Date of Award

2018

Degree Type

Thesis

Degree Name

Master of Science in Environmental Engineering

Department

Civil and Environmental Engineering

First Advisor

Hung, Yung-Tse

Subject Headings

Environmental Engineering

Abstract

Pollution of the waterways is a great challenge of the 21st century. Textile effluents contain compounds which have the capacity to cause more harm when ingested. There are many dye removal technologies like coagulation, photo oxidation which help to remove color from dye wastewater. The use of adsorption to remove color from dye wastewater has been used for many centuries. Activated carbon can efficiently remove color from dye wastewater but it is very expensive and so different researches have been conducted to get the adsorption capacity of different forms of adsorbents. These adsorbents can be gotten from agricultural waste, biomass, and industrial waste and even household materials like paper. In this research, agricultural adsorbents like orange peel, banana peel and onion peel are being used as adsorbents to treat dyes like Acid red 88, Direct blue 15 and Rhodamine 6G. The amount of adsorbent dose and dye concentration is being varied to know at what dye concentration or adsorbent dose effectively removes color from dye wastewater. In this study, the treatment of a binary mixture of dye wastewater with fruit drink of different concentrations, low (10ppm), medium (50ppm) and high (100ppm). The dye waste water was prepared in the laboratory while the fruit drink was bought from a local grocery store. Color removal efficiency was investigated for the three adsorbents; orange peel, banana peel, onion peel. Transmittance and Absorbance values were used to determine the removal efficiency of the adsorption process

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