell cultures in automated cell culture systems. Eng Life Sci 2016. [DOI: 10.1002/elsc.201500122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Carsten Musmann
- Roche Diagnostics GmbH; Pharma Biotech Production and Development; Penzberg Germany
| | - Klaus Joeris
- Roche Diagnostics GmbH; Pharma Biotech Production and Development; Penzberg Germany
| | - Sven Markert
- Roche Diagnostics GmbH; Pharma Biotech Production and Development; Penzberg Germany
| | - Dörte Solle
- University of Hannover; Institute for Technical Chemistry; Hannover Germany
| | - Thomas Scheper
- University of Hannover; Institute for Technical Chemistry; Hannover Germany
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34
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Bertrand L, Bernard S, Marone F, Thoury M, Reiche I, Gourrier A, Sciau P, Bergmann U. Emerging Approaches in Synchrotron Studies of Materials from Cultural and Natural History Collections. Top Curr Chem (Cham) 2016; 374:7. [DOI: 10.1007/s41061-015-0003-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 11/24/2015] [Indexed: 12/22/2022]
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35
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Pan LT, Han Y. A novel anoxic-aerobic biofilter process using new composite packing material for the treatment of rural domestic wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:2486-2492. [PMID: 27191571 DOI: 10.2166/wst.2016.099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A pilot scale experiment was conducted to evaluate the characteristics of contaminants removal in a continuously two-stage biological process composed of an anoxic biofilter (AF) and an biological aerated filter (BAF). This novel process was developed by introducing new composite packing material (MZF) into bioreactors to treat rural domestic wastewater. A comparative study conducted by the same process with ceramsite as packing material under the same conditions showed that a MZF system with a Fe proportion in the packing material performed better in chemical oxygen demand (COD) removal (average 91.5%), ammonia (NH4(+)-N) removal (average 98.3%), total nitrogen (TN) removal (average 64.8%) and total phosphorus (TP) removal (average 90%). After treatment of the MZF system, the concentrations of COD, NH4(+)-N, TN and TP in effluent were 20.3 mg/L, 0.5 mg/L, 11.5 mg/L and 0.3 mg/L, respectively. The simultaneously high efficiencies of nitrification, denitrification and phosphorus removal were achieved by the coupling effects of biological and chemical processes in the MZF system. The results of this study showed that the application of MZF might be a favorable choice as packing material in biofilters for treatment of rural domestic wastewater.
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Affiliation(s)
- L T Pan
- Institute of Modern Agricultural Science and Engineering, Tongji University, Shanghai 200092, China E-mail:
| | - Y Han
- Institute of Modern Agricultural Science and Engineering, Tongji University, Shanghai 200092, China E-mail:
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36
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Kim BS, Lee HW, Park SH, Baek K, Jeon JK, Cho HJ, Jung SC, Kim SC, Park YK. Removal of Cu(2+) by biochars derived from green macroalgae. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:985-994. [PMID: 25813639 DOI: 10.1007/s11356-015-4368-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 03/11/2015] [Indexed: 06/04/2023]
Abstract
The by-product char of the fast pyrolysis of a green macroalga Enteromorpha compressa was used to remove copper from an aqueous solution. The surface area and the amount of cation exchange capacity (CEC) were increased by steam activation, resulting in enhanced adsorption capacity. Although chemical activation using a KOH solution increased the pore volume and surface area dramatically, it decreased the adsorption capacity because of activating in the KOH solution and washing decreased CEC. Ion exchange between the Cu ions and cations (Na(+), K(+), Ca(2+), and Mg(2+)) as well as adsorption onto the functional groups on the char surface appeared to be important mechanisms for the removal of Cu. A pseudo-second-order kinetic model and Langmuir isotherm model could interpret the kinetics and equilibrium of the Cu adsorption on the E. compressa char. The maximum amount of Cu adsorption on the char was 137 mg g(-1).
