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Amjadi T, Razeghi J, Motafakkerazad R, Zareipour R. Interaction between Haematococcus pluvialis microalgae and lead nitrate: lead adsorption from water. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1168-1179. [PMID: 38165083 DOI: 10.1080/15226514.2023.2298773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Our study aims to investigate the response of the unicellular alga, Haematococcus pluvialis, to the toxicity of lead and propose a low-cost, highly efficient biological adsorbent for the purification of wastewater and lead-contaminated water. The first part examines the effects of lead toxicity on certain physiological indicators of this alga. In the second part, the potential of this alga in lead removal and its adsorption capacity was assessed. The alga was cultivated in a BG11 medium and treated with lead nitrate concentrations of 10, 50, and 200 mg/L during its exponential growth. The results showed that with an increase in lead concentration up to 200 mg/L, the growth rate, chlorophyll a, chlorophyll b, carotenoid and total protein content decreased, while malondialdehyde (MDA) content increased. The astaxanthin content slightly increased at the 10 mg/L but decreased at the 200 mg/L treatment. Maximum lead adsorption was observed at 98.69% under optimal conditions, including a pH of 6, an adsorbent dose of 1 g/L, a lead concentration of 25 mg/L, a temperature of 25 °C, and an exposure time of 120 min. The results of this study demonstrate that Haematococcus pluvialis has the potential for effective lead removal from aquatic environments.
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Affiliation(s)
- Tayebeh Amjadi
- Department of Plant, Cell and Molecular biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Jafar Razeghi
- Department of Plant, Cell and Molecular biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Rouhollah Motafakkerazad
- Department of Plant, Cell and Molecular biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Reza Zareipour
- Department of Chemistry, Azarbaijan Shahid Madani University, Tabriz, Iran
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Nascimento TLS, Oliveira KFS, Junior JOD, Pimenta AS, Melo DMA, Melo MAF, Braga RM. Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar. Sci Rep 2024; 14:5086. [PMID: 38429371 PMCID: PMC10907595 DOI: 10.1038/s41598-024-54442-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/13/2024] [Indexed: 03/03/2024] Open
Abstract
This study aimed to assess the value of Pachira aquatica Aubl. fruit peels by exploring their applicability in the biosorption process for the removal of Ni(II) and Cd(II) metal ions. The Pachira aquatica Aubl. fruit peel biochar (PAB) was extensively characterized through various techniques, including proximate analysis, helium pycnometer, XRD, SEM, point of zero charge determination, zeta potential measurement, and Boehm titration. Subsequently, kinetic, isotherm, and thermodynamic batch biosorption studies were conducted, followed by column biosorption tests. The characteristics of PAB, including low moisture content, a neutral point of zero charge, porosity, an irregular and heterogeneous structure, a negatively charged surface, and the presence of functional groups, indicate its remarkable capacity for efficiently binding with heavy metals. Biosorption equilibrium time was achieved at 300 min for both ions, fitting well with a pseudo second-order kinetic model and Langmuir isotherm model. These data suggest that the biosorption process occurred chemically in monolayer. The column C presented an exhaust volume of 1200 mL for Ni(II) and 1080 for Cd(II) and removal of 98% and 99% of removal for Ni(II) and Cd(II), respectively. In summary, PAB demonstrates substantial potential as a biosorbent for effectively removing heavy metals, making a valuable contribution to the valorization of this co-product and the mitigation of environmental pollution.
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Affiliation(s)
- Talita L S Nascimento
- Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
| | - Karine F S Oliveira
- Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
- Postgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
| | - Joemil O D Junior
- Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
| | - Alexandre S Pimenta
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte - UFRN, Macaíba, RN, 59280-000, Brazil
| | - Dulce M A Melo
- Postgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
- Postgraduate Program in Chemical, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
| | - Marcus A F Melo
- Chemical Engineering Department, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
| | - Renata M Braga
- Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil.
- Escola Agrícola de Jundiaí- UFRN, RN 160, Km 03, Distrito de Jundiaí, Macaíba, RN, 59280-000, Brazil.
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Börklü Budak T. Adsorption of Basic Yellow 28 and Basic Blue 3 Dyes from Aqueous Solution Using Silybum Marianum Stem as a Low-Cost Adsorbent. Molecules 2023; 28:6639. [PMID: 37764414 PMCID: PMC10536612 DOI: 10.3390/molecules28186639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
In the present study, the ability of an adsorbent (SLM Stem) obtained from the stem of the Silybum Marianum plant to treat wastewater containing the cationic dyes basic blue 3 (BB3) and basic yellow 28 (BY28) from aqueous solutions was investigated using a batch method. Then, the SLM Stem (SLM Stem-Natural) adsorbent was carbonized at different temperatures (200-900 °C) and the removal capacity of the products obtained for both dyes was examined again. The investigation continued with the product carbonized at 800 °C (SLM Stem-800 °C), the adsorbent with the highest removal capacity. The dyestuff removal studies were continued with the SLM Stem-Natural and SLM Stem-800 °C adsorbents because they had the highest removal values. The surface properties of these two adsorbents were investigated using IR, SEM, and XRD measurements. It was determined that the SLM Stem-Natural has mainly non-porous material, and the SLM Stem-800 °C has a microporous structure. The optimal values for various parameters, including adsorbent amount, initial dye solution concentration, contact time, temperature, pH, and agitation speed, were investigated for BY28 dye and were 0.05 g, 15 mg/L, 30 min, 40 °C, pH 6 and 100 rpm when SLM Stem-Natural adsorbent was used and, 0.15 g, 30 mg/L, 30 min, 40 °C, pH 10, and 150 rpm when SLM Stem-800 °C adsorbent was used. For BB3 dye, optimal parameter values of 0.20 g, 10 mg/L, 30 min, 25 °C, pH 7, and 100 rpm were obtained when SLM Stem-Natural adsorbent was used and 0.15 g, 15 mg/L, 40 min, 40 °C, pH 10, and 100 rpm when SLM Stem-800 °C adsorbent was used. The Langmuir isotherm described the adsorption process best, with a value of r2 = 0.9987. When SLM Stem-800 °C adsorbent was used for BY28 dye at 25 °C, the highest qm value in the Langmuir isotherm was 271.73 mg/g. When the study was repeated with actual water samples under optimum conditions, the highest removal for the BY28 dye was 99.9% in tap water with the SLM Stem-800 °C adsorbent. Furthermore, the reuse study showed the adsorbent's efficiency even after three repetitions.
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Affiliation(s)
- Türkan Börklü Budak
- Department of Chemistry, Faculty of Art and Science, Yildiz Technical University, 34220 Istanbul, Turkey
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Anand S, Singh A, Kumar V. Recent advancements in cadmium-microbe interactive relations and their application for environmental remediation: a mechanistic overview. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:17009-17038. [PMID: 36622611 DOI: 10.1007/s11356-022-25065-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/26/2022] [Indexed: 01/10/2023]
Abstract
The toxic and persistent nature of cadmium (Cd) in the environment has become a matter of concern with its drastic increase in the concentrations over past few decades. Among the various techniques, the microbial remediation has been accepted as an effective decontamination tool for environmental applications, which is sustainable over a period of time. The Cd decontamination potential of the microbes depends on various internal and external factors that play a crucial role in selection of the microbes for application in a particular environment. Thus, it is important to understand the role of these factors for optimal application of the microbes. This study provides an insight into the mechanisms involved between the microbes and the environmental Cd. The study also briefly reviews the mathematical models that have been used to predict the remediation potential of the microbes and the kinetics involved during the process. A critical analysis of the recent advancements in the techniques for use of bacteria, fungi, and algal cells to remove Cd has been also presented in the manuscript.
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Affiliation(s)
- Saumya Anand
- Laboratory of Applied Microbiology, Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India, 826004
| | - Ankur Singh
- Laboratory of Applied Microbiology, Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India, 826004
| | - Vipin Kumar
- Laboratory of Applied Microbiology, Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India, 826004.
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Moridi H, Gh AB. Sodium alginate/polyvinyl pyrrolidone/zinc oxide @silica Schiff-base nanofiber membrane for single and binary removal of copper and nickel cations from aqueous medium. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04834-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Do Red Seaweed Nanoparticles Enhance Bioremediation Capacity of Toxic Dyes from Aqueous Solution? Gels 2022; 8:gels8050310. [PMID: 35621608 PMCID: PMC9141480 DOI: 10.3390/gels8050310] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/09/2022] [Accepted: 05/13/2022] [Indexed: 12/18/2022] Open
Abstract
Based on their functional groups, the use of various seaweed forms in phytoremediation has recently gained significant eco-friendly importance. The objective of this study was to determine whether a novel, sustainable, and ecologically acceptable adsorbent could be employed to remove toxic textile dye (Ismate Violet 2R (IV2R)) from an aqueous solution. The low-cost adsorbent was prepared from the nanoparticles form of the native red seaweed species, Pterocladia capillacea. Before and after the adsorption procedure, comprehensive characterization experiments on the bio-adsorbent were carried out, including BET, SEM, FTIR, UV, and dynamic light scattering (DLS) examination. The adsorption performance of the prepared nano-Pterocladia capillacea was optimized by adjusting operating parameters such as the initial dye concentration of 60 mg L−1, pH of 2, and contact time of 15 min, all of which were obtained by batch experiments in the lab. At the optimum conditions, the prepared adsorbent had maximum removal effectiveness of 87.2%. Most typical kinetics and isotherm models were used to test the experimental results. The equilibrium data fit well with the Langmuir isotherm model, with comparatively higher R2 values and fewer standard errors, while the pseudo-second-order kinetic model fits better with a decent correlation coefficient. Thermodynamic parameters revealed that the sorption process on nano-alga was exothermic and spontaneous.
