Copper removal by algal biomass: Biosorbents characterization and equilibrium modelling

Vilar, Vítor J.P.; Botelho, Cidália M.S.; Pinheiro, José Paulo; Domingos, Rute F.; Boaventura, Rui A.R.

doi:10.1016/j.jhazmat.2008.07.083

Cited by 59 publications

(27 citation statements)

References 26 publications

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“…First of all the presence of mixed microbial consortium could actually be an advantage for the heavy metal binding [89]. The presence of filtration aids on the other hand is not likely to affect biosorption capacity of the biomass [90].The effect of cell disruption depends on the occupied disruption technique. Generally, thermal treatment may even increase the heavy metal affinity of cells by removal of soluble cell wall proteins that can reduce the metal sorption capacity of cell wall polysaccharides [35,36].…”

mentioning

confidence: 99%

Utilization of Industrial Microbe Side Streams for Biosorption of Heavy Metals from Wastewaters

Taskila¹,

Leiviskä²,

Haapalainen³

et al. 2015

J Bioremed Biodeg

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The present report reviews the potential and applicability of industrial microbe side streams produced in Finnish bioprocess industries for biosorption of heavy metals from wastewaters. Microbial side stream biomasses are formed worldwide in e.g. food, brewing, biofuel, pharmaceuticals, wood processing and enzyme manufacturing industries. Although these streams are typically used for low-valued animal feed or biogas production, they would also have potential for biosorbent materials to be used in in situ water treatment. Since major challenges have been recognized, especially regarding the availability of biomass, and to logistic and processing cost, biosorption is not the most economically attractive option for the use of these biomasses at the moment. However, in the future the situation may change due to new incentives or more cost-efficient biosorbent preparation technologies. This report will provide a knowledge basis for the consideration of biosorption applications for industrial microbe side streams. Journal of Bior emediation & Biodegradation Yeast fermentationsEthanol fermentation process consists of several unit operations to convert carbohydrates into ethanol by S. cerevisiae. This technology is employed worldwide in production of alcoholic beverages and bioethanol. After brewing the yeast cells are collected from the bottom of tank or separated by centrifugation to form slurry of 20-50% solids [6]. Loose slurries are further concentrated by filtration after which they are thermally disrupted at around 80°C and optionally also with organic acids. The production capacity of major Finnish breweries is over 400 million l/a [7] and the respective quantity of formed yeast containing residues is approximately 2000 t/a.Bioethanol is produced by St1 Biofuels Oy in quantity of 13,000 t/a in Lahti, Vantaa, Hamina, Jokioinen and Hämeenlinna. Ethanol is further concentrated at Hamina. These production sites produce altogether over 75,000 t/a of residues that contain also yeast cells. Hämeenlinna plant directs all organic residues to biogas production [8] while the other plants produce also animal feed. The amount of produced feed is over 45,000 t/a [9][10][11][12]. The company has also been appointed an environmental permit in 2013 for production of lignocellulose ethanol in Kajaani [13]. Yeast residues of the process together with other residues would be directed to energy production. Enzyme productionThe main steps in enzyme production processes are medium preparation, inoculum preparation, inoculation and fermentation, cell removal, product purification and concentration, and formulation. The nature of produced enzyme affects also properties of microbial residues. Extracellular enzymes are recovered from the fermentation broth after removal of cells which remains the cells intact. Cell removal is conducted using filter press together with filter aids and flocculants. On the contrary, intracellular products are recovered via disruption of cells by chemical or mechanical methods, after which cell debri...

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mentioning

confidence: 99%

Utilization of Industrial Microbe Side Streams for Biosorption of Heavy Metals from Wastewaters

Taskila¹,

Leiviskä²,

Haapalainen³

et al. 2015

J Bioremed Biodeg

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“…Luna et al (2007) realizaron investigación básica para conocer la remoción de iones cobre desde soluciones acuosas empleando Sargassum filipéndula en condiciones batch, estudiando parámetros experimentales tales como pH, tiempo de sorción, condiciones de equilibrio y concentración inicial de los iones cobre. Estudios sobre la biosorción de iones cobre mediante biomasas de algas marinas han sido reportados en la literatura (Sheng, Wee, Ting y Chen, 2008;Vilar, Botelho, Pinheiro, Domingos y Boaventura, 2009;Fagundes-Klen, Veit, Borba, Bergamasco, Vaz y da Silva, 2010;Lahari, King y Prasad, 2011;Tapia, Santander, Pavez, Guzmán y Romero, 2011;Estefandian, Javadian, Parvini, Khoshandam y Katal, 2013;Kushwah y Srivastav, 2015). Tratamientos biológicos usando lechos microbianos conteniendo un lecho flotante de algas verde-azules que permitían el desarrollo de Biomat (nombre comercial del lecho), han sido aplicados en la eliminación de cobre (Berder y Phillips, 1996).…”

