Kinetic analysis of treatment of textile wastewater in hybrid column upflow anaerobic fixed bed reactor

Sandhya, S.; Swaminathan, K.

doi:10.1016/j.cej.2006.04.006

Cited by 76 publications

(35 citation statements)

References 28 publications

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“…For example, the values of U max and K B , respectively, were: for soybean wastewater, 83.3 and 85.5 g/l day [39]; for synthetic wastewater, 83.3 and 186.23 g/l day [40]; and for textile wastewater 31.69 and 45.37 g/l day [41].…”

Section: Kinetic Model Applicationmentioning

confidence: 99%

Anaerobic treatment of winery wastewater in fixed bed reactors

Ganesh

Rajagopal

Thanikal³

et al. 2009

Bioprocess Biosyst Eng

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The treatment of winery wastewater in three upflow anaerobic fixed-bed reactors (S9, S30 and S40) with low density floating supports of varying size and specific surface area was investigated. A maximum OLR of 42 g/l day with 80 +/- 0.5% removal efficiency was attained in S9, which had supports with the highest specific surface area. It was found that the efficiency of the reactors increased with decrease in size and increase in specific surface area of the support media. Total biomass accumulation in the reactors was also found to vary as a function of specific surface area and size of the support medium. The Stover-Kincannon kinetic model predicted satisfactorily the performance of the reactors. The maximum removal rate constant (U(max)) was 161.3, 99.0 and 77.5 g/l day and the saturation value constant (K(B)) was 162.0, 99.5 and 78.0 g/l day for S9, S30 and S40, respectively. Due to their higher biomass retention potential, the supports used in this study offer great promise as media in anaerobic fixed bed reactors. Anaerobic fixed-bed reactors with these supports can be applied as high-rate systems for the treatment of large volumes of wastewaters typically containing readily biodegradable organics, such as the winery wastewater.

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Section: Kinetic Model Applicationmentioning

confidence: 99%

Anaerobic treatment of winery wastewater in fixed bed reactors

Ganesh

Rajagopal

Thanikal³

et al. 2009

Bioprocess Biosyst Eng

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“…The modified Stover-kincannon model is widely used for analyzing experimental data from continuously operated systems, especially in continuously operated anaerobic systems 31,32 . The shore model is a commonly used mathematical model applied to determine kinetic constant values of immobilized systems 30 .…”

Section: Effect Of Flow Rates On Removal Of Bod 5 and Cod By Biofilmsmentioning

confidence: 99%

Removal of BOD5 and COD From Saline Wastewater Using Fixed Bed Column of Aspergillus Oryzae and Halobacillus Dabanensis

Ghaed

Marandi

Mazhar

2015

Curr. World Environ

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5-day BOD and COD can be removed by biological aerobic treatment of saline wastewater. In this research, halophilic microorganisms, namely Aspergillus oryzae and Halobacillus dabanensis were isolated from a return sludge basin of a wastewater treatment plant in the City of Bandar Abbas in southern Iran , that contained a Total Dissolved Solid (TDS) of about 7500 mg l -1 . These microorganisms (bacteria and fungi) could tolerate 20% concentration of salt (NaCl) in Sabouraud-4% dextrose agar and Sabouraud-2% dextrose broth medium and brain heart (BHI) agar and BHI broth medium. The films of Aspergillus oryzae and Halobacillus dabanensis were formed around the Caalginate. These bioflims were introduced to a fixed bed column, on top of which saline wastewater was released with flow rates of 2-6 ml min . The removal process in fixed bed column was stopped after 1200 minutes.

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“…However, textile factories discharge a large amount of dyestuffs containing wastewater (Cui et al, 2016b) with high chromaticity, which triggers severe environmental pollutions, such as biological toxicity, ''three-induced'' (carcinogenicity, teratogenicity, mutagenicity), unpleasant appearance, etc. Azo dye is the most widely used synthetic dyestuffs, about 10% of which are unemployed and discharged in aqueous effluent (Sandhya and Swaminathan, 2006). On account of aerobic stability of azo dye, anaerobic treatment processes are usually employed for decolorization to cater the subsequent mineralization (Shaul et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Efficient azo dye decolorization in a continuous stirred tank reactor (CSTR) with built-in bioelectrochemical system

Cui

Gao

et al. 2016

Bioresource Technology

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h i g h l i g h t sA newly designed CSTR-BES was developed for efficient azo dye removal. BES module took an important role for increasing decolorization rate. The effects of anaerobic sludge and acetate concentration were investigated. a r t i c l e i n f o t r a c tA continuous stirred tank reactor with built-in bioelectrochemical system (CSTR-BES) was developed for azo dye Alizarin Yellow R (AYR) containing wastewater treatment. The decolorization efficiency (DE) of the CSTR-BES was 97.04 ± 0.06% for 7 h with sludge concentration of 3000 mg/L and initial AYR concentration of 100 mg/L, which was superior to that of the sole CSTR mode (open circuit: 54.87 ± 4.34%) and the sole BES mode (without sludge addition: 91.37 ± 0.44%). The effects of sludge concentration and sodium acetate (NaAc) concentration on azo dye decolorization were investigated. The highest DE of CSTR-BES for 4 h was 87.66 ± 2.93% with sludge concentration of 12,000 mg/L, NaAc concentration of 2000 mg/L and initial AYR concentration of 100 mg/L. The results in this study indicated that CSTR-BES could be a practical strategy for upgrading conventional anaerobic facilities against refractory wastewater treatment.

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Kinetic analysis of treatment of textile wastewater in hybrid column upflow anaerobic fixed bed reactor

Cited by 76 publications

References 28 publications

Anaerobic treatment of winery wastewater in fixed bed reactors

Anaerobic treatment of winery wastewater in fixed bed reactors

Removal of BOD5 and COD From Saline Wastewater Using Fixed Bed Column of Aspergillus Oryzae and Halobacillus Dabanensis

Efficient azo dye decolorization in a continuous stirred tank reactor (CSTR) with built-in bioelectrochemical system

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