Conventional and sonication-assisted biosorption of Remazol Orange RGB dye by active kefir biomass

Hatice Mutlu; Dilek Apar

Makale detayları

Conventional and sonication-assisted biosorption of Remazol Orange RGB dye by active kefir biomass

Yazarlar:

Hatice Mutlu | Dilek Apar

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.38 Issue 4, pp.1979-1994

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001287692

pISSN:

1300-1884

Anahtar kelimeler:

Özet:

 Conventional and sonication-assisted biosorption of Remazol Orange RGB RO dye from aqueous solutions with active kefir biomass was investigated. SEM, FTIR and BET analyses were used to characterise the biomass. Biosorption experiments were carried out in batch mode and the effects of pH, initial dye concentration and temperature on dye removal were examined. Biosorption of dye increased with the rise in temperature and the reduce in initial pH and initial concentration of dye in both processes. At all examined process conditions due to the assistance of sonication higher biosorption yields were obtained and the time for biosorption to reach equilibrium was significantly reduced. 74.62 and 95.18 dye removals were achived at pH 2, initial dye concentration of 100 mg L-1 and 25C for conventional and sonication assisted biosorption that the equilibrium was attained respectivly in 210 and 45 minutes. Modelling studies showed that the biosorption kinetics of dye by conventional and sonication assisted process could be expressed respectively with the pseudo first and pseudo second order models, while the biosorption equilibrium for both processes could be expressed with the Langmuir isotherm model. The results demonstrated that the kefir biomass is an effective biosorbent for dye removal and sonication is an effective and useful method to improve the biosorption processes with living organisms.

 Conventional and sonication-assisted biosorption of Remazol Orange RGB RO dye from aqueous solutions with active kefir biomass was investigated. SEM, FTIR and BET analyses were used to characterise the biomass. Biosorption experiments were carried out in batch mode and the effects of pH, initial dye concentration and temperature on dye removal were examined. Biosorption of dye increased with the rise in temperature and the reduce in initial pH and initial concentration of dye in both processes. At all examined process conditions due to the assistance of sonication higher biosorption yields were obtained and the time for biosorption to reach equilibrium was significantly reduced. 74.62 and 95.18 dye removals were achived at pH 2, initial dye concentration of 100 mg L-1 and 25C for conventional and sonication assisted biosorption that the equilibrium was attained respectivly in 210 and 45 minutes. Modelling studies showed that the biosorption kinetics of dye by conventional and sonication assisted process could be expressed respectively with the pseudo first and pseudo second order models, while the biosorption equilibrium for both processes could be expressed with the Langmuir isotherm model. The results demonstrated that the kefir biomass is an effective biosorbent for dye removal and sonication is an effective and useful method to improve the biosorption processes with living organisms.

 Conventional and sonication-assisted biosorption of Remazol Orange RGB RO dye from aqueous solutions with active kefir biomass was investigated. SEM, FTIR and BET analyses were used to characterise the biomass. Biosorption experiments were carried out in batch mode and the effects of pH, initial dye concentration and temperature on dye removal were examined. Biosorption of dye increased with the rise in temperature and the reduce in initial pH and initial concentration of dye in both processes. At all examined process conditions due to the assistance of sonication higher biosorption yields were obtained and the time for biosorption to reach equilibrium was significantly reduced. 74.62 and 95.18 dye removals were achived at pH 2, initial dye concentration of 100 mg L-1 and 25C for conventional and sonication assisted biosorption that the equilibrium was attained respectivly in 210 and 45 minutes. Modelling studies showed that the biosorption kinetics of dye by conventional and sonication assisted process could be expressed respectively with the pseudo first and pseudo second order models, while the biosorption equilibrium for both processes could be expressed with the Langmuir isotherm model. The results demonstrated that the kefir biomass is an effective biosorbent for dye removal and sonication is an effective and useful method to improve the biosorption processes with living organisms.

 Aktif kefir biyokütleleri ile Remazol Turuncu RGB RO boyar maddesinin sulu çözeltilerden konvansiyonel ve sonikasyon destekli biyosorpsiyon yöntemleri ile giderimi incelenmiştir. Kefir biyokütlesi SEM, FTIR ve BET analizleri ile karakterize edilmiştir. Biyosorpsiyon deneyleri kesikli olarak gerçekleştirilmiş ve pH, başlangıç boyar madde konsantrasyonu ve sıcaklığın boyar madde giderimi üzerindeki etkileri araştırılmıştır. RO boyar maddesinin gideriminin iki biyosorpsiyon prosesinde de sıcaklığın artması, başlangıç pH değerinin ve başlangıç boyar madde konsantrasyonunun azalması ile arttığı belirlenmiştir. Çalışılan tüm proses koşullarında konvansiyonel biyosorpsiyon yöntemine kıyasla sonikasyon destekli biyosorpsiyon ile daha yüksek boyar madde giderim verimleri elde edilmiş ve biyosorpsiyonun dengeye ulaşma süreleri önemli ölçüde azalmıştır. pH 2 değerinde, 25C sıcaklık ve 100 mgL başlangıç boyar madde konsantrasyonunda, konvansiyonel ve sonikasyon destekli biyosorpsiyon işlemleri ile sırası ile  74,62 ve  95,18 boyar madde giderimi elde edilmiş ve biosorpsiyonların dengeye sırası ile 210 ve 45 dakikada ulaştığı gözlemlenmiştir. Gerçekleştirilen modelleme çalışmaları sonucunda konvansiyonel biyosorpsiyon prosesinin yalancı-birinci mertebe kinetik modeli ile, sonikasyon destekli biyosorpsiyon prosesinin yalancı-ikinci mertebe kinetik modeli ile, biyosorpsiyon dengesinin ise her iki proses için de Langmuir izoterm modeli ile ifade edilebileceği saptanmıştır. Çalışma sonuçları kefir biyokütlelerinin boyar madde giderimi için iyi bir biosorbent, sonikasyonun canlı organizmalarla biyosorpsiyon proseslerinin iyileştirilmesi için etkili ve yararlı bir yöntem olduğunu göstermiştir.

Makale detayları

Conventional and sonication-assisted biosorption of Remazol Orange RGB dye by active kefir biomass

Yazarlar:

Hatice Mutlu | Dilek Apar

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.38 Issue 4, pp.1979-1994

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001287692

pISSN:

1300-1884

dye

biosorption

kefir biomass

sonication

kinetics

isothermBoyar madde

biyosorpsiyon

kefir biyokütlesi

sonikasyon

kinetik

izoterm

Sayı

Makale detayları

Yazarlar: Hatice Mutlu | Dilek Apar

Yayıncı: Gazi University

Ana Başlıklar: Mühendislik

Dergi: Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.38 Issue 4, pp.1979-1994

Belge Tipi: Makale

Yayın Tarihi: 12/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001287692

pISSN: 1300-1884

Sayı

Yazarlar:

Hatice Mutlu | Dilek Apar

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.38 Issue 4, pp.1979-1994

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001287692

pISSN:

1300-1884