Section: Revisión Bibliográficaunclassified

Remoción De Iones Cobre Con Sorbentes Orgánicos

Tapia¹,

Pavez²,

Santander³

et al. 2017

HOLOS

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RESUMENSe estudió la remoción de iones de cobre desde soluciones acuosas artificiales empleando diferentes materiales sorbentes orgánicos: cáscaras de nuezalmendra, cáscaras de avellana, cáscaras de maní, aserrín, cuescos de durazno, algas. Las pruebas de sorción se realizaron a escala batch estudiándose la cinética de sorción de los iones cobre y los efectos en la remoción de cobre de la concentración del sorbente, la concentración inicial de cobre y la fuerza iónica de la solución. Los resultados obtenidos muestran que todos los sorbentes producen remociones parciales de cobre, sin embargo al comparar la efectividad de ellos, las cáscaras de nuezalmendra, el aserrín y las cáscaras de maní fueron más efectivos en la remoción de cobre, mientras que los cuescos de durazno resultaron menos adecuados. Los datos de equilibrio de adsorción de cobre en función del tiempo de contacto con el sorbente, se analizaron mediante las ecuaciones de isotermas de adsorción de Freundlich, Langmuir y BET, obteniéndose con la ecuación de Freundlich coeficientes de correlación (R 2 ) del orden de 0,99 mostrando que este modelo representaba en forma más adecuada el proceso de sorción de los iones de cobre en los sorbentes utilizados. La fuerza iónica de la solución fue estudiada a través de la aplicación de diferentes concentraciones de NaCl encontrándose que la remoción de cobre disminuía al aumentar la fuerza iónica.Palabras claves: Sorbentes orgánicos, remoción, iones cobre, isotermas de adsorción. REMOVAL OF COPPER IONS WITH ORGANIC SORBENTS ABSTRACTCopper ions removal was studied from aqueous solutions using different artificial organic sorbent materials: walnut-almond shells, hazelnut shells, peanut hulls, sawdust, peach pits and algae. Sorption tests scale batch were conducted to study the kinetics of sorption of ions copper and the effects of the sorbent concentration, initial concentration of copper and the ionic strength of the solution. The results showed that the sorbents produce a partial removal of copper, however to compare the effectiveness of them, nutshells, almond, sawdust and peanut shells were more effective in the removal of copper, while the peach pits were less suitable. The equilibrium data of copper adsorption were analyzed using Freundlich, Langmuir and BET equations, obtained with the Freundlich equation correlation coefficients (R 2 ) of 0.99, showing that this model was more adequate to represent the sorption of copper ions in the sorbents. The ionic strength of the solution was studied through the application of different NaCl concentrations, obtaining that the copper removal decreased with increasing ionic strength.

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“…It is one of the main heavy metals released from the semiconductor and plating industries, which are booming industries in Korea [3]. The conventional methods of removing copper from water include reverse osmosis and electrokinesis, which are impractical and costly [4]. As an alternative to these methods, Bugil tested the Korean melon for copper (II) ion removal under various conditions in order to achieve the maximum removal of copper ions from water.…”

Section: Introductionmentioning

confidence: 99%

Passive Removal of Copper Ions and Salts from Water for Potable Use

Go¹,

Lee²,

Kai

et al. 2018

Chronicle of The New Researcher

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Authors' Summary: South Korea is a water stressed nation. Thus, we sought out low cost methods to provide potable water. We tested materials for chloride removal from artificial seawater. We found that of the materials tested, the sweet sagewort plant performed best. The addition of sweet sagewart to seawater can be a low-cost passive pretreatment prior to filtration by reverse osmosis. South Korea is also a major semiconductor producer where copper is released into water supplies in large quantities. Thus we tested various materials for copper removal and found the indigenous Korean melon to be successful at removing copper from water. AbstractEleven different organic materials were tested for their ability to remove chloride ions from an artificial seawater solution. The sweet sagewort (Artemesia annua) was found to have the highest absorption capacity and was further tested in order to determine the optimum conditions for chloride removal. Sweet sagewort is from the same Asteraceae family as the Parthenium sp. which has been shown to remove high percentages of chloride ions from artificial seawater, possibly due to its abundance of amine binding sites. An FT-IR test (Fourier Transform Infrared Spectroscopy) showed that amine groups were also present in the sweet sagewort. The sweet sagewort was able to remove 27.1% of the chloride ions at a ratio of sagewort to artificial seawater of 7 g per liter. Although Korean melon was unsuccessful at removing chloride ions, it removed copper (II) ions from water. The Korean melon was able to achieve 95% removal at a ratio of 2.5 g/L (melon/water) at pH of 7.

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Copper removal by algal biomass: Biosorbents characterization and equilibrium modelling

Cited by 59 publications

References 26 publications

Utilization of Industrial Microbe Side Streams for Biosorption of Heavy Metals from Wastewaters

Utilization of Industrial Microbe Side Streams for Biosorption of Heavy Metals from Wastewaters

Remoción De Iones Cobre Con Sorbentes Orgánicos

Passive Removal of Copper Ions and Salts from Water for Potable Use

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