Entegre sabit biyofilm sistem ile karbon, azot ve fosfor gideriminin araştırılması

Yıl 2024, Cilt: 13 Sayı: 1, 334 - 341, 15.01.2024

Jamıla Mohamad Mustafa Işık

https://doi.org/10.28948/ngumuh.1351759

Öz

Klasik aktif çamur sistemleri, evsel atıksu arıtımında yüz yıldan uzun bir süredir kullanılmaktadır. Ancak son yıllarda su kaynaklarının korunması için sadece karbon giderimi değil, azot ve fosfor giderimi de gereklilik haline gelmiştir. Bu bağlamda bilim insanları, etkili ve sürdürülebilir çözümler arayışındadır. Bu çalışmada, klasik aktif çamur prosesine sabit biyofilm entegre edilerek oluşturulan entegre biyolojik aktif çamur (EBAÇ) prosesi, ardışık kesikli reaktör (AKR) ile birleştirerek uygulanmıştır. EBAÇ-AKR sistemi, ardışık kesikli reaktöre, %40 doluluk hacminde hareketli destek materyali ilave edilerek anaerobik(An) / aerobik(Ox) / anoksik (Ox) faz sırası, 36 saat hidrolik bekleme süresi (HBS) ve 11.8 gün çamur yaşı (ÇY) ile işletilerek uygulanmıştır. Çalışma aşamalarında ortalama kimyasal oksijen ihtiyacı (KOI) %92.7, toplam azot (TN) %79.5 ve fosfat fosforu (PO4-P) giderimi %59.3 olarak elde edilmiştir. Deşarj kriterleri dikkate alındığında reaktör KOI ve TN gideriminde başarılı olurken P gideriminde yetersiz kalmıştır. EBAÇ-AKR reaktörü optimize edilmiş şartlarla atıksu standartlarını sağlama potansiyeli bulunmaktadır.

Anahtar Kelimeler

AKR, Arıtım, Atıksu, EBAÇ, Nütrient

Etik Beyan

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Destekleyen Kurum

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Proje Numarası

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Teşekkür

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Investigation of carbon, nitrogen and phosphorus removal with integrated fixed biofilm systems

Öz

Classical activated sludge systems have been used for over a century in domestic wastewater treatment. However, in recent years, not only carbon removal but also nitrogen and phosphorus removal have become essential for preserving water resources. In this context, scientists are searching for effective and sustainable solutions. In this study, the integrated biological activated sludge (IFAS) process, which is created by integrating fixed biofilm into the classical activated sludge process, was applied by combining it with a sequential batch reactor SBR). The IFAS-SBR system was applied in the sequencing batch reactor with a 40% volume fill ratio of moving support material, utilizing anaerobic (An)/aerobic (Ox)/anoxic (Ox) cycles, with a 36 hour hydraulic retention time (HRT) and an 11.8-day sludge retention time (SRT). During the operational phases, average removal efficiencies of 92.7% for chemical oxygen demand (COD), 79.5% for total nitrogen (TN), and 59.3% for phosphate phosphorus (PO4-P) were achieved. Considering discharge criteria, the reactor achieved successful COD and TN removal, but fell short in terms of phosphorus removal. The IFAS-SBR reactor, has the potential to meet wastewater standards under optimized conditions.

