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Miao S, Wei Y, Chen J, Wei X. Extraction methods, physiological activities and high value applications of tea residue and its active components: a review. Crit Rev Food Sci Nutr 2023; 63:12150-12168. [PMID: 35833478 DOI: 10.1080/10408398.2022.2099343] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Tea is a traditional plant beverage originating from China as one of the most popular beverages worldwide, which has been an important companion in modern society. Nevertheless, as the waste after tea processing, tea residues from agriculture, industry and kitchen waste are discarded in large quantities, resulting in waste of resources and environmental pollution. In recent years, the comprehensive utilization of tea residue resources has attracted people's attention. The bioactive components remaining in tea residues demonstrate a variety of health benefits and can be recycled using advanced extraction processes. Furthermore, researchers have been devoted to converting tea residues into derivatives such as biosorbents, agricultural compost, and animal feeds through thermochemical techniques and biotechnology. This review summarized the chemical composition and physiological activities of bioactive components from tea residue. The extraction methods of bioactive components in tea residue were elucidated and the main high-value applications of tea residues were proposed. On this basis, the utilization of tea residues can be developed from a single way to a multi-channel or cascade way to improve its economic efficiency. Novel applications of tea residues in different fields, including food development, environmental remediation, energy production and composite materials, are of far-reaching significance. This review aims to provide new insights into developing the utilization of tea residue using a comprehensive strategy and exploring the mechanism of active components from tea residue on human health and their potential applications in different areas.HighlightsThe composition and function of tea residue active components were introduced.The extraction methods of active components from tea residue were proposed.The main high-value applications of tea residues were summarized.The current limitations and future directions of tea residue utilization were concluded.
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Affiliation(s)
- Siwei Miao
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, PR China
| | - Yang Wei
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, PR China
| | - Jiwang Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Xinlin Wei
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, PR China
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2
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Mehmood T, Khan AU, Raj Dandamudi KP, Deng S, Helal MH, Ali HM, Ahmad Z. Oil tea shell synthesized biochar adsorptive utilization for the nitrate removal from aqueous media. CHEMOSPHERE 2022; 307:136045. [PMID: 35977578 DOI: 10.1016/j.chemosphere.2022.136045] [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: 06/07/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Various reported methods are devoted to nitrate removal from water over the years. However, recently researchers are focusing on developing the materials that offer bio-based, non-toxic, inexpensive and yet an efficient solution for water treatment. In this study, removal of nitrates from water was carried out using oil tea shells (OTS) as a biosorbent. OTS powder was impregnated with ZnCl2 and biochar was prepared which was further treated with Cetyltrimethylammonium bromide (CTAB), a cationic surfactant. Both the Langmuir and the Freundlich models were satisfied by the nitrate adsorption of OTS biochar. The adsorption capacity was measured at 15.6 mg/g when the circumstances were at their best. The pseudo-second-order model provided an accurate description of the kinetic data that were collected from batch trials. The adsorption yield goes up when by usage of more adsorbent, but it goes down when adsorption start with a higher concentration of nitrate. The strong basis of analytical equipments were used to characterize the OTS biosorbent. According to the findings of the research, surface-modified OTS biochar is an effective material for the removal of nitrate from aqueous solutions. This means that it has the potential to be utilized in water treatment as an adsorbent that is both inexpensive and kind to the natural environment. Removal of heavy metals and other organic pollutants, both from groundwater and wastewater using OTS biochar seems like a promising and interesting area of study.
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Affiliation(s)
- Tariq Mehmood
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Rawind Road, Punjab, Lahore, 54000, Pakistan.
| | - Asad Ullah Khan
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Rawind Road, Punjab, Lahore, 54000, Pakistan.
| | - Kodanda Phani Raj Dandamudi
- School for Engineering of Matter, Transport and Energy, Arizona State University, 551 E. Tyler Mall, Tempe, AZ, 85287, United States
| | - Shuguang Deng
- School for Engineering of Matter, Transport and Energy, Arizona State University, 551 E. Tyler Mall, Tempe, AZ, 85287, United States
| | - Mohamed H Helal
- Department of Chemistry, Faculty of Arts and Science, Northern Border University, Rafha, Saudi Arabia
| | - Hazim M Ali
- Department of Chemistry, College of Science, Jouf University, P.O. Box 2014, Sakaka, Aljouf, Saudi Arabia
| | - Zubair Ahmad
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea.