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Hasani N, Selimi T, Mele A, Thaçi V, Halili J, Berisha A, Sadiku M. Theoretical, Equilibrium, Kinetics and Thermodynamic Investigations of Methylene Blue Adsorption onto Lignite Coal. Molecules 2022; 27:molecules27061856. [PMID: 35335220 PMCID: PMC8950461 DOI: 10.3390/molecules27061856] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/01/2022] [Accepted: 03/08/2022] [Indexed: 12/10/2022] Open
Abstract
The interaction of methylene blue (MB) dye with natural coal (collected from coal landfills of the Kosovo Energy Corporation) in aqueous solutions was studied using adsorption, kinetics, and thermodynamic data, and Monte Carlo (MC) calculations. In a batch procedure, the effects of contact duration, initial MB concentration, pH, and solution temperature on the adsorption process were examined. The Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich (D–R) isotherms were used to examine the equilibrium adsorption data. The equilibrium data fit well to the Freundlich and Langmuir adsorption isotherm models; however, the Freundlich model suited the adsorption data to a slightly better extent than the Langmuir model. The kinetics experimental data was fitted using pseudo-first-order, first-order, pseudo-second-order, second-order, Elvoich equation, and diffusion models. The pseudo-second-order rate model manifested a superlative fit to the experimental data, while the adsorption of MB onto coal is regulated by both liquid film and intraparticle diffusions at the same time. Thermodynamic parameters, such as Gibbs free energy (ΔG0), enthalpy (ΔH0), and entropy (ΔS0) were calculated. The adsorption of MB was confirmed to be spontaneous and endothermic. The theoretical results were in agreement with the experimental ones.
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Affiliation(s)
- Naim Hasani
- Department of Hydrotechnics, Faculty Civil Engineering, University of Prishtina, 10000 Prishtina, Kosovo;
| | - Teuta Selimi
- Department of Chemistry, Faculty of Natural and Mathematics Science, University of Prishtina, 10000 Prishtina, Kosovo; (T.S.); (V.T.); (J.H.); (A.B.)
| | - Altin Mele
- Department of Chemistry, Faculty of Natural Science, University of Tirana, 1000 Tirana, Albania;
| | - Veprim Thaçi
- Department of Chemistry, Faculty of Natural and Mathematics Science, University of Prishtina, 10000 Prishtina, Kosovo; (T.S.); (V.T.); (J.H.); (A.B.)
| | - Jeton Halili
- Department of Chemistry, Faculty of Natural and Mathematics Science, University of Prishtina, 10000 Prishtina, Kosovo; (T.S.); (V.T.); (J.H.); (A.B.)
| | - Avni Berisha
- Department of Chemistry, Faculty of Natural and Mathematics Science, University of Prishtina, 10000 Prishtina, Kosovo; (T.S.); (V.T.); (J.H.); (A.B.)
| | - Makfire Sadiku
- Department of Chemistry, Faculty of Natural and Mathematics Science, University of Prishtina, 10000 Prishtina, Kosovo; (T.S.); (V.T.); (J.H.); (A.B.)
- Correspondence:
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Ratnasari A, Syafiuddin A, Zaidi NS, Hong Kueh AB, Hadibarata T, Prastyo DD, Ravikumar R, Sathishkumar P. Bioremediation of micropollutants using living and non-living algae - Current perspectives and challenges. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118474. [PMID: 34763013 DOI: 10.1016/j.envpol.2021.118474] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 10/17/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
The emergence and continual accumulation of industrial micropollutants such as dyes, heavy metals, organic matters, and pharmaceutical active compounds (PhACs) in the ecosystem pose an alarming hazard to human health and the general wellbeing of global flora and fauna. To offer eco-friendly solutions, living and non-living algae have lately been identified and broadly practiced as promising agents in the bioremediation of micropollutants. The approach is promoted by recent findings seeing better removal performance, higher efficiency, surface area, and binding affinity of algae in various remediation events compared to bacteria and fungi. To give a proper and significant insight into this technology, this paper comprehensively reviews its current applications, removal mechanisms, comparative efficacies, as well as future outlooks and recommendations. In conducting the review, the secondary data of micropollutants removal have been gathered from numerous sources, from which their removal performances are analyzed and presented in terms of strengths, weaknesses, opportunities, and threats (SWOT), to specifically examine their suitability for selected micropollutants remediation. Based on kinetic, isotherm, thermodynamic, and SWOT analysis, non-living algae are generally more suitable for dyes and heavy metals removal, meanwhile living algae are appropriate for removal of organic matters and PhACs. Moreover, parametric effects on micropollutants removal are evaluated, highlighting that pH is critical for biodegradation activity. For selective pollutants, living and non-living algae show recommendable prospects as agents for the efficient cleaning of industrial wastewaters while awaiting further supporting discoveries in encouraging technology assurance and extensive applications.
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Affiliation(s)
- Anisa Ratnasari
- School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia
| | - Achmad Syafiuddin
- Department of Public Health, Faculty of Health, Universitas Nahdlatul Ulama Surabaya, 60237, Surabaya, East Java, Indonesia
| | - Nur Syamimi Zaidi
- School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia
| | - Ahmad Beng Hong Kueh
- Department of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia; UNIMAS Water Centre (UWC), Faculty of Engineering, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Tony Hadibarata
- Department of Environmental Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia
| | - Dedy Dwi Prastyo
- Department of Statistics, Institut Teknologi Sepuluh Nopember, 60111, Surabaya, Indonesia
| | - Rajagounder Ravikumar
- Department of Physical Sciences and Information Technology, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
| | - Palanivel Sathishkumar
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou, 510006, PR China.
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Li J, Zhang Y, Zhou Y, Fang F, Li X. Tailored metal-organic frameworks facilitate the simultaneously high-efficient sorption of UO 22+ and ReO 4- in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149468. [PMID: 34371410 DOI: 10.1016/j.scitotenv.2021.149468] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/31/2021] [Accepted: 07/31/2021] [Indexed: 06/13/2023]
Abstract
The simultaneously efficient extraction of radioactive metal cations and anions from radioactive waste is of great interest for the proper disposal of spent fuel and environmental protection. Modifying metal-organic frameworks (MOFs) into multifunctional materials with controllable and desired properties is an efficient strategy for broadening their practical applications. Herein, poly(ethyleneimine) (PEI) tailored MIL-101(Cr) (MILP) was obtained through an easy operation and low-cost strategy and was utilized to simultaneously extract uranium (UO22+) and rhenium (ReO4-) from water. The effects of PEI coating amounts, system pH, contact time, initial UO22+/ReO4- concentrations, ionic strength, as well as interfering ions were studied to evaluate the sorption performance of MILP composites. The maximum sorption capacity was 416.67 mg/g for UO22+ at pH 5.5 and 434.78 mg/g for ReO4- at pH 3.5, levels that are superior to those of most adsorbents. The sorption of UO22+/ReO4- occurred in a pH-dependent, spontaneous and endothermic manner, which showed preferable modeling by the pseudo-second-order (PSO) kinetic equation and Freundlich isotherm equation. The adsorption of ReO4- was inhibited by the coexistence of UO22+ and high ion strength. Batch experiments and X-ray photoelectron spectroscopy (XPS) results indicate that UO22+/ReO4- sorption was driven by the abundant amino groups and unsaturated metal sites in the MILP-3 composites. MILP-3 also showed excellent recycling performance and maintained high sorption capacities for UO22+/ReO4- in different simulated water samples. This study shows that MILP composites can effectively extract radioactive metal cations and anions from water, and lays a foundation for designing an excellent new category of candidates with versatile functions for wastewater management.
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Affiliation(s)
- Jie Li
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China; Hefei Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, PR China
| | - Yan Zhang
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China; Hefei Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, PR China
| | - Yi Zhou
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China; Hefei Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, PR China
| | - Fei Fang
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China; Hefei Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, PR China
| | - Xuede Li
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China; Hefei Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, PR China.
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Removal of Toxic Heavy Metals from Contaminated Aqueous Solutions Using Seaweeds: A Review. SUSTAINABILITY 2021. [DOI: 10.3390/su132112311] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Heavy metal contamination affects lives with concomitant environmental pollution, and seaweed has emerged as a remedy with the ability to save the ecosystem, due to its eco-friendliness, affordability, availability, and effective metal ion removal rate. Heavy metals are intrinsic toxicants that are known to induce damage to multiple organs, especially when subjected to excess exposure. With respect to these growing concerns, this review presents the preferred sorption material among the many natural sorption materials. The use of seaweeds to treat contaminated solutions has demonstrated outstanding results when compared to other materials. The sorption of metal ions using dead seaweed biomass offers a comparative advantage over other natural sorption materials. This article summarizes the impact of heavy metals on the environment, and why dead seaweed biomass is regarded as the leading remediation material among the available materials. This article also showcases the biosorption mechanism of dead seaweed biomass and its effectiveness as a useful, cheap, and affordable bioremediation material.
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Getachew D, Suresh A, Kamaraj M, Ayele A, Benor S. Removal of malachite green and mixed dyes from aqueous and textile effluents using acclimatized and sonicated microalgal ( Oscillatoria sp.) biosorbents and process optimization using the response surface methodology. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:881-892. [PMID: 34618651 DOI: 10.1080/15226514.2021.1984387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Synthetic dyes are toxic and their release into the environment harms the ecosystem. Phycoremediation of synthetic dyes with acclimatized and native species has advantages over other methods. In this study, textile effluent-acclimatized microalgae species of Oscillatoria were grown in Bold's Basal Medium (BBM), dried, powdered using sonication, and optimized the removal malachite green (MG), using the response surface methodology (RSM). The effects of algal biosorbent concentration (AC), pH, and contact time (CT) were studied with 1 g L-1 MG in an aqueous solution, and the interaction model exerted significance (p < 0.001). The removal of MG was higher at alkaline pH (90% at pH 8.5) than at acidic pH (70% at pH 4). Under the optimized conditions of 1.2 g L-1 AC, 8.5 pH, and 30 min CT, the MG removal was documented at 90.8% with the biosorption capacity of 757 mg g-1. Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) analysis revealed the occurrence of different electronegative functional groups, aromatic vibrations, and the crystalline nature of the biosorbent. The algal sorbent exhibited a good performance of 80.9% for the removal of the crude color in real textile effluents. This microalgal sorbent is an attractive option for promoting large-scale applications.
