Optimization of Ethanol Yield and Adsorption of Heavy Metal Ions of

Mango and Banana Peels by Varying Procedures

Kara Newman & Aman Mangalmurti

Problem

Large quantities of hazardous heavy metals in water systems of developing areas

Depletion of fossil fuels & other non-renewable resources

Large amounts of mango and banana fruit waste

Goals For Research

Find sustainable

energy source

Remove heavy

metals from drinking water

Utilize fruit waste

Experimental Goals

Determine the efficiency of ion adsorption as well as ethanol production

Effect of ion adsorption on ethanol yield

Effect of ethanol production on ion adsorption

Compare the results of ethanol yield and ion adsorption between fruits

Method

HCI-AOS CollaborationSplit Between Fruit Tested

Banana

Mango

Adsorption of Ions

Extraction of sugars

Ethanol Fermentation

Extraction of sugars

Ethanol Fermentation

Residue for Adsorption of Ions

Progress

Lead Standard Curve Data

Data Collected

Lead Standard Curve Data

Concentration of Lead(II)Nitrate (ppm)

Transmittance (%)

1.1 8.4

2.8 48.2

5.2 33.8

8.3 46.9

Data Analysis

Beer’s Law – Linear Regression

0 1 2 3 4 5 6 7 8 90

10

20

30

40

50

60

Concentration vs. Transmittance

Concentration Pb2NO3 (ppm)

Tran

smitt

ance

(%

)

Looking ForwardMaterial AcquisitionData Collection

Adsorption –

Ethanol yield –

Data Analysis

Bibliography

Bibliography (Continued)