| 摘要 |
Municipal sewage sludge is treated by melting in the furnace after mixing with combustion-aid materials having calories itself i.e. powdered, granular or massive or its mixt. type coal, broken charcoal or coke. An additional step is to odd additive selected from SiO2 40-60%, Al2O3 5-25%, FeO, CaO, K2O and Na2O to make 15-55% of compsn. ratio against the treated waste. |
