Decolorization and partial degradation of monoazo dyes in sequential fixed-film anaerobic batch reactor (SFABR)

P Singh, R Sanghi, A Pandey, L Iyengar - Bioresource technology, 2007 - Elsevier
Decolorization of two monoazo dyes, acid orange 6 (AO6) and acid orange 7 (AO7), were
studied in sequential fixed-film anaerobic batch reactor (SFABR) with varying dye …

Factors affecting bio-decolorization of azo dyes and COD removal in anoxic–aerobic REACT operated sequencing batch reactor

WA Al-Amrani, PE Lim, CE Seng, WSW Ngah - Journal of the Taiwan …, 2014 - Elsevier
The main objective of this study was to investigate the effects of (i) time ratios of operating
periods;(ii) azo dye molecular structure and (iii) presence/absence of co-substrate on the …

Decolorization of azo dyes under batch anaerobic and sequential anaerobic/aerobic conditions

M Işık, DT Sponza - Journal of Environmental Science and Health …, 2004 - Taylor & Francis
Batch anaerobic and sequential anaerobic upflow anaerobic sludge blanket (UASB)/aerobic
continuous stirred tank reactor (CSTR) were used to determine the color and COD removals …

Metabolic phasing of anoxic-PDBR for high rate treatment of azo dye wastewater

CN Reddy, AN Kumar, SV Mohan - Journal of hazardous materials, 2018 - Elsevier
The treatment of azo dye wastewater was studied in a periodic discontinuous batch reactor
(PDBR) at high loading condition (1250 mg/l) under anoxic microenvironments. PDBR …

Sequential anaerobic–aerobic treatment of azo dyes: decolourisation and amine degradability

M Jonstrup, N Kumar, M Murto, B Mattiasson - Desalination, 2011 - Elsevier
The feasibility of sequential anaerobic–aerobic treatment for complete dye degradation was
evaluated using three azo dyes, namely Remazol Red RR, Remazol Blue RR and Remazol …

Biological decolorization of reactive azo dye by anaerobic/aerobic-sequencing batch reactor system

H Koçyigit, A Uğurlu - 2015 - acikerisim.aksaray.edu.tr
This study aims to investigate the removal of a reactive azo dye (Reactive Red 198) in
anaerobic/aerobic sequencing batch reactors (SBR). The total volume of the SBR system …

Effects of alkalinity and co-substrate on the performance of an upflow anaerobic sludge blanket (UASB) reactor through decolorization of Congo Red azo dye

M Işık, DT Sponza - Bioresource Technology, 2005 - Elsevier
The effect of substrate (glucose) concentrations and alkalinitiy (NaHCO3) on the
decolorization of a synthetic wastewater containing Congo Red (CR) azo dye was …

A Performance Comparison of Anaerobic and an Integrated Anaerobic‐Aerobic Biological Reactor System for the Effective Treatment of Textile Wastewater

TM Kathawala, KV Gayathri… - International Journal of …, 2021 - Wiley Online Library
The accumulation of recalcitrant azo dyes from untreated textile effluents has adversely
impacted the ecosystem. The immense stability in their nature is conferred by the presence …

Effect of redox mediator, AQDS, on the decolourisation of a reactive azo dye containing triazine group in a thermophilic anaerobic EGSB reactor

AB Dos Santos, FJ Cervantes, RE Yaya-Beas… - Enzyme and Microbial …, 2003 - Elsevier
The feasibility of thermophilic (55° C) anaerobic treatment applied to colour removal of a
triazine contained reactive azo dye was investigated in two 0.53 l expanded granular sludge …

Effective anaerobic decolorization of azo dye Acid Orange 7 in continuous upflow packed-bed reactor using biological activated carbon system

G Mezohegyi, A Kolodkin, UI Castro… - Industrial & …, 2007 - ACS Publications
The anaerobic reduction of azo dye Acid Orange 7 (AO7) was investigated in a continuous
upflow packed-bed reactor (UPBR) containing biological activated carbon (BAC) …