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Alardhi SM, Salih HG, Ali NS, Khalbas AH, Salih IK, Saady NMC, Zendehboudi S, Albayati TM, Harharah HN. Olive stone as an eco-friendly bio-adsorbent for elimination of methylene blue dye from industrial wastewater. Sci Rep 2023; 13:21063. [PMID: 38030694 PMCID: PMC10687264 DOI: 10.1038/s41598-023-47319-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 11/12/2023] [Indexed: 12/01/2023] Open
Abstract
Adsorbents synthesized by activation and nanoparticle surface modifications are expensive and might pose health and ecological risks. Therefore, the interest in raw waste biomass materials as adsorbents is growing. In batch studies, an inexpensive and effective adsorbent is developed from raw olive stone (OS) to remove methylene blue (MB) from an aqueous solution. The OS adsorbent is characterized using scanning electron microscopy (SEM), Fourier Transform Infra-Red (FTIR), and Brunauer-Emmett-Teller (BET) surface area. Four isotherms are used to fit equilibrium adsorption data, and four kinetic models are used to simulate kinetic adsorption behavior. The obtained BET surface area is 0.9 m2 g-1, and the SEM analysis reveals significant pores in the OS sample that might facilitate the uptake of heavy compounds. The Langmuir and Temkin isotherm models best represent the adsorbtion of MB on the OS, with a maximum monolayer adsorption capacity of 44.5 mg g-1. The best dye color removal efficiency by the OS is 93.65% from an aqueous solution of 20 ppm at the OS doses of 0.2 g for 90 min contact time. The OS adsorbent serves in five successive adsorption cycles after a simple filtration-washing-drying process, maintaining MB removal efficiency of 91, 85, 80, and 78% in cycles 2, 3, 4, and 5, respectively. The pseudo second-order model is the best model to represent the adsorption process dynamics. Indeed, the pseudo second-order and the Elovich models are the most appropriate kinetic models, according to the correlation coefficient (R2) values (1.0 and 0.935, respectively) derived from the four kinetic models. The parameters of the surface adsorption are also predicted based on the mass transfer models of intra-particle diffusion and Bangham and Burt. According to the thermodynamic analysis, dye adsorption by the OS is endothermic and spontaneous. As a result, the OS material offers an efficient adsorbent for MB removal from wastewater that is less expensive, more ecologically friendly, and economically viable.
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Affiliation(s)
- Saja M Alardhi
- Nanotechnology and Advanced Materials Research Center, University of Technology-Iraq, Baghdad, Iraq
| | - Hussein G Salih
- Department of Chemical Engineering, University of Technology-Iraq, 52 Alsinaa St., PO Box 35010, Baghdad, Iraq
| | - Nisreen S Ali
- Materials Engineering Department, College of Engineering, Mustansiriyah University, Baghdad, Iraq
| | - Ali H Khalbas
- Department of Chemical Engineering, University of Technology-Iraq, 52 Alsinaa St., PO Box 35010, Baghdad, Iraq
| | - Issam K Salih
- Department of Chemical Engineering and Petroleum Industries, Al-Mustaqbal University, Babylon, 51001, Iraq
| | - Noori M Cata Saady
- Department of Civil Engineering, Memorial University, St. John's, NL, A1B 3X5, Canada
| | - Sohrab Zendehboudi
- Department of Process Engineering, Memorial University, St. John's, NL, A1B 3X5, Canada
| | - Talib M Albayati
- Department of Chemical Engineering, University of Technology-Iraq, 52 Alsinaa St., PO Box 35010, Baghdad, Iraq.
| | - Hamed N Harharah
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha, 61411, Kingdom of Saudi Arabia
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2
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Dong Z, Rene ER, Zhang P, Hu Q, Ma W. Design and preparation of carbon material catalyst modified with metal framework and sulfonate for biochar generation from low-temperature directional pyrolysis of kitchen waste: Mechanism and performance. BIORESOURCE TECHNOLOGY 2023; 371:128616. [PMID: 36640819 DOI: 10.1016/j.biortech.2023.128616] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
In order to reduce the pyrolysis temperature during the process of directional conversion from kitchen waste (KW) into aromatic biochar, a kind of catalyst was prepared with carbon material coated with tri-metallic oxide (Fe2O3, MgO and Al2O3) combining with sulfonic acid groups (CMO@SA) according to KW compositions. The aromaticity of KW pyrolysis biochar (KWB) increased when the temperature ranged from 170 to 210 °C. The catalytic pyrolysis temperature of KW reduced from 500 to 190 °C for biochar generation with similar aromaticity due to amendment of CMO@SA. The maximum adsorption capacity of catalytic pyrolysis KWB was 160.23 mg/g for dyeing wastewater, which was equivalent to biochar generated at 500 °C. The decrease of pyrolysis temperature was attributed to the reduction of bonds fracture activation-energy among CH, CC and CO under the catalytic function. The catalytic activity and recovery of CMO@SA kept at 92 % and 90 % after five recycle.
