Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions

Ecotoxicology and Environmental Safety
Yanjie WangKaixiong Yang

Abstract

Samples from two oxidation ditch process municipal wastewater treatment plants (MWTPs) (HJK and GXQ) in two regions of China were analysed for bacteria, particles, total organic carbon, and water-soluble ions in bioaerosols. Diversity and potential pathogen populations were evaluated by high-throughput sequencing. Bioaerosol sources, factors affecting intestinal bacterial survival, and the relationship between bioaerosols and water were analysed by Source tracker and partial least squares-discriminant, principal component, and canonical correspondence analyses. Culturable bacteria concentrations were 110-846 and 27-579 CFU/m3 at HJK and GXQ, respectively. Intestinal bacteria constituted 6-33% of bacteria. Biochemical reaction tank, sludge dewatering house (SDH), and fine screen samples showed the greatest contribution to bioaerosol contamination. Enterobacter aerogenes was the main intestinal bacteria (> 99.5%) in HJK and detected at each sampling site. Enterobacter aerogenes (98.67% in SDH), Aeromonas sp. (76.3% in biochemical reaction tank), and Acinetobacter baumannii (99.89% in fine screens) were the main intestinal bacteria in GXQ. Total suspended particulate masses in SDH were 229.46 and 141.6 μg/m3 in HJK and GXQ, respec...Continue Reading

Citations

Oct 15, 2020·Environmental Science and Pollution Research International·Cheng YanJun-Ting Wu
Dec 15, 2020·Journal of Environmental Health Science & Engineering·Nastaran TalepourNeamat Jaafarzadeh Haghighi Fard
Oct 28, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Pengcheng XuXiaochang C Wang
Sep 4, 2020·The Science of the Total Environment·Pengyu LiJunxin Liu
Jun 11, 2019·The Science of the Total Environment·Andrés Gaviria-FigueroaR Sean Norman
Sep 15, 2021·Microbial Drug Resistance : MDR : Mechanisms, Epidemiology, and Disease·Ziyu ZhouXuewen Li

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