The Effect of Ferric Ion and Copper Ion on Extracellular Polymeric Substances

Li Yun Ge; Huan Huan Deng; De Xiang Gao; Hong Wu Wang

doi:10.4028/www.scientific.net/AMM.260-261.1035

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 260-261The Effect of Ferric Ion and Copper Ion on...

The Effect of Ferric Ion and Copper Ion on Extracellular Polymeric Substances

Abstract:

Extracellular polymeric substances (EPS), which are vital cellular polymeric substances, play an important role in biological wastewater treatment. In this paper, four SBRs (blank, added 20mg/L Fe3+, added 40mg/L Cu2+, added both 20mg/L Fe3+ and 40mg/L Cu2+, respectively) were used to investigate the effect of Fe3+ and Cu2+ on EPS produced by microorganism from activated sludge. Carbohydrate and protein were main components of EPS. The total content of EPS, the content of protein and carbohydrate, and the content of DNA in EPS were detected. The results show metal ion had an effect on the formation of EPS and the total content of the EPS. The effect of ferric ion on protein was more obvious than copper ion. Furthermore, the addition of metal ion had little effect on DNA in EPS.

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Periodical:

Applied Mechanics and Materials (Volumes 260-261)

Pages:

1035-1040

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.260-261.1035

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Online since:

December 2012

Authors:

Li Yun Ge, Huan Huan Deng, De Xiang Gao, Hong Wu Wang

Keywords:

Copper Ion, EPS, Extracellular Polymeric Substances, Ferric Ion

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