1
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Park YH, Kim S, Yun S, Choi YE. Enhancement of adsorption of cyanobacteria, Microcystisa aeruginosaby bacterial-based compounds. CHEMOSPHERE 2024; 361:142430. [PMID: 38844105 DOI: 10.1016/j.chemosphere.2024.142430] [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: 03/06/2024] [Revised: 05/10/2024] [Accepted: 05/23/2024] [Indexed: 06/16/2024]
Abstract
In the present study, algicidal bacteria cultivated in an aqueous medium were utilized as a surface modification agent to develop an efficient adsorbent for the removal of Microcystis aeruginosa. The modification considerably enhanced M. aeruginosa cell removal efficiency. Moreover, the introduction of bio-compounds ensured specificity in the removal of M. aeruginosa. Additionally, the cyanotoxin release and acute toxicity tests demonstrated that the adsorption process using the developed adsorbent is environmentally safe. Furthermore, the practical feasibility of the adsorptive removal of M. aeruginosa was confirmed through cell removal tests performed using the developed adsorbent in a scaled-up reactor (50 L and 10 tons). In these tests, the effects of the adsorbent application type, water temperature, and initial cell concentration on the M. aeruginosa removal efficiency were evaluated. The results of this study provide novel insights into the valorization strategy of biological algicides repurposed as adsorbents, and provide practical operational data for effective M. aeruginosa removal in scaled-up conditions.
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Affiliation(s)
- Yun Hwan Park
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sok Kim
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea; OJeong Resilience Institute, Korea University, Seoul, 02841, Republic of Korea
| | - Sungho Yun
- Kwanglim Precision Research Institute, Daegu, 43013, Republic of Korea
| | - Yoon-E Choi
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
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2
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Park YH, Kim S, Choi JS, Chung J, Choi JS, Choi YE. Chitosan-modified cotton fiber: An efficient and reusable adsorbent in removal of harmful cyanobacteria, Microcystis aeruginosa from aqueous phases. CHEMOSPHERE 2024; 349:140679. [PMID: 37967676 DOI: 10.1016/j.chemosphere.2023.140679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 11/17/2023]
Abstract
In the present study, to remove harmful cyanobacterial species Microcystis aeruginosa from aqueous phases, adsorption-based strategy was utilized. For this strategy, the surface of cotton fiber was modified using chitosan molecules to develop a highly efficient and ecofriendly adsorbent in removal of Microcystis aeruginosa from aqueous solution. The pristine cotton fiber could not remove M. aeruginosa, while the chitosan-modified cotton (CS-m-Cotton) showed the 95% of cell removal efficiency within 12 h. The surface characteristics of chitosan-modified cotton compared to the pristine cotton fiber was examined by various surface analysis methods. In addition, the pre-treatment of pristine cotton using sodium hydroxide solution was an important factor for enhancement of chitosan modification efficiency on the cotton fiber. The developed chitosan-modified cotton fiber could be reusable for M. aeruginosa cell removal after the simple desorption treatment using ultrasonication in alkaline solution. During the repeated adsorbent regeneration and reuse, the chitosan-modified cotton maintained its M. aeruginosa removal efficiencies (>90%). From the acute toxicity assessment using the chitosan-modified cotton and, the measurements of chemical oxygen demand and microcystin level changes in the M. aeruginosa treatment process using the adsorbent, the environmental safety of the adsorption strategy using the developed adsorbent could be confirmed. Based on our results, the chitosan-modified cotton fiber could be proposed as an efficient and ecofriendly solution for remediation of harmful cyanobacterial species occurring water resources.
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Affiliation(s)
- Yun Hwan Park
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sok Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea; OJeong Resilience Institute, Korea University, Seoul, 02841, Republic of Korea
| | - Jeong Sik Choi
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jooeun Chung
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jong-Soon Choi
- Division of Analytical Science, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea; Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea.
| | - Yoon-E Choi
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
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3
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Rocha MF, Vieira Magalhães-Ghiotto GA, Bergamasco R, Gomes RG. Cyanobacteria and cyanotoxins in the environment and water intakes: Reports, diversity of congeners, detection by mass spectrometry and their impact on health. Toxicon 2024; 238:107589. [PMID: 38160739 DOI: 10.1016/j.toxicon.2023.107589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/13/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Cyanobacteria are aquatic microorganisms of high interest for research due to the production of secondary metabolites, among which the most popular are cyanotoxins, responsible for causing severe poisoning in humans and animals through ingestion or contact with contaminated water bodies. Monitoring the number of cyanobacteria in water and concentrations of secreted cyanotoxins with the aid of sensitive and reliable methods is considered the primary action for evaluating potentially toxic blooms. There is a great diversity of methods to detect and identify these types of micro contaminants in water, differing by the degree of sophistication and information provided. Mass Spectrometry stands out for its accuracy and sensitivity in identifying toxins, making it possible to identify and characterize toxins produced by individual species of cyanobacteria, in low quantities. In this review, we seek to update some information about cyanobacterial peptides, their effects on biological systems, and the importance of the main Mass Spectrometry methods used for detection, extraction, identification and monitoring of cyanotoxins.
