Removal of Iron (II) ions from wastewater using Black, Green and White Tea waste

dc.contributor.authorKarambizi Gihozo, Kellia
dc.date.accessioned2022-05-16T14:27:28Z
dc.date.available2022-05-16T14:27:28Z
dc.date.issued2022-05-16
dc.description54 pages; illustrationsen_US
dc.descriptionIncludes bibliographical references (leaves 39-41).
dc.description.abstractDue to their toxicity, heavy metal ion like Fe2+ are a category of contaminants that should be avoided in the aquatic environment. The necessity to develop a low-cost, efficient technology for removing heavy metals from water is inescapable. The purpose of this experiment was to determine the adsorption efficiency and capacity of black, green and white Twinings tea waste in removing Fe2+(aq). The impact of changing several factors such as the starting concentration of Fe2+ in solution, the physical texture of the adsorbent used, and the contact duration was studied. Solutions were made in two categories: sonicated and non-sonicated. Each category had a set of both fine and regular tea leaves. Both sonicated and non-sonicated samples were made with increasing amounts of Fe2+(aq). All solutions were treated with 0.025 g of tea waste for 90 minutes. Both sonicated regular and fine black tea samples showed a high adsorption efficiency of 100% while the non-sonicated samples varied with 72.4% as the highest efficiency. Sonicated tea samples yielded a higher adsorption capacity of 4.5 mg/g compared to 3.5 mg/g of non-sonicated tea samples. Based on these calculated adsorption efficiencies and capacities, the experiment demonstrated that sonicated tea samples are the most effective at removing iron contamination in water. This study also showed black tea to be most efficient compared to green and white tea. However, further research is necessary to determine the most efficient tea between green and white tea.en_US
dc.description.tableofcontentsABSTRACT -- INTRODUCTION -- 1.1. Heavy Metal Water Pollution -- 1.2. Iron (II) (Fe2+) in Water -- 1.3. Tea and Tea Waste Composition -- 1.4. Molecular Operating Environment (MOE): Complex Formation -- 1.5. Previous Methods -- 1.6. Goals of the Study -- 1.7. Hypotheses -- 2. PROCEDURES -- 2.1. COMPUTATIONAL PROCEDURES -- 2.2. EXPERIMENTAL PROCEDURES -- 2.2.1. MATERIALS -- 2.2.2. INSTRUMENTATION -- 2.2.3 METHODS -- A. Sample Preparation -- B. UV-Vis Absorption Spectroscopy -- C. Vibrational Spectroscopy -- 3. RESULTS & DISCUSSION -- 3.1. MOE Calculations -- 3.2. UV-Vis Absorption Spectroscopy -- 3.3. Beer’s plot -- 3.4. Vibrational Spectroscopy -- 3.5. Adsorption efficiency (%) -- 4.6. Adsorption Capacity (mg/g) -- 3.7. Rwandan Black Tea -- 4. CONCLUSIONS -- 4.1. LIMITATIONS -- 4.2. FUTURE WORK -- 5. REFERENCES -- 5.1. APPENDICES
dc.identifier.citationKarambizi Gihozo, Kellia (2022, May 16), Removal of Iron (II) ions from wastewater using black, green and white tea waste. Retrieve from:en_US
dc.identifier.urihttps://digitalrepository.wheatoncollege.edu/handle/11040/32532
dc.language.isoen_USen_US
dc.publisherWheaton College. (Norton, Mass.)
dc.subjectUndergraduate research.
dc.subjectUndergraduate thesis.
dc.subject.lcshSewage—Purification—Heavy metals removal
dc.subject.lcshWater—Pollution
dc.subject.lcshUltraviolet-visible action spectroscopy
dc.titleRemoval of Iron (II) ions from wastewater using Black, Green and White Tea wasteen_US
dc.typeThesisen_US
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