Biosorption: An eco-friendly alternative for heavy metal removal

Hima, Karnika Alluri; Srinivasa, Reddy Ronda; Vijaya, Saradhi Settalluri; Jayakumar, Singh Bondili; Suryanarayana, Vadhri; Venkateshwar, P

doi:10.5897/ajb2007.000-2461

Cited by 177 publications

(29 citation statements)

References 24 publications

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“…6). The main mechanisms of binding include ionic interactions and complex formations between metal cations and ligands on the surface of the plants [17]. Hence effective mixing of the particles with the metal containing solution is an effective mechanism to increase the efficiency.…”

Section: Effect Of Biomass Dosagementioning

confidence: 99%

Removal of Lead(II) from Aqueous Solutions Using Sida rhombifolia as Biosorbent

Babu¹,

Shiju²,

Rakesh³

et al. 2017

Asian J. Chem.

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The weed Sida rhombifolia has been used as a biosorbent for removing lead ions from aqueous solution. The biosorption capacity tests were performed on an equilibrium batch basis to study the effects of contact time (10-120 min), temperature (30-60 °C), initial metal ion concentration (10-90 mg/L), agitation speed (50-250 rpm), biomass dosage (50-500 mg) and retention volume (25-150 mL). The thermodynamic parameters indicated that the biosorption was a spontaneous and endothermic process. The pseudo second-order model described the kinetic data very well. The isotherm studies showed that the equilibrium data fits best with Temkin model.

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Section: Effect Of Biomass Dosagementioning

confidence: 99%

Removal of Lead(II) from Aqueous Solutions Using Sida rhombifolia as Biosorbent

Babu¹,

Shiju²,

Rakesh³

et al. 2017

Asian J. Chem.

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“…La aplicación de esta tecnología representa un costo menor y es amigable con el ambiente, ya que minimiza la generación de residuos tóxicos, no requiere nutrientes adicionales y puede regenerarse con la posibilidad de recuperar el metal removido (Vargas et al 2002). Este tipo de biomasa puede provenir de fuentes diversas como los desechos de la industria alimentaria (Alluri et al 2007), cáscara de naranja (Chatterjee y Schiewer 2014), residuos industriales como celulosa (Corvo et al 2014) y residuos de la producción de vino (Villaescusa et al 2004). En México se han realizado algunos estudios empleando mucílago de nopal (Miretzky et al 2008) y plantas macrófitas como Eleocharis acicularis (Miretzky et al 2010), Eichhornia crassipes (Miretzky y Muñoz 2011) y Typha latifolia (Martínez et al 2013), obteniéndose buenos resultados en la adsorción de elementos metálicos como Zn 2+ y Cd 2+ .…”

Section: Introductionunclassified

REMOCIÓN DE Pb2+ Y Cd2+ EN SOLUCIÓN ACUOSA USANDO LA MACRÓFITA ACUÁTICA Typha latifolia INERTE

Cordova-Molina

Vega-González²,

Muñoz-Torres³

2019

Rev. Int. Contam. Amb.

