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Oruganti RK, Bandyopadhyay S, Panda TK, Shee D, Bhattacharyya D. Synthesis of algal-bacterial sludge activated carbon/Fe 3O 4 nanocomposite and its potential in antibiotic ciprofloxacin removal by simultaneous adsorption and heterogeneous Fenton catalytic degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34830-5. [PMID: 39240432 DOI: 10.1007/s11356-024-34830-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 08/23/2024] [Indexed: 09/07/2024]
Abstract
The extensive use of pharmaceuticals has increased their presence in the environment, posing significant ecological and public health concerns. The current study reports the magnetic nanocomposite (M-ABAC) synthesis using the algal-bacterial sludge as the precursor for activated carbon and evaluates its potential in fluoroquinolone antibiotics removal. The activated carbon from algal-bacterial sludge was composited with Fe3O4 nanoparticles using the co-precipitation method. The M-ABAC was characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), Brunauer-Emmett-Teller (BET) analysis, and vibrating sample magnetometry (VSM). M-ABAC was employed for antibiotic ciprofloxacin (CIP) removal by combined adsorption and heterogenous Fenton degradation. The adsorption studies reveal that the Langmuir isotherm best fits the experimental data, with a maximum adsorption capacity of 81.6 mg/g. Pseudo-second-order kinetic model well describes adsorption kinetics. Fenton catalytic degradation was performed using H2O2 as the activating agent. The optimal H2O2 dosage was observed to be 10 mM. A CIP adsorptive removal efficiency of 75% was observed at 2 g/L dosage of M-ABAC in a 200 ppm CIP solution. Simultaneous adsorption and Fenton catalytic degradation further enhanced the removal efficiency to 92%. Radical scavengers experiment revealed that the hydroxyl radical (•OH) was the dominant reactive oxidation species. The degradation products of the CIP were identified using liquid chromatography quadrupole time-of-flight mass spectroscopy (LC-QTOF-MS). The possible CIP degradation mechanisms include decarboxylation, piperazine moiety degradation, defluorination, and hydroxylation.
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Affiliation(s)
- Raj Kumar Oruganti
- Department of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India, 502284
| | - Saswata Bandyopadhyay
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India, 502284
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India, 502284
| | - Debaprasad Shee
- Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India, 502284
| | - Debraj Bhattacharyya
- Department of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India, 502284.
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Morsi R, Ghoudi K, Meetani MA. Determination and health risk assessment of carbamate pesticide residues in date palm fruits (Phoenix dactylifera) using QuEChERS method and UHPLC-MS/MS. Sci Rep 2024; 14:13064. [PMID: 38844596 PMCID: PMC11156656 DOI: 10.1038/s41598-024-63704-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 05/31/2024] [Indexed: 06/09/2024] Open
Abstract
This study aimed to investigate carbamate pesticide residues in different varieties of date palm fruits in the UAE, utilizing UHPLC-MS/MS. For sample preparation and clean-up, the efficiency and performance of different QuEChERS dispersive solid-phase extraction kits were compared. Precision and recovery were assessed at 10 μg kg-1 for the three kits, revealing that Kit 2 demonstrated the best performance. The selected QuEChERS method was validated to detect 14 carbamate residues in 55 date samples. The method exhibited strong linearity with R2 > 0.999 and low LOD (0.01-0.005 μg kg-1) and LOQ (0.003-0.04 μg kg-1). Excellent accuracy (recovery: 88-106%) and precision (RSD: 1-11%) were observed, with negligible matrix effect (- 4.98-13.26%). All samples contained at least one carbamate residue. While most detected residues were below their MRLs, carbosulfan was found in 21 samples, propoxur in 2 samples, and carbofuran in 1 sample above their MRLs. The hazard index (HI) was calculated for carbosulfan, phenmedipham, carbaryl, propoxur, carbofuran, and methomyl to assess potential health risks for date consumers. All HI values were below the safety limit of 1.0, indicating that the consumption of dates does not pose a non-carcinogenic health risk for adults and children.
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Affiliation(s)
- Rana Morsi
- Chemistry department, College of Science, United Arab Emirates University, P. O. Box 15551, Al-Ain, United Arab Emirates
| | - Kilani Ghoudi
- Department of Statistics, College of Business and Economics, United Arab Emirates University, P. O. Box 15551, Al-Ain, United Arab Emirates
| | - Mohammed A Meetani
- Chemistry department, College of Science, United Arab Emirates University, P. O. Box 15551, Al-Ain, United Arab Emirates.
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3
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Lach J, Okoniewska E. Equilibrium, Kinetic, and Diffusion Mechanism of lead(II) and cadmium(II) Adsorption onto Commercial Activated Carbons. Molecules 2024; 29:2418. [PMID: 38893296 PMCID: PMC11174129 DOI: 10.3390/molecules29112418] [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: 05/08/2024] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
The adsorption of Pb(II) and Cd(II) on three commercial microporous activated carbons was analysed. Adsorption kinetics and statistics were investigated, and the results were described with different models. The highest values of the correlation coefficient R2 were obtained for the pseudo-second-order kinetics model for all ions tested and all sorbents used. The adsorption process was found to be determined by both diffusion in the liquid layer and intraparticle diffusion. The adsorption equilibrium is very well described by Langmuir, Temkin, Thoth or Jovanovic isotherm models. Based on the values of n from the Freundlich isotherm and KL from the Langmuir isotherm, the adsorption of cadmium and lead ions was found to be favourable. The highest monolayer capacities were obtained during the adsorption of lead ions (162.19 mg/g) and for cadmium (126.34 mg/g) for activated carbon WG-12. This carbon is characterised by the highest amount of acid functional groups and the largest specific surface area. The adsorption efficiency of the tested ions from natural water is lower than that from a model solution made from deionised water. The lowest efficiencies are obtained when the process occurs from highly mineralised water.
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Affiliation(s)
- Joanna Lach
- Faculty of Infrastructure and Environment, Czestochowa University of Technology, Brzeznicka 60a, 42-200 Czestochowa, Poland;
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Dos Santos BLB, Vieira Y, Abou Taleb MF, Ibrahim MM, Reis MA, do Nascimento BF, Oliveira MLS, Silva LFO, Dotto GL. Remediation through the coordinated use of local rice husk residues for the selective adsorption of iron and nickel in real landfill leachate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 358:120893. [PMID: 38640761 DOI: 10.1016/j.jenvman.2024.120893] [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: 11/06/2023] [Revised: 02/09/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
Herein, we demonstrate the prospects of tackling several environmental problems by transforming a local rice husk residue into an effective adsorbent, which was then applied for the treatment of real landfill leachate (LL). The study focused on establishing (i) the effect of simple washing on morphological aspects, (ii) evaluating target adsorption capacity for total iron (Fe) and nickel (Ni), (iii) determining regeneration and reuse potential of the adsorbent and (iv) complying to the requirements of worldwide legislations for reuse of treated LL wastewater. The adsorbent was prepared by employing a simple yet effective purification process that can be performed in situ. The LL was collected post-membrane treatment, and the characterizations revealed high concentrations of Fe, Ni, and organic matter content. The simple washing affected the crystallinity, resulting in structural alterations of the adsorbents, also increasing the porosity and specific surface. The adsorption process for Ni occurred naturally at pH 6, but adjusting the pH to 3 significantly improved removal efficiency and adsorption capacity for total Fe. The kinetics were accurately described by the pseudo-second-order model, while the Langmuir model provided a better fit for the isotherms. The adsorbent was stable for 5 reuses, and the metals adsorbed were recovered through basic leaching. The removal capacities achieved underscore the remarkable effectiveness of the process, ensuring the treated LL wastewater meets rigorous global environmental legislations for safe use in irrigation. Thus, by employing the compelling methods herein optimized it is possible to refer to the of solving three environmental problems at once.
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Affiliation(s)
- Bárbara Luiza Brandenburg Dos Santos
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil
| | - Yasmin Vieira
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil
| | - Manal F Abou Taleb
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Mohamed M Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Mirela Araujo Reis
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil
| | - Bruna Figueiredo do Nascimento
- Department of Chemical Engineering, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235, 50670-910, Recife, PE, Brazil
| | | | | | - Guilherme Luiz Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil.
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Rehman A, Naeem A, Ahmad I, Fozia F, Almutairi MH, Aslam M, Israr M, Almutairi BO, Ullah Z. Synthesis of Plant-Mediated Iron Oxide Nanoparticles and Optimization of Chemically Modified Activated Carbon Adsorbents for Removal of As, Pb, and Cd Ions from Wastewater. ACS OMEGA 2024; 9:317-329. [PMID: 38222602 PMCID: PMC10785089 DOI: 10.1021/acsomega.3c05299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 01/16/2024]
Abstract
This research study was designed with the aim to prepare plant extract-mediated iron oxide nanoparticles (IONPs) and different chemically modified carbon adsorbents from the Parthenium hysterophorus plant and then optimize the carbon adsorbents by evaluating their adsorption applications in wastewater for the selected metal ions like arsenic (As3+), lead (Pb2+), and cadmium (Cd2+). The Fourier transform infrared spectroscopy (FTIR) technique was used to highlight functional groups in plant-mediated IONPs and chemically modified carbon adsorbents. A scanning electron microscopy study was conducted to explain the surface morphology of the adsorbents. Energy-dispersive X-rays was used for elemental analysis and X-ray diffraction for particle size and crystallinity of the adsorbents. From the study, it was found that the best optimum conditions were pH = 5-6, initial concentration of adsorbate of 10 mg/L, dose of adsorbent of 0.01 g, contact time of 90-120 min of adsorbent and adsorbate, and temperature of 25 °C. At optimum conditions, the adsorption capacities of IONPs for arsenic (As) 144.7 mg/g, lead (Pb) 128.01 mg/g, and cadmium (Cd) ions 122.1 mg/g were recorded. The activated carbon at optimum conditions showed adsorption capacities of 46.35 mg/g for As, 121.95 mg/g for Pb, and 113.25 mg/g for Cd ion. At equilibrium, Langmuir, Freundlich Temkin, and Dubinin-Radushkevich isotherms were applied on the experimental adsorption data having the best R2 values (0.973-0.999) by the Langmuir isotherm. High-correlation coefficient R2 values (0.996-0.999) were obtained from the pseudo-second-order for all cases, showing that the adsorption process proceeds through pseudo second-order kinetics. The apparent adsorption energy E value was in the range of 0.24-2.36 kJ/mol. The adsorption capacity of regenerated IONPs for As gradually decreased from 144.8 to 45.67 mg/g, for lead 128.15 to 41.65 mg/g, and cadmium from 122.10 to 31.20 mg/g in 5 consecutive cycles. The study showed that the synthesized IONPs and acid-activated carbon adsorbent were successfully used to remove selected metal ions from wastewater.
