Adsorptive Removal of Toxic Metal from Aqueous Solution by Using a Biowaste -Used Tea Leaves

Shrestha, Bindra; Homagai, PL; Pokhrel,; Ghimire, KN

doi:10.3126/njst.v13i2.7722

Cited by 4 publications

(4 citation statements)

References 16 publications

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“…However many studies have been made and revealed that maximum adsorption of metal occurred at a low concentration of metal. 30,31 In the present case, it was 25 mg/l while in case of Karnib et al 15 was 30 mg/l. Same results has been observed by Kamble et al 20 adsorption was maximum at PACC (90.5%) > PACB (87.5%) > CAC (85.5%) in a solution containing 25 mg/l concentration of Cu for all PACs.…”

Section: Effect Of Contact Time On Adsorption Of Co (Ii)contrasting

confidence: 43%

“…-2B). However, many studies revealed that the increasing contact time has led to increase in adsorption of metal 30,20 but remains stable with a further increase in contact time. 29 Our results had shown the same trend for contact time.…”

Section: Effect Of Contact Time On Adsorption Of Co (Ii)mentioning

confidence: 99%

“…The porous activated carbon obtained from locally available plant materials such as Ficus benghalensis (PAC-FB), Syzygium cumini (PAC-SC), Azadirachta indica (PAC-AI), Tamarindus indica (PAC-TI) and Mangifera indica (PAC-MI), has been used in order to study removal of Co (II) from aqueous solution. A batch adsorption study was conducted at various doses (1, 2, 3, 4, 5, and 6), concentration (25, 50, 75, 100 mg/ L) and contact time(30, 60, 90, 120 min). The contents were kept in separate conical flasks of 250 ml capacity.…”

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confidence: 99%

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A Novel Porous Activated Carbon Compound Prepared for Adsorption of Cobalt (Co (Ii)) From Aqueous Solution for Environmental Pollution Mitigation

Kamble¹,

Landge²,

Lande³

et al. 2019

RJC

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The eco-friendly and sustainable technique was developed to resolve the problem of heavy metal pollution. In the present study, the removal of cobalt (Co (II)) was carried out using the activated carbon (AC). Activated carbon compound was prepared using selected plants such as Ficus benghalensis (FB), Mangifera indica (MI), Tamarindus indica (TI), Azadirachta indica (AI) and Syzygium cumini (SC). The characterization of the products was done by using the scanning electronic microscope (SEM) in order to know the microstructure of AC. It shows that prepared activated carbons (PACs) are porous in nature having the elevated surface area for effective adsorption and applicable for the mitigation of heavy metals. The study involves the effect of dose, concentration and contact time for removal of Co (II) and to assess the efficiency of PACs. The results reveal that the adsorption of Co (II) observed to be highest at 5g PAC-AI, PAC-MI and 6g for PAC-TI, PAC-FB, PAC-SC dose, respectively. Maximum adsorption was exhibited in a solution containing 25 mg/L concentration of Co (II) after addition of a mixed dose of PACs. The comparable adsorption was observed at contact time for PAC-AI, PAC-TI, PAC-FB, PAC-SC at 120 minutes and PAC-MI for 30 minutes respectively. Moreover, it is a need for continuous monitoring and further research for the development of an eco-friendly and advanced method to remove heavy metals.

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Section: Effect Of Contact Time On Adsorption Of Co (Ii)contrasting

confidence: 43%

Section: Effect Of Contact Time On Adsorption Of Co (Ii)mentioning

confidence: 99%

mentioning

confidence: 99%

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A Novel Porous Activated Carbon Compound Prepared for Adsorption of Cobalt (Co (Ii)) From Aqueous Solution for Environmental Pollution Mitigation

Kamble¹,

Landge²,

Lande³

et al. 2019

RJC

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“…The adsorbent was then aminated with dimethylamine. The procedures used are similar to those earlier reported [19]. The prepared sample was called Modified tea leaves (MTL).…”

Section: Adsorbent Chemicals Reagents and Instrumentationsmentioning

confidence: 99%

Adsorptive Removal of Heavy Metals from Aqueous Solution with Environmental Friendly Material—Exhausted Tea Leaves

Shrestha¹,

Kour²,

Ghimire³

2016

ACES

Self Cite

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In this study adsorptive removal of Pb(II) and Cu(II) from aqueous solution by using environmental friendly natural polymers present in exhausted tea leaves has been studied. The biosorbent was modified with dimethylamine to introduce N-functional groups on the surface of adsorbent. The modified adsorbent was characterized by elemental analysis, zeta potential analysis, SEM, DRFTIR, XRD and TG/DTA analysis to conform the modification. Adsorption capacity of the adsorbent was determined as the function of pH of the solution, initial concentration of the solution and contact time. The adsorption experiments were performed using batch experiments. The maximum adsorption capacities of the adsorbent were found to be 91.68 and 71.20 mg/g for Pb(II) and Cu(II), respectively. To minimize the process cost, regeneration of the biosorbent and recovery of metal ions was explored by desorption study. The results indicate that the adsorbent holds great potential for the sequestration of Pb(II) and Cu(II) from their aqueous solution. Hence the modified exhausted tea leaves (MTL) have been investigated as a new cost effective and efficient biosorbent for removal of Pb(II) and Cu(II) from their aqueous solution.

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An Eco-Friendly Alternative Biosorption of Heavy Metal Removal from Industrial Wastewater: Characterization and Application

Marzougui

Damak

Chaâri

et al. 2021

Recent Advances in Environmental Science From the Euro-Mediterranean and Surrounding Regions (2nd Edition)

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Adsorptive Removal of Toxic Metal from Aqueous Solution by Using a Biowaste -Used Tea Leaves

Cited by 4 publications

References 16 publications

A Novel Porous Activated Carbon Compound Prepared for Adsorption of Cobalt (Co (Ii)) From Aqueous Solution for Environmental Pollution Mitigation

A Novel Porous Activated Carbon Compound Prepared for Adsorption of Cobalt (Co (Ii)) From Aqueous Solution for Environmental Pollution Mitigation

Adsorptive Removal of Heavy Metals from Aqueous Solution with Environmental Friendly Material—Exhausted Tea Leaves

An Eco-Friendly Alternative Biosorption of Heavy Metal Removal from Industrial Wastewater: Characterization and Application

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