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Volume 38 Issue 1
Mar.  2020
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CHEN Ying-qing, WEN Yue, WANG Xue-ye, LI Zhen, PENG Zheng-liang, LV Rui-bin, SHEN Yi-wen, WANG Zhi-wei. MODIFIED EPOXY COATING BY ADDING QUATERNARY AMMONIUM COMPOUND AND ITS PROPERTIES IN INHIBITING ALGAL ADHESION AND GROWTH[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(1): 80-86. doi: 10.13205/j.hjgc.202001012
Citation: CHEN Ying-qing, WEN Yue, WANG Xue-ye, LI Zhen, PENG Zheng-liang, LV Rui-bin, SHEN Yi-wen, WANG Zhi-wei. MODIFIED EPOXY COATING BY ADDING QUATERNARY AMMONIUM COMPOUND AND ITS PROPERTIES IN INHIBITING ALGAL ADHESION AND GROWTH[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(1): 80-86. doi: 10.13205/j.hjgc.202001012

MODIFIED EPOXY COATING BY ADDING QUATERNARY AMMONIUM COMPOUND AND ITS PROPERTIES IN INHIBITING ALGAL ADHESION AND GROWTH

doi: 10.13205/j.hjgc.202001012
  • Received Date: 2019-06-21
  • In municipal wastewater treatment plants, wastewater treatment facilities are usually covered by a great amount of algae. To solve this problem, in this study, quaternary ammonium compound (QAC)/epoxy composite coatings were prepared by blending QAC into epoxy paint. Effects of QAC dosage on the physicochemical properties and anti-algal adhesion/growth behaviors of the composite coatings were investigated. The results showed that QAC was successfully present on the modified coating and more quaternary ammonium groups (R4N+) were loaded on the surface with the increase of QAC dosage. No significant differences in hydrophobicity and water stabilities were observed between epoxy coating and the modified ones. Compared to the original coating, zeta potential of composite coatings was shifted towards less negative potential and roughness was slightly lower as the result of QAC dosing. The inhibition properties of algae of the coatings were evaluated using Chlorella vulgaris as the model algae. Less Chlorella vulgaris were adhered on QAC/epoxy composite coatings than epoxy coating and better anti-algae performance was obtained with higher QAC concentration.
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