ПОВЫШЕНИЕ ЭНЕРГОЭФФЕКТИВНОСТИ СИСТЕМЫ ОБРАБОТКИ ПОБОЧНЫХ ПРОДУКТОВ ЖИВОТНОВОДСТВА, ОСНОВАННОЙ НА ИХ АНАЭРОБНОЙ БИОКОНВЕРСИИ

Abstract

One of the anaerobic bioconversion process’s significant disadvantage at organic waste and animal by products’ treatment is the limiting stage, namely hydrolysis existing. A number of wellknown methods of livestock organic waste and by products before methane fermentation’s pretreatment are described. To eliminate this disadvantage and hydrolysis process accelerating, it was proposed to use an improved vortex layer apparatus with an integrated ferromagnetic core located coaxially in the apparatus vortex layer’s working chamber pretreatment system using. This system allows to accelerate not only hydrolysis, but also to introduce additionally iron particles into the substrate, which are a catalyst for methanogenesis using. In addition, the iron particles anaerobic oxidation products are nutrients for methanogenic microorganisms. At the same time, it is known that the vortex layer apparatus consumed energy significant part into waste heat, that can be disposed by a pump’s compression heat using is converted. An experimental installation was developed and created, and its operation’s description is given. The energy consumption’s investigated system structure for animal by products processing based on their anaerobic bioconversion was also determined. By the response surface methodology using, key factors’ influence was studied, namely, of the initial substrate’s pumping rate, the vortex layer apparatus cooling system for pumps’ circulation supply and electromagnetic field in the vortex layer apparatus’ coil frequency on the coolants’ temperatures in the heat pump’s compression evaporator and condenser and the initial substrate’s temperature’s changing and, as a result, the energy efficiency process preprocessing. By the central composite experiment’s design using, these factors’ optimal values with an electricity coefficient conversion into heat optimized value based on previously defined optimization’s criteria were found. The obtained experimental data allow to talk about in both the electricity conversion’s coefficient spent on the ABC operation and the energy system’s efficiency as a whole increasing.