Treatment of Textile Dyes by Bio-chemical Process in Stirred Tank Sequencing Batch Bioreactor (STSBBR)

A bacterial isolate Pseudomonas sp. was isolated from the solid waste slump collected from a local duping site of Sylhet district and was efficiently utilized for the removal of dye (Orange 3R) from simulated synthetic waste water in a lab scale Stirred Tank Sequencing Batch Bioreactor (STSBBR) in batch mode. A reactor with 2 L capacity (working volume 0.5 L) equipped with suitable control means and stirring mechanism was operated at room temperature and pH 6.6 ± 1 in fill-react-settling-draw mode with different initial dye concentrations (50, 100, 150, 200 & 300 ppm) where the hydraulic retention time was maintained for 12-72 hours depending on the adaptation of waste water by the bacterial strain. The efficiency of the reactor was analyzed with respect to three strands and found to be negative correlation with the concentration of the dye. Overall color, COD, and BOD in the Stirred tank bioreactor system (STSBBR) were removed by 49.67, 37.45 and 33.89%, respectively with 50 ppm dye concentration and HRT of 24 h. The efficiency of the reactor was found to be in negative correlation with the concentration of the dye. This STSBBR system was found very effective for efficient biological treatment of such dyeing industry waste water by the bacterial strain Pseudomonas sp. DOI: http://dx.doi.org/10.3329/jce.v27i2.17808 Journal of Chemical Engineering, IEB Vol. ChE. 27, No. 2, December 2012: 77-82

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Batch and Semi-Continuous Anaerobic Digestion of Industrial Solid Citrus Waste for the Production of Bioenergy

Processes ◽

10.3390/pr9040648 ◽

2021 ◽

Vol 9 (4) ◽

pp. 648

Author(s):

Erik Samuel Rosas-Mendoza ◽

Andrea Alvarado-Vallejo ◽

Norma Alejandra Vallejo-Cantú ◽

Raúl Snell-Castro ◽

Sergio Martínez-Hernández ◽

...

Keyword(s):

Anaerobic Digestion ◽

Oxygen Demand ◽

Continuous Mode ◽

Citrus Industry ◽

Batch Mode ◽

Volatile Solids ◽

Working Volume ◽

Plant Level ◽

Citrus Waste ◽

Mesophilic Conditions

The aim of this paper is to describe a study of the anaerobic digestion of industrial citrus solid waste (ISCW) in both batch and semi-continuous modes for the production of bioenergy without the elimination of D-limonene. The study was conducted at the pilot plant level in an anaerobic reactor with a working volume of 220 L under mesophilic conditions of 35 ± 2 °C. Cattle manure (CM) was used as the inoculum. Three batches were studied. The first batch had a CM/ISCW ratio of 90/10, and Batches 2 and 3 had CM/ISCW ratios of 80/20 and 70/30, respectively. In the semi-continuous mode an OLR of approximately 8 g total chemical oxygen demand (COD)/Ld (4.43 gVS/Ld) was used. The results showed that 49%, 44%, and 60% of volatile solids were removed in the batch mode, and 35% was removed in the semi-continuous mode. In the batch mode, 0.322, 0.382, and 0.316 LCH4 were obtained at STP/gVSremoved. A total of 24.4 L/d (34% methane) was measured in the semi-continuous mode. Bioenergy potentials of 3.97, 5.66, and 8.79 kWh were obtained for the respective batches, and 0.09 kWh was calculated in the semi-continuous mode. The citrus industry could produce 37 GWh per season. A ton of processed oranges has a bioenergy potential of 162 kWh, which is equivalent to 49 kWh of available electricity ($3.90).

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Dynamical simulation of a continuous stirred tank bioreactor with the use of cellular automata for the biofilm description

Chemical Engineering Research and Design ◽

10.1016/j.cherd.2021.02.019 ◽

2021 ◽

Vol 168 ◽

pp. 264-274

Author(s):

Szymon Skoneczny ◽

Monika Cioch-Skoneczny

Keyword(s):

Cellular Automata ◽

Stirred Tank ◽

Stirred Tank Bioreactor ◽

Dynamical Simulation ◽

Continuous Stirred Tank

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High level production of laccases and peroxidases from the newly isolated white-rot basidiomycete Marasmiellus palmivorus VE111 in a stirred-tank bioreactor in response to different carbon and nitrogen sources

Process Biochemistry ◽

10.1016/j.procbio.2018.03.005 ◽

2018 ◽

Vol 69 ◽

pp. 1-11 ◽

Cited By ~ 15

Author(s):

Willian Daniel Hahn Schneider ◽

Roselei Claudete Fontana ◽

Simone Mendonça ◽

Félix Gonçalves de Siqueira ◽

Aldo José Pinheiro Dillon ◽

...

Keyword(s):

Nitrogen Sources ◽

White Rot ◽

Stirred Tank ◽

Carbon And Nitrogen Sources ◽

Stirred Tank Bioreactor ◽

Carbon And Nitrogen ◽

High Level ◽

Level Production

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Utilisation of winery wastewater for xanthan production in stirred tank bioreactor: Bioprocess modelling and optimisation

Food and Bioproducts Processing ◽

10.1016/j.fbp.2019.06.019 ◽

2019 ◽

Vol 117 ◽

pp. 113-125 ◽

Cited By ~ 3

Author(s):

Zorana Rončević ◽

Jovana Grahovac ◽

Siniša Dodić ◽

Damjan Vučurović ◽

Jelena Dodić

Keyword(s):

Stirred Tank ◽

Stirred Tank Bioreactor ◽

Winery Wastewater ◽

Xanthan Production

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Production of Newcastle Disease Virus by Vero Cells Grown on Cytodex 1 Microcarriers in a 2-Litre Stirred Tank Bioreactor

Journal of Biomedicine and Biotechnology ◽

10.1155/2010/586363 ◽

2010 ◽

Vol 2010 ◽

pp. 1-7 ◽

Cited By ~ 15

Author(s):

Mohd Azmir Arifin ◽

Maizirwan Mel ◽

Mohamed Ismail Abdul Karim ◽

Aini Ideris

Keyword(s):

Cell Culture ◽

Newcastle Disease Virus ◽

Disease Virus ◽

Newcastle Disease ◽

High Speed ◽

Virus Titer ◽

Vero Cells ◽

Stirred Tank ◽

Stirred Tank Bioreactor ◽

Maximum Cell

The aim of this study is to prepare a model for the production of Newcastle disease virus (NDV) lentogenic F strain using cell culture in bioreactor for live attenuated vaccine preparation. In this study, firstly we investigated the growth of Vero cells in several culture media. The maximum cell number was yielded by culture of Vero cells in Dulbecco's Modified Eagle Medium (DMEM) which was1.93×106 cells/ml. Secondly Vero cells were grown in two-litre stirred tank bioreactor by using several commercial microcarriers. We achieved the maximum cell concentration about7.95×105 cells/ml when using Cytodex 1. Later we produced Newcastle Disease virus in stirred tank bioreactor based on the design developed using Taguchi L4 method. Results reveal that higher multiplicity of infection (MOI) and size of cell inoculums can yield higher virus titer. Finally, virus samples were purified using high-speed centrifugation based on3∗∗(3-1) Fractional Factorial Design. Statistical analysis showed that the maximum virus titer can be achieved at virus sample concentration of 58.45% (v/v), centrifugation speed of 13729 rpm, and centrifugation time of 4 hours. As a conclusion, high yield of virus titer could be achieved through optimization of cell culture in bioreactor and separation by high-speed centrifugation.

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