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2.1. Feedstock and Inoculum Sources

AP Agnieszka A. Pilarska
KB Karol Bula
KP Krzysztof Pilarski
MA Mariusz Adamski
AW Agnieszka Wolna-Maruwka
TK Tomasz Kałuża
PM Przemysław Magda
PB Piotr Boniecki
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The raw materials for biogas production used in this study included food waste from a confectionery plant (waste wafers with filling, WF) and from a dairy plant (waste cottage cheese (CHE)). Both plants were located in the vicinity of Poznań. As in the previous experiments, digested sewage sludge (SS) supplied by the municipal sewage treatment plant in Poznań was used as inoculum. At the same time, it also acted as an effective buffer for the system [33].

Table 1 presents the values of physicochemical parameters of the substrate and inoculum used in the discussed experiment.

Physicochemical properties of substrates and inoculum.

Cond.—conductivity, TS—total solids, VS—volatile solids.

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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