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Affiliation(s)
- Mariana Fernandes Rocha
- Department of Biotechnology, Genetics and Cell Biology, Biological Sciences Center, State University of Maringá, Maringá, Paraná, 87020-900, Brazil.
| | - Grace Anne Vieira Magalhães-Ghiotto
- Department of Biotechnology, Genetics and Cell Biology, Biological Sciences Center, State University of Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Rosângela Bergamasco
- Department of Chemical Engineering, Technology Center, State University of Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Raquel Guttierres Gomes
- Department of Food Engineering, Technology Center, State University of Maringá, Maringá, Paraná, 87020-900, Brazil
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4
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Sheeba KRJ, Priya RK, Arunachalam KP, Shobana S, Avudaiappan S, Flores ES. Examining the physico-chemical, structural and thermo-mechanical properties of naturally occurring Acacia pennata fibres treated with KMnO 4. Sci Rep 2023; 13:20643. [PMID: 38001118 PMCID: PMC10673877 DOI: 10.1038/s41598-023-46989-x] [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: 03/23/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Natural fiber is a viable and possible option when looking for a material with high specific strength and high specific modulus that is lightweight, affordable, biodegradable, recyclable, and eco-friendly to reinforce polymer composites. There are many methods in which natural fibres can be incorporated into composite materials. The purpose of this research was to evaluate the physico-chemical, structural, thermal, and mechanical properties of Acacia pennata fibres (APFs). Scanning electron microscopy was used to determine the AP fibers' diameter and surface shape. The crystallinity index (64.47%) was discovered by XRD. The irregular arrangement and rough surface are seen in SEM photos. The findings demonstrated that fiber has high levels of cellulose (55.4%), hemicellulose (13.3%), and low levels of lignin (17.75%), which were determined through chemical analysis and validated by Fourier Transform Infrared Spectroscopy (FTIR). By using FTIR, the functional groups of the isolated AP fibers were examined, and TG analysis was used to look into the thermal degrading behaviour of the fibers treated with potassium permanganate (KMnO4) Due to their low density (520 kg/m3) and high cellulose content (55.4%), they have excellent bonding qualities. Additionally, tensile tests were used for mechanical characterisation to assess their tensile strength (685 MPa) and elongation.
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Affiliation(s)
- K R Jaya Sheeba
- PG & Research Department of Physics, Holy Cross College (Autonomous), Nagercoil, Affiliated to Manonmanium Sundaranar University, Tirunelveli, Tamil Nadu, 629004, India
| | - Retnam Krishna Priya
- PG & Research Department of Physics, Holy Cross College (Autonomous), Nagercoil, Affiliated to Manonmanium Sundaranar University, Tirunelveli, Tamil Nadu, 629004, India.
| | - Krishna Prakash Arunachalam
- Department of Civil Engineering, University College of Engineering Nagercoil, Anna University, Nagercoil, 629004, India
| | - S Shobana
- Green Technology and Sustainable Development in Construction Research Group, Van Lang School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Siva Avudaiappan
- Departamento de Ingeniería Civil, Universidad de Concepción, 4070386, Concepción, Chile.
- Centro Nacional de Excelencia Para la Industria de la Madera (CENAMAD), Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 8331150, Santiago, Chile.
- Department of Physiology, Saveetha Dental College and Hospitals, SIMATS, Chennai, 600077, India.
