Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 2

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Content available remote Gazowe zanieczyszczenie powietrza w rejonach cmentarzy w okresie świątecznym
PL
Na terenie 14 cmentarzy w województwie lubelskim przeprowadzono badania, których celem była identyfikacja gazowych zanieczyszczeń chemicznych (H₂S, NH₃, NO₂, O₃, LZO). Badania wykonano czterokrotnie w okresie jesienno-zimowym. Porównano uzyskane wyniki z wartościami dopuszczalnymi. Stężenie poszczególnych substancji/zanieczyszczeń nie odbiegały od normy.
EN
The concn. of gas. chem. pollutants (H₂S, NH₃, NO₂, O₃, VOCs) in the air was detd. in 14 cemeteries in the Lublin Voivodeship. The tests were carried out 4 times in the autumn and winter period. The obtained results were compared with the permissible values. The concns. of individual substances/pollutants were within the standards.
EN
Animal production is a major source of environmental pollutants, so it is becoming crucial to search for new methods to reduce their release while maintaining animal welfare. The aim of the study was to apply natural additives to rabbit manure in ex situ conditions to reduce the volume of released gaseous pollutants like ammonia (NH3), methane (CH4) and hydrogen sulphide (H2S). The study was carried out in two stages, each with a control group and five experimental groups with additives, natural sorbents (zeolite, bentonite biochar, perlite, mixtures in various proportions of zeolite, biochar and bentonite as well as perlite and biochar) or dried plants containing saponins (Tribulus terrestris and Lysimachia nummularia). Pollutants from each group were measured continuously for one month. In stage 1, both in the case of NH3 and CH4, statistically significant differences were observed between the tested groups. The use of sorbent mix and Tribulus terrestris was shown to reduce the release of both NH3 (by 80% and 83%, respectively) and CH4 (by 17% and 25%, respectively). The greatest reduction of NH3 in stage 2 was achieved when perlite with the addition of biochar was used (56%), and CH4 was achieved when Bacillus azotofixans sp. nov. bacteria were used (38%).
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.