REMOVAL OF ANTIBIOTIC FROM WASTEWATER BY ADSORPTION

BY KALAIVANAN.P

CE16SFP0576

KALASALINGAM UNIVERSITY,

MADURAI, TAMILNADU

Guide Dr.S.Mathava Kumar

ASSISTANT PROFESSOREWRE DIVISION

DEPARTMENT OF CIVIL ENGINEERING

IIT MADRAS

CONTENT

INTRODUCTION

OBJECTIVE AND STUDY

ANTIBIOTIC

ADSORPTION

MATERIALS AND METHODS

RESULT

CONCLUSION

INTRODUCTION

Antibiotics are prescribed for the treatment of an infection caused by bacteria, fungi and parasites

Kill bacteria by destroy the structure of their DNA Antibiotic -Metronidazole (MET).cause -vomiting, fever, joints pain..etc.Antibiotic cause problem in environment and human life.

OBJECTIVES AND STUDY

Remove MET from aqueous system by means of adsorption process.

Efficiency of the adsorbents in removing MET. Effect of -pH and contact time. Removal of MET using. PAC TiO2

Concrete contain graphene

Three of the primary sources of antibiotics entering the environment Medicine Agriculture (both livestock and produce). Pharmaceutical processing plants dumping drugs

into wastewater.

ADSORPTION

Adsorption is physico-chemical method is an attractive and effective method for antibiotic removal .

MECHANISM OF ADSORPTION

Bulk solution transport

Film diffusion

Pore diffusion

Attachment of molecules

MATERIALS AND METHODS

Materials Powdered Activated Carbon (PAC) Titanium oxide (TiO2) Graphene Coated Concrete

Method Adsorption Centrifuge HPLC (High Performance Liquid

Chromatography )

Kinetic studies

It is used to find out Equilibrium time.

stock solution - 100 mg/LMET concentration i.e. 10 mg/L .

Adsorbent o Concrete Contain Graphene (1g/L, 10g/L ,20g/L)o PAC (1g/L)o TiO2 (1g/L) .

Sample and centrifuge

Equilibrium study

Adsorption Isotherm is used to find the maximum adsorption capacity

o Langmuir isotherm o Freundlich isotherm

MET Concentration varied 1,5, 10, 25, 50, 100 mg/L

Adsorbent dose: PAC:1 g/L, Concrete containing graphene: 10g/L

Kinetic study -Concrete

0 10 20 30 40 50 60 700

2

4

6

8

10

Concrete (1g/L)

Time, h

conc

,mg/

L

0 6 12 18 24 30 36 42 48 54 60 66 720

2

4

6

8

10

Concrete (10g/L)

Time, h

conc

,mg/

L

0 6 12 18 24 30 36 42 48 54 60 66 720123456789

10

Concrete (20g/L)

Series1

time,h

cong

,mg/

L

Kinetic study of PAC and TiO2

0 6 12 18 24 30 36 42 48 54 60 66 720

2

4

6

8

10

PAC

Time, h

Con

c, m

g/L

0 6 12 18 24 30 36 42 48 54 60 66 720123456789

10TiO2

Time,hC

onc,

mg/

L

Equilibrium study for PAC

0 0.05 0.1 0.15 0.2 0.25 0.30

2

4

6

8

10

12

f(x) = 44.9682336857175 x − 0.294636941412129R² = 0.985047254821143

Langmuir

1/Ce

1/qe

1 1.5 2 2.5 3 3.5 4 4.5 5-3

-2.5

-2

-1.5

-1

-0.5

0

0.5

1

f(x) = 1.01973218725823 x − 3.74916771943673R² = 0.995004317036003

Freundlich

ln Ce

ln q

e

PAC and CONCRETE The maximum adsorption capacity of PAC and

graphene coated concrete for MET removal was 3.48 mg/g and 0.18 mg/g

PAC has shown nearly 98% removal (from 10 mg/L to 0.02 mg/L) with in 1 hr

Concrete with a dosage of 1, 10 and 20 g/L as shown of MET removal of 13.5, 15.5 and 19.7%, respectively

CONCLUSION

PAC fit in to Freundlich isotherm Its is a good adsorbent to remove MET from

wastewater PAC is multi pollutant adsorbent Some of new adsorbent can be under go kinetic

study and isotherm

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