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Dutta S, Adhikary S, Bhattacharya S, Roy D, Chatterjee S, Chakraborty A, Banerjee D, Ganguly A, Nanda S, Rajak P. Contamination of textile dyes in aquatic environment: Adverse impacts on aquatic ecosystem and human health, and its management using bioremediation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120103. [PMID: 38280248 DOI: 10.1016/j.jenvman.2024.120103] [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: 10/17/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/29/2024]
Abstract
Textile dyes are the burgeoning environmental contaminants across the world. They might be directly disposed of from textile industries into the aquatic bodies, which act as the direct source for the entire ecosystem, ultimately impacting the human beings. Hence, it is essential to dissect the potential adverse outcomes of textile dye exposure on aquatic plants, aquatic fauna, terrestrial entities, and humans. Analysis of appropriate literature has revealed that textile dye effluents could affect the aquatic biota by disrupting their growth and reproduction. Various aquatic organisms are targeted by textile dye effluents. In such organisms, these chemicals affect their development, behavior, and induce oxidative stress. General populations of humans are exposed to textile dyes via the food chain and drinking contaminated water. In humans, textile dyes are biotransformed into electrophilic intermediates and aromatic amines by the enzymes of the cytochrome family. Textile dyes and their biotransformed products form the DNA and protein adducts at sub-cellular moiety. Moreover, these compounds catalyze the production of free radicals and oxidative stress, and trigger the apoptotic cascades to produce lesions in multiple organs. In addition, textile dyes modulate epigenetic factors like DNA methyltransferase and histone deacetylase to promote carcinogenesis. Several bioremediation approaches involving algae, fungi, bacteria, biomembrane filtration techniques, etc., have been tested and some other hybrid systems are currently under investigation to treat textile dye effluents. However, many such approaches are at the trial stage and require further research to develop more efficient, cost-effective, and easy-to-handle techniques.
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Affiliation(s)
- Sohini Dutta
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Satadal Adhikary
- Post Graduate Department of Zoology, A.B.N. Seal College, Cooch Behar, West Bengal, India
| | | | - Dipsikha Roy
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Sovona Chatterjee
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Aritra Chakraborty
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Diyasha Banerjee
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Abhratanu Ganguly
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Sayantani Nanda
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Prem Rajak
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
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Narwal N, Katyal D, Kataria N, Rose PK, Warkar SG, Pugazhendhi A, Ghotekar S, Khoo KS. Emerging micropollutants in aquatic ecosystems and nanotechnology-based removal alternatives: A review. CHEMOSPHERE 2023; 341:139945. [PMID: 37648158 DOI: 10.1016/j.chemosphere.2023.139945] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
There is a significant concern about the accessibility of uncontaminated and safe drinking water, a fundamental necessity for human beings. This concern is attributed to the toxic micropollutants from several emission sources, including industrial toxins, agricultural runoff, wastewater discharges, sewer overflows, landfills, algal blooms and microbiota. Emerging micropollutants (EMs) encompass a broad spectrum of compounds, including pharmaceutically active chemicals, personal care products, pesticides, industrial chemicals, steroid hormones, toxic nanomaterials, microplastics, heavy metals, and microorganisms. The pervasive and enduring nature of EMs has resulted in a detrimental impact on global urban water systems. Of late, these contaminants are receiving more attention due to their inherent potential to generate environmental toxicity and adverse health effects on humans and aquatic life. Although little progress has been made in discovering removal methodologies for EMs, a basic categorization procedure is required to identify and restrict the EMs to tackle the problem of these emerging contaminants. The present review paper provides a crude classification of EMs and their associated negative impact on aquatic life. Furthermore, it delves into various nanotechnology-based approaches as effective solutions to address the challenge of removing EMs from water, thereby ensuring potable drinking water. To conclude, this review paper addresses the challenges associated with the commercialization of nanomaterial, such as toxicity, high cost, inadequate government policies, and incompatibility with the present water purification system and recommends crucial directions for further research that should be pursued.
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Affiliation(s)
- Nishita Narwal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, 110078, New Delhi, India
| | - Deeksha Katyal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, 110078, New Delhi, India.
| | - Navish Kataria
- Department of Environmental Sciences, J.C. Bose University of Science and Technology, YMCA, Faridabad, 121006, Haryana, India.
| | - Pawan Kumar Rose
- Department of Energy and Environmental Sciences, Chaudhary Devi Lal University, Sirsa, 125055, Haryana, India
| | - Sudhir Gopalrao Warkar
- Department of Applied Chemistry, Delhi Technological University, Shahbad Daulatpur Village, Rohini, 110042, New Delhi, India
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Suresh Ghotekar
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
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3
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Negrete Velasco A, Ramseier Gentile S, Zimmermann S, Le Coustumer P, Stoll S. Contamination and removal efficiency of microplastics and synthetic fibres in a conventional drinking water treatment plant in Geneva, Switzerland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163270. [PMID: 37023809 DOI: 10.1016/j.scitotenv.2023.163270] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/23/2023] [Accepted: 03/31/2023] [Indexed: 05/27/2023]
Abstract
Although it is known that freshwater resources are contaminated with microplastics (MPs), still limited information is known about the efficiency of large drinking water treatment plants (DWTP) to remove microplastics. Moreover, reported concentrations of MPs in drinking water variates from some units to thousands of units per litre and the sampling volumes used for MPs analysis are generally heterogeneous and limited. The present study evaluates the removal of MPs and synthetic fibres in the main DWTP of Geneva, Switzerland, by considering large sampling volumes at different time intervals. Furthermore, contrary to other studies, this DWTP does not count with a clarification process before sand filtration and coagulated water is sent directly to sand filtration. In this study a distinction is made between microplastics as fragments, films, pellets, and synthetic fibres. Raw water and effluents of each filtering mass (sand and activated carbon filtration) are analysed for the presence of MPs and synthetic fibres with sizes ≥63 μm using infrared spectroscopy. Concentrations of MPs in raw water range from 25.7 to 55.6 MPs/m3 and in treated water from 0 to 4 MPs/m3, respectively. Results show that 70 % of MPs are retained during sand filtration and total removal is equal to 97 % in treated water after activated carbon filtration. Concentration of identified synthetic fibres is low (average value of 2 synthetic fibres/m3) and constant in all steps of water treatment. Chemical composition of microplastics and synthetic fibres is found more heterogeneous in raw water than after sand filtration and activated carbon filtration, indicating the persistence of some types of plastics (like polyethylene and polyethylene terephthalate) in water treatment processes. Heterogeneities in MP concentrations are observed from one sampling campaign to another, indicating significant variations of MP concentrations in raw water.