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Sivaranjanee R, Kumar PS, Mahalaxmi S. A Review on Agro-based Materials on the Separation of Environmental Pollutants From Water System. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Guo S, Kumar Awasthi M, Wang Y, Xu P. Current understanding in conversion and application of tea waste biomass: A review. BIORESOURCE TECHNOLOGY 2021; 338:125530. [PMID: 34271498 DOI: 10.1016/j.biortech.2021.125530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/04/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Along with the increasing consumption of tea and its extracts, the amount of tea waste grows rapidly, which not only results in huge biomass loss, but also increases environmental stress. In past years, interest has been attracted on utilization of tea waste biomass, and a lot of work has been carried out. This review summarized the progress in conversion of tea waste by thermo-chemical and biological technologies and analyzed the property of the derived products and their performance in applications. It was found that biochar derived from tea waste had relatively large surface area, porous structures, and abundant functional groups, and could be used as bio-adsorbents and catalysts and electrochemical energy storage, while the cost of its largescale production should be evaluated. Profoundly, biological conversion, including ensiling and composting, was suggested to be an effective way to develop the tea waste biomass in practice due to its low-cost and specific functions.
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Affiliation(s)
- Shasha Guo
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Yuefei Wang
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou 310058, China
| | - Ping Xu
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou 310058, China.
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5
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Equilibrium and thermodynamic investigation of biosorption of nickel from water by activated carbon made from palm kernel chaff. Sci Rep 2021; 11:7808. [PMID: 33833271 PMCID: PMC8032659 DOI: 10.1038/s41598-021-86932-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 03/19/2021] [Indexed: 02/01/2023] Open
Abstract
Novel biosorbents were derived from a waste product of palm kernel oil extraction known as palm kernel chaff (PKC). One portion of the PKC was carbonized in a furnace and then activated chemically, while the other half was activated without carbonization. Both were designated as CPKC and UPKC, respectively. The two biosorbents so produced were then used to conduct batch equilibrium and kinetic sorption studies at 30 °C, 35 °C and 40 °C and pH 3.0 and 9.0 for an agitation period of 5, 10, 20, 40, 60, 90, and 120 min. The Koble-Corrigan, Dubinin-Radushkevich, and the Freundlich isotherms fitted the experimental data very well with R2 values of 0.97 to 1.0, 0.95 to 1.0, and 0.96 to 1.0, respectively. The linear type II Langmuir isotherm performed much better (0.96 ≤ R2 ≤ 1.0) than the nonlinear isotherm. The maximum sorption capacity was obtained as 120.6 mg/g using CPKC at pH 9.0 and 35 °C. The Langmuir separation coefficient values (0.022 ≤ RL ≤ 0.926) show that the sorption of nickel to PKC is favorable. The most favorable sorption condition was found for CPKC at pH 9 and temperature of 40 °C. The values of sorption energy (8.21 ≤ E ≤ 14.27) and the isosteric heat of sorption (-133.09 ≤ ∆Hx ≤ -17.92) indicate that the mode of sorption is mostly ion exchange. Thermodynamic parameters also show that the process is exothermic and entropy-driven. The pseudo-second-order kinetic model shows the best correlation compared to the other kinetic models. The coefficient of correlation for the pseudo-second-order model was mostly within the range of 0.999-1.000 for 90% of all kinetic studies carried out.
