Microbial degradation of phenol and phenolic derivatives

Krastanov, Albert; Alexieva, Zlatka; Yemendzhiev, Husein

doi:10.1002/elsc.201100227

Cited by 192 publications

(93 citation statements)

References 120 publications

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“…As a rule, conversion of catechol does not follow the meta-cleavage pathway, and generally, the ortho-cleavage pathway is required for the complete degradation of many aromatic organics [39]. Discussion of biodegradation pathways and mechanisms can be found in [27,35,36,40].…”

Section: Mechanisms Of Biodegradationmentioning

confidence: 99%

Organic Contaminants in Refinery Wastewater: Characterization and Novel Approaches for Biotreatment

Al-Khalid¹,

El‐Naas²

2018

Recent Insights in Petroleum Science and Engineering

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Addressing major environmental issues, such as water pollution, is essential nowadays in realizing sustainable development. The ever-increasing world population and industrial development have led to the introduction of diferent types of chemicals to the environment, leading to considerable deterioration in environmental quality. A major class of these chemicals is phenolic compounds, which are hazardous pollutants and highly toxic even at low concentrations. In recent years, researchers have realized the importance of extracting new bacterial strains that are efective in treating diferent types of highly contaminated wastewaters at diferent severe conditions. They also focused considerable amount of research on developing new types of reactors that would provide eicient mixing and reduce mass transfer limitations. The aim is to develop and evaluate efective reactor systems and biocatalysts for the biodegradation of major contaminants in petroleum reinery wastewater. This chapter examines the diferent available options for the treatment of reinery wastewater with more focus on novel biotreatment options.

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Section: Mechanisms Of Biodegradationmentioning

confidence: 99%

Organic Contaminants in Refinery Wastewater: Characterization and Novel Approaches for Biotreatment

Al-Khalid¹,

El‐Naas²

2018

Recent Insights in Petroleum Science and Engineering

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“…Phenols can even inhibit the growth of microorganisms that are capable of utilising them. Hence, phenol is used as an antimicrobial agent (Krastanov et al, 2013).…”

Section: Author(s) Agree That This Article Remains Permanently Open Amentioning

confidence: 99%

Effect of physicochemical factors on the biodegradation of phenol by Pseudomonas putida ATCC 12842 and Pseudomonas fluorescens ATCC 948

Alshehrei¹

2017

Afr. J. Biotechnol.

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Phenol is a very toxic substance and it can cause a number of environmental problems when it enters a water system. Biological treatment is considered a cost-effective and safe technology and it plays an important role in the remediation of environmental pollutants. In this study, Pseudomonas fluorescens ATCC 948 and Pseudomonas putida ATCC 12842 were employed to biodegrade phenol, with different culture conditions such as, different incubation periods, initial phenol concentration, temperature, pH, carbon and nitrogen sources) used to examine their effect on phenol degradation. The results showed that phenol degraded completely after 122 h. Different initial concentrations of phenol were added to minimal salts medium and the percentage of phenol degradation decreased as the phenol concentration increased. The optimum temperature for both bacterial strains, P. fluorescens and P. putida, is 35°C, with the maximum percentage of degradation occuring at pH 7. Glucose is the best carbon source as it increased the rate of biodegradation up to 80%. Ammonium nitrate is the best nitrogen source for P. fluorescens to degrade phenol, while ammonium chloride is the best source of nitrogen for degradation of phenol by P. putida. The study's results suggest that P. fluorescens and P. putida are capable of phenol degradation, and thus can be used for bioremediation of synthetic waste water containing phenol.

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“…yang sedikit turun menjadi 834 mg/L. Kenaikan ini diduga karena sel-sel bakteri mengeluarkan senyawa metabolit untuk mendegradasi senyawa fenol atau sebagai respon dari kondisi toksik fenol (17) . Nilai COD kemudian menurun drastis pada hari ke-2 menjadi 170-440 mg/L.…”

Section: Percobaan Kultur Tunggalunclassified

Penghilangan Senyawa Fenol Oleh Bakteri Yang Diisolasi dari Area Pertambangan Minyak Bumi

Prayitno

2016

Jurtekling

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The aim of this research was to study the effectiveness of local bacterial strains from oil-contaminated soil to degrade phenol. The study consisted of two experiments, using six individual strains and using mix of strains. Bacterial strains used in the first experiment were 1.3, 3.3 dan 8.2.1 (Bacillus sp.) PENDAHULUANFenol ataupun senyawa yang mengandung fenol dikenal sebagai senyawa kimia yang banyak dipakai dalam proses industri. Fenol digunakan sebagai komponen pewarna, polimer, obat-obatan, pestisida, dan senyawa organik lainnya (1) . Salah satu jenis fenol, yaitu cresol, merupakan produk samping dari distilasi minyak mentah dan gasifikasi batubara. Senyawa fenol banyak ditemukan pada air limbah kilang minyak, industri pulp dan kertas, prosesing batubara dan industri kimia. Konsentrasi fenol di limbah cair berkisar antara 6 -500 mg/L di industri kilang minyak dan 3 -1220 mg/L di industri petrokimia (2) .Fenol memiliki efek negatif bagi lingkungan terutama ekosistem perairan, sumberdaya air dan kesehatan manusia (1,3) karena bersifat toksik dan karsinogen. Fenol juga diketahui mencemari sumber air tanah karena sifatnya mudah larut dalam air (4) . Karena itu, penghilangan fenol dari limbah cair dan sumber air tanah menjadi salah satu perhatian utama.Senyawa fenol dapat didegradasi menjadi senyawa tidak berbahaya oleh mikroorganisme dalam kondisi aerobik maupun anaerobik. Metode penghilangan senyawa fenol dengan cara biologis ini banyak digunakan terutama dalam lumpur aktif maupun dalam reaktor anaerobik (5) . Namun penghilangan fenol dengan metode biologis yang efektif masih mengalami hambatan. Senyawa fenol pada konsentrasi 0.05% sudah bersifat toksik sehingga dapat menghambat pertumbuhan mikroorganisme (6) . Karena itu fluktuasi dari beban pencemar sering menjadi penyebab penurunan efisiensi penghilangan senyawa fenol.

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Microbial degradation of phenol and phenolic derivatives

Cited by 192 publications

References 120 publications

Organic Contaminants in Refinery Wastewater: Characterization and Novel Approaches for Biotreatment

Organic Contaminants in Refinery Wastewater: Characterization and Novel Approaches for Biotreatment

Effect of physicochemical factors on the biodegradation of phenol by Pseudomonas putida ATCC 12842 and Pseudomonas fluorescens ATCC 948

Penghilangan Senyawa Fenol Oleh Bakteri Yang Diisolasi dari Area Pertambangan Minyak Bumi

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