ZHENG Hang-wei,PAN Zhi-quan.Effect and Benefit Evaluation of Coating for Controlling Limnoperna fortunei on Culvert Roughness[J].China Water & Wastewater,2021,37(24 24):87-92.
Effect and Benefit Evaluation of Coating for Controlling Limnoperna fortunei on Culvert Roughness
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
24 24
Page:
87-92
Column:
Date of publication:
2021-12-17
- Abstract:
- Limnoperna fortunei attached to the inner wall of culvert may cause concrete erosion and roughness increase, thus increasing the energy consumption and project operation cost. Herein, special protective coating was selected from physical measures to carry out tests in a project site, and the protective effects of different coatings such as SBS, ZH2000B, GX-BIOX and G-Ⅱ on Limnoperna fortunei were compared. The results show that GX-BIOX coating has the best anti-biological adhesion effect, while G-Ⅱ, SBS and ZH2000B coatings have poor protection. Application of GX-BIOX coating in the inverted siphon culvert realized no Limnoperna fortunei attachment and good protection effect after operating for one year. The culvert inner wall was smooth and the average roughness decreased from 0.017 2 to 0.009 6, which remarkably reduced water conveyance energy consumption and has good economic, social environmental and ecological benefits.
Last Update:
2021-12-17