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Affiliation(s)
- Deribe Getachew
- Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Arumuganainar Suresh
- Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
- Department of Biological Sciences and BioC technology, Institute of Advanced Research - The University for Innovation, Gandhinagar, India
- Waste Management Unit, Suguna Foods Private Limited, Udumalaipettai, India
| | - Murugesan Kamaraj
- Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Abate Ayele
- Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Solomon Benor
- Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
- Office of Science and Research Affair Director General, Ministry of Science and Higher Education, Addis Ababa, Ethiopia
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Saket P, Kashyap M, Bala K, Joshi A. Microalgae and bio-polymeric adsorbents: an integrative approach giving new directions to wastewater treatment. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:536-556. [PMID: 34340616 DOI: 10.1080/15226514.2021.1952925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This review analyses the account of biological (microalgae) and synthetic (bio-polymeric adsorbents) elements to compass the treatment efficiencies of various water pollutants and mechanisms behind them. While considering pollutant removal, both techniques have their own merits and demerits. Microalgal-based methods have been dominantly used as a biological method for pollutant removal. The main limitations of microalgal methods are capacity, scale, dependence on variables of environment and duration of the process. Biopolymers on the other hand are naturally produced, abundant in nature, environmentally safe and biocompatible with cells and many times biodegradable. Algal immobilization in biopolymers has promoted the reuse of cells for further treatment and protected cells from toxic environment monitoring and controlling the external factors like pH, temperature and salinity can promote the removal process while working with the mentioned technologies. In this review, a mechanistic view of both these techniques along with integrated approaches emphasizing on their loopholes and possibilities of improvement in these techniques is represented. In addition to these, the review also discusses the post-treatment effect on algal cells which are specifically dependent on pollutant type and their concentration. All these insights will aid in developing integrated solutions to improve removal efficiencies in an environmentally safe and cost-effective manner.Novelty statement The main objective of this review is to thoroughly understand the role of micro-algal cells and synthetic adsorbents individually as well as their integrative effect in the removal of pollutants from wastewater. Many reviews have been published containing information related to either removal mechanism by algae or synthetic adsorbents. While in this review we have discussed the agents, algae and synthetic adsorbents along with their limitations and explained how these limitations can be overcome with the integration of both the moieties together in process of immobilization. We have covered both the analytical and mechanistic parts of these technologies. Along with this, the post-treatment effects on algae have been discussed which can give us a critical understanding of algal response to pollutants and by-products obtained after treatment. This review contains three different sections, their importance and also explained how these technologies can be improved in the future aspects.
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Affiliation(s)
- Palak Saket
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
| | - Mrinal Kashyap
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
| | - Kiran Bala
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
| | - Abhijeet Joshi
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
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Li R, Zhang T, Zhong H, Song W, Zhou Y, Yin X. Bioadsorbents from algae residues for heavy metal ions adsorption: chemical modification, adsorption behaviour and mechanism. ENVIRONMENTAL TECHNOLOGY 2021; 42:3132-3143. [PMID: 31996100 DOI: 10.1080/09593330.2020.1723711] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 01/24/2020] [Indexed: 06/10/2023]
Abstract
Biosorption is an emerging technology for the removal of heavy metals from industrial wastewater by natural or modified biomass. In this study, we proposed a novel protocol for making full use of seaweeds. Brown seaweed Sargassum carpophyllum residue (SCR) and green seaweed Caulerpa lentillifera residue (CLR) were obtained after extraction of the bioactive polysaccharides. The obtained residues were further chemical modified by butanedioic anhydride to obtained respective carboxylated product, named CSCR and CCLR. According to the titration results, CSCR and CCLR contained 2.77 and 2.12 mmol/g of carboxyl group. After modification, the adsorption capacity for metal ions increased by 3-6 times. The adsorption capacity of CSCR for Cu2+, Pb2+, Cd2+ and Mn2+ was 52.37, 107.11, 85.62, and 43.52 mg/g, and that of CCLR was 78.10, 108.80, 87.30 and 57.80 mg/g, respectively. The adsorption was well described by the pseudo-second-order kinetic model and Langmuir adsorption isotherm equation.
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Affiliation(s)
- Rongguo Li
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, People's Republic of China
| | - Tingting Zhang
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, People's Republic of China
| | - Haifeng Zhong
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, People's Republic of China
| | - Weikang Song
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, People's Republic of China
| | - You Zhou
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, People's Republic of China
| | - Xueqiong Yin
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, People's Republic of China
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Saravanan A, Kumar PS, Jeevanantham S, Karishma S, Yaashikaa PR. Modeling analysis on the effective elimination of toxic pollutant from aquatic environment using pyrolysis assisted palmyra palm male inflorescence. ENVIRONMENTAL RESEARCH 2021; 197:111146. [PMID: 33865816 DOI: 10.1016/j.envres.2021.111146] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
In this study adsorption of Cd(II) ions using the pyrolysis assisted Palmyra palm male inflorescence (PAPMI) was systematically examined. A batch adsorption study was carried out to determine the type of interactions and removal efficiency which is based on the surface property of PAPMI. The diverse parameters which affect the adsorption performance of PAPMI for Cd(II) ion removal were optimized: biosorbent dose - 1.25 g/L, pH - 6.0, temperature - 303 K, initial cadmium ions concentration - 50 mg/L and contact time - 40 min. Pseudo-first order kinetics and Langmuir isotherm models were more suitable to describe the adsorption kinetics and isotherm, respectively. Therefore, modeling studies portrayed the present Cd(II) ions adsorption on PAPMI as monolayer adsorption occurs on the homogeneous surface and follows the physisorption mechanism. The maximum adsorption capacity of the synthesized PAPMI was examined as 233.2 mg/g from the equilibrium isotherm investigation. Based on the calculated thermodynamic parameters (ΔGo, ΔHo and ΔSo) values, the present Cd(II) ions adsorption on PAPMI was explicated as feasible, and exothermic. The outcome proposed that Palmyra palm male inflorescence can be a suitable adsorbent for expulsion of Cd(II) ions from aqueous environment. In the interim, the utilization of pyrolysis assisted is a viable and fast uptake innovation for the removal of heavy metals from water environment.
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Affiliation(s)
- A Saravanan
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India.
| | - S Jeevanantham
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, India
| | - S Karishma
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, India
| | - P R Yaashikaa
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, India
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15
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Alwared AI, Al-Musawi TJ, Muhaisn LF, Mohammed AA. The biosorption of reactive red dye onto orange peel waste: a study on the isotherm and kinetic processes and sensitivity analysis using the artificial neural network approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:2848-2859. [PMID: 32895791 DOI: 10.1007/s11356-020-10613-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
The agricultural waste of orange peels (OPs) was utilized as a cheap biosorbent and then tested for its ability to treat the reactive red (RR) dye wastewater. Several experiments were done to get the equilibrium isotherm and kinetic-relevant data. In addition, several experimental factors such as solution pH, temperature, contact time, and initial RR dye concentration were studied, in light of their impact on the biosorption process. The utilized isotherm and kinetic models were evaluated by using the chi-square test and coefficient of determination parameters for their representation of real data. In addition, the obtained data of their biosorption capacities, at different conditions, were modeled by the artificial neural network (ANN) approach. The results of the isotherm study revealed that the experimental data can be best accounted by both the Langmuir and Temkin models, demonstrating that the RR molecules were sorbed to two or more different types of biosorption sites of OP. The kinetic study for determining the characteristics of the rate of diffusion demonstrated that the intraparticle diffusion process was not the sole rate-limiting step in the biosorption of the RR dye-OP couple. Furthermore, the biosorption process was chemisorption in nature, as the pseudo-second-order reaction proved to be the best representative model for the kinetic data. The outcome of modeling also assumed that using the ANN tool was useful to reproduce the data again and foretell the manner in which biosorption behaved. According to the results of the Langmuir model, it was found that the maximum OP uptake for the biosorption of the RR dye was up to 82 mg/g, observed at optimized values of the experimental parameters. Such prior results highlight that OP is an effective agent of biosorption in the elimination of RR dyes from polluted solutions, moreover, in a cost-effective manner.
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Affiliation(s)
- Abeer I Alwared
- Environmental Engineering Department, Baghdad University, Baghdad, Iraq
| | - Tariq J Al-Musawi
- Department of Civil Engineering, Faculty of Engineering, Isra University, Amman, Jordan.
| | - Laheib F Muhaisn
- Environmental Engineering Department, Al-Mustansiriya University, Baghdad, Iraq
| | - Ahmed A Mohammed
- Environmental Engineering Department, Baghdad University, Baghdad, Iraq
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16
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Goyal P, Tiwary CS, Misra SK. Ion exchange based approach for rapid and selective Pb(II) removal using iron oxide decorated metal organic framework hybrid. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 277:111469. [PMID: 33049615 DOI: 10.1016/j.jenvman.2020.111469] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/13/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
Polyacrylic acid capped Fe3O4 - Cu-MOF (i-MOF) hybrid was prepared for rapid and selective lead removal, with 93% removal efficiency, exceptional selectivity, and adsorption capacity of 610 mg/g and 91% of i-MOF hybrid could be easily separated from the contaminated water using magnetic separation. The adsorption process followed a pseudo-second-order model and the adsorption efficiency decreased from 93% to 83% on raising the temperature from 25 °C to 40 °C. The change in equilibrium adsorption capacity with respect to equilibrium adsorbate concentration followed the Langmuir isotherm model. i-MOF had a high selectivity coefficient and removal efficiency for lead ions even when exposed simultaneously with naturally abundant cations (Na(I), Ca(II), Mg(II)). Release of Cu(II) ions from the i-MOF after Pb(II) removal suggested suggested ion-exchange to be the dominant removal mechanism. This new finding for Pb(II) removal with excellent adsorption performance using i-MOF through ion exchange based approach is a viable option for treating lead contaminated water.
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Affiliation(s)
- Prateek Goyal
- Materials Science and Engineering, Indian Institute of Technology Gandhinagar, Gujarat, India
| | - Chandra Shekhar Tiwary
- Materials Science & Metallurgical Engineering, Indian Institute of Technology Kharagpur, India
| | - Superb K Misra
- Materials Science and Engineering, Indian Institute of Technology Gandhinagar, Gujarat, India; Mechnanical Engineering, Indian Institute of Technology Gandhinagar, Gujarat, India.
