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Dahiya M, Islam DT, Srivastava P, Sreekrishnan TR, Mishra S. Detoxification and decolorization of complex textile effluent in an enzyme membrane reactor: batch and continuous studies. Front Microbiol 2023; 14:1193875. [PMID: 37485538 PMCID: PMC10361525 DOI: 10.3389/fmicb.2023.1193875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
There is an urgent need to look for bio-based technologies to address the pollution related to textile dyes in waterbodies. The aim of this study was to evaluate an engineered laccase variant, LCC1-62 of Cyathus bulleri, expressed in recombinant Pichia pastoris, for the decolorization and detoxification of real textile effluent. The partially purified laccase effectively (~60-100%) decolorized combined effluent from different dyeing units at a laccase concentration of 500 U/L at a 50-mL level. Decolorization and detoxification of the combined effluents, from a local textile mill, were evaluated at 0.3 L volumetric level in a ray-flow membrane reactor in batch and continuous modes of operation. In batch studies, maximum decolorization of 97% and detoxification of 96% occurred at a hydraulic retention time (HRT) of 6 h without any additional laccase requirement. In continuous studies, the reactor was operated at an HRT of 6 h with a lower enzyme dosage (~120 U/L of the effluent). Decolorization was accompanied by a loss in laccase activity which was restored to ~120 U/L by the addition of laccase in two regimes. The addition of laccase, when the residual laccase activity decreased to 40% (~50 U/L), resulted in high decolorization (~5 ppm residual dye concentration) and low variance (σ2) of 2.77, while laccase addition, when the residual dye concentration decreased to ~8% (~10 U/L), resulted in an average dye concentration of 13 ppm with a high variance of 62.08. The first regime was implemented, and the continuous reactor was operated for over 80 h at an HRT of 3 and 6 h, with the latter resulting in ~95% decolorization and 96% reduction in the mutagenicity of the effluent. Less than 10% membrane fouling was observed over long operations of the reactor. The findings strongly suggest the feasibility of using LCC1-62 in an enzyme membrane reactor for large-scale treatment of textile effluents.
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Effects of reducing, stabilizing, and antibiotic agents on "Candidatus Kuenenia stuttgartiensis". Appl Microbiol Biotechnol 2023; 107:1829-1843. [PMID: 36752812 PMCID: PMC10006275 DOI: 10.1007/s00253-023-12375-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 02/09/2023]
Abstract
Anaerobic ammon ium oxidizing (anammox) bacteria oxidize ammonium and reduce nitrite, producing N2, and could play a major role in energy-optimized wastewater treatment. However, sensitivity to various environmental conditions and slow growth currently hinder their wide application. Here, we attempted to determine online the effect of environmental stresses on anammox bacteria by using an overnight batch activity test with whole cells, in which anammox activity was calculated by quantifying N2 production via headspace-pressure monitoring. A planktonic mixed culture dominated by "Candidatus Kuenenia stuttgartiensis" strain CSTR1 was cultivated in a 30-L semi-continuous stirring tank reactor. In overnight resting-cell anammox activity tests, oxygen caused strong inhibition of anammox activity, which was reversed by sodium sulfite (30 µM). The tested antibiotics sulfamethoxazole, kanamycin, and ciprofloxacin elicited their effect on a dose-dependent manner; however, strain CSTR1 was highly resistant to sulfamethoxazole. Anammox activity was improved by activated carbon and Fe2O3. Protein expression analysis from resting cells after anammox activity stimulation revealed that NapC/NirT family cytochrome c (KsCSTR_12840), hydrazine synthase, hydrazine dehydrogenase, hydroxylamine oxidase, and nitrate:nitrite oxidoreductase were upregulated, while a putative hydroxylamine oxidoreductase HAO (KsCSTR_49490) was downregulated. These findings contribute to the growing knowledge on anammox bacteria physiology, eventually leading to the control of anammox bacteria growth and activity in real-world application. KEY POINTS: • Sulfite additions can reverse oxygen inhibition of the anammox process • Anammox activity was improved by activated carbon and ferric oxide • Sulfamethoxazole marginally affected anammox activity.
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Tian Q, Zhang Y, Meng D, Zhai L, Shen Y, You C, Guan Z, Liao X. Simultaneous removal of tetracycline and sulfamethoxazole by laccase-mediated oxidation and ferrate(VI) oxidation: the impact of mediators and metal ions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:15708-15721. [PMID: 36171319 DOI: 10.1007/s11356-022-23232-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
This study explores the impact of mediators and metal ions of laccase-mediated oxidation and ferrate(VI) oxidation for the simultaneous removal of tetracycline antibiotics (TCs) and sulfonamide antibiotics (SAs) and to effectively remove their antimicrobial activity. The results showed that the antimicrobial activity of tetracycline against Bacillus altitudinis and Escherichia coli was significantly reduced, and the antimicrobial activity of sulfamethoxazole against B. altitudinis disappeared completely after treatment with the laccase-ABTS system. The combination of 6.0 U/mL of laccase and 0.2 mmol/L of ABTS removed 100% of 20.0 mg/L of tetracycline after 1.0 min at pH 6.0 and 25.0 °C, whereas the removal ratio of 20.0 mg/L of sulfamethoxazole was only 6.7%. The Al3+ and Cu2+ ions promoted the oxidation, and the Mn2+ ion decelerated the oxidation of tetracycline and sulfamethoxazole by the laccase-mediator systems. In contrast, the antimicrobial activity of tetracycline against B. altitudinis and E. coli was shown to be significantly reduced, and the sulfamethoxazole still retained high antimicrobial activity against B. altitudinis after treatment with Fe(VI) oxidation. The removal ratio of 20.0 mg/L of tetracycline was 100% after 1.0 min of treatment with 982.0 mg/L of K2FeO4 at pH 6.0 and 25.0 °C, whereas the removal ratio of 20.0 mg/L of sulfamethoxazole was only 49.5%. The Al3+, Cu2+, and Mn2+ ions both decelerated the oxidation of tetracycline and sulfamethoxazole by Fe(VI) oxidation. In general, the combination of the laccase-ABTS system and Fe(VI) was proposed for the simultaneous treatment of TCs and SAs in wastewater and to effectively remove their antimicrobial activity.
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Affiliation(s)
- Qiaopeng Tian
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
- College of Biology and Environmental Sciences, Jishou University, Jishou, 416000, People's Republic of China
| | - Yong Zhang
- Department of Chemical and Biological Engineering, Hunan University of Science and Technology, Yongzhou 425199, Hunan, People's Republic of China
| | - Di Meng
- School of Biotechnology and Food, Shangqiu Normal University, Shangqiu, 476000, Henan, People's Republic of China
| | - Lixin Zhai
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Yu Shen
- School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Cuiping You
- School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Zhengbing Guan
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Xiangru Liao
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China.
