Removal of lead from surface water using different adsorben - PowerPoint Presentation

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Removal of lead from surface water using different adsorben - PPT Presentation

PREPARED UNDER THE GUIDANCE OF DR ARUN KUMAR ASSTT PROFESSOR IIT DELHI Prepared by Sachin Vishnoi 2014cev2927 Yogesh Gurnani 2014cev2928 Mohammed Mohsen BACKGROUND Lead is one of the highly toxic metal which poses threat to human health ID: 181693

lead removal adsorbents water removal lead water adsorbents waste research activated carbon rice surface adsorption cost husk paper fly

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Slide1

Removal of lead from surface water using different adsorbent materials

PREPARED UNDER THE GUIDANCE OFDR. ARUN KUMARASSTT. PROFESSOR IIT DELHI

Prepared by:

Sachin

Vishnoi

(2014cev2927)

Yogesh

Gurnani

(2014cev2928)

Mohammed

MohsenSlide2

BACKGROUNDLead is one of the highly toxic metal which poses threat to human health(Bailey et al., 1999; Gloaguen and Morvan, 1997a).

Lead is generally removed by precipitation, adsorption and ion exchange methods etc.Precipitation process is usually not sufficient for removal of lead from waste water upto permissible limits (Maruyama et al.,1975).Adsorption is efficiently used to remove lead from waste water (M. K. Mondal, IIT BHU)A number of researchers have used different materials as adsorbents for Pb(II) removal from water and waste water (Gupta et al., 2001; Sekar et al., 2004; Moufilh et al., 2005; Sabriye and Ali, 2006; Park et al.,Slide3

OBJECTIVETo bring down the concentration of lead from surface water below 0.1mg/L ( permissible limit as per CPCB)

To identify the mechanism involved in the removal of lead ions.To do the comparative study of various adsorbent materials for removal of lead from surface water.To suggest the cost effective and most efficient adsorbent material.Slide4

METHODOLOGYResearch paper on bagasse fly ash from ref. 1.

Research paper on granulated activated carbon from ref. 2.Research paper on activated tea waste from ref 3.Research paper on rice husk, maize cob, and saw dust from from ref. 4.Research paper on wheat bran from ref. 5Research paper on red mud from ref. 6Research paper on peat moss from ref. 7Research paper on carbon nano tubes from ref. 8Slide5

COMPARATIVE TABLE

Bagasse fly ashGranulated activated carbonActivated tea waste

Rice husk

Maize cob

Saw dust

Wheat bran

Red mud

Peat moss

Carbon

nano

tubes

Initial conc. Of

adsorbate

5 to 70 ppm

5to 10 mg/L

2 to 10 mg/L

ppm

25ppm

5 to 10 mg/L

5 to 10mg/L

mg/L

10mg/L

Working pH

5.8

6.5

Below 7

5.5 to 6

Temperature

(

to 39

-24

Equilibrium time

60min.

20hr.

7-10hr.

120min.

120

min

120

min

80 min

8 to 10hr.

2hr.

40min.

Adsorbent dose

10g/L

100mg

1g/100mL

2.5g

30.9g

0.05g

Bed height

0.3m to 0.5m

0.3 to

0 .4m

o.3m to

0.5m

0.15m

100mL

Tubes

Adsorption capacity(mg/g)

-------

99.48

23.95

18.58

46.81

88.2

76.7

17.5

Model

fitting

Freundlich

Langmuir

Bohart –Adam

Temkin

temkin

Freundlich & langmuir

Langmuir

freundlich

Freundlich

Langmuir

Efficiency

96 to 98%

Increased by 35%

99.5%

Upto 98.15%

Upto

78%

Upto

76%

93.62%

88.2%

95.5%

Upto

87.8%

Nature of reaction

Exothermic

Endothermic

exothermic

Endothermic

Exothermic

endothermic

Cost

$20 per ton

$308 per gm

$5 per kg

$500 per ton

$223 per ton

$5 per kg

$200 per tons

$2.36 per cuft

$500 per g

Competition

Sodium, potassium ions

conc.

