(JP10128288-A)      Method for treating wastes by gasification involves: (a) gasifying wastes in a fluidised bed reactor at relatively low temperature, (b) introducing gaseous material and char produced in the reactor into a high-temperature combustor and (c) producing low calorific gas or medium calorific gas in the combustor at relatively high temperature.    Also claimed is an apparatus for the gasification of wastes comprises a fluidised bed reactor and a high-temperature combustor.    USE -   For treating wastes e.g. sewage sludge, municipal waste and industrial waste by gasification, for use in power generation and in production of fuel gases.    ADVANTAGE -   Process and apparatus can be operated easily and simply, has high thermal efficiency and can produce low- or medium calorific gas which can be used in the generation of electric power and industrial fuel gases.    (US5922090-A)      Method for treating wastes by gasification involves: (a) gasifying wastes in a fluidised bed reactor at relatively low temperature, (b) introducing gaseous material and char produced in the reactor into a high-temperature combustor and (c) producing low calorific gas or medium calorific gas in the combustor at relatively high temperature.    Also claimed is an apparatus for the gasification of wastes comprises a fluidised bed reactor and a high-temperature combustor.    USE -   For treating wastes e.g. sewage sludge, municipal waste and industrial waste by gasification, for use in power generation and in production of fuel gases.    ADVANTAGE -   Process and apparatus can be operated easily and simply, has high thermal efficiency and can produce low- or medium calorific gas which can be used in the generation of electric power and industrial fuel gases.    (JP2000140800-A)      Method for treating wastes by gasification involves: (a) gasifying wastes in a fluidised bed reactor at relatively low temperature, (b) introducing gaseous material and char produced in the reactor into a high-temperature combustor and (c) producing low calorific gas or medium calorific gas in the combustor at relatively high temperature.    Also claimed is an apparatus for the gasification of wastes comprises a fluidised bed reactor and a high-temperature combustor.    USE -   For treating wastes e.g. sewage sludge, municipal waste and industrial waste by gasification, for use in power generation and in production of fuel gases.    ADVANTAGE -   Process and apparatus can be operated easily and simply, has high thermal efficiency and can produce low- or medium calorific gas which can be used in the generation of electric power and industrial fuel gases.    (JP3079051-B2)      Method for treating wastes by gasification involves: (a) gasifying wastes in a fluidised bed reactor at relatively low temperature, (b) introducing gaseous material and char produced in the reactor into a high-temperature combustor and (c) producing low calorific gas or medium calorific gas in the combustor at relatively high temperature.    Also claimed is an apparatus for the gasification of wastes comprises a fluidised bed reactor and a high-temperature combustor.    USE -   For treating wastes e.g. sewage sludge, municipal waste and industrial waste by gasification, for use in power generation and in production of fuel gases.    ADVANTAGE -   Process and apparatus can be operated easily and simply, has high thermal efficiency and can produce low- or medium calorific gas which can be used in the generation of electric power and industrial fuel gases.    (JP2000351979-A)      Method for treating wastes by gasification involves: (a) gasifying wastes in a fluidised bed reactor at relatively low temperature, (b) introducing gaseous material and char produced in the reactor into a high-temperature combustor and (c) producing low calorific gas or medium calorific gas in the combustor at relatively high temperature.    Also claimed is an apparatus for the gasification of wastes comprises a fluidised bed reactor and a high-temperature combustor.    USE -   For treating wastes e.g. sewage sludge, municipal waste and industrial waste by gasification, for use in power generation and in production of fuel gases.    ADVANTAGE -   Process and apparatus can be operated easily and simply, has high thermal efficiency and can produce low- or medium calorific gas which can be used in the generation of electric power and industrial fuel gases.    (US6190429-B1)      Method for treating wastes by gasification involves: (a) gasifying wastes in a fluidised bed reactor at relatively low temperature, (b) introducing gaseous material and char produced in the reactor into a high-temperature combustor and (c) producing low calorific gas or medium calorific gas in the combustor at relatively high temperature.    Also claimed is an apparatus for the gasification of wastes comprises a fluidised bed reactor and a high-temperature combustor.    USE -   For treating wastes e.g. sewage sludge, municipal waste and industrial waste by gasification, for use in power generation and in production of fuel gases.    ADVANTAGE -   Process and apparatus can be operated easily and simply, has high thermal efficiency and can produce low- or medium calorific gas which can be used in the generation of electric power and industrial fuel gases.    (US2001011438-A1)      Method for treating wastes by gasification involves: (a) gasifying wastes in a fluidised bed reactor at relatively low temperature, (b) introducing gaseous material and char produced in the reactor into a high-temperature combustor and (c) producing low calorific gas or medium calorific gas in the combustor at relatively high temperature.    Also claimed is an apparatus for the gasification of wastes comprises a fluidised bed reactor and a high-temperature combustor.    USE -   For treating wastes e.g. sewage sludge, municipal waste and industrial waste by gasification, for use in power generation and in production of fuel gases.    ADVANTAGE -   Process and apparatus can be operated easily and simply, has high thermal efficiency and can produce low- or medium calorific gas which can be used in the generation of electric power and industrial fuel gases.