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Taheri M, Fallah N, Nasernejad B. Comparison of high-concentration azo dye removal by long HRT in MSBRs' bioaugmented with GAC and sponge media. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:1201-1215. [PMID: 35915305 DOI: 10.1007/s11356-022-22055-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
The present study assessed the performance and fouling of adding granular activated carbon (GAC) and sponge (BioCube), as two different media, to a membrane sequencing batch reactor (MSBR) system in wastewater treatment containing Acid Red 18 (AR 18). Anaerobic phase, aerobic phase, and hydraulic retention times (HRTs) of 24 h, 12 h, and 72 h were considered for 500 mg/L AR 18 removal at a sludge retention time (SRT) of 20 days by separately adding up to 35% BioCube volume and 8 g/L GAC to the reactors. Based on the kinetic study, 63 mg/L (87% removal) and 115 mg/L (77% removal) remaining dye were reported in the GAC and BioCube membrane sequencing batch reactors (GAC-MSBR and BioCube-MSBR), respectively. A gradual oxidation-reduction potential decline toward -416 mV confirmed better dye removal in GAC-MSBR than BioCube-MSBR, observing a sudden drop to -354 mV. The morphology can explain better biological treatment in GAC-MSBR in addition to the adsorption process. Soluble microbial products (SMPs) of 126.92 mg/L and 395.18 mg/L were obtained for GAC-MSBR and BioCube-MSBR, respectively. Chemical oxygen demand (COD) and SMP indicated that the GAC-MSBR water quality is better than that of the other reactor.
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Affiliation(s)
- Mahsa Taheri
- Civil and Environmental Engineering Department, Amirkabir University of Technology (AUT), Hafez Ave., Tehran, 15875-4413, Iran
| | - Narges Fallah
- Chemical Engineering Department, Amirkabir University of Technology (AUT), Hafez Ave., Tehran, 15875-4413, Iran.
| | - Bahram Nasernejad
- Chemical Engineering Department, Amirkabir University of Technology (AUT), Hafez Ave., Tehran, 15875-4413, Iran
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Wu D, Li X, Zhang Y, Alfred M, Yang H, Li Z, Huang F, Lv P, Feng Q, Wei Q. Strong and robust cellulose-based enzymatic membrane with gradient porous structure in dynamically catalytic removal of sulfonamides antibiotics. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129676. [PMID: 36104904 DOI: 10.1016/j.jhazmat.2022.129676] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 07/11/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Enzyme membrane systems (EMS) have generated considerable interest because of their advantages of accelerating reactions, eliminating product inhibition, and enhancing conversion rates. However, there are deficiencies in the efficient fabrication of affinity carrier membranes and dynamic catalytic separation properties. Herein, a strong and highly flexible spunlaced viscose/bacterial cellulose (BC) composite membrane in situ embedded with graphene oxide (GO) was developed by combining a scalable bio-synthesis method with atom transfer radical polymerization technology. Notably, the layer-by-layer growth of BC on composite film and the addition of GO resulted in an entangled network with strong hydrogen bonding, endowing the resulting membrane with superior mechanical properties and flexibility, while facilitating a gradient structure and porous transport channels. Subsequently, a novel and highly efficient EMS was constructed by using abundant molecular brushes on composite membrane as immobilized enzyme carrier. The resulting EMS exhibited a high throughput (2.17 L/min*m2) and an interception rate (98.64%) in dynamic catalytic sulfonamide antibiotic wastewater activated with syringaldehyde mediator. Meanwhile, the removal rates of sulphapyridine and sulfamethazine were 97.20% and 94.78% under 0.14 MPa and 15 min, respectively. This efficient and scalable manufacturing strategy is of great significance and may pave a novel pathway for antibiotics wastewater treatment and recycling.
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Affiliation(s)
- Dingsheng Wu
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China; Key Laboratory of Textile Fabrics, College of Textiles and Clothing, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Xin Li
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yanan Zhang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Mensah Alfred
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Hanrui Yang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhuquan Li
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fenglin Huang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Pengfei Lv
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Quan Feng
- Key Laboratory of Textile Fabrics, College of Textiles and Clothing, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Qufu Wei
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China.
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Abstract
The accumulation of waste and toxic compounds has become increasingly harmful to the environment and human health. In this context, the use of laccases has become a focus of interest, due to the properties of these versatile enzymes: low substrate specificity, and water formation as a non-toxic end product. Thus, we begin our study with a general overview of the importance of laccase for the environment and industry, starting with the sources of laccases (plant, bacterial and fungal laccases), the structure and mechanism of laccases, microbial biosynthesis, and the immobilization of laccases. Then, we continue with an overview of agro-waste treatment by laccases wherein we observe the importance of laccases for the biodisponibilization of substrates and the biodegradation of agro-industrial byproducts; we then show some aspects regarding the degradation of xenobiotic compounds, dyes, and pharmaceutical products. The objective of this research is to emphasize and fully investigate the effects of laccase action on the decomposition of lignocellulosic materials and on the removal of harmful compounds from soil and water, in order to provide a sustainable solution to reducing environmental pollution.
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Adeola AO, Ore OT, Fapohunda O, Adewole AH, Akerele DD, Akingboye AS, Oloye FF. Psychotropic Drugs of Emerging Concerns in Aquatic Systems: Ecotoxicology and Remediation Approaches. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00334-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Insoluble carbonaceous materials as electron shuttles enhance the anaerobic/anoxic bioremediation of redox pollutants: Recent advances. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Adamian Y, Lonappan L, Alokpa K, Agathos SN, Cabana H. Recent Developments in the Immobilization of Laccase on Carbonaceous Supports for Environmental Applications - A Critical Review. Front Bioeng Biotechnol 2021; 9:778239. [PMID: 34938721 PMCID: PMC8685458 DOI: 10.3389/fbioe.2021.778239] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/11/2021] [Indexed: 11/25/2022] Open
Abstract
Τhe ligninolytic enzyme laccase has proved its potential for environmental applications. However, there is no documented industrial application of free laccase due to low stability, poor reusability, and high costs. Immobilization has been considered as a powerful technique to enhance laccase's industrial potential. In this technology, appropriate support selection for laccase immobilization is a crucial step since the support could broadly affect the properties of the resulting catalyst system. Through the last decades, a large variety of inorganic, organic, and composite materials have been used in laccase immobilization. Among them, carbon-based materials have been explored as a support candidate for immobilization, due to their properties such as high porosity, high surface area, the existence of functional groups, and their highly aromatic structure. Carbon-based materials have also been used in culture media as supports, sources of nutrients, and inducers, for laccase production. This study aims to review the recent trends in laccase production, immobilization techniques, and essential support properties for enzyme immobilization. More specifically, this review analyzes and presents the significant benefits of carbon-based materials for their key role in laccase production and immobilization.