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Affiliation(s)
- Angel Negrete Velasco
- Department F.-A. Forel for environmental and aquatic sciences, University of Geneva, Faculty of Science, Uni Carl Vogt, Group of Environmental Physical Chemistry, 66, boulevard Carl-Vogt, CH-1211 Geneva 4, Switzerland
| | | | | | - Philippe Le Coustumer
- EA CNRS Géoressources & Environnement, Université Bordeaux Montaigne, 1 allée F. Daguin, F-3607 Pessac, France; CNRS-INRA-Université de Bordeaux UMS 3420, Bordeaux Imaging Center, 146 rue Léo Saignat, CS 61292, F-33076 Bordeaux, France
| | - Serge Stoll
- Department F.-A. Forel for environmental and aquatic sciences, University of Geneva, Faculty of Science, Uni Carl Vogt, Group of Environmental Physical Chemistry, 66, boulevard Carl-Vogt, CH-1211 Geneva 4, Switzerland.
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4
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Chen D, Zhao L, Chen D, Hou P, Liu J, Wang C, Aborisade MA, Yin M, Yang Y. Fabrication of a SnO 2-Sb electrode with TiO 2 nanotube array as the middle layer for efficient electrochemical oxidation of amaranth dye. CHEMOSPHERE 2023; 325:138380. [PMID: 36907492 DOI: 10.1016/j.chemosphere.2023.138380] [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: 12/15/2022] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Efficient, stable, and easily producible electrodes are useful for treating dye wastewater through electrochemical oxidation. In this study, an Sb-doped SnO2 electrode with TiO2 nanotubes as the middle layer (TiO2-NTs/SnO2-Sb) was prepared through an optimized electrodeposition process. Analyses of the coating morphology, crystal structure, chemical state, and electrochemical properties revealed that tightly packed TiO2 clusters provided a larger surface area and more contact points, which is conducive to reinforcing the binding of SnO2-Sb coatings. Compared with a Ti/SnO2-Sb electrode without a TiO2-NT interlayer, the catalytic activity and stability of the TiO2-NTs/SnO2-Sb electrode significantly improved (P < 0.05), as reflected by the 21.8% increase in the amaranth dye decolorization efficiency and 200% increase in the service life. The effects of current density, pH, electrolyte concentration, initial amaranth concentration, and the interaction between various combinations of parameters on the electrolysis performance were investigated. Based on response surface optimization, the maximum decolorization efficiency of the amaranth dye could reach 96.2% within 120 min under the following set of optimized parameter values: 50 mg L-1 amaranth concentration, 20 mA cm-2 current density, and 5.0 pH. A potential degradation mechanism of the amaranth dye was proposed based on the experimental results of a quenching test, ultraviolet-visible spectroscopy, and high-performance liquid chromatography-mass spectrometry. This study provides a more sustainable method for fabricating SnO2-Sb electrodes with TiO2-NT interlayers to treat refractory dye wastewater.
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Affiliation(s)
- Daying Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, PR China
| | - Lin Zhao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, PR China; Tianjin Engineering Center for Technology of Protection and Function Construction of Ecological Critical Zone, Tianjin, 300350, PR China
| | - Danning Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, PR China; GreenLand Environmental Technology Co., LTD, Tianjin, 300193, PR China
| | - Pengfei Hou
- Beijing Engineering Research Center of Environmental Material for Water Purification, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Jiashu Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, PR China
| | - Chuanbin Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, PR China
| | | | - Meilin Yin
- School of Chemical Engineering, Tianjin University, Tianjin, 300072, PR China
| | - Yongkui Yang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, PR China; Tianjin Engineering Center for Technology of Protection and Function Construction of Ecological Critical Zone, Tianjin, 300350, PR China.
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5
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Liyanaarachchi H, Thambiliyagodage C, Lokuge H, Vigneswaran S. Kinetics and Thermodynamics Study of Methylene Blue Adsorption to Sucrose- and Urea-Derived Nitrogen-Enriched, Hierarchically Porous Carbon Activated by KOH and H 3PO 4. ACS OMEGA 2023; 8:16158-16173. [PMID: 37179646 PMCID: PMC10173434 DOI: 10.1021/acsomega.3c00339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
Hierarchically porous nitrogen-enriched carbon materials synthesized by polymerization of sucrose and urea (SU) were activated by KOH and H3PO4 (SU-KOH and SU-H3PO4, respectively). Characterization was undertaken and the synthesized materials were tested for their ability to adsorb methylene blue (MB). Scanning electron microscopic images along with the Brunauer-Emmett-Teller (BET) surface area analysis revealed the presence of a hierarchically porous system. X-ray photoelectron spectroscopy (XPS) confirms the surface oxidation of SU upon activation with KOH and H3PO4. The best conditions for removing dyes utilizing both activated adsorbents were determined by varying the pH, contact time, adsorbent dosage, and dye concentration. Adsorption kinetics were evaluated, and the adsorption of MB followed second-order kinetics, suggesting the chemisorption of MB to both SU-KOH and SU-H3PO4. Times taken to reach the equilibrium by SU-KOH and SU-H3PO4 were 180 and 30 min, respectively. The adsorption isotherm data were fitted to the Langmuir, Freundlich, Temkin, and Dubinin models. Data were best described by the Temkin isotherm model for SU-KOH and the Freundlich isotherm model for SU-H3PO4. Thermodynamics of the adsorption of MB to the adsorbent was determined by varying the temperature in the range of 25-55 °C. Adsorption of MB increased with increasing temperature, suggesting that the adsorption process is endothermic. The highest adsorption capacities of SU-KOH and SU-H3PO4 (1268 and 897 mg g-1, respectively) were obtained at 55 °C. Synthesized adsorbents were effective in removing MB for five cycles with some loss in activity. The results of this study show that SU activated by KOH and H3PO4 are environmentally benign, favorable, and effective adsorbents for MB adsorption.
