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Removal of nitrogen containing hydrocarbons from wastewater by catalytic and non-catalytic hydrothermal oxidation, in sub- and supercritical conditions

By Oluwaponmile Olumayowa Osibo

Abstract

The results of the hydrothermal oxidation of 1,8 diazabicyclo[5.4.0]undec-7-ene (DBU), a toxic nitrogen-containing organic compound by different processes is presented here. Subcritical experiments (wet air oxidation (WAO) and catalytic wet air oxidation(CWAO)), were conducted in a batch reactor and supercritical water oxidation (SCWO) experiments were conducted in a tubular reactor. The key operating parameters investigated were temperature, pressure, initial organic concentration; for catalytic experiments, the effect of catalyst metal loading and weight were also investigated. Commercially available Ru/Al\(_2\)O\(_3\) pellets were selected for catalytic study after various catalysts were screened. Results indicated that temperature was the key operating parameter in all 3 processes that affected DBU removal, TOC removal and ammonia yield. Ru/Al\(_2\)O\(_3\) pellets enhanced the DBU removal, TOC removal and decreased ammonia yield compared to WAO. Complete DBU removal was achieved by catalytic wet air oxidation and supercritical water oxidation. Kinetic data was acquired and a pseudo first order kinetic model was used to quantify the oxidation rate. WAO and CWAO were investigated for the treatment of hazardous industrial effluent with a high initial ammonia concentration and complete ammonia removal was achieved using Ru/Al\(_2\)O\(_3\) pellets. A novel ruthenium coated reticulated foam monolith was investigated as an alternative for heterogeneous catalyst instead of Ru/Al\(_2\)O\(_3\) pellets, the results show that it improved catalyst stability and could be an alternative to pellets for wastewater treatment

Topics: TP Chemical technology
Year: 2011
OAI identifier: oai:etheses.bham.ac.uk:1501