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Affiliation(s)
- Younes Adamian
- Université de Sherbrooke Water Research Group, Department of Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Linson Lonappan
- Université de Sherbrooke Water Research Group, Department of Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Komla Alokpa
- Université de Sherbrooke Water Research Group, Department of Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Spiros N. Agathos
- Laboratory of Bioengineering, Earth and Life Institute, Catholic University of Louvain, Louvain-la-Neuve, Belgium
| | - Hubert Cabana
- Université de Sherbrooke Water Research Group, Department of Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada
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Zhang J, Li F, Wang R, Tan X, Hagedoorn PL. Dialysis membrane enclosed laccase catalysis combines a controlled conversion rate and recyclability without enzyme immobilization. AMB Express 2020; 10:19. [PMID: 31993852 PMCID: PMC6987272 DOI: 10.1186/s13568-020-0955-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 01/11/2020] [Indexed: 11/29/2022] Open
Abstract
Laccase is a versatile multicopper oxidase that holds great promise for many biotechnological applications. For such applications, it is essential to explore good biocatalytic systems for high activity and recyclability. The feasibility of membrane enclosed enzymatic catalysis (MEEC) for enzyme recycling with laccase was evaluated. The dialysis membrane enclosed laccase catalysis (DMELC) was tested for the conversion of the non-phenolic model substrate 2,2′-Azino-bis(3-ethylbenzthiazoline-6-sulfonate) (ABTS). Trametes versicolor laccase was found to be completely retained by the dialysis membrane during the process. The ABTS total conversion after DMELC reached the same values as the batch reaction of the enzyme in solution. The efficiency of DMELC conversion of ABTS under different process conditions including shaking speed, temperature, ABTS concentration and pH was investigated. The repetitive dialysis minimally affected the activity and the protein content of the enclosed laccase. DMELC retained 70.3 ± 0.8% of its initial conversion after 5 cycles. The usefulness of MEEC extends to other enzymes with the benefit of superior activity of an enzyme in solution and the recyclability which is normally only obtained with immobilized enzymes.![]()
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Zdarta J, Jankowska K, Wyszowska M, Kijeńska-Gawrońska E, Zgoła-Grześkowiak A, Pinelo M, Meyer AS, Moszyński D, Jesionowski T. Robust biodegradation of naproxen and diclofenac by laccase immobilized using electrospun nanofibers with enhanced stability and reusability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109789. [DOI: 10.1016/j.msec.2019.109789] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 05/10/2019] [Accepted: 05/23/2019] [Indexed: 01/27/2023]
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Chen X, Zhou Q, Liu F, Peng Q, Teng P. Removal of nine pesticide residues from water and soil by biosorption coupled with degradation on biosorbent immobilized laccase. CHEMOSPHERE 2019; 233:49-56. [PMID: 31163308 DOI: 10.1016/j.chemosphere.2019.05.144] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 03/28/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Biosorbents prepared with peanut shell and wheat straw were act as supports for the immobilization of Aspergillus laccase, and the redox mediator syringaldehyde (SA) was used to improve laccase-catalyzed degradation of nine pesticide residues, including isoproturon, atrazine, prometryn, mefenacet, penoxsulam, nitenpyram, prochloraz, pyrazosulfuron-ethyl and bensulfuron-methyl. Pesticides in water and soil samples were effectively removed via biosorbent concentration and subsequent immobilized laccase degradation on peanut shell or wheat straw supports. The Langmuir equation and Freundlich equation described the biosorption isotherms of the nine pesticides. Parameters that affect the degradation was also investigated. With concentration of pesticides and SA of 6.0 mg L-1 and 1 mmol L-1, over 54.5% and 65.9% of pesticides were removed in water in 3 days with a biosorbent immobilized laccase dose of 25 g L-1 for peanut shell immobilized laccase and wheat straw immobilized laccase, respectively. In the treatment of pesticide in soil with a biosorbent dose of 50 g (kg soil)-1, with the maximum degradation rates ranged from 20.9 to 92.9% and 14.7-92.0% in 7 days for peanut shell immobilized laccase and wheat straw immobilized laccase, respectively. Therefore, laccase immobilized on biomass materials has a strong potential for the effective removal of pesticide pollutants from water and soil by biosorption coupled with degradation.
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Affiliation(s)
- Xiaochu Chen
- College of Science, China Agricultural University, Beijing, 100193, China
| | - Qizhen Zhou
- College of Science, China Agricultural University, Beijing, 100193, China
| | - Fengmao Liu
- College of Science, China Agricultural University, Beijing, 100193, China.
| | - Qingrong Peng
- College of Science, China Agricultural University, Beijing, 100193, China
| | - Peipei Teng
- College of Science, China Agricultural University, Beijing, 100193, China
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The Use of Algae and Fungi for Removal of Pharmaceuticals by Bioremediation and Biosorption Processes: A Review. WATER 2019. [DOI: 10.3390/w11081555] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The occurrence and fate of pharmaceuticals in the aquatic environment is recognized as one of the emerging issues in environmental chemistry. Conventional wastewater treatment plants (WWTPs) are not designed to remove pharmaceuticals (and their metabolites) from domestic wastewaters. The treatability of pharmaceutical compounds in WWTPs varies considerably depending on the type of compound since their biodegradability can differ significantly. As a consequence, they may reach the aquatic environment, directly or by leaching of the sludge produced by these facilities. Currently, the technologies under research for the removal of pharmaceuticals, namely membrane technologies and advanced oxidation processes, have high operation costs related to energy and chemical consumption. When chemical reactions are involved, other aspects to consider include the formation of harmful reaction by-products and the management of the toxic sludge produced. Research is needed in order to develop economic and sustainable treatment processes, such as bioremediation and biosorption. The use of low-cost materials, such as biological matrices (e.g., algae and fungi), has advantages such as low capital investment, easy operation, low operation costs, and the non-formation of degradation by-products. An extensive review of existing research on this subject is presented.
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Alharbi SK, Nghiem LD, van de Merwe JP, Leusch FDL, Asif MB, Hai FI, Price WE. Degradation of diclofenac, trimethoprim, carbamazepine, and sulfamethoxazole by laccase from Trametes versicolor: Transformation products and toxicity of treated effluent. BIOCATAL BIOTRANSFOR 2019. [DOI: 10.1080/10242422.2019.1580268] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Sultan K. Alharbi
- Strategic Water Infrastructure Laboratory, School of Chemistry, University of Wollongong, Wollongong, NSW, Australian
- Department of Chemistry, Taibah University, Madinah, Saudi Arabia
| | - Long D. Nghiem
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, Australia
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS, Australia
| | - Jason P. van de Merwe
- Australian Rivers Institute and School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Frederic D. L. Leusch
- Australian Rivers Institute and School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Muhammad B. Asif
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, Australia
| | - Faisal I. Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, Australia
| | - William E. Price
- Strategic Water Infrastructure Laboratory, School of Chemistry, University of Wollongong, Wollongong, NSW, Australian
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Parra Guardado AL, Belleville MP, Rostro Alanis MDJ, Parra Saldivar R, Sanchez-Marcano J. Effect of redox mediators in pharmaceuticals degradation by laccase: A comparative study. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.12.032] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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16
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Wen-qiong W, Xiao-feng Z. Optimization of transglutaminase (TG) immobilization on the surface of polyethersulfone ultrafiltration membrane and its characteristics in a membrane reactor. J Biotechnol 2018; 287:41-51. [DOI: 10.1016/j.jbiotec.2018.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/06/2018] [Accepted: 10/07/2018] [Indexed: 12/12/2022]
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17
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Gu Y, Huang J, Zeng G, Shi L, Shi Y, Yi K. Fate of pharmaceuticals during membrane bioreactor treatment: Status and perspectives. BIORESOURCE TECHNOLOGY 2018; 268:733-748. [PMID: 30149910 DOI: 10.1016/j.biortech.2018.08.029] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/07/2018] [Accepted: 08/09/2018] [Indexed: 06/08/2023]
Abstract
Pharmaceuticals in surface waters and wastewater treatment plants (WWTPs) as emerging pollutants have become a major concern. In comparison with other wastewater treatments, removal of pharmaceuticals in MBR has received much attention. This review presents the source and occurrence of pharmaceuticals in WWTPs influents. Experimental studies related to the removal of pharmaceuticals during MBR treatment, key affecting factors (including the different stages of MBR process configuration and the process parameters), and the underlying mechanisms proposed to explain the biodegradation and adsorption behaviors, have been comprehensively discussed. Several transformation products of pharmaceuticals are also reviewed in this paper. Furthermore, further research is needed to gain more information about the multiple influence factors of the pharmaceuticals elimination, appropriate methods for promoting pharmaceuticals elimination, more essential removal pathways, effect of pharmaceuticals on membrane fouling, and the detection and analysis of transformation products.