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Affiliation(s)
- Beom-Sik Kim
- School of Environmental Engineering, University of Seoul, Seoul, 130-743, Republic of Korea
| | - Hyung Won Lee
- School of Environmental Engineering, University of Seoul, Seoul, 130-743, Republic of Korea
| | - Sung Hoon Park
- Department of Environmental Engineering, Sunchon National University, Suncheon, 540-950, Republic of Korea
| | - Kitae Baek
- Department of Environmental Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Jong-Ki Jeon
- Department of Chemical Engineering, Kongju National University, Cheonan, 330-717, Republic of Korea
| | - Hye Jung Cho
- School of Environmental Engineering, University of Seoul, Seoul, 130-743, Republic of Korea
| | - Sang-Chul Jung
- Department of Environmental Engineering, Sunchon National University, Suncheon, 540-950, Republic of Korea
| | - Sang Chai Kim
- Department of Environmental Education, Mokpo National University, Muan, 534-729, Republic of Korea
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul, 130-743, Republic of Korea.
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37
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Pawlowski S, Galinha CF, Crespo JG, Velizarov S. 2D fluorescence spectroscopy for monitoring ion-exchange membrane based technologies - Reverse electrodialysis (RED). WATER RESEARCH 2016; 88:184-198. [PMID: 26497936 DOI: 10.1016/j.watres.2015.10.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 10/06/2015] [Indexed: 06/05/2023]
Abstract
Reverse electrodialysis (RED) is one of the emerging, membrane-based technologies for harvesting salinity gradient energy. In RED process, fouling is an undesirable operation constraint since it leads to a decrease of the obtainable net power density due to increasing stack electric resistance and pressure drop. Therefore, early fouling detection is one of the main challenges for successful RED technology implementation. In the present study, two-dimensional (2D) fluorescence spectroscopy was used, for the first time, as a tool for fouling monitoring in RED. Fluorescence excitation-emission matrices (EEMs) of ion-exchange membrane surfaces and of natural aqueous streams were acquired during one month of a RED stack operation. Fouling evolvement on the ion-exchange membrane surfaces was successfully followed by 2D fluorescence spectroscopy and quantified using principal components analysis (PCA). Additionally, the efficiency of cleaning strategy was assessed by measuring the membrane fluorescence emission intensity before and after cleaning. The anion-exchange membrane (AEM) surface in contact with river water showed to be significantly affected due to fouling by humic compounds, which were found to cross through the membrane from the lower salinity (river water) to higher salinity (sea water) stream. The results obtained show that the combined approach of using 2D fluorescence spectroscopy and PCA has a high potential for studying fouling development and membrane cleaning efficiency in ion exchange membrane processes.
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Affiliation(s)
- Sylwin Pawlowski
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Claudia F Galinha
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - João G Crespo
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Svetlozar Velizarov
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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38
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De Almeida Brehm F, de Azevedo JCR, da Costa Pereira J, Burrows HD. Direct estimation of dissolved organic carbon using synchronous fluorescence and independent component analysis (ICA): advantages of a multivariate calibration. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:703. [PMID: 26497563 DOI: 10.1007/s10661-015-4857-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 09/09/2015] [Indexed: 06/05/2023]
Abstract
Dissolved organic carbon (DOC) is frequently used as a diagnostic parameter for the identification of environmental contamination in aqueous systems. Since this organic matter is evolving and decaying over time. If samples are collected under environmental conditions, some sample stabilization process is needed until the corresponding analysis can be made. This may affect the analysis results. This problem can be avoided using the direct determination of DOC. We report a study using in situ synchronous fluorescence spectra, with independent component analysis to retrieve relevant major spectral contributions and their respective component contributions, for the direct determination of DOC. Fluorescence spectroscopy is a very powerful and sensitive technique to evaluate vestigial organic matter dissolved in water and is thus suited for the analytical task of direct monitoring of dissolved organic matter in water, thus avoiding the need for the stabilization step. We also report the development of an accurate calibration model for dissolved organic carbon determinations using environmental samples of humic and fulvic acids. The method described opens the opportunity for a fast, in locus, DOC estimation in environmental or other field studies using a portable fluorescence spectrometer. This combines the benefits of the use of fresh samples, without the need of stabilizers, and also allows the interpretation of various additional spectral contributions based on their respective estimated properties. We show how independent component analysis may be used to describe tyrosine, tryptophan, humic acid and fulvic acid spectra and, thus, to retrieve the respective individual component contribution to the DOC.