| | - Erick Saavedra Flores
- Departamento de Ingeniería en Obras Civiles, Universidad de Santiago de Chile, Av. Ecuador 3659, Estación Central, Santiago, Chile
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5
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Sheeba KRJ, Alagarasan JK, Dharmaraja J, Kavitha SA, Shobana S, Arvindnarayan S, Vadivel M, Lee M, Retnam KP. Physico-chemical and extraction properties on alkali-treated Acacia pennata fiber. ENVIRONMENTAL RESEARCH 2023; 233:116415. [PMID: 37343749 DOI: 10.1016/j.envres.2023.116415] [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: 10/31/2022] [Revised: 04/30/2023] [Accepted: 06/12/2023] [Indexed: 06/23/2023]
Abstract
The production of reinforced composite materials can generally benefit greatly from the use of natural cellulosic woody fibers as good sustainable resources. Natural plants like hemp, cotton, and bamboo are great options for knitters and crocheters looking to make eco-friendly goods. The current study examines the properties of natural fiber obtained from the stem of the Acacia pennata (AP) plant, as well as its basic physico-chemical, structural, thermal, and mechanical characteristics. The key goal of this work was to investigate how alkali treatment affected the AP fibers' morphology, chemical composition, tensile capabilities, morphological changes, structural changes, and thermal degradation (APFs). The SEM image and pXRD analyses support the improved surface roughness of the fiber, and that was seen after the alkaline treatment. From XRD analysis, the fiber crystallinity index (54.65%) was improved and it was connected to their SEM pictograms in comparison to untreated APF. Alkali-treated AP fibers include a higher percentage of chemical components including cellulose (51.38%) and ash (5.13%). Alkali-treated AP fibers have a lower amount of hemi-cellulose (30.30%), lignin (20.96%), pectin (8.77%), wax (0.12%), and moisture (13.44%) than untreated APF. Their low density and high cellulosic content will improve their ability to fiber matrices. The thermal behavior of AP fiber at various temperatures was demonstrated by TG-DTA analysis, and tensile strength was also investigated.
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Affiliation(s)
- K R Jaya Sheeba
- PG & Research Department of Physics, Holy Cross College (Autonomous), Nagercoil, India; Manonmanium Sundaranar University, Tirunelveli, 627012, Tamil Nadu, India
| | | | - Jeyaprakash Dharmaraja
- Division of Chemistry, AAA College of Engineering and Technology, Amathur, 626005, Virudhunagar District, Tamil Nadu, India
| | - S Anne Kavitha
- PG & Research Department of Physics, Holy Cross College (Autonomous), Nagercoil, India; Manonmanium Sundaranar University, Tirunelveli, 627012, Tamil Nadu, India
| | - Sutha Shobana
- Green Technology and Sustainable Development in Construction Research Group, Van Lang School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Sundaram Arvindnarayan
- Department of Mechanical Engineering, Lord Jegannath College of Engineering and Technology, Marungoor, 629402, Kanyakumari District, Tamil Nadu, India
| | - Manoharan Vadivel
- Department of Mechanical Engineering and Chemistry & Research Centre, Mohamed Sathak Engineering College, Kilakarai, 623 806, Ramanathapuram, Tamil Nadu, India
| | - Moonyong Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, 712-749, South Korea.
| | - Krishna Priya Retnam
- PG & Research Department of Physics, Holy Cross College (Autonomous), Nagercoil, India; Manonmanium Sundaranar University, Tirunelveli, 627012, Tamil Nadu, India.
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6
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Wang M, Ao Z, Gong Z, Ma R, Wang Q, Yang L, Gao Y. Deactivation of cyanobacteria blooms and simultaneous recovery phosphorus through electrolysis method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82574-82583. [PMID: 35752668 DOI: 10.1007/s11356-022-21533-y] [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: 09/20/2021] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
A novel method for remediating eutrophic lakes through electrolysis was made possible by one titanium (Ti) mesh, which serves as a cathode and two anodes of Ti mesh coated with ruthenium (IV) oxide and iridium (IV) oxide (RuO2-IrO2/Ti). Once the three-electrode components RuO2-IrO2/Ti and Ti are stabilized, they can carry out electrolytic reaction to control cyanobacteria blooms and assist with the remediation of eutrophic water. The order of influence on the theoretical energy consumption involved in removing algae is as follows: The electrode spacing was more effective than electrode voltage, which proved more effective than electrolysis time through the orthogonal test method. Thus, an electrode spacing of 60 mm, an electrode voltage of 30 V, and an electrolysis time of 12 h are the optimal electrolysis methods used to remove cyanobacterial blooms. The strong acidic environment produced by the anode increased the concentration of hydroxyl radical (•OH) and other strong oxidizing substances, which were the main roles that made cyanobacteria bloom inactivation. The electrolysis reaction was conducive to the transformation of organophosphorus in cyanobacterial blooms to dissolved inorganic phosphorus (DIP) in water. Some DIP was most deposited on the cathode after electro-depositing enhanced the removal of P in water with the 12-h prolonged electrolysis time. Meanwhile, it was beneficial to reduce the total nitrogen (TN) and ammonia nitrogen (NH3-N) in the water. Thus, electrolysis proved to be an effective way to the inactivation of cyanobacteria blooms and simultaneously recover P as the concentration became higher.