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Pathak U, Jhunjhunwala A, Roy A, Das P, Kumar T, Mandal T. Efficacy of spent tea waste as chemically impregnated adsorbent involving ortho-phosphoric and sulphuric acid for abatement of aqueous phenol-isotherm, kinetics and artificial neural network modelling. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:20629-20647. [PMID: 31385251 DOI: 10.1007/s11356-019-06014-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
The current study emphasises on sorptive expulsion of phenol from aqueous solution using ortho-phosphoric acid (STAC-O) and sulphuric acid (STAC-H)-activated biochar derived from spent tea waste. STAC-O and STAC-H were instrumentally anatomised using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), BET surface area and thermal gravimetric analyser. Equilibrium and kinetic data were implemented for the investigative parametric batch study to prospect the influence of adsorbent dosage, contact time, initial concentration and pH for eradication of phenol from aqueous solution. The maximum phenolic removals by STAC-O and STAC-H are 93.59% and 91.024% respectively at the parametric conditions of adsorbent dosage 3 g/l time 2 h, initial phenol concentration 100 mg/l and pH 8. Non-linear regression of adsorption isotherms and kinetics was accomplished using the equilibrium data. Both the specimens were compared, and it delineated that Temkin isotherm model is contented. The maximum adsorption intakes for STAC-H and STAC-O were 185.002 mg/g and 154.39 mg/g respectively. Pseudo-second-order kinetic model was best fitted for portraying the chemisorption phenomena. Boyd kinetic and intra-particle diffusion model were investigated to elucidate the diffusion mechanism involved in the process. Desorption study was employed for determining the regeneration proficiency of the adsorbents using water, ethanol and NaOH with maximum 93% and 51.16% extrusion for STAC-O and STAC-H respectively. The process parameters involved in this study were further analysed using artificial neural network perusal to determine the input-output relationships and data pattern. The overall adsorption study along with cost estimation exhibited that bidirectional activation of spent tea biochar was prospective in abatement of phenol from aqueous media.
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Affiliation(s)
- Uttarini Pathak
- Centre for Technological Excellence in Water Purification, Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, India
| | - Aastha Jhunjhunwala
- Centre for Technological Excellence in Water Purification, Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, India
| | - Ananya Roy
- Centre for Technological Excellence in Water Purification, Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, India
| | - Papita Das
- Department of Chemical Engineering, Jadavpur University, Kolkata, India
| | - Tarkeshwar Kumar
- Department of Petroleum Engineering, ISM Dhanbad, Dhanbad, Jharkhand, India
| | - Tamal Mandal
- Centre for Technological Excellence in Water Purification, Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, India.
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Ibrehem AS. Experimental and Theoretical Study to Optimize Rate Constants of Adsorption and Desorption of the Wastewater Treatment Using Waste of Tea Plant. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2019. [DOI: 10.1007/s13369-019-03896-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Jasmin Shah, Jan MR, Anjum. Selective Solid Phase Extraction of Copper from Different Samples using Copper Ion-Imprinted Polymer. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s1061934818120055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Zhou J, Luo A, Zhao Y. Preparation and characterisation of activated carbon from waste tea by physical activation using steam. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2018; 68:1269-1277. [PMID: 29667515 DOI: 10.1080/10962247.2018.1460282] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/28/2018] [Accepted: 03/25/2018] [Indexed: 06/08/2023]
Abstract
In this study, the feasibility of preparing activated carbon from waste tea by physical activation using steam was investigated. The effects of activation temperature on yield and pore properties of the prepared activated carbon were studied. The yield decreased with increased activation temperature owing to the decomposition of cellulose and hemicellulose. The specific surface area and pore volume of the activated carbon were estimated using the Brunauer-Emmett-Teller method, Langmuir equation, and t-plot method. The specific surface area and micropore volume increased with increases in activation temperature, as additional volatile materials were released. The specific surface area significantly decreased at first but slightly increased with increasing activation time. The maximum specific surface area reached 995 m2/g at an activation temperature of 800 °C with a water flow rate of 0.075 g/min and a constant hold time of 0.5 hr. According to the nitrogen adsorption isotherms, micropores mainly developed when the activation temperature was below 800 °C, and both micropores and mesopores developed when it was above 800 °C. The results showed that activation temperature significantly affected micropore and mesopore volumes, as well as the specific surface area of the activated carbon. Overall, waste tea was found to be an attractive raw material for producing low-cost activated carbon. Implications: Every year, a large amount of waste tea is generated after extraction. The high carbon content of waste tea showed that it can be used as raw material to produce activated carbon. This study investigated the feasibility of preparing activated carbon from waste tea by physical activation using steam. Temperature and time were found to have clear effects on pore properties. Our proposed method and raw material are more environmentally friendly and involve low cost. Furthermore, this offers a potential solution to the problems of waste tea disposal and low-cost activated carbon production.