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17
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Tamjidi S, Ameri A. A review of the application of sea material shells as low cost and effective bio-adsorbent for removal of heavy metals from wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:31105-31119. [PMID: 32533472 DOI: 10.1007/s11356-020-09655-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
The pollution caused by heavy metal ions in industrial wastewater is of a great concern. Applying effective and low-cost methods is an urgent need for treatment of polluted water and aqueous solutions. Biosorption have received the most attention among the various methods. It has become an alternative technique to conventional technologies due to low cost, simple operation and treatment for heavy metal recovery, and high selectivity. In recent years, sea material shells have been applied as one of the most cost-effective bio-adsorbents due to their special properties. They are environmentally friendly, low cost, and easy to access and have high adsorption capacity. The purpose of this review is to present the application of oyster shell, snail shell, and shrimp shell as low-cost and effective biosorbents for removal of noxious heavy metals from aqueous solutions. In addition, heavy metals, their sources, and ways to remediate them from waste streams and various factors affecting the biosorption process with sea materials shells are also reviewed. Moreover, a brief description and literature review of the equilibrium, kinetic, and thermodynamic behaviors of the heavy metal ion adsorption process on sea material shells have been studied. Finally, further applications of sea materials shell for waste effluents treatment are specially focused.
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Affiliation(s)
- Sajad Tamjidi
- Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Abolhasan Ameri
- Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran.
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Sunsandee N, Ramakul P, Phatanasri S, Pancharoen U. Biosorption of dicloxacillin from pharmaceutical waste water using tannin from Indian almond leaf: Kinetic and equilibrium studies. ACTA ACUST UNITED AC 2020; 27:e00488. [PMID: 32577411 PMCID: PMC7305391 DOI: 10.1016/j.btre.2020.e00488] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 05/19/2020] [Accepted: 06/08/2020] [Indexed: 01/16/2023]
Abstract
The maximum adsorption capacity was 86.93 %. Experimental data were in agreement with pseudo-second-order kinetics. Experimental data were followed Langmuir isotherm model. Biosorption of dicloxacilin onto T. catappa L. biomass is possible, spontaneous and exothermic process.
This study focused on the use of Indian almond leaf biomass, a local plant widely found in Thailand, on removal of dicloxacillin from pharmaceutical waste water by biosorption. The biosorption characteristics of dicloxacillin were investigated in terms of equilibrium, kinetics and thermodynamics. Optimum biosorption conditions were determined from pH, initial dicloxacillin concentration, biomass dosage, contact time, and temperature. The maximum adsorption capacity was 86.93 % (pH 6.0, 0.1 g/L biomass, dicloxacillin concentration 20 mg/L, contact time 24 h, temperature 283.15 K). The thermodynamic parameters (298.15 K), free energy change, enthalpy change and entropy change were -3475.79 J/mol, −25.36 kJ/mol, and −73.40 J/mol/K, respectively. The best interpretation for the experimental data was given by the Langmuir isotherm with correlation coefficient of 0.965. The results were found to tie in well with pseudo-second-order kinetics. Considering the cost-effectiveness, Indian almond leaf biomass is considered to be suitable to remove dicloxacillin from pharmaceutical waste water.
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Affiliation(s)
- Niti Sunsandee
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Prakorn Ramakul
- Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Suphot Phatanasri
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Ura Pancharoen
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
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19
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Libatique MJH, Lee MC, Yeh HY, Jhang FJ. Total and inorganic arsenic biosorption by Sarcodia suiae (Rhodophyta), as affected by controlled environmental conditions. CHEMOSPHERE 2020; 248:126084. [PMID: 32059333 DOI: 10.1016/j.chemosphere.2020.126084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/21/2020] [Accepted: 01/31/2020] [Indexed: 06/10/2023]
Abstract
Temperature, light intensity (LI), adsorbent source and concentrations are key external factors affecting algal metabolism and thus metal-accumulation mechanisms. In this study, the alga Sarcodia suiae was exposed individually to a range of temperature (15, 20, and 25 °C), and LI (30, 55, and 80 μmol photons m-2 s-1) at initial arsenate [As(V)] concentration (iconc: 0, 62.5, 125, 250, and 500 μg L-1) conditions, to investigate the variations of total arsenic (TAs) and inorganic arsenic (iAs) accumulation mechanisms in the algal body. Temperature significantly affected TAs and arsenite [As(III)] production and maximum absorption were obtained at 15 °C, which was significantly stimulated by increasing iconc. However, the temperature did not affect As(V) production. LI had no significant effect on TAs or iAs production, although maximum absorption was estimated in 80 μmol photons m-2 s-1. The iAs component of TAs was much greater in the temperature experiment particularly under 250-500 μg L-1iconc than in the LI experiment, is witnessed. Overall, temperature and iconc strongly affected As accumulation. The predominant iAs produced was As(III), regardless of temperature or LI, suggesting that the alga favored As(III) biosorption. Also, visible effects on the morphology of this alga were adverse with increased concentration and environmental factors did affect the difference somewhat. Our results contribute to improving our understanding of the effects of the tested factors on As cycling, which is necessary for maximizing biosorption of algae if utilized for bioremediation studies as well as in the wastewater treatment implementation approach in the environment.
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Affiliation(s)
- Mary Joy Halog Libatique
- Department of Aquaculture, National Taiwan Ocean University, Keelung City, 20224, Taiwan; Provincial Institute of Fisheries, Isabela State University Roxas, Isabela, 3320, Philippines.
| | - Meng-Chou Lee
- Department of Aquaculture, National Taiwan Ocean University, Keelung City, 20224, Taiwan; Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung City, 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, 20224, Taiwan
| | - Han-Yang Yeh
- Department of Aquaculture, National Taiwan Ocean University, Keelung City, 20224, Taiwan
| | - Fu-Jie Jhang
- Department of Aquaculture, National Taiwan Ocean University, Keelung City, 20224, Taiwan
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Abdelbassit MS, Popoola SA, Saleh TA, Abdallah HH, Al-Saadi AA, Alhooshani KR. DFT and Kinetic Evaluation of Chloromethane Removal Using Cost-Effective Activated Carbon. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-04458-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Lin Z, Li J, Luan Y, Dai W. Application of algae for heavy metal adsorption: A 20-year meta-analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110089. [PMID: 31896472 DOI: 10.1016/j.ecoenv.2019.110089] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/22/2019] [Accepted: 12/11/2019] [Indexed: 06/10/2023]
Abstract
The use of algae to adsorb heavy metals is an efficient and environmentally friendly treatment for contaminated water and has attracted widespread research attention. In this study, a meta-analysis of the heavy metal adsorption capacity of algae from five different phyla and the factors influencing these capacities was conducted. Phaeophyta was found to have a high heavy metal adsorption capacity, whereas Bacillariophyta had a relatively low adsorption capacity; Chlorophyta, Rhodophyta, and Cyanophyta had moderate adsorption capacities. Non-living algae were more effective in practical applications than living algae were. Algal biomass had a relatively high adsorption efficiency of 1-10 g/L, which did not increase significantly when algal concentration increased. The algal adsorption efficiency for initial heavy metal concentrations of 10-100 mg/L was higher than for concentrations of greater than 100 mg/L. The results further show that algal adsorption of heavy metals reached a maximum capacity of 80-90% within 20 min. Heavy metal adsorption by algae was not temperature-dependent, and it was more effective in moderately to weakly acidic environments (pH = 4-7.5). Considering these aspects for practical applications, algae from some phyla can effectively be used for heavy metal biosorption in contaminated water.
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Affiliation(s)
- Zeyu Lin
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Jing Li
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Yaning Luan
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Wei Dai
- College of Forestry, Beijing Forestry University, Beijing, 100083, China.
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Batch Study of Cadmium Biosorption by Carbon Dioxide Enriched Aphanothece sp. Dried Biomass. WATER 2020. [DOI: 10.3390/w12010264] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The conventional method for cadmium removal in aqueous solutions (1–100 mg/L) is ineffective and inefficient. Therefore, a batch biosorption reactor using a local freshwater microalga (originating from an urban lake, namely, Situ Rawa Kalong-Depok) as dried biosorbent was tested. Biosorbent made from three kinds of cyanobacterium Aphanothece sp. cultivars (A0, A8, and A15) were used to eliminate cadmium (Cd2+) ions in aqueous solution (1–7 mg/L). The biosorbents were harvested from a photobioreactor system enriched with carbon dioxide gas of 0.04% (atmospheric), 8%, and 15% under continuous light illumination of about 5700–6000 lux for 14 d of cultivation. Produced dried biosorbents had Brunauer–Emmet–Teller (BET) surface area ranges of 0.571–1.846 m2/g. Biosorption of Cd2+ was pH and concentration dependent. Sorption was spontaneous (ΔG = −8.39 to −10.88 kJ/mol), exothermic (ΔH = −41.85 to −49.16 kJ/mol), and decreased randomness (ΔS = −0.102 to −0.126 kJ/mol. K) on the interface between solid and liquid phases when the process was completed. The kinetic sorption data fitted best to the pseudo-second-order model (k2 = 2.79 × 10−2, 3.96 × 10−2, and 4.54 × 10−2 g/mg.min). The dried biosorbents of A0, A8, and A15, after modeling with the Langmuir and Dubinin–Radushkevich isotherm models, indicated that cadmium binding occurred through chemisorption (qmax, D-R = 9.74 × 10−4, 4.79 × 10−3, and 9.12 × 10−3 mol/g and mean free energy of 8.45, 11.18, and 11.18 kJ/mol) on the monolayer and homogenous surface (qmax, Langmuir of 12.24, 36.90, and 60.24 mg/g). In addition, the results of SEM, EDX, and FTIR showed that there were at least nine functional groups that interacted with Cd2+ (led to bond formation) after biosorption through cation exchange mechanisms, and morphologically the surfaces changed after biosorption. Biosorbent A15 indicated the best resilient features over three cycles of sorption–desorption using 1 M HCl as the desorbing eluent. These biosorbents can be a potent and eco-friendly material for treating aqueous wastewater.
