Abstract: There are provided systems and processes that provide a robust ?-alumina supported catalyst for the wet air oxidation or hydrolysis treatment of wastewaters having a pH of 9 or greater.

Abstract: Systems for treating wastewater containing organic nitrogen compounds are disclosed. The systems include a wet air oxidation unit having an oxidation zone, a catalytic zone, and a metal-based catalyst. Methods of treating wastewater containing organic nitrogen compounds are also disclosed. The methods include contacting the wastewater with an oxidant to produce a mixed liquor, contacting the mixed liquor with a metal-based catalyst to catalyze ammonia and produce a gas containing nitrogen and a liquid effluent containing nitrogen. Methods of retrofitting a wet air oxidation unit including providing a metal-based catalyst are also disclosed. Methods of facilitating treatment of wastewater in a wet air oxidation unit including providing a metal-based catalyst are also disclosed.

Abstract: A method of destroying a fluorocarbon compound includes regenerating an adsorbent to remove the fluorocarbon compound and to produce a regeneration fluid having a concentration of the fluorocarbon compound and directing the regeneration fluid to an electro-oxidation system. The method also includes applying a current to the electro-oxidation system to oxidize the fluorocarbon compound within the regeneration fluid and measuring a quantity of fluorides in the regeneration fluid to determine the progress of the removal of the fluorocarbon compound from the regeneration fluid.

Abstract: There are provided systems and processes that provide a robust ?-alumina supported catalyst for the wet air oxidation or hydrolysis treatment of wastewaters having a pH of 9 or greater.

Abstract: There are provided systems (10) and processes for the selective removal of cyanide from a wastewater stream (12) comprising cyanide and an amount of organic compounds therein.

Abstract: Methods of treating a high suspended solids liquor having a waste stream and a suspended solids content including powdered activated carbon and biological material by contacting the high suspended solids liquor with a membrane unit are disclosed. Methods of treating a waste stream by combining the waste stream with powdered activated carbon and biological material to produce the high suspended solids liquor and contacting the high suspended solids liquor with a membrane unit are also disclosed. Treatment systems including a membrane unit fluidly connected to a source of a high suspended solids liquor are disclosed. Treatment systems including a bioreactor fluidly connected to a source of a waste stream and a membrane unit are also disclosed.

Abstract: The present invention enables a high suspended solids (SS) liquor (16) (at least about 10 g/L) comprising activated carbon (30) to be contacted with one or more membranes (14) of a membrane unit (12) to efficiently treat a waste stream (24) for contaminant removal.

Abstract: Systems and processes are provided herein for selectively removing zinc from a zinc fluid in order to substantially reduce an amount of zinc waste for disposal in particular settings, such as in an offshore drilling environment.