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Affiliation(s)
- Jiazhen Zhou
- a The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering , Tongji University , Shanghai , People's Republic of China
| | - Anran Luo
- b Shanghai Nanyi Environmental Protection Technology Co., Ltd , Shanghai , People's Republic of China
| | - Youcai Zhao
- a The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering , Tongji University , Shanghai , People's Republic of China
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10
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Sayğılı H, Akkaya Sayğılı G, Güzel F. Surface modification of black tea waste using bleaching technique for enhanced biosorption of Methylene blue in aqueous environment. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1495735] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Hasan Sayğılı
- Department of Petroleum and Natural Gas Engineering, Faculty of Engineering and Architecture, Batman University, Batman, Turkey
| | | | - Fuat Güzel
- Department of Chemistry, Faculty of Education, Dicle University, Diyarbakır, Turkey
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11
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Yang Z, Liu L, Lv Y, Cheng Z, Xu X, Xian J, Zhu X, Yang Y. Metal availability, soil nutrient, and enzyme activity in response to application of organic amendments in Cd-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:2425-2435. [PMID: 29124646 DOI: 10.1007/s11356-017-0671-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
The study investigated the effects of organic amendments: green tea amendment (GTA) and oil cake amendment (OCA) on Cd bioavailability, soil nutrients, and soil enzyme activity in Cd-contaminated soil. The amendments were added to the soil at the doses of 1, 3, and 5% and were incubated for 45 days. Then, pakchoi cabbage was planted to test the remediation effect of the above two organic amendments. The diethylenetriaminepentaacetic acid (DTPA)-extractable Cd in GTA and OCA treatments was reduced by 14.69-27.51 and 13.75-68.77%, respectively, compared to no amendment-applied treatment. The application of GTA and OCA notably decreased the proportion of exchangeable fraction of Cd, but increased the percentage of oxide and organic-bound fraction of Cd, thereby suppressing the uptake by pakchoi cabbage. Cd concentration of aboveground parts decreased by 8.21-18.05 and 7.77-35.89% in GTA and OCA treatments, respectively. Relative to the no amendment-applied treatment, both GTA and OCA had enhanced soil nutrients and enzyme activities largely. Redundancy analysis showed that organic matter, total P, available N, and DTPA-extractable Cd significantly affected the enzyme activities. Furthermore, the application of OCA at the dose of 5% was more effective in reducing bioavailable Cd, enhancing soil available nutrients and urease and catalase activities in contaminated soil. These results indicated that oil cake should be used to immobilize metal and improve fertility and quality of Cd-contaminated soil.
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Affiliation(s)
- Zhanbiao Yang
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Lixia Liu
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China
- Department of Environment, College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Yanfeng Lv
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhang Cheng
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaoxun Xu
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China
| | - Junren Xian
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xuemei Zhu
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanxiang Yang
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, China
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12
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Novel polymorphous aluminosilicate nano minerals: Preparation, characterization and dyes wastewater treatment. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0155-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Artificial neural network (ANN) approach for modeling Zn(II) adsorption in batch process. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0157-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Yıldız S, Çekim M, Dere T. Biosorption of Cu 2+ and Ni 2+ Ions from Synthetic Waters. Appl Biochem Biotechnol 2017; 183:332-347. [PMID: 28283934 DOI: 10.1007/s12010-017-2448-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 02/21/2017] [Indexed: 11/27/2022]
Abstract
In this study, biosorption of Cu2+ and Ni2+ ions to tobacco stalks was investigated under different operational conditions. The effects of the initial pH, ion concentrations, temperature, and duration of contact and adsorbent dosage were determined in the batch experiments. Chemical oxygen demand (COD) analyses were also performed to identify the possible negative effects of the sorbent throughout biosorption process. The sorption capacities of this sorbent were predicted by use of the equilibrium and kinetic models. Within the scope of kinetic study, it was observed that biosorption fitted to second-order pseudo kinetic rate expression. The highest R 2 value in isotherm studies was obtained from Freundlich isotherm (R 2 = 0.9940-0.9929) for the inlet concentration. FTIR, SEM, and EDX analyses were performed to investigate the surface characteristics and chemical structure of the biosorbent. Under optimum conditions, qe value for Cu2+ was determined as 7.18 mg/g and removal efficiency was 86.24%; qe value for Ni2+ was determined as 6.45 mg/g and removal efficient was 77.4%. Sorbent recovery process was also performed within the scope of this study with 0.1 M H2SO4, 0.1 M HCl, and distilled water. A significant decrease was observed in efficiency when the recovered sorbent was reused.
