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Effects of Water Temperature and pH on Water Quality Improvement by a Mixture of Beneficial Microorganisms
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수온과 pH가 복합유용미생물의 수질정화능에 미치는 영향

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Type
Academic journal
Author
Myeong-ryul Kwak (금오공과대학교) Wontae Lee (금오공과대학교)
Journal
Korean Society Of Environmental Engineers Journal of Korean Society of Environmental Engineers Vol.40 No.1 KCI Accredited Journals
Published
2018.1
Pages
1 - 6 (6page)

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Effects of Water Temperature and pH on Water Quality Improvement by a Mixture of Beneficial Microorganisms
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Research history (2)

2018

Effects of Water Temperature and pH on Water Quality Improvement by a Mixture of Beneficial Microorganisms
Myeong- ,  yul Kwak ,  Wontae Lee Journal of Korean Society of Environmental Engineers 2018.01 Academic journal

2017

곽명률 환경공학과 2017.01 Thesis
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Abstract· Keywords

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We investigated effects of water temperature and pH on degradation of organics, nutrients and heavy metals by a mixture of microorganisms, also known as beneficial microorganisms (BM), to assure operating parameters for the water quality improvement of rivers and streams. Water and sediment samples were obtained from Icheon Stream in Seongju, Korean, and experiments were conducted over five days after injection of BM to the samples. Degradation rates of organics by BM evidently decreased at 10℃ comparing with 15-25℃, which implied this biological approach could be hard to apply at lower temperature. Degradation rates of organics by BM did not show distinct difference at pH 7-8. Nitrification was 10-20% slower at lower temperature (10℃) than 25℃; degradation of heavy metals by BM was minimal except for Zinc which degraded about 75% over five days. Organics and heavy metals in the sediments hardly degraded over five days. Among microbial communities Proteobacteria increased, but Actinobacteria decreased. Proteobacteria include nitrifying species, and Actinobacteria can produce Geosmin.
#Beneficial Microorganisms (BM) #Water Quality Improvement #Natural Organic Matters (NOM) #Nutrients #Microbial Community #복합유용미생물 #수질정화 #천연유기물 #영양염류 #미생물군집

Contents

Abstract
요약
1. 서론
2. 연구방법
3. 결과 및 고찰
4. 결론
References

References (20)

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Eom, T. K. and Han, D. Y., “Removal Characteristics of Organics, Nitrogen and Phosphorus According to Each HRT of Sequencing Batch Reactor Using Bacillus sp.,” J. Water Treat., 13(3), 21~29(2005). Kim, H. S., Park, S. J., Jeong, W. H. and Lee, S. S., “The Study on the Effect of Efficient Microorganism for Early Stabilization of the Burial Sites,” The Korean J. Microbiol., 49(4), 343~352(2013). Chung, J. B., Kim, B. J. and Kim, J. K., “Water Pollution in Some Agricultural Areas along Nakdong River,” The Korean Soc. Environ. Agric., 16(2), 187~192(1997). Han, K. W., Cho, J. Y. and Kim, S. J., “Effects of Farming on Soil Contamination and Water Quality in Keum River Districts,” The Korean Soc. Environ. Agric., 16(1), 19~24(1997). Jung, Y. S., Yang, J. E., Joo, Y. K., Lee, J. Y., Park, Y. S., Choi, M. H. and Choi, S. C., “Water Quality of Streams and Agricultural Wells Related to Different Agricultural Practices in Small Catchments of the Han River Basin,” The Korean Soc. Environ. Agric., 16(2), 199~205(1997).

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