Nitrate removal from groundwater using constructed wetlands under various hydraulic loading rates
This study set up two flow-through pilot-scale constructed wetlands with the same size but various flow patterns (free water surface flow (FWS) and subsurface flow (SSF)) to receive a nitrate-contaminated groundwater. The effects of hydraulic loading rate (HLR) on nitrate removal as well as the diff...
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| Veröffentlicht in: | Bioresource technology 2008-11, Vol.99 (16), p.7504-7513 |
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| creator | Lin, Ying-Feng Jing, Shuh-Ren Lee, Der-Yuan Chang, Yih-Feng Shih, Kai-Chung |
| description | This study set up two flow-through pilot-scale constructed wetlands with the same size but various flow patterns (free water surface flow (FWS) and subsurface flow (SSF)) to receive a nitrate-contaminated groundwater. The effects of hydraulic loading rate (HLR) on nitrate removal as well as the difference in performance between the various types of wetlands were investigated. Nitrate removal rates of both wetlands increased with increasing HLR until a maximum value was reached. The maximum removal rates, occurred at HLR of 0.12 and 0.07md−1, were 0.910 and 1.161gNm−2d−1 for the FWS and SSF wetland, respectively. After the maximum values were reached, further increasing HLR led to a considerable decrease in nitrate removal rate. Nitrate removal efficiencies remained high (>85%) and effluent nitrate concentrations always satisfied drinking water standard ( |
| doi_str_mv | 10.1016/j.biortech.2008.02.017 |
| format | Article |
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The effects of hydraulic loading rate (HLR) on nitrate removal as well as the difference in performance between the various types of wetlands were investigated. Nitrate removal rates of both wetlands increased with increasing HLR until a maximum value was reached. The maximum removal rates, occurred at HLR of 0.12 and 0.07md−1, were 0.910 and 1.161gNm−2d−1 for the FWS and SSF wetland, respectively. After the maximum values were reached, further increasing HLR led to a considerable decrease in nitrate removal rate. Nitrate removal efficiencies remained high (>85%) and effluent nitrate concentrations always satisfied drinking water standard (<10mg NO3–NL−1) when HLR did not exceed 0.04md−1 for both FWS and SSF wetlands. The first-order nitrate removal rate constant tends to decrease with increasing HLRs. The FWS wetland provided significantly higher (p<0.05) organic carbon in effluent than the SSF wetland, while the SSF wetland exhibited significantly (p<0.05) lower effluent DO than the FWS wetland. However, there was no significant difference (p>0.05) in nitrate removal performance between the two types of constructed wetlands in this study except in one trial operating at HLR of 0.06–0.07md−1.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2008.02.017</identifier><identifier>PMID: 18387297</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Biological and medical sciences ; Biological treatment of waters ; Biotechnology ; Constructed wetland ; Denitrification ; Environment and pollution ; Fundamental and applied biological sciences. Psychology ; Groundwater ; Hydraulic loading rate ; Industrial applications and implications. Economical aspects ; Kinetics ; Models, Chemical ; Nitrate removal ; Nitrates - analysis ; Pilot Projects ; Waste Disposal, Fluid - methods ; Water ; Water Pollutants, Chemical - chemistry ; Water Purification - methods ; Water Supply ; Wetlands</subject><ispartof>Bioresource technology, 2008-11, Vol.99 (16), p.7504-7513</ispartof><rights>2008 Elsevier Ltd</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c548t-5f0792ce27a0adbaf6b23ff210c4aa888d535cbf07c4b53afbf7c28f2cf3f45f3</citedby><cites>FETCH-LOGICAL-c548t-5f0792ce27a0adbaf6b23ff210c4aa888d535cbf07c4b53afbf7c28f2cf3f45f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.biortech.2008.02.017$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20502330$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18387297$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lin, Ying-Feng</creatorcontrib><creatorcontrib>Jing, Shuh-Ren</creatorcontrib><creatorcontrib>Lee, Der-Yuan</creatorcontrib><creatorcontrib>Chang, Yih-Feng</creatorcontrib><creatorcontrib>Shih, Kai-Chung</creatorcontrib><title>Nitrate