Thermal oxidiser

Abstract

Thermal oxidiser ( 1 ) for the oxidation of a feed liquid (W) comprising an elongated retort ( 3 ) provided with a combustion gas input lance ( 5 ), a feed liquid input lance ( 7 ), one or more flow straighteners ( 11 ) and an exhaust gas outlet ( 13 ) wherein said retort ( 3 ) comprises an elongated wall ( 15 ) with a first end plate ( 17 ) fastened to a first end ( 19 ) thereof and a second end plate ( 21 ) fastened to the second, opposite end ( 23 ) thereof, combustion gas input lance ( 5 ) projects substantially horizontally through first end plate ( 17 ) into said retort ( 3 ) and feed liquid input lance ( 7 ) projects downwards though the retort wall into said retort ( 3 ).

1 . A thermal oxidiser ( 1 ) for the oxidation of a feed liquid (W) comprising:
 an elongated retort ( 3 ) provided with a combustion gas input lance ( 5 ), a feed liquid input lance ( 7 ), one or more flow straighteners ( 11 ) and an exhaust gas outlet ( 13 );   wherein said retort ( 3 ) includes an elongated wall ( 15 ) with a first end plate ( 17 ) fastened to a first end ( 19 ) thereof and a second end plate ( 21 ) fastened to the second, opposite end ( 23 ) thereof, the combustion gas input lance ( 5 ) projects substantially horizontally through first end plate ( 19 ) into said retort ( 3 ); and the feed liquid input lance ( 7 ) projects downwards through the retort wall ( 15 ) into said retort ( 3 ).   
   
   
       2 . The thermal oxidiser of  claim 1 , further comprising a salt tray ( 9 ) positioned below feed liquid input lance ( 7 ). 
   
   
       3 . The thermal oxidiser of  claim 1 , wherein said combustion gas input lance ( 5 ) is adapted to mix waste gas material with oxygen and nitrogen. 
   
   
       4 . A method for the oxidation of a feed liquid (W) comprising:
 feeding said feed liquid (W) into a thermal oxidiser ( 1 ) through a feed liquid input lance ( 7 );   providing through a combustion gas input lance ( 5 ) more than sufficient oxygen to oxidise said feed liquid (W);   combusting said feed liquid (W) at a destruction temperature sufficient to ensure oxidation of the feed liquid constituents to their most oxidised state;   maintaining the combustion products at said destruction temperature for at least 2 seconds; and   exhausting said combustion products from said thermal oxidiser ( 1 ).