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Affiliation(s)
| | - Julio Cesar R de Azevedo
- Department of Chemistry and Biology, Federal Technology University of Paraná, Curitiba, Brazil.
- Rua Deputado Heitor de Alencar Furtado, Universidade Tecnológica Federal do Paraná, n° 4900, Curitiba, Paraná, 81280-340, Brazil.
| | | | - Hugh D Burrows
- Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal
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39
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Ding A, Pronk W, Qu F, Ma J, Li G, Li K, Liang H. Effect of calcium addition on sludge properties and membrane fouling potential of the membrane-coupled expanded granular sludge bed process. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Biechele P, Busse C, Solle D, Scheper T, Reardon K. Sensor systems for bioprocess monitoring. Eng Life Sci 2015. [DOI: 10.1002/elsc.201500014] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Philipp Biechele
- Institute of Technical Chemistry; Leibniz University; Hannover Germany
| | - Christoph Busse
- Institute of Technical Chemistry; Leibniz University; Hannover Germany
| | - Dörte Solle
- Institute of Technical Chemistry; Leibniz University; Hannover Germany
| | - Thomas Scheper
- Institute of Technical Chemistry; Leibniz University; Hannover Germany
| | - Kenneth Reardon
- Department of Chemical and Biological Engineering; Colorado State University; Fort Collins CO USA
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41
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Assaad A, Pontvianne S, Corriou JP, Pons MN. Spectrophotometric characterization of dissolved organic matter in a rural watershed: the Madon River (N-E France). ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:188. [PMID: 25784610 DOI: 10.1007/s10661-015-4422-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 03/04/2015] [Indexed: 06/04/2023]
Abstract
In the last 20 years, increasing dissolved organic carbon (DOC) concentrations have been observed in several rivers and lakes in Europe. This increase has reduced the quality of the aquatic environment. In this study, UV-vis spectroscopy and synchronous fluorescence spectroscopy with a difference of 50 nm between the excitation and emission (SF50) were used to characterize the DOC in a rural river (Madon River). The specific absorbance index at 254 nm (SUVA254) which is related to the aromaticity of DOC was extracted from UV-vis spectra, whose maximum of the second derivative (occurring near 225 nm) is related to nitrates. SF50 spectra which are characterized by well-defined peaks indicated large spatial and temporal variations. Two methods were used to analyze and compare these spectra. The first method was based on the decomposition of the SF50 spectra into four Gauss functions: B1 (related to tryptophan-like fluorescence), B2 and B3 (related to humic substances), and B4 (related to chlorophyll-like substances). The second method was principal components analysis (PCA), which results yielded three principal components that accounted for 95% of the variance. Although PCA enables the consideration of the spectra without making assumptions regarding the number of fluorophores, the results from the decomposition in Gauss function were easier to interpret.