removal from groundwater using constructed wetlands under various hydraulic loading rates</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>This study set up two flow-through pilot-scale constructed wetlands with the same size but various flow patterns (free water surface flow (FWS) and subsurface flow (SSF)) to receive a nitrate-contaminated groundwater. The effects of hydraulic loading rate (HLR) on nitrate removal as well as the difference in performance between the various types of wetlands were investigated. Nitrate removal rates of both wetlands increased with increasing HLR until a maximum value was reached. The maximum removal rates, occurred at HLR of 0.12 and 0.07md−1, were 0.910 and 1.161gNm−2d−1 for the FWS and SSF wetland, respectively. After the maximum values were reached, further increasing HLR led to a considerable decrease in nitrate removal rate. Nitrate removal efficiencies remained high (>85%) and effluent nitrate concentrations always satisfied drinking water standard (<10mg NO3–NL−1) when HLR did not exceed 0.04md−1 for both FWS and SSF wetlands. The first-order nitrate removal rate constant tends to decrease with increasing HLRs. The FWS wetland provided significantly higher (p<0.05) organic carbon in effluent than the SSF wetland, while the SSF wetland exhibited significantly (p<0.05) lower effluent DO than the FWS wetland. However, there was no significant difference (p>0.05) in nitrate removal performance between the two types of constructed wetlands in this study except in one trial operating at HLR of 0.06–0.07md−1.</description><subject>Biological and medical sciences</subject><subject>Biological treatment of waters</subject><subject>Biotechnology</subject><subject>Constructed wetland</subject><subject>Denitrification</subject><subject>Environment and pollution</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Groundwater</subject><subject>Hydraulic loading rate</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Kinetics</subject><subject>Models, Chemical</subject><subject>Nitrate removal</subject><subject>Nitrates - analysis</subject><subject>Pilot Projects</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Water</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Purification - methods</subject><subject>Water Supply</subject><subject>Wetlands</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0U1v1DAQBmALUdGl8BdKLnBLOrbjxLmBqkKRKnqAnq2JP7ZeJXGxk6367-toF3rsydLomfFoXkLOKVQUaHOxq3of4mz1fcUAZAWsAtq-IRsqW16yrm3ekg10DZRSsPqUvE9pBwCctuwdOaWSyzajDcFffo442yLaMexxKFwMY7GNYZnMY67HYkl-2hY6TGmOi56tKR7tPOBkUpFNBnuMPiypuH8yEZfB62IIaNamdXD6QE4cDsl-PL5n5O771Z_L6_Lm9sfPy283pRa1nEvhoO2YtqxFQNOja3rGnWMUdI0opTSCC91npetecHS9azWTjmnHXS0cPyNfDnMfYvi72DSr0Sdth7yqzesp2om64aJ-HdayaVgjMmwOUMeQUrROPUQ_YnxSFNSagtqpfymoNQUFTOUUcuP58YelH615aTuePYPPR4BJ4-AiTtqn_46BAMY5ZPfp4BwGhduYzd1vBpQDdNDV3Sq-HoTNp917G1XS3k7aGh-tnpUJ_rVtnwGh_LV9</recordid><startdate>20081101</startdate><enddate>20081101</enddate><creator>Lin, Ying-Feng</creator><creator>Jing, Shuh-Ren</creator><creator>Lee, Der-Yuan</creator><creator>Chang, Yih-Feng</creator><creator>Shih, Kai-Chung</creator><general>Elsevier Ltd</general><general>[New York, NY]: Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7QH</scope><scope>7QO</scope><scope>7TV</scope><scope>7UA</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>L.G</scope><scope>P64</scope></search><sort><creationdate>20081101</creationdate><title>Nitrate removal from groundwater using constructed wetlands under various hydraulic loading rates</title><author>Lin, Ying-Feng ; Jing, Shuh-Ren ; Lee, Der-Yuan ; Chang, Yih-Feng ; Shih, Kai-Chung</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c548t-5f0792ce27a0adbaf6b23ff210c4aa888d535cbf07c4b53afbf7c28f2cf3f45f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Biological and medical sciences</topic><topic>Biological treatment of waters</topic><topic>Biotechnology</topic><topic>Constructed wetland</topic><topic>Denitrification</topic><topic>Environment and pollution</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Groundwater</topic><topic>Hydraulic loading rate</topic><topic>Industrial applications and implications. Economical aspects</topic><topic>Kinetics</topic><topic>Models, Chemical</topic><topic>Nitrate removal</topic><topic>Nitrates - analysis</topic><topic>Pilot Projects</topic><topic>Waste Disposal, Fluid - methods</topic><topic>Water</topic><topic>Water Pollutants, Chemical - chemistry</topic><topic>Water Purification - methods</topic><topic>Water Supply</topic><topic>Wetlands</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Ying-Feng</creatorcontrib><creatorcontrib>Jing, Shuh-Ren</creatorcontrib><creatorcontrib>Lee, Der-Yuan</creatorcontrib><creatorcontrib>Chang, Yih-Feng</creatorcontrib><creatorcontrib>Shih, Kai-Chung</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lin, Ying-Feng</au><au>Jing, Shuh-Ren</au><au>Lee, Der-Yuan</au><au>Chang, Yih-Feng</au><au>Shih, Kai-Chung</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nitrate removal from groundwater using constructed wetlands under various hydraulic loading rates</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2008-11-01</date><risdate>2008</risdate><volume>99</volume><issue>16</issue><spage>7504</spage><epage>7513</epage><pages>7504-7513</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>This study set up two flow-through pilot-scale constructed wetlands with the same size but various flow patterns (free water surface flow (FWS) and subsurface flow (SSF)) to receive a nitrate-contaminated groundwater. The effects of hydraulic loading rate (HLR) on nitrate removal as well as the difference in performance between the various types of wetlands were investigated. Nitrate removal rates of both wetlands increased with increasing HLR until a maximum value was reached. The maximum removal rates, occurred at HLR of 0.12 and 0.07md−1, were 0.910 and 1.161gNm−2d−1 for the FWS and SSF wetland, respectively. After the maximum values were reached, further increasing HLR led to a considerable decrease in nitrate removal rate. Nitrate removal efficiencies remained high (>85%) and effluent nitrate concentrations always satisfied drinking water standard (<10mg NO3–NL−1) when HLR did not exceed 0.04md−1 for both FWS and SSF wetlands. The first-order nitrate removal rate constant tends to decrease with increasing HLRs. The FWS wetland provided significantly higher (p<0.05) organic carbon in effluent than the SSF wetland, while the SSF wetland exhibited significantly (p<0.05) lower effluent DO than the FWS wetland. However, there was no significant difference (p>0.05) in nitrate removal performance between the two types of constructed wetlands in this study except in one trial operating at HLR of 0.06–0.07md−1.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>18387297</pmid><doi>10.1016/j.biortech.2008.02.017</doi><tpages>10</tpages></addata></record> |
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| ispartof | Bioresource technology, 2008-11, Vol.99 (16), p.7504-7513 |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Biological and medical sciences Biological treatment of waters Biotechnology Constructed wetland Denitrification Environment and pollution Fundamental and applied biological sciences. Psychology Groundwater Hydraulic loading rate Industrial applications and implications. Economical aspects Kinetics Models, Chemical Nitrate removal Nitrates - analysis Pilot Projects Waste Disposal, Fluid - methods Water Water Pollutants, Chemical - chemistry Water Purification - methods Water Supply Wetlands |
| title | Nitrate removal from groundwater using constructed wetlands under various hydraulic loading rates |
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