Sewage sludge incineration with household refuse

摘要

Due to fact that mechanical dewatered sewage sludge will be no longer allowed to put on landfill or will be used for agriculture purpose, there must be a possibility to use this "waste to energy". This paper will show the possibility how to incinerate sewage sludge in household refuse incineration places. The benefit out of this technologies there is a given infra-structure for burning any kind of different waste. Furthermore sewage sludge, especially dewatered with centrifuges or chamber filter press, has a calorific value like brown coal and is giving to the waste a certain kind of extra energy. There are five possibilities to inject the mechanical dewatered sewage sludge into the incinerating process: 1. Spreading the sludge on top of the household rubbish in the waste receiving bunker 2. Placing the sludge on top of the household rubbish at the feed chute 3. Injection of sludge into the household rubbish feed chute 4. Injection of sludge into the incineration chamber 5. Spreading the sludge into the incineration chamber The paper will indicate the pro and contra of this five different methods of placing the sludge into the incineration process. Furthermore the paper will indicate that all these five different methods could be done on existing household rubbish incinerating places, so it will be easy for operators of household refuse incinerating places to add this co-incineration process to get a beneficiation of sewage sludge as an added energy for their incinerating plants.