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Affiliation(s)
- Ali Rehman
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Abdul Naeem
- National
Center of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
| | - Ijaz Ahmad
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Fozia Fozia
- Biochemistry
Department, Khyber Medical University Institute
of Dental Sciences, Kohat 26000, Pakistan
| | - Mikhlid H. Almutairi
- Zoology
Department, College of Science, King Saud
University, P.O. Box: 2455, Riyadh 11451, Saudi Arabia
| | - Madeeha Aslam
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Muhammad Israr
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Bader O. Almutairi
- Zoology
Department, College of Science, King Saud
University, P.O. Box: 2455, Riyadh 11451, Saudi Arabia
| | - Zia Ullah
- College
of Professional Studies, Northeastern University, Boston, Massachusetts 02115, United States
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Abdelnaby A, Abdelaleem NM, Elshewy E, Mansour AH, Ibrahim SS. Application of Bentonite Clay, Date Pit, and Chitosan Nanoparticles as Promising Adsorbents to Sequester Toxic Lead and Cadmium from Milk. Biol Trace Elem Res 2023; 201:2650-2664. [PMID: 35829983 PMCID: PMC10020323 DOI: 10.1007/s12011-022-03353-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/01/2022] [Indexed: 11/29/2022]
Abstract
Evaluating residual lead (Pb) and cadmium (Cd) levels in food products, especially milk, is critical for product safety and quality. In this purview, the current study aims to determine Pb and Cd concentrations in milk using atomic absorption spectrophotometry and compare their values with international standards. In addition, it aims to remove these metals from milk samples using low-cost, naturally occurring materials, such as bentonite, date pit, and chitosan nanoparticles. The ability of potential adsorbents was also investigated using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and transmission electron microscope (TEM). Moreover, their impact on milk's nutritional properties was considered. The results revealed that most milk samples contained Pb and Cd, with mean values of 0.237 ± 0.179 and 0.041 ± 0.036 mg/kg, respectively. Furthermore, the three possible adsorbents demonstrated high sequestering ability due to their existing functional groups; the adsorption capacity of bentonite to Pb and Cd was 84 and 88%, date pit was 97 and 93%, and chitosan nanoparticles were 82 and 98%, respectively, with no discernible change in milk nutritional contents. In conclusion, the bentonite, date pit, and chitosan nanoparticles were found to be significantly effective and safe in removing hazardous trace elements (Pb and Cd) from contaminated milk.
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Affiliation(s)
- Amany Abdelnaby
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, 13736, Egypt.
- Agricultural Research Center, Animal Health Research Institute, (Benha Branch), Benha, 13512, Egypt.
| | - Nabila M Abdelaleem
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, 13736, Egypt
| | - Elham Elshewy
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, 13736, Egypt
| | - Ayman H Mansour
- Department of Biotechnology, Agricultural Research Center, Animal Health Research Institute, Dokki,, Giza, 12618, Egypt
| | - Samar S Ibrahim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, 13736, Egypt
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Yan S, Huang K, Zhang F, Ren X, Wang X, Xing P. Geopolymer composite spheres derived from graphene-modified fly ash/slag: Facile synthesis and removal of lead ions in wastewater. ENVIRONMENTAL RESEARCH 2023; 220:115141. [PMID: 36572330 DOI: 10.1016/j.envres.2022.115141] [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: 10/15/2022] [Revised: 11/30/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Geopolymer composite spheres derived from potassium-activated graphene-modified slag/fly ash powder were produced in a polyethylene glycol (PEG 400) solvent. The effect of graphene type (graphene oxide (GO) and few-layered graphene (GNP)) on the pore structure and lead ions (Pb2+) removal performance of the spheres were evaluated. The results showed that the composite spheres modified with GOs (0.1-0.4 wt%) and GNPs (1-4 wt%) could be spheroidized with an improved performance to adsorb Pb2+ in solution. The graphene-containing spheres reached a maximum BET surface area of 68.85 m2/g. Pseudo-second-order and Langmuir isotherm models could express the adsorption process, which was controlled by both monolayer adsorption and chemisorption. The obtained spheres also showed high adsorption capacities for Ni2+, Cu2+, Zn2+ and Cd2+ ions. Chemical, physical, electrostatic, ion exchange and cation-π interaction were attributed to the adsorption mechanism of the spheres. The spheres showed good cycling ability compared to those without graphene, which had potential application in heavy metal wastewater treatment.
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Affiliation(s)
- Shu Yan
- School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819, PR China; Institute for Frontier Technologies of Low-Carbon Steelmaking, Northeastern University, No 11, Lane 3, Wen Hua Road, He Ping District, Shenyang, Liaoning, 110819, PR China; Liaoning Province Engineering Research Center for Technologies of Low-Carbon Steelmaking, Northeastern University, No 11, Lane 3, Wen Hua Road, He Ping District, Shenyang, Liaoning, 110819, PR China.
| | - Kai Huang
- School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819, PR China
| | - Fanyong Zhang
- Research Institute for Energy Equipment Materials, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300132, PR China
| | - Xiaoqi Ren
- School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819, PR China
| | - Xueheng Wang
- School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819, PR China
| | - Pengfei Xing
- School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819, PR China
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Alardhi SM, Fiyadh SS, Salman AD, Adelikhah M. Prediction of methyl orange dye (MO) adsorption using activated carbon with an artificial neural network optimization modeling. Heliyon 2023; 9:e12888. [PMID: 36699265 PMCID: PMC9868482 DOI: 10.1016/j.heliyon.2023.e12888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/03/2022] [Accepted: 01/06/2023] [Indexed: 01/12/2023] Open
Abstract
In this study, methyl orange (MO) dye removal by adsorption utilizing activated carbon made from date seeds (DPAC) was modeled using an artificial neural network (ANN) technique. Instrumental investigations such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) analysis were used to assess the physicochemical parameters of adsorbent. By changing operational parameters including adsorbent dosage (0.01-0.03 g), solution pH 3-8, initial dye concentration (5-20 mg/L), and contact time (2-60 min), the viability of date seeds for the adsorptive removal of methyl orange dye from aqueous solution was assessed in a batch procedure. The system followed the pseudo 2nd order kinetic model for DPAC adsorbent, according to the kinetic study (R2 = 0.9973). The mean square error (MSE), relative root mean square error (RRMSE), root mean square error (RMSE), mean absolute percentage error (MAPE), relative error (RE), and correlation coefficient (R2) were used to measure the ANN model performance. The maximum RE was 8.24% for the ANN model. Two isotherm models, Langmuir and Freundlich, were studied to fit the equilibrium data. Compared with the Freundlich isotherm model (R2 = 0.72), the Langmuir model functioned better as an adsorption isotherm with R2 of 0.9902. Thus, this study demonstrates that the dye removal process can be predicted using an ANN technique, and it also suggests that adsorption onto DPAC may be employed as a main treatment for dye removal from wastewater.
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Affiliation(s)
- Saja Mohsen Alardhi
- Nanotechnology and Advanced Materials Research Center, University of Technology, Baghdad, Iraq
| | - Seef Saadi Fiyadh
- Nanotechnology & Catalysis Research Centre (NANOCAT), IPS Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ali Dawood Salman
- Sustainability Solutions Research Lab, University of Pannonia, Egyetem str. 10, H-8200 Veszprem, Hungary
- Department of Chemical and Petroleum Refining Engineering, College of Oil and Gas Engineering Basra University, Iraq
- Corresponding author. Sustainability Solutions Research Lab, University of Pannonia, Egyetem str. 10, H-8200 Veszprem, Hungary.
| | - Mohammademad Adelikhah
- Institute of Radiochemistry and Radioecology, Research Centre for Biochemical, Environmental and Chemical Engineering, University of Pannonia, 8200 Veszprem, Hungary
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Neskoromnaya EA, Khamizov RK, Melezhyk AV, Memetova AE, Mkrtchan ES, Babkin AV. Adsorption of lead ions (Pb2+) from wastewater using effective nanocomposite GO/CMC/FeNPs: Kinetic, isotherm, and desorption studies. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chatla A, Almanassra IW, Jaber L, Kochkodan V, Laoui T, Alawadhi H, Atieh MA. Influence of calcination atmosphere on Fe doped activated carbon for the application of lead removal from water. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129928] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Hoang AT, Kumar S, Lichtfouse E, Cheng CK, Varma RS, Senthilkumar N, Phong Nguyen PQ, Nguyen XP. Remediation of heavy metal polluted waters using activated carbon from lignocellulosic biomass: An update of recent trends. CHEMOSPHERE 2022; 302:134825. [PMID: 35526681 DOI: 10.1016/j.chemosphere.2022.134825] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/25/2022] [Accepted: 04/29/2022] [Indexed: 06/14/2023]
Abstract
The use of a cheap and effective adsorption approach based on biomass-activated carbon (AC) to remediate heavy metal contamination is clearly desirable for developing countries that are economically disadvantaged yet have abundant biomass. Therefore, this review provides an update of recent works utilizing biomass waste-AC to adsorb commonly-encountered adsorbates like Cr, Pb, Cu, Cd, Hg, and As. Various biomass wastes were employed in synthesizing AC via two-steps processing; oxygen-free carbonization followed by activation. In recent works related to the activation step, the microwave technique is growing in popularity compared to the more conventional physical/chemical activation method because the microwave technique can ensure a more uniform energy distribution in the solid adsorbent, resulting in enhanced surface area. Nonetheless, chemical activation is still generally preferred for its ease of operation, lower cost, and shorter preparation time. Several mechanisms related to heavy metal adsorption on biomass wastes-AC were also discussed in detail, such as (i) - physical adsorption/deposition of metals, (ii) - ion-exchange between protonated oxygen-containing functional groups (-OH, -COOH) and divalent metal cations (M2+), (iii) - electrostatic interaction between oppositely-charged ions, (iv) - surface complexation between functional groups (-OH, O2-, -CO-NH-, and -COOH) and heavy metal ions/complexes, and (v) - precipitation/co-precipitation technique. Additionally, key parameters affecting the adsorption performance were scrutinized. In general, this review offers a comprehensive insight into the production of AC from lignocellulosic biomass and its application in treating heavy metals-polluted water, showing that biomass-originated AC could bring great benefits to the environment, economy, and sustainability.