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Affiliation(s)
- Heshan Liyanaarachchi
- Faculty
of Humanities and Sciences, Sri Lanka Institute
of Information Technology, New Kandy Road, Malabe 10115, Sri Lanka
| | - Charitha Thambiliyagodage
- Faculty
of Humanities and Sciences, Sri Lanka Institute
of Information Technology, New Kandy Road, Malabe 10115, Sri Lanka
| | - Hasindhi Lokuge
- College
of Chemical Sciences, Institute of Chemistry
Ceylon, Rajagiriya, CO 10107, Sri Lanka
| | - Saravanamuthu Vigneswaran
- Faculty
of Engineering and Information Technology, University of Technology Sydney, P.O.
Box 123, Broadway, NSW 2007, Australia
- Faculty
of Sciences & Technology (RealTek), Norwegian University of Life Sciences, P.O. Box 5003, Ås N-1432, Norway
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6
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Jeyaraja S, Palanivel S, Sathyanathan S, Munusamy C. Photocatalytic degradation of reactive dyes using natural photo-smart pigment-A novel approach for waste water re-usability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:69639-69650. [PMID: 37140866 DOI: 10.1007/s11356-023-27360-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 04/26/2023] [Indexed: 05/05/2023]
Abstract
The present study is aimed at an efficient photocatalytic degradation of industrially important reactive dyes using phycocyanin extract as a photocatalyst. The percentage of dye degradation was evidenced by a UV-visible spectrophotometer and FT-IR analysis. The degraded water was checked for its complete degradation by varying pH from 3 to 12. Furthermore, the degraded water was also analyzed for water quality parameters and was found to meet industrial wastewater standards. The calculated irrigation parameters like magnesium hazard ratio, soluble sodium percentage, and Kelly's ratio of degraded water were within the permissible limits, which enables its reusability in irrigation, aquaculture, as industrial coolants, and domestic applications. The calculated correlation matrix shows that the metal influences various macro-, micro-, and non-essential elements. These results suggest that the non-essential element lead can be effectively reduced by increasing all the other micronutrients and macronutrients under study except sodium metal.
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Affiliation(s)
- Sharmila Jeyaraja
- Department of Chemistry, St. Joseph's College of Engineering, Sholinganallur, Chennai, 600 119, Tamil Nadu, India
| | - Saravanan Palanivel
- Department of Chemistry, St. Joseph's College of Engineering, Sholinganallur, Chennai, 600 119, Tamil Nadu, India
| | - Suresh Sathyanathan
- Department of Physics, St. Joseph's College of Engineering, Sholinganallur, Chennai, 600 119, Tamil Nadu, India
| | - Chamundeeswari Munusamy
- Department of Biotechnology, St. Joseph's College of Engineering, Sholinganallur, Chennai, 600 119, Tamil Nadu, India.
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Suresh R, Rajendran S, Gnanasekaran L, Show PL, Chen WH, Soto-Moscoso M. Modified poly(vinylidene fluoride) nanomembranes for dye removal from water - A review. CHEMOSPHERE 2023; 322:138152. [PMID: 36791812 DOI: 10.1016/j.chemosphere.2023.138152] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 01/26/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Water contamination due to soluble synthetic dyes has serious concerns. Membrane-based wastewater treatments are emerging as a preferred choice for removing dyes from water. Poly(vinylidene fluoride) (PVDF)-based nanomembranes have gained much popularity due to their favorable features. This review explores the application of PVDF-based nanomembranes in synthetic dye removal through various treatments. Different fabrication methods to obtain high performance PVDF-based nanomembranes were discussed under surface coating and blending methods. Studies related to use of PVDF-based nanomembranes in adsorption, filtration, catalysis (oxidant activation, ozonation, Fenton process and photocatalysis) and membrane distillation have been elaborately discussed. Nanomaterials including metal compounds, metals, (synthetic/bio)polymers, metal organic frameworks, carbon materials and their composites were incorporated in PVDF membrane to enhance its performance. The advantages and limitations of incorporating nanomaterials in PVDF-based membranes have been highlighted. The influence of nanomaterials on the surface features, mechanical strength, hydrophilicity, crystallinity and catalytic ability of PVDF membrane was discussed. The conclusion of this literature review was given along with future research.
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Affiliation(s)
- R Suresh
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile.
