Tekstil endüstrisinde bütünleþik membran sistemi ile su geri kazanýmý ve hibrit ileri oksidasyon/membran filtrasyonu ile konsantrelerin arýtýmý ve yönetimi

Bu çalýþmada, etkinliði bilinen UF/NFsýký/TO membran kombinasyonu ile tekstil atýksularýnýn arýtýmýnýn yanýsýra %75-80 su geri kazaným oraný dahilinde oluþan membran konsantrlerinin bütünleþik ileri oksidasyon prosesi (Fenton ve foto-Fenton (UVA-365 – UVC-254)/batýk UF sistemi ile daha önce belirlenen optimum iþletme þartlarýnda oksidasyona tabi tutularak yönetimi gerçekleþtirilmiþtir. Yapýlan deneysel çalýþmalar sonucunda, UF/NFsýký/TO membran konfigürasyonu ile arýtýmý sonucunda oluþan konsantre akýmlarýnýn Fenton, foto-Fenton (UVA-365) ve (UVC-254) prosesleri ile oksidasyonu sonras, ardýþýk iþletimli foto-Fenton (UVC-254)/UH050 hibrit prosesinin 9.88 H2O2/TOK ve 7.27 H2O2/Fe2+ oranlarýnda, 44.16 L/m2.sa’ lik süzüntü akýsýnda %86 KOÝ giderimi ile KOÝ deðeri 167 mg/L’ ye ve %74.2 TOK giderimi ile TOK deðeri 104 mg/L’ ye kadar düþürülerek en iyi performans gösteren yenilikçi proses olduðu sonucuna varýlmýþtýr. Oluþan membran konsantrelerin oksidasyonu sonrasýnda kalan konsantrenin tehlikelilik özellikleri, bertaraf/geri kazaným yöntemleri ve yeniden kullaným alternatifleri deðerlendirildiðinde tekstil endüstrisi atýksularýnýn foto-Fenton (UVA-365) ile arýtýmý sonucunda oluþan konsantre haricinde diðer tüm konsantrelerin tehlikeli özelliðine sahip olduðu görülmüþtür. Konsantrelerin bertaraf/geri kazaným yöntemleri ayrýntýlý olarak deðerlendirildiðinde, gerekli düzenlemeler (nem içeriði, susuzlaþtýrma, uygun debi ve/veya karýþým oranlarý) yapýldýðý takdirde bu konsantrelerin düzenli depolama, yakma ve merkezi atýksu arýtma sistemine verme gibi seçeneklerle bertaraf edilebileceði sonucuna varýlmýþtýr.

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

In this study, in addition to textile wastewater treatment by UF/NFtight/TO membrane combination of which efficiency is known, management has been performed on 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 44.16 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) 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.