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Characteristics of migration and deposition of microorganisms under different seepage conditions in stormwater recharge
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Yu-hui WU1, 2, Yue-suo YANG1, Ying LU1, *, Zi-han YAN3, Qian-dan WANG1, Min SHI4
China Environmental Science | 2025, 45(1) : 487 - 499
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China Environmental Science | 2025, 45(1): 487-499
• Environmental Microbiology •
Characteristics of migration and deposition of microorganisms under different seepage conditions in stormwater recharge
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Yu-hui WU1, 2, Yue-suo YANG1, Ying LU1, *, Zi-han YAN3, Qian-dan WANG1, Min SHI4
Affiliations
  • 1.Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
  • 2.South China Institute of Environmental Sciences, MEE, Guangzhou 510535, China
  • 3.Key Laboratory of Surficial Geochemistry, Ministry of Education, Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
  • 4.School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
Published: 2025-01-20
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Based on the unique hydrodynamic and environmental conditions of stormwater artificial recharge, a series of one-dimensional seepage simulation experiments were conducted. The migration and deposition characteristics of clogging microorganisms within porous media under varying seepage conditions, such as different saturation levels, pH environments, ionic strengths, and recharge rates were systematically analyzed and the development of bioclogging within porous media under different seepage conditions was clarified. DLVO theory was used to reveal the dominant forces during microbial migration under different pH environments and ionic strengths. The results showed that the migration of microorganisms slowed down as saturation decreased, pH lowered, ionic strength of the recharge water increased, or recharge flow rate decreased. Consequently, deposition on the medium increased, while interlayer deposition became more uniform, promoting the formation of bioclogging within the medium. Changes in saturation, pH, or ionic strength had minimal effect on microbial migration when saturation was between 60% and 80%, pH was between 7.5 and 8.5, or ionic strength was between 1and 5mmol/L. Under unsaturated conditions, the impact of recharge rate variations on microbial migration and deposition was weakened when the recharge rate was within the range of 0.5to 1mL/min. Under different pH environments and ionic strengths, the dominant forces during microbial migration in saturated and unsaturated media were electrostatic forces and capillary forces, respectively.

clogging microorganisms  /  migration and deposition  /  seepage state  /  stormwater artifical recharge  /  bioclogging
Yu-hui WU, Yue-suo YANG, Ying LU, Zi-han YAN, Qian-dan WANG, Min SHI. Characteristics of migration and deposition of microorganisms under different seepage conditions in stormwater recharge[J]. China Environmental Science, 2025 , 45 (1) : 487 -499 .
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Article Info
  • Receive Date：2024-06-17
  • Online Date：2026-03-18
  • Published：2025-01-20
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  • Received：2024-06-17
Funding
Affiliations
    1.Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
    2.South China Institute of Environmental Sciences, MEE, Guangzhou 510535, China
    3.Key Laboratory of Surficial Geochemistry, Ministry of Education, Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
    4.School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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