KUET Institutional Repository

Development of Sensor for Free Available Chlorine Estimation in Surface Water

Show simple item record

dc.contributor.advisor Jamal, Dr. A.B.M. Mamun
dc.contributor.author Islam, Md. Juel
dc.date.accessioned 2018-05-23T04:48:08Z
dc.date.available 2018-05-23T04:48:08Z
dc.date.copyright 2016
dc.date.issued 2016-08
dc.identifier.other ID 0000000
dc.identifier.uri http://hdl.handle.net/20.500.12228/165
dc.description This thesis is submitted to the Department of Chemistry, Khulna University of Engineering & Technology in partial fulfillment of the requirements for the degree of Master of Science in Chemistry, August 2016. en_US
dc.description Cataloged from PDF Version of Thesis.
dc.description Includes bibliographical references (pages 99-107)
dc.description.abstract The development of portable sensors that can be used outside the lab is an active area of research in the electro analytical field. A major focus of such research is the development of low-cost electrodes for use in these sensors. Current electrodes, such as glassy carbon, platinum or gold electrodes, are costly and require time-consuming preparation. In this work an alternatives have been proposed, where pencil graphite electrodes (PGEs) has been used as sensing platform. Surface of pencil has been used to make it suitable for estimating free chlorine in water sample. Chlorine is a common disinfectant in the water industry, and the residual free chlorine concentration in water distributed to the consumers must be lower than the value set by the regulatory bodies. The pencil graphite-electrode shows high selectivity, low detection limit and linear response to free chlorine in the relevant concentration range at the applied potential of 1.5V and no response to commonly interfering ions such as NO3 -, SO4 2-, CO3 2-, Cl-, HCO3 - has been observed. Further investigation has been conducted on the storage stability and response time on FAC sensing. The sensitivity of free chlorine has been found to be 50μAmM-1cm-2. The pencil graphite electrodes were also used for detection of chlorine with a relatively wide concentrations ranging up to 8 mM, with a limit of detection of 46 μM. It exposes that the stability of PGEs 97.93% after 14 days of its initial activity. This sensor is being proposed as a low cost device for determining free chlorine in water samples with short response time of t90 less than 5 sec. en_US
dc.description.statementofresponsibility Md. Juel Islam
dc.format.extent 107 pages
dc.language.iso en_US en_US
dc.publisher Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh en_US
dc.rights Khulna University of Engineering & Technology (KUET) thesis/dissertation/internship reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Surface Water en_US
dc.subject Chlorine Sensor
dc.subject Electrodes
dc.subject Free Available Chlorine (FAC)
dc.title Development of Sensor for Free Available Chlorine Estimation in Surface Water en_US
dc.type Thesis en_US
dc.description.degree Master of Science in Chemistry
dc.contributor.department Department of Chemistry


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search KUET IR


Advanced Search

Browse

My Account

Statistics