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile; Department of Chemical Engineering, Lebanese American University, Byblos, Lebanon; Saveetha School of Engineering, Saveetha Institute of Medical and Technical Science, Chennai, 602105, India
| | - Lalitha Gnanasekaran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile; University Centre for Research & Development, Department of Mechanical Engineering, Chandigarh University, Mohali, Punjab, 140413, India.
| | - Pau Loke Show
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, China; Department of Chemical and Environmental Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan, 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung, 411, Taiwan
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Ahmad A, Priyadarshini M, Yadav S, Ghangrekar MM, Surampalli RY. The potential of biochar-based catalysts in advanced treatment technologies for efficacious removal of persistent organic pollutants from wastewater: A review. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.09.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Eco-toxicological effect of a commercial dye Rhodamine B on freshwater microalgae Chlorella vulgaris. Arch Microbiol 2022; 204:658. [PMID: 36183287 DOI: 10.1007/s00203-022-03254-5] [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: 07/11/2022] [Revised: 09/04/2022] [Accepted: 09/12/2022] [Indexed: 11/20/2022]
Abstract
In this study, the acute toxicity effects of a fluorescent xanthene dye, Rhodamine B (RhB), widely used in textile, paper, and leather industries was investigated on a freshwater microalgae Chlorella vulgaris. The acute toxicity of RhB on C. vulgaris was determined by examining the growth, cell morphology, pigment production, protein content, and the activities of oxidative stress enzymes. Based on the results of the toxicity study of 24-96 h, the median inhibitory concentration (IC50) values ranged from 69.94 to 31.29 mg L-1. The growth of C. vulgaris was conspicuously inhibited by RhB exposure, and the cell surfaces appeared to be seriously shrunk in SEM analysis. The growth of C. vulgaris was hindered after exposure to graded concentrations (10-50 mg L-1) of RhB. A significant reduction in growth rate, pigment synthesis (chlorophyll a, chlorophyll b, and carotenoid), and protein content was recorded in a dose-dependent manner. After 96 h exposure of C. vulgaris to 50 mg L-1 RhB, chlorophyll a, chlorophyll b, carotenoids, and protein contents were reduced by 71.59, 74.90, 65.84, and 74.20%, respectively. The activities of the antioxidant enzymes peroxidase (POD), and catalase (CAT) also increased markedly in the presence of RhB. A notable effect was observed on oxidative enzymes catalase and peroxidase, indicating that oxidative stress may be the primary factor in the inhibition of growth and pigment synthesis. Consequently, the experimental acute toxicity data were compared to the QSAR prediction made by the ECOSAR programme. Results showed that the experimental acute toxicity values were 67.74-fold lower than the ECOSAR predicted values. The study provides convincing evidence for the metabolic disruption in the ubiquitous microalgae C. vulgaris due to the RhB dye toxicity.
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Pirsaheb M, Hossaini H, Asadi A, Jafari Z. Persulfate activation by magnetic SnS2-Fe3O4/rGO nanocomposite under visible light for detoxification of organophosphorus pesticide. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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11
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Jeyaraja S, Palanivel S, Palanimuthu K, Munusamy C. Phycocyanin from Spirulina platensis bio-mimics quantum dots photocatalytic activity: A novel approach for dye degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:68280-68292. [PMID: 35536466 DOI: 10.1007/s11356-022-20563-w] [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: 03/02/2022] [Accepted: 04/27/2022] [Indexed: 06/14/2023]
Abstract
In our present study, the photocatalytic degradation of malachite green (MG) an organic dye was carried out using a phycocyanin extract of Spirulina platensis under the irradiation of sunlight. The aim of the present study is to incorporate a simple, novel, an eco-friendly, and cost-effective degradation of dyes without using any harmful metals and chemicals. It was observed that 25 ppm of MG dye got degraded nearly to 100 % at 3 h. The UV absorbance studies indicate the absence of a peak at 620 nm which is a conclusive evidence for MG dye degradation. An optimization study of MG dye degradation was evaluated by Response Surface Methodology using Minitab module 20.4.0.0 statistical software and its percentage of degradation was statistically analyzed using analystat. The FT-IR studies of raw spectra show minimal variation; however, the deconvoluted spectra in the region of 1600-1700 cm-1 indicate the variation in the secondary structure of amide I bands that leads to the dye degradation. The dye degradation study mainly follows the first-order kinetics between the time intervals of 60-180 min. The characteristics of degraded water were assessed by a TOC analyzer. The value of total inorganic carbon (TIC) in MG before treatment was 90 mg/L and seems to be slightly high when compared to MG after treatment which was found to be 87.65 mg/L and the adsorbent-treated water with a low value of 54.25 mg/L. These results well matched with the characteristics of normal water. The presence of phycocyanin in the degraded water was effectively removed by treating with activated carbon and it was confirmed with fluorescence analysis. These results support that the MG dye degradation was exhibited by phycocyanin extract and bio-mimics the quantum dot photocatalytic activity.
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Affiliation(s)
- Sharmila Jeyaraja
- Department of Chemistry, St. Joseph's College of Engineering, Sholinganallur, Chennai, Tamil Nadu, 600 119, India
| | - Saravanan Palanivel
- Department of Chemistry, St. Joseph's College of Engineering, Sholinganallur, Chennai, Tamil Nadu, 600 119, India
| | - Kowsalya Palanimuthu
- Department of Biotechnology, St. Joseph's College of Engineering, Sholinganallur, Chennai, Tamil Nadu, 600 119, India
| | - Chamundeeswari Munusamy
- Department of Biotechnology, St. Joseph's College of Engineering, Sholinganallur, Chennai, Tamil Nadu, 600 119, India.
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12
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Moorthy AK, Shukla SP, Govindarajan RB, Kumar K, Bharti VS. Application of Microalgal Physiological Response as Biomarker for Evaluating the Toxicity of the Textile Dye Alizarin Red S. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:401-408. [PMID: 35441856 DOI: 10.1007/s00128-022-03525-3] [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: 12/06/2021] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Textile dyes are becoming a growing threat to the environment. This report presents the findings of the study on the toxicity of the textile dye Alizarin Red S on two freshwater microalgae. The acute toxicity assay revealed that 96-h EC50 values of Chlorella vulgaris and Spirulina platensis were 29.81 mg/L and 18.94 mg/L respectively. The pigments chlorophyll-a, b and carotenoids in C. vulgaris on 96-h exposure to the dye were 2.91, 3.29 and 3.01 times lower in analogy to control whereas Spirulina platensis showed 2.89and 2.56 fold decrease in chlorophyll-a and carotenoid content than control. After the test period of 96-h with dye, the protein content of C. vulgaris and S. platensis were 2.33 and 1.77 times lower compared to the control. The growth inhibition rate, pigment as well as the protein content declined in compliance with the rise in dye concentration, which anticipate paradigm about the toxic effects of the textile dye.
