Application of a fluidized bed bioreactor for cod reduction in textile industry effluents

Souza, Sabrina da Silva de; Brandão, H.L.; Zamporlini, Israel Muller; Soares, Hugo Moreira; Souza, Selene de Arruda Guelli Ulson de Maria

doi:10.1016/j.resconrec.2007.06.004

Cited by 28 publications

(5 citation statements)

References 14 publications

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“…The microorganism P.fluorescens (MTCC 103) was chosen since it has the potential to degrade phenol using it as the sole carbon and energy source . The preliminary stage of upstream processing work started with reviving the host by subsequent streaking of a mother culture of P.fluorescens on a Pseudomonas agar slant and keeping it for incubation at 28°C for 2 days.…”

Section: Methodsmentioning

confidence: 99%

Gas–liquid mass transfer studies in inverse fluidized bed biofilm reactor for the biodegradation of industrial effluent rich in phenolic compounds

Begum¹,

Radha

2015

Env Prog and Sustain Energy

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Gas-liquid mass transfer studies were carried out in inverse fluidized bed biofilm reactor (IFBBR) for the biodegradation of phenol. Studies were done to analyze the effect of superficial air velocity (U g ), gas holdup (E g ), and biofilm characteristics such as biofilm thickness, biofilm dry density, suspended and attached biomass concentration, and bioparticle density on oxygen transfer rate (OTR) and gas-liquid volumetric mass transfer coefficient (k L a) for different superficial air velocities and various particle sizes (2.9, 3.5, and 3.8 mm). Average OTR and k L a was found to be high [(OTR) avg. 5 0.0159 min 21 ; (k L a) avg. 5 1.8823 g/(L min)] for the particle size of 3.5 mm at the optimum superficial air velocity (U gm ) of 0.220 m/s which created high turbulence with smaller bubble size. Higher volumetric mass transfer coefficient and OTR resulted in higher percentage of Chemical Oxygen Demand (COD) removal (98%) and phenol degradation (100%) in IFBBR. The gas holdup dominated over the smaller size bubbles resulting in higher mass (oxygen) transfer rate. Thin, dense, and stable biofilm was produced at U gm . Above U gm , thickness of the biofilm was increased where the detachment force did not control the outgrowth of biofilm anymore and thus the k L a was found to be decreasing. V C 2015 American Institute of Chemical Engineers Environ Prog, 35: 433-438, 2016

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Section: Methodsmentioning

confidence: 99%

Gas–liquid mass transfer studies in inverse fluidized bed biofilm reactor for the biodegradation of industrial effluent rich in phenolic compounds

Begum¹,

Radha

2015

Env Prog and Sustain Energy

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“…The preliminary stage of upstream processing work started with reviving the host by subsequent streaking of a mother culture of P. fluorescens on a Pseudomonas agar slant (a differential medium for fluorescein production) and keeping it for incubation at 28 • C for 2 days, until a definite quantum of pigment was produced in various subcultures (Ulson de Souza et al 2008;Souza et al 2004). A primary culture was prepared by transferring two loops full of microorganisms from the agar slant into 100 ml of feed medium containing 20 ml of mineral salt medium (Agarry and Solomon 2008) and 80 ml of phenol from its respective substrate concentration (400, 600, 800, 1000, and 1200 mg/L) in four 250-ml conical flasks.…”

Section: Materials and Methods Microorganism And Inoculum Preparationmentioning

confidence: 99%

Biodegradation Kinetic Studies on Phenol in Internal Draft Tube (Inverse Fluidized Bed) Biofilm Reactor UsingPseudomonas fluorescens: Performance Evaluation of Biofilm and Biomass Characteristics

