Work

The synergistic effect of the thickened digestate treatment in the vortex layer apparatus prior to its recirculation into the reactor on the characteristics of anaerobic bioconversion of organic waste

Year: 2020

Type: conference-paper

Abstract: For the first time, the effect of thickened digestate treatment in a vortex layer apparatus (VLA) prior to its recirculation into anaerobic reactor on the efficiency of anaerobic bioconversion of an organic substrate was investigated. At the hydraulic retention time of the recirculated digestate in VLA for 30 seconds, of the substrate in the anaerobic bioreactor for 8 days and the recirculation coefficient of 1.5, the average specific yield of biogas increased by 75.2%, and the average volumetric methane production – by 16.8%. There was no increase in methane concentration in biogas, while the average concentration of hydrogen sulfide in biogas decreased by 8 times.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/1652/1/012014

Authors: Andrey A Kovalev, Dmitriy A Kovalev, Yuriy V Litti, Inna V Katraeva

Institutions: Federal Scientific Agroengineering Center VIM, Russian Academy of Sciences, Nizhny Novgorod State University of Architecture and Civil Engineering

Language: English

Topic: Anaerobic Digestion and Biogas Production

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Responsible consumption and production, Affordable and clean energy

Open Access status: diamond

Funder: Russian Foundation for Basic Research