Degradation of Phenol by Mixed Culture of Locally Isolated Pseudomonas Species

Jame, Sadia Afrin

doi:10.4172/2155-6199.1000102

Cited by 19 publications

(11 citation statements)

References 9 publications

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“…2a). Higher COD removal efficiency in MDC-2 was due to the mixture of pure culture of P. aeruginosa and anaerobic sludge used as inoculums, indicating synergistic interaction between these two inoculums [25]. The lowest COD removal efficiency was observed in MDC-3 with only anaerobic sludge used as inoculum.…”

Section: Cod Removalmentioning

confidence: 95%

“…The improved phenol degradation in MDC-2 indicates positive interaction between the P. aeruginosa and mixed anaerobic consortia compared to only mixed anaerobic consortia used as inoculum in MDC-3. Jame et al [25] reported that mixing of two different microorganisms with each other decreased the degradation time and increased the removal rate of phenol due to higher bacterial growth and possibly both the isolates contributed to degradation of phenol. Walton and Anderson [26] have also reported that individual microbial species are capable of metabolizing only a limited range of substrates; therefore, mixing different inoculums with pure culture of phenoldegrading bacteria have a greater potential toward complex phenolic compound degradation.…”

Section: Anaerobic Phenol Degradationmentioning

confidence: 98%

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Simultaneous Removal of Phenol and Dissolved Solids from Wastewater Using Multichambered Microbial Desalination Cell

Pradhan

Jain

Ghangrekar

2015

Appl Biochem Biotechnol

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Microbial desalination cell (MDC) has great potential toward direct electricity generation from wastewater and concurrent desalination through potential difference developed due to microbial activity. Degradation of phenol by isolate Pseudomonas aeruginosa in anodic chamber and simultaneous desalination of water in middle desalination chamber of multichamber MDC is demonstrated in this study. Performance of the MDCs with different anodic inoculum conditions, namely pure culture of P. aeruginosa (MDC-1), 50 % v/v mixture of P. aeruginosa and anaerobic mixed consortia (MDC-2) and anaerobic mixed consortia (MDC-3), was evaluated to compare the phenol degradation in anodic chamber, bioelectricity generation, and simultaneous total dissolved solids (TDS) removal from saline water in desalination chamber. Synergistic effect between P. aeruginosa and mixed anaerobic consortia as inoculum was evident in MDC-2 demonstrating phenol degradation of 90 %, TDS removal of 75 % in 72 h of reaction time along with higher power generation of 27.5 mW/m(2) as compared to MDC-1 (95 %, 64 %, 12.8 mW/m(2), respectively) and MDC-3 (58 %, 52 %, 4.8 mW/m(2), respectively). The results illustrate that the multichamber MDC-2 is effective for simultaneous removal of phenol and dissolved solids contained in industrial wastewaters.

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Section: Cod Removalmentioning

confidence: 95%

Section: Anaerobic Phenol Degradationmentioning

confidence: 98%

Simultaneous Removal of Phenol and Dissolved Solids from Wastewater Using Multichambered Microbial Desalination Cell

Pradhan

Jain

Ghangrekar

2015

Appl Biochem Biotechnol

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“…Phenol is one of the most prevalent chemical and pharmaceutical pollutants, due to its toxicity even at lower concentrations and formation of substituted compounds during oxidation and disinfection processes. Its direct effect on the environment include depletion of ozone layer, the earth's heat balance, reduced visibility, and addition of acidic air pollutants to the atmosphere [7]. Phenol removal from the industrial wastewater is utmost necessary, as phenol concentration in wastewater inhibits or eliminates micro-organisms, thus strongly reducing the biodegradation of other components.…”

Section: Introductionmentioning

confidence: 99%

Optimization of process parameters during photocatalytic degradation of phenol in UV annular reactor

Bhattacharjee¹,

Chakraborty

Mandol³

et al. 2015

Desalination and Water Treatment

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A B S T R A C TIn this work, photocatalytic oxidation of aqueous phenol solution was carried out in a novel UV-irradiated annular reactor in the presence of TiO 2 catalyst. The photocatalytic experiments were conducted by varying the flow rates (5, 7.5, and 10 LPH), substrate-to-catalyst ratios (0.083, 0.5415, and 1), and solution pH (3, 6, and 9). In each case, the demineralization of phenol in aqueous was investigated after an operating time of 3 h. The influence of each parameter on phenol degradation was thoroughly investigated and reported. The strategy consisted of several steps, such as selection of the variables and their experimental domain, use of a screening design to detect significant variables and interactions into the experimental region, study of the main effect of variables and interactions, and finally application of a Draper-Lin small composite design (orthogonal) to obtain the optimum values of the significant variables leading to high conversion of phenol. Efficiency of phenol degradation was found to decrease with increase in substrate to TiO 2 ratio. The flow rate and solution pH were found to affect the degradation appreciably. Kinetic study of the photocatalytic reaction revealed that phenol degradation could be well explained using Langmuir-Hinshelwood model. In dilute solution, the degradation was found to follow a pseudo-first-order model. The apparent rate constant was determined and reported.

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“…This is proved by using Pseudomonas putida CA-3 strain against toxic pollutant like styrene, naphthalene used as the sole source of carbon and energy for accumulating medium-chain-length polyhydroxyalkanoates (MCL-PHAs) [56][57][58]. In few cases, mixed cultures (miniature of complex microorganisms) are required for complete polymerization process since the carbon source provided may be in complex form and cannot be degraded so easily [59][60][61]. To overcome this cost ineffective process, several studies have been made to isolate such microbes which utilize these complex compounds and degrade them giving bioplastics at last.…”

Section: Pha Productionmentioning

confidence: 99%

Overview on Polyhydroxyalkanoates: A Promising Biopol

R¹

2011

J Microbial Biochem Technol

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Plastic pollution is creating the significant environmental and economic burdens since they consume the natural fuels (energy) and other natural resources. Beside this, they have long shelf time, debasing the environment in the numerous ways. The only way to trim down the hazards of plastic pollution is to decrease the use of plastic and thereby reducing its production. Degradations and recycling steps followed to diminish these plastic was of no use since it takes abundant stress (mechanical and chemical) to do so and also considered being costly. Biodegradable plastics became major approach to solve this issue and also became eminent since 1970s. From the inventory of biopolymers acting as bioplastics, PHA has gained major importance because of its analogous behavior to that of petro based plastics. PHAs are the linear polymers produced by the microbes to store energy and carbon. Present review discusses about the PHA production method, recent advances in producing, its degradation and applications of PHA which elucidates the gaining importance in today's industrial world.

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Degradation of Phenol by Mixed Culture of Locally Isolated Pseudomonas Species

Cited by 19 publications

References 9 publications

Simultaneous Removal of Phenol and Dissolved Solids from Wastewater Using Multichambered Microbial Desalination Cell

Simultaneous Removal of Phenol and Dissolved Solids from Wastewater Using Multichambered Microbial Desalination Cell

Optimization of process parameters during photocatalytic degradation of phenol in UV annular reactor

Overview on Polyhydroxyalkanoates: A Promising Biopol

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