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Affiliation(s)
- Yanling Gu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China
| | - Lixiu Shi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China
| | - Yahui Shi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China
| | - Kaixin Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China
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18
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Asif MB, Hai FI, Dhar BR, Ngo HH, Guo W, Jegatheesan V, Price WE, Nghiem LD, Yamamoto K. Impact of simultaneous retention of micropollutants and laccase on micropollutant degradation in enzymatic membrane bioreactor. BIORESOURCE TECHNOLOGY 2018; 267:473-480. [PMID: 30036848 DOI: 10.1016/j.biortech.2018.07.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/30/2018] [Accepted: 07/12/2018] [Indexed: 06/08/2023]
Abstract
This study systematically compares the performance of ultrafiltration (UF) and nanofiltration (NF) based enzymatic membrane bioreactors (EMBRs) for the degradation of five micropollutants, namely atrazine, carbamazepine, sulfamethoxazole, diclofenac and oxybenzone to elucidate the impact of effective membrane retention of micropollutants on their degradation. Based on the permeate quality, NF-EMBR achieved 92-99.9% micropollutant removal (i.e., biodegradation + membrane retention), while the removal of these micropollutants by UF-EMBR varied from 20 to 85%. Mass balance analysis revealed that micropollutant degradation was improved by 15-30% in NF-EMBR as compared to UF-EMBR, which could be attributed to the prolonged contact time between laccase and micropollutants following their effective retention by the NF membrane. A small decline in permeate flux was observed during EMBR operation. However, the flux could be recovered by flushing the membrane with permeate.
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Affiliation(s)
- Muhammad B Asif
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
| | - Bipro R Dhar
- Department of Civil and Environmental Engineering, School of Mining & Petroleum Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Huu H Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | | | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Long D Nghiem
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Kazuo Yamamoto
- Environmental Science Centre, Department of Urban Engineering, University of Tokyo, Tokyo 113-0033, Japan
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Stadlmair LF, Letzel T, Drewes JE, Grassmann J. Enzymes in removal of pharmaceuticals from wastewater: A critical review of challenges, applications and screening methods for their selection. CHEMOSPHERE 2018; 205:649-661. [PMID: 29723723 DOI: 10.1016/j.chemosphere.2018.04.142] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/16/2018] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
At present, the removal of trace organic chemicals such as pharmaceuticals in wastewater treatment plants is often incomplete resulting in a continuous discharge into the aqueous environment. To overcome this issue, bioremediation approaches gained significant importance in recent times, since they might have a lower carbon footprint than chemical or physical treatment methods. In this context, enzyme-based technologies represent a promising alternative since they are able to specifically target certain chemicals. For this purpose, versatile monitoring of enzymatic reactions is of great importance in order to understand underlying transformation mechanisms and estimate the suitability of various enzymes exhibiting different specificities for bioremediation purposes. This study provides a comprehensive review, summarizing research on enzymatic transformation of pharmaceuticals in water treatment applications using traditional and state-of-the-art enzyme screening approaches with a special focus on mass spectrometry (MS)-based and high-throughput tools. MS-based enzyme screening represents an approach that allows a comprehensive mechanistic understanding of enzymatic reactions and, in particular, the identification of transformation products. A critical discussion of these approaches for implementation in wastewater treatment processes is also presented. So far, there are still major gaps between laboratory- and field-scale research that need to be overcome in order to assess the viability for real applications.
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Affiliation(s)
- Lara F Stadlmair
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, D-85748, Garching, Germany
| | - Thomas Letzel
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, D-85748, Garching, Germany
| | - Jörg E Drewes
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, D-85748, Garching, Germany
| | - Johanna Grassmann
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, D-85748, Garching, Germany.
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20
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Naghdi M, Taheran M, Brar SK, Kermanshahi-Pour A, Verma M, Surampalli RY. Removal of pharmaceutical compounds in water and wastewater using fungal oxidoreductase enzymes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 234:190-213. [PMID: 29175684 DOI: 10.1016/j.envpol.2017.11.060] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/13/2017] [Accepted: 11/16/2017] [Indexed: 05/26/2023]
Abstract
Due to recalcitrance of some pharmaceutically active compounds (PhACs), conventional wastewater treatment is not able to remove them effectively. Therefore, their occurrence in surface water and potential environmental impact has raised serious global concern. Biological transformation of these contaminants using white-rot fungi (WRF) and their oxidoreductase enzymes has been proposed as a low cost and environmentally friendly solution for water treatment. The removal performance of PhACs by a fungal culture is dependent on several factors, such as fungal species, the secreted enzymes, molecular structure of target compounds, culture medium composition, etc. In recent 20 years, numerous researchers tried to elucidate the removal mechanisms and the effects of important operational parameters such as temperature and pH on the enzymatic treatment of PhACs. This review summarizes and analyzes the studies performed on PhACs removal from spiked pure water and real wastewaters using oxidoreductase enzymes and the data related to degradation efficiencies of the most studied compounds. The review also offers an insight into enzymes immobilization, fungal reactors, mediators, degradation mechanisms and transformation products (TPs) of PhACs. In brief, higher hydrophobicity and having electron-donating groups, such as amine and hydroxyl in molecular structure leads to more effective degradation of PhACs by fungal cultures. For recalcitrant compounds, using redox mediators, such as syringaldehyde increases the degradation efficiency, however they may cause toxicity in the effluent and deactivate the enzyme. Immobilization of enzymes on supports can enhance the performance of enzyme in terms of reusability and stability. However, the immobilization strategy should be carefully selected to reduce the cost and enable regeneration. Still, further studies are needed to elucidate the mechanisms involved in enzymatic degradation and the toxicity levels of TPs and also to optimize the whole treatment strategy to have economical and technical competitiveness.
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Affiliation(s)
- Mitra Naghdi
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - Mehrdad Taheran
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - Satinder Kaur Brar
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada.
| | - Azadeh Kermanshahi-Pour
- Biorefining and Remediation Laboratory, Department of Process Engineering and Applied Science, Dalhousie University, 1360 Barrington Street, Halifax, B3J 1Z1, Nova Scotia, Canada
| | - Mausam Verma
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - R Y Surampalli
- Global Institute for Energy, Environment and Sustainability, P.O. Box 14354, Lenexa, KS 66285, USA
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21
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Cui Z, Wang J, Zhang H, Song L, Jia H, Yang G, Gao F. Influence of selective permeation of backwashing solution on the cleaning effectiveness in hollow fiber system. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Asif MB, Hai FI, Kang J, van de Merwe JP, Leusch FDL, Price WE, Nghiem LD. Biocatalytic degradation of pharmaceuticals, personal care products, industrial chemicals, steroid hormones and pesticides in a membrane distillation-enzymatic bioreactor. BIORESOURCE TECHNOLOGY 2018; 247:528-536. [PMID: 28972906 DOI: 10.1016/j.biortech.2017.09.129] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/17/2017] [Accepted: 09/18/2017] [Indexed: 06/07/2023]
Abstract
Laccase-catalyzed degradation of a broad spectrum of trace organic contaminants (TrOCs) by a membrane distillation (MD)-enzymatic membrane bioreactor (EMBR) was investigated. The MD component effectively retained TrOCs (94-99%) in the EMBR, facilitating their continuous biocatalytic degradation. Notably, the extent of TrOC degradation was strongly influenced by their molecular properties. A significant degradation (above 90%) of TrOCs containing strong electron donating functional groups (e.g., hydroxyl and amine groups) was achieved, while a moderate removal was observed for TrOCs containing electron withdrawing functional groups (e.g., amide and halogen groups). Separate addition of two redox-mediators, namely syringaldehyde and violuric acid, further improved TrOC degradation by laccase. However, a mixture of both showed a reduced performance for a few pharmaceuticals such as primidone, carbamazepine and ibuprofen. Mediator addition increased the toxicity of the media in the enzymatic bioreactor, but the membrane permeate (i.e., final effluent) was non-toxic, suggesting an added advantage of coupling MD with EMBR.
