Preliminary study on the removal of copper and nickel from wastewater using sulfuric acid-treated coconut coir

Date

4-1993

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Lilia S. P. Madamba

Abstract

Coconut coir treated with sulfuric acid was used to remove copper and nickel from two wastewater samples collected from two metal industries. The cation-exchange capacity of treated coconut coir (TCC) was 2.37 meq per gram after shaking for twelve hours, and 2.57 meq per gram after shaking for thirty-six hours. The degree of removal of copper and nickel from the wastewater varied with reaction time and amount of TCC. Percent removal of copper was highest at 64.12% when 1.00 g TCC was shaken with 100 mL wastewater for 36 hours. On the other hand. decrease in concentration of nickel in the TCC-treated wastewaters was minimal. The presence of higher amounts of other cations (Na. K. Ca and Mg) influenced the copper and nickel uptake of TCC. Although the percent removal of copper and nickel from their respective solutions was generally high at 86.00% and 67.35% after 12 hours, removal from wastewaters were generally low. The predominant cations were prefentially taken up by TCC compared to copper and nickel which were present in smaller amounts. It appears that although cation-exchange process was involved, other physical processes such as adsorption may be responsible for the uptake of cations by TCC.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1993 C4 M34

Document Type

Thesis

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