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Affiliation(s)
- Abarna Krishna Moorthy
- Division of Aquatic Environment and Health Management, Central Institute of Fisheries Education, 400061, Mumbai, Maharastra, India
| | - Satya Prakash Shukla
- Division of Aquatic Environment and Health Management, Central Institute of Fisheries Education, 400061, Mumbai, Maharastra, India
| | - Rathi Bhuvaneswari Govindarajan
- Division of Aquatic Environment and Health Management, Central Institute of Fisheries Education, 400061, Mumbai, Maharastra, India.
| | - Kundan Kumar
- Division of Aquatic Environment and Health Management, Central Institute of Fisheries Education, 400061, Mumbai, Maharastra, India
| | - Vidya Shree Bharti
- Division of Aquatic Environment and Health Management, Central Institute of Fisheries Education, 400061, Mumbai, Maharastra, India
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Wang R, Li H, Liu Y, Chen J, Peng F, Jiang Z, Liu J, Song H. Efficient removal of azo dyes by Enterococcus faecalis R1107 and its application in simulated textile effluent treatment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 238:113577. [PMID: 35526458 DOI: 10.1016/j.ecoenv.2022.113577] [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: 02/24/2022] [Revised: 04/14/2022] [Accepted: 04/27/2022] [Indexed: 06/14/2023]
Abstract
This study aimed to exploit the potential of Enterococcus faecalis R1107 in the bioremediation of azo dyes. The maximal decolorization of Congo Red (CR), Reactive Black 5 (RB5), and Direct Black 38 (DB38) were 90.17%, 96.82%, and 81.95%, respectively, with the bacterial treatment for 48 h. 65.57% of CR and 72.64% of RB5 could be decolorized by E. faecalis R1107 within 48 h when the concentration of azo dyes increased up to 1000 mg/L. FTIR analysis confirmed that E. faecalis R1107 could effectively break down the chemical structures of three azo dyes. E. faecalis R1107 alleviated the phytotoxicity of azo dyes and improved seed germination, which contributed to the increase in the lengths of roots, stems, and leaves of Vigna radiata seedlings. Transcriptomic analysis suggested that the gene regulatory networks in E. faecalis R1107 synergistically improved the degradation and detoxification of RB5, including the major metabolic pathways, the secondary metabolism, the transport system, the amino acid metabolic pathways, and the signal transduction systems. Simulated textile effluent (STE) was used to mimic real textile effluent to evaluate the bioremediation potential of E. faecalis R1107, and 72.79% STE can be decolorized after E. faecalis R1107 treatment for 48 h. In summary, our study demonstrated that E. faecalis R1107 might be well suitable for potential applications in the bioremediation of textile effluent.
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Affiliation(s)
- Rui Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Huanan Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Yanfang Liu
- Hubei Academy of Scientific and Technical Information, Wuhan 430071, PR China
| | - Jianhui Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Fang Peng
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, PR China
| | - Zhengbing Jiang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Jiashu Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China.
| | - Huiting Song
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, PR China.
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Verma S, Kim KH, Kumar N, Bhattacharya SS, Naushad M, Dutta RK. Amine-amide functionalized graphene oxide sheets as bifunctional adsorbent for the removal of polar organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128308. [PMID: 35086035 DOI: 10.1016/j.jhazmat.2022.128308] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/24/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Effective mitigation of polar organic impurities from industrial effluents is a global environmental challenge. Here, we describe the solvothermal synthesis of ammonia-functionalized graphene oxide (NH3GO) sheets for adsorptive removal of diverse organic pollutants, such as cationic dye basic blue 41 (BB41), anionic dye methyl orange (MO), and ionic 4-nitrophenol (4-NP), in aqueous media. Structural analysis of NH3GO suggest a potent role of surface acidic and basic binding sites in adsorption of targets through an interplay of dynamic experimental variables, e.g., contact time, pH, initial adsorbate concentration, adsorbent mass, and temperature. At an initial pollutant concentration of 20 mg/L, equilibrium adsorption capacities for BB41, MO, and 4-NP were estimated at 199.5, 64.0, and 54.1 mg/g, respectively, with corresponding partition coefficients of 4156, 79.4, and 14.3 L/g, respectively. Experimental data of all three organic pollutants are best fitted by the pseudo-second-order kinetic model. The adsorption isotherm of BB41 follows a multilayer adsorption pattern, while those of MO and 4-NP fit into a monolayer adsorption pattern. The endothermic and spontaneous nature of the adsorption processes has also been explored for the three targets on NH3GO based on thermodynamic analysis. The prepared NH3GO sheets appear to be a promising adsorbent for the removal of polar organic dyes and aromatics in the solution phase.
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Affiliation(s)
- Swati Verma
- Department of Chemistry, Indian Institute of Technology Roorkee, Uttarakhand 247667, India; Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, South Korea
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, South Korea.
| | - Navneet Kumar
- Department of Electronic Engineering, Hanyang University, 222 Wangsimmni-Ro, Seoul 04763, South Korea
| | - Satya Sundar Bhattacharya
- Soil and Agro Bio-engineering Lab, Department of Environmental Science, Tezpur University, Tezpur 784 028, India
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Raj Kumar Dutta
- Department of Chemistry, Indian Institute of Technology Roorkee, Uttarakhand 247667, India.