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Affiliation(s)
- Muhammad B Asif
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
| | - Jinguo Kang
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia; Strategic Water Infrastructure Lab, School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Jason P van de Merwe
- Australian Rivers Institute and Griffith School of Environment, Griffith University, QLD 4222, Australia
| | - Frederic D L Leusch
- Australian Rivers Institute and Griffith School of Environment, Griffith University, QLD 4222, Australia
| | - William E Price
- Strategic Water Infrastructure Lab, School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Long D Nghiem
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
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23
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Stadlmair LF, Letzel T, Graßmann J. Monitoring enzymatic degradation of emerging contaminants using a chip-based robotic nano-ESI-MS tool. Anal Bioanal Chem 2017; 410:27-32. [DOI: 10.1007/s00216-017-0729-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 10/25/2017] [Indexed: 01/09/2023]
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24
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Degradation of Trace Organic Contaminants by a Membrane Distillation—Enzymatic Bioreactor. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7090879] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Yang J, Li W, Ng TB, Deng X, Lin J, Ye X. Laccases: Production, Expression Regulation, and Applications in Pharmaceutical Biodegradation. Front Microbiol 2017; 8:832. [PMID: 28559880 PMCID: PMC5432550 DOI: 10.3389/fmicb.2017.00832] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 04/24/2017] [Indexed: 01/08/2023] Open
Abstract
Laccases are a family of copper-containing oxidases with important applications in bioremediation and other various industrial and biotechnological areas. There have been over two dozen reviews on laccases since 2010 covering various aspects of this group of versatile enzymes, from their occurrence, biochemical properties, and expression to immobilization and applications. This review is not intended to be all-encompassing; instead, we highlighted some of the latest developments in basic and applied laccase research with an emphasis on laccase-mediated bioremediation of pharmaceuticals, especially antibiotics. Pharmaceuticals are a broad class of emerging organic contaminants that are recalcitrant and prevalent. The recent surge in the relevant literature justifies a short review on the topic. Since low laccase yields in natural and genetically modified hosts constitute a bottleneck to industrial-scale applications, we also accentuated a genus of laccase-producing white-rot fungi, Cerrena, and included a discussion with regards to regulation of laccase expression.
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Affiliation(s)
- Jie Yang
- Fujian Key Laboratory of Marine Enzyme Engineering, Fuzhou UniversityFujian, China
| | - Wenjuan Li
- Fujian Key Laboratory of Marine Enzyme Engineering, Fuzhou UniversityFujian, China
| | - Tzi Bun Ng
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong KongShatin, Hong Kong
| | - Xiangzhen Deng
- Fujian Key Laboratory of Marine Enzyme Engineering, Fuzhou UniversityFujian, China
| | - Juan Lin
- Fujian Key Laboratory of Marine Enzyme Engineering, Fuzhou UniversityFujian, China
| | - Xiuyun Ye
- Fujian Key Laboratory of Marine Enzyme Engineering, Fuzhou UniversityFujian, China
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26
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Stadlmair LF, Letzel T, Drewes JE, Graßmann J. Mass spectrometry based in vitro assay investigations on the transformation of pharmaceutical compounds by oxidative enzymes. CHEMOSPHERE 2017; 174:466-477. [PMID: 28189026 DOI: 10.1016/j.chemosphere.2017.01.140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 01/20/2017] [Accepted: 01/28/2017] [Indexed: 06/06/2023]
Abstract
The ubiquitous presence of trace organic chemicals in wastewater and surface water leads to a growing demand for novel removal technologies. The use of isolated enzymes has been shown to possess the capability for a targeted application but requires a clearer mechanistic understanding. In this study, the potential of peroxidase from horseradish (HRP) and laccase from Pleurotus ostreatus (LccPO) to transform selected trace organic chemicals was studied using mass spectrometry (MS)-based in vitro enzyme assays. Conversion by HRP appeared to be more efficient compared to LccPO. Diclofenac (DCF) and sotalol (STL) were completely transformed by HRP after 4 h and immediate conversion was observed for acetaminophen (APAP). During treatment with LccPO, 60% of DCF was still detectable after 24 h and no conversion was found for STL. APAP was completely transformed after 20 min. Sulfamethoxazole (SMX), carbamazepine (CBZ), ibuprofen (IBP) and naproxen (NAP) were insusceptible to enzymatic conversion. In pharmaceutical mixtures, HRP exhibited a preference for DCF and APAP and the generally less efficient conversion of STL was enhanced in presence of APAP. Transformation product pattern after treatment with HRP revealed polymerization products for DCF while STL showed cleavage reactions. DCF product formation shifted towards a proposed dimeric iminoquinone product in presence of APAP whereas a generally less pronounced product formation in mixtures was observed for STL. In conclusion, the enzymatic treatment approach worked selectively and efficiently for a few pharmaceuticals. However, for application the investigation and possibly immobilization of multiplex enzymes being able to transform diverse chemical structures is recommended.
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Affiliation(s)
- Lara F Stadlmair
- Chair of Urban Water Systems Engineering, Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Am Coloumbwall 3, 85748 Garching, Germany.
| | - Thomas Letzel
- Chair of Urban Water Systems Engineering, Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Am Coloumbwall 3, 85748 Garching, Germany
| | - Jörg E Drewes
- Chair of Urban Water Systems Engineering, Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Am Coloumbwall 3, 85748 Garching, Germany
| | - Johanna Graßmann
- Chair of Urban Water Systems Engineering, Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Am Coloumbwall 3, 85748 Garching, Germany.
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27
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Luo Q, Wang Z, Feng M, Chiang D, Woodward D, Liang S, Lu J, Huang Q. Factors controlling the rate of perfluorooctanoic acid degradation in laccase-mediator systems: The impact of metal ions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 224:649-657. [PMID: 28262377 DOI: 10.1016/j.envpol.2017.02.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 12/11/2016] [Accepted: 02/22/2017] [Indexed: 06/06/2023]
Abstract
This study investigated the factors that regulated the degradation of perfluorooctanoic acid (PFOA) in laccase-catalyzed oxidative humification reactions with 1-hydroxybenzotriazole (HBT) as a mediator. The reaction rates were examined under conditions with key factors varied, including initial PFOA concentrations, laccase and HBT dosages, and the ionic contents of the reaction solutions. The PFOA degradation followed pseudo-first order kinetics, and the rate constants (k) were similar for the high (100 μmol L-1) and low (1.00 μmol L-1) initial PFOA concentrations, respectively at 0.0040 day-1 (r2 = 0.98) and 0.0042 day-1 (r2 = 0.86) under an optimum reaction condition tested in this study. The metal ions contained in the reaction solution appeared to have a strong impact on PFOA degradation. Differential UV-Vis spectrometry revealed that Cu2+ can complex with PFOA, which plays an essential role to enable PFOA degradation, probably by bridging the negatively charged PFOA and laccase, so that the free radicals of HBT that are released from laccase can reach and react with PFOA. It was also found that Fe3+ plays a similar role as Cu2+ to enable PFOA degradation in the laccase-HBT reaction system. In contrast, Mg2+ and Mn2+ cannot complex with PFOA under the investigated conditions, and do not enable PFOA degradation in the laccase-HBT system. Fluoride and partially fluorinated compounds were detected as PFOA degradation products using ion chromatography and high resolution mass spectrometry. The structures of the products suggest the reaction pathways involving free-radical initiated decarboxylation, rearrangement, and cross-coupling.
