| 摘要 |
PURPOSE:To attain to conserve energy and to enhance a purifying degree of treated water by a method wherein high temp. steam is generated by a high temp. gas generated from the incinerating apparatus of an excretion treating apparatus and, by this high temp. steam, the filtrate separated in a pretreating apparatus is repeatedly evaporated by multiple utility boiler apparatus. CONSTITUTION:Excretion residue sent from a pretreating apparatus 1 is incinerated by an excretion residue incinerator 5 and the generated high temp. gas is burnt is a deodorizing furnace 8 to deodorize the same as well as to raise the temp. thereof and the resulting high temp. gas is sent into a siphon reboiler 12. Filtrate is evaporated in the boiler 12 to be separated into high temp. steam and concentrated filtrate and th steam is sent to heating boilers 20-22 as the heating source thereof and the filtrate is sent thereto to be concentrated. In these boilers, the high temp. steam is condensed to water to be sent into an ammonia degassing apparatus 60 and the conc. filtrate into a first mist separator 23. The sludge separation in the separators 23 , 25 and excretion residue is incinerated by an excretion residue incinerator 5. The condensed water is treated in the degassing apparatus 60 to remove ammonia components therein and further subjected to water treatment in a biological water treating apparatus to be utilized as washing water. |
