Biosorption of copper (II) and lead (II) from aqueous solutions by nonliving green algae Cladophora fascicularis: Equilibrium, kinetics and environmental effects

Deng, Liping; Su, Yingying; Su, Hua; Wang, Xinting; Zhu, Xiaobing

doi:10.1007/s10450-006-0503-y

Cited by 114 publications

(66 citation statements)

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“…The biosorption of copper using Cladophora biomass has been widely investigated in recent years. Deng et al [27] analyzed the ability of marine green alga Cladophora fascicularis (Mertens ex Ag.) Kütz.…”

Section: Discussionmentioning

confidence: 99%

“…In this paper, the possibility of obtaining ecological components for cosmetic purposes by enriching the filamentous biomass of freshwater Cladophora with copper is also presented. Most of the literature sources concern the biosorption of copper (II) by marine Cladophora in wastewater treatment [27,28]. However, several studies have been conducted referring to the use of freshwater Cladophora as a biosorbent to remove copper (II) [26,29,30].…”

Section: Introductionmentioning

confidence: 99%

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Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry

et al. 2015

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This study was undertaken to determine mineral content, amino acid and fatty acid composition of the freshwater macroalga -Cladophora glomerata. The studies were based on the content comparison in algal biomass collected from a lake and cultured in a laboratory. To determine the ability of copper cumulating by macroalgae, Cladophora was cultured in the medium supplemented with Cu ions. This study indicated that the relative abundance of metals in filaments decreased in the following order: Ca > K > Mg > Na > Fe > Cu > Zn > Pb > As > Ni > Cd > Mn > Cr > Co. Total protein content ranged from 14.45% in Cladophora from a lake to 26.55% in Cladophora from a laboratory. The main amino acids analyzed were aspartic and glutamic acid. The fatty acid content in the dry matter of the extract varied depending on the extraction method used: ethylene alcohol (19.0%), acetone (34.5%) or supercritical fluid extraction (62.5%). Freshwater C. glomerata due to the macrominerals, trace elements, amino and fatty acids composition in the extracts can be a valuable resource for nutritional and cosmetic applications.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry

et al. 2015

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“…Author(s) agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License the most dangerous and most prevalent heavy metals from industrial processes (Kakalanga et al, 2012;Deng et al, 2008), which is extensively used in many important industrial applications such as battery manufacturing, printing, photographic materials, explosive manufacturing, coating, and steel industries (Kaya et al, 2009;Babarinde et al, 2012). Lead is toxic at low concentrations hence used as a test analyte in this study.…”

Section: Introductionmentioning

confidence: 99%

Comparative biosorption of Pb2+ ions from aqueous solution using Moringa oleifera plant parts: Equilibrium, kinetics and thermodynamic studies

Nyoni¹,

Satiya²,

Mukaratirwa‐Muchanyereyi³

et al. 2017

Afr. J. Biotechnol.

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This research article presents a comparative study of the adsorption properties of Moringa oleifera biomass using Pb 2+ ions as test analyte. The investigated parameters which affected the adsorption process were the effect of pH, initial concentration, adsorbent dose, contact time, and temperature. The comparison of adsorption process was evaluated in the pH range of 3 to 8, concentration range from 5 to 20 ppm, temperature varied from 25 to 80°C, variation of contact time from 15 to 80 min, and dose of the adsorbent from 0.3 to 1.2 g. The results obtained showed that a high adsorbent dose is required for high adsorption capacity. The pH of 7 was most effective with temperature set at 25°C and contact time of 60 min. The Temkin, Dubunin-Radushkevich, Langmuir and Freundlich isotherms were applied and fitted well to the data and values of the parameters of these isotherm equations were calculated. The Langmuir isotherm proved to be the overall best isotherm. The adsorbent surface functional groups were identified with Fourier Transform Infrared (FTIR) spectroscopy. The maximum adsorption capacity obtained was 98% for seed, 96% for blended, 94% for pods, and 92% for leaves. Better thermodynamic and kinetic properties were obtained with the seeds and the blended samples. In total, these results indicate that the blended moringa biosobent can be employed as a low-cost biosorbent for the removal of lead ions from water.

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“…These heavy metals are not biodegradable and tend to accumulate in living organisms, causing various diseases and disorders. Lead is one of the three most toxic heavy metals that have dormant long-term negative impacts on health, causing hepatitis, anemia, nephritic syndrome, brain damage, mental deficiency, anorexia, vomiting, malaise, and encephalopathy (Deng et al 2006). Lead affects human health and is a possible cause of human cancer (Lin et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Conditions for Adsorption of Lead from Water by Rice Husk Ash

Nnaji¹,

Ebeagwu²,

Ugwu³

2016

BioResources

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The effects of physico-chemical parameters such as pH, temperature, and lead concentration on the efficiency of lead adsorption by rice husk ash were determined. Rice husk was incinerated at 800 °C for 6 h and then activated with 0.5 M HCl. Rice husk and rice husk ash (RHA) were characterized using scanning electron microscopy and X-ray fluorescence. Batch adsorption tests were conducted at different pH, temperature, and initial lead concentration. Kinetic studies were conducted at optimum pH of 3.0. The optimum lead removal of 80% was recorded at pH 3.0. Efficiency of lead removal by RHA decreased to 45% as pH increased to 9.0. Freundlich, Langmuir, Temkin, and Dubinin Radushkevich (D-R) isotherms performed acceptably well, with R 2 values of 0.954≤R 2 ≤0.991, 0.965≤R 2 ≤0.996, 0.949≤R 2 ≤0.979, and 0.970≤R 2 ≤0.997, respectively. Lead removal efficiency decreased from 75% to 50% as temperature increased from 30 °C to 40 °C. The adsorption of lead by RHA was by ion exchange in the acidic pH range and by physisorption in the alkaline pH range. Thermodynamic studies revealed that the process was exothermic and spontaneous and further confirmed the feasibility of the process with -22.34≤∆G 0 ≤-24.94. The intraparticle diffusion model and the pseudo first order kinetic model fit the experimental data very well, with average R 2 values of 0.985 and 0.987, respectively.

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Biosorption of copper (II) and lead (II) from aqueous solutions by nonliving green algae Cladophora fascicularis: Equilibrium, kinetics and environmental effects

Cited by 114 publications

References 61 publications

Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry

Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry

Comparative biosorption of Pb2+ ions from aqueous solution using Moringa oleifera plant parts: Equilibrium, kinetics and thermodynamic studies

Physicochemical Conditions for Adsorption of Lead from Water by Rice Husk Ash

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