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Affiliation(s)
- Zishui Dong
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, P.O. Box 3015, 2601DA, Delft, The Netherlands
| | - Panyue Zhang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Qian Hu
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Weifang Ma
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
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3
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Oliveira EN, Meneses AT, de Melo SF, Dias FMR, Perazzini MTB, Perazzini H, Meili L, Soletti JI, Carvalho SHV, Bispo MD. Highly effective adsorption of caffeine by a novel activated carbon prepared from coconut leaf. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:50661-50674. [PMID: 35235121 DOI: 10.1007/s11356-022-18788-w] [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: 09/17/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
The disposal of coconut wastes is costly and damaging to the environment, but its uses are advantageous activated carbons production. Coconut leaves waste were used for activated carbon production by pyrolysis at 500° C and activation with potassium carbonate. The activated carbon was used for caffeine removal from aqueous solution. The coconut leaves activated carbon showed a predominantly amorphous structure from X-ray diffraction analysis and a pH at the zero charge point of 7.9. From the N2 adsorption/desorption method, the adsorbent showed a predominance of mesopores, with average pore size of 45.48 ηm and a surface area of 678.03 m2/g. From kinetic studies the data followed the pseudo-second order, where the intraparticle diffusion can be neglected. The adsorption isotherms were satisfactorily adjusted for the Redlich-Peterson model and a type curve L was identified. The thermodynamic parameters showed that adsorption occurred spontaneously, was exothermic and governed by physical adsorption. The artificial neural networks developed were capable of predicting both kinetics and equilibrium adsorption data under different operating conditions and was comparable to the traditional models available in literature in the training experiments, encouraging its use for data generalization when an efficient dataset is used. In conclusion, coconut leaves waste showed to be a promising feedstock to produce activated carbon aiming caffeine removal from water and wastewater.
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Affiliation(s)
- Elvio N Oliveira
- Laboratory of Separation Systems and Process Optimization (LASSOP), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | - Alex T Meneses
- Laboratory of Separation Systems and Process Optimization (LASSOP), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | - Samara F de Melo
- Laboratory of Separation Systems and Process Optimization (LASSOP), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | - Franciele M R Dias
- Laboratory of Separation Systems and Process Optimization (LASSOP), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | - Maisa T B Perazzini
- Institute of Natural Resources, Federal University of Itajubá-UNIFEI, Itajubá, MG, Brazil
| | - Hugo Perazzini
- Institute of Natural Resources, Federal University of Itajubá-UNIFEI, Itajubá, MG, Brazil
| | - Lucas Meili
- Laboratory of Processes (LAPRO), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | - João I Soletti
- Laboratory of Separation Systems and Process Optimization (LASSOP), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | - Sandra H V Carvalho
- Laboratory of Separation Systems and Process Optimization (LASSOP), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | - Mozart D Bispo
- Laboratory of Separation Systems and Process Optimization (LASSOP), Center of Technology, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil.
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Hamad HN, Idrus S. Recent Developments in the Application of Bio-Waste-Derived Adsorbents for the Removal of Methylene Blue from Wastewater: A Review. Polymers (Basel) 2022; 14:783. [PMID: 35215695 PMCID: PMC8876036 DOI: 10.3390/polym14040783] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/05/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023] Open
Abstract
Over the last few years, various industries have released wastewater containing high concentrations of dyes straight into the ecological system, which has become a major environmental problem (i.e., soil, groundwater, surface water pollution, etc.). The rapid growth of textile industries has created an alarming situation in which further deterioration to the environment has been caused due to substances being left in treated wastewater, including dyes. The application of activated carbon has recently been demonstrated to be a highly efficient technology in terms of removing methylene blue (MB) from wastewater. Agricultural waste, as well as animal-based and wood products, are excellent sources of bio-waste for MB remediation since they are extremely efficient, have high sorption capacities, and are renewable sources. Despite the fact that commercial activated carbon is a favored adsorbent for dye elimination, its extensive application is restricted because of its comparatively high cost, which has prompted researchers to investigate alternative sources of adsorbents that are non-conventional and more economical. The goal of this review article was to critically evaluate the accessible information on the characteristics of bio-waste-derived adsorbents for MB's removal, as well as related parameters influencing the performance of this process. The review also highlighted the processing methods developed in previous studies. Regeneration processes, economic challenges, and the valorization of post-sorption materials were also discussed. This review is beneficial in terms of understanding recent advances in the status of biowaste-derived adsorbents, highlighting the accelerating need for the development of low-cost adsorbents and functioning as a precursor for large-scale system optimization.