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Affiliation(s)
- Aziz Assaad
- Laboratoire Réactions et Génie des Procédés, UMR CNRS 7274, Université de Lorraine, 1 rue Grandville, BP 20451, 54001, Nancy Cedex, France
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42
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Artificial neural network associated to UV/Vis spectroscopy for monitoring bioreactions in biopharmaceutical processes. Bioprocess Biosyst Eng 2015; 38:1045-54. [DOI: 10.1007/s00449-014-1346-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 12/19/2014] [Indexed: 12/13/2022]
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Knapik HG, Fernandes CVS, de Azevedo JCR, do Amaral Porto MF. Applicability of Fluorescence and Absorbance Spectroscopy to Estimate Organic Pollution in Rivers. ENVIRONMENTAL ENGINEERING SCIENCE 2014; 31:653-663. [PMID: 25469076 PMCID: PMC4245836 DOI: 10.1089/ees.2014.0064] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 08/13/2014] [Indexed: 05/18/2023]
Abstract
This article explores the applicability of fluorescence and absorbance spectroscopy for estimating organic pollution in polluted rivers. The relationship between absorbance, fluorescence intensity, dissolved organic carbon, biochemical oxygen demand (BOD), chemical oxygen demand (COD), and other water quality parameters were used to characterize and identify the origin and the spatial variability of the organic pollution in a highly polluted watershed. Analyses were performed for the Iguassu River, located in southern Brazil, with area about 2,700 km2 and ∼3 million inhabitants. Samples were collect at six monitoring sites covering 107 km of the main river. BOD, COD, nitrogen, and phosphorus concentration indicates a high input of sewage to the river. Specific absorbance at 254 and 285 nm (SUVA254 and A285/COD) did not show significant variation between sites monitored, indicating the presence of both dissolved compounds found in domestic effluents and humic and fulvic compounds derived from allochthonous organic matter. Correlations between BOD and tryptophan-like fluorescence peak (peak T2, r=0.7560, and peak T1, r=0.6949) and tyrosine-like fluorescence peak (peak B, r=0.7321) indicated the presence of labile organic matter and thus confirmed the presence of sewage in the river. Results showed that fluorescence and absorbance spectroscopy provide useful information on pollution in rivers from critical watersheds and together are a robust method that is simpler and more rapid than traditional methods employed by regulatory agencies.
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Affiliation(s)
- Heloise Garcia Knapik
- Department of Hydraulic and Sanitation, Centro Politecnico, Federal University of Parana, Curitiba, Brazil
- Corresponding author: Department of Hydraulic and Sanitation, Centro Politecnico, Federal University of Parana, Bl. 5, Av. Cel Francisco H. do Santos, s/n, Curitiba 81531-990, Parana, Brazil.Phone: 5541 33613707; Fax: 5541 33613143; E-mail:
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Ding A, Liang H, Qu F, Bai L, Li G, Ngo HH, Guo W. Effect of granular activated carbon addition on the effluent properties and fouling potentials of membrane-coupled expanded granular sludge bed process. BIORESOURCE TECHNOLOGY 2014; 171:240-246. [PMID: 25203232 DOI: 10.1016/j.biortech.2014.08.080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 08/14/2014] [Accepted: 08/17/2014] [Indexed: 06/03/2023]
Abstract
To mitigate membrane fouling of membrane-coupled anaerobic process, granular activated carbon (GAC: 50 g/L) was added into an expanded granular sludge bed (EGSB). A short-term ultrafiltration test was investigated for analyzing membrane fouling potential and underlying fouling mechanisms. The results showed that adding GAC into the EGSB not only improved the COD removal efficiency, but also alleviated membrane fouling efficiently because GAC could help to reduce soluble microbial products, polysaccharides and proteins by 26.8%, 27.8% and 24.7%, respectively, compared with the control system. Furthermore, excitation emission matrix (EEM) fluorescence spectroscopy analysis revealed that GAC addition mainly reduced tryptophan protein-like, aromatic protein-like and fulvic-like substances. In addition, the resistance distribution analysis demonstrated that adding GAC primarily decreased the cake layer resistance by 53.5%. The classic filtration mode analysis showed that cake filtration was the major fouling mechanism for membrane-coupled EGSB process regardless of the GAC addition.
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Affiliation(s)
- An Ding
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China.