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Affiliation(s)
- Anh Tuan Hoang
- Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam.
| | - Sunil Kumar
- CSIR-NEERI, Nehru Marg, Nagpur, 440 020, India
| | - Eric Lichtfouse
- Aix-Marseille University, CNRS, IRD, INRA, CEREGE, Aix-en-Provence, 13100, France.
| | - Chin Kui Cheng
- Department of Chemical Engineering, College of Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Center for Catalysis and Separation (CeCaS), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Rajender S Varma
- Sustainable Technology Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 West M.L.K. Drive, MS 443, Cincinnati, OH, 45268, United States
| | - N Senthilkumar
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, 602105, India
| | - Phuoc Quy Phong Nguyen
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam
| | - Xuan Phuong Nguyen
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam.
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Wang X, Ma S, Wang X, Cheng T, Dong J, Feng K. The Mechanism of Cu 2+ Sorption by Rice Straw Biochar and Its Sorption-Desorption Capacity to Cu 2+ in Soil. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:562-570. [PMID: 35657400 DOI: 10.1007/s00128-022-03538-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: 08/31/2021] [Accepted: 04/19/2022] [Indexed: 06/15/2023]
Abstract
Copper (Cu) pollution in soils has received considerable research attention globally, and biochar has been widely used as an adsorbent for soil pollution of Cu. However, most of the studies focused on the adsorption capacity of biochar, the bioavailability of Cu absorbed by biochar remains unclear. In this work, rice straw biomass was pyrolyzed under oxygen-limited conditions at 400°C (BC400) and 600°C (BC600), their apparent structure, group characteristics, and basic physical and chemical properties were determined. The isothermal and kinetics adsorption of Cu by BC400 and BC600 were analyzed. A pot experiment was used to evaluate the passivation of Cu in the soil by biochar and the bioavailability of Cu adsorbed by biochar in the soil. The smooth surfaces of BC400 evolved into more rough surfaces for BC600, and both types of surfaces may give active sorption sites for Cu, according to SEM pictures. FTIR analysis suggested that BC600 is endowed with more condensed aromatic carbon structures and more available polar functional groups. The adsorption processes of Cu2+ by biochar were better fitted Langmuir equation and pseudo-second-order kinetic model. The adsorption isotherms showed monolayer adsorption of Cu2+ on biochar. The maximum adsorption capacities of BC600 and BC400 on Cu2+ were 43.75 and 30.70 mg g-1, respectively. Moreover, the pot experiment showed that BC400 and BC600 not only have a strong "passivation" effect on Cu in soil but also prevent the release of adsorbed Cu. Overall, more aromatic carbon structure, more polar functional groups, and higher pH are associated with BC600's increased Cu immobilization ability in soil.
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Affiliation(s)
- Xiaobing Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China.
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing, 210095, China.
| | - Shuai Ma
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Xiaoli Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Tong Cheng
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Junneng Dong
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Ke Feng
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing, 210095, China
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Ali NS, Jabbar NM, Alardhi SM, Majdi HS, Albayati TM. Adsorption of methyl violet dye onto a prepared bio-adsorbent from date seeds: isotherm, kinetics, and thermodynamic studies. Heliyon 2022; 8:e10276. [PMID: 36042747 PMCID: PMC9420514 DOI: 10.1016/j.heliyon.2022.e10276] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/07/2022] [Accepted: 08/09/2022] [Indexed: 11/24/2022] Open
Abstract
Raw date seeds, as prospective natural, broadly obtainable and low-price agricultural waste for adsorbing cationic dyes from aqueous solutions, have been studied. In this work, Iraqi date seeds were prepared and characterised using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and Brunauer–Emmett–Teller (BET) surface area analysis before being used as an efficient bio-adsorbent for methyl violet (MV) dye removal. Adsorption tests were conducted with three investigated parameters, namely, time of contact, first adsorbate concentration and adsorbent dose. Compared with the pseudo first-order model (coefficient of determination = 0.9001), the pseudo second-order model was determined to be the best-fitting model with a coefficient of determination (R2) of 0.9917. The equilibrium isotherms for MV were obtained, and their ultimate capacity of adsorption was (59.5 mg g1). Two isotherm models, Langmuir and Freundlich, were studied to fit the equilibrium data. Compared with the Freundlich isotherm model (R2 = 0.8154), the Langmuir model functioned better as an adsorption isotherm with R2 of 0.9837. In addition, the adsorption process was endothermic and spontaneous. The date seeds acted as active adsorbents to remove MV from the aqueous solutions in the model experiments.
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Affiliation(s)
- Nisreen S Ali
- Mustansiriyah University, College of Engineering, Materials Engineering Department, Baghdad, Iraq
| | - Noor M Jabbar
- Biochemical Engineering Department, Al-Khwarizmi Engineering College, University of Baghdad, Baghdad, Iraq
| | - Saja M Alardhi
- Nanotechnology and Advanced Materials Research Center, University of Technology, Iraq
| | - Hasan Sh Majdi
- Chemical Engineering Department and Petroleum Industries, Al-Mustaqbal University College, Babylon 51001, Iraq
| | - Talib M Albayati
- Chemical Engineering Department, University of Technology- Iraq, 52 Alsinaa St., PO Box 35010, Baghdad, Iraq
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14
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El-Nemr MA, El Nemr A, Hassaan MA, Ragab S, Tedone L, De Mastro G, Pantaleo A. Microporous Activated Carbon from Pisum sativum Pods Using Various Activation Methods and Tested for Adsorption of Acid Orange 7 Dye from Water. Molecules 2022; 27:4840. [PMID: 35956788 PMCID: PMC9369958 DOI: 10.3390/molecules27154840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/18/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
This work demonstrates the preparation of high-surface-area activated carbon (AC) from Pisum sativum pods using ZnCl2 and KOH as activating agents. The influence of CO2 and N2 gases during the carbonization process on the porosity of AC were studied. The highest specific surface area of AC was estimated at 1300 to 1500 m2/g, which presented characteristics of microporous materials. SEM micrographs revealed that chemical activation using an impregnation reagent ZnCl2 increases the porosity of the AC, which in turn leads to an increase in the surface area, and the SEM image showed that particle size diameter ranged between 48.88 and 69.95 nm. The performance of prepared AC for adsorption of Acid Orange 7 (AO7) dye was tested. The results showed that the adsorption percentage by AC (2.5 g/L) was equal to 94.76% after just 15 min, and the percentage of removal increased to be ~100% after 60 min. The maximum adsorption capacity was 473.93 mg g-1. A Langmuir model (LM) shows the best-fitted equilibrium isotherm, and the kinetic data fitted better to the pseudo-second-order and Film diffusion models. The removal of AO7 dye using AC from Pisum sativum pods was optimized using a response factor model (RSM), and the results were reported.
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Affiliation(s)
- Mohamed A. El-Nemr
- Department of Chemical Engineering, Faculty of Engineering, Minia University, Minia 61519, Egypt;
| | - Ahmed El Nemr
- National Institute of Oceanography and Fisheries (NIOF), Marine Pollution Lab, Alexandria 21556, Egypt; (M.A.H.); (S.R.)
| | - Mohamed A. Hassaan
- National Institute of Oceanography and Fisheries (NIOF), Marine Pollution Lab, Alexandria 21556, Egypt; (M.A.H.); (S.R.)
| | - Safaa Ragab
- National Institute of Oceanography and Fisheries (NIOF), Marine Pollution Lab, Alexandria 21556, Egypt; (M.A.H.); (S.R.)
| | - Luigi Tedone
- Department of Agriculture and Environmental Sciences, Bari University, 70121 Bari, Italy; (L.T.); (G.D.M.); (A.P.)
| | - Giuseppe De Mastro
- Department of Agriculture and Environmental Sciences, Bari University, 70121 Bari, Italy; (L.T.); (G.D.M.); (A.P.)
| | - Antonio Pantaleo
- Department of Agriculture and Environmental Sciences, Bari University, 70121 Bari, Italy; (L.T.); (G.D.M.); (A.P.)
