Determination of Chemical Oxygen Demand Using UV/O3
In this paper, we report on the development of a simple, fast, and environment-friendly UV/O 3 -based method as an improved alternative to the conventional chemical methods using dichromate or permanganate for determining chemical oxygen demand (COD) in water. In the method through the continuous mo...
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| Veröffentlicht in: | Water, air, and soil pollution air, and soil pollution, 2016-12, Vol.227 (12), p.1, Article 458 |
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| creator | Yu, Xiaodong Yang, Huizhong Sun, Li |
| description | In this paper, we report on the development of a simple, fast, and environment-friendly UV/O
3
-based method as an improved alternative to the conventional chemical methods using dichromate or permanganate for determining chemical oxygen demand (COD) in water. In the method through the continuous monitoring of O
3
and CO
2
(concentration and flow rate) before and after reaction, COD can be accurately determined. During the experiment, sample solutions with known COD concentration of 25, 12.5, 5, 2.5, and 1 ppm were first used to validate the feasibility of this new technique. These samples were treated under ambient temperature and pressure for 15 min before the complete digestion time for each sample was measured by analyzing the produced CO
2
concentration. After digestion, residual O
3
dissolved in solution was quantified by the indigo method. A linear relationship between the O
3
consumption and COD value was observed, and the slope of calibration curve was determined to be 0.34 with a
R
2
of 0.991. Detection limit of the current experimental setup is 0.81 ppm with a measurement range of 1–25 ppm. The precision of the COD measurement is within 5% of the actual concentration. This developed UV/O
3
method demonstrates viability in being applied to fast, reliable, and accurate COD monitoring. |
| doi_str_mv | 10.1007/s11270-016-3154-y |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_1842828720</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>4260345601</sourcerecordid><originalsourceid>FETCH-LOGICAL-c231y-894c59c2e6d52df0a40cda6deeead5893ec8c59f52bcbc528b807fab9d514c813</originalsourceid><addsrcrecordid>eNp1kD1PwzAURS0EEqXwA9giMZv6I47tEbVQkCp1oayWY7-UVI1T7FYi_x5XYWDhLXc59z7pIHRPySMlRM4SpUwSTGiFORUlHi7QhArJMdOcXaIJIaXGlZb6Gt2ktCP5tJITxBdwhNi1wR7bPhR9U8w_oWud3Rfr72ELoVhAZ4MvNqkN22LzMVvzW3TV2H2Cu9-cos3L8_v8Fa_Wy7f50wo7xumAlS6d0I5B5QXzDbElcd5WHgCsF0pzcCoDjWC1q51gqlZENrbWXtDSKcqn6GHcPcT-6wTpaHb9KYb80lBVMsWUZCRTdKRc7FOK0JhDbDsbB0OJObsxoxuT3ZizGzPkDhs7KbNhC_HP8r-lH2xvZlE</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1842828720</pqid></control><display><type>article</type><title>Determination of Chemical Oxygen Demand Using UV/O3</title><source>SpringerLink Journals</source><creator>Yu, Xiaodong ; Yang, Huizhong ; Sun, Li</creator><creatorcontrib>Yu, Xiaodong ; Yang, Huizhong ; Sun, Li</creatorcontrib><description>In this paper, we report on the development of a simple, fast, and environment-friendly UV/O
3
-based method as an improved alternative to the conventional chemical methods using dichromate or permanganate for determining chemical oxygen demand (COD) in water. In the method through the continuous monitoring of O
3
and CO
2
(concentration and flow rate) before and after reaction, COD can be accurately determined. During the experiment, sample solutions with known COD concentration of 25, 12.5, 5, 2.5, and 1 ppm were first used to validate the feasibility of this new technique. These samples were treated under ambient temperature and pressure for 15 min before the complete digestion time for each sample was measured by analyzing the produced CO
2
concentration. After digestion, residual O
3
dissolved in solution was quantified by the indigo method. A linear relationship between the O
3
consumption and COD value was observed, and the slope of calibration curve was determined to be 0.34 with a
R
2
of 0.991. Detection limit of the current experimental setup is 0.81 ppm with a measurement range of 1–25 ppm. The precision of the COD measurement is within 5% of the actual concentration. This developed UV/O
3
method demonstrates viability in being applied to fast, reliable, and accurate COD monitoring.</description><identifier>ISSN: 0049-6979</identifier><identifier>EISSN: 1573-2932</identifier><identifier>DOI: 10.1007/s11270-016-3154-y</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Ambient temperature ; Atmospheric Protection/Air Quality Control/Air Pollution ; Carbon dioxide ; Chemical oxygen demand ; Climate Change/Climate Change Impacts ; Earth and Environmental Science ; Environment ; Environmental monitoring ; Flow rates ; Gas flow ; Hydrogeology ; Lamps ; Methods ; Oxidation ; Potassium ; Process controls ; Reagents ; Sensors ; Soil Science & Conservation ; Statistical analysis ; Water quality ; Water Quality/Water Pollution</subject><ispartof>Water, air, and soil pollution, 2016-12, Vol.227 (12), p.1, Article 458</ispartof><rights>Springer International Publishing Switzerland 2016</rights><rights>Water, Air, & Soil Pollution is a copyright of Springer, 2016.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c231y-894c59c2e6d52df0a40cda6deeead5893ec8c59f52bcbc528b807fab9d514c813</citedby><cites>FETCH-LOGICAL-c231y-894c59c2e6d52df0a40cda6deeead5893ec8c59f52bcbc528b807fab9d514c813</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11270-016-3154-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11270-016-3154-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Yu, Xiaodong</creatorcontrib><creatorcontrib>Yang, Huizhong</creatorcontrib><creatorcontrib>Sun, Li</creatorcontrib><title>Determination of Chemical Oxygen Demand Using UV/O3</title><title>Water, air, and soil pollution</title><addtitle>Water Air Soil Pollut</addtitle><description>In this paper, we report on the development of a simple, fast, and environment-friendly UV/O
