101
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Alnajrani MN, Alsager OA. Removal of Antibiotics from Water by Polymer of Intrinsic Microporosity: Isotherms, Kinetics, Thermodynamics, and Adsorption Mechanism. Sci Rep 2020; 10:794. [PMID: 31964938 PMCID: PMC6972944 DOI: 10.1038/s41598-020-57616-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 12/04/2019] [Indexed: 01/30/2023] Open
Abstract
Traces of antibiotics within domestic and industrial effluents have toxic impact on human health as well as surrounding flora and fauna. Potential increase in antibiotic resistance of microorganisms is likely to rise due to the incomplete removal of antibiotics by traditional wastewater processing, methods such as membrane filtration and biological treatment. In this study, we investigated a novel class of material termed Polymer of Intrinsic Microporosity (PIM) that is based on amorphous microporous organic materials for the application of antibiotic removal form aqueous environments. The adsorption of four commonly used antibiotics (doxycycline, ciprofloxacin, penicillin G, and amoxicillin) was evaluated and found that at least 80% of the initial concentrations was eliminated under the optimized conditions. Langmuir and Freundlich models were then employed to correlate the equilibria data; the Freundlich model fit well the data in all cases. For kinetic data, pseudo-first and second order models were examined. Pseudo-second order model fit well the kinetic data and allowed the calculation of the adsorption rate constants. Thermodynamic parameters were obtained by conducting the adsorption studies at varied reaction temperatures. Surface potential, adsorption at various solution pHs, thermogravimetric analysis (TGA), Infrared spectroscopy (IR), and surface area experiments were conducted to draw possible adsorption mechanisms. The removal of antibiotics from water by PIM-1 is likely to be governed by both surface and pore-filling adsorption and could be facilitated by electrostatic interactions between the aromatic rings and charged functional groups as well as hydrogen bond formation between the adsorbent and adsorbate. Our work shows that the application of such novel microporous material could contribute to the removal of such challenging and persistent contaminants from wastewater with further optimizations of large-scale adsorption processes.
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Affiliation(s)
- Mohammed N Alnajrani
- National Center for Irradiation Technology, Nuclear Science Research Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
| | - Omar A Alsager
- National Center for Irradiation Technology, Nuclear Science Research Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia
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102
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Biosorption of Arsenic: An Emerging Eco-technology of Arsenic Detoxification in Drinking Water. ADVANCES IN WATER SECURITY 2020. [DOI: 10.1007/978-3-030-21258-2_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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103
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Jemutai-Kimosop S, Orata F, Shikuku VO, Okello VA, Getenga ZM. Insights on adsorption of carbamazepine onto iron oxide modified diatomaceous earth: Kinetics, isotherms, thermodynamics, and mechanisms. ENVIRONMENTAL RESEARCH 2020; 180:108898. [PMID: 31732171 DOI: 10.1016/j.envres.2019.108898] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/28/2019] [Accepted: 11/04/2019] [Indexed: 05/23/2023]
Abstract
To ameliorate adsorbent recovery by an external magnetic field, naturally occurring diatomaceous earth (DE) was modified with iron-oxide, characterized and applied for adsorption of carbamazepine (CBZ) from synthetic wastewater using batch equilibration method. The fabricated adsorbent was characterized using XRF, XRD, SEM-EDX, FT-IR, BET surface area analysis, VSM and pH of point of zero charge (pHpzc) determination. The adsorption rate was described by the pseudo-first-order (PFO) model suggesting a physisorption controlled rate-determining step. Equilibrium adsorption data were fitted to linear and nonlinear isotherm models, viz Langmuir and Freundlich models, and were best described by Freundlich nonlinear equations implying heterogeneous multilayer adsorption. The best-fitting kinetic and isotherm model was determined using four mathematical error functions. The thermodynamic parameters, namely enthalpy (ΔH = -26.4 kJ mol-1), Gibbs free energy (ΔG = -2.22 kJ mol-1 at 298 K), entropy (ΔS = -34.0 kJ mol-1), indicated that the adsorption was a spontaneous, exothermic, and physical process. The adsorption mechanism is postulated to involve cation-π interactions. Modified diatomaceous earth is a potentially excellent, low-cost, and novel sorbent for CBZ adsorption with 88% removal in 180 min and provides a possible alternative adsorbent for wastewater treatment.
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Affiliation(s)
| | - Francis Orata
- Masinde Muliro University of Science and Technology, P.O.Box 190, Kakamega, Kenya
| | - Victor O Shikuku
- Kaimosi Friends University College, P.O. Box 385-50309, Kaimosi, Kenya.
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104
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Popugaeva D, Kreyman K, Ray AK. Removal of aluminum from alkaline aqueous solution by adsorption on Degussa P25 TiO
2
and vermiculite concrete‐supported ferric oxyhydroxide. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Daria Popugaeva
- Department of Chemical and Biochemical EngineeringUniversity of Western Ontario London Ontario Canada
| | - Konstantin Kreyman
- Department of Chemical and Biochemical EngineeringUniversity of Western Ontario London Ontario Canada
| | - Ajay K. Ray
- Department of Chemical and Biochemical EngineeringUniversity of Western Ontario London Ontario Canada
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105
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Wei C, Huang Y, Liao Q, Xia A, Zhu X, Zhu X. Adsorption thermodynamic characteristics of Chlorella vulgaris with organic polymer adsorbent cationic starch: Effect of temperature on adsorption capacity and rate. BIORESOURCE TECHNOLOGY 2019; 293:122056. [PMID: 31514117 DOI: 10.1016/j.biortech.2019.122056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 06/10/2023]
Abstract
Aiming at optimizing the adsorption process of Chlorella vulgaris and cationic starch, the adsorption thermodynamic characteristics were evaluated. Different from inorganic calcium salt adsorbent, the adsorption nature of organic polymer cationic starch is exothermic (ΔH° < 0) and spontaneous (ΔG° < 0). Besides, the adsorption capacity and rate can be well described by Langmiur isotherm and pseudo second kinetic models. As results of exothermic nature and great driving force of lower temperature, the adsorption capacity and rate declined with the rising temperature. The maximal values of them were obtained at 278.15 K, which were 9148.14 mg microalgae (g cationic starch)-1 and 8.74 × 10-6 mg g-1 min-1. Additionally, with insufficient adsorbent, the highest adsorption efficiency (96.37%) was achieved at 278.15 K for stirring 150 min. For 288.15, 298.15, 308.15 and 318.15 K, the adsorption efficiency decreased to 93.77%, 86.75%, 83.32% and 81.57% and the time consumed were at least 40 min longer.
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Affiliation(s)
- Chaoyang Wei
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Yun Huang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China.
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Ao Xia
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Xianqing Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
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106
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de Freitas GR, Vieira MGA, da Silva MGC. Fixed bed biosorption of silver and investigation of functional groups on acidified biosorbent from algae biomass. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36354-36366. [PMID: 31713141 DOI: 10.1007/s11356-019-06731-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/10/2019] [Indexed: 06/10/2023]
Abstract
This work investigated the use of acidified dealginated residue from Sargassum filipendula algae for biosorption of silver in fixed bed column. This biosorbent was esterified for carboxyl and sulfonate groups to investigate the influence of these groups on silver removal percentage. Potentiometric titration was also evaluated on acidified and esterified biosorbents. Porosity and specific weight were determined by helium picnometry and mercury porosimetry techniques. The results showed that carboxyl and sulfonate groups were significant on silver biosorption. Potentiometric titration showed that esterified and acidified biosorbents presented different acid groups. The porosity of the acidified biosorbent was around 40%. Fixed bed assays were conducted to evaluate the influence of inlet concentration and feed flow rate of silver. Higher percentage removal of silver was obtained at 1.0 mmol · L-1 and 0.5 mL · min-1. Modified dose-response model obtained the best prediction of experimental data among breakthrough curve models.
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Affiliation(s)
- Geovani Rocha de Freitas
- School of Chemical Engineering, Department of Process and Products Design, University of Campinas, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil.
| | - Melissa Gurgel Adeodato Vieira
- School of Chemical Engineering, Department of Process and Products Design, University of Campinas, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil
| | - Meuris Gurgel Carlos da Silva
- School of Chemical Engineering, Department of Process and Products Design, University of Campinas, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil
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107
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Daoud N, Selatnia A. Taguchi Optimization Method for Nickel Removal from Aqueous Solutions Using Non-living Pleurotus mutilus. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2019. [DOI: 10.1007/s13369-019-04108-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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108
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Ivanova LP, Detcheva AK, Vassileva PS. Characterization of Two Bulgarian Herbs for Use as Biosorbents for Copper(II). ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1587447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Lidia Petkova Ivanova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
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109
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de Freitas F, Battirola LD, Arruda R, de Andrade RLT. Assessment of the Cu(II) and Pb(II) removal efficiency of aqueous solutions by the dry biomass Aguapé: kinetics of adsorption. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:751. [PMID: 31732816 DOI: 10.1007/s10661-019-7933-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: 05/20/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Plant-based materials are promising adsorbents for treating liquid effluents. This study describes the kinetic and equilibrium parameters that best represent the copper(II) and lead(II) removal process by Eichhornia crassipes (Aguapé) dry biomass from aqueous solution, using a batch adsorption system. The plants were washed, dried, and reduced to small particles. The adsorption kinetics were assessed by varying the metal concentrations in 5, 10, and 20 mg L-1 and a control treatment (without metals) with a mixture contact time of between 5 and 720 min. Equilibrium data were fitted to the Langmuir and Freundlich models. Kinetic assay revealed fast adsorption: kinetic equilibrium was attained within 2 h with a removal efficiency of ~ 60%. The results demonstrated a fast recovery cycle of metals using the biosorbent. The biomass of E. crassipes is low cost with potential for use as a biosorbent to remove metals from solutions.
