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Journals / Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi / 2018 / Cilt: 24 - Sayı: 3

Water recovery with combined membrane system in textile industry, treatment and management of concentrates by hybrid advanced oxidation/membrane filtration

Tekstil endüstrisinde bütünleşik membran sistemi ile su geri kazanımı ve hibrit ileri oksidasyon/membran filtrasyonu ile konsantrelerin arıtımı ve yönetimi

Berna KIRIL MERT
Esra C. DOĞAN
Esin BALCI
Yasemin M. TİLKİ
Şeyda AKSU
Ayşegül Y. GÖREN
Coşkun AYDINER
Pages
468–475
Publication Date
2018-06-29
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

When hazardous characteristics, removal/recovery methods and reuse alternatives of the concentrate remained after the oxidation of membrane concentrates generated were evaluated, it has been seen that all other concentrates of textile industry wastewater, except the concentrate generated by the treatment with photo-Fenton (UVA-365), had characteristics of hazardousness When removal/recovery methods were evaluated in detail, the conclusion has been reached that these concentrates could be removed with alternative options such as regular storage, burning and canalizing to central wastewater treatment system as long as necessary arrangements (moisture content, dehydration, suitable flow and/or mixture ratios) are made.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, in addition to textile wastewater treatment by UF/NFtight/TO membrane combination of which efficiency is known, management has been performed for membrane concentrates generated with advanced oxidation combined process (Fenton and photo-Fenton (UVA-365–UVC-254))/submerged UF system of membrane concentrates generated within 75-80% water recovery ratio by oxidizing them in optimum operating conditions which were determined before.
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Key Findings & Data:Ultimately in the studies, the conclusion has been reached that concentrate flows, generated as a result of the treatment with UF/NFtight/TO membrane configuration, were the highest performance innovative process by decreasing the sequential operated photo-Fenton (UVC-254)/UH050 hybrid process in ratios of 9.88 H2O2/TOK and 7.27 H2O2/Fe2+, in the filtration flux of 44 L/m2.h, COD value to 167 mg/L with 86% COD removal, and TOK value to 104 mg/L with 74.2% TOC removal, after the oxidation with Fenton, photo-Fenton (UVA-365) and (UVC-254)/ submerged UF system processes.
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Conclusion & Impact:When hazardous characteristics, removal/recovery methods and reuse alternatives of the concentrate remained after the oxidation of membrane concentrates generated were evaluated, it has been seen that all other concentrates of textile industry wastewater, except the concentrate generated by the treatment with photo-Fenton (UVA-365), had characteristics of hazardousness When removal/recovery methods were evaluated in detail, the conclusion has been reached that these concentrates could be removed with alternative options such as regular storage, burning and canalizing to central wastewater treatment system as long as necessary arrangements (moisture content, dehydration, suitable flow and/or mixture ratios) are made.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Tekstil atıksuyu · Bütünleşik İOP/Membran sistemi · Su geri kazanımı

Abstract

In this study, in addition to textile wastewater treatment by UF/NFtight/TO membrane combination of which efficiency is known, management has been performed for membrane concentrates generated with advanced oxidation combined process (Fenton and photo-Fenton (UVA-365–UVC-254))/submerged UF system of membrane concentrates generated within 75-80% water recovery ratio by oxidizing them in optimum operating conditions which were determined before. Ultimately in the studies, the conclusion has been reached that concentrate flows, generated as a result of the treatment with UF/NFtight/TO membrane configuration, were the highest performance innovative process by decreasing the sequential operated photo-Fenton (UVC-254)/UH050 hybrid process in ratios of 9.88 H2O2/TOK and 7.27 H2O2/Fe2+, in the filtration flux of 44 L/m2.h, COD value to 167 mg/L with 86% COD removal, and TOK value to 104 mg/L with 74.2% TOC removal, after the oxidation with Fenton, photo-Fenton (UVA-365) and (UVC-254)/ submerged UF system processes. When hazardous characteristics, removal/recovery methods and reuse alternatives of the concentrate remained after the oxidation of membrane concentrates generated were evaluated, it has been seen that all other concentrates of textile industry wastewater, except the concentrate generated by the treatment with photo-Fenton (UVA-365), had characteristics of hazardousness When removal/recovery methods were evaluated in detail, the conclusion has been reached that these concentrates could be removed with alternative options such as regular storage, burning and canalizing to central wastewater treatment system as long as necessary arrangements (moisture content, dehydration, suitable flow and/or mixture ratios) are made.

Özet

Bu çalışmada, etkinliği bilinen UF/NFsıkı/TO membran kombinasyonu ile tekstil atıksularının arıtımının yanısıra %75-80 su geri kazanım oranı dahilinde oluşan membran konsantrelerinin, bütünleşik ileri oksidasyon prosesi (Fenton ve foto-Fenton (UVA-365–UVC-254))/batık UF sistemi ile daha önce belirlenen optimum işletme şartlarında oksidasyona tabi tutularak yönetimi gerçekleştirilmiştir. Yapılan deneysel çalışmalar sonucunda, UF/NFsıkı/TO membran konfigürasyonu ile arıtımı sonucunda oluşan konsantre akımlarının Fenton, foto-Fenton (UVA-365) ve (UVC-254) prosesleri/batık UF sistemi ile oksidasyonu sonrası, ardışık işletimli foto-Fenton (UVC-254)/UH050 hibrit prosesinin 9.88 H2O2/TOK ve 7.27 H2O2/Fe2+ oranlarında, 44 L/m2.sa’lik süzüntü akısında %86 KOİ giderimi ile KOİ değeri 167 mg/L’ye ve %74.2 TOK giderimi ile TOK değeri 104 mg/L’ye kadar düşürülerek en iyi performans gösteren yenilikçi proses olduğu sonucuna varılmıştır. Oluşan membran konsantrelerin oksidasyonu sonrasında kalan konsantrenin tehlikelilik özellikleri, bertaraf/geri kazanım yöntemleri ve yeniden kullanım alternatifleri değerlendirildiğinde tekstil endüstrisi atıksularının foto-Fenton (UVA-365) ile arıtımı sonucunda oluşan konsantre haricinde diğer tüm konsantrelerin tehlikeli özelliğine sahip olduğu görülmüştür. Konsantrelerin bertaraf/geri kazanım yöntemleri ayrıntılı olarak değerlendirildiğinde, gerekli düzenlemeler (nem içeriği, susuzlaştırma, uygun debi ve/veya karışım oranları) yapıldığı takdirde bu konsantrelerin düzenli depolama, yakma ve merkezi atıksu arıtma sistemine verme gibi seçeneklerle bertaraf edilebileceği sonucuna varılmıştır.

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Cite This Article

MERT, B. K., DOĞAN, E. C., BALCI, E., TİLKİ, Y. M., AKSU, Ş., GÖREN, A. Y., AYDINER, C. (2018). Water recovery with combined membrane system in textile industry, treatment and management of concentrates by hybrid advanced oxidation/membrane filtration. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 24 - Sayı: 3, 468–475. https://ajindex.com/articles/42360

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