The Effect of the Load on Organic Matter on Methanogenesis in the Continuous Рrocess of Bioconversion of Anaerobic Bioreactor Substrates Pretreated in the Vortex Layer Apparatus

Abstract

The effect of a stepwise increase in the load of organic matter on methanogenesis in the continuous process of anaerobic bioconversion of biomass, carried out in an anaerobic bioreactor of the first generation, is studied. Pretreatment of the initial substrate in the vortex layer apparatus under laboratory conditions led to a 14 % increase in the specific biogas yield during the continuous process of anaerobic bioconversion of organic matter as compared to the untreated initial substrate with the same load on the organic matter. It was found that with a load of organic matter equal to 6.4 kg of ODM/m3·day, the maximum specific biogas yield was ensured, and at a load of 12.8 kg of ODM/m3·day, the maximum degree of decomposition of organic matter was achieved. It was shown that preliminary processing of the initial substrate increases the resistance of the anaerobic bioreactor to overloads in organic matter.