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Affiliation(s)
- Franciele de Freitas
- Postgraduate Program in Environmental Sciences, Institute of Natural, Human and Social Sciences, Federal University of Mato Grosso (UFMT), Sinop, MT, Brazil.
| | - Leandro Dênis Battirola
- Postgraduate Program in Environmental Sciences, Institute of Natural, Human and Social Sciences, Federal University of Mato Grosso (UFMT), Sinop, MT, Brazil
| | - Rafael Arruda
- Postgraduate Program in Environmental Sciences, Institute of Natural, Human and Social Sciences, Federal University of Mato Grosso (UFMT), Sinop, MT, Brazil
| | - Ricardo Lopes Tortorela de Andrade
- Postgraduate Program in Environmental Sciences, Institute of Natural, Human and Social Sciences, Federal University of Mato Grosso (UFMT), Sinop, MT, Brazil
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110
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Gaikwad A, Joshi M, Patil K, Sathaye S, Rode C. Fluorescent Carbon-Dots Thin Film for Fungal Detection and Bio-labeling Applications. ACS APPLIED BIO MATERIALS 2019; 2:5829-5840. [DOI: 10.1021/acsabm.9b00795] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Aarti Gaikwad
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Meenal Joshi
- Late Prin. B. V. Bhide Foundation, Sir Parashurambhau
College Campus, Pune 411030, India
| | - Kashinath Patil
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Shivaram Sathaye
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Chandrashekhar Rode
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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111
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Optimisation and Modelling of Pb (II) and Cu (II) Biosorption onto Red Algae (Gracilaria changii) by Using Response Surface Methodology. WATER 2019. [DOI: 10.3390/w11112325] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The removal of Pb (II) and Cu (II) ions by using marine red macroalgae (Gracilaria changii) as a biosorbent material was evaluated through the batch equilibrium technique. The effect of solution pH on the removal of metal ions was investigated within the range of 2–7. The response surface methodology (RSM) technique involving central composite design (CCD) was utilised to optimise the three main sorption parameters, namely initial metal ion concentration, contact time, and biosorbent dosage, to achieve maximum ion removal. The models’ adequacy of response was verified by ANOVA. The optimum conditions for removal of Pb (II) and Cu (II) were as follows: pH values of 4.5 and 5, initial concentrations of 40 mg/L, contact times of 115 and 45 min, and biosorbent dosage of 1 g/L, at which the maximum removal percentages were 96.3% and 44.77%, respectively. The results of the adsorption isotherm study showed that the data fitted well with the Langmuir’s model for Pb (II) and Cu (II). The results of the adsorption kinetic study showed that the data fitted well with the pseudo-second order model for Pb (II) and Cu (II). In conclusion, red alga biomass exhibits great potential as an efficient low-cost sorbent for removal of metal ions.
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112
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Liu S, Zheng Y, Ma Y, Sarwar A, Zhao X, Luo T, Yang Z. Evaluation and Proteomic Analysis of Lead Adsorption by Lactic Acid Bacteria. Int J Mol Sci 2019; 20:E5540. [PMID: 31698858 PMCID: PMC6888269 DOI: 10.3390/ijms20225540] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 12/20/2022] Open
Abstract
Heavy metals are a growing threat to human health due to the resulting damage to the ecology; the removal of heavy metals by lactic acid bacteria (LAB) has been a focus of many studies. In this study, 10 LAB strains were evaluated for their ability to absorb and tolerate lead. Lactobacillus plantarum YW11 was found to possess the strongest ability of lead absorbing and tolerance, with the rate of absorption as high as 99.9% and the minimum inhibitory concentration of lead on YW11 higher than 1000 mg/L. Based on the isobaric tags for relative and absolute quantitation (iTRAQ) proteomics analysis of YW11, a total of 2009 proteins were identified both in the lead-treated strain and the control without the lead treatment. Among these proteins, 44 different proteins were identified. The abundance of 25 proteins increased significantly, and 19 proteins decreased significantly in the treatment group. These significantly differential abundant proteins are involved in the biological processes of amino acid and lipid metabolism, energy metabolism, cell wall biosynthesis, and substance transport. This study contributed further understanding of the molecular mechanism of L. plantarum in the binding and removal of lead to explore its potential application in counteracting heavy metal pollution of environment, food, and other fields.
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Affiliation(s)
- Shaoli Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (S.L.)
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
| | - Yi Zheng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (S.L.)
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
| | - Yimiao Ma
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (S.L.)
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
| | - Abid Sarwar
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (S.L.)
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
| | - Xiao Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (S.L.)
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
| | - Tianqi Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (S.L.)
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
| | - Zhennai Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (S.L.)
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
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113
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Kasra-Kermanshahi R, Bahrami-Bavani M, Tajer-Mohammad-Ghazvini P. Microbial clean-up of uranium in the presence of molybdenum using pretreated Acidithiobacillus ferrooxidans. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06819-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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114
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Keshav V, Franklyn P, Kondiah K. Recombinant Fusion Protein PbrD Cross-Linked to Calcium Alginate Nanoparticles for Pb Remediation. ACS OMEGA 2019; 4:16816-16825. [PMID: 31646227 PMCID: PMC6796987 DOI: 10.1021/acsomega.9b01624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/20/2019] [Indexed: 05/12/2023]
Abstract
Lead (Pb) pollution arising from industrial and mining activities has led to widespread environmental toxicity, particularly in South Africa. Humans exposed to Pb are reported to suffer from detrimental health impacts that can lead to fatalities. As such, there is an urgent need to remediate Pb from the environment. In this study, we propose the use of a Pb-specific recombinant fusion metalloprotein, rPbrD surface-cross-linked onto calcium alginate nanoparticles (CANPs) for the biosorption of Pb(II) from aqueous solution. The prepared biosorbents were characterized using scanning electron microscopy, transmission electron microscopy, and dynamic light scattering. Their ability to biosorb soluble Pb(II) was determined by inductively coupled plasma mass spectroscopy and their adsorption mechanism was described according to the Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich adsorption isotherms. The rate of Pb uptake for bare CANPs and rPbrD-CANPs at a concentration of 100 mg/L metal was 3.34 and 8.82 mg/g, respectively, within 30 min. The adsorption data for the bare CANPs best fit the Langmuir isotherm, whereas the adsorption data for rPbrD-CANPs best fitted the Freundlich isotherm. Based on the sorption intensity (n) and the separation factor (R L), both biosorbents represent a favorable adsorption system. These findings suggest that the proposed nanobiosorbent is a promising candidate for the recovery of Pb ions present in high concentrations such as acid mine drainage or industrial effluent.
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Affiliation(s)
- Vidya Keshav
- School
of Molecular and Cell Biology and School of Chemistry, University of Witwatersrand, Private Bag 3, Wits, 2050 Johannesburg, South Africa
| | - Paul Franklyn
- School
of Molecular and Cell Biology and School of Chemistry, University of Witwatersrand, Private Bag 3, Wits, 2050 Johannesburg, South Africa
| | - Kulsum Kondiah
- School
of Molecular and Cell Biology and School of Chemistry, University of Witwatersrand, Private Bag 3, Wits, 2050 Johannesburg, South Africa
- Department
of Biotechnology and Food Technology, University
of Johannesburg, P.O. Box 17011,
Doornfontein, 2028 Johannesburg, South Africa
- E-mail: . Tel: +27 011 559 6102
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115
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Kumar PS, Korving L, van Loosdrecht MC, Witkamp GJ. Adsorption as a technology to achieve ultra-low concentrations of phosphate: Research gaps and economic analysis. WATER RESEARCH X 2019; 4:100029. [PMID: 31334493 PMCID: PMC6614603 DOI: 10.1016/j.wroa.2019.100029] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/02/2019] [Accepted: 03/27/2019] [Indexed: 05/19/2023]
Abstract
Eutrophication and the resulting formation of harmful algal blooms (HAB) causes huge economic and environmental damages. Phosphorus (P) from sewage effluent and agricultural run-off has been identified as a major cause for eutrophication. Phosphorous concentrations greater than 100 μg P/L are usually considered high enough to cause eutrophication. The strictest regulations however aim to restrict the concentration below 10 μg P/L. Orthophosphate (or phosphate) is the bioavailable form of phosphorus. Adsorption is often suggested as technology to reduce phosphate to concentrations less than 100 and even 10 μg P/L with the advantages of a low-footprint, minimal waste generation and the option to recover the phosphate. Although many studies report on phosphate adsorption, there is insufficient information regarding parameters that are necessary to evaluate its application on a large scale. This review discusses the main parameters that affect the economics of phosphate adsorption and highlights the research gaps. A scenario and sensitivity analysis shows the importance of adsorbent regeneration and reuse. The cost of phosphate adsorption using reusable porous metal oxide is in the range of $ 100 to 200/Kg P for reducing the phosphate to ultra-low concentrations. Future research needs to focus on adsorption capacity at low phosphate concentrations, regeneration and reuse of both the adsorbent and the regeneration liquid.