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Li J, Chang H, Li Y, Li Q, Shen K, Yi H, Zhang J. Synthesis and adsorption performance of La@ZIF-8 composite metal–organic frameworks. RSC Adv 2020; 10:3380-3390. [PMID: 35497730 PMCID: PMC9048937 DOI: 10.1039/c9ra10548d] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 01/04/2020] [Indexed: 12/31/2022] Open
Abstract
In this study, ZIF-8 with a rhombic dodecahedron structure was prepared by a hydrothermal method. Then La(OH)3, was successfully loaded onto the ZIF-8 by an immersion deposition method, to form a lanthanide-based metal–organic framework (La@ZIF-8) composites. The structure and properties of La@ZIF-8 were verified by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and zeta potential measurements. The optimum process conditions are discussed within the materials and methods. The effects of initial phosphorus concentration, dosage, pH and contact reaction time on the phosphorus removal performance of the nanomaterial were investigated. The results indicated that La@ZIF-8 exhibited an excellent adsorption capacity (147.63 mg g−1) and its phosphorus removal efficiency could reach as high as 99.7%. Experimental data were interpreted using different adsorption kinetic and isotherm models. The kinetic behavior conformed to the pseudo-second-order kinetic model, which indicated the chemisorption of phosphorus by La@ZIF-8. The adsorption behavior of phosphorus by La@ZIF-8 fitted well to the Langmuir isotherm model, suggesting a monolayer chemical adsorption process. The majority of the adsorbed phosphate could be desorbed by NaOH (2 mol L−1), and the removal efficiency of the recycled La@ZIF-8 reached 90%, even after the fifth cycle. The obtained results demonstrate the great application potential of the prepared La@ZIF-8 as a fascinating adsorbent for the removal of phosphate. In this study, La(OH)3 was successfully loaded on ZIF-8 by immersion deposition method, to form lanthanide-based metal–organic frameworks (La@ZIF-8) composites.![]()
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Affiliation(s)
- Junqi Li
- College of Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- P. R. China
| | - Haizhou Chang
- College of Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- P. R. China
| | - Yuhao Li
- College of Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- P. R. China
| | - Qiuping Li
- College of Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- P. R. China
| | - Kaiyuan Shen
- College of Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- P. R. China
| | - Han Yi
- College of Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- P. R. China
| | - Jiwei Zhang
- College of Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- P. R. China
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Alhooshani KR. Adsorption of chlorinated organic compounds from water with cerium oxide-activated carbon composite. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.04.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Kapahi M, Sachdeva S. Bioremediation Options for Heavy Metal Pollution. J Health Pollut 2019; 9:191203. [PMID: 31893164 PMCID: PMC6905138 DOI: 10.5696/2156-9614-9.24.191203] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 08/20/2019] [Indexed: 05/02/2023]
Abstract
BACKGROUND Rapid industrialization and anthropogenic activities such as the unmanaged use of agro-chemicals, fossil fuel burning and dumping of sewage sludge have caused soils and waterways to be severely contaminated with heavy metals. Heavy metals are non-biodegradable and persist in the environment. Hence, remediation is required to avoid heavy metal leaching or mobilization into environmental segments and to facilitate their extraction. OBJECTIVES The present work briefly outlines the environmental occurrence of heavy metals and strategies for using microorganisms for bioremediation processes as reported in the scientific literature. METHODS Databases were searched from different libraries, including Google Scholar, Medline and Scopus. Observations across studies were then compared with the standards for discharge of environmental pollutants. DISCUSSION Bioremediation employs microorganisms for removing heavy metals. Microorganisms have adopted different mechanisms for bioremediation. These mechanisms are unique in their specific requirements, advantages, and disadvantages, the success of which depends chiefly upon the kind of organisms and the contaminants involved in the process. CONCLUSIONS Heavy metal pollution creates environmental stress for human beings, plants, animals and other organisms. A complete understanding of the process and various alternatives for remediation at different steps is needed to ensure effective and economic processes. COMPETING INTERESTS The authors declare no competing financial interests.
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Affiliation(s)
- Meena Kapahi
- Department of Biotechnology, Manav Rachna International Institute of Research and Studies, Faridabad, India
- Department of Chemistry, Manav Rachna University, Faridabad, India
| | - Sarita Sachdeva
- Department of Biotechnology, Manav Rachna International Institute of Research and Studies, Faridabad, India
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Pakdel Mojdehi A, Pourafshari Chenar M, Namvar-Mahboub M, Eftekhari M. Development of PES/polyaniline-modified TiO2 adsorptive membrane for copper removal. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123931] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Mohammed AA, Najim AA, Al-Musawi TJ, Alwared AI. Adsorptive performance of a mixture of three nonliving algae classes for nickel remediation in synthesized wastewater. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2019; 17:529-538. [PMID: 32030131 PMCID: PMC6985309 DOI: 10.1007/s40201-019-00367-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 03/11/2019] [Indexed: 06/09/2023]
Abstract
PURPOSE The present study provided a comprehensive description regarding the application of a mixture of three nonliving classes of algae as a promising and inexpensive biosorbent for removing toxic nickel (Ni(II)) ions from the aqueous medium. METHODS The biosorption process was tested by varying several experimental parameters such as pH (2-8), contaminant concentration (20-300 mg/L), biosorbent content (0.2-2 g/100 mL), and temperature (20-40 °C). In addition, the competition effects of the presence of Pb(II), Cu(II), and Zn(II) ions on the Ni(II) removal efficiency was studied by varying their concentrations from 30 to 40 mg/L. RESULTS The microscopic analysis of algae demonstrated that the used biosorbent consisted mainly of Chrysophyta (80%), Chlorophyte (14%), and Cyanophyta (6%). Results demonstrated that these environmental parameters influenced the removal efficiency with a different degree and there was no stable effects rank at conditions under examination. FT-IR and SEM analysis revealed that the biosorbent surface consists of many strong and active groups of negative valences such as hydroxyl and carboxyl groups, thus exhibiting several morphological properties of interest. Further, it was found that the Temkin model best fitted the isotherm biosorption data. The kinetic study showed that the Ni(II) biosorption was rapid within first 20 min of reaction time, thereby following a pseudo-second-order model, which in turn demonstrated a chemisorption process of Ni(II) ions reaction with the biosorbent binding sites. Also, the thermodynamic study suggested that the biosorption process of Ni(II) onto algal biomass was a spontaneous and endothermic in nature. The maximum uptake of Ni(II) was 9.848 mg/g under optimized conditions and neutral environment. CONCLUSIONS Thus, this significant finding suggested a favorable and eco-friendly treatment mechanism for removal of Ni(II) ions from aqueous medium via biosorption onto the used mixture of nonliving algal biomass.
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Affiliation(s)
- Ahmed A. Mohammed
- Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
| | - Aya A. Najim
- Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
| | - Tariq J. Al-Musawi
- Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
| | - Abeer I. Alwared
- Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
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Huang W, Han S, Zhou Q, Li W, Xing W. Assessing interactions between environmental factors and aquatic toxicity: Influences of dissolved CO 2 and light on Cd toxicity in the aquatic macrophyte Potamogeton crispus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 212:247-258. [PMID: 31170659 DOI: 10.1016/j.aquatox.2019.05.005] [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: 03/29/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 06/09/2023]
Abstract
The objective of this study was to investigate the combined effects of varying dissolved CO2 concentration (ambient CO2, 3˜17 μmol L-1, elevated CO2, 48˜81 μmol L-1) and light intensity (high light, c. 150 μmol photon m-2 s-1, low light, c. 25 μmol photon m-2 s-1) on the bioaccumulation and phytotoxicity of cadmium (Cd) in a macrophyte Potamogeton crispus, under constant Cd exposure. The data confirmed that 100 μM Cd led to adverse changes in morphology, ultrastructure and biochemistry in P. crispus. The toxic effects depended strongly on CO2 concentration and light intensity: elevated CO2 and high light both increased Cd concentrations in P. crispus, and there was a significant interaction between the two factors. Compared to high light grown plants, the photochemical efficiency and chlorophyll content of low light grown P. crispus were much less affected and the MDA content was lower, when exposed to 100 μM Cd. In addition, an antioxidative response was observed with a significant increase in SOD, POD and GST activities, indicating that low light grown P. crispus are more protected against Cd toxicity. When compared with ambient CO2 concentrations, chlorophyll content, chlorophyll fluorescence, photosynthetic rate and starch content, as well as the activity of SOD and GST, were significantly enhanced in Cd treated P. crispus under elevated CO2. This suggests that elevated CO2 reduced Cd toxicity in P. crispus by increasing photosynthesis and enhancing the antioxidant system. Moreover, the statistical results showed that dissolved CO2 and light had additive effects on Cd toxicity in P. crispus, reflected by the physiological parameters of total chlorophyll content, SOD activity and MDA content, indicating that the combination of high CO2 and low light produced more protection against Cd toxicity than did the factors alone. Based on the results of this study, it appears clear that referring to a specific site in aquatic ecosystem, dissolved CO2 concentration and light availability should be considered when assessing and managing Cd impacts on aquatic plants.
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Affiliation(s)
- Wenmin Huang
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China
| | - Shijuan Han
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qin Zhou
- School of Resources and Environmental Science, Hubei University, Wuhan 430074, China
| | - Wei Li
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China.
| | - Wei Xing
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China.
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Zhang C, Lu J, Wu J. Adsorptive removal of polycyclic aromatic hydrocarbons by detritus of green tide algae deposited in coastal sediment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 670:320-327. [PMID: 30904645 DOI: 10.1016/j.scitotenv.2019.03.296] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 05/21/2023]
Abstract
Rare information is available on the adsorptive removal of polycyclic aromatic hydrocarbons (PAHs) in the presence of algal detritus deposited in the coastal sediment during the outbreak of the green tide. The adsorptive removal of typical PAHs by Ulva prolifera (U. prolifera) detritus was firstly investigated since the algal detritus was of great importance for the biogeochemical cycle of coastal contaminants. The results showed that equilibrium adsorptive capacities of naphthalene, phenanthrene and benzo[a] pyrene on the U. prolifera detritus were 1.27, 1.97, and 2.49 mg kg-1, respectively, at the initial concentration of 10 μg L-1. The in situ monitoring using laser confocal scanning microscopy confirmed the adsorptive removal of PAHs by U. prolifera detritus. The adsorption of these PAHs was highly pH-dependent. The increase in salinity led to the increase in naphthalene removal rate, while the salinity showed scarce influence on the removal of phenanthrene and benzo[a] pyrene. There was a good linear relationship (R2 ≥ 0.9892) between the removal efficiency of PAHs and the initial concentration of PAHs. Slow desorption kinetics and low desorption rate (<16%) indicated that the adsorptive removal of PAHs could be benign to the environment. These findings demonstrated that the occurrence of green tide could provide a new natural remediation approach for contamination of PAHs through the adsorptive removal by the detritus of green tidal algae deposited in the coastal sediment.