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Affiliation(s)
| | - Syazwani Idrus
- Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia;
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Rangabhashiyam S, Lins PVDS, Oliveira LMTDM, Sepulveda P, Ighalo JO, Rajapaksha AU, Meili L. Sewage sludge-derived biochar for the adsorptive removal of wastewater pollutants: A critical review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118581. [PMID: 34861332 DOI: 10.1016/j.envpol.2021.118581] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 10/18/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
The production of biochar from sewage sludge pyrolysis is a promising approach to transform the waste resultant from wastewater treatment plants (WWTPs) to a potential adsorbent. The current review provides an up-to-date review regarding important aspects of sewage sludge pyrolysis, highlighting the process that results major solid fraction (biochar), as high-value product. Further, the physio-chemical characteristics of sewage-sludge derived biochar such as the elemental composition, specific surface area, pore size and volume, the functional groups, surface morphology and heavy metal content are discussed. Recent progress on adsorption of metals, emerging pollutants, dyes, nutrients and oil are discussed and the results are examined. The sewage sludge-derived biochar is a promising material that can make significant contributions on pollutants removal from water by adsorption and additional benefit of the management of huge volume of sewage. Considering all these aspects, this field of research still needs more attention from the researchers in the direction of the technological features and sustainability aspects.
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Affiliation(s)
- S Rangabhashiyam
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, 613401, Tamilnadu, India
| | | | | | - Pamela Sepulveda
- Centro para el Desarrollo de Nanociencia y Nanotecnología CEDENNA, Santiago, Chile; Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile; Departamento de Física, Facultad de Ciencias, Universidad de Santiago de Chile, Santiago, Chile
| | - Joshua O Ighalo
- Department of Chemical Engineering, University of Ilorin, Ilorin, Nigeria; Department of Chemical Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - Anushka Upamali Rajapaksha
- Instrument Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; Ecosphere Resilience Research Center, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka
| | - Lucas Meili
- Laboratory of Process, Technology Center, Federal University of Alagoas, Maceió-AL, Brazil.
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6
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Kinetics, Thermodynamics, and Isotherms of Methylene Blue Adsorption Study onto Cassava Stem Activated Carbon. WATER 2021. [DOI: 10.3390/w13202936] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Water treatment using activated carbon is widely accepted, despite its high production cost. Therefore, this study was aimed to investigate the potential of cassava stem in activated carbon form for methylene blue (MB) dye uptake from water. Raw cassava stem (RCS) was also utilized to evaluate the difference between cassava stem in its raw form and after being converted to the activated carbon (ACS). The MB adsorption from water using the RCS and ACS was done in this study. The batch adsorption study showed fast MB uptake by ACS at 60 min contact time, while higher adsorbent dosage and higher pH contributed to higher adsorption percentage. The thermodynamic study showed positive values of ∆H° of ACS, indicating that the adsorption process of MB was endothermic. Meanwhile, the negative value of ∆G° showed that the adsorption processes of MB were spontaneous. The thermodynamic study showed higher fitting to Langmuir isotherm, with data from the kinetic study showing better pseudo-second-order equation fitting, which suggests the chemisorption process had happened. The highest adsorption recorded by ACS was 384.61 mg/g, indicating the possibility of cassava stem as the lower cost raw material for activated carbon production with excellent adsorption characteristics.
