HUANG Jing Jing; XI Jing Ying; HU Hong Ying; TANG Fang; PANG Yu Chen

doi:10.3967/bes2013.012

Inactivation and Regrowth of Antibiotic-resistant Bacteria by PAA Disinfection in the Secondary Effluent of a Municipal Wastewater Treatment Plant

HUANG Jing Jing, XI Jing Ying, HU Hong Ying, TANG Fang, PANG Yu Chen

文章导航 > Biomedical and Environmental Sciences > 2013 > 26(10): 865-868

HUANG Jing Jing, XI Jing Ying, HU Hong Ying, TANG Fang, PANG Yu Chen. Inactivation and Regrowth of Antibiotic-resistant Bacteria by PAA Disinfection in the Secondary Effluent of a Municipal Wastewater Treatment Plant[J]. Biomedical and Environmental Sciences, 2013, 26(10): 865-868. doi: 10.3967/bes2013.012

Citation:

HUANG Jing Jing, XI Jing Ying, HU Hong Ying, TANG Fang, PANG Yu Chen. Inactivation and Regrowth of Antibiotic-resistant Bacteria by PAA Disinfection in the Secondary Effluent of a Municipal Wastewater Treatment Plant[J]. Biomedical and Environmental Sciences, 2013, 26(10): 865-868. doi: 10.3967/bes2013.012

doi: 10.3967/bes2013.012

基金项目: This study was supported by Chinese National Science Fund (Key Program) (51078209)

Inactivation and Regrowth of Antibiotic-resistant Bacteria by PAA Disinfection in the Secondary Effluent of a Municipal Wastewater Treatment Plant

State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;China Power Engineering Consulting Group Corporation, Beijing 100120, China
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China

Funds: This study was supported by Chinese National Science Fund (Key Program) (51078209)

摘要:
Inactivation and microbial regrowth of penicillin-,ampicillin-,cefalexin-,tetracycline-,chloramphenicol-,and rifampicin-resistant bacteria were studied to explore risks associated with selection and regrowth of antibiotic-resistant bacteria after PAA disinfection.The results showed that after exposure to 20 mg/L PAA for 10 min,inactivation of ampicillin-resistant bacteria reached 2.3-log,which was significantly higher than that of total heterotrophic bacteria with a decrease of 2.0-log.In contrast,inactivation of tetracyclineresistant bacteria was significantly less efficient,reaching only 1.1-log.Chloramphenicol-and tetracycline-resistant bacteria,as well as total heterotrophic bacteria regrew more than 10 fold compared to those in the untreated wastewater sample with 22 h stilling culture after exposure to 2 or 5 mg/L PAA as for 10 min.Selection and potential regrowth of tetracycline-and chloramphenicol-resistant bacteria are potential risks when utilizing PAA disinfection,which may induce the spread of specific antibiotic-resistant bacteria in reclaimed water.
Abstract:
Inactivation and microbial regrowth of penicillin-,ampicillin-,cefalexin-,tetracycline-,chloramphenicol-,and rifampicin-resistant bacteria were studied to explore risks associated with selection and regrowth of antibiotic-resistant bacteria after PAA disinfection.The results showed that after exposure to 20 mg/L PAA for 10 min,inactivation of ampicillin-resistant bacteria reached 2.3-log,which was significantly higher than that of total heterotrophic bacteria with a decrease of 2.0-log.In contrast,inactivation of tetracyclineresistant bacteria was significantly less efficient,reaching only 1.1-log.Chloramphenicol-and tetracycline-resistant bacteria,as well as total heterotrophic bacteria regrew more than 10 fold compared to those in the untreated wastewater sample with 22 h stilling culture after exposure to 2 or 5 mg/L PAA as for 10 min.Selection and potential regrowth of tetracycline-and chloramphenicol-resistant bacteria are potential risks when utilizing PAA disinfection,which may induce the spread of specific antibiotic-resistant bacteria in reclaimed water.
- heterotrophic bacteria

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Inactivation and Regrowth of Antibiotic-resistant Bacteria by PAA Disinfection in the Secondary Effluent of a Municipal Wastewater Treatment Plant

doi: 10.3967/bes2013.012

基金项目: This study was supported by Chinese National Science Fund (Key Program) (51078209)

刊出日期: 2013-10-20

关键词:

heterotrophic bacteria

摘要:

Inactivation and microbial regrowth of penicillin-,ampicillin-,cefalexin-,tetracycline-,chloramphenicol-,and rifampicin-resistant bacteria were studied to explore risks associated with selection and regrowth of antibiotic-resistant bacteria after PAA disinfection.The results showed that after exposure to 20 mg/L PAA for 10 min,inactivation of ampicillin-resistant bacteria reached 2.3-log,which was significantly higher than that of total heterotrophic bacteria with a decrease of 2.0-log.In contrast,inactivation of tetracyclineresistant bacteria was significantly less efficient,reaching only 1.1-log.Chloramphenicol-and tetracycline-resistant bacteria,as well as total heterotrophic bacteria regrew more than 10 fold compared to those in the untreated wastewater sample with 22 h stilling culture after exposure to 2 or 5 mg/L PAA as for 10 min.Selection and potential regrowth of tetracycline-and chloramphenicol-resistant bacteria are potential risks when utilizing PAA disinfection,which may induce the spread of specific antibiotic-resistant bacteria in reclaimed water.

English Abstract

Inactivation and Regrowth of Antibiotic-resistant Bacteria by PAA Disinfection in the Secondary Effluent of a Municipal Wastewater Treatment Plant

State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;China Power Engineering Consulting Group Corporation, Beijing 100120, China

State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China

State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China

Funds: This study was supported by Chinese National Science Fund (Key Program) (51078209)

Publish Date: 2013-10-20

Keywords:

heterotrophic bacteria

Abstract:

Citation:

HUANG Jing Jing, XI Jing Ying, HU Hong Ying, TANG Fang, PANG Yu Chen. Inactivation and Regrowth of Antibiotic-resistant Bacteria by PAA Disinfection in the Secondary Effluent of a Municipal Wastewater Treatment Plant[J]. Biomedical and Environmental Sciences, 2013, 26(10): 865-868. doi: 10.3967/bes2013.012