Title

Evaluating The Efficiency Of Banana Peels As A Source Of Removing Methylene Blue Dye From Water.

Author(s)

Hosam Arammash

School Name

Spring Valley High School

Grade Level

10th Grade

Presentation Topic

Environmental Science

Presentation Type

Mentored

Mentor

Mentor: Dr. Samuel Darko; Benedict College

Abstract

In this study, banana peels were examined as a source of removing methylene blue, a commercial dye, from water. The banana peels were cut into small pieces and then dried in an oven at 120°C for 13 hours. Once dried the banana peels were removed and ground; half were ground using a coffee grinder and the other half with a ball mill. The coffee ground banana peels were taken and HTC (Hydrothermal Carbonization) was applied one with green tea extract as the solvent and the other with water as the solvent. For the ball mill the same processes was repeated. The banana peel samples were then run through a sieve to obtain four particle sizes, 250, 125, 63, and <63µm. For this study only 250 and 125µm were studied. To obtain the contaminant, 0.01 grams of methylene blue was diluted in one liter of water. For each trial only 100 mL of the solution was used, as well as 1 gram of the banana peel sample. It was hypothesized that the HTC (Green Tea) Ball mill would have the largest average mean and have a significant difference from the other samples. A UV-VIS was used to measure percent transmittance which was then used to calculate percent removal. After comparing the average means, the HTC(Green Tea) Ball mill had the highest percent removal of methylene blue. However, a one-way ANOVA showed that HTC (Green Tea) Ball mill had a significant difference from all the samples except two (HTC (Green Tea) Coffee ground 125µm/250µm). The hypothesis was partially supported with the HTC (Green Tea) Ball mill having the highest percent removal, but it was not significantly different from all other samples. /

Location

Owens 208

Start Date

4-16-2016 9:45 AM

COinS
 
Apr 16th, 9:45 AM

Evaluating The Efficiency Of Banana Peels As A Source Of Removing Methylene Blue Dye From Water.

Owens 208

In this study, banana peels were examined as a source of removing methylene blue, a commercial dye, from water. The banana peels were cut into small pieces and then dried in an oven at 120°C for 13 hours. Once dried the banana peels were removed and ground; half were ground using a coffee grinder and the other half with a ball mill. The coffee ground banana peels were taken and HTC (Hydrothermal Carbonization) was applied one with green tea extract as the solvent and the other with water as the solvent. For the ball mill the same processes was repeated. The banana peel samples were then run through a sieve to obtain four particle sizes, 250, 125, 63, and <63µm. For this study only 250 and 125µm were studied. To obtain the contaminant, 0.01 grams of methylene blue was diluted in one liter of water. For each trial only 100 mL of the solution was used, as well as 1 gram of the banana peel sample. It was hypothesized that the HTC (Green Tea) Ball mill would have the largest average mean and have a significant difference from the other samples. A UV-VIS was used to measure percent transmittance which was then used to calculate percent removal. After comparing the average means, the HTC(Green Tea) Ball mill had the highest percent removal of methylene blue. However, a one-way ANOVA showed that HTC (Green Tea) Ball mill had a significant difference from all the samples except two (HTC (Green Tea) Coffee ground 125µm/250µm). The hypothesis was partially supported with the HTC (Green Tea) Ball mill having the highest percent removal, but it was not significantly different from all other samples. /