Adsorption of copper (II) ions from semiconductor wastewater using soursop (Annona Muricata) seed as absorbent.

Date

3-2012

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Fortela, Dhan Lord B.

Committee Member

Alfafara, Catalino G.

Abstract

Heavy metal contamination, like copper, was one of the major factors why the quality of water was reduced. There were different conventional methods which could eliminate this heavy metal however, it was very expensive. In result, increase in use of other alternatives was taken into consideration. Batch adsorption was employed in the study. The adsorption capacity of soursop seeds was studied and it was observed that it has a removal efficiency of -1.59%, 13.05% and 24.71% for pH levels 1, 3 and 5 respectively at an equilibrium time of 50 minutes. The removal efficiency was -1.59%, -1.39% and - 0.89% for adsorbent dosages 1.0g, 1.5g and 2.0g respectively at an equilibrium time of 50 minutes. The residual ions were measured using Atomic Absorption Spectrophotometry (AAS). Adsorption isotherms were constructed and it was observed that the system greatly conforms to the Freundlich Model which has an R2 value of 0.8982. Statistical analysis was also employed such as one way analysis of variance and Fisher’s Exact Test. The maximum percent removal of copper would be 24.71% at a pH level of 5, adsorbent dosage of 1.0g with an equilibrium time of 50 minutes.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

Thesis

Document Type

Thesis

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