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Affiliation(s)
- Prashanth Suresh Kumar
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, the Netherlands
- Department of Biotechnology, Applied Sciences, Delft University of Technology, Building 58, Van der Maasweg 9, 2629, HZ, Delft, the Netherlands
- Corresponding author. Department of Biotechnology, Applied Sciences, Delft University of Technology, Building 58, Van der Maasweg 9, 2629, HZ, Delft, the Netherlands.
| | - Leon Korving
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, the Netherlands
| | - Mark C.M. van Loosdrecht
- Department of Biotechnology, Applied Sciences, Delft University of Technology, Building 58, Van der Maasweg 9, 2629, HZ, Delft, the Netherlands
| | - Geert-Jan Witkamp
- Department of Biotechnology, Applied Sciences, Delft University of Technology, Building 58, Van der Maasweg 9, 2629, HZ, Delft, the Netherlands
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological and Environmental Science and Engineering (BESE), Thuwal, 23955-6900, Saudi Arabia
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116
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Kamboh MA, Wan Ibrahim WA, Rashidi Nodeh H, Zardari LA, Sanagi MM. Fabrication of calixarene-grafted magnetic nanocomposite for the effective removal of lead(II) from aqueous solution. ENVIRONMENTAL TECHNOLOGY 2019; 40:2482-2493. [PMID: 29464995 DOI: 10.1080/09593330.2018.1444100] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 02/17/2018] [Indexed: 06/08/2023]
Abstract
Magnetic nanocomposites adorned with calixarene were successfully prepared by immobilizing diethanolamine functionalized p-tert-butylcalix[4]arene (DEA-Calix) onto silica-coated magnetic nanoparticles (MNPs). The synthesis, surface morphology, purity, elemental composition and thermal stability of newly prepared nanocomposites were analyzed using FT-IR spectroscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDX), X-ray diffractometer (XRD), thermal gravimetric analysis (TGA) and vibrating sample magnetometer (VSM). Magnetic solid-phase adsorption (MSPA) was employed to explore the adsorption behavior of DEA-Calix-MNPs towards Pb(II) from water samples prior to its flame atomic absorption spectrometric analysis. The essential analytical factors governing the adsorption efficiency such as solution pH, mass of adsorbent, concentration and contact time have been investigated and optimized. The results depict that DEA-Calix-MNPs has excellent adsorption efficiency 97% (at pH 5.5) with high adsorption capacity of 51.81 mg g-1 for Pb(II) adsorption. Additionally, kinetic and equilibrium studies suggested that Pb(II) adsorption process follows a pseudo-second-order model and Langmuir isotherms, respectively. Real sample analysis also confirmed field applicability of the new DEA-Calix-MNPs adsorbent.
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Affiliation(s)
- Muhammad Afzal Kamboh
- a Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , Johor , Malaysia
- b Department of Chemistry, Shaheed Benazir Bhutto University, Shaheed Benazirabad , Sindh , Pakistan
| | - Wan Aini Wan Ibrahim
- a Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , Johor , Malaysia
- c Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia , Johor , Malaysia
| | - Hamid Rashidi Nodeh
- d Young Researchers and Elite Club, Science and Research Branch, Islamic Azad University , Tehran , Iran
| | - Liaquat Ali Zardari
- b Department of Chemistry, Shaheed Benazir Bhutto University, Shaheed Benazirabad , Sindh , Pakistan
| | - Mohd Marsin Sanagi
- a Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , Johor , Malaysia
- c Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia , Johor , Malaysia
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Enhanced Gold Biosorption of Lysinibacillus sphaericus CBAM5 by Encapsulation of Bacteria in an Alginate Matrix. METALS 2019. [DOI: 10.3390/met9080818] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Given its variety of properties, including conductivity and slow corrosion, the industrial uses for gold are increasing dramatically. This means that greater amounts of gold are being released into the environment and that a biological approach to recycling gold is of great interest. Lysinibacillus sphaericus, a bacterium capable of metal accumulation inside the cell and adsorption in the external surface, was encapsulated in an alginate matrix to improve the capture of gold from aqueous media. In this study, L. sphaericus CBAM5 proved to have the greatest potential compared to other strains and, following its encapsulation, the efficiency for the removal of the precious metal, at a concentration of 60 ppm, was 100% after three hours of exposure. It was identified that the alginate spheres with bacteria could also be reused. In fact, an efficiency of 60% was retained after three cycles of utilization. Thus, alginate acts as an adequate immobilization matrix for bacteria as a highly effective gold capture mechanism, which also shows great potential as an alternative for biotechnological applications.
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Safe Cultivation of Medicago sativa in Metal-Polluted Soils from Semi-Arid Regions Assisted by Heat- and Metallo-Resistant PGPR. Microorganisms 2019; 7:microorganisms7070212. [PMID: 31336693 PMCID: PMC6680742 DOI: 10.3390/microorganisms7070212] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/05/2019] [Accepted: 07/18/2019] [Indexed: 11/16/2022] Open
Abstract
Soil contamination with heavy metals is a constraint for plant establishment and development for which phytoremediation may be a solution, since rhizobacteria may alleviate plant stress under these conditions. A greenhouse experiment was conducted to elucidate the effect of toxic metals on growth, the activities of ROS (reactive oxygen species)-scavenging enzymes, and gene expression of Medicago sativa grown under different metal and/or inoculation treatments. The results showed that, besides reducing biomass, heavy metals negatively affected physiological parameters such as chlorophyll fluorescence and gas exchange, while increasing ROS-scavenging enzyme activities. Inoculation of M. sativa with a bacterial consortium of heat- and metallo-resistant bacteria alleviated metal stress, as deduced from the improvement of growth, lower levels of antioxidant enzymes, and increased physiological parameters. The bacteria were able to effectively colonize and form biofilms onto the roots of plants cultivated in the presence of metals, as observed by scanning electron microscopy. Results also evidenced the important role of glutathione reductase (GR), phytochelatin synthase (PCS), and metal transporter NRAMP1 genes as pathways for metal stress management, whereas the gene coding for cytochrome P450 (CP450) seemed to be regulated by the presence of the bacteria. These outcomes showed that the interaction of metal-resistant rhizobacteria/legumes can be used as an instrument to remediate metal-contaminated soils, while cultivation of inoculated legumes on these soils is still safe for animal grazing, since inoculation with bacteria diminished the concentrations of heavy metals accumulated in the aboveground parts of the plants to below toxic levels.
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119
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Karim Z, Svedberg A, Lee KY, Khan MJ. Processing-Structure-Property Correlation Understanding of Microfibrillated Cellulose Based Dimensional Structures for Ferric Ions Removal. Sci Rep 2019; 9:10277. [PMID: 31311981 PMCID: PMC6635390 DOI: 10.1038/s41598-019-46812-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 07/05/2019] [Indexed: 11/09/2022] Open
Abstract
In this research article, wood based microfibrillated cellulose (MFC) was studied to gain a better understanding of the process of dependent network formation. Networking potential and obtained properties of the produced dimensional structures could be controlled using opted processing routes. The fabricated dimensional structure, using freeze-drying (FD) is a highly open and porous network (98% porosity) compared to slightly tight, dense and less porous network produced after pressing at 200kN (96% porosity), followed by vacuum-filtered (VF) networks (33% porosity). The porosity (17%) was further decreased when the casting (CS) method was used, further producing a highly dense and compressed network. High water flux (180.8 ± 11 L/m2h) of pressed freeze-dried (PFD) followed by vacuum-filtered (VF) (11.4 ± 1.9 L/m2h) and casting CS (0.7 ± 0.01 L/m2h) were calculated using device. Furthermore, increased water flux (1.4 fold) of Experimental Paper Machine (XPM) based structures was reported in comparison with CS structures. Pore-sized distribution and surface area were measured using Hg porosimetry; they showed an average pore size of 16.5 μm for FD, followed by PFD (8.2 μm) structures. A 27-fold decrease in average pore-size was observed for CS structure in comparison with the FD structures. Highest tensile strength (87 ± 21 MPa) was recorded for CS structures, indicating a more highly compacted network formation compared to VF (82 ± 19 MPa) and PFD (1.6 ± 0.06 MPa). Furthermore, an attempt was made to upscale the VF structures using traditional paper making approach on XMP. Improved tensile strength (73 ± 11 MPa) in machine produced structures is due to alignment of fibers towards machine direction compared to cross directional (43 ± 9 MPa) fractured structures as shown in our Scanning Electron Microscopy (SEM) analysis. Surface functionalization of MFC using enzyme (hexokinase) was performed to increase the adsorption efficiency towards ferric ions removal. All fabricated structures were further evaluated for Fe(iii) removal and it was summarized that charge densities of functional groups, produced ζ-potential and networking potential were dominating influential factors for adsorption fluctuation of ferric ions.