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Affiliation(s)
- Qi Luo
- Interdisciplinary Toxicology Program, Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223, USA
| | - Zunyao Wang
- School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
| | - Mingbao Feng
- School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
| | - Dora Chiang
- AECOM Inc., Remediation Technology, Atlanta, GA 30309, USA
| | - David Woodward
- AECOM Inc., Remediation Technology, Mechanicsburg, PA 17055, USA
| | - Shangtao Liang
- Interdisciplinary Toxicology Program, Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223, USA
| | - Junhe Lu
- College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Qingguo Huang
- Interdisciplinary Toxicology Program, Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223, USA.
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28
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Grandclément C, Seyssiecq I, Piram A, Wong-Wah-Chung P, Vanot G, Tiliacos N, Roche N, Doumenq P. From the conventional biological wastewater treatment to hybrid processes, the evaluation of organic micropollutant removal: A review. WATER RESEARCH 2017; 111:297-317. [PMID: 28104517 DOI: 10.1016/j.watres.2017.01.005] [Citation(s) in RCA: 291] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 12/15/2016] [Accepted: 01/02/2017] [Indexed: 05/02/2023]
Abstract
Because of the recalcitrance of some micropollutants to conventional wastewater treatment systems, the occurrence of organic micropollutants in water has become a worldwide issue, and an increasing environmental concern. Their biodegradation during wastewater treatments could be an interesting and low cost alternative to conventional physical and chemical processes. This paper provides a review of the organic micropollutants removal efficiency from wastewaters. It analyses different biological processes, from conventional ones, to new hybrid ones. Micropollutant removals appear to be compound- and process- dependent, for all investigated processes. The influence of the main physico-chemical parameters is discussed, as well as the removal efficiency of different microorganisms such as bacteria or white rot fungi, and the role of their specific enzymes. Even though some hybrid processes show promising micropollutant removals, further studies are needed to optimize these water treatment processes, in particular in terms of technical and economical competitiveness.
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Affiliation(s)
- Camille Grandclément
- Aix-Marseille Univ, CNRS, LCE, Marseille, France; Aix-Marseille Univ, CNRS, Centrale Marseille, M2P2, Marseille, France; Société Seakalia SAS, Groupe Ovalee, Technopôle de Château-Gombert, Héliopolis, 13013, Marseille, France
| | | | - Anne Piram
- Aix-Marseille Univ, CNRS, LCE, Marseille, France
| | | | - Guillaume Vanot
- Société Seakalia SAS, Groupe Ovalee, Technopôle de Château-Gombert, Héliopolis, 13013, Marseille, France
| | - Nicolas Tiliacos
- Société Seakalia SAS, Groupe Ovalee, Technopôle de Château-Gombert, Héliopolis, 13013, Marseille, France
| | - Nicolas Roche
- Aix-Marseille Univ, CNRS, Centrale Marseille, M2P2, Marseille, France.
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Jahangiri E, Seiwert B, Reemtsma T, Schlosser D. Laccase- and electrochemically mediated conversion of triclosan: Metabolite formation and influence on antibacterial activity. CHEMOSPHERE 2017; 168:549-558. [PMID: 27842719 DOI: 10.1016/j.chemosphere.2016.11.030] [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: 09/29/2016] [Revised: 11/03/2016] [Accepted: 11/06/2016] [Indexed: 06/06/2023]
Abstract
Metabolite formation from radical-based oxidation of the environmental pollutant triclosan (TCS) was compared using an ascomycete (Phoma sp. UHH 5-1-03) and a basidiomycete (Trametes versicolor) laccase, laccase-redox mediator systems, and electrochemical oxidation (EC). Laccase oxidation predominantly yielded TCS di- and trimers, but notably also caused TCS ether bond cleavage. The latter was more prominent during EC-catalysed TCS oxidation, which generally resulted in a broader and more divergent product spectrum. By contrast, only quantitative but not qualitative differences in TCS metabolite formation were observed for the two laccases. Application of the presumable natural laccase redox mediator syringaldehyde (SYD) shifted the TCS-transforming reactions of laccase systems from oligomerization more towards ether bond cleavage. However, the observed rapid removal of SYD from reaction systems caused by predominant adduct formation from SYD and TCS, and concomitant conversion of SYD into 2,6-dimethoxy-1,4-benzoquinone (DMBQ) clearly demonstrates that SYD does not function as a "true" laccase redox mediator in the sense of being recycled during TCS oxidation. Laccase treatment of TCS without SYD decreased the anti-bacterial TCS activity more than treatment employing SYD in addition, indicating that SYD and/or its transformation products contribute to bacterial toxicity. DMBQ was found to be about 80% more active in a bacterial growth inhibition test than its parent compound SYD in terms of IC20 values. These observations establish DMBQ as a potential cause of toxicity effects of SYD-laccase systems. They further illustrate that a natural origin of a redox mediator does not automatically qualify its use as environmentally benign or non-hazardous.
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Affiliation(s)
- Elham Jahangiri
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Bettina Seiwert
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Dietmar Schlosser
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany.
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30
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Hachi M, Chergui A, Yeddou AR, Selatnia A, Cabana H. Removal of acetaminophen and carbamazepine in single and binary systems with immobilized laccase from Trametes hirsuta. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2017.1280032] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mohamed Hachi
- Laboratoire d’Étude et de Développement des Techniques de Traitement et d’Épuration des Eaux et de Gestion Environnementale (LEDTEGE), Département de Chimie, École Normale Supérieure Kouba, Alger, Algérie
- Faculté des Sciences de la Nature et de la Vie, Département de Biologie, Université Ziane Achour de Djelfa, Djelfa, Algérie
| | - Abdelmalek Chergui
- Laboratoire d’Étude et de Développement des Techniques de Traitement et d’Épuration des Eaux et de Gestion Environnementale (LEDTEGE), Département de Chimie, École Normale Supérieure Kouba, Alger, Algérie
- Laboratoire des Sciences et Techniques de l’Environnement, Département Génie de l’Environnement, École Nationale Polytechnique, Alger, Algérie
| | - Ahmed Reda Yeddou
- Laboratoire d’Étude et de Développement des Techniques de Traitement et d’Épuration des Eaux et de Gestion Environnementale (LEDTEGE), Département de Chimie, École Normale Supérieure Kouba, Alger, Algérie
- Département Génie de l’Environnement, Université M’Hamed Bougara, Boumerdès, Boumerdès, Algérie; and
| | - Ammar Selatnia
- Laboratoire des Sciences et Techniques de l’Environnement, Département Génie de l’Environnement, École Nationale Polytechnique, Alger, Algérie
| | - Hubert Cabana
- Environmental Engineering Laboratory, Department of Civil Engineering, University of Sherbrooke, Sherbrooke, Quebec, Canada
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31
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Li X, Xu QM, Cheng JS, Yuan YJ. Improving the bioremoval of sulfamethoxazole and alleviating cytotoxicity of its biotransformation by laccase producing system under coculture of Pycnoporus sanguineus and Alcaligenes faecalis. BIORESOURCE TECHNOLOGY 2016; 220:333-340. [PMID: 27591519 DOI: 10.1016/j.biortech.2016.08.088] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 08/22/2016] [Accepted: 08/23/2016] [Indexed: 06/06/2023]
Abstract
The occurrence of sulfamethoxazole (SMX) in aquatic environment is a health concern. The presence of SMX significantly inhibited the laccase activity of Pycnoporus sanguineus with a lower removal efficiency of SMX. Although a laccase system with 2,20-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) eliminated 100% SMX within 6h, ABTS might cause an environmental issue. An alternative to SMX elimination is the coculture of Alcaligenes faecalis and P. sanguineus. The SMX removal efficiency at 48h under the coculture with vitamins was higher than that under their pure culture alone, indicating that a coculture was more efficient in eliminating SMX than a pure culture. Only 1% SMX was detected in mycelia, indicating that SMX elimination is achieved primarily through biotransformation rather than adsorption. Laccase production by the coculture effectively inhibited the accumulations of N4-acetyl-SMX and N-hydroxy-SMX and alleviated the cytotoxicity of SMX transformation products. The mixture of SMX and sulfadiazine inhibited their removal efficiency.
