Design Model for COD Removal in Constructed Wetlands Based on Biofilm Activity

Current design criteria for free-water-surface constructed wetlands are based on either empirical relationships or first-order reaction rates and do not emphasize the microbial activity. This study was conducted to evaluate the role of biofilm bacteria present in free-water-surface constructed wetla...

Full description

Saved in:
Bibliographic Details
Published in:Journal of environmental engineering (New York, N.Y.) N.Y.), 1998-09, Vol.124 (9), p.838-843
Main Authors: Polprasert, C, Khatiwada, N. R, Bhurtel, J
Format: Article
Language:English
Subjects:
TECHNICAL PAPERS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-a442t-1c72178cd3d821ab70b1642077b43f738fef2132e68cc9bdf42a9e79ab7b3abd3
cites cdi_FETCH-LOGICAL-a442t-1c72178cd3d821ab70b1642077b43f738fef2132e68cc9bdf42a9e79ab7b3abd3
container_end_page 843
container_issue 9
container_start_page 838
container_title Journal of environmental engineering (New York, N.Y.)
container_volume 124
creator Polprasert, C
Khatiwada, N. R
Bhurtel, J
description Current design criteria for free-water-surface constructed wetlands are based on either empirical relationships or first-order reaction rates and do not emphasize the microbial activity. This study was conducted to evaluate the role of biofilm bacteria present in free-water-surface constructed wetland beds in the removal of organic matter. A kinetic model incorporating the biofilm kinetics and dispersion number was proposed to predict chemical oxygen demand removal in free-water-surface constructed wetlands. The model parameters were determined from laboratory experiments and from the literature. The proposed kinetic model satisfactorily predicted chemical oxygen demand removal efficiencies in a pilot-scale constructed wetland unit located in the tropics. A design chart and a design example based on the kinetic model are given.
doi_str_mv 10.1061/(ASCE)0733-9372(1998)124:9(838)
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_27511857</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>13615351</sourcerecordid><originalsourceid>FETCH-LOGICAL-a442t-1c72178cd3d821ab70b1642077b43f738fef2132e68cc9bdf42a9e79ab7b3abd3</originalsourceid><addsrcrecordid>eNqFkVtLwzAYQIMoOC__IU-6PVTzJVmT-CBs3byhDtShbyFtU6l0zWw6wX9v6tRHFwhJ4HAI30HoGMgJkBhO-6PHZDoggrFIMUH7oJQcAOVnqi-ZHGyhHijOIiEF2Ua9P24X7Xn_RgjwWIkeup9YX77W-M7ltsKFa3Aym-AHu3AfpsJljRNX-7ZZZa3N8bNtK1PnHo-ND09X43HpirJa4FHWlh9l-3mAdgpTeXv4c-6j-cX0KbmKbmeX18noNjKc0zaCTFAQMstZLimYVJAUYk6JEClnhWCysAUFRm0ss0ylecGpUVaoQKbMpDnbR0dr77Jx7yvrW70ofWar8D3rVl5TMQSQQ7ERBEGUFIpsBlkMQzaEAJ6vwaxx3je20MumXJjmUwPRXRmtuzK6m7juJq67MjqU0UqHMkHwshaY4NdvbtXUYVT6ZjadTuYklKGcdEuFHfjvO_y6_1d_AVmWmUo</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>13615351</pqid></control><display><type>article</type><title>Design Model for COD Removal in Constructed Wetlands Based on Biofilm Activity</title><source>American Society of Civil Engineers</source><source>Business Source Ultimate</source><creator>Polprasert, C ; Khatiwada, N. R ; Bhurtel, J</creator><creatorcontrib>Polprasert, C ; Khatiwada, N. R ; Bhurtel, J</creatorcontrib><description>Current design criteria for free-water-surface constructed wetlands are based on either empirical relationships or first-order reaction rates and do not emphasize the microbial activity. This study was conducted to evaluate the role of biofilm bacteria present in free-water-surface constructed wetland beds in the removal of organic matter. A kinetic model incorporating the biofilm kinetics and dispersion number was proposed to predict chemical oxygen demand removal in free-water-surface constructed wetlands. The model parameters were determined from laboratory experiments and from the literature. The proposed kinetic model satisfactorily predicted chemical oxygen demand removal efficiencies in a pilot-scale constructed wetland unit located in the tropics. A design chart and a design example based on the kinetic model are given.</description><identifier>ISSN: 0733-9372</identifier><identifier>EISSN: 1943-7870</identifier><identifier>DOI: 10.1061/(ASCE)0733-9372(1998)124:9(838)</identifier><language>eng</language><publisher>American Society of Civil Engineers</publisher><subject>TECHNICAL PAPERS</subject><ispartof>Journal of environmental engineering (New York, N.Y.), 1998-09, Vol.124 (9), p.838-843</ispartof><rights>Copyright © 1998 American Society of Civil Engineers</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a442t-1c72178cd3d821ab70b1642077b43f738fef2132e68cc9bdf42a9e79ab7b3abd3</citedby><cites>FETCH-LOGICAL-a442t-1c72178cd3d821ab70b1642077b43f738fef2132e68cc9bdf42a9e79ab7b3abd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)0733-9372(1998)124:9(838)$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)0733-9372(1998)124:9(838)$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,776,780,3239,10049,27901,27902,75933,75941</link.rule.ids></links><search><creatorcontrib>Polprasert, C</creatorcontrib><creatorcontrib>Khatiwada, N. R</creatorcontrib><creatorcontrib>Bhurtel, J</creatorcontrib><title>Design Model for COD Removal in Constructed Wetlands Based on Biofilm Activity</title><title>Journal of environmental engineering (New York, N.Y.)