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Affiliation(s)
- Zoheb Karim
- MoRe Research Örnsköldsvik AB, Box 70, SE-89122, Örnsköldsvik, Sweden.
| | - Anna Svedberg
- MoRe Research Örnsköldsvik AB, Box 70, SE-89122, Örnsköldsvik, Sweden
| | - Koon-Yang Lee
- Department of Aeronautics, Faculty of Engineering, Imperial College London, SW7 2AZ, London, UK
| | - Mohd Jahir Khan
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India
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120
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Li Y, Zou G, Zhang X, Yang S, Wang Z, Chen T, Zhang L, Lei J, Zhu W, Duan T. Bio-inspired and assembled fungal hyphae/carbon nanotubes aerogel for water-oil separation. NANOTECHNOLOGY 2019; 30:275601. [PMID: 30822755 DOI: 10.1088/1361-6528/ab0be3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Carbon nanotube (CNT)-based materials have attracted tremendous interest for their high performance in oil separation. However, the preparation of CNT based materials always require harmful and expensive chemicals. Here, a biological assembly route was applied to assemble CNTs onto a fungal hyphae (FH) to produce FH/CNTs composites, followed by pyrolysis to obtain a hydrophobic CNT based aerogel for oil separation, which is a more environmentally friendly process. The as-prepared FH/CNTs-800 aerogel (pyrolyzed at 800 °C) showed hydrophobicity with a water contact angle of 143° and high specific surface area (1041.2 m2 g-1). The oil absorption results showed that the as-prepared FH/CNTs aerogels could absorb a wide range of oils with high absorption capacities ranging from 48 to 138 times their own weight. Furthermore, the oil-loaded aerogel was recycled through burning with little reduction in the oil absorption capacity. In addition, FH/CNTs-800 provided a high specific capacitance of 232 F g-1 at 1 A g-1 and maintained a capacity retention of 70.62% at 20 A g-1. Therefore, this study offers a simple, low-cost and environmentally friendly bioassembly route for large-scale assembly of CNTs into macroscopic 3D hydrophobic aerogels for highly efficient water-oil separation.
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Affiliation(s)
- Yi Li
- State Key Laboratory of Environment-friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, People's Republic of China. Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang 621010, People's Republic of China
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Tran HN, Nguyen DT, Le GT, Tomul F, Lima EC, Woo SH, Sarmah AK, Nguyen HQ, Nguyen PT, Nguyen DD, Nguyen TV, Vigneswaran S, Vo DVN, Chao HP. Adsorption mechanism of hexavalent chromium onto layered double hydroxides-based adsorbents: A systematic in-depth review. JOURNAL OF HAZARDOUS MATERIALS 2019; 373:258-270. [PMID: 30925385 DOI: 10.1016/j.jhazmat.2019.03.018] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 02/05/2019] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
An attempt has been made in this review to provide some insights into the possible adsorption mechanisms of hexavalent chromium onto layered double hydroxides-based adsorbents by critically examining the past and present literature. Layered double hydroxides (LDH) nanomaterials are typical dual-electronic adsorbents because they exhibit positively charged external surfaces and abundant interlayer anions. A high positive zeta potential value indicates that LDH has a high affinity to Cr(VI) anions in solution through electrostatic attraction. The host interlayer anions (i.e., Cl-, NO3-, SO42-, and CO32-) provide a high anion exchange capacity (53-520 meq/100 g) which is expected to have an excellent exchangeable capacity to Cr(VI) oxyanions in water. Regarding the adsorption-coupled reduction mechanism, when Cr(VI) anions make contact with the electron-donor groups in the LDH, they are partly reduced to Cr(III) cations. The reduced Cr(III) cations are then adsorbed by LDH via numerous interactions, such as isomorphic substitution and complexation. Nonetheless, the adsorption-coupled reduction mechanism is greatly dependent on: (1) the nature of divalent and trivalent salts utilized in LDH preparation, and the types of interlayer anions (i.e., guest intercalated organic anions), and (3) the adsorption experiment conditions. The low Brunauer-Emmett-Teller specific surface area of LDH (1.80-179 m2/g) suggests that pore filling played an insignificant role in Cr(VI) adsorption. The Langmuir maximum adsorption capacity of LDH (Qomax) toward Cr(VI) was significantly affected by the natures of used inorganic salts and synthetic methods of LDH. The Qomax values range from 16.3 mg/g to 726 mg/g. Almost all adsorption processes of Cr(VI) by LDH-based adsorbent occur spontaneously (ΔG° <0) and endothermically (ΔH° >0) and increase the randomness (ΔS° >0) in the system. Thus, LDH has much potential as a promising material that can effectively remove anion pollutants, especially Cr(VI) anions in industrial wastewater.
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Affiliation(s)
- Hai Nguyen Tran
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam.
| | - Dong Thanh Nguyen
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Giang Truong Le
- Institute of Chemistry, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Fatma Tomul
- Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Chemistry Department, 15100 Burdur, Turkey
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Seung Han Woo
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseodaero, Yuseong-Gu, Daejeon 305-719, Republic of Korea
| | - Ajit K Sarmah
- Department of Civil & Environmental Engineering, Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Hung Quang Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
| | - Phuong Tri Nguyen
- Department of Chemistry, University of Montreal, Montreal, QC, Canada
| | - Dinh Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, Republic of Korea
| | - Tien Vinh Nguyen
- Faculty of Engineering and IT, University of Technology Sydney (UTS), Sydney, Australia
| | | | - Dai-Viet N Vo
- Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang 26300, Pahang, Malaysia
| | - Huan-Ping Chao
- Department of Environmental Engineering and R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan, 32023, Taiwan.
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122
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Costa F, Lago A, Rocha V, Barros Ó, Costa L, Vipotnik Z, Silva B, Tavares T. A Review on Biological Processes for Pharmaceuticals Wastes Abatement-A Growing Threat to Modern Society. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:7185-7202. [PMID: 31244068 DOI: 10.1021/acs.est.8b06977] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Over the last decades, the production and consumption of pharmaceuticals and health care products grew manifold, allowing an increase in life expectancy and a better life quality for humans and animals, in general. However, the growth in pharmaceuticals production and consumption comes with an increase in waste production, which creates a number of challenges as well as opportunities for the waste management industries. The conventional current technologies used to treat effluents have shown to be inefficient to remove or just to reduce the concentrations of these types of pollutants to the legal limits. The present review provides a thorough state-of-the-art overview on the use of biological processes in the rehabilitation of ecosystems contaminated with the pharmaceutical compounds most commonly detected in the environment and eventually more studied by the scientific community. Among the different biological processes, special attention is given to biosorption and biodegradation.
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Affiliation(s)
- Filomena Costa
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Ana Lago
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Verónica Rocha
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Óscar Barros
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Lara Costa
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Ziva Vipotnik
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Bruna Silva
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Teresa Tavares
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
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123
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de Freitas GR, da Silva MGC, Vieira MGA. Biosorption technology for removal of toxic metals: a review of commercial biosorbents and patents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:19097-19118. [PMID: 31104247 DOI: 10.1007/s11356-019-05330-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
In last decades, the biosorption process has become one of the main alternative treatment technologies for the removal of pollutants from dilute aqueous solution. Among these pollutants, toxic metals have drawn attention due to their negative effects in human body and food chain. Even though biosorption is considered a cost-effective and eco-friendly technology to remove toxic metals from dilute wastewaters, there are still obstacles that restrain its commercialization. For this reason, various scientific articles and patents have been published each year to make more effective and economical this technology. This review reports an overview of past achievements, current research of biosorption studies, and future trends for the development of the biosorption as sustainable cleaner technology. Mechanisms of metal uptake, recovery and biosorbent regeneration, process design, commercial application of biosorbents, and patents registered are presented. Finally, future aspects in biosorption research and suggestions for its application will be discussed.
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Affiliation(s)
- Geovani Rocha de Freitas
- School of Chemical Engineering, Department of Process and Products Design, University of Campinas, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil.
| | - Meuris Gurgel Carlos da Silva
- School of Chemical Engineering, Department of Process and Products Design, University of Campinas, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil
| | - Melissa Gurgel Adeodato Vieira
- School of Chemical Engineering, Department of Process and Products Design, University of Campinas, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil
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124
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Hu H, Gao Y, Wang T, Sun L, Zhang YF, Li H. Removal of hexavalent chromium, an analogue of pertechnetate, from aqueous solution using bamboo (Acidosasa edulis) shoot shell. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06606-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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125
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Liu P, Zhu C, Mathew AP. Mechanically robust high flux graphene oxide - nanocellulose membranes for dye removal from water. JOURNAL OF HAZARDOUS MATERIALS 2019; 371:484-493. [PMID: 30875575 DOI: 10.1016/j.jhazmat.2019.03.009] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 02/14/2019] [Accepted: 03/01/2019] [Indexed: 06/09/2023]
Abstract
Ultrathin graphene oxide (GO) layer was fabricated on cellulose nanofiber (CNF) membrane to achieve robust crosslinker free layered membrane with synergistic water flux and separation performance. Unlike pristine cellulosic or GO membranes, GO-CNF hybrid membranes exhibited significantly improved mechanical stability in both dry and wet states. All membranes showed negative surface zeta potential. GO: CNF membrane (1:100) exhibited significantly high water flux (18,123 ± 574 Lm-2 h-1 bar-1); higher than that of CNF membrane or the hydrophilic commercial reference membrane with comparable pore structure (Nylon 66, 0.2 μm). We hypothyse that a unique surface structure of "standing inserted GO nanosheets" observed at low concentrations of GO contributes enormously to its ultrafast water permeability through creation of numerous water transport nanochannels. The aniosptropic layered membranes exhibited >90% rejection of positively and negatively charged dyes through a combination of electrostatic interaction, hydrophobic interactions and molecular size exclusion. Construction of an ultrathin GO layer on CNF offers a unique and efficient way to prepare highly functional, economical and scalable water purification membranes having significant advantage with respect to flux, mechanical stability and rejection of dyes compared to isotropic membrane with GO nanosheets randomly dispersed in the cellulose nanofibrous network.