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15
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Licona-Aguilar ÁI, Torres-Huerta AM, Domínguez-Crespo MA, Palma-Ramírez D, Conde-Barajas E, Negrete-Rodríguez MXL, Rodríguez-Salazar AE, García-Zaleta DS. Reutilization of waste biomass from sugarcane bagasse and orange peel to obtain carbon foams: Applications in the metal ions removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 831:154883. [PMID: 35358521 DOI: 10.1016/j.scitotenv.2022.154883] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
The high levels of heavy metals contained in residual water and the pollution generated by a large amount of unexploited agro-industrial waste are a serious problem for the environment and mankind. Therefore, in the present work, with the aim of treating and reducing the pollution caused by heavy metal ions (Pb, Cd, Zn and Cu), activated carbons (ACs) were synthesized from sugarcane bagasse (SCB) and orange peel (OP) by means of physical - chemical activation method in an acid medium (H3PO4, 85 wt%) followed by an activation at high temperature (500 and 700 °C). Thereafter, these materials were used to produce carbon foams (CF) by the replica method and to evaluate their adsorbent capacity for the removal of heavy metals from synthetic water. XRD, FTIR, DLS, BET, Zeta Potential (ζ), SEM-EDS and AAS were used to investigate their structures, surface area, pore size, morphology, and adsorption capacity. The results show that as-prepared CF have a second level mesoporous structure and AC present a micro-mesoporous structure with a pore diameter between 3 and 4 nm. The experimental adsorption capacities of heavy metals showed that the CF from OP present a better elimination of heavy metals compared to the AC; exhibiting a removal capacity of 95.2 ± 3.96% (Pb) and 94.7 ± 4.88% (Cu) at pH = 5. The adsorption values showed that the optimal parameters to reach a high metal removal are pH values above 5. In the best of cases, the minimum remaining concentration of lead and copper were 2.4 and 2.6 mg L-1, respectively. The experimental data for carbon adsorbents are in accordance with the Langmuir and BET isotherms, with R2 = 0.99 and the maximum homogenous biosorption capacity for lead and copper was Qmax = 968.72 and 754.14 mg g-1, respectively. This study showed that agro-industrial wastes can be effectively retrieved to produce adsorbents materials for wastewater treatment applications.
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Affiliation(s)
- Á I Licona-Aguilar
- Instituto Politécnico Nacional, CICATA-Altamira, CIAMS. km 14.5 carretera Tampico-Puerto Industrial Altamira, Mexico
| | - A M Torres-Huerta
- Instituto Politécnico Nacional, UPIIH, Ciudad del conocimiento y la cultura, Carretera Pachuca-Actopan km. 1+500 San Agustin Tlaxiaca, C.P. 42162, Hidalgo, Mexico.
| | - M A Domínguez-Crespo
- Instituto Politécnico Nacional, UPIIH, Ciudad del conocimiento y la cultura, Carretera Pachuca-Actopan km. 1+500 San Agustin Tlaxiaca, C.P. 42162, Hidalgo, Mexico.
| | - D Palma-Ramírez
- Instituto Politécnico Nacional, Centro Mexicano para la Producción más Limpia (CMPL), Av. Acueducto s/n, la Laguna Ticomán, C.P. 07340 México City, Mexico
| | - E Conde-Barajas
- Laboratory of Environmental Biotechnology, Department Environmental Engineering, TNM/IT de Celaya, Av. Tecnológico y A. García Cubas 600, Celaya 38010 Celaya, Guanajuato, Mexico
| | - M X L Negrete-Rodríguez
- Laboratory of Environmental Biotechnology, Department Environmental Engineering, TNM/IT de Celaya, Av. Tecnológico y A. García Cubas 600, Celaya 38010 Celaya, Guanajuato, Mexico
| | - A E Rodríguez-Salazar
- Instituto Politécnico Nacional, CICATA Querétaro, Cerro Blanco 141, Col. Colinas del Cimatario, C.P. 76090 Santiago de Querétaro, Querétaro, Mexico
| | - D S García-Zaleta
- Universidad Juárez Autónoma de Tabasco, Carretera Estatal Libre Villahermosa-Comalcalco, Km. 27 +000 s/n Ranchería Ribera Alta, C.P. 86205, Tabasco, Mexico
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16
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Wang X, Le H, Guo Y, Zhao Y, Deng X, Zhang J, Zhang L. Preparation of Cellulose Nanocrystals from Jujube Cores by Fractional Purification. Molecules 2022; 27:molecules27103236. [PMID: 35630714 PMCID: PMC9147536 DOI: 10.3390/molecules27103236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/08/2022] [Accepted: 05/17/2022] [Indexed: 01/22/2023] Open
Abstract
Jujube cores are fiber-rich industrial waste. Dewaxing, alkali treatment, bleaching, and sulfuric acid hydrolysis were used to generate cellulose nanocrystals (CNCs) from the jujube cores in this study. The morphological, structural, crystallinity, and thermal properties of the fibers were investigated using FE-SEM, TEM, AFM, FT-IR, XRD, and TGA under various processes. CNCs’ zeta (ζ) potential and water contact angle (WAC) were also investigated. The findings demonstrate that non-fibrous components were effectively removed, and the fiber particles shrunk over time because of many activities. CNCs had a rod-like shape, with a length of 205.7 ± 52.4 nm and a 20.5 aspect ratio. The crystal structure of cellulose Iβ was preserved by the CNCs, and the crystallinity was 72.36%. The temperature of the fibers’ thermal degradation lowered during the operations, although CNCs still had outstanding thermal stability (>200 °C). Aside from the CNCs, the aqueous suspension of CNCs was slightly agglomerated; thus, the zeta (ζ) potential of the CNCs’ suspension was −23.72 ± 1.7 mV, and the powder had high hydrophilicity. This research will be valuable to individuals who want to explore the possibility for CNCs made of jujube cores.
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Affiliation(s)
- Xiaorui Wang
- School of Food Science and Technology, Shihezi University, Shihezi 832003, China; (X.W.); (H.L.); (Y.G.); (Y.Z.); (X.D.)
| | - Hao Le
- School of Food Science and Technology, Shihezi University, Shihezi 832003, China; (X.W.); (H.L.); (Y.G.); (Y.Z.); (X.D.)
| | - Yanmei Guo
- School of Food Science and Technology, Shihezi University, Shihezi 832003, China; (X.W.); (H.L.); (Y.G.); (Y.Z.); (X.D.)
| | - Yunfeng Zhao
- School of Food Science and Technology, Shihezi University, Shihezi 832003, China; (X.W.); (H.L.); (Y.G.); (Y.Z.); (X.D.)
| | - Xiaorong Deng
- School of Food Science and Technology, Shihezi University, Shihezi 832003, China; (X.W.); (H.L.); (Y.G.); (Y.Z.); (X.D.)
| | - Jian Zhang
- School of Food Science and Technology, Shihezi University, Shihezi 832003, China; (X.W.); (H.L.); (Y.G.); (Y.Z.); (X.D.)
- Correspondence: (J.Z.); (L.Z.); Tel.: +86-189-9773-1657 (J.Z.); +86-138-1219-2381 (L.Z.)
| | - Lianfu Zhang
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Correspondence: (J.Z.); (L.Z.); Tel.: +86-189-9773-1657 (J.Z.); +86-138-1219-2381 (L.Z.)
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17
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Fixed-Bed Adsorption of Phenol onto Microporous Activated Carbon Set from Rice Husk Using Chemical Activation. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
In the course of this research, the potential of activated carbon from rice husk was examined as being a phenol removal medium from an aqueous solution in a fixed-bed adsorption column. The activated carbon was characterized through FESEM (Field-Emission Scanning Electron Microscopy) and BET (Brunauer–Emmett–Teller) surface area. According to the FESEM micrograph and BET surface area, RHAC (rice husk activated carbon) had a porous structure with a large surface area of 587 m2·g−1 and mean diameter of pores of 2.06 nm. The concentration effects on the influent phenol (100–2000 mg·L−1), rate of flow (5–10 mL·min−1), and bed depth (8.5–15.3 cm) were examined. It was found that the capacity of bed adsorption increased according to the increase in the influent concentration and bed depth. However, the capacity of bed adsorption decreased according to the increase in the feed flow rate. The regeneration of activated carbon column using 0.1 M sodium hydroxide was found to be effective with a 75% regeneration efficiency after three regeneration cycles. Data on adsorption were observed to be in line with many well-established models (i.e., Yoon–Nelson and Adams–Bohart, as well as bed depth service time models).
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18
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Ultrasound-assisted adsorption of Pb ions by carbonized/activated date stones from singles/mixed aqueous solutions. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2021.100318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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19
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Hoang NB, Ngo TCQ, Tran TKN, Lam VT. Comprehensive review on synthesis, physicochemical properties, and application of activated carbon from the Arecaceae plants for enhanced wastewater treatment. OPEN CHEM 2022. [DOI: 10.1515/chem-2021-0117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Arecaceae presents one of the plant families distributed mainly in the equatorial and subequatorial regions. Arecaceae are widely applied in many fields such as food, cosmetics, fuel, and chemical industries. However, a large amount of agricultural waste from the Arecaceae trees has been released into the environment. The objective of this report is to gain more insights into the potentials and applications of activated carbon (AC) from the Arecaceae trees in wastewater treatment, in which, the ability to handle organic pigments, metals, and antibiotics is focused. The physical properties and processability of AC are statistically evaluated. With a uniform structure, large specific surface area, processing ability according to Langmuir and pseudo-second-order models, we showed that ACs from Arecaceae trees are promising materials for water treatment applications. This is the basis for the development and reduction of by-products that affect the environment.