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Padha S, Kumar R, Dhar A, Sharma P. Microplastic pollution in mountain terrains and foothills: A review on source, extraction, and distribution of microplastics in remote areas. ENVIRONMENTAL RESEARCH 2022; 207:112232. [PMID: 34687754 DOI: 10.1016/j.envres.2021.112232] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 10/13/2021] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
Microplastic (MP) pollution is a critical environmental concern that exists within different mountain ecosystem compartments. This review paper highlights the source, sampling, distribution, and behavior of MPs in mountain terrains and foothills. Atmospheric transport and tourism are major sources of MP pollution in mountain ecosystems. Snow samples provide the maximum concentration of MPs compared to that of stream or ice core samples. Precipitation events considerably influence MP deposition and fallout in mountains and glaciers. PE, PP, PS, polyester, and PVC are common plastic polymers with diverse shapes, such as fibers, fragments, films, and pellets. Ecological concerns and stress due to MP accumulated in natural ecosystems have also been discussed, with considerable focus on MP transport and distribution dynamics at higher altitudes as prospects for future research. A remarkable knowledge gap was observed regarding the MP pathways in the mountainous ecosystems and the assessment of microplastic-associated additives, such as heavy metals and other toxic chemicals, including the evidence of nano-sized plastics. Furthermore, studies on the ecological and biological risks posed by MPs on remote mountains is severely limited with respect to global climate change, biodiversity loss, and influence on ecosystem services.
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Affiliation(s)
- Shaveta Padha
- Department of Zoology, Central University of Jammu, Jammu and Kashmir, 181143, India
| | - Rakesh Kumar
- School of Ecology and Environment Studies, Nalanda University, Rajgir, Bihar, 803116, India
| | - Anjali Dhar
- Department of Zoology, Central University of Jammu, Jammu and Kashmir, 181143, India.
| | - Prabhakar Sharma
- School of Ecology and Environment Studies, Nalanda University, Rajgir, Bihar, 803116, India.
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Kamran U, Bhatti HN, Noreen S, Tahir MA, Park SJ. Chemically modified sugarcane bagasse-based biocomposites for efficient removal of acid red 1 dye: Kinetics, isotherms, thermodynamics, and desorption studies. CHEMOSPHERE 2022; 291:132796. [PMID: 34774614 DOI: 10.1016/j.chemosphere.2021.132796] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 05/07/2023]
Abstract
Novel eco-friendly and economically favourable chemically modified biosorbents and biosomposites from sugarcane bagasse (SB) has been investigated for the first time for efficient removal of Acid red 1 dye from wastewater. As fabricated biosorbents and biocomposites were characterized analytically. Batch adsorption experiments has been performed to optimize operating parameters and the determined optimum conditions are; pH: 2, dose: 0.05 g, contact time: between 60 and 75 min, initial dye concentration: 400 mg L-1, and temperature: 30 °C, at which maximum Acid red 1 dye removal capacities were found (within range of 143.4-205.1 mg g-1) by as-designed SB-derived chemically modified biosorbents and biocomposites. This high adsorption capacity was accompanied due to its large specific surface area (30.19 m2 g-1) and excessive functional active binding sites. In terms of the nature of adsorption process, kinetic and isothermal studies demonstrated that experimental data shows greater fitness with pseudo 2nd order and Langmuir model. Thermodynamics analysis revealed that the adsorption process is spontaneous, feasible, and exothermic in nature. Adsorption selective studies signifies that lower concentration of co-existing metallic ions were not interfered during the removal of Acid red 1 dye, which confirms that under optimized adsorption conditions the biosorbents and biocomposites exhibited greater affinity for dye molecules. The excessive quantity (82%) of loaded dye molecules within the adsorbents were extracted within the NaOH eluting media which predicts that as designed biocomposites could have capability of reusability. Hence, it is anticipated that this type of novel SB-derived biocomposites could be considered as greener potential candidate material for commercial scale dye removal applications from industrial wastewater.
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Affiliation(s)
- Urooj Kamran
- Department of Chemistry, Inha University, 100 Inharo, Incheon, 22212, South Korea
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan.
| | - Saima Noreen
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Muhammad Asif Tahir
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Soo-Jin Park
- Department of Chemistry, Inha University, 100 Inharo, Incheon, 22212, South Korea.
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Gangwar J, Sebastian JK. Unlocking the potential of biosynthesized zinc oxide nanoparticles for degradation of synthetic organic dyes as wastewater pollutants. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:3286-3310. [PMID: 34850728 DOI: 10.2166/wst.2021.430] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The azo dyes released into water from different industries are accumulating in the water bodies and bioaccumulating within living systems thereby affecting environmental health. This is a major concern in developing countries where stringent regulations are not followed for the discharge of industrial waste into water bodies. This has led to the accumulation of various pollutants including dyes. As these developing countries also face acute water shortages and due to the lack of cost-effective systems to remove these pollutants, it is essential to remove these toxic dyes from water bodies, eradicate dyes, or generate fewer toxic derivatives. The photocatalysis mechanism of degradation of azo dyes has gained importance due to its eco-friendly and non-toxic roles in the environment. The zinc nanoparticles act as photocatalysts in combination with plant extracts. Plant-based nanoparticles over the years have shown the potential to degrade dyes efficiently. This is carried out by adjusting the dye and nanoparticle concentrations and combinations of nanoparticles. Our review article considers increasing the efficiency of degradation of dyes using zinc oxide (ZnO) nanoparticles and understanding the photocatalytic mechanisms in the degradation of dyes and the toxic effects of these dyes and nanoparticles in different tropic levels.