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Affiliation(s)
- Xin Li
- Key Laboratory of Systems Bioengineering, Ministry of Education (Tianjin University), Tianjin 300072, People's Republic of China; School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China; SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, People's Republic of China
| | - Qiu-Man Xu
- College of Life Science, Tianjin Normal University, Tianjin 300072, People's Republic of China
| | - Jing-Sheng Cheng
- Key Laboratory of Systems Bioengineering, Ministry of Education (Tianjin University), Tianjin 300072, People's Republic of China; School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China; SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, People's Republic of China.
| | - Ying-Jin Yuan
- Key Laboratory of Systems Bioengineering, Ministry of Education (Tianjin University), Tianjin 300072, People's Republic of China; School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China; SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, People's Republic of China
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32
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de Cazes M, Belleville MP, Petit E, Salomo M, Bayer S, Czaja R, De Gunzburg J, Sanchez-Marcano J. Erythromycin degradation by esterase (EreB) in enzymatic membrane reactors. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2016.06.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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33
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Nguyen LN, Hai FI, Dosseto A, Richardson C, Price WE, Nghiem LD. Continuous adsorption and biotransformation of micropollutants by granular activated carbon-bound laccase in a packed-bed enzyme reactor. BIORESOURCE TECHNOLOGY 2016; 210:108-116. [PMID: 26803903 DOI: 10.1016/j.biortech.2016.01.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/05/2016] [Accepted: 01/06/2016] [Indexed: 06/05/2023]
Abstract
Laccase was immobilized on granular activated carbon (GAC) and the resulting GAC-bound laccase was used to degrade four micropollutants in a packed-bed column. Compared to the free enzyme, the immobilized laccase showed high residual activities over a broad range of pH and temperature. The GAC-bound laccase efficiently removed four micropollutants, namely, sulfamethoxazole, carbamazepine, diclofenac and bisphenol A, commonly detected in raw wastewater and wastewater-impacted water sources. Mass balance analysis showed that these micropollutants were enzymatically degraded following adsorption onto GAC. Higher degradation efficiency of micropollutants by the immobilized compared to free laccase was possibly due to better electron transfer between laccase and substrate molecules once they have adsorbed onto the GAC surface. Results here highlight the complementary effects of adsorption and enzymatic degradation on micropollutant removal by GAC-bound laccase. Indeed laccase-immobilized GAC outperformed regular GAC during continuous operation of packed-bed columns over two months (a throughput of 12,000 bed volumes).
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Affiliation(s)
- Luong N Nguyen
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong (UOW), NSW 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong (UOW), NSW 2522, Australia.
| | - Anthony Dosseto
- Wollongong Isotope Geochronology Laboratory, School of Earth and Environmental Sciences, UOW, NSW 2522, Australia
| | | | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry, UOW, NSW 2522, Australia
| | - Long D Nghiem
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong (UOW), NSW 2522, Australia
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34
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Enhanced biodegradation of antibiotic combinations via the sequential treatment of the sludge resulting from pharmaceutical wastewater treatment using white-rot fungi Trametes versicolor and Bjerkandera adusta. Appl Microbiol Biotechnol 2016; 100:6491-6499. [DOI: 10.1007/s00253-016-7473-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/13/2016] [Accepted: 03/15/2016] [Indexed: 10/22/2022]
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35
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Nguyen LN, van de Merwe JP, Hai FI, Leusch FDL, Kang J, Price WE, Roddick F, Magram SF, Nghiem LD. Laccase-syringaldehyde-mediated degradation of trace organic contaminants in an enzymatic membrane reactor: Removal efficiency and effluent toxicity. BIORESOURCE TECHNOLOGY 2016; 200:477-484. [PMID: 26519700 DOI: 10.1016/j.biortech.2015.10.054] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/01/2015] [Accepted: 10/06/2015] [Indexed: 06/05/2023]
Abstract
Redox-mediators such as syringaldehyde (SA) can improve laccase-catalyzed degradation of trace organic contaminants (TrOCs) but may increase effluent toxicity. The degradation performance of 14 phenolic and 17 non-phenolic TrOCs by a continuous flow enzymatic membrane reactor (EMR) at different TrOC and SA loadings was assessed. A specific emphasis was placed on the investigation of the toxicity of the enzyme (laccase), SA, TrOCs and the treated effluent. Batch tests demonstrated significant individual and interactive toxicity of the laccase and SA preparations. Reduced removal of resistant TrOCs by the EMR was observed for dosages over 50μg/L. SA addition at a concentration of 10μM significantly improved TrOC removal, but no removal improvement was observed at the elevated SA concentrations of 50 and 100μM. The treated effluent showed significant toxicity at SA concentrations beyond 10μM, providing further evidence that higher dosage of SA must be avoided.
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Affiliation(s)
- Luong N Nguyen
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Jason P van de Merwe
- Smart Water Research Centre, Australian Rivers Institute, School of Environment, Griffith University, QLD 4222, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
| | - Frederic D L Leusch
- Smart Water Research Centre, Australian Rivers Institute, School of Environment, Griffith University, QLD 4222, Australia
| | - Jinguo Kang
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia; Strategic Water Infrastructure Lab, School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - William E Price
- Strategic Water Infrastructure Lab, School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Felicity Roddick
- School of Civil, Environmental and Chemical Engineering, RMIT University, Melbourne, VIC 3001, Australia
| | - Saleh F Magram
- Department of Civil Engineering, King Abdul Aziz University, Jeddah 21589, Saudi Arabia
| | - Long D Nghiem
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
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36
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Massalha N, Brenner A, Sheindorf C, Sabbah I. Application of immobilized and granular dried anaerobic biomass for stabilizing and increasing anaerobic bio-systems tolerance for high organic loads and phenol shocks. BIORESOURCE TECHNOLOGY 2015; 197:106-112. [PMID: 26318929 DOI: 10.1016/j.biortech.2015.08.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/10/2015] [Accepted: 08/11/2015] [Indexed: 06/04/2023]
Abstract
This study focuses on the stability and tolerance of continuous-flow bioreactors inoculated with anaerobic methanogens in three different configurations: (R1) dried granular biomass immobilized in PAC-enriched hydrophilic polyurethane foam, (R2) dried granular biomass, and (R3) wet granular biomass. These systems were tested under two different organic loading rates (OLR) of 6.25 and 10.94 (gCOD/(Lreactor∗d)), using a glucose-based synthetic mixture. The effect of an instantaneous shock load of phenol (5g/L for three days), and of phenol inclusion in the feed (0.5g/L) were also tested. At the lower OLR, all reactors performed similarly, however, increasing the OLR lead to a significant biomass washout and failure of R3. Biomass in R1 was more tolerant to phenol shock load than R2, though activity was recovered in both systems after about one month. PAC provided protection and shortened the adaptation time for 0.5g/L phenol that continuously was fed.