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Affiliation(s)
- Mingxuan Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210046, People's Republic of China
| | - Ziwei Ao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210046, People's Republic of China
| | - Zhengwen Gong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210046, People's Republic of China
| | - Runhua Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210046, People's Republic of China
| | - Qing Wang
- Yixing Environmental Research Institute of Nanjing University, Yixing, 214200, People's Republic of China
| | - Liuyan Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210046, People's Republic of China
| | - Yan Gao
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China.
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7
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Pak GT, Jo S, Kim TH, Lee KW, Huh TH, Kwark YJ, Yang HM, Lee TS. Fabrication of a porous polyacrylonitrile nanofiber adsorbent for removing radioactive 60Co. CHEMOSPHERE 2022; 302:134910. [PMID: 35551933 DOI: 10.1016/j.chemosphere.2022.134910] [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: 03/03/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
A Co2+ adsorbent was prepared using electrospun porous polyacrylonitrile (PAN) nanofibers, featuring easy recovery for reuse compared with a nanoparticle-based adsorbent. As an efficient ligand for Co2+, ethylenediaminetetraacetic acid (EDTA) was introduced on the surface of porous PAN nanofibers with the aid of a branched polyethyleneimine (PEI) linker to obtain an adsorbent with carboxylic acid groups. On the adsorbent surface, the carboxylic acid and amine groups from EDTA could adsorb Co2+ via ion exchange and chelation, and amine groups from PEI that remained after EDTA functionalization played a role in coordinating Co2+. The amine and carboxylic acid groups were simultaneously involved in the adsorption on the surface, making it possible to remove Co2+ over a wide pH range. An investigation of the adsorption isotherms and kinetics of the nanofibrous adsorbent indicated that monolayer chemisorption was achieved with a maximum Co2+ adsorption capacity of 8.32 mg/g. In addition, radioactive 60Co was efficiently removed by the adsorbent with a removal extent of more than 98%. Considering the easy separation from Co2+ solution and regeneration of the nanofibrous adsorbent and its availability in a wide pH range, the adsorbent has great advantages in practical applications.
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Affiliation(s)
- Geun Tae Pak
- Organic and Optoelectronic Materials Laboratory, Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, 34134, South Korea
| | - Seonyoung Jo
- Organic and Optoelectronic Materials Laboratory, Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, 34134, South Korea
| | - Tae Hyun Kim
- Organic and Optoelectronic Materials Laboratory, Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, 34134, South Korea
| | - Keun-Woo Lee
- Organic and Optoelectronic Materials Laboratory, Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, 34134, South Korea
| | - Tae-Hwan Huh
- Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul, 06978, South Korea
| | - Young-Je Kwark
- Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul, 06978, South Korea
| | - Hee-Man Yang
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, 34057, South Korea.
| | - Taek Seung Lee
- Organic and Optoelectronic Materials Laboratory, Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, 34134, South Korea.
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8
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Kong Y, Wang Y, Miao L, Mo S, Li J, Zheng X. Recent Advances in the Research on the Anticyanobacterial Effects and Biodegradation Mechanisms of Microcystis aeruginosa with Microorganisms. Microorganisms 2022; 10:microorganisms10061136. [PMID: 35744654 PMCID: PMC9229865 DOI: 10.3390/microorganisms10061136] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/28/2022] [Accepted: 05/29/2022] [Indexed: 02/04/2023] Open
Abstract
Harmful algal blooms (HABs) have attracted great attention around the world due to the numerous negative effects such as algal organic matters and cyanobacterial toxins in drinking water treatments. As an economic and environmentally friendly technology, microorganisms have been widely used for pollution control and remediation, especially in the inhibition/biodegradation of the toxic cyanobacterium Microcystis aeruginosa in eutrophic water; moreover, some certain anticyanobacterial microorganisms can degrade microcystins at the same time. Therefore, this review aims to provide information regarding the current status of M. aeruginosa inhibition/biodegradation microorganisms and the acute toxicities of anticyanobacterial substances secreted by microorganisms. Based on the available literature, the anticyanobacterial modes and mechanisms, as well as the in situ application of anticyanobacterial microorganisms are elucidated in this review. This review aims to enhance understanding the anticyanobacterial microorganisms and provides a rational approach towards the future applications.
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Affiliation(s)
- Yun Kong
- College of Resources and Environment, Yangtze University, Wuhan 430100, China;
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China; (S.M.); (J.L.); (X.Z.)
