Column performance of granular activated carbon packed bed for Pb(II) removal

Dwivedi, Chandra P.; Sahu, J.N.; Mohanty, Chitta Ranjan; Mohan, B. Raj; Meikap, B.C.

doi:10.1016/j.jhazmat.2007.12.097

Cited by 150 publications

(57 citation statements)

References 22 publications

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“…Similarly, It was also confirmed that the dominant Cu (II) species exist below such pH is Cu 2+ and mainly involved in adsorption process [21]. It was also observed that the PAC was better than GAC in terms of the metal adsorption capacity, q, due to its larger pores and faster adsorption rate [8]. The larger pores of PAC allow by entrance additional removal of these metals from their aqueous phase to take place.…”

Section: B Effect Of Phmentioning

confidence: 60%

“…These materials are black and solid carbonaceous substances, and have porosity, internal surface area of more than 400 m 2 /g and relatively high mechanical strength [8]. Most of the activated carbon product especially developed from agricultural by-products such as fruit stones [9], cocnut shell [10], olive stones and walnut shells [11] and tea wastes [12] are inexpensive adsorbents and easily available.…”

Section: Introductionmentioning

confidence: 99%

“…GAC is usually have larger internal surface area and smaller internal pores of those in PAC. However, the last is characterized with a faster adsorption rate [8].…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Pb (II) and Cu (II) from Aqueous Solution onto Activated Carbon Prepared from Dates Stones

Abudaia¹,

Sulyman²,

Elazaby³

et al. 2013

IJESD

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Abstract-Potentially toxic trace elements such as Lead Pb(II) and Copper Cu (II), with high levels in water are very serious problem in many places around the world, sometimes in relation to natural sources and in other cases to anthropogenic ones. Adsorption process is among the most effective techniques for removing of many heavy metal (HM) ions from different types of water. In this study, an attempt has been made to investigate the efficiency of granular activated carbon (GAC) and powder activated carbon (PAC) obtained from easy available agricultural by-products dates stones (DS) in removing of Pb (II), Cu (II) from their aqueous solutions using batch mode technique. During the removal process, the effects of solution pH, HM concentrations and contact time, and adsorbent concentration, on adsorption efficiency by both GAC & PAC were studied. Under the experimental conditions, the removal efficiency of such metals by PAC was 83%, 91% showing preference over GAC which had a removal efficiency of 76%, 82% respectively. Index Terms-Activated carbon, date stones, heavy metals, batch mode technique, adsorption.

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Section: B Effect Of Phmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

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Adsorption of Pb (II) and Cu (II) from Aqueous Solution onto Activated Carbon Prepared from Dates Stones

Abudaia¹,

Sulyman²,

Elazaby³

et al. 2013

IJESD

View full text Add to dashboard Cite

show abstract

“…Activated carbons can be prepared by either a physical method or chemical method [8]. It is produced from a large number of carbonaceous raw materials like coal, lignite, wood and some agricultural product like rice husk [9,10], nut shell [11], coconut shell [12,13], pea nut [14,15], sugarcane bagassage [16], tamarind wood [17], saw dust [18] and industrial waste products. The cost of Agricultural wastes are very low so it is considered to be a very important feedstock for preparation of AC [19].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Activated Carbon from Green Coconut Shell and its Characterization

Das¹,

Samal²,

Bc³

2015

J Chem Eng Process Technol

146

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In this work activated carbon was prepared from green coconut shells by chemical activation method. It was then characterized by XRD, SEM, FT-IR and TGA. Different physical properties such as bulk density, moisture content, volatile matter content, ash content, and surface area and porosity were also determined. The activated carbon was used as adsorbent for the removal of carbon dioxide from flue gas as well as various inorganic contaminants from waste water. Removal efficiency of Methylene blue was studied by changing various parameters such as adsorbent dosage and contact time. This study showed that for the removal of various pollutants from flue gas and waste water treatment activated carbon can be used as a good adsorbent.

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“…After the equilibrium is established, the same solution remains in the system. Therefore, the efficiency of the process decreases, the adsorbent may not be utilized effectively, the volume of the effluent treated decreases and the adsorption capacity decreases (Dwivedi et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Phenol from Aqueous Solution Using Lantana camara, Forest Waste: Packed Bed Studies and Prediction of Breakthrough Curves

Girish

Murty²

2015

Environ. Process.

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In this paper, the feasibility of the dry stem of Lantana camara waste as an adsorbent to remove phenol from aqueous solution was investigated in a packed-bed column. The effect of bed height (5, 10, 15 cm), initial phenol concentration (100, 150, 250 mg L ) on the adsorption were studied by evaluating the breakthrough curves. The following models were used to assess the column performance: Thomas, Adams-Bohart, Yoon Nelson, Modified dose-response, linear driving force model based on fluid phase concentration difference (LDFC) and linear driving force model based on particle phase concentration difference (LDFQ). The Thomas model and the LDFC model were in good agreement with the experimental data. The bed depth service time (BDST) model was used to predict adsorption performance at other experimental conditions. The maximum adsorption capacity was found to be 149.77 mg g −1 , confirming that Lantana camara is a suitable adsorbent for the removal of phenol from aqueous solution.

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Column performance of granular activated carbon packed bed for Pb(II) removal

Cited by 150 publications

References 22 publications

Adsorption of Pb (II) and Cu (II) from Aqueous Solution onto Activated Carbon Prepared from Dates Stones

Adsorption of Pb (II) and Cu (II) from Aqueous Solution onto Activated Carbon Prepared from Dates Stones

Preparation of Activated Carbon from Green Coconut Shell and its Characterization

Adsorption of Phenol from Aqueous Solution Using Lantana camara, Forest Waste: Packed Bed Studies and Prediction of Breakthrough Curves

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