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Affiliation(s)
- Ngoc Bich Hoang
- Faculty of Food and Environmental Engineering, Nguyen Tat Thanh University , Ho Chi Minh City 700000 , Vietnam
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University , Ho Chi Minh City , Vietnam
| | - Thi Cam Quyen Ngo
- Faculty of Food and Environmental Engineering, Nguyen Tat Thanh University , Ho Chi Minh City 700000 , Vietnam
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University , Ho Chi Minh City , Vietnam
| | - Thi Kim Ngan Tran
- Faculty of Food and Environmental Engineering, Nguyen Tat Thanh University , Ho Chi Minh City 700000 , Vietnam
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University , Ho Chi Minh City , Vietnam
| | - Van Tan Lam
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University , Ho Chi Minh City , Vietnam
- Department of Science and Technology, People’s Committee in Ben Tre , Ben Tre City 86000 , Vietnam
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20
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A review on the physicochemical properties and utilization of date seeds in value-added engineering products. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-04048-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Ravindiran G, Saravanan P, Alagumalai A, Subbarayan S. Soft computing-based models and decolorization of Reactive Yellow 81 using Ulva Prolifera biochar. CHEMOSPHERE 2022; 287:132368. [PMID: 34597636 DOI: 10.1016/j.chemosphere.2021.132368] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/03/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
The present research explores the application of optimization tools namely Response Surface Methodology (RSM), Artificial Neural Network (ANN) and Adaptive Neuro-Fuzzy Inference System (ANFIS) in the decolorization of Reactive Yellow 81 (RY81) from an aqueous solution. The characterization of the biochar was carried out using FTIR, elemental analysis, proximate analysis, BET analysis and Thermogravimetric analysis. Five independent variables namely solution pH, biochar dose, contact time, initial dye concentration and temperature were analyzed using RSM, ANN and ANFIS models. The maximum removal efficiency of 86.4% was obtained and the statistical error analysis was calculated. The correlation coefficient of 0.9665, 0.9998 and 0.9999 was obtained for RSM, ANN and ANFIS models, respectively. Adsorption Isotherm models and kinetic models were used to understand the adsorption mechanism. Maximum monolayer adsorption of 225 mg g-1 was predicted by Hill isotherm model. A partition coefficient of 4.09 L g-1 was obtained at an initial dye concentration of 250 mg L-1. It was revealed from the thermodynamic studies that reactions are endothermic and spontaneous. Further, to check the potential of the biochar, regeneration cycle was studied. The desorption efficiency of 99.5% was achieved at an S/L ratio of 3, regeneration cycles of 2, and sodium hydroxide was found as the best elutant for the desorption.
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Affiliation(s)
- Gokulan Ravindiran
- Department of Civil Engineering, GMR Institute of Technology, Rajam, Srikakulam, Andhra Pradesh, 532 127, India.
| | - Praveen Saravanan
- Department of Civil Engineering, CMR Institute of Technology, Bengaluru, 560037, India
| | - Avinash Alagumalai
- Department of Mechanical Engineering, GMR Institute of Technology, Rajam, Srikakulam, Andhra Pradesh, 532 127, India
| | - Saravanan Subbarayan
- Department of Civil Engineering, National Institute of Technology Tiruchirapalli, Tamil Nadu, 620 015, India
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22
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El-Bindary M, El-Desouky M, El-Bindary A. Adsorption of industrial dye from aqueous solutions onto thermally treated green adsorbent: A complete batch system evaluation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117082] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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23
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Rambabu K, AlYammahi J, Bharath G, Thanigaivelan A, Sivarajasekar N, Banat F. Nano-activated carbon derived from date palm coir waste for efficient sequestration of noxious 2,4-dichlorophenoxyacetic acid herbicide. CHEMOSPHERE 2021; 282:131103. [PMID: 34116312 DOI: 10.1016/j.chemosphere.2021.131103] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/26/2021] [Accepted: 06/02/2021] [Indexed: 06/12/2023]
Abstract
Alarming water contamination rates by toxic herbicides have drawn attention to treat these pollutants using efficient, easy, and economic techniques. In this work, date-palm coir (DPC) waste-based nano-activated carbon (DPC-AC) was successfully prepared and examined for adsorptive removal of toxic 2,4-dichlorophenoxyacetic acid (2,4-DPA) herbicide from synthetic wastewater. The DPC-AC was synthesized via a single-step carbonization-KOH activation approach. The nanosorbent displayed a flaky morphology with graphitic structure and oxygen-rich surface functionalities. The nanocarbon with a mean particle size of 163 nm possessed a high specific surface area of 947 m2/g with an average pore size of 2.28 nm. High 2,4-DPA removal efficiency of 98.6% was obtained for the optimal adsorption conditions of pH 2, dosage 0.15 g, rotational speed 100 rpm, time 90 min, and initial 2,4-DPA concentration of 100 mg/L. Langmuir isotherm best described the equilibrium behavior with a theoretical maximum of 50.25 mg/g adsorption capacity for the system. Pseudo-second order model was more appropriate in quantifying the kinetics for all initial feed concentrations. Thermodynamically, the adsorption process was spontaneous, endothermic, and involved low activation energy. A plausible mechanism for the adsorption-desorption of 2,4-DPA onto DPC-AC is also discussed. Cost analysis and regenerability studies proved the economic value ($3/kg) and reusable nature of DPC-AC without any significant loss in its performance. Overall, this study highlights the advantages of DPC waste valorization into efficient nanoadsorbent and the sequestration of noxious 2,4-DPA herbicide from its aqueous streams using this nanosorbent.
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Affiliation(s)
- K Rambabu
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Jawaher AlYammahi
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - G Bharath
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - A Thanigaivelan
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - N Sivarajasekar
- Laboratory for Bioremediation Research, Unit Operations Lab, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore, India.
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
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24
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Abuelnoor N, AlHajaj A, Khaleel M, Vega LF, Abu-Zahra MRM. Activated carbons from biomass-based sources for CO 2 capture applications. CHEMOSPHERE 2021; 282:131111. [PMID: 34470163 DOI: 10.1016/j.chemosphere.2021.131111] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 06/13/2023]
Abstract
In an ever-growing attempt to reduce the excessive anthropogenic CO2 emissions, several CO2 capture technologies have been developed in recent years. Adsorption using solid carbonaceous materials is one of the many promising examples of these technologies. Carbon-based materials, notably activated carbons, are considered very attractive adsorbents for this purpose given their exceptional thermal stability and excellent adsorption capacities. More importantly, the ability to obtain activated carbons from agricultural wastes and other biomass that are readily available makes them good candidates for several industrial applications ranging from wastewater treatment to CO2 adsorption, among others. Activated carbons from biomass can be prepared using various techniques, resulting in a range of textual properties. They can also be functionalized by adding nitrogen-based groups to their structure that facilitates faster and more efficient CO2 capture. This review provides a detailed overview of the recent work reported in this field, highlighting the different preparation methods and their differences and effects on the textual properties such as pore size, surface area, and adsorption performance in terms of the CO2 adsorption capacity and isosteric heats. The prospect of activated carbon functionalization and its effect on CO2 capture performance is also included. Finally, the review covers some of the pilot-plant scale processes in which these materials have been tested. Some identified gaps in the field have been highlighted, leading to the perspectives for future work.
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Affiliation(s)
- Nada Abuelnoor
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO2 and H2 (RICH Center), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Ahmed AlHajaj
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO2 and H2 (RICH Center), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Maryam Khaleel
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO2 and H2 (RICH Center), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Center for Catalysis and Separation (CeCaS), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Lourdes F Vega
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO2 and H2 (RICH Center), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Center for Catalysis and Separation (CeCaS), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Mohammad R M Abu-Zahra
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO2 and H2 (RICH Center), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
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Giri DD, Shah M, Srivastava N, Hashem A, Abd Allah EF, Pal DB. Sustainable Chromium Recovery From Wastewater Using Mango and Jackfruit Seed Kernel Bio-Adsorbents. Front Microbiol 2021; 12:717848. [PMID: 34659146 PMCID: PMC8519174 DOI: 10.3389/fmicb.2021.717848] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/18/2021] [Indexed: 11/13/2022] Open
Abstract
Wastewater is a rich source of valuable chemicals of industrial importance. However, their economic recovery is crucial for sustainability. The objective of the present work is to recover hexavalent chromium (Cr VI) as a value-added transition metal from wastewater cost-effectively; the biosorbent derived from seed kernels of mango (M) and jackfruit (JF) were applied for removing the metal from simulated wastewater. The functional groups of the biomass were analysed with the help of Fourier transform infrared (FTIR) spectroscopy, micrographs were generated using a scanning electron microscope, and crystallinity was determined by an x-ray diffractometer (XRD). The concentration of Cr VI in wastewater was analysed by an inductively coupled plasma optical emission spectrometer (ICP-OES). Process parameters (pH, dose, contact time, temperature, and initial concentration) were optimized for efficient Cr VI adsorption using a response surface methodology-based Box-Behnken design (BBD) employing Design-software 6.0.8. The batch experiment at room temperature at pH 4.8 and Cr VI removal ∼94% (M) and ∼92% (JF) was achieved by using a 60-mg dose and an initial Cr (VI) concentration of 2 ppm in 120 min. The equilibrium Cr binding on the biosorbent was well explained using Freundlich isotherm (R 2 = 0.97), which indicated the indirect interactions between Cr (VI) and the biosorbent. Biosorption of Cr (VI) followed the pseudo-order and intra-particle diffusion models. The maximum adsorption capacity of the M and JF bio-adsorbent is 517.24 and 207.6 g/mg, respectively. These efficient, cost-effective, and eco-friendly biosorbents could be potentially applied for removing toxic Cr (VI) from polluted water.
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Affiliation(s)
- Deen Dayal Giri
- Department of Botany, Maharaj Singh College, Saharanpur, India
| | - Maulin Shah
- Environmental Technology Limited, Ankeleshwar, India
| | - Neha Srivastava
- Department of Chemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, India
| | - Abeer Hashem
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Elsayed Fathi Abd Allah
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi, India
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Using Pomegranate Peel and Date Pit Activated Carbon for the Removal of Cadmium and Lead Ions from Aqueous Solution. J CHEM-NY 2021. [DOI: 10.1155/2021/5514118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Some agricultural byproducts are useful for solving wastewater pollution problems. These byproducts are of low cost and are effective and ecofriendly. The study aim was to investigate the possibility of using pomegranate peel (PP) and date pit (DP) activated carbon (PPAC and DPAC, respectively) as sorbents to remove Cd(II) and Pb(II) from aqueous solutions. Agricultural wastes of DPs and PPs were subjected to carbonization and chemical activation with H3PO4 (60%) and ZnCl2 and used as adsorbents to remove Cd(II) and Pb(II) from their aqueous solutions. The physical characterizations of PPAC and DPAC, including determination of surface area, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Fourier-transform infrared spectroscopy, were performed. The following factors affected adsorption: solution pH, adsorbent dosage, initial metal ion concentration, and contact time. These factors were studied to identify the optimal adsorption conditions. The results showed that the maximum adsorptions of Cd(II) and Pb(II) were achieved at pH ranging from 6 to 6.5, 90 min contact time, and 0.5 g/L for PPAC and 1 g/L for DPAC dosage. Furthermore, the adsorption efficiencies for both Pb(II) and Cd(II) were higher for PPAC than for DPAC. However, the recorded Qmax values for PPAC were 68.6 and 53.8 mg/g for Pb(II) and Cd(II) and for DPAC were 34.18 and 32.90 mg/g for Pb(II) and Cd(II), respectively. The Langmuir isotherm model fit the adsorption data better than the Freundlich model. Kinetically, the adsorption reaction followed a pseudo-second-order reaction model, with qe ranging from 12.0 to 22.37 mg/g and an R2 value of 0.99.
