Development of Assembly for Fast BOD Estimation and Its Applications

Soon, Moo-Jeong; 손무정; Kim, Eun-Jeong; 김은정; Jang, Seh-Yong; 장세용; Hong, Daeil; 홍대일

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.7, No.3

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Development of Assembly for Fast BOD Estimation and Its Applications

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

1994, v.7 no.3, pp.285-291

Soon, Moo-Jeong
Kim, Eun-Jeong
Jang, Seh-Yong
Hong, Daeil

Soon, M., Kim, E., Jang, S., & Hong, D. (1994). Development of Assembly for Fast BOD Estimation and Its Applications. , 7(3), 285-291.

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Abstract

A microbial BOD sensor for the continuous estimation of BOD was been developed by immobilizing Trichosporon cutaneum, which was immobilized between a dialysis and a gas-permeable membrane, on an oxygen electrode. The optimum pH and temperature for BOD measurement using this sensor were pH 7.0 and $32{\sim}33^{\circ}C$, respectively. The best result was obtained at 2~3ml/min flow rate in 0.1M phosphate buffer solution. A linear relationship was observed between ${\Delta}DO$ and the concentration of standard GGA solution below 60mg/l(90ppm $BOD_5$). The reproducibility was found to be within 3% for the standard solution containing glucose 30mg/l and glutamic acid 30mg/l. The output DO value of this sensor was almost constant for 30 dalys. The response time and the recovery time were about 5 and 10 min, respectively. This sensor was employed for the BOD measurement of waste pollutants and was compared with $BOD_5$ method.