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  • TITLE
  • DEDICATION
  • CERTIFICATE
  • DECLARATION
  • ACKNOWLEDGEMENT
  • CONTENTS
  • ABBREVIATIONS
  • LIST OF FIGURES
  • LIST OF PLATES
  • LIST OF TABLES
  • 1. INTRODUCTION
  • 1. INTRODUCTION
  • 1.1 Biodegradation
  • 1 Ortho and Meta Pathway for the degradation of aromatic compounds
  • 1.2 Review of literature
  • 1 Microorganisms in the biodegradation of organic compounds
  • 2 Microorganisms in the Biodegradation of phenolic compounds
  • 3 Enzymes in the biodegradation of phenolic compounds
  • 4 Biological treatment of phenolic wastewater
  • 2. MATERIALS AND METHODS
  • 2.1. Isolation and selection of a phenol degrading strain by enrichment culture
  • 2.2. Identification of the selected bacterial strains
  • 2.3. Optimization of the conditions of phenol degradation
  • 2.4. Analysis of the products of phenol degradation
  • 2.5. Isolation and purification of polyphenol oxidase from Alcaligenes sp d2
  • 2.6. Treatment of the phenolic paper factory effluent
  • Plate 1 First Reactor
  • Plate 2 Second Reactor
  • Plate 3 Third Reactor
  • Plate 4 The Bottom Space for FAC Packing in the Reactor
  • Plate 5 The filter Bed of the Reactor for Packing Immobilized Cells.
  • Plate 6 The Space for Coating Chitosan in the Reactor
  • Plate 7 Chitosan Coating in the Reactor
  • Plate 8 Treatment of the Effluent with PAC Packed in the Reactor.
  • Plate 9 Treatment of the Effluent with Immobilized Cells
  • Plate 10 Treatment of the Effluent with Chitosan Coating
  • Plate 11 Treatment of the Effluent with the Three Stage Reactor.
  • 3. RESULTS
  • 3.1 Isolation, identification and selection of an efficient phenol degrading bacteria
  • 5 Isolation of phenol tolerating strains by soil enrichment technique
  • 6 Isolation of phenol degrading strains by enrichment technique using mineral salt phenol medium
  • 3.2 Optimization of the conditions of biodegradation of phenol
  • 7 Identification and selection of potential strain for the biodegradation of phenol
  • 2 Effect of phenol concentration or. specific growth rate of Alcaligenes sp d2
  • 3 Effect of substrate concentration on phenol degradation by Alcaligenes sp d2
  • 4 Optimization of the incubation period for the biodegradation of phenol by Alcaligenes sp d2
  • 5 Optimization of pH for the biodegradation of phenol by Alcaligenes sp d2
  • 6 Growth curve of free cells of Alcaligenes sp d2 in mineral salt phenol medium (MSPM)
  • 7 Growth curve of immobilized Alcaligenes sp d2 in mineral salt phenol medium (MSPM)
  • 3.3 Analysis of the products of phenol biodegradation
  • 8 Phenol degradation in mineral salt phenol medium (MSPM) by immobilized cells of Alcaligenes sp d2 in batch process
  • 9 Gas chromatogram of the extract of uninoculated MSPM (control)
  • 10 Mass spectroscopic analysis of the peak at 14.997 min in the gas chromatogram of the extract of uninoculated MSPM
  • 11 Analysis of the extract of biodegraded phenol MSPM by Gas chromatography
  • 12 Mass spectroscopic analysis of the additional peak at 23.394 min in the gas chromatogram of the extract of biodegraded MSPM
  • 13 Mass spectroscopic analysis of the additional peak at 26.567 min in the gas chromatogram of the extract of biodegraded MSPM
  • 14 Mass spectroscopic analysis of the additional peak at 36.204 min in the gas chromatogram of the extract of biodegraded MSPM
  • 15 Mass spectroscopic analysis of the additional peak at 36.783m in. in the gas chromatogram of the extract of biodegraded MSPM
  • 16 Mass spectroscopic analysis of the additional peak at 37.922 min in the gas chromatogram of the extract of biodegraded MSPM
