Study on Activated Sludge Microorganisms of Northern Winter Sewage Treatment Plant

Abstract:

At the sewage temperatures of 7-15°C, it used biological video microscopy and scanning electron microscopy to detect activated sludge morphology, miniature animals and flora species in northern winter sewage treatment plant. The results showed that activated sludge had dense floc with sharp edge, and was bigger at the temperatures of 13 and 15°C than at the temperatures of 7, 9 and 11°C. When the autumn and winter seasons were alternate and the sewage temperature was instability, the edge of the floc was slightly fuzzy and there was a small amount of free bacteria in activated sludge floc. The study had also shown that the temperature was higher, the type of sludge miniature animal and flora species were richer.

• Periodical: Applied Mechanics and Materials (Volumes 361-363)
• Pages: 1032-1035
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.361-363.1032
• Online since: August 2013
• Authors: Xi Tian, Sheng Shu Ai, Yan Zuo, Qing Kai Ren, Zhong Yan Xie
• Keywords: Activated Sludge, Low-Temperature, Northern Urban Sewage

References

[1] JE. Alleman and TBS. Prakasam, Water Pollut Control Fed Vol. 5-55(1983), P 436.

[2] Y. L. Shen and B. Zh. Wang: New technology for biological wastewater treatment. (China Environmental Science Press, Beijing 1999).

[3] Zh. Q. Li and D. Y. Wang, Environmental Protection Science Vol. 4-27(2001), P 14.

[4] T. Y. Long, Q. He and G. Lin, CHINA WAT ER & WASTEWATER Vol. 2-16 (2000), P 5.

[5] K. Tan, Q. W. Chen, J. Q. Mao and W. F. Li, ACTA ECOLOG ICA SIN ICA. Vol. 27-11 (2007), P 4736.

[6] J. Yin, X. F. Wang, J. H. Wang and Ch. Jiao, Journal of Jilin Architectural and Civil Engineer ing Institute Vol. 24-2 (2007), P 29.