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Citations

  1. (2004). A process for generating power from the oxidation of coal in supercritical water.
  2. (2003). A review of imperative technologies for wastewater treatment II: hybrid methods.
  3. (1996). A review of industrial catalytic wet air oxidation processes.
  4. (1995). Acetic acid oxidation and hydrolysis in supercritical water.
  5. (2000). Advanced oxidation of textile wastewaters.
  6. (2005). Ammonia removal from effluent streams of wet oxidation under high pressure. Topics in Catalysis,
  7. (2001). An assessment of supercritical water oxidation (SCWO) -Existing problems, possible solutions and new reactor concepts.
  8. (1998). An economic evaluation of catalytic supercritical water oxidation: Comparison with alternative waste treatment technologies. doi
  9. (2010). An insight into Ru/TiO2 catalyzed wet air oxidation of N-ethylethanolamine in an aqueous solution. doi
  10. (1997). Are there hydrogen bonds in supercritical water?
  11. (2005). Carbon supported platinum catalysts for catalytic wet air oxidation of refractory carboxylic acids. Topics in Catalysis,
  12. (1998). Catalytic abatement of water pollutants.
  13. (1999). Catalytic and non catalytic wet oxidation.
  14. (1996). Catalytic oxidation in supercritical water.
  15. (2001). Catalytic oxidation of 4-chloroguaiacol reaction kinetics and catalytic studies. doi
  16. (1974). Catalytic oxidation of formic-acid in water - intraparticle diffusion in liquid-filled pores. doi
  17. (2002). Catalytic wet air oxidation of ammonia over M/CeO2 catalysts in the treatment of nitrogen-containing pollutants.
  18. (2010). Catalytic wet air oxidation of N,Ndimethylformamide aqueous solutions: Deactivation of TiO2 and ZrO2-supported noble metal catalysts. doi
  19. (2000). Catalytic wet air oxidation of phenol and acrylic acid over Ru/C and Ru-CeO2/C catalysts.
  20. (2006). Catalytic wet air oxidation of phenol over active carbon catalyst - Global kinetic modelling using simulated annealing.
  21. (2003). Catalytic wet air oxidation of wastewater containing ammonia and phenol over activated carbon supported Pt catalysts.
  22. (2007). Catalytic Wet Air Oxidation: Are Monolithic Catalysts and Reactors Feasible?
  23. (1998). Catalytic wet oxidation of acetic acid using platinum on alumina monolith catalyst. Annual Meeting of the AmericanInstitute-of-Chemical-Engineers.
  24. (2005). Catalytic wet oxidation of ammonia: Why is N formed preferentially against NO ?
  25. (2000). Catalytic wet oxidation of phenol over PtxAg1-xMnO2/CeO2 catalysts. doi
  26. (2005). Catalytic wet oxidation: micro-meso-macro methodology from catalyst synthesis to reactor design.
  27. (1995). Catalytic Wet Oxidations of phenol contaminated and p-chlorophenol contaminated waters.
  28. (1996). Catalytic wet-air oxidation of carboxylic acids on carbon-supported platinum catalysts.
  29. (2009). Charting Our Water Future: Economic frameworks to inform decision-making.
  30. (1972). Chemical Reaction Engineering - Second Edition,
  31. (2001). COD removal efficiencies of some aromatic compounds in supercritical water oxidation.
  32. (1997). Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"),
  33. (1995). Corrosion and chemical agent destruction - Research on supercritical water oxidation of hazardous military wastes.
  34. (2004). Corrosion in high-temperature and supercritical water and aqueous solutions: a review.
  35. (2005). Decomposition and oxidation reactions of aliphatic nitro compounds in supercritical water. doi
  36. (2000). Decomposition of isoquinoline and quinoline by supercritical water.
  37. (1996). Decomposition of nitrobenzene in supercritical water.
  38. (2007). Degradation of olive oil mill effluents by catalytic wet air oxidation: 2-Oxidation of p-hydroxyphenylacetic and phydroxybenzoic acids over Pt and Ru supported catalysts.
  39. (1997). Degradation of organochloride compounds by O-3 and O-3/H2O2.
  40. (2001). Degradation of phenolic waste waters over Nioxide.
  41. (2001). Degradation of Remazol Black B dye and its simulated dye bath wastewater by advanced oxidation processes in heterogeneous and homogeneous media. doi
  42. (1998). Does the catalytic wet oxidation yield products more amenable to biodegradation.
  43. (1994). Effect of fenton and photo-fenton reactions of the degradation and biodegradability of 2-nitrophenols and 4-nitrophenols in water treatment.
  44. (2002). Effects of Ce addition and Pt precursor on the activity of Pt/ Al2O3 catalysts for wet oxidation of phenol.
  45. (1989). Efficient Elimination of Organic Liquid Wastes: Wet Air Oxidation.
  46. (2005). Elementary Reaction Mechanism of Methylamine Oxidation in Supercritical Water.
  47. (2001). Enhancing the stability of Mn-Ce-OWETOX catalysts using potassium.
  48. (1991). Generalised kinetic model for Wet oxidation of organic compounds.
  49. (1995). Glucose hydrolysis and oxidation in Supercritical water.
  50. (1987). Heterogeneous Catalysis: Principles and Applications,
  51. (1987). Heterolysis and homolysis doi
  52. (1993). Hydrolysis and oxidation in Supercritical water.
  53. (1992). Hydrolysis and oxidation of acetamide
  54. (1999). Hydrolysis of nitriles in supercritical water.
  55. (1997). Hydrothermal decomposition and oxidation of p-nitroaniline in supercritical water.
  56. (2000). Hydrothermal oxidation of a nitrogen-containing compound: the fenuron. doi
  57. (1998). Hydrothermal Oxidation of Model Molecules and Industrial Wastes.
  58. (2004). Hydrothermal reactions of methylamine.
  59. (1981). Ion product of water substance 0 ºC - 1000 ºC, 1 -10,000 bars - New international formulation and its background.
  60. (1991). Kinetic model for wet air oxidation of organic compounds in subcritical and supercritical water.
  61. (2001). Kinetic modelling of catalytic wet air oxidation of phenol by simulated annealing.
  62. (2003). Kinetic study into the wet air oxidation of printing and dyeing wastewater.
  63. (1993). Kinetics and Reaction Pathways of Pyridine Oxidation in Supercritical Water.