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27
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Mallakpour S, Sirous F, Hussain CM. Sawdust, a versatile, inexpensive, readily available bio-waste: From mother earth to valuable materials for sustainable remediation technologies. Adv Colloid Interface Sci 2021; 295:102492. [PMID: 34343904 DOI: 10.1016/j.cis.2021.102492] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 12/21/2022]
Abstract
Sawdust or wood shaving is a relatively abundant and inexpensive lignocellulosic compound, which is provided by mother nature. It is a waste of industry and agriculture, that is found in large quantities and has disposal problems. Nowadays, waste management (like sawdust) and research on converting it to different compounds for special applications and goals have been receiving tremendous attention. So, introducing sawdust as a kind of interesting bio-waste and turn it into wealth for diverse utilizations can be mentioned as the main goal of this overview. In this regard, in the first part, sawdust structure and properties are considered. It is then followed by highlighting its wide applications in sustainable water remediation technology, production of activated carbon, oil-water separation, and high-performance composites fabrication. Please come on to start a journey on this motivating topic.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
| | - Fariba Sirous
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran
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Gupta A, Sharma V, Sharma K, Kumar V, Choudhary S, Mankotia P, Kumar B, Mishra H, Moulick A, Ekielski A, Mishra PK. A Review of Adsorbents for Heavy Metal Decontamination: Growing Approach to Wastewater Treatment. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4702. [PMID: 34443225 PMCID: PMC8398132 DOI: 10.3390/ma14164702] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/31/2021] [Accepted: 08/03/2021] [Indexed: 02/05/2023]
Abstract
Heavy metal is released from many industries into water. Before the industrial wastewater is discharged, the contamination level should be reduced to meet the recommended level as prescribed by the local laws of a country. They may be poisonous or cancerous in origin. Their presence does not only damage people, but also animals and vegetation because of their mobility, toxicity, and non-biodegradability into aquatic ecosystems. The review comprehensively discusses the progress made by various adsorbents such as natural materials, synthetic, agricultural, biopolymers, and commercial for extraction of the metal ions such as Ni2+, Cu2+, Pb2+, Cd2+, As2+ and Zn2+ along with their adsorption mechanisms. The adsorption isotherm indicates the relation between the amount adsorbed by the adsorbent and the concentration. The Freundlich isotherm explains the effective physical adsorption of the solute particle from the solution on the adsorbent and Langmuir isotherm gives an idea about the effect of various factors on the adsorption process. The adsorption kinetics data provide valuable insights into the reaction pathways, the mechanism of the sorption reaction, and solute uptake. The pseudo-first-order and pseudo-second-order models were applied to describe the sorption kinetics. The presented information can be used for the development of bio-based water treatment strategies.
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Affiliation(s)
- Archana Gupta
- Department of Chemistry, MCM DAV College for Women, Sector 36,
Chandigarh 160036, India;
| | - Vishal Sharma
- Institute of Forensic Science and Criminology, Panjab University, Chandigarh 160014, India; (S.C.); (P.M.)
| | - Kashma Sharma
- Department of Chemistry, DAV College, Sector-10, Chandigarh 160011, India;
| | - Vijay Kumar
- Department of Physics, National Institute of Technology Srinagar, Srinagar 190006, India;
| | - Sonal Choudhary
- Institute of Forensic Science and Criminology, Panjab University, Chandigarh 160014, India; (S.C.); (P.M.)
| | - Priyanka Mankotia
- Institute of Forensic Science and Criminology, Panjab University, Chandigarh 160014, India; (S.C.); (P.M.)
| | - Brajesh Kumar
- Post Graduate Department of Chemistry, TATA College, Jharkhand, Chaibasa 833202, India;
- Centro de Nanociencia y Nanotecnologia, Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, Sangolqui 171103, Ecuador
| | - Harshita Mishra
- Smart Society Research Team, Faculty of Business and Economics, Mendel University in Brno, 61300 Brno, Czech Republic; (H.M.); (A.M.)
| | - Amitava Moulick
- Smart Society Research Team, Faculty of Business and Economics, Mendel University in Brno, 61300 Brno, Czech Republic; (H.M.); (A.M.)
| | - Adam Ekielski
- Department of Production Engineering, Warsaw University of Life Sciences, 02-787 Warsaw, Poland;
| | - Pawan Kumar Mishra
- Faculty of Business and Economics, Mendel University in Brno, 61300 Brno, Czech Republic
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Kim HJ, Lee JM, Choi JH, Kim DH, Han GS, Jung HS. Synthesis and adsorption properties of gelatin-conjugated hematite (α-Fe 2O 3) nanoparticles for lead removal from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125696. [PMID: 33813295 DOI: 10.1016/j.jhazmat.2021.125696] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/21/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Gelatin-conjugated hematite nanoparticles (HT NPs) are prepared through the solid-state phase transformation in the presence of phosphate. Their adsorption capacity and kinetics are investigated for Pb removal in wastewater. The gelatin-conjugated HT NPs with a size of 4-6 nm exhibit an excellent Pb removal performance, with a high adsorption capacity of 169.49 mg g-1 and a fast equilibrium adsorption kinetics, attributed to the large number of active sites and highly negative charge on the surface of HT NPs. Moreover, the magnetic property of HT NPs enables to selectively collect NPs in the wastewater by using a permanent magnet, leading to its high reusability.
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Affiliation(s)
- Hee Jung Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jae Myeong Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jin Hyuk Choi
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dong Hoe Kim
- Department Nanotechnology & Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Gill Sang Han
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Hyun Suk Jung
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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Habibi H, Dalali N, Ramazani A. Decoration of maleic/acrylic acid onto CoFe 2O 4 as a high-performance nanosorbent for the removal of lead(II) and cadmium(II) from environmental samples. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1811333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hadi Habibi
- Phase Separation & FIA Lab., Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Nasser Dalali
- Phase Separation & FIA Lab., Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Ali Ramazani
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
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31
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Al-Kaabi MA, Zouari N, Da'na DA, Al-Ghouti MA. Adsorptive batch and biological treatments of produced water: Recent progresses, challenges, and potentials. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112527. [PMID: 33895448 DOI: 10.1016/j.jenvman.2021.112527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/27/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
Produced water is responsible for the largest contribution in terms of waste stream volume associated with the production of oil and gas. Characterization of produced water is very crucial for the determination of its main components and constituents for optimal selection of the treatment method. This review aims to review and critically discuss various treatment options that can be considered cost-efficient and environmentally friendly for the removal of different pollutants from produced water. Great efforts and progresses were made in various treatment options, including batch adsorption processes, membrane filtration, advanced oxidation, biological systems, adsorption, coagulation, and combined processes. Chemical precipitation, membrane filtration, and adsorption have high removal efficiencies that can reach more than 90% for different produced water components. The most effective method among these methods is adsorption using different adsorbents media. In this review, date-pits activated carbons, microemulsions-modified date pits, and cellulose nanocrystals as low-cost adsorbents were thoroughly reviewed and discussed. Moreover, the potential of using biological treatments in the removal of various pollutants from produced water such as conventional activated sludge, sequential batch reactor, and fixed-film biological aerated filter reactors were systematically discussed. Generally, produced water can be utilized in various fields including habitat and wildlife, agricultural and irrigation sector, energy sector, fire control, industrial use also power regeneration. The degree of treatment will depend on the application that produced water is being reused in. For instance, to use produced water in oil and gas industries, water will require minimal treatment while for agricultural and drinking purposes high treatment level will be required. It can also be concluded that one specific technique cannot be recommended that will meet all requirements including environmental, reuse, and recycling for sustainable energy. This is because of various dominant factors including the type of field, platform type, chemical composition, geological location, and chemical composition of the production chemicals.
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Affiliation(s)
- Maryam A Al-Kaabi
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, State of Qatar, Doha. P.O. Box: 2713, Qatar
| | - Nabil Zouari
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, State of Qatar, Doha. P.O. Box: 2713, Qatar
| | - Dana Adel Da'na
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, State of Qatar, Doha. P.O. Box: 2713, Qatar
| | - Mohammad A Al-Ghouti
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, State of Qatar, Doha. P.O. Box: 2713, Qatar.
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32
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Danish M, Parthasarthy V, Al Mesfer MK. CO 2 Capture by Low-Cost Date Pits-Based Activated Carbon and Silica Gel. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3885. [PMID: 34300802 PMCID: PMC8303792 DOI: 10.3390/ma14143885] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/01/2021] [Accepted: 07/07/2021] [Indexed: 11/17/2022]
Abstract
The rising levels of CO2 in the atmosphere are causing escalating average global temperatures. The capture of CO2 by adsorption has been carried out using silica gel type III and prepared activated carbon. The date pits-based activated carbon was synthesized using a tubular furnace by physical activation. The temperature of the sample was increased at 10 °C/min and the biomass was carbonized under N2 flow maintained continuously for 2 h at 600 °C. The activation was performed with the CO2 flow maintained constantly for 2 h at 600 °C. The temperature, feed flow and adsorbate volume were the parameters considered for CO2 adsorption. The success of CO2 capture was analyzed by CO2 uptake, efficiency based on column capacity, utilization factors and the mass transfer zone. The massively steep profiles of the breakthrough response of the AC demonstrate the satisfactory exploitation of CO2 uptake under the conditions of the breakthrough. The SG contributed to a maximal CO2 uptake of 8.61 mg/g at 298 K and Co = 5% with F = 5 lpm. The enhanced CO2 uptake of 73.1 mg/g was achieved with a column efficiency of 0.94 for the activated carbon produced from date pits at 298 K. The AC demonstrated an improved performance with a decreased mass transfer zone of 1.20 cm with an enhanced utilization factor f = 0.97 at 298 K. This finding suggests that a date pits-based activated carbon is suitable for CO2 separation by adsorption from the feed mixture.