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Affiliation(s)
- Peng Liu
- Division of Materials and Environmental Chemistry, Stockholm University, Stockholm, 10691, Sweden
| | - Chuantao Zhu
- Division of Materials and Environmental Chemistry, Stockholm University, Stockholm, 10691, Sweden
| | - Aji P Mathew
- Division of Materials and Environmental Chemistry, Stockholm University, Stockholm, 10691, Sweden.
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Efficient Removal of Cr(VI) from Water by Biochar and Activated Carbon Prepared through Hydrothermal Carbonization and Pyrolysis: Adsorption-Coupled Reduction Mechanism. WATER 2019. [DOI: 10.3390/w11061164] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Three carbonaceous porous materials (biochar and activated carbon) were developed from the Tectona grandis tree sawdust. The applied process of two-stage preparation included pre-treatment through hydrothermal carbonization at 190 °C and subsequent pyrolysis at 800 °C. Two chemical activating agents (K2CO3 and ZnCl2) were used to prepared activated carbons (K2CO3-AC and ZnCl2-AC), respectively. They were characterized by textural property, morphology, and surface element components and applied to remove Cr(VI) from solution at various solution pH values and initial Cr(VI) concentrations. Results showed that the textural parameters (SBET and VTotal) of the prepared material were 1757 m2/g and 1.027 cm3/g for Zn-Cl2-AC, 1013 m2/g and 0.418 cm3/g for K2CO3-AC, and 792 m2/g and 0.345 cm3/g for biochar. The adsorption process reached the highest efficiency at pH 3.0. The Langmuir maximum adsorption capacity indicated the decreasing order: ZnCl2-AC (127 mg/g) > K2CO3-AC (103 mg/g) > biochar (83.5 mg/g). The removal mechanism of Cr(V) from solution was regarded as an adsorption-coupled reduction, namely (1) partial reduction of Cr(VI) into Cr(III) during the adsorption process and (2) adsorption of the Cr(VI) anions through electrostatic attraction and pore filling and the reduced Cr(III) cations through complexation, Cπ–cation interaction, cation exchange, and pore filing. Therefore, the prepared biochar and activated carbon can server as promising adsorbents to efficiently remove both Cr(VI) and Cr(III) from water.
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127
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Kurniawan A, Yamamoto T. Accumulation of NH 4 + and NO 3 - inside Biofilms of Natural Microbial Consortia: Implication on Nutrients Seasonal Dynamic in Aquatic Ecosystems. Int J Microbiol 2019; 2019:6473690. [PMID: 31281363 PMCID: PMC6589304 DOI: 10.1155/2019/6473690] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/09/2019] [Accepted: 05/16/2019] [Indexed: 11/26/2022] Open
Abstract
Microbial biofilms are ubiquitous in aquatic ecosystems. Inside the biofilm is the nutrient-rich microenvironment promoted by the accumulation of the nutrient ions such as NH4 + and NO3 - from surrounding water. The present study investigated the characteristics of NH4 + and NO3 - accumulation into the biofilm of natural microbial consortia collected from Lake Biwa, Japan. The results showed the following: (1) the concentrations of NH4 + and NO3 - inside the biofilm were much higher than those in the surrounding water; (2) the nutrient ion concentration inside the biofilm changed in synchrony with those in the surrounding water; (3) biofilm polymers have both positively and negatively charged sites; (4) electrostatic attractive interactions between the charged sites on biofilm polymers and oppositely charged ions outside the biofilm seem to play important roles in the accumulation of nutrient ions into the biofilm from the surrounding water; (5) the bacterial community structure differs between the biofilm and surrounding water. The present study revealed that the accumulation of nutrient ions into the biofilm indicates the removal of these ions from water outside the biofilm. According to the result of this study, accumulation of ions such as NH4 + and NO3 - into the biofilm of natural microbial consortia may have implications on nutrients seasonal dynamic in aquatic ecosystems.
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Affiliation(s)
- Andi Kurniawan
- Department of Aquatic Resources Management, University of Brawijaya, Malang 65145, Indonesia
- Coastal and Marine Research Centre, University of Brawijaya, Malang 65145, Indonesia
| | - Tatsuya Yamamoto
- College of Life Science, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, Japan
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V K, I A, HW D, K K. Recombinant expression and purification of a functional bacterial metallo-chaperone PbrD-fusion construct as a potential biosorbent for Pb(II). Protein Expr Purif 2019; 158:27-35. [DOI: 10.1016/j.pep.2019.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/25/2019] [Accepted: 02/11/2019] [Indexed: 01/30/2023]
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Carvajal-Flórez E. Technologies applicable to the removal of heavy metals from landfill leachate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:15725-15753. [PMID: 30989600 DOI: 10.1007/s11356-019-04888-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 03/15/2019] [Indexed: 05/28/2023]
Abstract
This article presents a review of the main physical, chemical, electrochemical, and biological technologies used for treating heavy metals in the wastewater of industrial processes and in synthetic aqueous solutions which could be applied to leachate from landfills. This paper outlines the generalities, operating principles, and modifications made to the technologies described. It discusses and assesses which of these have better removal rates and higher levels of efficiency in minimizing the heavy metal concentrations contained in leachates, such as mercury, chromium, lead, nickel, and copper among others. The first part of the document presents the so-called conventional technologies, such as chemical, physical, and electrochemical treatment. These have been used to treat different wastewater, especially industrial waste, operating adequately from the technical topic, but with high costs and the secondary products' production. The second part exposes biological treatments tend to be most widely used due to their versatility, effectiveness, and low cost, when compared with traditional technologies. It is important to note that there is no single treatment and that each of the technologies reviewed has different heavy metal decontamination rates. All technologies search to reduce concentrations of heavy metals to values that are safe for the natural resources where they are discharged or disposed, thereby complying with the regulatory limits regulated in each of the regions.
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130
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Zhao Y, Wang Y, Xiao G, Su H. Fabrication of biomaterial/TiO2 composite photocatalysts for the selective removal of trace environmental pollutants. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2019.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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131
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Salama ES, Roh HS, Dev S, Khan MA, Abou-Shanab RAI, Chang SW, Jeon BH. Algae as a green technology for heavy metals removal from various wastewater. World J Microbiol Biotechnol 2019; 35:75. [DOI: 10.1007/s11274-019-2648-3] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 04/24/2019] [Indexed: 12/21/2022]
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132
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Wan Z, Cho DW, Tsang DCW, Li M, Sun T, Verpoort F. Concurrent adsorption and micro-electrolysis of Cr(VI) by nanoscale zerovalent iron/biochar/Ca-alginate composite. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 247:410-420. [PMID: 30690237 DOI: 10.1016/j.envpol.2019.01.047] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/22/2018] [Accepted: 01/11/2019] [Indexed: 05/20/2023]
Abstract
This study introduced a new approach for simultaneously enhancing Cr(VI) removal performance and mitigating release of dissolved Fe during nanoscale zero-valent iron (nZVI)-mediated reactions. After entrapping nZVI-impregnated biochar (BC) in the matrix of calcium-alginate (CA) bead, the physicochemical characterization of nZVI/BC/CA composites revealed that nZVI/BC particles were embedded inside CA having a spherical shape and several cracks on its outer layer. The multi-functionality of nZVI/BC/CA composites consisting of reductant (nZVI), porous adsorbent (BC), and external screening layer (CA) enhanced the removal of Cr(VI) with the maximum adsorption capacity of 86.4 mg/g (based on the Langmuir isotherm) and little release of dissolved Fe. With the XPS analysis and fitting results of kinetics (pseudo second order) and isotherms (Redlich-Peterson model), plausible removal mechanisms of Cr(VI) were simultaneous adsorption and micro-electrolysis reactions by nZVI/BC/CA composites. The practical applicability of nZVI/BC/CA composites was further demonstrated through the fixed-bed column experiments. These results provide new insights into the design of high-performance engineered biochar for wastewater treatment.
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Affiliation(s)
- Zhonghao Wan
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Dong-Wan Cho
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
| | - Meng Li
- School of Civil Engineering & Architecture, Wuhan University of Technology, China
| | - Tan Sun
- College of Environmental Science and Engineering, Tongji University, China
| | - Francis Verpoort
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, China; Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
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133
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Lacerda ECM, Dos Passos Galluzzi Baltazar M, Dos Reis TA, do Nascimento CAO, Côrrea B, Gimenes LJ. Copper biosorption from an aqueous solution by the dead biomass of Penicillium ochrochloron. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:247. [PMID: 30919116 DOI: 10.1007/s10661-019-7399-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
The present study investigated the effect of contact time, the initial concentration of metal ions, and the biomass dose on the Cu(II) biosorption from an aqueous solution using dead biomass of filamentous fungus Penicillium ochrochloron, which was isolated at the Sossego mine, a copper-contaminated site located in Canaã dos Carajás city, Brazil. The Cu(II) biosorption started rapidly and increased gradually until the equilibrium was reached at 20 min. The Cu(II) uptake decreased as the initial Cu(II) concentration increased, reaching the saturation at 200 mg/L. The Cu(II) biosorption was considerably higher using 0.2 g than 0.5 g of the biomass in 50 mL of solution. The average biosorption capacity of Cu(II) was 7.53 mg/g and the maximum Cu(II) removal 75.0%. The Freundlich and Langmuir isotherm models adequately described the adsorption data. Our results evidenced that the dead biomass of P. ochrochloron has a great potential as a biosorbent to remove copper from an aqueous solution. Therefore, it could be explored for the development of the environmental recovery process.