  64. (1997). Kinetics of oxidation of ammonia in solutions containing ozone with or without hydrogen peroxide.
  65. (1991). Kinetics of Wet Air Oxidation of Phenol and Substituted Phenols.
  66. (1980). Liquid phase oxidation of phenol in a rotating catlaytic basket reactor.
  67. (2003). Mechanism and kinetics of the catalytic oxidation of aqueous ammonia to molecular nitrogen.
  68. (1982). Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution.
  69. (1984). Mechanism of the oxidation of aqueous phenol with dissolved oxygen.
  70. (2005). Modeling of a transpiring wall reactor for the supercritical water oxidation using simple flow patterns: Comparison to experimental results.
  71. (1997). New reactor system for supercritical water oxidation and its application on phenol destruction.
  72. (1993). Nitrification of ammonia nitrogen in refinery wastewater.
  73. (2001). Novel K-doped Mn-Ce-O wet oxidation catalysts with enhanced stability.
  74. (1988). Optimal conditions for applying an ozonehydrogen peroxide oxidising system..
  75. (2000). Optimisation of the operation variables of a supercritical water oxidation process.
  76. (1993). Oxidation chemistry of energetic materials in Supercritical water. Hazardous Waste and Hazardous Materials,
  77. (1990). Oxidation of coals in Liquid phases X. Mechanism of the cleavage of Benxenecarboxylic acids to Oxalic acid and carbon dioxide by the base catlaysed oxygen oxidation.
  78. (1988). Oxidation of simple compounds and mixtures in Supercritical water - Carbon monoxide, ammonia and ethanol.
  79. (1991). Ozonation of pyridine in aqueous-solution - Mechanistic and kinetic aspects. doi
  80. (1995). Phenol oxidation in supercritical water - From global kinetics and product identities to an elementary reaction model in doi
  81. (1994). Reaction mechanism for phenol oxidation in supercritical water.
  82. (2007). Reaction mechanisms for the decomposition of phenanthrene and naphthalene under hydrothermal conditions.
  83. (2007). Reaction mechanisms for the hydrothermal oxidation of petroleum derived aromatic and aliphatic hydrocarbons.
  84. (2008). Regulation (EC)
  85. (2002). Roles of water for chemical reactions in high-temperature water. doi
  86. (2007). Screening of catalysts and effect of temperature for kinetic degradation studies of aromatic compounds during wet oxidation.
  87. (1997). Solubility parameter revisited: an equation-of-state approach for its estimation.
  88. (2005). Statistical Models: Theory and Practice.
  89. (2008). Studies in wet air oxidation of aqueous morpholine over Ru/TiO2 catalyst: an insight into the fate of the 'N' atom. doi
  90. (2008). Studies in wet air oxidation of aqueous morpholine over Ru/TiOcatalyst: an insight into the fate of the N atom. doi
  91. (2000). Supercritical water oxidation in a pilot plant of nitrogenous compounds: 2-propanol mixtures in the temperature range 500-750 degrees C.
  92. (1997). Supercritical water oxidation kinetics, products, and pathways for CH3- and CHO-substituted phenols.
  93. (2008). Supercritical water oxidation of feeds with high ammonia concentrations Pilot plant experimental results and modeling.
  94. (1992). Supercritical water oxidation of pulp mill sludges.
  95. (2006). Supercritical water oxidation: A technical review.
  96. (1994). The coordination chemistry of the amidine ligand.
  97. (1992). The fate of nitrogen in Supercritical water oxidation.
  98. (2002). The first commercial supercritical water oxidation sludge processing plant. doi
  99. (2001). The modeling of a fountain photocatalytic reactor with a parabolic profile.
  100. (1980). The Solubility of Oxygen
  101. (1980). The static dielectric constant of water at high pressures and temperatures to 500 MPa and 550 ºC.
  102. (2005). The Treatment of a Toxic Nitrogenous containing Organic compound by Supercritical Water Oxidation and Wet Air Oxidation Processes: Operating Conditions and Reaction Kinetics. School of Chemical Engineering.
  103. (1982). The Wet oxidation of organic compounds catalysed by CO-BI complex oxide.
  104. (1992). Thermal decomposition of dilute aqueous formic-acid solutions.
  105. (1998). Total oxidation of acetic acid in aqueous solutions over noble metal catalysts. doi
  106. (1995). Treatment of Acrylonitrile plant wastewater.
  107. (1995). Treatment of industrial wastewaters with ozone hydrogen peroxide. doi
  108. (1996). Treatment of organic aqueous wastes: Wet air oxidation and wet peroxide oxidation.
  109. (1994). Treatment of wastewater and sludge by a catalytic wet oxidation process.
  110. (1994). Use of static mixer for oxidation and disinfection by ozone.
  111. (1996). Waste treatment of an aqueous waste stream from a cyclohexane oxidation unit: a case study.
  112. (1999). Water pollution abatement by catalytic wet air oxidation in a trickle bed reactor.
  113. (1994). Wet Air Oxidation and activated sludge treatment of phenolic wastewater.
  114. (1985). Wet Air Oxidation of Hazardous Organics in Wastewater. Environmental Progress,
  115. (2003). Wet Air Oxidation of nitrogen-containing organic compounds and ammonia in aqueous media.
  116. (1999). Wet air oxidation of oily wastes generated aboard ships: kinetic modeling. Hazardous Materials,
  117. (1997). Wet Air Oxidation of Phenol: Factors that May Influence Global Kinetics. Process Safety and Environmental Protection,
  118. (1993). Wet Air Oxidation of Trinitrotoluene manufacturing red water.
  119. (1999). Wet air oxidation: a review of process technologies and aspects in reactor design.
  120. (1999). Wet air oxidation: past, present and future.
  121. (2006). Wet oxidation and catalytic wet oxidation.
  122. (1993). Wet oxidation of nitrotoluenesulfonic acid - some intermeadiates, reaction pathways, and byproduct toxicity.
  123. (1998). Wet oxidation of phenolic solutions over heterogeneous catalysts: Degradation profile and catalyst behavior. doi
  124. (2005). Wet-air oxidation of p-nitrophenol.

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