PENGARUH KECEPATAN PENGADUKAN DAN BERAT ADSORBEN AMPAS TAHU TERHADAP PENURUNAN KADARLOGAM BESI (Fe) PADA AIR LINDI

PRADITA, WINDY AULIA, A2A014028 (2018) PENGARUH KECEPATAN PENGADUKAN DAN BERAT ADSORBEN AMPAS TAHU TERHADAP PENURUNAN KADARLOGAM BESI (Fe) PADA AIR LINDI. Sarjana / Sarjana Terapan (S1/D4) thesis, ["eprint_fieldopt_institution_Universitas Muhammadiyah Semarang" not defined].

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Abstract

Background: Leachate is a toxic liquid formed from landfill with high organic content and also metal elements. One of the metal elements contained in leachate is iron (Fe) metal. Leachate treatment can be done by the adsorption process. The absorbent material that can be used is tofu. The aim of this study was to The Influence Of Stirring Speed And The Absorbden Weight Of Tofu Waste To The Impact On The Reduction Of Iron (Fe) Metal Levels On Leachate. Method: The type of research used is True Experiment with Factorial Design. The object of the study is the leachate of the Kalikondang Demak landfill. The independent variable in this study was the stirring speed (70 rpm, 90 rpm and 110 rpm) and the weight of absorbden (800 mg, 1000 mg and 1200 mg). The dependent variable is the decrease in iron content. Three repetitions were carried out so that the number of observations was 30 samples consisting of 27 treatment samples and 3 control samples. Observations were analyzed using the Two Way Anova statistical test and LSD Post Hoc follow-up test. Results: The average of the iron content before treatment was 6.603 mg/l while the average iron content after treatment was 2.426 mg/l. The decreasing average in iron metal content was 3.766 mg / l (57.04%). There is an effect of stirring speed (p-value = 0.034) and weight of adsorbent (p-value = 0.001) to the decreasing iron content. There was no interaction effect between stirring speed and weight of adsorbent on decreasing iron content (p-value = 0.991). Conclusion: The optimum condition of tofu waste adsorbent in adsorbing iron metal in leachate water is at a stirring speed of 70 rpm with adsorbent weight of 1200 mg. Keywords: Adsorption, tofu waste, iron (Fe), leachate.

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