Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 1
Written by Mariia VOROBEL, Oleh KLYM, Vasyl KAPLINSKYI, Myron PETRYSHYN, Taras PRUDYUS, Oksana SMOLIANINOVA, Olha STEFANYSHYN, Mariia TSAP, Andrii PYLYPETS, Ivan LUCHKA
In the structure of the animal husbandry production, a prominent place belongs to the pig industry thanks to the valuable products and quick payback. However, when providing the population with food, a large amount of waste accumulates, which is not only a valuable organic fertilizer, but also a producer of environmental pollution, since gaseous air pollutants are emitted into the atmosphere during their decomposition. As a result of the conducted research, the effectiveness of the investigated mineral fertilizers – phosphorite flour and slaked lime in reducing the level of ammonia (NH3), carbon dioxide (CO2), methane (CH4), nitrogen oxide (NO) and hydrogen sulfide (H2S) emissions from pig manure at storing it in lagoons was established. In particular, it was established that the addition of phosphorite flour and slaked lime to the pig manure in lagoons contributes to lower emissions of gases (NH3, CO2, CH4, NO, H2S), respectively by 18.4-33.6% and 8.8-30.8%. At the same time as the emission of the studied gases decreases, mineral fertilizers provide a lower level of the pH, i.e. it shifts to the acidic side. Thus, the establishment of the effectiveness of the investigated mineral fertilizers on the reduction of emissions of harmful gases from pig manure during its storage in lagoons indicate the perspective of their use to prevent environmental pollution in the pig industry.
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