İleri Biyolojik Kentsel Atıksu Arıtma Tesisinde Seçilmiş Antibiyotiklerin Oluşumu, Akıbeti ve Giderimi

Yıl 2024, Cilt: 24 Sayı: 4, 1005 - 1018, 20.08.2024

Taylan Dolu , Bilgehan Nas

https://doi.org/10.35414/akufemubid.1287632

Öz

Atıksu arıtma tesisleri (AAT'ler), antibiyotiklerin doğal ortama geçişi için en önemli noktasal kaynaklardan biri olarak kabul edilmektedir. Bu çalışmada, sırasıyla kinolon, sülfonamid ve makrolid gruplarına ait üç antibiyotik bileşik siprofloksasin (CIP), sülfametoksazol (SMX) ve azitromisinin (AZI) büyük ölçekli kentsel bir AAT'deki oluşumu, akıbeti ve uzaklaştırılması mevsimsel olarak araştırılmıştır. İncelenen antibiyotiklerin ham atıksulardaki oluşum konsantrasyonları yaz mevsiminde yaklaşık 0,26 ile 0,73 μg/L arasında bulunurken kış mevsiminde ise yaklaşık 0,41 ile 4,6 μg/L aralığında belirlenmiştir. Çalışılan ileri biyolojik AAT'nin ön arıtma kademesinde antibiyotikler için elde edilen giderim verimleri çok yüksek olmamak ile birlikte ön arıtma kademesinde en fazla arıtılan bileşik CIP (%23,8'e kadar) olarak belirlenmiştir. AAT'de araştırılan antibiyotiklerin toplam giderim verimleri esas olarak AAT'nin biyolojik arıtma kademesine bağlı olarak değişiklik göstermiştir. Aynı zamanda biyolojik arıtmada antibiyotikler için elde edilen giderim verimleri de mevsimlere bağlı olarak önemli ölçüde değişmiştir. İncelenen tüm antibiyotik bileşikler arasında AAT'de elde edilen toplam giderim verimi açısından mevsimlerden en az etkilenen bileşiğin AZI olduğu belirlenmiştir. Yıllık ortalama toplam giderim verimlerine göre AAT'de; SMX (%25,7), CIP (%71,3) ve AZI'nin (%89,2) sırasıyla düşük, orta ve yüksek oranda arıtıldığı belirlenmiştir. Bununla birlikte, ileri biyolojik AAT'nin toplam antibiyotiklerin tamamen giderilmesi için yetersiz olduğu belirlenmiştir.

Anahtar Kelimeler

Antibiyotikler, Farmasötikler, Giderim, Mevsimsel dağılım, Atıksu, Atıksu arıtma tesisi

Destekleyen Kurum

Yok

Proje Numarası

Yok

Teşekkür

Konya Su ve Kanalizasyon İdaresi'ne (KOSKİ) teşekkür ederiz.

Occurrence, Fate, and Removal of Selected Antibiotics in Advanced Biological Urban Wastewater Treatment Plant

Öz

Wastewater treatment plants (WWTPs) are considered as one of the most important point sources for releasing antibiotics into the natural environment. In this study, the occurrence, fate, and removal of three antibiotics, ciprofloxacin (CIP), sulfamethoxazole (SMX), and azithromycin (AZI), belong to quinolone, sulfonamide, and macrolide groups, respectively were investigated seasonally in a large-scale urban WWTP. While the occurrence concentrations of the investigated antibiotics in raw wastewater were found between about 0.26 and 0.73 μg/L in the summer season, it was determined in the range of approximately 0.41 and 4.6 μg/L in the winter season. Although the removal efficiencies obtained for antibiotics in the pre-treatment stage of the studied advanced biological WWTP were not very high, the most treated compound in the pre-treatment stage was determined as CIP (up to 23.8%). Total removal efficiencies of the investigated antibiotics in the WWTP varied mainly based on the biological treatment stage of the WWTP. At the same time, removal efficiencies of the antibiotics obtained in the biological treatment also changed considerably depending on the seasons. Among all the investigated antibiotic compounds, it was determined that AZI was the compound that was least affected by the seasons in terms of the total removal efficiency obtained in WWTP. According to the annual average total removal efficiencies, it was determined that SMX (25.7%), CIP (71.3%), and AZI (89.2%) were treated poorly, moderately, and highly in WWTP, respectively. However, advanced biological WWTP was determined to be insufficient for the complete removal of total antibiotics.

Anahtar Kelimeler

Antibiotics, Pharmaceuticals, Removal, Seasonal distribution, Wastewater, Wastewater treatment plant

Proje Numarası

Yok

Kaynakça

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