• Journal of Microbiology and Biotechnology
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• v.26 no.11
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• pp.1965-1971
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• 2016

Livestock wastewater containing high concentrations of ammonium and nitrate ions was pretreated with microbubbles and an Fe/MgO catalyst prior to its application in microbial fuel cells because high ion concentrations can interfere with current generation. Therefore, tests were designed to ascertain the effect of pretreatment on current generation. In initial tests, the optimal amount of catalyst was found to be 300 g/l. When 1,000 ml/min $O_2$ was used as the oxidant, the removal of ammonium- and nitrate-nitrogen was highest. After the operating parameters were optimized, the removal of ammonium and nitrate ions was quantified. The maximum ammonium removal was 32.8%, and nitrate was removed by up to 75.8% at a 500 g/l catalyst concentration over the course of the 2 h reaction time. The current was about 0.5 mA when livestock wastewater was used without pretreatment, whereas the current increased to $2.14{\pm}0.08mA$ when livestock wastewater was pretreated with the method described above. This finding demonstrates that a 4-fold increase in the current can be achieved when using pretreated livestock wastewater. The maximum power density and current density performance were $10.3W/m^3$ and $67.5W/m^3$, respectively, during the evaluation of the microbial fuel cells driven by pretreated livestock wastewater.

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 2001.11a
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• pp.90-90
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• 2001

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2003.10a
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• pp.177-177
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• 2003

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2003.10a
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• pp.179-179
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• 2003

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2003.10a
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• pp.196-196
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• 2003

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2004.11a
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• pp.131-131
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• 2004

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2004.11a
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• pp.108-109
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• 2004

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2004.11a
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• pp.112-112
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• 2004

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2001.10b
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• pp.194-194
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• 2001

• Journal of Environmental Science International
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• v.14 no.4
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• pp.445-449
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• 2005

A simple and sensitive analytical method based on RP-HPLC with UV detector$(225{\cal}nm)$ and mobile phases using $0.1{\%}$ phosphoric acid and acetonitrile was developed for simultaneous determination of quinclorac, bentazone, 2,4-D, bensulfuron-methyl, dymuron, capropamide, pencycuron, ethofenprox. This method was resulted in recovery of $78{\~}96{\%}$ with RSD $3.3{\~}7.5{\%}$, LODs $0.12{\~}0.84$ and LOQs $0.34{\~}1.20{\cal}mg/L$. Calibration curves were linear with r of $0.9995{\~}0.9999$.