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Affiliation(s)
- Mohd Danish
- Chemical Engineering Department, College of Engineering, King Khalid University, Abha 61411, Saudi Arabia;
- Chemical Engineering Department, University of Petroleum and Energy Studies, Dehradun 248001, India;
| | - Vijay Parthasarthy
- Chemical Engineering Department, University of Petroleum and Energy Studies, Dehradun 248001, India;
| | - Mohammed K. Al Mesfer
- Chemical Engineering Department, College of Engineering, King Khalid University, Abha 61411, Saudi Arabia;
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34
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Sharma P. Efficiency of bacteria and bacterial assisted phytoremediation of heavy metals: An update. BIORESOURCE TECHNOLOGY 2021; 328:124835. [PMID: 33618184 DOI: 10.1016/j.biortech.2021.124835] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/05/2021] [Accepted: 02/07/2021] [Indexed: 05/12/2023]
Abstract
The aim of this review to address the plant-associated bacteria to enhance the phytoremediation efficiency of the heavy metals from polluted sites and it is also highlighted advances for the application in wastewater treatment. Plant-associated bacteria have potential to encourage the plant growth and resistance under stress conditions. Such bacteria could enhance plant growth by controlling growth hormone, nutrition security, producing siderophore, secondary metabolites, and improving the antioxidant enzymes system. This review also explores the concepts and applications of bacteria assisted phytoremediation, addressing aspects that affect phytoremediation and pathways for restoration. Significant review issues relating to production and application of bacteria for improvement of bioremediation were established and presented for possible future research. Bacteria assisted phytoremediation is cost-effective strategy and metal sequestration mechanism that hold high metal biosorption capacities. This also takes into consideration the current state of technology implementations and proposals for prospective clean-up studies.
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Affiliation(s)
- Pooja Sharma
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar Central University, Lucknow 226 025, Uttar Pradesh, India
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35
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Rambabu K, Thanigaivelan A, Bharath G, Sivarajasekar N, Banat F, Show PL. Biosorption potential of Phoenix dactylifera coir wastes for toxic hexavalent chromium sequestration. CHEMOSPHERE 2021; 268:128809. [PMID: 33187657 DOI: 10.1016/j.chemosphere.2020.128809] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Valorization of waste phytomass into valuable components provide new functionality to these biowastes and annul problems associated with their safe disposal. In this study, date palm (Phoenix dactylifera) coir (DPC) waste was tested for its toxic hexavalent chromium (Cr(VI)) ions biosorption. The DPC biosorbent was subjected to SEM, EDX, FTIR, TGA and N2 adsorption/desorption characterization studies. Results showed that the cellulose-rich DPC surface contained mesopores with a wide number of functional groups and possessed suitable surface attributes for Cr(VI) ions sequestration. Batch biosorption tests established the Cr(VI) ions sequestration potential of the DPC biosorbent with a maximum chromium removal efficiency of 87.2% for a 100 ppm initial feed concentration at pH 2, dosage 0.3 g, temperature 30 °C, contact time 60 min and agitation speed 100 rpm. Langmuir isotherm fitted well (R2 = 0.9955) with the experimental data while the kinetic analysis showed that Cr(VI) ions sequestration by DPC followed the pseudo-second order model. Biosorption thermodynamics revealed the exothermic nature and low-temperature preference for the effective binding of chromium ions on DPC. Regeneration of the biosorbent using NaOH wash showed a nearly steady Cr(VI) ions removal efficiency (with a loss <10%) by the DPC till four recycle runs. Economic analysis showed a very low production cost of $1.09/kg for the DPC biosorbent with a total cost of $4.36/m3 for a scale-up batch process wastewater treatment plant. Thus, a low-cost, effectual and sustainable biosorbent for effective treatment of Cr(VI) ions polluted water streams has been reported.
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Affiliation(s)
- K Rambabu
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - A Thanigaivelan
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - G Bharath
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - N Sivarajasekar
- Laboratory for Bioremediation Research, Unit Operations Lab, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore, India.
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Pau Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Selangor Darul Ehsan, Malaysia.
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36
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Sahmarani R, Net S, Chbib C, Baroudi M, Ouddane B. Elimination of organochlorine pesticides from water by a new activated carbon prepared from Phoenix dactylifera date stones. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10140-10154. [PMID: 33169280 DOI: 10.1007/s11356-020-11445-0] [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: 07/23/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
This work focused on the characterization of activated carbon (AC) prepared by pyrolysis-chemical activation with phosphoric acid (60%) from date stones derived from three categories of date palm Phoenix dactylifera (Ajwa, Anbari, Khudri), and on its feasibility of elimination of organochlorine pesticides (OCPs) in water samples. The obtained results showed that the three-produced AC date stone had developed a porous structure, large specific surface area, and acidic property. Due to the high SBET (> 1200 m2/g), Ajwa stones activated coal was considered as the best AC that can be used for the adsorption of environmental contaminants. The effects of several parameters such as the Ajwa AC dose, the time of contact, the initial concentration of pesticides, and the pH were evaluated. The results showed that the adsorption balance of organochlorine pesticides on this AC was reached after a contact time of 60 min at an optimal pHzpc equal to 2. In addition, 0.4 g of AC was the best quantity found to retain the largest quantity of pesticides while considering the economic part.
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Affiliation(s)
- Rayane Sahmarani
- Université Libanaise, Faculté de santé publique section III, Laboratoire des Sciences de l'Eau et de l'Environnement (L.S.E.E), Tripoli, Lebanon
- Université de Lille, Equipe Physico-Chimie de l'Environnement, LASIR UMR CNRS 8516, Bâtiment C8, 59655, Villeneuve d'Ascq Cedex, France
| | - Sopheak Net
- Université de Lille, Equipe Physico-Chimie de l'Environnement, LASIR UMR CNRS 8516, Bâtiment C8, 59655, Villeneuve d'Ascq Cedex, France.
| | - Chaza Chbib
- Université Libanaise, Faculté de santé publique section III, Laboratoire des Sciences de l'Eau et de l'Environnement (L.S.E.E), Tripoli, Lebanon
| | - Moomen Baroudi
- Université Libanaise, Faculté de santé publique section III, Laboratoire des Sciences de l'Eau et de l'Environnement (L.S.E.E), Tripoli, Lebanon
| | - Baghdad Ouddane
- Université de Lille, Equipe Physico-Chimie de l'Environnement, LASIR UMR CNRS 8516, Bâtiment C8, 59655, Villeneuve d'Ascq Cedex, France
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Mohammadi SZ, Mofidinasab N, Karimi MA, Mosazadeh F. Fast and efficient removal of Pb(II) ion and malachite green dye from wastewater by using magnetic activated carbon-cobalt nanoparticles. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:829-842. [PMID: 33031063 DOI: 10.2166/wst.2020.375] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A high-surface-area and inexpensive activated carbon has been produced from lemon peel using chemical activation with H3PO4 at 500 °C in a N2 atmosphere. Afterwards, the synthesized cobalt nanoparticles using coprecipitation method were adsorbed on the activated carbon surface, and as a result magnetic activated carbon was obtained. Sample characterization has been assessed via X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, nitrogen adsorption-desorption and magnetic properties. It was found that magnetic activated carbon-cobalt nanoparticles (MAC/Co) synthesized had a high saturation magnetization. The MAC/Co revealed super-paramagnetic behaviors at room temperature, and have been readily isolated from solution by using an exterior magnet. Next, adsorption behavior of malachite green and Pb(II) onto the generated MAC/Co has been examined. Sorption kinetics and equilibrium have been studied using batch procedure. The kinetic and isothermal adsorption results were matched completely with the Elovich and Langmuir models, respectively. Based on the Langmuir model, the highest adsorption capacities of malachite green dye and Pb(II) ion respectively were 263.2 and 312.5 mg g-1 at room temperature. Based on the results, the MAC/Co is a probable economic and effective adsorbent that can be employed as a new adsorbent to remove malachite green dye and Pb(II) from wastewater.
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Affiliation(s)
| | | | | | - Farideh Mosazadeh
- School of Public Health, Bam University of Medical Sciences, Bam, Iran
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Rambabu K, Bharath G, Banat F, Show PL. Biosorption performance of date palm empty fruit bunch wastes for toxic hexavalent chromium removal. ENVIRONMENTAL RESEARCH 2020; 187:109694. [PMID: 32485359 DOI: 10.1016/j.envres.2020.109694] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Biosorption ability of date palm empty fruit bunch (DPEFB) was examined for the removal of toxic hexavalent chromium (Cr6+) ions from synthetic wastewater. The pretreated DPEFB biosorbent was studied for its morphology and surface chemistry through Scanning electron microscopy, Energy dispersive elemental analysis and Fourier transform infrared spectroscopy. Effect of biosorption parameters such as pH, biosorbent dosage, contact time, temperature, initial feed concentration and agitation speed on the Cr6+ ions removal efficiency by DPEFB was critically evaluated. The isoelectric point for the DPEFB sorbent was observed at pH 2, above which it was dehydronated to capture the positively charged Cr6+ ions. Batch biosorption studies showed that an optimal chromium removal efficiency of 58.02% was recorded by the DPEFB biosorbent for pH 2, dosage 0.3 g, 100 rpm agitation speed, 120 min contact time, 50 mg/L initial feed concentration and 30 °C operational temperature. Thermodynamic analysis showed that the binding of Cr6+ ions on DPEFB surface was exothermic, stable and favorable at room temperature. Equilibrium behavior of chromium binding on DPEFB was more aligned to Temkin isotherm (R2 = 0.9852) highlighting the indirect interactions between Cr6+ ions and the biosorbent. Kinetic modeling revealed that the biosorption of Cr6+ ions by DPEFB obeyed pseudo-second order model than the pseudo-first order and intra-particle diffusion models. Reusability studies of the DPEFB sorbent showed that NaNO3 was an effective regenerant and the biosorbent can be efficiently reused up to three successive biosorption-desorption cycles for chromium removal. In summary, the results clearly showed that the DPEFB biowaste seems to be an efficient, economic and eco-friendly biosorbent for sustainable removal of toxic hexavalent chromium ions from domestic and industrial wastewater streams.
