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REMOVAL AND RECOVERY OF BORON FROM PRODUCED WATER BY ELECTROCOAGULATION AND HYDROTHERMAL MINERALIZATION

EZECHI, EZERIE HENRY (2013) REMOVAL AND RECOVERY OF BORON FROM PRODUCED WATER BY ELECTROCOAGULATION AND HYDROTHERMAL MINERALIZATION. Masters thesis, Universiti Teknologi PETRONAS.

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Abstract

Produced water is the largest wastestream of oil and gas exploration and a major supplement to the increased limited freshwater supply. It is therefore necessary to ensure that the quality of produced water meets the appropriate standard for use as potable water. This study investigated the removal and recovery of boron from produced water by electrocoagulation and hydrothermal mineralization. The efficiency of the study was investigated in both the batch and continuous mode using aluminum and iron electrodes. Preliminary studies were conducted with synthetic wastewater and the obtained optimum conditions applied to produced water. Different operating parameters were investigated. They include pH, current density, initial concentration, electrolysis time, inter-electrode spacing, flow rate, retention time. pH played a significant role in removal efficiency with the best removal efficiency around pH 7 for both electrodes. Increase in current density also increased removal efficiency. When the initial concentration was increased, removal efficiency decreased. Increase in electrolysis time increased removal efficiency. However, when the spacing between electrodes was increased, removal efficiency decreased. The removal efficiency decreased when the flowrate was increased. Increase in retention time also resulted in increase in removal efficiency. A removal efficiency of 98% and 88% were observed for the batch and continuous mode study respectively using aluminum electrode while a removal efficiency of 97% and 78% were observed for the batch and continuous mode study, respectively using iron electrode.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Civil Engineering - Water and environment - Environmental - Wastewater treatment
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 30 Mar 2015 11:56
Last Modified: 25 Jan 2017 09:39
URI: http://utpedia.utp.edu.my/id/eprint/15289

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