The production of renewable energy in agricultural biogas plants is being widely criticized because—among other things—most of the feedstock comes from purpose-grown crops like maize. These activities generate competitive pressure to other crops that are used for feeding or food production, worsening their affordability. Unique pretreatment technology that allows substitution of the purpose-grown crops by farming residues was built 6 years ago on a commercial basis in Pěčín under modest funding and without publicity. The design of the concept; financial assessment (...) and moral viewpoint were analyzed based on practical operating data. It showed that the apparatus improves economic, environmental and moral acceptance as well. However, according to the government’s view, public funding for this type of processing was shortened, “because waste materials represent a lower cost”. The impact of such governance was analyzed as well. (shrink)

The European Union’s funding of electricity made of biogas that is obtained from purpose-grown plants accelerated the global boom of renewable energy two decades ago. Tens of thousands of biogas plants were built in EU farms soon after. As this specific trend toward renewable energy globally spreads, it has the potential to alter the features of agriculture in the future. Such conceptual changes are related to a variety of socio-economic and environmental implications that manifest itself over a large time scale. (...) Regarding renewables made of purpose-grown plants, a majority of reservations are related to its production economy, particularly since these biofuels are expected to compete with food or feed. So far, little attention has been paid to the fact that the fields of farms that run biogas stations are subject to shortly repeated erosive crops followed by the intensive application of the fermentation residues obtained. The various types of soil on different European farms, which have been operating biogas stations for at least two decades, were analyzed. It was revealed for the first time that such practices cause soil degradation and pose a threat to food production, which has been overlooked until now. The relations between ethical and economical points of view are discussed. (shrink)

The unethical overuse of antibiotics to seek to achieve a shortening of the treatment period raises the cost of health services and poses a threat to humanity due to the gradual development of antibiotic resistance. Other consequences of our modern passion for antibiotics have appeared. Small concentrations of antibiotic residues in sewage waters slow down the metabolism of anaerobic microorganism thereby reducing the overall performance of the anaerobic fermentation used to detoxify and digest sewage and other collected organic wastes. Reduced (...) biogas yields represents a serious threat to the energy self-sufficiency of some waste-water treatment plants, so it might change them from energy producers into energy consumers. Morally justifiable production of renewable energy from bio-waste is also threatened by antibiotic residues that remain in the bio-waste. (shrink)

From the early days of philosophy, ethics and justice, there is wide consensus that the constancy of the laws establishes the legal system. On the other hand, the rate at which we accumulate knowledge is gaining speed like never before. Due to the recently increased attention of academics to climate change and other environmental issues, a lot of new knowledge has been obtained about carbon management, its role in nature and mechanisms regarding the formation and degradation of organic matter. A (...) multidisciplinary techno-economic assessment of current composting standards and laws that took into account the current state of knowledge about carbon management was carried out as a case study. Economic and environmental damage caused by outdated laws was revealed. In addition, it was found that the introduction of the best composts into the market is permitted, causing additional negative environmental as well as economic impacts. (shrink)

The trend of emerging biorefineries is to process the harvest as efficiently as possible and without any waste. From the most valuable phytomass, refined medicines, enzymes, dyes and other special reactants are created. Functional foods, food ingredients, oils, alcohol, solvents, plastics, fillers and a wide variety of other chemical products follow. After being treated with nutrient recovery techniques, biofuels or soil improvers are produced from the leftovers. Economic optimization algorithms have confirmed that such complex biorefineries can be financially viable only (...) when a high degree of feedstock concentration is included. Because the plant material is extremely voluminous before processing, the farming intensity of special plants increases in the nearest vicinity of agglomerations where the biorefineries are built for logistical reasons. Interdisciplinary analyses revealed that these optimization measures lead to significantly increased pollen levels in neighbouring urban areas and subsequently an increased risk of allergies, respectively costs to the national health system. A new moral dilemma between the shareholder’s profit and public interest was uncovered and subjected to disputation. (shrink)