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- E-ISSN 2288-8985
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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,
M., Kim,
E., Jang,
S., &
Hong,
D.
(1994). Development of Assembly for Fast BOD Estimation and Its Applications. Analytical Science and Technology, 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 <TEX>$32{\sim}33^{\circ}C$</TEX>, respectively. The best result was obtained at 2~3ml/min flow rate in 0.1M phosphate buffer solution. A linear relationship was observed between <TEX>${\Delta}DO$</TEX> and the concentration of standard GGA solution below 60mg/l(90ppm <TEX>$BOD_5$</TEX>). 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 <TEX>$BOD_5$</TEX> method.
- keywords
- Microbial BOD sensor
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