THE INFLUENCE OF TRACE ELEMENTS ON ANAEROBIC DIGESTION PROCESS
Journal Title: Civil and Environmental Engineering Reports - Year 2018, Vol 4, Issue 28
Abstract
The article is the literature review on the importance of trace elements supplementation in the methane fermentation process. The production of biogas, including methane, as well as the efficiency of the process depend on the substrates to be fermented. Substances supplied with the substrate as well as products generated in the decomposition phases can inhibit the process. The factor limiting fermentation is the rate of enzymatic hydrolysis of substrates. Certain compounds, such as alkanes, alkenes, biphenol, aromatic hydrocarbons, alcohols and ketones, are not directly susceptible to hydrolysis. They undergo this process in the presence of extracellular enzymes. The instability of the methane fermentation process described in the literature may be related to the lack of trace elements or micronutrients. Trace elements (Co, Ni, Cu, Mn, Fe, Zn, Se and Mo) are components of enzymes, some bacterial nucleic acids and essential for the synthesis of vitamins. The role of some trace elements, eg. Fe or Mo, has been well understood, while the importance of others still needs to be clarified. Literature data indicate that supplementing trace elements not only prevents process inhibition, but can also improve its performance by providing higher methane production.<br/><br/>
Authors and Affiliations
Sylwia MYSZOGRAJ, Artur STADNIK, Ewelina PŁUCIENNIK-KOROPCZUK
Keywords
Related Articles
- EP ID EP427069
- DOI 10.2478/ceer-2018-0054
- Views 106
- Downloads 0
Determination of moisture transfer coefficient in building materials on the basis of kinetics of a one direction capillary rise
The article presents an original mathematical presentation and calculation procedure to determine a moisture transfer coefficient in building materials on the basis of kinetics of a one direction capillary rise.<br/><br/...
LIMIT ANALYSIS OF GEOMETRICALLY HARDENING COMPOSITE STEEL-CONCRETE SYSTEMS
The paper considers some results of creating load-carrying composite systems that have uprated strength, rigidity and safety, and therefore are called geometrically (self-) hardening systems. The optimization mathematic...
GEOTECHNICAL ISSUES OF SHALLOW MINING WITHIN THE UPPER SILESIAN INDUSTRIAL REGION
Mining activity, within the Upper Silesian Industrial Region resulted in numerous mining damage - especially the discontinuous deformations. They are developed in effect of shallow coal seams extraction or are connected...
SELECTED ANCIENT STONE BRIDGES WITH CORBELLED FALSE-ARCH STRUCTURE
The oldest man-made false-arch stone bridges are presented and briefly described. It is shown that this construction technique was based on the experiences of the first builders, formed at the junction of ancient Egyptia...
EXPERIMENTAL TESTING OF INNOVATIVE COLD-FORMED "GEB" SECTION
One of the major advantages of light gauge steel structures made of cold-formed steel sections is their low weight so the production of typical single-storey steel structures of this kind of profiles is still rising. The...