Begum

Radha

2013

Bioremediation Journal

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The bioremediation potential of Pseudomonas fluorescens was studied in an internal draft tube (inverse fluidized bed) biofilm reactor (IDTBR) under batch recirculation conditions using synthetic phenol of various concentrations (400, 600, 800, 1000, and 1200 mg/L). The performance of IDTBR was investigated and the characteristics of biomass and biofilm were determined by evaluating biofilm dry density and thickness, bioparticle density, suspended and attached biomass concentration, chemical oxygen demand, and phenol removal efficiency. Biodegradation kinetics had been studied for the suspended biomass culture and biofilm systems. Suspended biomass followed substrate inhibition kinetics, and the experimental data fitted well with the Haldane model. The correlation coefficient, R 2 , and root-mean-square error (RMSE) obtained for the Haldane model with respect to specific growth rate were .9389 and .00729, respectively, and with respect to specific phenol consumption rate were .9259 and .00972, respectively. It was also observed experimentally that biofilm overcame substrate inhibition effect and fitted the same to the Monod model (R 2 = .9831, RMSE = .00884 for specific growth rate and R 2 = .9686, RMSE = .00912 for specific phenol consumption rate).

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“…The elimination level of BOD and COD, which is between 80 and 85%, is accomplished by the breakdown of soluble organics by bacteria [41]. Suspended and attached growth processes are two examples of typical bioprocesses that may be used for the treatment of wastewater from the textile industry [61]. The effectiveness of biological treatment is affected by a variety of parameters, including organic loading, the concentration of microorganisms, temperature, the presence of hazardous chemicals, nutrition levels, and oxygen content [5].…”

Section: Secondary Treatmentmentioning

confidence: 99%

“…Except for the membrane clogging problem and screened feed stream requirement, this reactor is a very good option for the biological treatment of wastewater which can operate with high sludge concentration. Moreover, aerobic fluidized bed bioreactors are capable of handling a large volume of wastewater with a lesser retention time [61,76]. This reactor has found good application in treating hospital wastewater, removing nitrate from petroleum industry-produced wastewater, etc.…”

Section: Secondary Treatmentmentioning

confidence: 99%

A Comprehensive Review on the Sustainable Treatment of Textile Wastewater: Zero Liquid Discharge and Resource Recovery Perspectives

et al. 2022

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Clothing, one of the basic needs, demands the growth of textile industries worldwide, resulting in higher consumption and pollution of water. Consequently, it requires extensive treatment of textile effluent for environmental protection as well as reuse purposes. Primary treatment, secondary treatment, and tertiary treatment are the three major phases of textile wastewater treatment. Secondary treatment under aerobic and anaerobic circumstances is carried out to decrease BOD, COD, phenol, residual oil, and color, whereas primary treatment is utilized to remove suspended particles, oil, grease, and gritty materials. However, biological treatment is not fully capable of treating water according to discharge/reuse standards. Hence, tertiary treatment is used to remove final contaminants from the wastewater. Adsorption is regarded as one of the most feasible processes for dye and metal removal in consideration of cost and variation in the adsorbent. Though membrane filtration is an efficient process, the cost of operation limits its application. It’s unfortunate that there isn’t a universally applicable treatment solution for textile effluents. Therefore, the only flexible strategy is to combine several therapy modalities. Treatment of complicated, high-strength textile wastewater depending on pollutant load will be more successful if physical, chemical, and biological approaches are used in tandem. Enforcement of stringent environmental regulation policies, increasing costs and demand for freshwater, and the rising costs and difficulties associated with wastewater disposal are accelerating efforts toward achieving ZLD. Additionally, research into methods for extracting useful materials from wastewater has blossomed in recent years. As such, the purpose of this analysis is to give a holistic overview of textile wastewater treatment systems, with a focus on zero liquid discharge (ZLD) and efficient resource recovery, both of which may hasten the transition to more sustainable water management.

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Application of a fluidized bed bioreactor for cod reduction in textile industry effluents

Cited by 28 publications

References 14 publications

Gas–liquid mass transfer studies in inverse fluidized bed biofilm reactor for the biodegradation of industrial effluent rich in phenolic compounds

Gas–liquid mass transfer studies in inverse fluidized bed biofilm reactor for the biodegradation of industrial effluent rich in phenolic compounds

Biodegradation Kinetic Studies on Phenol in Internal Draft Tube (Inverse Fluidized Bed) Biofilm Reactor UsingPseudomonas fluorescens: Performance Evaluation of Biofilm and Biomass Characteristics

A Comprehensive Review on the Sustainable Treatment of Textile Wastewater: Zero Liquid Discharge and Resource Recovery Perspectives

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