Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/85012
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dc.contributor.authorKavolėlis, Bronius-
dc.coverage.spatialLT-
dc.date.accessioned2019-05-17T03:51:47Z-
dc.date.available2019-05-17T03:51:47Z-
dc.date.issued2003-
dc.identifier.issn13921134-
dc.identifier.otherVDU02-000046650-
dc.identifier.urihttps://hdl.handle.net/20.500.12259/85012-
dc.description.abstractGamybos sąlygomis tirta kiaulių laikymo technologijų įtaka amoniako koncentracijai ir emisijos intensyvumui. Sudaryta daugianarės regresijos lygtis, siejanti NH3 emisijos intensyvumą su vėdinimo intensyvumu, patalpos oro temperatūra ir santykiniu drėgniu. Laikant penimas kiaules ant betoninių grindų, amoniako koncentracija patalpoje viršijo leistiną ribą (20 ppm), o emisijos intensyvumas - nusistovėjusį standartą (3 kg kiaulei per metus). Taikant ištisines grotelines grindis, amoniako koncentracija patalpoje buvo apie 15 ppm, o emisijos intensyvumas - 2,5 kg kiaulei per metus. Mažiausia amoniako koncentracija (10ppm) ir mažiausias emisija (2,2 kg kiaulei per metus) buvo laikant kiaules ant kas savaitę kiečiamo gausaus šiaudų kraiko (vidutiniškai 2 kg šiaudų kiaulei per dieną). Suintensyvinus vėdinimą proporcingai padidėja amoniako emisijos intensyvumas. Todėl, jei patalpos oro santykinis drėgnis normalus, netinkslinga intensyvinti vėdinimo, norint sumažinti NH3 emisijąlt
dc.description.abstractApproximately 40% of the airborne pollution of nitrogen is in ammonia conformation. About 90% of the NH3 comes from agriculture. And losses from ventilation animal houses make up 18-37%. The ammonia evaporating in the animal house is harmful for the animals, poeple and environment. Thus not only the greatest permissible NH3 cocncentracion in the air of the animal house, but its emissions from the house to the atmosphere are limited as well. According to the standards of some countries the limit of NH3 enmission from one fattening pigs is up to 3 kg per year, but on ecological farms - up to 1.5 kg. Many researches mentions the following factors affecting the release of ammonia: N content in the manure, adsorption of ammonia N, urease activity, pH of the manure, manure temperature, C/N ratio of the manure, manure surface area, air movements in the building, air temperature and availability of oxygenen
dc.description.sponsorshipVytauto Didžiojo universitetas-
dc.description.sponsorshipŽemės ūkio akademija-
dc.format.extentp. 71-80-
dc.language.isolt-
dc.relation.ispartofŽemės ūkio inžinerija. , [T.] 35, Nr. 2 (2003)-
dc.subjectAmoniakaslt
dc.subjectKoncentracijalt
dc.subjectEmisijalt
dc.subjectLaikymo technologijalt
dc.subjectKraikaslt
dc.subjectVėdinimaslt
dc.subjectTemperatūralt
dc.subjectDrėgnislt
dc.subjectAmmoniaen
dc.subjectConcentracionen
dc.subjectEmissionen
dc.subjectHousing systemsen
dc.subjectStraw's litteren
dc.subjectVentilation rateen
dc.subjectTemperatureen
dc.subjectRelative humidityen
dc.subject.classificationStraipsnis kituose recenzuojamuose leidiniuose / Article in other peer-reviewed editions (S5)-
dc.subject.otherMechanikos inžinerija / Mechanical Engineering (T009)-
dc.titleAmoniako emisija penimių kiaulidėselt
dc.title.alternativeAmmonia emission from fattening pigstyen
dc.typeresearch article-
dc.date.updated2012-12-29T17:01Z-
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local.typeS-
item.grantfulltextopen-
item.fulltextWith Fulltext-
crisitem.author.deptŽemės ūkio akademija-
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications
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