  • 17 Mass spectroscopic analysis of the additional peak at 38.988 min in the gas chromatogram of the extract of biodegraded MSPM
  • 18 Mass spectroscopic analysis of the additional peak at 39.084 min in the gas chromatogram of the extract of biodegraded MSPM
  • 19 Analysis of the extract of uninoculated MSPM by FT-IR
  • 20 Library search report of the FT-IR analysis of the extract of uninoculated MSPM
  • 21 FT- IR analysis of the extract of biodegraded MSPM
  • 3.4 Polyphenol oxidase from Alcaligenes sp d2
  • 22 Library search report of the FT-IR analysis of the extract of biodegraded MSPM
  • Plate 12 Native Page of the partially Purified Enzyme
  • 8 Purification profile of polyphenol oxidase isolated from phenol degrading Alcaligenes sp d2
  • 23 Effect of substrate (ARTS) on the activity of polyphenol oxidase from Alcaligenes sp d2
  • 24 Line Weaver Burk Plot of Polyphenol oxidase from Alcaligenes sp d2 with ABTS as the substrate
  • 25 Effect of pH on the activity of polyphenol oxidase from the Alcaligenes sp.d2
  • 3.5 Application of the selected phenol degrading organism Alcaligenes sp d2 in waste water treatment
  • 26 Biodegradation of phenol with partially purified polyphenol oxidase from Alcaligenes sp d2
  • 9 Characteristics of the phenolic paper factory wastewater
  • 27 Growth curve of free cells of Alcaligenes sp d2 in phenolic effluent
  • 28 Treatment of phenolic effluent with free cells of Alcaligenes sp d2 in batch process
  • 29 Growth curve of immobilized Alcaligenes sp d2 in phenolic effluent
  • 30 Treatment of phenolic effluent with immobilized cells of Alcaligenes sp d2 in batch process
  • 31 Phenol degradation and COD reduction in effluent by immobilized cells of Alcaligenes sp d2 by continuous treatment in a packed bed reactor
  • 32 Performance of the packed bed reactor with immobilized cells of Aicakgenes sp d2 in the treatment of phenolic effluent by continuous process
  • 33 Scanning of the coloured paper factory effluent for the absorption maxima by spectrophotometric analysis
  • 34 Continuous treatment of the phenol paper factory effluent with powdered activated charcoal (PAC) packed in the reactor
  • 35 Continuous treatment of phenolic paper factory effluent using immobilized cells of AIcaligenes sp d2 packed in the reactor
  • 36 Continuous treatment of the phenol paper factory effluent using chitosan coated reactor
  • 37 Continuous treatment of the phonolic paper factory effluent using the three stage activated charcoal; immobilized cell and chitosan packed reactors in series
  • 4. DISCUSSION
  • 4.1 Isolation identification and selection of an efficient phenol degrading bacteria
  • 4.2 Optimization of the conditions of biodegradation
  • 4.3 Analysis of the products of phenol biodegradation
  • 4.4 Polyphenol oxidase from Alcaligenes sp d2
  • 4.5 Application of the selected phenol degrading organism in waste water treatment
  • 5. SUMMARY
  • 6. CONCLUSION
  • REFERENCES
  • APPENDICES
  • APPENDIX I. Carbohydrate Sugar Fermentation Medium
  • APPENDIX II. Hugh-Liefson Agar Medium (O.F. Medium)
  • APPENDIX Ill. Methyl redNoges-Proskeaur Medium (MR-VP Medium)
  • APPENDIX IV. Methyl Red Solution
  • APPENDIX V. Nutrient agar Medium
  • APPENDIX VI. Nutrient Broth
  • APPENDIX VII. Oxidase Reagent
  • APPENDIX VIII. Phenol Red Dextrose Both
  • APPENDIX IX. Sulphide lndole Motility (SIM) Agar Medium
  • APPENDIX X. Simmons Citrate Agar Medium
  • APPENDIX XI. Starch agar medium
  • APPENDIX XII. Triple Sugar Iron Agar Medium
  • APPENDIX xIII. Tryptone Broth Medium
  • APPENDIX XIV. Gelatin Agar Medium
  • APPENDIX XV. Test solution for gelatin hydrolysis
  • APPENDIX XVI ANALYSIS REPORT
  • APPENDIX XVll ANALYSIS REPORT