Industrial Water Treatment ›› 2025, Vol. 45 ›› Issue (2): 166-174. doi: 10.19965/j.cnki.iwt.2024-0077

• RESEARCH AND EXPERIMENT • Previous Articles     Next Articles

Community characteristics of prokaryotic microorganisms in petroleum hydrocarbon contaminated groundwater

Dan ZHANG1(), Baohua TU1(), Xueming WANG2, Hongyang YIN3, Zhao SUN3   

  1. 1. College of Environment and Safety Engineering, Changzhou University, Changzhou 213164, China
    2. Tiandi (Changzhou) Automation Co. , Ltd. , Changzhou 213015, China
    3. Changzhou Keqing Environmental Protection Technology Co. , Ltd. , Changzhou 213119, China
  • Received:2024-12-01 Online:2025-02-20 Published:2025-02-24
  • Contact: Baohua TU

石油烃污染地下水中原核微生物群落特征

张丹1(), 涂保华1(), 汪学明2, 殷鸿洋3, 孙昭3   

  1. 1. 常州大学环境与安全工程学院,江苏 常州 213164
    2. 天地(常州)自动化股份有限公司,江苏 常州 213015
    3. 常州科清环保科技有限公司,江苏 常州 213119
  • 通讯作者: 涂保华
  • 作者简介:

    张丹(1996— ),硕士,E-mail:

Abstract:

In order to investigate the relationship between prokaryotic microbial communities and total petroleum hydrocarbon(TPH) contamination, high-throughput sequencing technology was used to investigate the microbial community structure in groundwater contaminated with petroleum hydrocarbons(TPH 0.01-2.09 mg/L). The results showed that the bacterial community was more sensitive to petroleum hydrocarbon contamination. At the phylum level, the largest relative abundance of archaea and bacteria were Euryarchaeota(34.63%-92.73%) and Proteobacteria(72.18%-83.34%), respectively. The abundances of Methanogens spp. in archaea and Acinetobacter, Rhodobacter, Pseudomonas, and Novosphingobium in bacteriain of the wells with high concentration petroleum hydrocarbons were significantly higher than that of other wells. Compared with archaea, bacterial community structure was more closely related to the tolerance of petroleum hydrocarbons. Other physical and chemical properties of groundwater, such as pH, sampling depth, ORP, temperature, and DO, also had impacts on community structure. The top 100 sequences with the highest abundance were selected from the archaeal operational taxonomic(OTU) group and bacterial amplicon sequence variant(ASV) group to construct a co-occurrence network. Through co-occurrence network analysis, three ecological modules related to petroleum hydrocarbon degradation processes were identified, and the relative abundance differences of the three modules were significantly related to TPH tolerance, with Euryarchaeota and Proteobacteria as the main members of the modules.

Key words: groundwater, total petroleum hydrocarbons, microbial community structure, co-occurrence network

摘要:

为探究原核微生物群落与总石油烃(TPH)污染之间的关系,采用高通量测序技术对某废弃化工厂内受石油烃污染(TPH 0.01~2.09 mg/L)的地下水中的微生物群落结构进行研究。结果表明:细菌群落对石油烃污染更敏感,在门水平上,古菌和细菌中相对丰度最大的分别为Euryarchaeota(34.63%~92.73%)和Proteobacteria(72.18%~83.34%),古菌中的产甲烷菌和细菌中的AcinetobacterRhodobacter、PseudomonasNovosphingobium在石油烃高污染井地下水中的丰度显著高于在其他井地下水中的丰度;与古菌相比,细菌群落结构与菌群自身对石油烃的耐受性相关性更高;地下水的其他理化性质,如pH、采样深度、ORP、温度、DO对群落结构亦有影响;分别在古菌操作分类单元(OTU)组及细菌扩增子序列变体(ASV)组中选取丰度最高的前100组序列构建共发生网络,通过共发生网络分析,确定了与石油烃降解过程有关的3个生态模块,且3个模块的相对丰度差异与TPH耐受性呈显著相关性,模块中主要成员为Euryarchaeota和Proteobacteria。

关键词: 地下水, 总石油烃, 微生物群落结构, 共发生网络

CLC Number: