采用厌氧分步固体反应器系统进行蔬菜废弃物厌氧分解

最近获得专利的厌氧分步固体反应系统(美国专利号6342378B1)是一种新型的用于将固体废弃物转化为沼气以获取生物能源的新技术。此技术已被用以转化多种固体废弃物的科学研究,其中包括作物秸秆、动物粪便、食品废弃物和城市固体废弃物。研究结果证明,此技术不仅先进可行,而且操作简单。根据此技术,一种大型的用于将废弃物转化为能源的厌氧分步固体反映系统已经在美国开发出来。该文主要介绍此技术用于大蒜废弃物转化的研究结果

Anaerobic Digestion of Vegetable Waste With an Anaerobic Phased Solids Digester System

Anaerobic Phased Solids(APS) Digester system (US Patent 6342378B1) is a new anaerobic digestion technology for converting organic solid wastes into biogas for bioenergy generation. It has been studied for digesting a variety of solid wastes, including crop residues, animal wastes, food wastes and municipal solid wastes. The APS Digester system has been proven to a technical feasible and relatively simple to operate anaerobic digestion system. In this paper, research data on digestion of garlic wastes are reported. After digestion, 51% total solids and 62% volatile solids in the garlic waste were converted into biogas with a yield of 0.58 L/gVS. Based on the findings of this study and previous research, the pH value in the hydrolysis reactor should be controlled at 5.5 or above in order to ensure successful hydrolysis and acidogenesis and the pH value in the biogasification reactor is controlled at 6.8~ 7.8 for succesful methanogensis. Large scale APS Digester systems are being developed in the United States for waste to energy conversion.