Optimization of Energy Production from Two-Stage Mesophilic−Thermophilic Anaerobic Digestion of Cheese Whey Using a Response Surface Methodology Approach

Andrey A. Kovalev; Elza R. Mikheeva; Vladimir Panchenko; Inna V. Katraeva; Dmitriy A. Kovalev; Elena A. Zhuravleva; Yuriy V. Litti

LAPSE:2023.7378

Published Article

LAPSE:2023.7378

Optimization of Energy Production from Two-Stage Mesophilic−Thermophilic Anaerobic Digestion of Cheese Whey Using a Response Surface Methodology Approach

Andrey A. Kovalev, Elza R. Mikheeva, Vladimir Panchenko, Inna V. Katraeva, Dmitriy A. Kovalev, Elena A. Zhuravleva, Yuriy V. Litti

February 24, 2023

Abstract
Spatial separation into acidogenic and methanogenic stages is considered a viable option to ensure process stability, energy efficiency and the better control of key anaerobic digestion (AD) parameters. The elucidation of the optimal modes of two-stage AD for the maximization of the recovery of biofuels (H2 and CH4) is still an urgent task, the main optimization criteria being the highest energy yield (EY) and energy production rate (EPR). In this work, a response surface methodology was used for an optimization of energy production from the two-stage mesophilic−thermophilic AD of cheese whey (CW). Three dilution rates of CW, providing values of 10.9, 14.53 and 21.8 g for the chemical oxygen demand (COD)/L in the influent and three hydraulic retention times (HRTs) (1, 2 and 3 days) in methanogenic biofilters at a constant HRT in an acidogenic biofilter of 0.42 days, were tested to optimize the EY and EPR. The desirability approach produced combined optimum conditions as follows: the dilution rate of the CW provided 17.58 g COD/L (corresponding to OLR of 6.5 g COD/(L·day)) in the influent and a HRT in the methanogenic biofilter of 2.28 days, both of which provided a maximum EPR of 80.263 kJ/(L·day) and EY of 9.56 kJ/g COD, with an overall desirability value of 0.883.

Record ID

LAPSE:2023.7378

Keywords

biohythane, cheese whey, mesophilic–thermophilic mode, Optimization, response surface methodology, two-stage anaerobic digestion

Subject

Optimization

Suggested Citation

Kovalev AA, Mikheeva ER, Panchenko V, Katraeva IV, Kovalev DA, Zhuravleva EA, Litti YV. Optimization of Energy Production from Two-Stage Mesophilic−Thermophilic Anaerobic Digestion of Cheese Whey Using a Response Surface Methodology Approach. (2023). LAPSE:2023.7378

Author Affiliations

Kovalev AA: Federal State Autonomous Educational Institution of Higher Education, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave., Nizhny Novgorod 603950, Russia; Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Cente [ORCID]
Mikheeva ER: Federal State Autonomous Educational Institution of Higher Education, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave., Nizhny Novgorod 603950, Russia
Panchenko V: Department of Theoretical and Applied Mechanics, Russian University of Transport, Moscow 127994, Russia [ORCID]
Katraeva IV: Federal State Autonomous Educational Institution of Higher Education, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave., Nizhny Novgorod 603950, Russia; Federal State Budgetary Educational Institution of Higher Education, Nizhny Novgorod State [ORCID]
Kovalev DA: Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 1st Institutskiy proezd, 5, Moscow 109428, Russia
Zhuravleva EA: Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Leninsky Prospekt, 33, 2, Moscow 119071, Russia
Litti YV: Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Leninsky Prospekt, 33, 2, Moscow 119071, Russia [ORCID]

Journal Name

Energies

Volume

15

Issue

23

First Page

8928

Year

2022

Publication Date

2022-11-25