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Affiliation(s)
- Ellen Cristina Miranda Lacerda
- Programa de Pós-Graduação Interunidades em Biotecnologia, Universidade de São Paulo, Instituto Butantan, Instituto de Pesquisas Tecnológicas, Av. Prof. Lineu Prestes, 2415, CEP 05508-900, Cidade Universitária, São Paulo, SP, Brazil.
- Laboratório de Micotoxinas, Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av. Prof. Lineu Prestes, 1374, CEP 05508-000, Cidade Universitária, São Paulo, SP, Brazil.
- Centro de Capacitação e Pesquisa em Meio Ambiente, Universidade de São Paulo, CEPEMA-POLI-USP, Rod. Conego Domenico Rangoni, km 270, CEP 11540-990, Cubatão, SP, Brazil.
| | - Marcela Dos Passos Galluzzi Baltazar
- Centro de Capacitação e Pesquisa em Meio Ambiente, Universidade de São Paulo, CEPEMA-POLI-USP, Rod. Conego Domenico Rangoni, km 270, CEP 11540-990, Cubatão, SP, Brazil
- Departamento de Engenharia Química, Universidade de São Paulo, POLI-USP, Av. Prof. Lineu Prestes, 580, CEP 05508-000, Cidade Universitária, São Paulo, SP, Brazil
| | - Tatiana Alves Dos Reis
- Laboratório de Micotoxinas, Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av. Prof. Lineu Prestes, 1374, CEP 05508-000, Cidade Universitária, São Paulo, SP, Brazil
| | - Claudio Augusto Oller do Nascimento
- Centro de Capacitação e Pesquisa em Meio Ambiente, Universidade de São Paulo, CEPEMA-POLI-USP, Rod. Conego Domenico Rangoni, km 270, CEP 11540-990, Cubatão, SP, Brazil
- Departamento de Engenharia Química, Universidade de São Paulo, POLI-USP, Av. Prof. Lineu Prestes, 580, CEP 05508-000, Cidade Universitária, São Paulo, SP, Brazil
| | - Benedito Côrrea
- Laboratório de Micotoxinas, Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av. Prof. Lineu Prestes, 1374, CEP 05508-000, Cidade Universitária, São Paulo, SP, Brazil
| | - Luciana Jandelli Gimenes
- Programa de Pós-Graduação Interunidades em Biotecnologia, Universidade de São Paulo, Instituto Butantan, Instituto de Pesquisas Tecnológicas, Av. Prof. Lineu Prestes, 2415, CEP 05508-900, Cidade Universitária, São Paulo, SP, Brazil
- Centro de Capacitação e Pesquisa em Meio Ambiente, Universidade de São Paulo, CEPEMA-POLI-USP, Rod. Conego Domenico Rangoni, km 270, CEP 11540-990, Cubatão, SP, Brazil
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134
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Giese EC, Dekker RFH, Barbosa-Dekker AM. Biosorption of lanthanum and samarium by viable and autoclaved mycelium of Botryosphaeria rhodina
MAMB-05. Biotechnol Prog 2019; 35:e2783. [DOI: 10.1002/btpr.2783] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/11/2018] [Accepted: 02/05/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Ellen C. Giese
- Divisão de Metalurgia Extrativa e Bioprocessos, Centro de Tecnologia Mineral, Rio de Janeiro; Rio de Janeiro Brazil
| | - Robert F. H. Dekker
- Programa de Pós-Graduação em Engenharia Ambiental; Universidade Tecnológica Federal do Paraná; Londrina Paraná Brasil
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135
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Saadani O, Jebara SH, Fatnassi IC, Chiboub M, Mannai K, Zarrad I, Jebara M. Effect of Vicia faba L. var. minor and Sulla coronaria (L.) Medik associated with plant growth-promoting bacteria on lettuce cropping system and heavy metal phytoremediation under field conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8125-8135. [PMID: 30693447 DOI: 10.1007/s11356-019-04302-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Researches involving the use of association between legumes and PGPBs (plant growth-promoting bacteria) in heavy metal phytoremediation process were mainly performed for soils highly contaminated. However, even in agriculture soils, with moderate or low contamination levels, plants can accumulate high rates of heavy metals. So, food chain contamination by these metals presents a real threat to animal and human health. This work aimed to evaluate the use of two legumes/PGPB symbioses; Vicia faba var. minor and Sulla coronaria have been inoculated with specific heavy metal-resistant inocula in a crop rotation system with Lactuca sativa as a following crop, in order to assess their effects on soil fertility, lettuce yield, and heavy metal content. Our results showed that legume inoculation significantly enhanced their biomass production, nitrogen and phosphorus content. The use of our symbioses as green manure before lettuce cultivation, as a rotation cropping system, affected positively soil fertility. In fact, we recorded a higher organic matter content, with rapid decomposition in the soil of inoculated plots. Besides, results demonstrated a greater nitrogen and phosphorus content in this soil, especially in the plot cultivated with inoculated V. faba var. minor. The improvement of soil fertility enhanced lettuce yield and its nitrogen and phosphorus content. Moreover, inoculated legumes extracted and accumulated more heavy metals than non-inoculated legumes. Our symbioses play the role of organic trap for heavy metals, making them unavailable for following crops. These facts were supported by lettuce heavy metal content, showing a significant decrease in metal accumulation, mainly zinc and cadmium, in edible parts. Results showed the usefulness of the studied symbioses, as a main part of a rotation system with lettuce. Our symbioses can be suggested for agriculture soil phytoremediation, aiming to enhance non-legume crop yield and limit heavy metal translocation to food chain.
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Affiliation(s)
- Omar Saadani
- Centre Biotechnology Borj Cedria, University Tunis El Manar, BP 901, 2050, Hammam-Lif, Tunisia
| | - Salwa Harzalli Jebara
- Centre Biotechnology Borj Cedria, University Tunis El Manar, BP 901, 2050, Hammam-Lif, Tunisia
| | | | - Manel Chiboub
- Centre Biotechnology Borj Cedria, University Tunis El Manar, BP 901, 2050, Hammam-Lif, Tunisia
| | - Khediri Mannai
- Centre Biotechnology Borj Cedria, University Tunis El Manar, BP 901, 2050, Hammam-Lif, Tunisia
| | - Imen Zarrad
- Regional Office of Agriculture Development of Monastir, Avenue du Golf Arabe, 5000, Monastir, Tunisia
| | - Moez Jebara
- Centre Biotechnology Borj Cedria, University Tunis El Manar, BP 901, 2050, Hammam-Lif, Tunisia.
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136
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Costa F, Tavares T. Pilot-scale sorption studies of diethylketone in the presence of Cd 2+ and Ni 2. ENVIRONMENTAL TECHNOLOGY 2019; 40:942-953. [PMID: 29187066 DOI: 10.1080/09593330.2017.1411979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 11/24/2017] [Indexed: 06/07/2023]
Abstract
The effect of pH on the sorption capacity of vermiculite towards cadmium and nickel was tested in batch systems and it was shown that the sorption percentages increase with an increase in the mass of vermiculite and with an increase in the initial pH. Maximum sorption percentages were obtained for a pH of 8 and 4 g of vermiculite (86.5% for Cd2+ and 86.1% for Ni2+, for solutions with 100 mg/L of metal). As a consequence, it was possible to establish a range of optimal pH for biosorption processes, by combining the so determined optimal sorption pH of vermiculite with the optimal growth pH of Streptococcus equisimilis, a bacterium used to treat contaminated water. Pilot-scale experiments with a S. equisimilis biofilm supported on vermiculite were conducted in closed-loop conditions, aiming to treat large volumes of diethylketone aqueous solutions, eventually containing Cd2+ or Ni2+. The excellent capacity of this joint system to simultaneously biodegrade diethylketone and biosorb Cd2+ or Ni2+was proved. The removal percentage and the uptake increase through time, even with the replacement of the initial solution by new ones. The breakthrough curves that best describe the results achieved for Cd2+ and Ni2+ are respectively the Adams-Bohart and the Yoon and Nelson model.
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Affiliation(s)
- Filomena Costa
- a Centre of Biological Engineering , University of Minho , Braga , Portugal
| | - Teresa Tavares
- a Centre of Biological Engineering , University of Minho , Braga , Portugal
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137
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Milojković JV, Lopičić ZR, Anastopoulos IP, Petrović JT, Milićević SZ, Petrović MS, Stojanović MD. Performance of aquatic weed - Waste Myriophyllum spicatum immobilized in alginate beads for the removal of Pb(II). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 232:97-109. [PMID: 30468962 DOI: 10.1016/j.jenvman.2018.10.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 06/09/2023]
Abstract
A new biosorbent - alginate encapsulated with Myriophyllum spicatum - MsA was investigated for lead ions removal. This biosorbent was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), zeta potential, X ray Diffraction (XRD) and size distribution analysis. FT-IR analysis demonstrated that the lead ions sequestration mechanism included ion exchange and lead complexation with the carboxyl, carbonyl and hydroxyl groups in MsA. In order to better understand the mechanisms of the binding of Pb(II) on immobilized M. spicatum beads, 3 reaction and one diffusion based kinetic models were applied on kinetic data removal lead ions on three materials: M. spicatum, Ca-alginate and MsA. Myriophyllum spicatum encapsulated with alginate - MsA have higher adsorption capacity than M. spicatum. Among examined six isotherms Redlich-Peterson and the Langmuir isotherm model exhibited the best fit to the experimental data, with capacities ranging from 230 to 268.7 mg/g. Among the various tested desorption agents, nitric acid has proven to be the best. The obtained results suggest that the immobilized M. spicatum biosorbent holds great potential for lead wastewater treatment applications.