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Affiliation(s)
- Jaya Gangwar
- Department of Life Sciences, Christ University, Bangalore, Karnataka, India E-mail:
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18
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Gita S, Shukla SP, Deshmukhe G, Singh AR, Choudhury TG, Singh AK. Adsorption-biodegradation coupled remediation process for the efficient removal of a textile dye through chemically functionalized sugarcane bagasse. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:2223-2236. [PMID: 34076310 DOI: 10.1002/wer.1595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/17/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
Textile dye effluents have many deleterious effects; therefore, it is essential to remove before releasing into waterbodies. This study developed a two-step process for decolorization of textile dye using sugarcane bagasse (SCB). The first step of the process involved functionalization of SCB with alginic acid and applying as packing material in column and assessing its performance for adsorptive removal of Drimarene red. The designed column showed 90% removal of the dye in dye-aqueous solution whereas 80% removal in dye-house wastewater. Adsorption capacity was increased at first 10 min and then gradually decreased with time. Breakthrough point was not achieved during the 60 min of experiment. Three non-equilibrium models were applied to understand the column bed properties. In the second step, the adsorbed dye molecules in SCB were degraded using an edible fungus Pleurotus sp. to obtain a dye-free nitrogen-rich bagasse. The fungus-treated SCB showed no residual toxicity and a considerable improvement in nitrogen content (from 0.14% to 0.62%) was noticed after the study of elemental profile. New design of the column bed, the processes of the chemical functionalization of the SCB, and bioremediation of dye treated bagasse through Pleurotus sp. offer a novel solution for efficient and safe disposal of textile dyes. PRACTITIONER POINTS: Two-step process for remediation of a textile dye using an agrowaste and Pleurotus sp. Chemical functionalization of an agrowaste for enhanced dye removal. New process of adsorption-fungal degradation for safe disposal of the dyes. Novel technology for a sustainable use of the agrowaste for environmental safety.
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Affiliation(s)
- Samchetshabam Gita
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Mumbai, India
- College of Fisheries, CAU (I), Agartala, India
| | - Satya Prakash Shukla
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | - Geetanjali Deshmukhe
- Fisheries Resource & Post-harvest Division, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | | | | | - Ashutosh Kumar Singh
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Mumbai, India
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19
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Gita S, Shukla SP, Deshmukhe G, Choudhury TG, Saharan N, Singh AK. Toxicity Evaluation of Six Textile Dyes on Growth, Metabolism and Elemental Composition (C, H, N, S) of Microalgae Spirulina platensis: The Environmental Consequences. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:302-309. [PMID: 33388901 DOI: 10.1007/s00128-020-03074-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
A concentration-dependent decrease in growth rate and pigment concentration of the blue-green alga Spirulina platensis was recorded after the exposure to graded (5-40 ppm) concentration of six textile dyes. The profile of vital elements (C, H, N, S) also showed a significant variation due to dye toxicity. The algal population showed up to 50% decrease in protein content after exposure to the dyes. Among the pigments, the dye exposure resulted in > 90% decreases in phycocyanin however, total chlorophyll and carotenoids exhibited up to a 50% decrease compared to control. The findings indicate that the unregulated discharge of textile dyes will directly impact the photoautotrophic organisms leading to ecological imbalance in aquatic ecosystems. Overall observations of the report provide baseline information about the toxicity of textile dyes and giving a better insight into the little-understood mechanisms of dye toxicity.
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Affiliation(s)
- Samchetshabam Gita
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, 400061, India
- College of Fisheries, CAU (I), Agartala, 799210, Tripura, India
| | - Satya Prakash Shukla
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, 400061, India.
| | | | | | - Neelam Saharan
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, 400061, India
| | - Ashutosh Kumar Singh
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, 400061, India
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20
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Kumar A. Current and Future Perspective of Microalgae for Simultaneous Wastewater Treatment and Feedstock for Biofuels Production. CHEMISTRY AFRICA 2021. [DOI: 10.1007/s42250-020-00221-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Abstract
The contamination of aquatic environments by microplastics has been largely documented in the last years, especially in oceans, rivers, and lakes, but their occurrence in remote mountain lakes has been scarcely considered. This work aims to investigate the presence and abundance of microplastics and fibres in a remote, alpine, and uninhabited lake in Switzerland (Sassolo). In this study, the water column as well as the sediments were analysed. The isolation of microplastics and fibres from the samples of the sediment was achieved with a digestion process using H2O2 and a density separation technique with NaI. Classification of microparticles (from 5 mm to 125 μm) was first developed with an optical microscope. Infrared spectroscopy was then used to identify and characterize the chemical nature of the microplastics and fibres. On average, 2.6 microplastics and 4.4 fibres per litre were identified in the water column. On the other hand, the results of the sediment samples revealed significant fibre concentrations compared to plastic microparticles (514 fibres and 33 microplastics per kilogram). The most abundant types of microplastic identified in the samples were composed of polyethylene (PE) and polypropylene (PP). Microplastic and fibre sources were not determined, but it is likely that the number of human activities in this area as well as aerial deposition are contributing to contaminate this remote environment with microplastics and fibres.
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Wang Z, Gao D, Zhan Y, Xing C. Enhancing the Light Coverage of Photosynthetic Bacteria to Augment Photosynthesis by Conjugated Polymer Nanoparticles. ACS APPLIED BIO MATERIALS 2020; 3:3423-3429. [PMID: 35025384 DOI: 10.1021/acsabm.0c00352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
By coating photosynthetic bacteria of Rhodopseudomonas palustris with conjugated polymers nanoparticles modified with positively charged peptide TAT (CPNs-TAT), a bio-optical hybrid composite of R. palustris/CPNs-TAT has been constructed. R. palustris/CPNs-TAT augments the light coverage of R. palustris to broaden the R. palustris absorption due to excellent light-harvesting properties of CPNs-TAT, especially in the ultraviolet region. It leads to converting ultraviolet light to visible light that could be absorbed by R. palustris, allowing antenna systems around the reaction center (RC) of the photosynthetic membrane to absorb more photons, thus photons are excited and transferred to the RC where the electron-hole separation occurs. Therefore, R. palustris/CPNs-TAT improves adenosine triphosphate (ATP) synthesis by increasing proton gradient, resulting in the enhancement of the photosynthetic activity. This effort combines synthetic light-harvesting materials with photosynthetic bacteria without complicated genetic techniques to obtain the hybrid bio-optical systems for augmenting photosynthesis beyond natural photosynthetic bacteria.
