The Effect of Zeolite-Gravel Mixtures on the Concentration of Leachate

Overview

Research was done 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 amount of percent transmittance would increase for the post-treated solution. Treatment was done 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.

Competition history

• AJAS 2017 Category not listed

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