Utilization of Sago Waste as an Adsorbent for the Removal of Cu(II) Ion from Aqueous Solution

Maheswari, P. Uma; Venilamani, N.; Madhavakrishnan, S.; Shabudeen, P. S. Syed; Venckatesh, Rajendran; Pattabhi, S.

doi:10.1155/2008/376839

Cited by 11 publications

(8 citation statements)

References 6 publications

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“…The surface roughness is indicative of maximum surface area. Generally, the lignocellulosic materials are found to have rough surface with flakes and large number of pores, which makes them good metal adsorbents (Maheswari et al 2008;Goyal et al 2008). …”

Section: Resultsmentioning

confidence: 99%

Biosorption of Cd(II) on jatropha fruit coat and seed coat

Jain

Johnson

Kumar

et al. 2015

Environ Monit Assess

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Jatropha (Jatropha curcas L.) seed coat (JSC) and fruit coat (JFC) were investigated for adsorption of Cd(II) from aqueous solutions. JFC and JSC fine powders were characterized using FTIR and SEM which indicated that both the adsorbents have high surface area, pore space on their surface, and anionic sites for metal ion binding. Batch adsorption study was conducted to study the effect of adsorption time, agitation speed, and initial concentration of Cd(II) ion, pH, and temperature on the adsorption of Cd(II) by adsorbents. The equilibrium isotherm, kinetics, and thermodynamics of the adsorption process were studied. Adsorption equilibrium followed both Langmuir and Freundlich isotherm. The adsorption capacity (Q m ) of Cd(II) on JSC and JFC were 22.83 and 21.97 mg g(-1), respectively. The adsorption of Cd(II) on JSC and JFC is endothermic in nature. The change of free energy (∆G) of the biosorption of Cd(II) on JSC ranged from -37.05 to -40.54 kJ mol(-1) and for JFC -34.50 to -37.35 kJ mol(-1). The enthalpy change (∆H) and entropy change (∆S) was 15.84 kJ mol(-1) and -0.17 kJ mol(-1) K(-1) for JSC and 8.77 kJ mol(-1) and -0.14 kJ mol(-1) K(-1) for JFC. Elovich model provided a better correlation of the experimental data in comparison with pseudo-first-order and pseudo-second-order kinetic models. The study indicated that JFC and JSC have good adsorption capacity for Cd(II).

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Section: Resultsmentioning

confidence: 99%

Biosorption of Cd(II) on jatropha fruit coat and seed coat

Jain

Johnson

Kumar

et al. 2015

Environ Monit Assess

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“…Many reports have appeared on the development of low -cost adsorbents prepared from cheaper and readily available materials [67][68][69][70][71][72][73]. Solid substance with large surface area, micro porous character and chemical nature of their surface have made them potential adsorbents for the removal of heavy metals from industrial waste water [74].…”

Section: Recent Studiesmentioning

confidence: 99%

Untitled

2018

RJLBPCS

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ABSTRACT:Biosorption is an efficient technique for the removal of heavy metal contaminants from water or waste water. The water pollution due to heavy metals is one of the challenging issues in the world. The conventional methods are applying for the removal processes of heavy metal are expensive or takes long time or has less efficiency or not economical. As the availability of cheap bio sorbents, it becomes more reliable and economical process. Most of the biosorbents are waste materials of the part of animal and plants and their efficiency can increase by their chemical modifications. Biosorption process not only used to remove heavy metals but can also be used in the metal recovery. Metals cannot invent in laboratories or industries but they persist in the water bodies.Most of heavy metals are essential for the growth and development of organism below the considerable limits but beyond the limit they are definitely hazardous to all living organisms.Biosorption process is a part of sustainability and can remove the metallic pollutant at their sources and minimize the fresh water pollution. Cost is also an effective parameter for applying a process in the large scale and biosorption is very cheap and requires minimization of chemicals or instruments/apparatus.

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“…Thus, the utilisation and regeneration of the sorbents used to remove harmful substance spills becomes very important. Lowering the costs of chemical and ecological rescue operations while minimising the negative impact of the sorbents on the natural environment could be achieved through usage of the nonconventional sorbents or the reconstruction of adsorption features such that the regenerated sorbents can be reused (Karthikeyan et al, 2010;Maheswari et al, 2008;Nduka, 2012). Regeneration methods for used adsorbents (with impurities adsorbed from liquid and gas phases) that are found in the literature (Bhatnagar and Jain, 2005;Chang et al, 2004;Conti-Ramsden et al, 2012;Drage et al, 2009;Kubota et al, 2013;Qu et al, 2009;Salvador and Jimenez, 1996) can be classified into the following types: thermal, chemical and extraction; "wet" (carried out by means of steam); gas; vacuous; thermovacuous; electrochemical and electrical; and others, such as biological methods that take advantage of X-rays.…”

Section: Introductionmentioning

confidence: 99%

Thermal Regeneration of Mineral Sorbent Using Burner Unit

Sekret¹,

Koldej²

2013

Chemical and Process Engineering

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This article presents the results of scientific investigations on the thermal regeneration process of a sorbent of mineral origin sorbent using a retort burner. Diesel oil, a petroleum liquid, most often pervades the environment during different catastrophes. The investigated sorbent of mineral origin was used in the standard way that the Fire Service removes such petroleum liquids from the environment during disasters. For research purposes, a regeneration chamber with a retort burner was constructed. The first phase of the investigation was aimed at defining the physico-chemical features of the sorbent after subsequent cycles of the regeneration process. The second phase involved an analysis of the energy and ecological effects of the regeneration process. The results showed that the first three cycles of the regeneration process occurred under low emission conditions. The proposed regeneration method achieved a positive energetic effect with a functional heat stream with an average value of 12.4 kW (average efficiency of the regeneration chamber was 68 %). The method is very efficient, with regeneration rates between 7.2 kg/h and 8.4 kg/h. It requires only a short amount of time for the start-up and extinction of the regeneration chamber, and it is also flexible to changes in the process conditions.

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Utilization of Sago Waste as an Adsorbent for the Removal of Cu(II) Ion from Aqueous Solution

Cited by 11 publications

References 6 publications

Biosorption of Cd(II) on jatropha fruit coat and seed coat

Biosorption of Cd(II) on jatropha fruit coat and seed coat

Untitled

Thermal Regeneration of Mineral Sorbent Using Burner Unit

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