Development of catalysts for anaerobic processing of liquid organic waste*

In the work, the development of a catalyst carrier of biomaterial for anaerobic processing of liquid organic waste was carried out. A highly porous cellular material (HPCM) made of high-alumina ceramics obtained by thermal destruction of a polymer matrix impregnated with a high-alumina ceramic slip was used as the carrier base. The catalyst coating was applied by blowing a conductive powder through a carrier pre-coated with an adhesive composition or by impregnating the carrier with a suspension of conductive glaze followed by firing. The conductive powder was the product of milling grinding ferromagnetic bodies in a vortex layer apparatus. An experimental setup has been developed and manufactured, including a vortex layer apparatus, a blower, and a chamber with a catalyst carrier. The plant operation was optimized using the response surface methodology. It has been established that it is rational to vary the mass of working bodies to obtain the required concentration while reducing the power consumption of the plant by minimizing the duration of its operation. The next steps are to study the efficiency of an anaerobic bioreactor with an integrated HPCM with a catalyst coating formed by sputtering and glazing to produce biohydrogen and biomethane during anaerobic bioconversion of organic matter of various wastes.& COPY; 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.