Application of Calorimeter in Determination of Combustion Calorific Value of Sludge in Sewage Plant
Incineration is a common method of sludge treatment at present.The content of organic matter in sewage sludge is high.The water in sludge is treated and incinerated by certain process,can achieve the reduction of sludge,recycling and harmless effective treatment.At present,there is no national standard method to test the calorific value of sludge,domestic and foreign research referenced to the calorific value of coal,two measuring modes were used to determine the calorific value of sewage sludge by IKAC2000 calorimeter,the optimal method was used to determine the calorific value of dewatered sludge from 5 sewage treatment in Qingdao.The results showed that the rapid dynamic model was faster than the isothermal model to determine the calorific value of the sludge,the combustion heat of sludge samples can be determined successfully.This method was used to determine the calorific value of a sewage treatment dewatered sludge in Qingdao.The results showed that the calorific value of the sludge was about 10 000 J/g.