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Affiliation(s)
- Cui Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jian Lu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, PR China.
| | - Jun Wu
- School of Resources and Environmental Engineering, Ludong University, Yantai, Shandong 264025, PR China
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Ahmad A, Bhat AH, Buang A. Enhanced biosorption of transition metals by living Chlorella vulgaris immobilized in Ca-alginate beads. ENVIRONMENTAL TECHNOLOGY 2019; 40:1793-1809. [PMID: 29345546 DOI: 10.1080/09593330.2018.1430171] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 01/16/2018] [Indexed: 06/07/2023]
Abstract
In this study freely suspended and Ca-alginate immobilized C. vulgaris cells were used for the biosorption of Fe(II), Mn(II), and Zn(II) ions, from the aqueous solution. Experimental data showed that biosorption capacity of algal cells was strongly dependent on the operational condition such as pH, initial metal ions concentration, dosages, contact time and temperature. The maximum biosorption of Fe(II) 43.43, Mn(II) 40.98 and Zn(II) 37.43 mg/g was achieved with Ca-alginate immobilized algal cells at optimum pH of 6.0, algal cells dosage 0.6 g/L, and contact time of 450 min at room temperature. The biosorption efficiency of freely suspended and immobilized C. vulgaris cells for heavy metals removal from the industrial wastewater was validated. Modeling of biosorption kinetics showed good agreements with pseudo-second-order. Langmuir and D-R isotherm models exhibited the best fit of experimental data. The thermodynamic parameters (ΔG°, ΔH°, and ΔS°) revealed that the biosorption of considered metal ions was feasible, spontaneous and exothermic at 25-45°C. The SEM showed porous morphology which greatly helps in the biosorption of heavy metals. The Fourier transform infrared spectrophotometer (FTIR) and X-rays Photon Spectroscopy (XPS) data spectra indicated that the functional groups predominately involved in the biosorption were C-N, -OH, COO-, -CH, C=C, C=S and -C-. These results shows that immobilized algal cells in alginate beads could potentially enhance the biosorption of considered metal ions than freely suspended cells. Furthermore, the biosorbent has significantly removed heavy metals from industrial wastewater at the optimized condition.
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Affiliation(s)
- Ashfaq Ahmad
- a Department of Chemical Engineering , Universiti Teknologi PETRONAS , Seri Iskandar , Perak , Malaysia
| | - A H Bhat
- b Department of Fundamental and Applied Sciences , Universiti Teknologi PETRONAS , Seri Iskandar , Perak , Malaysia
| | - Azizul Buang
- a Department of Chemical Engineering , Universiti Teknologi PETRONAS , Seri Iskandar , Perak , Malaysia
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Li Y, Huang S, Wei Y, Liu X, Zhang M, Jin Z, Wang H, Qu J. Two physical processes enhanced the performance of Auricularia auricula dreg in Cd(II) adsorption: composting and pyrolysis. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 79:1511-1526. [PMID: 31169509 DOI: 10.2166/wst.2019.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study aims to discover the impact of composting and pyrolysis on the adsorption performance of Auricularia auricula dreg (AAD) for Cd(II) in aqueous solution. Auricularia auricula dreg (AAD), Auricularia auricula dreg biochar (AADB) and Auricularia auricula dreg compost (AADC) were used to remove Cd(II) from aqueous solution, and their adsorption conditions and mechanisms were compared. The adsorption quantity of three adsorbents reached the maximum (AAD: 80.0 mg/g, AADB: 91.7 mg/g, AADC: 93.5 mg/g) under same conditions (adsorbent dosage of 1 g/L, pH 5.0, biosorption temperature of 25 °C, and biosorption time of 120 min). All Cd(II) biosorption processes onto three adsorbents complied with the Langmuir isotherm model and the pseudo-second-order kinetic equation, and spontaneously occurred in an order of AADC > AADB > AAD. The difference in biosorption quantity relied on variation in surface structure, crystal species and element content caused by composting or pyrolysis. Composting enhanced the changes in surface structure, crystal species, functional groups and ion exchange capacity of the AAD, resulting in AAD had greatly improved the biosorption quantity of Cd(II). Pyrolysis increased the adsorption of Cd(II) mainly by increasing the Brunauer-Emmett-Teller (BET) surface area, the particle size and pH, in the same time, providing more oxygen-containing functional groups.
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Affiliation(s)
- Yue Li
- College of Resources and Environmental Science, Northeast Agricultural University, Harbin 150030, China E-mail:
| | - Siqi Huang
- College of Resources and Environmental Science, Northeast Agricultural University, Harbin 150030, China E-mail:
| | - Yingnan Wei
- College of Resources and Environmental Science, Northeast Agricultural University, Harbin 150030, China E-mail:
| | - Xuesheng Liu
- College of Resources and Environmental Science, Northeast Agricultural University, Harbin 150030, China E-mail:
| | - Meng Zhang
- College of Resources and Environmental Science, Northeast Agricultural University, Harbin 150030, China E-mail:
| | - Zonghui Jin
- College of Resources and Environmental Science, Northeast Agricultural University, Harbin 150030, China E-mail:
| | - Hongmei Wang
- College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Juanjuan Qu
- College of Resources and Environmental Science, Northeast Agricultural University, Harbin 150030, China E-mail:
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Akila V, Manikandan A, Sahaya Sukeetha D, Balakrishnan S, Ayyasamy PM, Rajakumar S. Biogas and biofertilizer production of marine macroalgae: An effective anaerobic digestion of Ulva sp. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101035] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Wang RY, Zhang W, Zhang LY, Hua T, Tang G, Peng XQ, Hao MH, Zuo QT. Adsorption characteristics of Cu(II) and Zn(II) by nano-alumina material synthesized by the sol-gel method in batch mode. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:1595-1605. [PMID: 30446911 DOI: 10.1007/s11356-018-3453-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 10/11/2018] [Indexed: 06/09/2023]
Abstract
This study mainly focuses on the preparation, characterization, and sorption performance for Cu(II) and Zn(II) by using nano-alumina material (NA) synthesized through the sol-gel method. The SEM, EDS, FT-IR, and XRD analysis methods were implemented to identify the micromorphology and crystal structure of the synthesized NA absorbent and its structure after the adsorbing procedure. The effect of effective variables including various absorbent dose, contact time, initial ion concentration, and temperature on the removal of Cu(II) and Zn(II) from aqueous solution by using NA was investigated through a single factor experiment. Kinetic studies indicated that adsorption of copper and zinc ions by NA was chemical adsorption. The adsorption isotherm data were fitted by Langmuir (R2: 0.919, 0.914), Freundlich (R2: 0.983, 0.993), and Temkin (R2: 0.876, 0.863) isotherms, indicating that copper and zinc ions were easily adsorbed by NA with maximum adsorption capacities of 87.7 and 77.5 mg/g for Cu2+ and Zn2+, respectively. Thermodynamic parameters indicated that the adsorption of Cu2+ was spontaneous(G<0) and the adsorption of Zn2+ might not be spontaneous (G > 0) by NA. Graphical abstract ᅟ.
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Affiliation(s)
- Ren-Yu Wang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China
| | - Wei Zhang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China.
| | - Li-Ying Zhang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China
| | - Tian Hua
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China
| | - Gang Tang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China
| | - Xiao-Qian Peng
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China
| | - Ming-Hui Hao
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China
| | - Qi-Ting Zuo
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, People's Republic of China.
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Imran M, Anwar K, Akram M, Shah GM, Ahmad I, Samad Shah N, Khan ZUH, Rashid MI, Akhtar MN, Ahmad S, Nawaz M, Schotting RJ. Biosorption of Pb(II) from contaminated water onto Moringa oleifera biomass: kinetics and equilibrium studies. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:777-789. [PMID: 31081349 DOI: 10.1080/15226514.2019.1566880] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The present study aims at evaluating a batch scale biosorption potential of Moringa oleifera leaves (MOL) for the removal of Pb(II) from aqueous solutions. The MOL biomass was characterized by FTIR, SEM, EDX, and BET. The impact of initial concentrations of Pb (II), adsorbent dosage, pH, contact time, coexisting inorganic ions (Ca2+, Na+, K+, Mg2+, CO32-, HCO3-, Cl-), electrical conductivity (EC) and total dissolved salts (TDS) in water was investigated. The results revealed that maximum biosorption (45.83 mg/g) was achieved with adsorbent dosage 0.15 g/100 mL while highest removal (98.6%) was obtained at adsorbent biomass 1.0 g/100 mL and pH 6. The presence of coexisting inorganic ions in water showed a decline in Pb(II) removal (8.5% and 5%) depending on the concentrations of ions. The removal of Pb(II) by MOL decreased from 97% to 89% after five biosorption/desorption cycles with 0.3 M HCl solution. Freundlich model yielded a better fit for equilibrium data and the pseudo-second-order well described the kinetics of Pb(II) biosorption. FTIR spectra showed that -OH, C-H, -C-O, -C = O, and -O-C functional groups were involved in the biosorption of Pb(II). The change in Gibbs free energy (ΔG = -28.10 kJ/mol) revealed that the biosorption process was favorable and thermodynamically driven. The results suggest MOL as a low cost, environment-friendly alternative biosorbent for the remediation of Pb(II) contaminated water.