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Affiliation(s)
- K Rambabu
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - G Bharath
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Pau Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Selangor Darul Ehsan, Malaysia.
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Abstract
A liquid-solid circulating fluidized bed (LSCFB) helps to overcome the shortcomings of conventional fluidized beds by using a particle separation and return system as an integral part of the overall reactor configuration. Batch adsorption experiments were carried out for the removal of phenol from a synthetically prepared solution using fresh activated-carbon-coated glass beads. The morphological features and surface chemistry of the adsorbent were analyzed via SEM and FTIR techniques. The adsorbent dosage, contact time and temperature were varied along with solution pH to assess their effects on the adsorbent performance for phenol removal. Isotherm modeling showed that the phenol removal using the activated-carbon glass beads followed the Langmuir model. Effectively, it was observed at an adsorbent loading of 2.5 g/150 mL of feed volume and a contact time of 3 h produced an 80% efficiency in the batch study. Furthermore, on scaling it up to the column, the desired 98% phenol-removal efficiency was obtained with an adsorbent dosage of 250 g and contact time of 25 min. Adsorbent regeneration using 5% (v/v) ethanol showed a 64% desorption of phenol from the sorbent within 20 min in the LSCFB.
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Removal of methylene blue dye and lead ions from aqueous solution using activated carbon from black cumin seeds. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2020. [DOI: 10.1016/j.sajce.2020.04.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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41
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Mohammadi SZ, Safari Z, Madady N. Synthesis of Co3O4@SiO2 Core/Shell–Nylon 6 Magnetic Nanocomposite as an Adsorbent for Removal of Congo Red from Wastewater. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01485-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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42
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Nutritional Quality and Physico-Chemical Characteristics of Selected Date Fruit Varieties of the United Arab Emirates. Processes (Basel) 2020. [DOI: 10.3390/pr8030256] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Production of highly soluble date sugar powder from the nutritive date fruits will be a suitable and superior alternative to commercial refined sugar, providing sustainability in date palm cultivation. A good understanding of the nutritional and phytochemical composition of date fruits is imperative for this purpose. In this work, 11 different date fruit species commonly cultivated in the United Arab Emirates were studied for their chemical composition, physical properties, amino acids, minerals, and anti-nutritional contents. The results revealed that the date fruits contain moisture, protein, lipid, and ash content in the ranges of 14.8%–20.5%, 2.19%–3.12%, 0.25%–0.51%, and 1.37%–1.97%, respectively. Potassium was identified as the major microelement in all the date varieties. Amino acid assay depicted that the date fruits mainly contained glutamine and aspartic acids, along with other essential acids. Monosaccharides (glucose and fructose) were more prevalent in the date fruits than polysaccharides (sucrose), exhibiting the potential of date fruit for non-diabetic sugar production. Phytoconstituents present in date samples, such as flavonoids, oxalates, tannins, saponins, alkaloids, and cyanides, were also evaluated and reported. Results showed that although all date fruit varieties were nutritious, they contain significant variation in their nutritional, physical, elemental, and phytochemical properties.
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Akhtar FZ, Archana KM, Krishnaswamy VG, Rajagopal R. Remediation of heavy metals (Cr, Zn) using physical, chemical and biological methods: a novel approach. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-019-1918-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Oladipupo Kareem M, Edathil AA, Rambabu K, Bharath G, Banat F, Nirmala GS, Sathiyanarayanan K. Extraction, characterization and optimization of high quality bio-oil derived from waste date seeds. CHEM ENG COMMUN 2019. [DOI: 10.1080/00986445.2019.1650034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | | | - K. Rambabu
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - G. Bharath
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - G. S. Nirmala
- School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - K. Sathiyanarayanan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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Nirmala G, Murugesan T, Rambabu K, Sathiyanarayanan K, Show PL. Adsorptive removal of phenol using banyan root activated carbon. CHEM ENG COMMUN 2019. [DOI: 10.1080/00986445.2019.1674839] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Gnanasundaram Nirmala
- Department of Chemical Engineering, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Thanapalan Murugesan
- Department of Chemical Engineering, Universiti Tecknologi Petronas, Perak, Malaysia
| | - K. Rambabu
- Department of Chemical Engineering, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - K. Sathiyanarayanan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Pau Loke Show
- Department of Chemical Engineering, University of Nottingham-Malaysia Campus, Selangor Darul Ehsan, Malaysia
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Akkaya Sayğılı G, Sayğılı H, Yılmaz C, Güzel F. Lead recovery from aqueous environment by using porous carbon of citrus fruits waste: equilibrium, kinetics and thermodynamic studies. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1653917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Hasan Sayğılı
- Department of Petroleum and Natural Gas Engineering, Faculty of Engineering and Architecture, Batman University, Batman, Turkey
| | - Cumali Yılmaz
- Department of Chemistry, Institute of Science and Technology, Dicle University, Diyarbakir, Turkey
| | - Fuat Güzel
- Department of Chemistry, Faculty of Education, Dicle University, Diyarbakır, Turkey
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Al-Saad K, El-Azazy M, Issa AA, Al-Yafie A, El-Shafie AS, Al-Sulaiti M, Shomar B. Recycling of Date Pits Into a Green Adsorbent for Removal of Heavy Metals: A Fractional Factorial Design-Based Approach. Front Chem 2019; 7:552. [PMID: 31457003 PMCID: PMC6700247 DOI: 10.3389/fchem.2019.00552] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/19/2019] [Indexed: 11/18/2022] Open
Abstract
Date pits (DPs) have been recycled into a low-cost adsorbent for removing of selected heavy metals (HMs) from artificially contaminated aqueous solutions. Adsorption of targeted HMs, both by raw date pits (RDP) and burnt date pits (BDP) was tested. Results showed that BDP is more efficient as an adsorbent and mostly adsorbing Cu(II). A novel approach; fractional factorial design (2k−p – FrFD) was used to build the experimental pattern of this study. The effects of four factors on the maximum percentage (%) of removal (Y) were considered; pH, adsorbent dose (AD), heavy metal concentration (HMC), and contact time (CT). Statistically significant variables were detected using Pareto chart of standardized effects, normal and half-normal plots together with analysis of variance (ANOVA) at 95.0 confidence intervals (CI). Optimizing (maximizing) the percentage (%) removal of Cu(II) by BDP, was performed using optimization plots. Results showed that the factors: pH and adsorbent dose (AD) affect the response positively. Scanning electron microscopy (SEM) was used to study the surface morphology of both adsorbents while fourier-transform infrared spectroscopy (FTIR) was employed to get an idea on the functional groups on the surface and hence the adsorption mechanism. Raman spectroscopy was used to characterize the prepared adsorbents before and after adsorption of Cu(II). Equilibrium studies show that the adsorption behavior differs according to the equilibrium concentration. In general, it follows Langmuir isotherm up to 155 ppm, then Freundlich isotherm. Free energy of adsorption (ΔGad) is −28.07 kJ/mole, when equilibrium concentration is below 155 ppm, so the adsorption process is spontaneous, while (ΔGad) equals +17.89 kJ/mole above 155 ppm, implying that the process is non-spontaneous. Furthermore, the adsorption process is a mixture of physisorption and chemisorption processes, which could be endothermic or exothermic reactions. The adsorption kinetics were described using a second order model.
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Affiliation(s)
- Khalid Al-Saad
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Marwa El-Azazy
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Ahmed A Issa
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Asma Al-Yafie
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Ahmed S El-Shafie
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Maetha Al-Sulaiti
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Basem Shomar
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Doha, Qatar
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48
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Ahamad T, Naushad M, Eldesoky GE, Alqadami AA, Khan A. Synthesis and characterization of egg-albumen-formaldehyde based magnetic polymeric resin (MPR): Highly efficient adsorbent for Cd(II) ion removal from aqueous medium. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110951] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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49
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The Impact of Temperature on the Removal of Inorganic Contaminants Typical of Urban Stormwater. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9071273] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Appropriate management of urban stormwater requires consideration of both water quantity, resulting from flood control requirements, and water quality, being a consequence of contaminant distribution via runoff water. This article focuses on the impact of temperature on the efficiency of stormwater treatment processes in permeable infiltration systems. Studies of the removal capacity of activated carbon, diatomite, halloysite, limestone sand and zeolite for select heavy metals (Cu and Zn) and biogenes (NH4-N and PO4-P) were performed in batch conditions at 3, 6, 10, 15, 22, 30 and 40 °C at low initial concentrations, and maximum sorption capacities determined at 3, 10, 22 and 40 °C. A decrease in temperature to 3 °C reduced the maximum sorption capacities (Qmax) of the applied materials in the range of 10% for diatomite uptake of PO4-P, to 46% for halloysite uptake of Cu. Only the value of Qmax for halloysite, limestone sand and diatomite for NH4-N uptake decreased slightly with temperature increase. A positive correlation was also observed for the equilibrium sorption (Qe) of Cu and Zn for analyses performed at low concentrations (with the exception of Zn sorption on limestone sand). In turn, for biogenes a rising trend was observed only in the range of 3 °C to 22 °C, whereas further temperature increase caused a decrease of Qe. Temperature had the largest influence on the removal of copper and the smallest on the removal of phosphates. It was also observed that the impact of temperature on the process of phosphate removal on all materials and ammonium ions on all materials, with the exception of zeolite, was negligible.
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