Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/85299
Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Gasiūnas, Valerijus;Strusevičius, Zenonas;Strusevičienė, Sigita Marija
Title: Pollutant removal by horizontal subsurface flow constructed wetlands in Lithuania
Is part of: Journal of environmental science and health part a-toxic/hazardous. Part A, Toxic/hazardous substances and environmental engineering. , Vol. 40, iss. 6-7 (2005)
Extent: p. 1467-1478
Date: 2005
Keywords: Waste-water treatment;Design;Denitrification;Nitrification;Performance;Systems
Abstract: Horizontal subsurface flow constructed wetlands recently have been developed in Lithuania. They ensure the efficient removal of nutrients and organic matter. This article analyses BOD5 and N and P removal efficiency with respect to filter loads. To achieve a normative wastewater treatment level according to BOD5 (25 mg O-2 l(-1)), loads of filters should not exceed 5.8 g m(-2) day(-1), that is, the treatment of wastewater produced by population equivalent requires a filter area of 10.5 m(2). After treatment in filters total N of wastewater contains 55-85% of mineral N. Nitrite-N and nitrate-N make up 0.1% and 3.0% on average; the other part is composed of ammonia-N. Increasing total N concentrations contained in water outflow predetermine higher ammonia-N amounts. If water outflow contains 10 mg l(-1) of total N, ammonia-N makes up 51.5%; if it contains 40 mg l(-1), then ammonia-N makes up 81.0%. The average total nitrogen removal efficiency is 37-44%. P removal is affected by the physico-chemical characteristics of sand and qualitative composition of phosphorus contained in wastewater. P removal up to 2 mg I-1 from domestic and other wastewater of similar composition requires no higher than 0.15 g m(-2)/day(-1) load of filters according to total P
Internet: https://hdl.handle.net/20.500.12259/85299
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

Files in This Item:
marc.xml7.7 kBXMLView/Open

MARC21 XML metadata

Show full item record
Export via OAI-PMH Interface in XML Formats
Export to Other Non-XML Formats


CORE Recommender

WEB OF SCIENCETM
Citations 1

28
checked on Feb 27, 2021

Page view(s)

66
checked on Sep 8, 2020

Download(s)

14
checked on Sep 8, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.