3
-based method as an improved alternative to the conventional chemical methods using dichromate or permanganate for determining chemical oxygen demand (COD) in water. In the method through the continuous monitoring of O
3
and CO
2
(concentration and flow rate) before and after reaction, COD can be accurately determined. During the experiment, sample solutions with known COD concentration of 25, 12.5, 5, 2.5, and 1 ppm were first used to validate the feasibility of this new technique. These samples were treated under ambient temperature and pressure for 15 min before the complete digestion time for each sample was measured by analyzing the produced CO
2
concentration. After digestion, residual O
3
dissolved in solution was quantified by the indigo method. A linear relationship between the O
3
consumption and COD value was observed, and the slope of calibration curve was determined to be 0.34 with a
R
2
of 0.991. Detection limit of the current experimental setup is 0.81 ppm with a measurement range of 1–25 ppm. The precision of the COD measurement is within 5% of the actual concentration. This developed UV/O
3
method demonstrates viability in being applied to fast, reliable, and accurate COD monitoring.</description><subject>Ambient temperature</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Carbon dioxide</subject><subject>Chemical oxygen demand</subject><subject>Climate Change/Climate Change Impacts</subject><subject>Earth and Environmental Science</subject><subject>Environment</subject><subject>Environmental monitoring</subject><subject>Flow rates</subject><subject>Gas flow</subject><subject>Hydrogeology</subject><subject>Lamps</subject><subject>Methods</subject><subject>Oxidation</subject><subject>Potassium</subject><subject>Process controls</subject><subject>Reagents</subject><subject>Sensors</subject><subject>Soil Science & Conservation</subject><subject>Statistical analysis</subject><subject>Water quality</subject><subject>Water Quality/Water 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Conservation</topic><topic>Statistical analysis</topic><topic>Water quality</topic><topic>Water Quality/Water Pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yu, Xiaodong</creatorcontrib><creatorcontrib>Yang, Huizhong</creatorcontrib><creatorcontrib>Sun, Li</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ABI/INFORM Collection</collection><collection>ABI/INFORM Global (PDF only)</collection><collection>Agricultural Science Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ABI/INFORM Global (Alumni 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3
-based method as an improved alternative to the conventional chemical methods using dichromate or permanganate for determining chemical oxygen demand (COD) in water. In the method through the continuous monitoring of O
3
and CO
2
(concentration and flow rate) before and after reaction, COD can be accurately determined. During the experiment, sample solutions with known COD concentration of 25, 12.5, 5, 2.5, and 1 ppm were first used to validate the feasibility of this new technique. These samples were treated under ambient temperature and pressure for 15 min before the complete digestion time for each sample was measured by analyzing the produced CO
2
concentration. After digestion, residual O
3
dissolved in solution was quantified by the indigo method. A linear relationship between the O
3
consumption and COD value was observed, and the slope of calibration curve was determined to be 0.34 with a
R
2
of 0.991. Detection limit of the current experimental setup is 0.81 ppm with a measurement range of 1–25 ppm. The precision of the COD measurement is within 5% of the actual concentration. This developed UV/O
3
method demonstrates viability in being applied to fast, reliable, and accurate COD monitoring.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s11270-016-3154-y</doi></addata></record> |
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| identifier | ISSN: 0049-6979 |
| ispartof | Water, air, and soil pollution, 2016-12, Vol.227 (12), p.1, Article 458 |
| issn | 0049-6979 1573-2932 |
| language | eng |
| recordid | cdi_proquest_journals_1842828720 |
| source | SpringerLink Journals |
| subjects | Ambient temperature Atmospheric Protection/Air Quality Control/Air Pollution Carbon dioxide Chemical oxygen demand Climate Change/Climate Change Impacts Earth and Environmental Science Environment Environmental monitoring Flow rates Gas flow Hydrogeology Lamps Methods Oxidation Potassium Process controls Reagents Sensors Soil Science & Conservation Statistical analysis Water quality Water Quality/Water Pollution |
| title | Determination of Chemical Oxygen Demand Using UV/O3 |
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