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Affiliation(s)
- Sayiter Yıldız
- Engineering Faculty, Department of Environmental Engineering, Cumhuriyet University, 58140, Sivas, Turkey.
| | - Mehmet Çekim
- Istanbul Metropolitan Municipality İSKİ Silivri District Conduct, İstanbul, Turkey
| | - Turgay Dere
- Engineering Faculty, Department of Environmental Engineering, Adıyaman University, Adıyaman, Turkey
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Saranya N, Nakkeeran E, Shrihari S, Selvaraju N. Equilibrium and Kinetic Studies of Hexavalent Chromium Removal Using A Novel Biosorbent: Ruellia Patula Jacq. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-017-2416-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Ahmed IM, Gamal R, Helal AA, Abo-El-Enein SA, Helal AA. Kinetic sorption study of Cerium (IV) on magnetite nanoparticles. PARTICULATE SCIENCE AND TECHNOLOGY 2016. [DOI: 10.1080/02726351.2016.1192572] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- I. M. Ahmed
- Hot Laboratories and Waste Management Center, Atomic Energy Authority, Cairo, Egypt
| | - R. Gamal
- Hot Laboratories and Waste Management Center, Atomic Energy Authority, Cairo, Egypt
| | - Aly A. Helal
- Hot Laboratories and Waste Management Center, Atomic Energy Authority, Cairo, Egypt
| | | | - A. A. Helal
- Hot Laboratories and Waste Management Center, Atomic Energy Authority, Cairo, Egypt
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17
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Shah J, Jan MR, Zeeshan M, Iqbal M. Solid phase extraction and removal of 2,4-dichlorophenol from aqueous samples using magnetic graphene nanocomposite. SEP SCI TECHNOL 2016. [DOI: 10.1080/01496395.2016.1165700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Valorization of Wasted Black Tea as a Low-Cost Adsorbent for Nickel and Zinc Removal from Aqueous Solution. J CHEM-NY 2016. [DOI: 10.1155/2016/5680983] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Characteristics and efficiency of wasted black tea (WBT) were investigated as a low-cost sorbent in removal of Ni2+and Zn2+ions from aqueous solution. Initial findings showed WBT potential to be applied as an effective sorbent due to high concentrations of carbon and calcium and high porosity and availability of functional groups. Sorption dynamics were studied with varying pH, contact time, and adsorbent dose. Maximum percentages of metal ions removal were recorded at pH 5, contact time 250 min, and 20 g/L of adsorbent concentration. Binary metal sorption studies showed that Ni2+and Zn2+do not compete with each other for available sorption sites, so the adsorption trend in binary system appears similar to monocomponent metal adsorption. Evaluation of the isotherms confirmed that WBT has high value of adsorption capacity. Sorption data fitted well with both Freundlich and Langmuir models. In the optimum conditions, maximum capacity of WBT could reach up to 90.91 mg-Ni/g adsorbent and 166.67 mg-Zn/g adsorbent. This experiment demonstrated the ability of tea waste as an effective, sustainable, and low-cost adsorbent for removal of the heavy metal ions.
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Xie A, Dai J, He J, Sun J, Chang Z, Li C, Yan Y. Converting obsolete copy paper to porous carbon materials with preeminent adsorption performance for tetracycline antibiotic. RSC Adv 2016. [DOI: 10.1039/c5ra24707a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This work first reported the conversion of CP to PCMs. The ultrahigh adsorption amount, fast kinetics and great regeneration made the PCMs-850-4 as promising adsorbents for the low-cost, highly efficient and fast removal of organic pollutants.
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Affiliation(s)
- Atian Xie
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Jiangdong Dai
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Jinsong He
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Jun Sun
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Zhongshuai Chang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Chunxiang Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Ministry of Education)
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20
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Nemoto Y, Iitsuka Y, Watanabe K, Amano Y, Machida M. Adsorptive Removal of Ni(II) from Water using Oxidized Activated Carbon Derived from Sulfur Containing Petroleum Coke. KAGAKU KOGAKU RONBUN 2016. [DOI: 10.1252/kakoronbunshu.42.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Yoshimasa Amano
- Graduate School of Engineering, Chiba University
- Safety and Health Organization, Chiba University
| | - Motoi Machida
- Graduate School of Engineering, Chiba University
- Safety and Health Organization, Chiba University
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