| | - Fangshu Qu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Langming Bai
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Huu Hao Ngo
- Faculty of Engineering, University of Technology, P.O. Box 123, Broadway, Sydney, NSW 2007, Australia
| | - Wenshan Guo
- Faculty of Engineering, University of Technology, P.O. Box 123, Broadway, Sydney, NSW 2007, Australia
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Fang F, Lu WT, Shan Q, Cao JS. Characteristics of extracellular polymeric substances of phototrophic biofilms at different aquatic habitats. Carbohydr Polym 2014; 106:1-6. [DOI: 10.1016/j.carbpol.2014.02.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 01/23/2014] [Accepted: 02/05/2014] [Indexed: 01/25/2023]
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Assaad A, Pontvianne S, Pons MN. Photodegradation-based detection of fluorescent whitening agents in a mountain river. CHEMOSPHERE 2014; 100:27-33. [PMID: 24461430 DOI: 10.1016/j.chemosphere.2013.12.095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/02/2013] [Accepted: 12/22/2013] [Indexed: 06/03/2023]
Abstract
Fluorescent whitening agents (FWAs) are highly soluble and poorly biodegradable ingredients used in laundry detergents and in industries (paper, textile, plastic manufacturing). They are likely to pass through biological wastewater treatment systems. The presence of FWAs in a mountain river was detected by monitoring the decay of synchronous fluorescence intensity at λ(ex)=360 nm after exposing samples to ultraviolet (UV) light (365 nm), for mimicking sunlight, for 15 min. The method was first validated on four commercial FWAs (DAS-1, FB28, DMA-X and CBS-X) in different water matrices (deionized water and pristine river water in the presence of humic acid and dyes). A 40% decay was observed after 15 min for the least photosensitive FWA (CBS-X). A field application was then performed on samples collected along a mountain river in which impacts of FWAs from domestic sources (laundry greywater) and industrial sources (paper and textile mills) were suspected. Variations of fluorescence decay at λ(ex)=360 nm could be explained by these potential sources of pollution. It is suggested that the fluorescence decay at λ(ex)=280 nm also be considered as an indicator, as some FWAs can exhibit fluorescence at that excitation wavelength.
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Affiliation(s)
- Aziz Assaad
- Laboratoire Réactions et Génie des Procédés, UMR CNRS 7274, Université de Lorraine, 1 rue Grandville BP 20451, 54001 Nancy cedex, France
| | - Steve Pontvianne
- Laboratoire Réactions et Génie des Procédés, UMR CNRS 7274, Université de Lorraine, 1 rue Grandville BP 20451, 54001 Nancy cedex, France
| | - Marie-Noëlle Pons
- Laboratoire Réactions et Génie des Procédés, UMR CNRS 7274, Université de Lorraine, 1 rue Grandville BP 20451, 54001 Nancy cedex, France.
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Calvet A, Li B, Ryder AG. A rapid fluorescence based method for the quantitative analysis of cell culture media photo-degradation. Anal Chim Acta 2014; 807:111-9. [DOI: 10.1016/j.aca.2013.11.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 10/31/2013] [Accepted: 11/14/2013] [Indexed: 10/26/2022]
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Leme J, Fernández Núñez EG, de Almeida Parizotto L, Chagas WA, dos Santos ES, Caricati ATP, de Rezende AG, da Costa BLV, Monteiro DCV, Boldorini VLL, Jorge SAC, Astray RM, Pereira CA, Caricati CP, Tonso A. A multivariate calibration procedure for UV/VIS spectrometric monitoring of BHK-21 cell metabolism and growth. Biotechnol Prog 2013; 30:241-8. [DOI: 10.1002/btpr.1847] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jaci Leme
- Laboratório Especial de Pesquisa e Desenvolvimento em Imunológicos Veterinários, Instituto Butantan. Av. Vital Brasil, 1500; Butantã 05503-900 São Paulo SP-Brazil
| | - Eutimio Gustavo Fernández Núñez
- Dept. de Engenharia Química, Laboratório de Células Animais, Escola Politécnica; Universidade de São Paulo. Av. Prof. Luciano Gualberto; trav. 3, 380, Butantã 05508-900 São Paulo SP-Brazil
