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Removal Efficiency and Influencing Factors of Antibiotic Resistance Genes in Secondary Effluent by the Process of O3 -PAC-UF
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Li-hua SUN1, Si DENG2, Peng-fei SHI3, Chun-fang WANG1
Science Technology and Engineering | 2025, 25(3) : 1298 - 1305
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Science Technology and Engineering | 2025, 25(3): 1298-1305
• Papers·Environmental and Safe Science •
Removal Efficiency and Influencing Factors of Antibiotic Resistance Genes in Secondary Effluent by the Process of O3 -PAC-UF
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Li-hua SUN1, Si DENG2, Peng-fei SHI3, Chun-fang WANG1
Affiliations
  • 1. Key Laboratory of Urban Rainwater System and Water Environment Ministry of Education,Beijing University of Civil Engineering and Architecture, Beijing 100044, China
  • 2. School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
  • 3. Beijing General Municipal Engineering Design & Research Institute Co., Ltd., Beijing 100082, China
Published: 2025-01-28 doi: 10.12404/j.issn.1671-1815.2309115
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ARGs(antibiotic resistance genes) as emerging environmental pollutants threaten human health, and studies show that secondary effluent from sewage treatment plants is an important source of ARGs in the environment. Ozone pre-oxidation combined with PAC(powdered activated carbon) and UF(ultrafiltration) was used to treat the secondary effluent from the wastewater treatment plant, and the factors and mechanisms of O3 dosage, pH, and temperature on the removal of different forms of ARGs in the secondary effluent were investigated. The results show that ARGs could be more effectively removed by PAC adsorption and UF after oxidative inactivation by O3; under the condition of optimal O3 dosage (2.0 mg/L), the combined O3-PAC-UF process could remove different types of ARGs (tetA, tetC, tetG, sulI, sulII) and other pollutants (intⅠ1, 16S rRNA) from the secondary effluent. The removal of different types of ARGs (tetA, tetC, tetG, sulI, sulII) and other pollutants (intⅠ1, 16S rRNA) by the combined process is 102.67~103.92 copies/mL, and the removal of cellular and free ARGs is significantly enhanced; the elevated pH and lower temperature facilitate the removal of ARGs; the direct oxidation of O3 molecules dominate the removal of ARGs in the secondary effluent. In conclusion, ozone combined with PAC and UF can effectively remove antibiotic resistance genes from secondary effluent.

ARGs  /  secondary effluent  /  UF  /  O3  /  PAC
Li-hua SUN, Si DENG, Peng-fei SHI, Chun-fang WANG. Removal Efficiency and Influencing Factors of Antibiotic Resistance Genes in Secondary Effluent by the Process of O3 -PAC-UF[J]. Science Technology and Engineering, 2025 , 25 (3) : 1298 -1305 . DOI: 10.12404/j.issn.1671-1815.2309115
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Year 2025 volume 25 Issue 3
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Article Info
doi: 10.12404/j.issn.1671-1815.2309115
  • Receive Date：2023-11-20
  • Online Date：2025-07-29
  • Published：2025-01-28
Article Data
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History
  • Received：2023-11-20
  • Revised：2024-06-24
Funding
Affiliations
    1. Key Laboratory of Urban Rainwater System and Water Environment Ministry of Education,Beijing University of Civil Engineering and Architecture, Beijing 100044, China
    2. School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
    3. Beijing General Municipal Engineering Design & Research Institute Co., Ltd., Beijing 100082, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
genus		 种数
Number of
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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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