[1]袁艺鸣,张广毅,方宏远,等.排水管道微生物群落对管道腐蚀的影响[J].中国给水排水,2022,38(8):46-51.
　YUANYi-ming,ZHANGGuang-yi,FANGHong-yuan,et al.Influence of Microbial Community in Drainage Pipeline on Corrosion[J].China Water & Wastewater,2022,38(8):46-51.
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排水管道微生物群落对管道腐蚀的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第8期 页码: 46-51 栏目: 出版日期: 2022-04-17
Title:
Influence of Microbial Community in Drainage Pipeline on Corrosion
作者:
袁艺鸣1,2,3， 张广毅1， 方宏远1,2,3,4， 苏德志1
（1.郑州大学 水利科学与工程学院，河南 郑州 450001；2.重大基础设施检测修复技术国家地方联合工程实验室，河南 郑州 450001；3.水利与交通基础设施安全防护河南省协同创新中心，河南 郑州 450001；4.南方工程检测修复技术研究院，广东 惠州 516029）
Author(s):
YUAN　Yi-ming1，2，3， ZHANG　Guang-yi1， FANG　Hong-yuan1，2，3，4， SU　De-zhi1
（1. School of Water Conservancy and Engineering， Zhengzhou University， Zhengzhou 450001， China； 2. National Local Joint Engineering Laboratory of Major Infrastructure Testing and Rehabilitation Technology， Zhengzhou 450001， China； 3. Henan Province Collaborative Innovation Center of Water Conservancy and Transportation Infrastructure Safety， Zhengzhou 450001， China； 4. Southern Engineering Inspection and Restoration Technology Research Institute， Huizhou 516029， China）
关键词:
排水管道;  微生物群落;  腐蚀;  环境因子;  权重
Keywords:
sewer pipes;  microbial community;  corrosion;  environmental factors;  weight
摘要:
选取3条典型的腐蚀排水管道作为研究对象，通过对腐蚀区域的生物膜和污水进行采样，研究了排水管道系统微生物群落的分布特征和环境因素对生物多样性的影响，并通过16S rRNA分析了微生物群落的空间分布。研究结果表明，在3条排水管道中微生物群落分布具有一定的相似性，在门水平上，变形菌门（38.2%）、放线菌门（37.2%）在管道顶部腐蚀区域占据优势，而管底区域绿弯菌门（31.6%）、广古菌门（19.5%）占据优势；在属水平上，分枝杆菌（33.1%）在管道顶部腐蚀区域丰度最高，而甲烷丝菌（18.1%）在管底区域丰度最高。在典型相关分析中发现，pH为微生物群落的重要影响因素。不同的功能菌对管道的腐蚀影响强度不同，在各功能菌影响权重的计算中发现，管顶硫氧化细菌及管底硝酸盐还原菌占据较高的权重，分别为0.30和0.22。在管道微生物腐蚀评估中发现，管道开始段面临的微生物腐蚀风险较高。
Abstract:
Three typical sewer pipes were selected to study the influence of microbial community on the corrosion drainage pipeline. The distribution characteristics of microbial community and the impact of environmental factors on biological diversity were studied by sampling the biofilm and sewage in pipes. The structure of microbial community in spatial distribution was analyzed by 16S rRNA gene amplicon sequencing (Illumina). The distribution of microbial communities in different pipes had a certain similarity. In the phylum level, Proteobacteria (38.2%) and Actinobacteria (37.2%) dominated at the upper part of the pipes as well as Chloroflexi (31.6%) and Euryarchaeota (19.5%) dominated at the bottom part of the pipes. In the genus level, Mycobacterium (33.1%) at the upper part and Methanothrix (18.1%) at the bottom part had the highest abundance. Canonical correspondence analysis found that pH was the important factor affecting the microbial community. Different functional bacteria have different effects on pipeline corrosion. In the calculation of the weight of functional bacteria, sulfur?oxidizing bacteria at the upper part and nitrate-reducing bacteria at the bottom part had higher weights, which were 0.30 and 0.22, respectively. It was found by the microbial corrosion assessment that the risk of microbial concrete corrosion of pipe beginning part was higher.

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更新日期/Last Update: 2022-04-17