模拟动静水条件对水工混凝土表面生物膜微生物群落的影响

万明月; 都基铭; 李俊; 李轶; 王龙飞

doi:10.13205/j.hjgc.202002004

模拟动静水条件对水工混凝土表面生物膜微生物群落的影响

doi: 10.13205/j.hjgc.202002004

1. 河海大学环境学院浅水湖泊综合治理与资源开发教育部重点实验室, 南京 210098;
2. 句容市华阳街道水利农机服务站, 江苏镇江 212400

详细信息

作者简介:
万明月(1997-),女,硕士研究生,主要研究方向为水工混凝土微生物腐蚀防控。15150826399@163.com

通讯作者:
李轶(1975-),男,博士,主要研究方向为水环境治理、水生态保护与非常规水资源利用技术。envly@hhu.edu.cn

计量
- 文章访问数: 193
- HTML全文浏览量: 20
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2019-10-21

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

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

摘要

摘要: 水利工程是社会发展的重要基础设施，作为其重要组成部分的水工混凝土构筑物在长期运行下会受到微生物腐蚀作用，造成不同程度的结构损伤，影响其安全运行，因此对水工构筑物表面细菌群落结构及功能的解析具有重要的科学和工程意义。以水工混凝土构筑物表面微生物群落为研究对象，阐述动静水条件下微生物群落组成分布及演替特征，探究表面微生物群落结构组成与环境因素之间的相关关系。结果表明：1）混凝土质量损失主要由水动力条件和微生物作用共同导致，其中微生物作用更为显著；2）相比于静水条件，动水条件未显著影响水工混凝土表面微生物群落的分布特征；3）动水条件下混凝土表面微生物群落在更短的时间内趋于稳定，由此推断模拟动水环境中水工混凝土将更早地遭受微生物腐蚀作用。研究对水利工程设施的安全运行具有积极的理论和工程意义。
- 水工混凝土构筑物 /
- 生物膜 /
- 微生物群落 /
- 动静水条件
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

HTML全文

参考文献(23)

LIU J G, ZANG C F, TIAN S Y, et al. Water conservancy projects in China:achievements, challenges and way forward[J]. Global Environmental Change, 2013, 23(3):633-643.

张楚汉, 王光谦. 我国水安全和水利科技热点与前沿[J]. 中国科学:技术科学, 2015, 45(10):1007-1012.

SU H Z, HU J, YANG M, et al. Assessment and prediction for service life of water resources and hydropower engineering[J]. Natural Hazards, 2015, 75(3):3005-3019.

GRENGG C, MITTERMAYR F, BALDERMANN A, et al. Microbiologically induced concrete corrosion:a case study from a combined sewer network[J]. Cement and Concrete Research, 2015, 77:16-25.

张小伟, 张雄. 混凝土微生物腐蚀防治研究现状和展望[J]. 材料保护, 2005, 38(11):44-48.

Hager W H, Boes R M. Hydraulic structures:a positive outlook into the future[J]. Journal of Hydraulic Research, 2014, 52(3):299-310.

叶凝芳, 何品晶, 吕凡. 厌氧发酵过程pH对微生物多样性和产物分布的影响[J]. 应用与环境生物学报, 2007, 13(2):238-242.

陈燕, 刘国华, 范强,等. 不同溶解氧条件下A/O系统的除碳脱氮效果和细菌群落结构变化[J]. 环境科学, 2015, 36(7):2610-2616.

王子超. 盐度和重金属对序批式生物反应器性能及微生物群落结构影响的研究[D]. 青岛:中国海洋大学, 2014.

OSORIO V, PROIA L, RICART M, et al. Hydrological variation modulates pharmaceutical levels and biofilm responses in a Mediterranean river[J]. Science of the Total Environment, 2014, 472:1052-1061.

CLOETE T E, WESTAARD D, VAN VUUREN S J. Dynamic response of biofilm to pipe surface and fluid velocity[J]. Water Science and Technology, 2003, 47(5):57-59.

ZHANG Y, GUO H X, CHENG X H. Role of calcium sources in the strength and microstructure of microbial mortar[J]. Construction and Building Materials, 2015, 77:160-167.

AL-THAWADI S, CORD-RUWISCH R, BOUOUDINA M. Consolidation of sand particles by nanoparticles of calcite after concentrating ureolytic bacteria in situ[J]. International Journal of Green Nanotechnology, 2012, 4(1):28-36.

JIANG G, KELLER J, BOND P L. Determining the long-term effects of H₂S concentration, relative humidity and air temperature on concrete sewer corrosion[J]. Water Research, 2014, 65:157-169.

GROBBELAAR J U. Turbulence in mass algal cultures and the role of light/dark fluctuations[J]. Journal of Applied Phycology, 1994, 6(3):331-335.

杨学志, 王一了, 夏晓虹,等. 溶解氧对晚期垃圾渗滤液短程硝化及微生物群落结构变化的影响[J]. 环境污染与防治, 2012, 34(11):14-19.

郑佳. 水工建筑混凝土腐蚀与危害因素探讨[J]. 城市建设理论研究:电子版, 2014, 26(4):2874-2875.

LING A L, ROBERTSON C E, HARRIS J K, et al. High-resolution microbial community succession of microbially induced concrete corrosion in working sanitary manholes[J]. Plos One, 2015, 10(3):e0116400.

刘若秀. 大坝水环境对坝体混凝土的腐蚀评价[J]. 东北水利水电, 2015, 33(11):33-35.

YOON J H, KIM B C, PARK Y H. Planomicrobium[M]//Whitman W B, Rainery F, Kāmpfer Y,et al.Bergey's Manual of Systematics of Archaea and Bacteria.New Jersey:John Wiley & Sons InC, 2015.

GORBUSHINA A A. Life on the rocks[J]. Environmental Microbiology, 2007, 9(7):1613-1631.

STEGEN J C, LIN X, KONOPKA A E, et al. Stochastic and deterministic assembly processes in subsurface microbial communities[J]. ISME Journal, 2012, 6(9):1653-1664.

STEGEN J C, LIN X, FREDRICKSON J K, et al. Quantifying community assembly processes and identifying features that impose them[J]. ISME Journal, 2013, 7(11):2069-2079.

施引文献

资源附件(0)

访问统计