Title

The Effect Of Zeolite-Gravel Mixtures On The Concentration Of Leachate /

Author(s)

Christopher Kong

School Name

Spring Valley High School

Grade Level

10th Grade

Presentation Topic

Chemistry

Presentation Type

Non-Mentored

Oral Presentation Award

1st Place

Written Paper Award

1st Place

Abstract

Over the years, continued production of waste in landfills has lead to detrimental effects on the environment. One of said effects was the creation of sludge-like wastewater that had accumulated at the bottom of landfills. Research was conducted to find a potential solution to treating the wastewater, otherwise as known as leachate, using zeolites, an aluminosilicate, crystalline structure, and gravel. The purpose of this experiment was to find whether combining zeolites and gravel into a mixture would treat and purify leachate effectively. It was hypothesized that as the zeolite ratio decreases, the percent transmittance would increase for the post-treated solution. Treatment was carried out by pouring a leachate solution, composed of distilled water, 28% ammonium hydroxide, 100% cuprous oxide powder, and 99% phenolphthalein powder through a zeolite-gravel mixture which was then tested to see how effective the treatment was. The results found that the control group (M = 6.751%, SD = 2.487%), the 100%-0% group (M = 19.670%, SD = 10.100%), the 75%-25% group (M = 16.630%, SD = 3.070%), and the 50%-50% group (M = 6.827%, SD = 1.700%) were statistically significant (F(3,93) = , p = <0.001). Scheffé test found that the test values for the control group (n = 30, M = 6.751%, SD =2.487%) and the 50%-50% group (n = 30, M = 6.827%, SD = 1.700%) had statistically significant differences between the 100%-0% group (n = 30, M = 19.67%, SD = 10.100%) and the 75%-25% group (n = 7, M = 16.630%, SD = 3.070%) for both the control and the 50%-50%. The hypothesis was not supported, but data indicates that a higher ratio of zeolite to gravel performed better compared to the other experimental groups. /

Location

Owens 101

Start Date

4-16-2016 10:45 AM

COinS
 
Apr 16th, 10:45 AM

The Effect Of Zeolite-Gravel Mixtures On The Concentration Of Leachate /

Owens 101

Over the years, continued production of waste in landfills has lead to detrimental effects on the environment. One of said effects was the creation of sludge-like wastewater that had accumulated at the bottom of landfills. Research was conducted to find a potential solution to treating the wastewater, otherwise as known as leachate, using zeolites, an aluminosilicate, crystalline structure, and gravel. The purpose of this experiment was to find whether combining zeolites and gravel into a mixture would treat and purify leachate effectively. It was hypothesized that as the zeolite ratio decreases, the percent transmittance would increase for the post-treated solution. Treatment was carried out by pouring a leachate solution, composed of distilled water, 28% ammonium hydroxide, 100% cuprous oxide powder, and 99% phenolphthalein powder through a zeolite-gravel mixture which was then tested to see how effective the treatment was. The results found that the control group (M = 6.751%, SD = 2.487%), the 100%-0% group (M = 19.670%, SD = 10.100%), the 75%-25% group (M = 16.630%, SD = 3.070%), and the 50%-50% group (M = 6.827%, SD = 1.700%) were statistically significant (F(3,93) = , p = <0.001). Scheffé test found that the test values for the control group (n = 30, M = 6.751%, SD =2.487%) and the 50%-50% group (n = 30, M = 6.827%, SD = 1.700%) had statistically significant differences between the 100%-0% group (n = 30, M = 19.67%, SD = 10.100%) and the 75%-25% group (n = 7, M = 16.630%, SD = 3.070%) for both the control and the 50%-50%. The hypothesis was not supported, but data indicates that a higher ratio of zeolite to gravel performed better compared to the other experimental groups. /