</title><description>Current design criteria for free-water-surface constructed wetlands are based on either empirical relationships or first-order reaction rates and do not emphasize the microbial activity. This study was conducted to evaluate the role of biofilm bacteria present in free-water-surface constructed wetland beds in the removal of organic matter. A kinetic model incorporating the biofilm kinetics and dispersion number was proposed to predict chemical oxygen demand removal in free-water-surface constructed wetlands. The model parameters were determined from laboratory experiments and from the literature. The proposed kinetic model satisfactorily predicted chemical oxygen demand removal efficiencies in a pilot-scale constructed wetland unit located in the tropics. A design chart and a design example based on the kinetic model are given.</description><subject>TECHNICAL PAPERS</subject><issn>0733-9372</issn><issn>1943-7870</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNqFkVtLwzAYQIMoOC__IU-6PVTzJVmT-CBs3byhDtShbyFtU6l0zWw6wX9v6tRHFwhJ4HAI30HoGMgJkBhO-6PHZDoggrFIMUH7oJQcAOVnqi-ZHGyhHijOIiEF2Ua9P24X7Xn_RgjwWIkeup9YX77W-M7ltsKFa3Aym-AHu3AfpsJljRNX-7ZZZa3N8bNtK1PnHo-ND09X43HpirJa4FHWlh9l-3mAdgpTeXv4c-6j-cX0KbmKbmeX18noNjKc0zaCTFAQMstZLimYVJAUYk6JEClnhWCysAUFRm0ss0ylecGpUVaoQKbMpDnbR0dr77Jx7yvrW70ofWar8D3rVl5TMQSQQ7ERBEGUFIpsBlkMQzaEAJ6vwaxx3je20MumXJjmUwPRXRmtuzK6m7juJq67MjqU0UqHMkHwshaY4NdvbtXUYVT6ZjadTuYklKGcdEuFHfjvO_y6_1d_AVmWmUo</recordid><startdate>19980901</startdate><enddate>19980901</enddate><creator>Polprasert, C</creator><creator>Khatiwada, N. R</creator><creator>Bhurtel, J</creator><general>American Society of Civil Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TV</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>19980901</creationdate><title>Design Model for COD Removal in Constructed Wetlands Based on Biofilm Activity</title><author>Polprasert, C ; Khatiwada, N. R ; Bhurtel, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a442t-1c72178cd3d821ab70b1642077b43f738fef2132e68cc9bdf42a9e79ab7b3abd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>TECHNICAL PAPERS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Polprasert, C</creatorcontrib><creatorcontrib>Khatiwada, N. R</creatorcontrib><creatorcontrib>Bhurtel, J</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 3: Aquatic Pollution &amp; Environmental Quality</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of environmental engineering (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Polprasert, C</au><au>Khatiwada, N. R</au><au>Bhurtel, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Design Model for COD Removal in Constructed Wetlands Based on Biofilm Activity</atitle><jtitle>Journal of environmental engineering (New York, N.Y.)</jtitle><date>1998-09-01</date><risdate>1998</risdate><volume>124</volume><issue>9</issue><spage>838</spage><epage>843</epage><pages>838-843</pages><issn>0733-9372</issn><eissn>1943-7870</eissn><abstract>Current design criteria for free-water-surface constructed wetlands are based on either empirical relationships or first-order reaction rates and do not emphasize the microbial activity. This study was conducted to evaluate the role of biofilm bacteria present in free-water-surface constructed wetland beds in the removal of organic matter. A kinetic model incorporating the biofilm kinetics and dispersion number was proposed to predict chemical oxygen demand removal in free-water-surface constructed wetlands. The model parameters were determined from laboratory experiments and from the literature. The proposed kinetic model satisfactorily predicted chemical oxygen demand removal efficiencies in a pilot-scale constructed wetland unit located in the tropics. A design chart and a design example based on the kinetic model are given.</abstract><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)0733-9372(1998)124:9(838)</doi><tpages>6</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0733-9372
ispartof Journal of environmental engineering (New York, N.Y.), 1998-09, Vol.124 (9), p.838-843
issn 0733-9372
1943-7870
language eng
recordid cdi_proquest_miscellaneous_27511857
source American Society of Civil Engineers; Business Source Ultimate
subjects TECHNICAL PAPERS
title Design Model for COD Removal in Constructed Wetlands Based on Biofilm Activity
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-10T12%3A31%3A52IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Design%20Model%20for%20COD%20Removal%20in%20Constructed%20Wetlands%20Based%20on%20Biofilm%20Activity&rft.jtitle=Journal%20of%20environmental%20engineering%20(New%20York,%20N.Y.)&rft.au=Polprasert,%20C&rft.date=1998-09-01&rft.volume=124&rft.issue=9&rft.spage=838&rft.epage=843&rft.pages=838-843&rft.issn=0733-9372&rft.eissn=1943-7870&rft_id=info:doi/10.1061/(ASCE)0733-9372(1998)124:9(838)&rft_dat=%3Cproquest_cross%3E13615351%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-a442t-1c72178cd3d821ab70b1642077b43f738fef2132e68cc9bdf42a9e79ab7b3abd3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=13615351&rft_id=info:pmid/&rfr_iscdi=true