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Palabras clave: adsorción, quimioadsorción, agua contaminada, bioadsorbente, metales pesados RESUMEN El uso de biomasa inerte con la capacidad de retener metales disueltos en un medio acuoso constituye una alternativa para el tratamiento de agua contaminada. El objetivo de este estudio fue evaluar el desempeño de la macrófita Typha latifolia inerte como bioadsorbente de Pb 2+ y Cd 2+ . Se realizaron dos tipos de experimentos: estáticos en lote y dinámicos en columnas. Para los experimentos estáticos se pusieron en contacto 0.075 g del bioadsorbente con 15 mL de solución de un metal. Las concentraciones iniciales de los metales fueron de 10, 20, 30, 40 y 50 mg/L. Después de 60 min, más del 90 % de plomo y más del 80 % de cadmio fueron removidos por la biomasa a pH de 6. De acuerdo con la isoterma de Langmuir la capacidad máxima de adsorción de plomo fue de 38.61 mg/g y la de cadmio de 7.20 mg/g. El proceso de adsorción se da en la superficie del bioadsorbente, donde se forma una monocapa en la que el grupo carboxílico, presente en el bioadsorbente, puede ser especialmente activo. Para los experimentos dinámicos se prepararon columnas de lecho fijo a una altura de 1.5 cm del bioadsorbente, a través de las cuales se pasó un flujo ascendente de 0.053 mL/min. Las concentraciones iniciales de los metales fueron de 10, 30 y 50 mg/L. La capacidad de adsorción del lecho fue de 40.67 mg/g de plomo y de 12.60 mg/g de cadmio. El tiempo de vida útil del bioadsorbente fue de 378 h cuando se removió Pb 2+ y de 130 h cuando se removió Cd 2+ . La Typha latifolia demostró ser eficiente para remover Pb 2+ y Cd 2+ de soluciones acuosas. Con los datos obtenidos es posible reproducir el proceso a una mayor escala. ABSTRACTThe use of inert biomass to remove dissolved metals from water is an alternative to the conventional technologies of wastewater treatments. In the present paper the capacity of the inert macrophyte Typha latifolia as a biosorbent for Pb 2+ and Cd 2+ from aqueous solutions was investigated. Batch experiments were conducted suspending 0.075 g of biomass in 15 mL of metal solution. After 60 min, more than 90 % of lead and more

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“…With increasing ecological awareness, search for effective alternative technologies is essential. Microbial biomass is considered as an alternative for the heavy metals removal (ALLURI et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Heavy metal tolerance and removal efficiency of the Rhodotorula mucilaginosa and Saccharomyces boulardii planktonic cells and biofilm

Sandra¹,

Ivana²,

Sava³

et al. 2018

Kragujevac J Science

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The impact of heavy metals, cadmium (Cd 2+), zinc (Zn 2+) and nickel (Ni 2+) on planktonic cells and biofilm of Rhodotorula mucilaginosa and Saccharomyces boulardii was examined. The metal tolerance testing was performed by MBEC TM-HTP assay. The minimum inhibitory concentration (MICp) and minimum lethal concentration (MLCp) were determined as well as the minimum biofilm eradication concentration (MBEC). Biofilm was more tolerant on the presence of heavy metals than the planktonic cells. The planktonic cells of R. mucilaginosa were tolerant to high concentrations of Cd 2+ , Zn 2+ and Ni 2+ , while the planktonic cells of S. boulardii tolerated Zn 2+ , exclusively. The R. mucilaginosa biofilm was tolerant to all of the tested metal concentrations and the obtained results were confirmed by fluorescence microscopy. S. boulardii did not show ability of biofilm formation. Metal removal efficiency of the R. mucilaginosa planktonic cells and biofilm were also tested. The R. mucilaginosa biofilm showed higher efficiency in metals removing compared to the planktonic cells. Until now, the heavy metal tolerance and the removal efficiency (Cd 2+ , Zn 2+ and Ni 2+) analyzes were performed solely on planktonic cells of Rhodotorula species. In this study, we investigated the metal removal efficiency of R. mucilaginosa planktonic cells and biofilm and compared the obtained results.

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Biosorption: An eco-friendly alternative for heavy metal removal

Cited by 177 publications

References 24 publications

Removal of Lead(II) from Aqueous Solutions Using Sida rhombifolia as Biosorbent

Removal of Lead(II) from Aqueous Solutions Using Sida rhombifolia as Biosorbent

REMOCIÓN DE Pb2+ Y Cd2+ EN SOLUCIÓN ACUOSA USANDO LA MACRÓFITA ACUÁTICA Typha latifolia INERTE

Heavy metal tolerance and removal efficiency of the Rhodotorula mucilaginosa and Saccharomyces boulardii planktonic cells and biofilm

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