Membran Biyoreaktör ve Dinamik Membran Biyoreaktör Performansının Aynı Koşullarda Kıyaslanması

Year 2020, Issue: 18, 30 - 41, 15.04.2020

Metmet Akif Veral , Özer Çınar , Abdullah Kızılet

https://doi.org/10.31590/ejosat.619539

Cited By: 1

Abstract

Bu çalışma, sentetik atık
su arıtımı için aerobik membran biyoreaktörde (AeMBR), 0,45 µm ve dokuma
olmayan membran olmak üzere iki farklı membran modülünün karşılaştırmalı
değerlendirilmesini amaçlamaktadır. Her iki membran malzemesinin filtrasyon
performansları aynı operasyonel şartlar altında karşılaştırılmıştır. Filtreleme
işlemi boyunca, 0,45 µm ve dokuma olmayan membran olmak üzere sırasıyla %99 ve
% 95 KOİ giderim verimleri elde edilmiştr. AeMBR, 10 LMH'de başarıyla
işletilmiş ve 30 gün boyunca hiçbir şekilde kimyasal yıkama uygulanmamıştır. Reaktör,
15 LMH akıya kadar mükemmel bir şekilde işletilmi ve sonra 20 LMH’de işletime
devam edilmiştir. 0.45 µm membranın bulanıklık ve trans-membran basıncı
değerleri, dokuma olmayan membrana nispeten başlarda genellikle yüksek sonuçlar
vermiştir. Membranlar üzerinde oluşan kek tabakasının karakteristik
özelliklerini belirlemek üzere kapiler emme süresi (CST), çözünür mikrobiyal
ürün (SMP), hücre dışı polimerik bileşenler (EPS), süzülmeye karşı spesifik
direnç (SRF), fourier dönüştürülmüş kızılötesi spektroskopisi (ATR FT-IR) ve
denatüre gradyan jel elektroforezi (DGGE) aanalizleri yapılmıştır. 16S rDNA
bölgesi, hava/ortam sıcaklığı değişikliği açısından önemli sonuç göstermiştir.
Her iki membran modülü için, sırasıyla NaOCl ve sülfürik asit ile yapılan kimyasal
temizleme istihdamı, neredeyse tamamen tıkanmaları ortadan kaldırmış ve
kimyasal olarak yıkanmış membranların, yeni membranlarınkine yakın basınç
gösterdiği bulunmuştur.

Keywords

Dinamik membran biyoreaktör, dokuma olmayan, 0.45 μm membrane, biyolojik arıtım, KOİ giderimi, PES

Supporting Institution

Yıldız Teknik Üniversitesi

Project Number

FYL-2017-3108

Membrane Bioreactor and Dynamic Membrane Bioreactor Performance Comparison Under the Same Conditions

Abstract

This study aims comparative evaluation of two
different membrane modules, 0.45 µm and non-woven dynamic membrane, in AeMBR
for synthetic wastewater treatment. Filtration performances of both membrane
materials were compared under same operational conditions. Throughout the
filtration process, 99% and 95% COD removal efficiencies were achieved relying
upon 0.45 µm and non-woven dynamic membrane, respectively. AeMBR was
successfully operated at 10 LMH and no chemical cleaning was employed for 30
days. It was perfectly operated up to 15 LMH and then 20 LMH. The turbidity and
trans-membrane pressure (TMP) of 0.45 µm was usually higher at the begging
compared with the dynamic membrane despite membrane clogging rates were
comparable. Capillary suction time (CST), soluble microbial product (SMP),
extracellular polymeric substances (EPS), specific resistance to filterability
(SRF), attenuated total reflectance fourier transformed-infrared spectroscopy
(ATR FT-IR) and denaturing gradient gel electrophoresis (DGGE) analyzes were
performed to understand the characterization of the cake deposited on
membranes. 16S rDNA region shown significant result in terms of air/ambient
temperature change. For both membrane modules, offline chemical cleaning
employment with NaOCl and sulfuric acid, respectively, almost completely
eliminated foulants and it was found that chemically washed membranes showed
pressure close to that of the new membrane.

Keywords

Dynamic membrane bioreactor, non-woven, 0.45 μm membrane, biological treatment, COD removal, PES

Project Number

FYL-2017-3108

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