Türkiye'de Kentsel Bir Atıksu Arıtma Tesisinde SARS-CoV-2 ve Gastrointestinal Patojenlerin Araştırılması

Abstract

Bu çalışmada, Elazığ'da (Türkiye) bir kentsel atıksu arıtma tesisinde (AAT) SARS-CoV-2 ve gastrointestinal patojenler araştırılmıştır. Gastrointestinal patojen analizleri AAT giriş ve çıkış sularında, SARS-CoV-2 analizleri ise arıtma tesisinin farklı ünitelerinde yapılmıştır. Elde edilen analiz sonuçlarına göre AAT’nin girişinde gastrointestinal patojenler (bakteriyel, viral, EPA ve dışkı parazitleri) tespit edilmiştir. AAT'nin atıksularında enterohemorragik / verotoksin üreten Esherichia coli, gastroenterite neden olan tüm viral ajanlar (sapovirüsler (Sapo) hariç), insan parekovirüs (HPeV) ve EPA'dan adenovirüsler ve dışkı parazitlerinden Giardia lamblia tespit edilmiştir. AAT çıkışında gastroenterite neden olan bakteriyel ajanlar, viral ajanlar, EPA ve dışkı parazitleri incelendiğinde 7'de sadece 1, 6'da 4, 3'te 2 ve 3'te 1 ajan pozitif (+) olarak tespit edilmiştir. Atık su arıtma tesisinin her bir ünitesinden alınan numunelerde SARS-CoV-2 tespit edilememiştir. Sonuç olarak, araştırma bulgularına göre, atık su arıtma tesisi atık sularında patojenlerle karşılaşıldığından, çevre ve insan sağlığını korumak için arıtma tesislerinde dezenfeksiyon sistemine sahip olmak ve patojenleri ve SARS-CoV-2'yi sürekli izlemek gerekmektedir.

Keywords

• Gastrointestinal
• patojen
• SARS-CoV-2
• arıtma
• virüsler
• atıksu

Investigation of SARS-CoV-2 and gastrointestinal pathogens in a municipal wastewater treatment plant in Turkey

Abstract

In this study, SARS-CoV-2 and gastrointestinal pathogens in a municipal wastewater treatment plant (MWWTP) in Elazığ (Turkey) were investigated. The gastrointestinal pathogen analyzes were performed in influent and effluent of MWWTP, and SARS-CoV-2 analyzes were performed in different treatment units. According to obtained analysis results, gastrointestinal pathogens (bacterial, viral, EPA, and stool parasites) were detected in influent of the MWWTP. Enterohemorragic/verotoxin-producing Ecsherichia coli, all viral agents causing gastroenteritis (except sapoviruses (Sapo)), human parechovirus (HPeV) and adenoviruses from EPA, and Giardia lamblia from stool parasites were detected in effluents of the MWWTP. When bacterial agents causing gastroenteritis, viral agents, EPA, and stool parasites were investigated in the effluent of MWWTP, only 1 agent out of 7, 4 agents out of 6, 2 agents out of 3, and 1 agent out of 3 was detected as positive (+), respectively. SARS-CoV-2 could not be detected in the samples taken from each unit of the wastewater treatment plant. As a result, according to research findings, since pathogens are encountered in wastewater treatment plant effluents, it is necessary to have a disinfection system in the treatment plants and to monitor pathogens and SARS-CoV-2 continuously in order to protect environmental and human health.

Keywords

• Gastrointestinal
• pathogen
• SARS-CoV-2
• treatment
• viruses
• wastewater

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