Analysis of energy consumption of the process of composting dairy sludge in hyperbaric conditions
Analiza energochłonności procesu kompostowania osadów mleczarskich w warunkach hiperbarycznych
Bryan Romankiewicz, Michał Reguła, Rafał Różański, Marta Potempska, Błażej Gaze, Bernard Knutel, Paulina Wojtko, Iryna Drozdovych, Krzysztof Kawa
Streszczenie
The article presents the results of the energy consumption analysis of the process of composting dairy sewage
sludge in hyperbaric conditions. The experiment assumed eight different tests, four of which took place with an air exchange
frequency (tAE) of 4 h, and another four with tAE = 8 h. Additionally, the tests were carried out in four different pressure
variants: 0 kPa (atmospheric pressure), 50 kPa, 100 kPa and 150 kPa. All tests were based on the same input material,
characterized by an original humidity of 80% and a mass of 2000 g. During the sewage sludge composting process, various
parameters of the obtained compost were analyzed, including moisture content, pH, loss on ignition (LOI), C:N ratio, nutrient
content (P, K), and microbial respiratory activity (AT4). Electricity consumption was measured for each of the eight
experiments, and the results were analyzed. The research aimed to determine the impact of various factors on the composting
process and electricity consumption.
sludge in hyperbaric conditions. The experiment assumed eight different tests, four of which took place with an air exchange
frequency (tAE) of 4 h, and another four with tAE = 8 h. Additionally, the tests were carried out in four different pressure
variants: 0 kPa (atmospheric pressure), 50 kPa, 100 kPa and 150 kPa. All tests were based on the same input material,
characterized by an original humidity of 80% and a mass of 2000 g. During the sewage sludge composting process, various
parameters of the obtained compost were analyzed, including moisture content, pH, loss on ignition (LOI), C:N ratio, nutrient
content (P, K), and microbial respiratory activity (AT4). Electricity consumption was measured for each of the eight
experiments, and the results were analyzed. The research aimed to determine the impact of various factors on the composting
process and electricity consumption.