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7
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Yang X, Zhu W, Song Y, Zhuang H, Tang H. Removal of cationic dye BR46 by biochar prepared from Chrysanthemum morifolium Ramat straw: A study on adsorption equilibrium, kinetics and isotherm. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116617] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Manzar MS, Khan G, dos Santos Lins PV, Zubair M, Khan SU, Selvasembian R, Meili L, Blaisi NI, Nawaz M, Abdul Aziz H, Kayed T. RSM-CCD optimization approach for the adsorptive removal of Eriochrome Black T from aqueous system using steel slag-based adsorbent: Characterization, Isotherm, Kinetic modeling and thermodynamic analysis. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116714] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Biological Potential of Products Obtained from Palm Trees of the Genus Syagrus. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:5580126. [PMID: 34457025 PMCID: PMC8397564 DOI: 10.1155/2021/5580126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 08/10/2021] [Indexed: 11/17/2022]
Abstract
Medicinal plants have been used for centuries by communities worldwide, as they have diverse biological properties and are effective against numerous diseases. The genus Syagrus stands out for its versatility and for so many activities presented by these palm trees, mainly due to its rich chemical and fatty acid compositions. The genus has antibacterial potential, has antibiofilm, antiparasitic, antioxidant, prebiotic, antiulcerogenic, anticholinesterase, and hypoglycemic activities, and can produce biodiesel, amid others. Among all species, Syagrus coronata and Syagrus romanzoffiana stand out, presenting the greatest number of activities and applications. The secondary metabolites obtained from these palm trees present high activity even in low concentrations and can be used against infections and chronic diseases. Furthermore, these plants have been used in some communities for years and have presented healing properties, especially in inflammatory processes. Therefore, the Syagrus genus proves to be promising, which shows a lot of therapeutic potential.
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da Silva Santos DH, Paulino JCPL, Dos Santos Alves GF, de Magalhães Oliveira LMT, de Carvalho Nagliate P, da Silva Duarte JL, Meili L, Tonholo J, Zanta CLDPES. Effluent treatment using activated carbon adsorbents: a bibliometric analysis of recent literature. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10.1007/s11356-021-14267-w. [PMID: 33950424 DOI: 10.1007/s11356-021-14267-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Agricultural practices and industrial and human discharges play an important role in the generation of highly contaminated effluents, which becomes a threat to the environment. The persistence of many of these compounds to conventional treatments in recent years has meant that numerous efforts have been devoted to the proposal of new selective materials that allow the removal of these contaminants by adsorption. In addition, bibliometric studies have grown as powerful tools to indicate trends in innovation. In this way, the present study consisted of evaluating the potential interest to use activated carbon as adsorbent through a prospection study in scientific and technological databases. The number of records obtained for the use of activated carbon in effluent remediation processes is equivalent to 4898, which corresponds to approximately 2.5% of the total documents (articles/patents) found for the use of carbon with no defined purpose. A total of 2275 works that used the adsorptive property of activated carbon were recovered. According to the data recovered, Brazil is the leader in scientific publications among Latin American countries and the 12th worldwide, according to the SciELO and Scopus databases, respectively. In general, a significant number of patents have been recovered for this theme, in the Derwent database, 1167 documents were recovered. The results obtained in this work evidenced the growing interest in developing technologies in this area.
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Affiliation(s)
- Danilo Henrique da Silva Santos
- Laboratório de Eletroquímica Aplicada, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, UFAL, Maceió, Brazil
| | | | | | | | | | - José Leandro da Silva Duarte
- Laboratório de Eletroquímica Aplicada, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, UFAL, Maceió, Brazil
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, UFAL, Maceió, Brazil
| | - Lucas Meili
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, UFAL, Maceió, Brazil.
- Laboratory of Processes - LAPRO, Center of Technology, Federal University of Alagoas, Campus A. C. Simões, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, CEP 57072-970, Brazil.
| | - Josealdo Tonholo
- Laboratório de Eletroquímica Aplicada, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, UFAL, Maceió, Brazil
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11
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12
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Melo LLA, Ide AH, Duarte JLS, Zanta CLPS, Oliveira LMTM, Pimentel WRO, Meili L. Caffeine removal using Elaeis guineensis activated carbon: adsorption and RSM studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27048-27060. [PMID: 32388754 DOI: 10.1007/s11356-020-09053-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
The palm (Elaeis guineensis), known as dendê, is an important oleaginous Brazilian plant with a high performance of oil production. In this work, a 23 full experimental design was performed and the response surface method (RSM) was used to indicate the optimum parameter of caffeine adsorption on Elaeis guineensis endocarp activated carbon, since the endocarp is the main by-product from dendê oil production. It was set the adsorbent point of zero charge (pHpzc), and the material was characterized by Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The RSM results indicate removal efficiency (%) at the optimal conditions, 0.20 g of adsorbent, and caffeine initial concentration of 20 mg/L, and acidic medium was about 95%. Based on ANOVA and F test (Fcalculated > Fstandard), the mathematical/statistical model obtained fits well to the experimental data. The overall kinetic studies showed time was achieved after 5 h and caffeine adsorption followed the pseudo-second-order model suggesting chemisorption is a predominant mechanism. Redlich-Peterson and Sips models best represented the experimental data (0.967 < R2 < 0.993). Thermodynamic revealed that caffeine adsorption was spontaneous at all temperatures studied, exothermic, and probably with changes in the adsorbate-adsorbent complex during the process. The tests conducted in different water matrixes corroborate the suitability of this adsorbent to be used in caffeine removal even in a complex solution.
