INFLUENCE OF FLOWING AND STATIC WATER CONDITIONS ON MICROBIAL COMMUNITIES OF BIOFILMS ATTACHED ON SURFACE OF HYDRAULIC CONCRETE STRUCTURES

WAN Ming-yue; DU Ji-ming; LI Jun; LI Yi; WANG Long-fei

doi:10.13205/j.hjgc.202002004

Volume 38 Issue 2

Feb. 2020

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WAN Ming-yue, DU Ji-ming, LI Jun, LI Yi, WANG Long-fei. INFLUENCE OF FLOWING AND STATIC WATER CONDITIONS ON MICROBIAL COMMUNITIES OF BIOFILMS ATTACHED ON SURFACE OF HYDRAULIC CONCRETE STRUCTURES[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 35-40,69. doi: 10.13205/j.hjgc.202002004

Citation:

WAN Ming-yue, DU Ji-ming, LI Jun, LI Yi, WANG Long-fei. INFLUENCE OF FLOWING AND STATIC WATER CONDITIONS ON MICROBIAL COMMUNITIES OF BIOFILMS ATTACHED ON SURFACE OF HYDRAULIC CONCRETE STRUCTURES[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 35-40,69. doi: 10.13205/j.hjgc.202002004

Citation:

WAN Ming-yue, DU Ji-ming, LI Jun, LI Yi, WANG Long-fei. INFLUENCE OF FLOWING AND STATIC WATER CONDITIONS ON MICROBIAL COMMUNITIES OF BIOFILMS ATTACHED ON SURFACE OF HYDRAULIC CONCRETE STRUCTURES[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 35-40,69. doi: 10.13205/j.hjgc.202002004

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INFLUENCE OF FLOWING AND STATIC WATER CONDITIONS ON MICROBIAL COMMUNITIES OF BIOFILMS ATTACHED ON SURFACE OF HYDRAULIC CONCRETE STRUCTURES

doi: 10.13205/j.hjgc.202002004

1. College of Environment, Hohai University, Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Nanjing, 210098, China;
2. Water Conservancy and Agricultural Machinery Service Station in Huayang Street in Jurong, Zhenjiang, 212400, China

Received Date: 2019-10-21

Abstract

Abstract

Water conservation projects (WCP) are basically involved in the infrastructure industries in the modern society. Hydraulic structures, which play an important role in WCP, are mainly composed of concretes or reinforced concretes. Under long-term operation, they will be affected by microbial corrosion, which will cause structural damages and finally affect their safe operations. The analysis of bacterial community on surface of hydraulic structures is of great significance. The present work focuses on the microbial communities on surface of hydraulic concrete structures (HCS). We expounded the distribution and succession characteristics of bacterial communities under different hydrodynamic conditions and analyzed the response of bacterial community structure and composition on surface of HCS to environmental factors. The results show that:1) The mass loss of concretes was mainly attributed to hydrodynamic and microbial corrosion, in which microbial action played a more significant role; 2) Hydrodynamic conditions didn't significantly affect the composition and succession of microbial communities was surface of HCS; 3) Under flowing water conditions, the succession of microbial communities was accelerated, and the HCS would suffer an earlier microbial corrosion consequently. This study could provide a theoretical and engineering significance for the scientific and safe operation of water conservation projects.
- hydraulic concrete structure,
- biofilm,
- microbial community,
- hydrodynamic condition

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References(23)

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