Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/84607
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dc.contributor.authorAškinis, Simanas-
dc.coverage.spatialLV-
dc.date.accessioned2019-05-17T03:18:32Z-
dc.date.available2019-05-17T03:18:32Z-
dc.date.issued2007-
dc.identifier.issn16914031-
dc.identifier.otherVDU02-000046173-
dc.identifier.urihttps://hdl.handle.net/20.500.12259/84607-
dc.description.abstractOn the basis of this research and the investigations of other authors (1992 - 2002), the paper presents the comparison of the treatment efficiency of domestic wastewater treatment facilities functioning by different natural means. From all the studied three natural wastewater treatment facilities, constructed wetlands are considered as most efficient for domestic wastewater treatment: here the removal of organic pollutants and biogenic compounds is 85-98% and 67-95% respectively. Biological ponds are most suitable for the treatment of domestic wastewater, the discharge and pollution of which is fluctuating within a wide range. However, such ponds do not always ensure the treatment until the allowable rates. Their treatment efficiency according to biochemical oxygen demand (BOD5) is 49.6%. Total nitrogen amount contained in wastewater outflow from the treatment facilities with biological ponds was on the average 22.2 mg lE-1. The biggest problem of those ponds is rather low P removal efficiency (only 29.5%). Therefore wastewater flowing out of the ponds needs additional treatment. The usage of subsoil filtration fields is limited because their arrangement requires light soils. When arranging the distribution pipeline below the freezing zone, in many places the requirement that the pipes must be 1 m above the maximum ground water level is violated. The pipes should be arranged in places where there is no recipient for treated wastewater outflow. The load of subsoil filtration fields should not exceed 300 m**3 haE-1 per month. From the economical point of view, domestic wastewater treatment facilities with flowing ponds require least expensesen
dc.description.sponsorshipVytauto Didžiojo universitetas-
dc.description.sponsorshipŽemės ūkio akademija-
dc.format.extentp. 245-251-
dc.language.isoen-
dc.relation.ispartofResearch for Rural Development 2007: International scientific conference proceedings. Jelgava : Latvia university of agriculture, 2007-
dc.relation.isreferencedbyCAB Abstracts-
dc.relation.isreferencedbyAGRIS-
dc.subjectWastewater treatmenten
dc.subjectHousehold wastesen
dc.subjectFiltrationen
dc.subjectPondsen
dc.subjectSubsoilen
dc.subjectResearchen
dc.subjectLithuaniaen
dc.subjectLatviaen
dc.subject.classificationStraipsnis kitose duomenų bazėse / Article in other databases (S4)-
dc.subject.otherAplinkos inžinerija / Environmental engineering (T004)-
dc.titleTreatment of domestic wastewater by natural meansen
dc.typeresearch article-
dcterms.bibliographicCitation14-
dc.date.updated2020-11-18T08:30Z-
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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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