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Affiliation(s)
- Muhammad Imran
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
- b MOE Key Laboratory of Pollution Process and Environmental Criteria, College of Environmental Science and Engineering , Nankai University , Tianjin , China
| | - Kamran Anwar
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Muhammad Akram
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Ghulam Mustafa Shah
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Iftikhar Ahmad
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Noor Samad Shah
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Zia Ul Haq Khan
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Muhammad Imtiaz Rashid
- c Center of Excellence in Environmental Studies , King Abdulaziz University , Jeddah , Saudi Arabia
| | | | - Sajjad Ahmad
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Muhammad Nawaz
- e Center for Advanced Studies in Physics , GC University , Lahore , Pakistan
| | - Ruud J Schotting
- f Environmental Hydrogeology Research Group, Department of Earth Sciences , Utrecht University , Utrecht , Netherlands
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Jayakumar V, Govindaradjane S, Rajasimman M. Isotherm and kinetic modeling of sorption of Cadmium onto a novel red algal sorbent, Hypnea musciformis. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s40808-018-0566-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Treatment of Wastewater Using Seaweed: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15122851. [PMID: 30551682 PMCID: PMC6313474 DOI: 10.3390/ijerph15122851] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/06/2018] [Accepted: 12/10/2018] [Indexed: 12/19/2022]
Abstract
Inadequately treated or untreated wastewater greatly contribute to the release of unwanted toxic contaminants into water bodies. Some of these contaminants are persistent and bioaccumulative, becoming a great concern as they are released into the environment. Despite the abundance of wastewater treatment technologies, the adsorption method overall has proven to be an excellent way to treat wastewater from multiple industry sources. Because of its significant benefits, i.e., easy availability, handling, and higher efficiency with a low cost relative to other treatments, adsorption is opted as the best method to be used. However, biosorption using naturally found seaweeds has been proven to have promising results in removing pollutants, such as dyes from textile, paper, and the printing industry, nitrogen, and phosphorous and phenolic compounds, as well as heavy metals from various sources. Due to its ecofriendly nature together with the availability and inexpensiveness of raw materials, biosorption via seaweed has become an alternative to the existing technologies in removing these pollutants from wastewater effectively. In this article, the use of low-cost adsorbent (seaweed) for the removal of pollutants from wastewater has been reviewed. An extensive table summarises the applicability of seaweed in treating wastewater. Literature reported that the majority of research used simulated wastewater and minor attention has been given to biosorption using seaweed in the treatment of real wastewater.
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New Sustainable Biosorbent Based on Recycled Deoiled Carob Seeds: Optimization of Heavy Metals Remediation. J CHEM-NY 2018. [DOI: 10.1155/2018/5748493] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, an efficient biosorbent was developed from deoiled carob seeds, a agroindustrial waste. The biosorption efficiency was evaluated for cadmium and cobalt ions removal from aqueous solution under various parameters such as treating agent, solution pH, biosorbent dosage, contact time, initial metal ions concentration, and temperature. The effect of some major inorganic ions including Na+, K+, Ca2+, Mg2+, and Al3+ on the biosorption was also established. Based on this preliminary study, four independent variables including solution pH, biosorbents dosage, initial metal concentration, and treating agent were chosen for the optimization of the process using full-factorial experimental design. It was found that chemical pretreatment of the raw deoiled carob seeds with NaOH strongly enhances its biosorption potential. Thus, the optimal conditions for high biosorption of cadmium(II) and cobalt(II) were achieved at pH of 6, biosorbent dosage of 1 g/L, and initial metal concentration of 50 mg/L. The biosorbents were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Boehm titration, and the point of zero charge (pHPZC).
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Şahin S, Emik S. Fast and highly efficient removal of 2,4-D using amino-functionalized poly (glycidyl methacrylate) adsorbent: Optimization, equilibrium, kinetic and thermodynamic studies. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.091] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kocaoba S, Arısoy M. Biosorption of cadmium(II) and lead(II) from aqueous solutions using Pleurotus ostreatus immobilized on bentonite. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1442477] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Sevgi Kocaoba
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, Davutpasa, Istanbul, Turkey
| | - Munevver Arısoy
- Faculty of Health Sciences, Department of Nutrition and Dietary, Ankara University, Altındag, Ankara, Turkey
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Bilal M, Rasheed T, Sosa-Hernández JE, Raza A, Nabeel F, Iqbal HMN. Biosorption: An Interplay between Marine Algae and Potentially Toxic Elements-A Review. Mar Drugs 2018; 16:E65. [PMID: 29463058 PMCID: PMC5852493 DOI: 10.3390/md16020065] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 02/09/2018] [Accepted: 02/16/2018] [Indexed: 02/05/2023] Open
Abstract
In recent decades, environmental pollution has emerged as a core issue, around the globe, rendering it of fundamental concern to eco-toxicologists, environmental biologists, eco-chemists, pathologists, and researchers from other fields. The dissolution of polluting agents is a leading cause of environmental pollution of all key spheres including the hydrosphere, lithosphere, and biosphere, among others. The widespread occurrence of various pollutants including toxic heavy metals and other emerging hazardous contaminants is a serious concern. With increasing scientific knowledge, socioeconomic awareness, human health problems, and ecological apprehensions, people are more concerned about adverse health outcomes. Against this background, several removal methods have been proposed and implemented with the aim of addressing environmental pollution and sustainable and eco-friendly development. Among them, the biosorption of pollutants using naturally inspired sources, e.g., marine algae, has considerable advantages. In the past few years, marine algae have been extensively studied due to their natural origin, overall cost-effective ratio, and effectiveness against a broader pollutant range; thus, they are considered a potential alternative to the conventional methods used for environmental decontamination. Herein, an effort has been made to highlight the importance of marine algae as naturally inspired biosorbents and their role in biosorption. Biosorption mechanisms and factors affecting biosorption activities are also discussed in this review. The utilization of marine algae as a biosorbent for the removal of numerous potentially toxic elements has also been reviewed.
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Affiliation(s)
- Muhammad Bilal
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Tahir Rasheed
- State Key Laboratory of Metal Matrix Composites, The School of Chemistry & Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Juan Eduardo Sosa-Hernández
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico.
| | - Ali Raza
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Faran Nabeel
- State Key Laboratory of Metal Matrix Composites, The School of Chemistry & Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico.
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Soliman AAE, Shenashen MA, El-Sewify IM, Taha GM, El-Taher MA, Yamaguchi H, Alamoudi AS, Selim MM, El-Safty SA. Mesoporous Organic-Inorganic Core-Shell Necklace Cages for Potentially Capturing Cd2+
Ions from Water Sources. ChemistrySelect 2017. [DOI: 10.1002/slct.201701247] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Abdel-Aty E. Soliman
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
- Environ. Applications of Nanomaterials Lab.; Chemistry Department, Faculty of Science; Aswan University; Aswan 81528 Egypt
| | - Mohamed A. Shenashen
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
| | - Islam M. El-Sewify
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
| | - Gharib M. Taha
- Environ. Applications of Nanomaterials Lab.; Chemistry Department, Faculty of Science; Aswan University; Aswan 81528 Egypt
| | - Mahmoud. A. El-Taher
- Environ. Applications of Nanomaterials Lab.; Chemistry Department, Faculty of Science; Aswan University; Aswan 81528 Egypt
| | - Hitoshi Yamaguchi
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
| | - Ahmad S. Alamoudi
- Desalination Technologies Research Institute (DTRI); Al-Jubail 31951 Saudi Arabia
| | - Mahmoud M. Selim
- Department of Mathematics; Al-Aflaj College of Science and Human Studies; Prince Sattam Bin Abdulaziz University; Al-Aflaj 710-11912 Saudi Arabia
| | - Sherif A. El-Safty
- National Institute for Materials Science (NIMS) 1-2-1 Sengen; Tsukuba-shi Ibaraki-ken 305-0047 Japan
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Karray R, Karray F, Loukil S, Mhiri N, Sayadi S. Anaerobic co-digestion of Tunisian green macroalgae Ulva rigida with sugar industry wastewater for biogas and methane production enhancement. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 61:171-178. [PMID: 28038905 DOI: 10.1016/j.wasman.2016.11.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 10/20/2016] [Accepted: 11/30/2016] [Indexed: 05/18/2023]
Abstract
Ulva rigida is a green macroalgae, abundantly available in the Mediterranean which offers a promising source for the production of valuable biomaterials, including methane. In this study, anaerobic digestion assays in a batch mode was performed to investigate the effects of various inocula as a mixture of fresh algae, bacteria, fungi and sediment collected from the coast of Sfax, on biogas production from Ulva rigida. The results revealed that the best inoculum to produce biogas and feed an anaerobic reactor is obtained through mixing decomposed macroalgae with anaerobic sludge and water, yielding into 408mL of biogas. The process was then investigated in a sequencing batch reactor (SBR) which led to an overall biogas production of 375mL with 40% of methane. Further co-digestion studies were performed in an anaerobic up-flow bioreactor using sugar wastewater as a co-substrate. A high biogas production yield of 114mL g-1 VSadded was obtained with 75% of methane. The co-digestion proposed in this work allowed the recovery of natural methane, providing a promising alternative to conventional anaerobic microbial fermentation using Tunisian green macroalgae. Finally, in order to identify the microbial diversity present in the reactor during anaerobic digestion of Ulva rigida, the prokaryotic diversity was investigated in this bioreactor by the denaturing gradient gel electrophoresis (DGGE) method targeting the 16S rRNA gene.
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Affiliation(s)
- Raida Karray
- Laboratoire des Bioprocédés Environnementaux, Laboratoire Mixte International LMI (COSYS-Med), Centre de Biotechnologie de Sfax, B.P. "1177", 3018 Sfax, Tunisia
| | - Fatma Karray
- Laboratoire des Bioprocédés Environnementaux, Laboratoire Mixte International LMI (COSYS-Med), Centre de Biotechnologie de Sfax, B.P. "1177", 3018 Sfax, Tunisia
| | - Slim Loukil
- Laboratoire des Bioprocédés Environnementaux, Laboratoire Mixte International LMI (COSYS-Med), Centre de Biotechnologie de Sfax, B.P. "1177", 3018 Sfax, Tunisia
| | - Najla Mhiri
- Laboratoire des Bioprocédés Environnementaux, Laboratoire Mixte International LMI (COSYS-Med), Centre de Biotechnologie de Sfax, B.P. "1177", 3018 Sfax, Tunisia
| | - Sami Sayadi
- Laboratoire des Bioprocédés Environnementaux, Laboratoire Mixte International LMI (COSYS-Med), Centre de Biotechnologie de Sfax, B.P. "1177", 3018 Sfax, Tunisia.
