Universiti Teknologi Malaysia Institutional Repository

A BOD sensor using immobilized microbial consortium in alginate-based matrix for rapid detection of river water pollution

S., Hussin and A.K., Ismail and S., Shahir (2012) A BOD sensor using immobilized microbial consortium in alginate-based matrix for rapid detection of river water pollution. Jurnal Teknologi (Sciences and Engineering), 59 (SUP. 1). pp. 37-41. ISSN 0127-9696

Full text not available from this repository.

Abstract

The development of a rapid sensor for Biochemical Oxygen Demand (BOD) is important for rapid determination of the degree of pollution in river water. A short-term BOD (BODst) has been developed using a consortium of locally isolated bacteria as the sensing element. YSI 52 Dissolved Oxygen Meter has been used to measure the oxygen uptake in the test solutions. Of the three alginate-based matrices, namely calcium alginate, calcium alginate-gluteraldehyde and polyvinyl alcohol-sodium alginate (PVA-SA), calcium alginate-gluteraldehyde was found to be the best microbial immobilization method. Typical response time of the developed BODst sensor was 8 minutes, and the immobilized microorganisms were suitable for single use. BOD response was observed at 37°C and pH7.0. For river waters, the BOD values estimated by the BODst biosensor correlated well with those determined by conventional BOD5 test using artificial wastewater (AWW) as the calibration solution.

Item Type:Article
Uncontrolled Keywords:Sciences and engineering
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Science
ID Code:46468
Deposited By: Haliza Zainal
Deposited On:22 Jun 2015 05:56
Last Modified:01 Nov 2017 04:17

Repository Staff Only: item control page