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Biodegradation of Poly(Aspartic Acid-Itaconic Acid) Copolymers by Miscellaneous Microbes from Natural Water

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Abstract

Poly(aspartic acid-itaconic acid) copolymers (PAI) is a new scale inhibitor for water treatment. Thus, it is necessary to investigate its biodegradability. The biodegradability of PAI was investigated through CO2 evolution tests under different conditions based on determination of carbon dioxide production. The investigation results showed that the degradation rate of PAI on day 10 and day 28 were respectively 38.7 and 79.5%, indicating that PAI was one kind of easily biodegradable scale inhibitors. With the increase in the content of itaconic acid in copolymerization process, the biodegradability of PAI was significantly reduced. In addition, the high biodegradability might be attributed to the existence of C–N bone-structure and more –COO–. Finally, Cu2+ could decrease the degradation percentage and the enzyme inhibition effect of Cu2+ was not the linear effect, but the “low-dosage effect”.

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Acknowledgements

This work was financially supported by National Natural Science Foundation of China (Grant No. 51308211), Natural Science Foundation of Hebei Province (Grant No. E2016502097) and the Fundamental Research Funds for the Central Universities (Grant No. 2015MS63).

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Authors and Affiliations

  1. School of Environmental Science & Engineering, North China Electric Power University, Baoding, 071003, China

    Yuling Zhang, Hanxiao Wei, Yijian Jiang, Shaoxin Kang, Zhiguang Hu & Jilong Wang

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  1. Yuling Zhang
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  2. Hanxiao Wei
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  3. Yijian Jiang
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  4. Shaoxin Kang
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  5. Zhiguang Hu
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  6. Jilong Wang
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Correspondence to Yuling Zhang.

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Zhang, Y., Wei, H., Jiang, Y. et al. Biodegradation of Poly(Aspartic Acid-Itaconic Acid) Copolymers by Miscellaneous Microbes from Natural Water. J Polym Environ 26, 116–121 (2018). https://doi.org/10.1007/s10924-016-0923-z

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  • DOI: https://doi.org/10.1007/s10924-016-0923-z

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