Determining the amount of biogas derived from cosubstrate on base executed corn silage and wastes of agricultural industries
Jakub Sikora , Kazimierz Rutkowski
AbstractThe XXI century is a time of great need for energy and the many environmental problems. Developed countries produce more waste vegetable and animal origin, which causes the first human non-utilization of energy, and secondly there is an increasing danger for the environment. The resulting biogas poses a major threat to humans, water, soil, and above all the atmosphere causing the increase of the greenhouse effect (Kacprzak et al., 2012). Even in the twentieth century noticed a huge increase in organic waste and pollution from agriculture and the food industry. Wastes include the essential elements of the development of carbohydrate, protein, fat, biogenic elements, microelements and vitamins. In the fermentation under aerobic and anaerobic conditions, bacteries break down the organic compounds and consequently take place the emission of gases into the atmosphere. Gases produced in the metabolism is mainly NH3, CH4, H2S, CO2, NOx and nitrogen compounds, phosphate and potassium. Compounds could enter the atmosphere and surface water alters the balance of the ecosystem and contribute to the eutrophication. Anaerobic fermentation can play a significant role related to produce bioenergy (methane). More specifically, this method transforms the energy contained in agricultural crops, the fuels such as biogas, without any contraindications that may be collected and transported. It is also a way of recycling organic wastes and the removal of oxygen from the wastes, which aims to reduce the adverse impact on the environment (Kacprzak et al., 2012). The study determined amount of biogas from organic materials which were in apple pomace silage corn in cosubstrate. Two control batches were made from apple pomace (100 %) and corn silage (100 %). Additionally, measurements of gas from maize silage and apple pomace were performed in the ratio of 50/50 % 75/25 % and 25/75. The number and composition of the evolved biogas, the pH and temperature of the feedstock were also examined. The highest total yield of biogas was presented in the sample in which the value of corn silage substrates and apple pomace was 50 % to 50 %. The efficiency of the feedstock reached 210 Ndm3·kg s. m. -1. Apple pomace is used to produce pectin, spirits and as a feed for cattle. The study showed that apple pomace is also a good substrate for biogas production.
|Publication size in sheets||0.5|
|Book||Trends in Agricultural Engineering 2013 : 5th Internationale Conference TAE 2013 : conference proceedings : 3-6 September, 2013, Prague, Czech Republic, 2013, Czech University of Life Sciences, Faculty of Engineering, ISBN 978-80-213-2388-9, 726 p.|
|Keywords in English||biogas, waste, agricultural industries|
|Publication indicators||= 0|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.