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Kiran MG, Pakshirajan K, Das G. Heavy metal removal from multicomponent system by sulfate reducing bacteria: Mechanism and cell surface characterization. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:62-70. [PMID: 26847522 DOI: 10.1016/j.jhazmat.2015.12.042] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/27/2015] [Accepted: 12/22/2015] [Indexed: 05/26/2023]
Abstract
This study evaluated the combined effect of Cd(II), Cu(II), Ni(II), Fe(III), Pb(II) and Zn(II) on each other removal by anaerobic biomass under sulfate reducing condition. Statistically valid Plackett-Burman design of experiments was employed to carry out this mixture study. The results obtained showed a maximum removal of Cu(II) (98.9%), followed by Ni(II) (97%), Cd(II) (94.8%), Zn(II) (94.6%), Pb(II) (94.4%) and Fe(III) (93.9%). Analysis of variance (ANOVA) of the sulfate and chemical oxygen demand (COD) reduction revealed that the effect due to copper was highly significant (P value<0.05) on sulfate and COD removal. To establish the role of sulfate reducing bacteria (SRB) in the metal removal process, surface morphology and composition of the metal loaded biomass were analyzed by transmission electron microscopy (TEM) equipped with energy dispersive spectroscopy (EDS) and by field emission scanning electron microscopy (FESEM) integrated with energy dispersive X-ray spectroscopy (EDX). The results obtained revealed that the metal precipitates are associated with the outer and inner cell surface of the SRB as a result of the sulfide generated by SRB.
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Affiliation(s)
- M Gopi Kiran
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Kannan Pakshirajan
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
| | - Gopal Das
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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Adsorption Properties of Nano-MnO₂-Biochar Composites for Copper in Aqueous Solution. Molecules 2017; 22:molecules22010173. [PMID: 28117702 PMCID: PMC6155803 DOI: 10.3390/molecules22010173] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/09/2017] [Accepted: 01/13/2017] [Indexed: 11/16/2022] Open
Abstract
There is a continuing need to develop effective materials for the environmental remediation of copper-contaminated sites. Nano-MnO2–biochar composites (NMBCs) were successfully synthesized through the reduction of potassium permanganate by ethanol in a biochar suspension. The physicochemical properties and morphology of NMBCs were examined, and the Cu(II) adsorption properties of this material were determined using various adsorption isotherms and kinetic models. The adsorption capacity of NMBCs for Cu(II), which was enhanced by increasing the pH from 3 to 6, was much larger than that of biochar or nano-MnO2. The maximum adsorption capacity of NMBCs for Cu(II) was 142.02 mg/g, which was considerably greater than the maximum adsorption capacities of biochar (26.88 mg/g) and nano-MnO2 (93.91 mg/g). The sorption process for Cu(II) on NMBCs fitted very well to a pseudo-second-order model (R2 > 0.99). Moreover, this process was endothermic, spontaneous, and hardly influenced by ionic strength. The mechanism of Cu(II) adsorption on NMBCs mainly involves the formation of complexes between Cu(II) and O-containing groups (e.g., COO–Cu and Mn–O–Cu). Thus, NMBCs may serve as effective adsorbents for various environmental applications, such as wastewater treatment or the remediation of copper-contaminated soils.
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Lee DM, Kao CW, Huang TW, You JH, Liu SJ. Electrospinning of Sheath-Core Structured Chitosan/Polylactide Nanofibers for the Removal of Metal Ions. INT POLYM PROC 2016. [DOI: 10.3139/217.3082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Biodegradable sheath-core structured nanofibers, with chitosan as the sheath material and polylactide (PLA) at the core, were developed for the removal of metal ions. For the electrospinning of sheath-core nanofibers, predetermined weight percentages of chitosan were first dissolved in trifluoroacetic acid (TFA) with sonication for 30 min, and then mixed by a magnetic stirrer for 12 h. The same procedure was conducted with polylactide (PLA). The chitosan and polylactide solutions were then fed into two different capillary tubes with needles of small diameter, respectively, for co-axial electrospinning. The delivery rates of the solutions were controlled by two independent pumps for the sheath chitosan solutions and the core PLA solution. The morphology of the electrospun nanofibers was examined by a scanning electron microscope (SEM). The average diameter of the electrospun nanofibers was found to range from 234 nm to 562 nm. The influence of various process conditions on the metal removal was also investigated. The removal efficiency of the sheath-core chitosan/PLA nanofibers was measured and compared with the efficiency of blended chitosan/PLA nanofibers. The experimental results suggested that the electrospun sheath-core nanofibers exhibited superior metal ion removal efficiency compared to the blended nanofibers. The removal efficiency of the nanofibrous membranes increased with the initial metal ion concentrations and the pH value and decreased with the temperature of the solutions.
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Affiliation(s)
- D.-M. Lee
- Department of Mechanical Engineering , Chang Gung University, Tao-Yuan , Taiwan
| | - C.-W. Kao
- Department of Mechanical Engineering , Chang Gung University, Tao-Yuan , Taiwan
- Department of Anesthesiology , Chiayi Chang Gung Memorial Hospital, Chiayi , Taiwan
| | - T.-W. Huang
- Department of Mechanical Engineering , Chang Gung University, Tao-Yuan , Taiwan
| | - J.-H. You
- Department of Chemical and Materials Engineering , Chang Gung University, Tao-Yuan , Taiwan
| | - S.-J. Liu
- Department of Mechanical Engineering , Chang Gung University, Tao-Yuan , Taiwan
- Department of Orthopedic Surgery , Chang Gung Memorial Hospital, Linkou , Taiwan
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Zeraatkar AK, Ahmadzadeh H, Talebi AF, Moheimani NR, McHenry MP. Potential use of algae for heavy metal bioremediation, a critical review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 181:817-831. [PMID: 27397844 DOI: 10.1016/j.jenvman.2016.06.059] [Citation(s) in RCA: 195] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 06/11/2016] [Accepted: 06/26/2016] [Indexed: 05/11/2023]
Abstract
Algae have several industrial applications that can lower the cost of biofuel co-production. Among these co-production applications, environmental and wastewater bioremediation are increasingly important. Heavy metal pollution and its implications for public health and the environment have led to increased interest in developing environmental biotechnology approaches. We review the potential for algal biosorption and/or neutralization of the toxic effects of heavy metal ions, primarily focusing on their cellular structure, pretreatment, modification, as well as potential application of genetic engineering in biosorption performance. We evaluate pretreatment, immobilization, and factors affecting biosorption capacity, such as initial metal ion concentration, biomass concentration, initial pH, time, temperature, and interference of multi metal ions and introduce molecular tools to develop engineered algal strains with higher biosorption capacity and selectivity. We conclude that consideration of these parameters can lead to the development of low-cost micro and macroalgae cultivation with high bioremediation potential.
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Affiliation(s)
| | - Hossein Ahmadzadeh
- Department of Chemistry, Ferdowsi University of Mashhad, Mashhad, 1436-91779, Iran.
| | - Ahmad Farhad Talebi
- Genetic Department, Faculty of Biotechnology, Semnan University, Semnan, 35131-19111, Iran
| | - Navid R Moheimani
- Algae R&D Centre, School of Veterinary and Life Sciences, Murdoch University, Australia
| | - Mark P McHenry
- School of Engineering and Information Technology, Murdoch University, Australia
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Fawzy MA. Phycoremediation and adsorption isotherms of cadmium and copper ions by Merismopedia tenuissima and their effect on growth and metabolism. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 46:116-121. [PMID: 27458699 DOI: 10.1016/j.etap.2016.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 07/14/2016] [Accepted: 07/16/2016] [Indexed: 06/06/2023]
Abstract
The current study tends to investigate the removal of cadmium and copper ions by Merismopedia tenuissima, grown in different concentrations of cadmium and copper ions, as well to investigate their effects on growth and metabolism. Sorption isotherms of Langmuir and Freundlich were obtained for the quantitative description of cadmium and copper uptake by M. tenuissima. Langmuir model adequately to describe the data of biosorption for these metals. However, the Freundlich model could work well in case of Cu(2+) only. M. tenuissima appears to be more efficient for removing Cd(2+) ions than Cu(2+). However, the affinity constant of Cu(2+) on the biomass of M. tenuissima was higher than Cd(2+) indicating that M. tenuissima is more tolerant to Cd(2+) phytotoxicity than Cu(2+). FTIR analysis of algae with and without biosorption revealed the presence of carboxyl, amino, amide and hydroxyl groups, which were responsible for biosorption of Cd(+2) and Cu(+2) ions.
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Affiliation(s)
- Mustafa A Fawzy
- Botany and Microbiology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt.
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Kamar FH, Nechifor AC, Nechifor G, Al-Musawi TJ, Mohammed AH. Aqueous Phase Biosorption of Pb(II), Cu(II), and Cd(II) onto Cabbage Leaves Powder. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2016. [DOI: 10.1515/ijcre-2015-0178] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this study, the biosorption of lead (Pb(II)), copper (Cu(II)), and cadmium (Cd(II)) ions from aqueous solution using waste of cabbage leaves powder (CLP) was investigated as a function of pH, shaking time, initial metal concentration, and biosorbent dose. The maximum removal efficiency at optimum condition in single biosorption system was 95.67, 92.42, and 88.92 % for Pb(II), Cu(II), and Cd(II) ions, respectively. These values reduced in ternary systems in the same sequence. Langmuir and extended Langmuir isotherm models were found to be the best fit of the isotherm data for single and ternary biosorption systems, respectively. The kinetic data of the three metals were better fit by the pseudo-second-order model with higher coefficient of determination and more closely predicted uptake. In addition, the results showed that the intraparticle diffusion was the dominating mechanism. Thermodynamic study showed that the biosorption of Pb(II), Cu(II), and Cd(II) onto CLP was a chemical reaction which was exothermic in nature. Finally, SEM image shows that CLP has a number of heterogeneous small pores while the Fourier transform infrared (FTIR) spectroscopic analysis showed that the carboxyl, amine, and hydroxyl groups are the major groups that are responsible for the biosorption process.
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Affiliation(s)
- Firas Hashim Kamar
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, Romania
- Institute of Technology-Baghdad, Middle Technical University, Baghdad, Iraq
| | - Aurelia Cristina Nechifor
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, Romania
| | - Gheorghe Nechifor
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, Romania
| | - Tariq J. Al-Musawi
- Department of Civil Engineering, Faculty of Engineering, Isra University, Amman, Jordan
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50
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Khan TA, Mukhlif AA, Khan EA, Sharma DK. Isotherm and kinetics modeling of Pb(II) and Cd(II) adsorptive uptake from aqueous solution by chemically modified green algal biomass. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s40808-016-0157-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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