Commercial-scale utilization of greenhouse residues

Authors


Address for correspondence: Ing. Josef Maroušek, PhD, Department of Applied Plant Biotechnology, Faculty of Agriculture, University of South Bohemia, České Budějovice 370 05, Czech Republic. Tel.: +420 777 987 683; Fax: +420 777 987 683; e-mail: josef.marousek@gmail.com.

Abstract

Development of techniques utilizing waste without any additional energy or rare catalysts is a starting point for becoming sustainable. In the present work, the complex utilization of greenhouse residues was studied on a commercial scale. Only the energy produced by the process (8%) was used to run the technology, thanks to multilevel heat recuperation and high methane yields (over 340 m3 volatile solid t−1). Manifestations of labile carbon in relation to available nitrogen, methane yields, and the formation of inhibitors were investigated in detail. The results sweep away many false beliefs about the ratios of carbon to nitrogen and highlight the role of the availability of carbon in phytomass utilization.

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