cations

ions

Cationic surfacta-nts

Cations

CationsSlide6

Present status and future scopeAt present these adsorbents (Bagasse

fly ash, Granulated activated carbon, Activated tea waste, Rice husk, Maize cob, Saw dust, Wheat bran, Red mud, Peat moss, Carbon nanotubes) are being popularly used for removal of lead from surface water.Further research is going on to increase the removal efficiency of adsorbents and to decrease the cost of removal of lead from surface water.In future research can be done on many low cost adsorbents like maize cob , wheat bran, etc. agricultural products for the removal of lead from surface water as they are cheap in nature and effective.Slide7

Cost comparision of adsorbents

AdsorbentsCost of adsorbents per kgCost for removal of 100mg adsorbate/g of adsorbentBagasse fly ash$0.02$ 5/10000

Activated tea waste$51

$6375/10000

Rice husk

$0.5

$5/10000

Maize cob

$0.223

$9.3/10000

Saw dust

$3120/10000

Wheat bran

$0.2

$42700/10000Slide8

Result and discussionFrom above data we can find that cost of removal of lead from surface water by adsorbents bagasse

fly ash and rice husk is minimum.Efficiency of bagasse fly ash is 4mg/g and that of rice husk is 99.48mg/g of adsorbents.Removal efficiency of bagasse fly ash is 96 to 98% and that of rice husk is 98.15%.So rice husk may be the best alternative available at present among above adsorbents.Slide9

ReferencesV.K. Gupta a,

∗ and Imran Ali -Removal of lead from wastewater using bagasse fly ash—a sugar industry waste.Jyotsna Goel a,b, Krishna Kadirvelu a,∗, Chitra Rajagopal a,

Vinod Kumar Garg -Removal of lead(II) by adsorption using treated granular activated carbon: Batch and column studies.M.K.

Mondal

*Removal of

(II) ions from aqueous solution using activated tea waste: Adsorption on a fixed-bed column.

N. T. Abdel-

Ghani

, 2M.

Hefny

, 3*G. A. F. El-

Chaghaby

Removal of lead from aqueous solution using low cost abundantly available adsorbents.

Yasemin

Bulut

Zu¨beyde

Baysal

Removal of

(II) from wastewater using wheat bran.

VINOD K. GUPTA*, MONIKA GUPTA and SAURABH

SHARMADepartment

of Chemistry, University of

Roorkee

, Roorkee-247 667 UP, India process development for the removal of lead and chromium from aqueous solutions using red mud-an aluminium industry waste.

Akinbayo

Akinbiyi

Regina, Saskatchewan November, 2000 REMOVAL OF LEAD FROM AQUEOUS SOLUTIONS BY ADSORPTION USING PEAT MOSS.

Yan-

Hui

Li a,*,

Shuguang

Wang b,

Jinquan

Wei a,

Xianfeng

Zhang a,

Cailu

Zhaokun

Luan b,

Dehai

Wu a,

Bingqing

Wei c Lead adsorption on carbon

nanotubes

.Slide10

R.E. Clement, G.A. Eiceman, C.J. Koester, Anal. Chem. 67 (1995) 221R.

P. MacCarthy, R.W. Klusman, S.W. Cowling, J.A. Rice, Anal. Chem. 67 (1995) 525R.J.W. Moore, S. Ramamoorthy, Heavy Metals in Natural Waters: Applied Monitoring and Impact Assessment, Springer-Verlag,New York,1984.R. Leyva Ramos, L.A. Bernal Jacome, J. Mendoza Barron, L. Fuentes Rubio, R.M. Guerrero Coronado, J. Hazard. Mater. B 90 (2002) 27.Centeral pollution control boardC.H. Weng, C.P. Huang, J. Environ. Eng. 120 (1994) 1470

J.S. Mattson, H.B. Mark, Activated Carbon Surface Chemistry and Adsorption from Aqueous Solution, Dekker, New York, 1971.P.N. Cheremisinoff, F.

Ellerbush

, Carbon Adsorption Handbook, Ann

Arbor

Science Publishers, Ann

Arbor

, 1979.

V.K. Gupta, I. Ali, in: A. Hubbard (Ed.),

Encyclopedia

of Surface and Colloid Science, Dekker, New York, 2002, pp. 136–166.