- Dept. de Ciências Biológicas; Universidade Estadual Paulista “Júlio de Mesquita Filho” Campus-Assis, Avenida Dom Antonio 2100, Bairro Parque Universitário; 19806-900 Assis SP - Brasil
| | - Letícia de Almeida Parizotto
- Dept. de Engenharia Química, Laboratório de Células Animais, Escola Politécnica; Universidade de São Paulo. Av. Prof. Luciano Gualberto; trav. 3, 380, Butantã 05508-900 São Paulo SP-Brazil
| | - Wagner Antonio Chagas
- Laboratório Especial de Pesquisa e Desenvolvimento em Imunológicos Veterinários, Instituto Butantan. Av. Vital Brasil, 1500; Butantã 05503-900 São Paulo SP-Brazil
| | - Erica Salla dos Santos
- Laboratório Especial de Pesquisa e Desenvolvimento em Imunológicos Veterinários, Instituto Butantan. Av. Vital Brasil, 1500; Butantã 05503-900 São Paulo SP-Brazil
| | - Aline Tojeira Prestia Caricati
- Laboratório Especial de Pesquisa e Desenvolvimento em Imunológicos Veterinários, Instituto Butantan. Av. Vital Brasil, 1500; Butantã 05503-900 São Paulo SP-Brazil
| | | | - Bruno Labate Vale da Costa
- Dept. de Engenharia Química, Laboratório de Células Animais, Escola Politécnica; Universidade de São Paulo. Av. Prof. Luciano Gualberto; trav. 3, 380, Butantã 05508-900 São Paulo SP-Brazil
- Laboratório de Biotecnologia Industrial, Núcleo de Bionanomanufatura; Instituto de Pesquisas Tecnológicas do Estado de São Paulo, Av. Prof. Almeida Prado 532 Cid. Universitária - Butantã; 05508-901 São Paulo SP-Brazil
| | | | - Vera Lucia Lopes Boldorini
- Laboratório de Imunologia Viral; Instituto Butantan. Av. Vital Brasil; 1500 Butantã 05503-900 São Paulo SP-Brazil
| | - Soraia Attie Calil Jorge
- Laboratório de Imunologia Viral; Instituto Butantan. Av. Vital Brasil; 1500 Butantã 05503-900 São Paulo SP-Brazil
| | - Renato Mancini Astray
- Laboratório de Imunologia Viral; Instituto Butantan. Av. Vital Brasil; 1500 Butantã 05503-900 São Paulo SP-Brazil
| | - Carlos Augusto Pereira
- Dept. de Engenharia Química, Laboratório de Células Animais, Escola Politécnica; Universidade de São Paulo. Av. Prof. Luciano Gualberto; trav. 3, 380, Butantã 05508-900 São Paulo SP-Brazil
- Laboratório de Imunologia Viral; Instituto Butantan. Av. Vital Brasil; 1500 Butantã 05503-900 São Paulo SP-Brazil
| | - Celso Pereira Caricati
- Laboratório Especial de Pesquisa e Desenvolvimento em Imunológicos Veterinários, Instituto Butantan. Av. Vital Brasil, 1500; Butantã 05503-900 São Paulo SP-Brazil
| | - Aldo Tonso
- Dept. de Engenharia Química, Laboratório de Células Animais, Escola Politécnica; Universidade de São Paulo. Av. Prof. Luciano Gualberto; trav. 3, 380, Butantã 05508-900 São Paulo SP-Brazil
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Monitoring Urban Wastewaters’ Characteristics by Visible and Short Wave Near-Infrared Spectroscopy. WATER 2013. [DOI: 10.3390/w5042026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li M, Liu Q, Guo L, Zhang Y, Lou Z, Wang Y, Qian G. Cu(II) removal from aqueous solution by Spartina alterniflora derived biochar. BIORESOURCE TECHNOLOGY 2013; 141:83-88. [PMID: 23317555 DOI: 10.1016/j.biortech.2012.12.096] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 12/12/2012] [Accepted: 12/13/2012] [Indexed: 05/27/2023]
Abstract
A cost-effective biochar (SABC) was prepared from Spartina alterniflora by pyrolysis at low temperatures (≤ 500 °C) under anoxic conditions. The obtained biochar was examined for its ability to adsorb copper ions from aqueous solution and the Cu(II) removal mechanisms were explored. Cu(II) adsorption on SABC was found to fit well with Langmuir isotherm and pseudo-second-order kinetic model. The maximum Cu(II) adsorption capacity of SABC reached 48.49 mg g(-1), which is about 5 times higher than the raw biomass. Ion exchange had negligible effect on Cu(II) removal. Based on FTIR spectra and potentiometric titration, a complexation model including two acidic and one basic functional groups was proposed. However, metal ions complexation with the surface sites could not account for the uptake amounts of Cu(II) by SABC, alternative binding mechanisms might involve simultaneously.
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Affiliation(s)
- Mi Li
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, China
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