Incineration process

A process for coincinerating semi-solid waste sludge, and a supplemental fuel for detoxicating toxicity in said sludge and evaporating water in said sludge comprising the steps of:

• spraying said semi-solid waste sludge in combination with said supplemental fuel in droplets into an upper end of an incineration zone having an upper end and a lower end;
• incinerating said sprayed combination in said incineration zone to produce a flame front intermediate the vertical length of said incinerator zone in a temperature range of between approximately 1800.degree. F. and 2300.degree. F. for destroying toxicity in said semi-solid waste sludge and for evaporating water content of said droplets;
• and
• recovering hot incineration off gases from said incineration zone.

A coincineration process for incinerating sewage sludge or toxic liquid chemical waste in combination with a supplemental fuel while minimizing dioxin content of incineration off gases comprising:

• introducing a combustible fuel into an incineration zone, said combustible fuel comprising at least 15% tire chips by weight;
• incinerating said introduced combustible fuel in said incineration zone to achieve a combustion temperature range of between approximately 1800.degree. F. and 2300.degree. F.;
• coincinerating said sewage sludge or toxic liquid chemical waste in said combustion zone along with said combustible fuel, in combustion temperature of between approximately 1800.degree. F. and 2300.degree. F. to destroy toxicity in toxic waste and to evaporate water content of sludge;
• whereby dioxin content of incineration off gas is effectively reduced in said combustion zone;
• and
• recovering said incineration off gases having said reduced dioxin content from said incineration zone.

A coincineration process for incinerating sewage sludge or toxic liquid chemical waste in combination with a supplemental fuel while minimizing dioxin content of incineration off gases comprising:

• introducing a fraction of solid combustible fuel including tire chips at least l5% by weight of said combustible fuel into an incineration zone having an upper section and a lower section;
• incinerating said introduced fuel to produce a flame front intermediate vertical length of said incineration zone, said flame having a temperature at least in a range of between approximately 1800.degree. F. and 2300.degree. F.;
• dispersing sewage sludge or toxic liquid chemical waste in relatively small droplets over the flame front in said incinerating zone to coincinerate said combustible material in said droplets for evaporating water content and destroying toxicity in said droplets,
• whereby dioxin content of incineration off gases is effectively reduced;
• and
• recovering said incineration off gases having said reduced dioxin content from said incineration zone.

A process for coincinerating semi-solid sludge waste or toxic liquid chemical waste, and a supplemental fuel for detoxicating said liquid waste and evaporating water in said sludge comprising the steps of:

• spraying said sludge or toxic liquid chemical waste in combination with said supplemental fuel in droplets into an upper end of an incineration zone having an upper end and a lower end, whereby toxic liquid chemical waste is coincinerated with said supplemental fuel;
• incinerating said sprayed combination in said incineration zone to produce a flame front intermediate the vertical length of said incinerator zone in a temperature range of between approximately 1800.degree. F. and 2300.degree. F. for destroying any toxicity of said liquid waste and for evaporating water content of said droplets;
• and
• recovering hot incineration gases from said incineration zone.

A process for coincinerating sewage sludge or toxic liquid chemical waste, and a supplemental fuel for detoxicating said liquid waste and evaporating water in said sludge comprising the steps of:

• spraying said sewage sludge or toxic liquid chemical waste in combination with said supplemental fuel in droplets into an upper end of an incineration zone having an upper end and a lower end;
• incinerating said sprayed combination in said incineration zone to produce a flame front intermediate the vertical length of said incinerator zone and having a temperature range of between approximately 1800.degree. F. and 2300.degree. F. for destroying toxicity of said liquid waste and for evaporating water content of said droplets;
• and
• recovering hot incineration gases from said incineration zone, wherein a fraction of said sewage sludge or toxic liquid chemical waste is admixed with said supplemental fuel prior to spraying into said incinerator.

A process for coincinerating sewage sludge or toxic liquid chemical waste and a supplemental fuel comprising tire chips in an amount of at least 15% by weight having the steps of:

• introducing non-gaseous supplemental fuel into an incineration zone at a point intermediate a vertical length of said incineration zone to produce a frame front intermediate the verticle length of said incineration zone;
• incinerating said introduced non-gaseous supplemental fuel to achieve a combustion temperature of at least approximately 2,000 degrees Fahrenheit;
• dispersing said sewage sludge or toxic liquid chemical waste in relatively small droplets downwardly over said flame front in said incineration zone by means of a pressure atomizing nozzle to evaporate water in said droplets and to destroy toxicity of toxic waste by combustion in said incineration zone;
• recovering hot incineration off-gases from said incineration zone;
• and
• passing said off gases to an alkaline contact zone to neutralize acidic components in said gases.

A process for coincinerating sewage sludge or toxic liquid chemical waste and a supplemental fuel comprising tire chips in an amount of at least 15% by weight having the steps of:

• introducing non-gaseous supplemental fuel into a single incineration zone at a point intermediate a vertical length of said incineration zone to produce a frame front intermediate the verticle length of said incineration zone;
• incinerating said introduced non-gaseous supplemental fuel to achieve a combustion temperature of at least approximately 2,000 degrees Fahrenheit;
• dispersing said sewage sludge or toxic liquid chemical waste in relatively small droplets downwardly over said flame front in said incineration zone by means of a spinning cone or disk atomizing to evaporate water in said droplets and to destroy toxicity of toxic waste by combustion in said incineration zone;
• recovering hot incineration off-gases from said incineration zone;
• and
• passing said off gases to an alkaline contact zone to neutralize acidic components in said gases.