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Affiliation(s)
- Zijuan Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China.,Key Laboratory of Hebei Province for Molecular Biophysics, Institute of Biophysics, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Dong Gao
- Key Laboratory of Hebei Province for Molecular Biophysics, Institute of Biophysics, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Yong Zhan
- Key Laboratory of Hebei Province for Molecular Biophysics, Institute of Biophysics, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Chengfen Xing
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China.,Key Laboratory of Hebei Province for Molecular Biophysics, Institute of Biophysics, Hebei University of Technology, Tianjin 300130, P. R. China
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23
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Nisar R, Arooj B, Muneer B, Gul R, Saleem M. Analysis of remediation potential of whole bacterial cells on wastewater decolourisation and detoxification. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ranjith KS, Satilmis B, Huh YS, Han YK, Uyar T. Highly selective surface adsorption-induced efficient photodegradation of cationic dyes on hierarchical ZnO nanorod-decorated hydrolyzed PIM-1 nanofibrous webs. J Colloid Interface Sci 2019; 562:29-41. [PMID: 31830629 DOI: 10.1016/j.jcis.2019.11.096] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/22/2019] [Accepted: 11/23/2019] [Indexed: 12/12/2022]
Abstract
Selectivity of catalysts toward harmful cationic pollutants in industrial wastewater remains challenging but is of crucial importance in environmental remediation processes. Here, we present a complex network of a hydrolyzed polymer of intrinsic microporosity (HPIM)-based electrospun nanofibrous web with surface functional decoration of ZnO nanorods (NRs) as a hierarchical platform for selective and rapid degradation of cationic dyes. Over a single species or binary mixtures, cationic dyes were selectively adsorbed by the HPIM surface, which then rapidly degraded under simultaneous photoirradiation through the ZnO NRs. Both HPIM and ZnO exhibited high electronegative surfaces, which induced the selectivity towards the cationic dyes and rapidly degraded the pollutants with the production of reactive oxygen species under photoirradiation. Further, as a free-standing web, the catalytic network could be easily separated and reused without any significant loss of catalytic activity after multiple cycles of use. The hierarchical platform of ZnO/HPIM-based heterostructures could be a promising catalytic template for selective degradation of synthetic dyes in mixed wastewater samples.
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Affiliation(s)
- Kugalur Shanmugam Ranjith
- Institute of Materials Science & Nanotechnology, Bilkent University, Ankara 06800, Turkey; Department of Energy and Material Engineering, Dongguk University, Seoul 04620, Republic of Korea.
| | - Bekir Satilmis
- Institute of Materials Science & Nanotechnology, Bilkent University, Ankara 06800, Turkey; Department of Medical Services and Techniques, Vocational School of Health Services, Kirsehir Ahi Evran University, Kirsehir 40100, Turkey
| | - Yun Suk Huh
- Department of Biological Engineering, Inha University, Incheon 22122, Republic of Korea
| | - Young-Kyu Han
- Department of Energy and Material Engineering, Dongguk University, Seoul 04620, Republic of Korea.
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology, Bilkent University, Ankara 06800, Turkey; Department of Fiber Science & Apparel Design, Cornell University, Ithaca, NY 14853, United States.
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25
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Hernández-Zamora M, Martínez-Jerónimo F. Exposure to the azo dye Direct blue 15 produces toxic effects on microalgae, cladocerans, and zebrafish embryos. ECOTOXICOLOGY (LONDON, ENGLAND) 2019; 28:890-902. [PMID: 31392637 DOI: 10.1007/s10646-019-02087-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Aquatic pollution caused by dyes has increased together with the growth of activities using colorants such as the textile, leather, food, and agrochemicals industries. Because most popular azo dyes are synthesized from benzidine, a carcinogenic compound, a threat to aquatic biota could be expected. The use of single species for toxicity assessment provides limited data, so a battery of test organisms, including representatives of different trophic levels such as algae, zooplankters, and fish, could undoubtedly provide more information. Therefore, our study was aimed at evaluating the toxic effect of the azo dye Direct blue 15 (DB15) on a battery of bioassays using a primary producer (Pseudokirchneriella subcapitata), a primary consumer (Ceriodaphnia dubia), and a secondary consumer (Danio rerio). P. subcapitata was more sensitive to DB15 (IC50 = 15.99 mg L-1) than C. dubia (LC50: 450 mg L-1). In the algae exposed to DB15, chlorophyll-a and -b were significantly increased, and carotenoids were reduced. The concentrations of protein, carbohydrates, and lipids per cell in P. subcapitata exposed to all DB15 concentrations were significantly higher than that measured in control. At 25 mg L-1 of DB15, survival, total progeny, and the number of released clutches were significantly decreased, and the start of reproduction was delayed in C. dubia. DB15 did not induce lethal or sublethal effects in D. rerio embryos at any of the tested concentrations from 24 to 72 h post-fertilization (hpf), but from 96 to 144 hpf, the larvae exposed to 100 and 500 mg L-1 developed yolk sac edema, curved tail, and skeletal deformations. After 144 hpf, DB15 produced a significant increase in embryos without a heartbeat, as the concentration of dye raised. The textile-used, azo dye DB15, caused toxic effects of different magnitude on microalgae, cladocerans, and zebrafish embryos; for this reason, the discharge of this colorant into waterbodies should be regulated to prevent environmental impacts.
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Affiliation(s)
- Miriam Hernández-Zamora
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas. Laboratorio de Hidrobiología Experimental. Prolongación de Carpio y Plan de Ayala s/n, Colonia Santo Tomás, C.P, 11340, Mexico City, CDMX, Mexico
| | - Fernando Martínez-Jerónimo
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas. Laboratorio de Hidrobiología Experimental. Prolongación de Carpio y Plan de Ayala s/n, Colonia Santo Tomás, C.P, 11340, Mexico City, CDMX, Mexico.
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