Schieder D, Schneider R, Bischof F
ATZ-EVUS, Application and Technology Center, Department of Environmental Engineering, Kropfersrichter Str. 6-8, D-92237 Sulzbach-Rosenberg, Germany.
Water Sci Technol. 2000;41(3):181-7.
The recycling concept under consideration is based on the process of Thermal Hydrolysis (TDH) followed by an anaerobic digestion. By increasing pressure and temperature the organic part of the waste is split up in a first step into short-chain fragments that are biologically well suited for microorganisms. The following fermentation runs much faster and more complete than in conventional digestion processes and the biogas yield is increased. Left is just a small amount of a solid residue that can be easily dewatered and utilized as surrogate fuel for incineration or as compost additive. The thermal hydrolysis process allows a complete energy recovery from organic waste. During the total procedure more energy sources are produced than are needed for running the plant. The procedure is especially suited for wet organic waste and biosolids that are difficult to compost, such as food scraps, biological waste from compact residential areas and sewage sludge. As a complete disinfection is granted due to the process temperatures the procedure is also suited for carcasses.
正在考虑的循环利用概念基于热水解(TDH)工艺,随后进行厌氧消化。通过增加压力和温度,废物的有机部分在第一步被分解成短链片段,这些片段在生物学上非常适合微生物。接下来的发酵比传统消化过程运行得更快、更完全,沼气产量也会增加。剩下的只是少量的固体残渣,这些残渣可以很容易地脱水,并用作焚烧的替代燃料或堆肥添加剂。热水解工艺可从有机废物中实现完全的能量回收。在整个过程中产生的能源比运行该工厂所需的能源更多。该工艺特别适用于难以堆肥的湿有机废物和生物固体,如食物残渣、紧凑型居民区的生物废物和污水污泥。由于工艺温度可实现完全消毒,该工艺也适用于动物尸体。