Anahtar Kelimeler

Treatment, Wastewater, IFAS, Nutrient, SBR

Proje Numarası

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Kaynakça

• Y. Shao, Y. Shi, A. Mohammed and Y. Liu, Wastewater ammonia removal using an integrated fixed-film activated sludge-sequencing batch biofilm reactor (IFAS-SBR): Comparison of suspended flocs and attached biofilm. International Biodeterioration & Biodegradation, 116, 38-47, 2017. https://doi.org/10. 1016/ j.ibiod.2016.09.026.
• H. Eslami, M. R. Samaei, E. Shahsavani and A. A. Ebrahimi, Biodegradation and fate of linear alkylbenzene sulfonate in integrated fixed-film activated sludge using synthetic media. Desalination and Water Treatment, 92, 128-133, 2017. 10.5004/dwt. 2017.21432.
• N. K. Singh and A. A. Kazmi, Environmental performance and microbial investigation of a single stage aerobic integrated fixed-film activated sludge (IFAS) reactor treating municipal wastewater. Journal of Environmental Chemical Engineering, 4(2), 2225-2237, 2016. https://doi.org/10.1016/j.jece.2016.04.001.
• G. Tchobanoglous, H. D. Stensel, R. Tsuchihashi, F. Burton, M. Abu-Orf, G. Bowden and W. Pfrang, Wastewater Engineering Treatment and Resource Recovery. 5th edn, McGraw-Hill, Inc., New York, USA., Fifth ed. McGraw-Hill Education, 2014.
• X. Xu, G.-h. Liu, Q. Li, H. Wang, X. Sun, Y. Shao, J. Zhang, S. Liu, F. Luo and Q. Wei, Optimization nutrient removal at different volume ratio of anoxic-to-aerobic zone in integrated fixed-film activated sludge (IFAS) system. Science of the Total Environment, 795, 148824, 2021. https://doi.org/10.1016/j.scitotenv.2021. 148824.
• D. Wang, J. Tao, F. Fan, R. Xu and F. Meng, A novel pilot-scale IFAS-MBR system with low aeration for municipal wastewater treatment: Linkages between nutrient removal and core functional microbiota. Science of The Total Environment, 776, 145858, 2021. https://doi.org/10.1016/j.scitotenv.2021.145858.
• T. Wu, J. Ding, S.-S. Yang, L. Zhong, B.-F. Liu, G.-J. Xie, F. Yang, J.-W. Pang and N.-Q. Ren, A novel cross-flow honeycomb bionic carrier promotes simultaneous nitrification, denitrification and phosphorus removal in IFAS system: Performance, mechanism and keystone species. Water Research, 225, 119132, 2022. https:// doi.org/10.1016/j.watres.2022.119132.
• W. Zhao and M. Bai, Upgrading integrated fixed-biofilm activated sludge (IFAS) system into separated two-sludge denitrifying phosphorus removal system: Nutrient removal and microbial structure. Chemosphere, 307, 135918, 2022. https://doi.org/10. 1016/j.chemosphere.2022.135918.
• Z. Ayman and M. Işık, Pharmaceutically active compounds in water, Aksaray, Turkey. CLEAN–Soil, Air, Water, 43(10), 1381-1388, 2015, https://doi.org/10. 1002/clen.201300877.
• J. Gu, G. Xu and Y. Liu, An integrated AMBBR and IFAS-SBR process for municipal wastewater treatment towards enhanced energy recovery, reduced energy consumption and sludge production. Water Research, 110, 262-269, 2017. https://doi.org/10.1016/j.watres. 2016.12.031.
• K1 PE03 biyofilm destek materyali özellikleri https://turkish.alibaba.com/p-detail/MBBR-16009885 96538.html?spm=a2700.details.0.0.715d5a87E4k8qZErişim tarihi 21 Haziran 2023.
• APHA/AWWA/WEF, American Public Health Association/American Water Works Association/ Water Environment Federation, Rodger B. Baird, Andrew D. Eaton, Eugene W. Rice (Editors), Standard Methods for the Examination of Water and Wastewater, 23rd Edition, Washington, D.C., American Public Health Association (APHA), 2017.
• T.C. Resmi Gazete, Kentsel Atıksu Arıtımı Yönetmeliği (26047), 08.01.2016. 2006.
• K. Sytek-Szmeichel, J. Podedworna and M. Zubrowska-Sudol, Efficiency of wastewater treatment in SBR and IFAS-MBSBBR systems in specified technological conditions. Water Science and Technology, 73(6), 1349-1356, 2016. https://doi.org/ 10. 2166/wst.2015.611.
• C. H. Chang and O. J. Hao, Sequencing batch reactor system for nutrient removal: ORP and pH profiles. Journal of Chemical Technology & Biotechnology: International Research in Process Environmental and Clean Technology, 67(1), 27-38, 1996. https://doi.org/ 10.1002/(SICI)1097-4660(199609)67:1%3C27::AID-JCTB430%3E3.0.CO;2-2.