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province, Hangzhou 310058, China
- Correspondence: ; Tel./Fax: +86-27-69111182
| | - Yue Wang
- College of Resources and Environment, Yangtze University, Wuhan 430100, China;
| | - Lihong Miao
- School of Biology and Pharmaceutical Engineering, Wuhan Polytechnic University, Wuhan 430023, China;
| | - Shuhong Mo
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China; (S.M.); (J.L.); (X.Z.)
| | - Jiake Li
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China; (S.M.); (J.L.); (X.Z.)
| | - Xing Zheng
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China; (S.M.); (J.L.); (X.Z.)
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9
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Lei M, Yang L, Shen Y, Yang L, Sun J. Efficient Adsorption of Anionic Dyes by Ammoniated Waste Polyacrylonitrile Fiber: Mechanism and Practicability. ACS OMEGA 2021; 6:19506-19516. [PMID: 34368537 PMCID: PMC8340109 DOI: 10.1021/acsomega.1c01780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/18/2021] [Indexed: 05/15/2023]
Abstract
Adsorption is one of the commonly used methods in wastewater treatment, but it has the problem of high cost and a complicated production process. In this paper, a low-cost and efficient decolorizing adsorbent was successfully prepared based on waste polyacrylonitrile fiber (PANF). The waste PANF was ammoniated by propylene diamine derivates (PANAMF), and benzylamine (PANABMF) and quaternary ammonium ions (PANQMF) were introduced for PANAMF to regulate hydrophilicity and hydrophobicity. With acidic red 249 as the model anionic dye, influences of the adsorption center structure, the degree of modification, the concentration of acid, the dye structure, and the auxiliary agent in the solution on the dye adsorption performance were studied. Isothermal models, kinetic models, reusability, and continuous application ability of the fiber adsorbent were discussed. PANAMF, PANABMF, and PANAQF exhibit excellent adsorption performance compared to the common adsorbent. After protonation, the saturation adsorption value can reach 2051.3 mg/g for PANAMF. PANAMF also exhibited excellent reusability, and the adsorption capacity after being reused eight times still can keep 72.7% of that for the first time. The adsorption of the anionic dye for PANAMF is a chemisorption process, and the rate-determining step is changed from the diffuse step to the adsorption on the surface with the adsorption time. PANAMF can also be used in the continuous flow process, and the absorption amount is similar to that in the batch adsorption, which shows excellent commercial application potential.
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Affiliation(s)
- Manjun Lei
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Lihui Yang
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Yifeng Shen
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Lei Yang
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Jie Sun
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
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10
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Kim HS, Park YH, Nam K, Kim S, Choi YE. Amination of cotton fiber using polyethyleneimine and its application as an adsorbent to directly remove a harmful cyanobacterial species, Microcystis aeruginosa, from an aqueous medium. ENVIRONMENTAL RESEARCH 2021; 197:111235. [PMID: 33933491 DOI: 10.1016/j.envres.2021.111235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/19/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
In the present study, we applied an adsorption-based strategy for the removal of a harmful cyanobacterial species, Microcystis aeruginosa, using cotton fiber. Considering the negatively charged surface properties of M. aeruginosa cells in aqueous phases, aminated cotton fibers were prepared through polyethyleneimine (PEI) modification on the pristine cotton fibers. The aminated surface properties of PEI-modified cotton fiber (PEI-cotton) were confirmed by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and potentiometric titration analyses. The pristine cotton fiber could not remove the M. aeruginosa cells, but the PEI-cotton could efficiently remove 98.7% of M. aeruginosa cells from the aqueous medium. In addition, removed cells could be observed on the sorbent surface by field emission scanning electron microscopy (FE-SEM) analysis. PEI-cotton fabricated in 3% PEI solution could remove M. aeruginosa cells (97.9%) more efficiently compared to that fabricated in 1% (82.1%) and 2% (86.2%) of PEI solutions. From the toxicity assessment of the PEI-cotton using Daphnia magna, negligible toxicity of PEI-cotton was confirmed. Our results indicate that the application of PEI-cotton fibers for the removal of M. aeruginosa cells could be suggested as a feasible, effective, and eco-friendly method of harmful algal bloom (HAB) control in water resources.
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Affiliation(s)
- Ho Seon Kim
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Yun Hwan Park
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Kwiwoong Nam
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sok Kim
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea; OJeong Eco-Resilience Institute, Korea University, Seoul, 02841, Republic of Korea.
| | - Yoon-E Choi
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
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