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Affiliation(s)
- Jelena V Milojković
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia.
| | - Zorica R Lopičić
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia
| | - Ioannis P Anastopoulos
- Laboratory of Biochemical Engineering & Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, 26504, Patras, Greece
| | - Jelena T Petrović
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia
| | - Sonja Z Milićević
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia
| | - Marija S Petrović
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia
| | - Mirjana D Stojanović
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia
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138
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Fan R, Min H, Hong X, Yi Q, Liu W, Zhang Q, Luo Z. Plant tannin immobilized Fe 3O 4@SiO 2 microspheres: A novel and green magnetic bio-sorbent with superior adsorption capacities for gold and palladium. JOURNAL OF HAZARDOUS MATERIALS 2019; 364:780-790. [PMID: 30447562 DOI: 10.1016/j.jhazmat.2018.05.061] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 04/17/2018] [Accepted: 05/29/2018] [Indexed: 05/11/2023]
Abstract
In this paper, a new core-shell nanostructured magnetic bio-based composite was prepared by immobilizing persimmon tannin (PT) onto Fe3O4@SiO2 microspheres, and the as designed Fe3O4@SiO2@PT was utilized for adsorptive recovery of Au(III) and Pd(II). The preparation, morphology, composition and magnetic property of Fe3O4@SiO2@PT were characterized. Adsorption parameters of Fe3O4@SiO2@PT towards Au(III) and Pd(II) including initial pH, reaction time, initial concentration of metal ions, effect of acidity and interference of coexisting metal ions were investigated. It is sufficiently confirmed that silica was coated on Fe3O4 and persimmon tannin was immobilized on aminated Fe3O4@SiO2. The thickness of silica and loaded persimmon tannin are around 18 nm and 14 nm, respectively. With only 1.00 wt% of persimmon tannin, however, the maximum adsorption capacities of Fe3O4@SiO2@PT for Au(III) and Pd(II) were as high as 917.43 and 196.46 mg·g-1, respectively. In addition, after adsorption of Au(III) and Pd(II), the magnetization saturation values (Ms) of Fe3O4@SiO2@PT were high enough to guarantee efficient magnetic seperation. Metallic gold could be facilely recovered from wastewaters containing Au(III).
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Affiliation(s)
- Ruiyi Fan
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, China
| | - Huiyu Min
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, China
| | - Xingxing Hong
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, China
| | - Qingping Yi
- College of Bioengineering, Jingchu University of Technology, Jingmen 448000, China
| | - Wei Liu
- Nanomaterials and Nanotechnology Research Center (CINN), CSIC and University of Oviedo, San Martín del Rey Aurelio, 33940, Spain
| | - Qinglin Zhang
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, China; Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang Normal University, Huanggang 438000, China
| | - Zhengrong Luo
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, China; Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang Normal University, Huanggang 438000, China.
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139
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Jaafari J, Yaghmaeian K. Optimization of heavy metal biosorption onto freshwater algae (Chlorella coloniales) using response surface methodology (RSM). CHEMOSPHERE 2019; 217:447-455. [PMID: 30439657 DOI: 10.1016/j.chemosphere.2018.10.205] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 10/19/2018] [Accepted: 10/29/2018] [Indexed: 05/24/2023]
Abstract
In this study, the interaction of the initial metal concentration, time of reaction and Chlorella coloniales algae dose were taken for the biosorption of Cr, Cd, Co, Fe and As from aqueous solutions using the Box-Behnken design. The regression equation coefficients were calculated and the data confirmed the validity of second-order polynomial equation for the removal of Cr, Cd, Co, Fe and As with Chlorella coloniales algae. Analysis of variance (ANOVA) showed a high coefficient of determination value (R2) for Cr, Cd, Co, Fe, and As, being respectively 0.998, 0.998, 0.995, 0.998 and 0.994. Heavy metal biosorption increased with the increase in time of reaction from 30 h to 100 h then smoothly steadily decreased. The biosorption capacity of Chlorella coloniales increased when initial Cd concentration was increased from 5 to 12 mg/L, and then no change was seen with further increasing in initial Cd concentration. At low concentrations of heavy metal, Chlorella coloniales showed its effectiveness for Cr, Co, Fe and As bioaccumulation, but at high concentrations of heavy metal bioaccumulation efficiency decreased Under optimal value of process parameters, maximum efficiencies for the removal of Cr, Cd, Co, Fe, and As were 97.8, 97.05, 95.15, 98.6 and 96.5% respectively. The results of the present study suggest that use of C. Coloniales algae can be a good alternative to the current expensive methods of removing heavy metals from aqueous solution.
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Affiliation(s)
- Jalil Jaafari
- Department of Environmental Health, School of Health, Guilan University of Medical Sciences, Rasht, Iran.
| | - Kamyar Yaghmaeian
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran.
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140
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Rangabhashiyam S, Balasubramanian P. Characteristics, performances, equilibrium and kinetic modeling aspects of heavy metal removal using algae. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biteb.2018.07.009] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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141
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Maleke M, Valverde A, Vermeulen JG, Cason E, Gomez-Arias A, Moloantoa K, Coetsee-Hugo L, Swart H, van Heerden E, Castillo J. Biomineralization and Bioaccumulation of Europium by a Thermophilic Metal Resistant Bacterium. Front Microbiol 2019; 10:81. [PMID: 30761115 PMCID: PMC6363818 DOI: 10.3389/fmicb.2019.00081] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 01/15/2019] [Indexed: 01/08/2023] Open
Abstract
Rare earth metals are widely used in the production of many modern technologies. However, there is concern that supply cannot meet the growing demand in the near future. The extraction from low-grade sources such as geothermal fluids could contribute to address the increasing demand for these compounds. Here we investigated the interaction and eventual bioaccumulation of europium (Eu) by a thermophilic bacterium, Thermus scotoductus SA-01. We demonstrated that this bacterial strain can survive in high levels (up to 1 mM) of Eu, which is hundred times higher than typical concentrations found in the environment. Furthermore, Eu seems to stimulate the growth of T. scotoductus SA-01 at low (0.01-0.1 mM) concentrations. We also found, using TEM-EDX analysis, that the bacterium can accumulate Eu both intracellularly and extracellularly. FT-IR results confirmed that carbonyl and carboxyl groups were involved in the biosorption of Eu. Infrared and HR-XPS analysis demonstrated that Eu can be biomineralized by T. scotoductus SA-01 as Eu2(CO3)3. This suggests that T. scotoductus SA-01 can potentially be used for the biorecovery of rare earth metals from geothermal fluids.
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Affiliation(s)
- Maleke Maleke
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
| | - Angel Valverde
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
| | - Jan-G Vermeulen
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
| | - Errol Cason
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
| | - Alba Gomez-Arias
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
- Institution of Groundwater Studies, University of the Free State, Bloemfontein, South Africa
| | - Karabelo Moloantoa
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
| | - Liza Coetsee-Hugo
- Department of Physics, University of the Free State, Bloemfontein, South Africa
| | - Hendrik Swart
- Department of Physics, University of the Free State, Bloemfontein, South Africa
| | - Esta van Heerden
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
- iWATER Solutions, Bloemfontein, South Africa
| | - Julio Castillo
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
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142
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Işıldar A, van Hullebusch ED, Lenz M, Du Laing G, Marra A, Cesaro A, Panda S, Akcil A, Kucuker MA, Kuchta K. Biotechnological strategies for the recovery of valuable and critical raw materials from waste electrical and electronic equipment (WEEE) - A review. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:467-481. [PMID: 30268020 DOI: 10.1016/j.jhazmat.2018.08.050] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 08/14/2018] [Accepted: 08/16/2018] [Indexed: 05/05/2023]
Abstract
Critical raw materials (CRMs) are essential in the development of novel high-tech applications. They are essential in sustainable materials and green technologies, including renewable energy, emissionfree electric vehicles and energy-efficient lighting. However, the sustainable supply of CRMs is a major concern. Recycling end-of-life devices is an integral element of the CRMs supply policy of many countries. Waste electrical and electronic equipment (WEEE) is an important secondary source of CRMs. Currently, pyrometallurgical processes are used to recycle metals from WEEE. These processes are deemed imperfect, energy-intensive and non-selective towards CRMs. Biotechnologies are a promising alternative to the current industrial best available technologies (BAT). In this review, we present the current frontiers in CRMs recovery from WEEE using biotechnology, the biochemical fundamentals of these bio-based technologies and discuss recent research and development (R&D) activities. These technologies encompass biologically induced leaching (bioleaching) from various matrices,biomass-induced sorption (biosorption), and bioelectrochemical systems (BES).
