TY - GEN
T1 - Electronic nose for water monitoring
T2 - 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2015
AU - Palasuek, Rotthaporn
AU - Seesa-Ard, Thara
AU - Kunarak, Chayanin
AU - Kerdcharoen, Teerakiat
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/8/17
Y1 - 2015/8/17
N2 - An electronic nose (e-nose) comprising a nonspecific sensor array based on metal oxide semiconductors was employed to monitor wastewater samples, collected various sources in Bangkok, i.e., Samsen canal, Nanglerng canal, Praemprachakorn canal and Sanseab canal for 6 weeks (from the end of March to the first week of July), and compared with the fresh water supply. It was found that our electronic nose can classify odor of wastewater and fresh water. Moreover the relationship between wastewater quality indicators, including BOD5, DO and pH, with odor measured by the e-nose was observed. The results have shown that BOD increases with the increasing ammonia concentration according to the oxygen demand for oxidization of ammonia. In addition, nitric acid that was produced by oxidization of ammonia leads to acidic water. Although more experiments to prove correlation between electronic nose sensor response and BOD5 value are required, this preliminary study has offered a new alternative for cheap and real-time water monitoring.
AB - An electronic nose (e-nose) comprising a nonspecific sensor array based on metal oxide semiconductors was employed to monitor wastewater samples, collected various sources in Bangkok, i.e., Samsen canal, Nanglerng canal, Praemprachakorn canal and Sanseab canal for 6 weeks (from the end of March to the first week of July), and compared with the fresh water supply. It was found that our electronic nose can classify odor of wastewater and fresh water. Moreover the relationship between wastewater quality indicators, including BOD5, DO and pH, with odor measured by the e-nose was observed. The results have shown that BOD increases with the increasing ammonia concentration according to the oxygen demand for oxidization of ammonia. In addition, nitric acid that was produced by oxidization of ammonia leads to acidic water. Although more experiments to prove correlation between electronic nose sensor response and BOD5 value are required, this preliminary study has offered a new alternative for cheap and real-time water monitoring.
KW - BOD
KW - Electronic nose
KW - Principal component analysis (PCA)
KW - Wastewater
UR - https://www.scopus.com/pages/publications/84957011441
U2 - 10.1109/ECTICon.2015.7206961
DO - 10.1109/ECTICon.2015.7206961
M3 - Conference contribution
AN - SCOPUS:84957011441
T3 - ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology
BT - ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 24 June 2015 through 27 June 2015
ER -