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Affiliation(s)
- Nedal Massalha
- Unit of Environmental Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev (BGU), Beer-Sheva, Israel; The Galilee Society Institute of Applied Research, Shefa-Amr, Israel
| | - Asher Brenner
- Unit of Environmental Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev (BGU), Beer-Sheva, Israel
| | - Chaim Sheindorf
- Chemical Engineering Department, Shenkar Engineering College, Ramat-Gan, Israel
| | - Isam Sabbah
- The Galilee Society Institute of Applied Research, Shefa-Amr, Israel; Prof. Ephraim Katzir Department of Biotechnology Engineering, Braude College, Karmiel, Israel.
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37
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Margot J, Copin PJ, von Gunten U, Barry D, Holliger C. Sulfamethoxazole and isoproturon degradation and detoxification by a laccase-mediator system: Influence of treatment conditions and mechanistic aspects. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.06.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Cui Z, Wang J, Zhang H, Jia H. Investigation of high-intensity magnetic hydrogels in the application of membrane physical cleaning. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.09.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Golan-Rozen N, Seiwert B, Riemenschneider C, Reemtsma T, Chefetz B, Hadar Y. Transformation Pathways of the Recalcitrant Pharmaceutical Compound Carbamazepine by the White-Rot Fungus Pleurotus ostreatus: Effects of Growth Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:12351-62. [PMID: 26418858 DOI: 10.1021/acs.est.5b02222] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The widely used anticonvulsant pharmaceutical carbamazepine is recalcitrant in many environmental niches and thus poses a challenge in wastewater treatment. We followed the decomposition of carbamazepine by the white-rot fungus Pleurotus ostreatus in liquid culture compared to solid-state fermentation on lignocellulosic substrate where different enzymatic systems are active. Carbamazepine metabolites were identified using liquid chromatography-high-resolution mass spectrometry (LC-Q-TOF-MS). In liquid culture, carbamazepine was only transformed to 10,11-epoxy carbamazepine and 10,11-dihydroxy carbamazepine as a dead-end product. During solid-state fermentation, carbamazepine metabolism resulted in the generation of an additional 22 transformation products, some of which are toxic. Under solid-state-fermentation conditions, 10,11-epoxy carbamazepine was further metabolized via acridine and 10,11-dihydroxy carbamazepine pathways. The latter was further metabolized via five subpathways. When (14)C-carbonyl-labeled carbamazepine was used as the substrate, (14)C-CO2 release amounted to 17.4% of the initial radioactivity after 63 days of incubation. The proposed pathways were validated using metabolites (10,11-epoxy carbamazepine, 10,11-dihydroxy carbamazepine, and acridine) as primary substrates and following their fate at different time points. This work highlights the effect of growth conditions on the transformation pathways of xenobiotics. A better understanding of the fate of pollutants during bioremediation treatments is important for establishment of such technologies.
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Affiliation(s)
| | - Bettina Seiwert
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ , Permoserstrasse 15, 04318 Leipzig, Germany
| | - Christina Riemenschneider
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ , Permoserstrasse 15, 04318 Leipzig, Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ , Permoserstrasse 15, 04318 Leipzig, Germany
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Gasser CA, Ammann EM, Shahgaldian P, Corvini PFX. Laccases to take on the challenge of emerging organic contaminants in wastewater. Appl Microbiol Biotechnol 2014; 98:9931-52. [PMID: 25359481 DOI: 10.1007/s00253-014-6177-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/16/2014] [Accepted: 10/17/2014] [Indexed: 10/24/2022]
Abstract
The removal of emerging organic contaminants from municipal wastewater poses a major challenge unsatisfactorily addressed by present wastewater treatment processes. Enzyme-catalyzed transformation of emerging organic contaminants (EOC) has been proposed as a possible solution to this major environmental issue more than a decade ago. Especially, laccases gained interest in this context in recent years due to their broad substrate range and since they only need molecular oxygen as a cosubstrate. In order to ensure the stability of the enzymes and allow their retention and reuse, either immobilization or insolubilization of the biocatalysts seems to be the prerequisite for continuous wastewater treatment applications. The present review summarizes the research conducted on EOC transformation with laccases and presents an overview of the possible immobilization techniques. The goal is to assess the state of the art and identify the next necessary steps that have to be undertaken in order to implement laccases as a tertiary wastewater treatment process in sewage treatment plants.
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Affiliation(s)
- Christoph A Gasser
- Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Gründenstrasse 40, Muttenz, CH-4132, Switzerland
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de Cazes M, Abejón R, Belleville MP, Sanchez-Marcano J. Membrane bioprocesses for pharmaceutical micropollutant removal from waters. MEMBRANES 2014; 4:692-729. [PMID: 25295629 PMCID: PMC4289862 DOI: 10.3390/membranes4040692] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/16/2014] [Accepted: 09/17/2014] [Indexed: 01/02/2023]
Abstract
The purpose of this review work is to give an overview of the research reported on bioprocesses for the treatment of domestic or industrial wastewaters (WW) containing pharmaceuticals. Conventional WW treatment technologies are not efficient enough to completely remove all pharmaceuticals from water. Indeed, these compounds are becoming an actual public health problem, because they are more and more present in underground and even in potable waters. Different types of bioprocesses are described in this work: from classical activated sludge systems, which allow the depletion of pharmaceuticals by bio-degradation and adsorption, to enzymatic reactions, which are more focused on the treatment of WW containing a relatively high content of pharmaceuticals and less organic carbon pollution than classical WW. Different aspects concerning the advantages of membrane bioreactors for pharmaceuticals removal are discussed, as well as the more recent studies on enzymatic membrane reactors to the depletion of these recalcitrant compounds.
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Affiliation(s)
- Matthias de Cazes
- Institut Européen des Membranes (IEM), ENSCM, UM2, CNRS, Université de Montpellier 2, CC 047, Place Eugène Bataillon 34095, France.
| | - Ricardo Abejón
- Institut Européen des Membranes (IEM), ENSCM, UM2, CNRS, Université de Montpellier 2, CC 047, Place Eugène Bataillon 34095, France.
| | - Marie-Pierre Belleville
- Institut Européen des Membranes (IEM), ENSCM, UM2, CNRS, Université de Montpellier 2, CC 047, Place Eugène Bataillon 34095, France.
| | - José Sanchez-Marcano
- Institut Européen des Membranes (IEM), ENSCM, UM2, CNRS, Université de Montpellier 2, CC 047, Place Eugène Bataillon 34095, France.
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