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Affiliation(s)
- Arda Işıldar
- IHE Delft Institute for Water Education, Delft, The Netherlands; Université Paris-Est, Laboratoire Geomatériaux et Environnement (LGE), EA 4508, UPEM, 77454 Marne-la-Vallée, France.
| | - Eric D van Hullebusch
- IHE Delft Institute for Water Education, Delft, The Netherlands; Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Universitè Paris Diderot, UMR 7154, CNRS, F-75005 Paris, France
| | - Markus Lenz
- Fachhochschule Nordwestschweiz, University of Applied Sciences and Arts Northwestern Switzerland, Brugg, Switzerland; Sub-Department of Environmental Technology, Wageningen University, 6700 AA Wageningen, The Netherlands
| | - Gijs Du Laing
- Department of Applied Analytical and Physical Chemistry, Ghent University, Belgium
| | - Alessandra Marra
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Italy
| | - Alessandra Cesaro
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Italy
| | - Sandeep Panda
- Mineral-Metal Recovery and Recycling Research Group, Mineral Processing Division, Department of Mining Engineering, Suleyman Demirel University, TR32260 Isparta, Turkey
| | - Ata Akcil
- Mineral-Metal Recovery and Recycling Research Group, Mineral Processing Division, Department of Mining Engineering, Suleyman Demirel University, TR32260 Isparta, Turkey
| | - Mehmet Ali Kucuker
- Hamburg University of Technology (TUHH), Institute of Environmental Technology and Energy Economics, Waste Resources Management, Harburger Schloßstr. 36, 21079 Hamburg, Germany
| | - Kerstin Kuchta
- Hamburg University of Technology (TUHH), Institute of Environmental Technology and Energy Economics, Waste Resources Management, Harburger Schloßstr. 36, 21079 Hamburg, Germany
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143
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Liu P, Milletto C, Monti S, Zhu C, Mathew AP. Design of ultrathin hybrid membranes with improved retention efficiency of molecular dyes. RSC Adv 2019; 9:28657-28669. [PMID: 35529612 PMCID: PMC9071203 DOI: 10.1039/c9ra04435c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/20/2019] [Indexed: 11/21/2022] Open
Abstract
Nanocellulose–graphene oxide ultrathin coatings for water purification membranes with excellent swelling resistance, permeability and dyes retention are presented.
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Affiliation(s)
- Peng Liu
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Charles Milletto
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Susanna Monti
- CNR-ICCOM
- Institute of Chemistry of Organometallic Compounds
- I-56124 Pisa
- Italy
| | - Chuantao Zhu
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Aji P. Mathew
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
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144
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Sarode S, Upadhyay P, Khosa M, Mak T, Shakir A, Song S, Ullah A. Overview of wastewater treatment methods with special focus on biopolymer chitin-chitosan. Int J Biol Macromol 2019; 121:1086-1100. [DOI: 10.1016/j.ijbiomac.2018.10.089] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/30/2018] [Accepted: 10/14/2018] [Indexed: 11/30/2022]
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Qiu L, Feng J, Dai Y, Chang S. Mechanisms of strontium's adsorption by Saccharomyces cerevisiae: Contribution of surface and intracellular uptakes. CHEMOSPHERE 2019; 215:15-24. [PMID: 30300807 DOI: 10.1016/j.chemosphere.2018.09.168] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/17/2018] [Accepted: 09/28/2018] [Indexed: 06/08/2023]
Abstract
The objective of this work was to explore the mechanisms participating in strontium sorption by living Saccharomyces cerevisiae (S. cerevisiae). The location of strontium adsorbed by S. cerevisiae was studied by our plasmolysis treatment. The contribution of physical and chemical mechanisms was determined quantitatively by desorption and blockage of functional groups. Moreover, our results indicated that bioaccumulation also played a major role in biosorption by living cells. Thus, supplementary methods including 2-DE (two-dimensional electrophoresis) and Matrix-Assisted Laser Desorption/Ionization Tandem Time of Flight Mass Spectrometry (MALDI-TOF-TOF) were employed to analyze the different proteins. The subsequent desorption % of Sr2+ by Distilled Water (DW), NH4NO3 and EDTA-Na2 from Sr2+ loaded sorbents indicated a minor role for physical adsorption, while ion exchange and complexation were responsible for approximately 20% and 40%. Specific blockage of functional groups revealed that carboxyl and amine groups played an important role in Sr2+ binding to the living S. cerevisiae. From our MALDI-TOF-TOF results, we concluded that 38 proteins showed up-regulated expression profiles and 11 proteins showed down-regulated after biosorption. Moreover, proteins belong to: phagocytic function (Act1p); ion channel (S-adenosylmethionine synthase); glycolysis (Tubulin) may directly involve in strontium bioaccumulation. In conclusion, the present work indicates that the strontium sorption mechanism by living S. cerevisiae is complicated including ion-exchange along with complexation as the main mechanism, whereas the other mechanisms such as physical adsorption play a minor contribution. Metabolically-dependent proteins may play an important role in bioaccumulation.
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Affiliation(s)
- Liang Qiu
- Department of Materials Science and Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, PR China
| | - Jundong Feng
- Department of Materials Science and Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, PR China.
| | - Yaodong Dai
- Department of Materials Science and Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, PR China
| | - Shuquan Chang
- Department of Materials Science and Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, PR China
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147
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Padil VVT, Wacławek S, Černík M, Varma RS. Tree gum-based renewable materials: Sustainable applications in nanotechnology, biomedical and environmental fields. Biotechnol Adv 2018; 36:1984-2016. [PMID: 30165173 PMCID: PMC6209323 DOI: 10.1016/j.biotechadv.2018.08.008] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/22/2018] [Accepted: 08/24/2018] [Indexed: 12/22/2022]
Abstract
The prospective uses of tree gum polysaccharides and their nanostructures in various aspects of food, water, energy, biotechnology, environment and medicine industries, have garnered a great deal of attention recently. In addition to extensive applications of tree gums in food, there are substantial non-food applications of these commercial gums, which have gained widespread attention due to their availability, structural diversity and remarkable properties as 'green' bio-based renewable materials. Tree gums are obtainable as natural polysaccharides from various tree genera possessing exceptional properties, including their renewable, biocompatible, biodegradable, and non-toxic nature and their ability to undergo easy chemical modifications. This review focuses on non-food applications of several important commercially available gums (arabic, karaya, tragacanth, ghatti and kondagogu) for the greener synthesis and stabilization of metal/metal oxide NPs, production of electrospun fibers, environmental bioremediation, bio-catalysis, biosensors, coordination complexes of metal-hydrogels, and for antimicrobial and biomedical applications. Furthermore, polysaccharides acquired from botanical, seaweed, animal, and microbial origins are briefly compared with the characteristics of tree gum exudates.
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Affiliation(s)
- Vinod V T Padil
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic.
| | - Stanisław Wacławek
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic
| | - Miroslav Černík
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic.
| | - Rajender S Varma
- Water Resource Recovery Branch, Water Systems Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, MS 483, Cincinnati, Ohio 45268, USA; Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic.
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Diep P, Mahadevan R, Yakunin AF. Heavy Metal Removal by Bioaccumulation Using Genetically Engineered Microorganisms. Front Bioeng Biotechnol 2018; 6:157. [PMID: 30420950 PMCID: PMC6215804 DOI: 10.3389/fbioe.2018.00157] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 10/09/2018] [Indexed: 11/25/2022] Open
Abstract
Wastewater effluents from mines and metal refineries are often contaminated with heavy metal ions, so they pose hazards to human and environmental health. Conventional technologies to remove heavy metal ions are well-established, but the most popular methods have drawbacks: chemical precipitation generates sludge waste, and activated carbon and ion exchange resins are made from unsustainable non-renewable resources. Using microbial biomass as the platform for heavy metal ion removal is an alternative method. Specifically, bioaccumulation is a natural biological phenomenon where microorganisms use proteins to uptake and sequester metal ions in the intracellular space to utilize in cellular processes (e.g., enzyme catalysis, signaling, stabilizing charges on biomolecules). Recombinant expression of these import-storage systems in genetically engineered microorganisms allows for enhanced uptake and sequestration of heavy metal ions. This has been studied for over two decades for bioremediative applications, but successful translation to industrial-scale processes is virtually non-existent. Meanwhile, demands for metal resources are increasing while discovery rates to supply primary grade ores are not. This review re-thinks how bioaccumulation can be used and proposes that it can be developed for bioextractive applications-the removal and recovery of heavy metal ions for downstream purification and refining, rather than disposal. This review consolidates previously tested import-storage systems into a biochemical framework and highlights efforts to overcome obstacles that limit industrial feasibility, thereby identifying gaps in knowledge and potential avenues of research in bioaccumulation.
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Affiliation(s)
| | | | - Alexander F. Yakunin
- BioZone - Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
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Biswas S, Sen TK, Yeneneh AM, Meikap BC. Synthesis and characterization of a novel Ca-alginate-biochar composite as efficient zinc (Zn2+) adsorbent: Thermodynamics, process design, mass transfer and isotherm modeling. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1527353] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Subrata Biswas
- Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
- Chemical Engineering, Curtin University, Perth, Australia
| | | | | | - Bhim Charan Meikap
- Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
- Chemical Engineering, Curtin University, Perth, Australia
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Assessment of microbial products in the biosorption process of Cu(II) onto aerobic granular sludge: Extracellular polymeric substances contribution and soluble microbial products release. J Colloid Interface Sci 2018; 527:87-94. [DOI: 10.1016/j.jcis.2018.05.032] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 11/20/2022]
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