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Affiliation(s)
- Larissa L A Melo
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Alessandra H Ide
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - José Leandro S Duarte
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
- Laboratorio de Eletroquímica Aplicada, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Carmem Lucia P S Zanta
- Laboratorio de Eletroquímica Aplicada, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Leonardo M T M Oliveira
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Wagner R O Pimentel
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Lucas Meili
- Laboratório de Processos, Centro de Tecnologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil.
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13
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Santos LC, da Silva AF, Dos Santos Lins PV, da Silva Duarte JL, Ide AH, Meili L. Mg-Fe layered double hydroxide with chloride intercalated: synthesis, characterization and application for efficient nitrate removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:5890-5900. [PMID: 31863374 DOI: 10.1007/s11356-019-07364-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Mg-Fe layered double hydroxide intercalated with chloride (Mg-Fe-Cl LDH) was synthetized, characterized, and evaluated as adsorbent to remove nitrate from aqueous solution. The pH, initial nitrate concentration, adsorbent dosage, and particle size were investigated. Kinetic data was best represented by pseudo-second order model indicating that the rate limiting step was chemisorption. Intraparticle diffusion model indicates that adsorption kinetic is limited by external and intraparticle diffusion. Sips model was selected, based on R2, ARE, and AIC, to adequately represent the adsorption isotherms, which permits to affirm that the adsorption occurs in heterogeneous surface, obtaining the maximum adsorption capacity of 18.17 mg.g-1 at 30 oC. Thermodynamics parameters indicate that the adsorption was spontaneous, exothermic, and with structural modification. These findings come up with Mg-Fe-Cl LDH as a suitable adsorbent for nitrate and could contribute to its removal from the water and wastewater.
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Affiliation(s)
- Luciane Cavalcante Santos
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Anamália Ferreira da Silva
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Pollyanna Vanessa Dos Santos Lins
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - José Leandro da Silva Duarte
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
- Laboratory of Applied Electrochemistry, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, AL, Brazil
| | - Alessandra Honjo Ide
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | - Lucas Meili
- Laboratory of Processes, Center of Technology, Federal University of Alagoas, Av. Lourival Melo Mota, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil.
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14
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Dos Santos KJL, Dos Santos GEDS, de Sá ÍMGL, Ide AH, Duarte JLDS, de Carvalho SHV, Soletti JI, Meili L. Wodyetia bifurcata biochar for methylene blue removal from aqueous matrix. BIORESOURCE TECHNOLOGY 2019; 293:122093. [PMID: 31518818 DOI: 10.1016/j.biortech.2019.122093] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
The endocarp of Wodyetia bifurcata was used to produce biochar by vacuum pyrolysis as an alternative adsorbent for methylene blue (MB) removal. The influence of different pyrolysis temperatures, particle diameters and activation agents in the adsorption process was studied. Kinetics and adsorption equilibrium were also evaluated. Biochar obtained at higher pyrolysis temperatures and activated with H3PO4 showed the best adsorptive capacities, achieving 83% of MB removal. The experimental data fitted better with pseudo-second order model. Isotherms performed at 25, 40, 50 and 60 °C showed that the adsorption of MB onto the activated biochar had no concentration dependence in the range studied. Experimental isotherms fitted well with the Freundlich and Sips models and the thermodynamic parameters suggested a physical adsorption mechanism in a heterogeneous surface, spontaneous at all temperatures evaluated. In brief, the activated carbon obtained from Wodyetia bifurcata can be a promising material for MB removal from aqueous solutions.
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Affiliation(s)
- Kleber Jean Leite Dos Santos
- Laboratorio de Processos (LaPro), Centro de Tecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil; Laboratorio de Sistemas de Separação e Otimização de Processos (LASSOP), Centro de Tecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | | | | | - Alessandra Honjo Ide
- Laboratorio de Processos (LaPro), Centro de Tecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - José Leandro da Silva Duarte
- Laboratorio de Processos (LaPro), Centro de Tecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil; Laboratório de Eletroquímica Aplicada (LEAP), Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Sandra Helena Vieira de Carvalho
- Laboratorio de Sistemas de Separação e Otimização de Processos (LASSOP), Centro de Tecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - João Inácio Soletti
- Laboratorio de Sistemas de Separação e Otimização de Processos (LASSOP), Centro de Tecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Lucas Meili
- Laboratorio de Processos (LaPro), Centro de Tecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil.
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