NTA Removal by Activated Sludge-Field Study
The chelating agent trisodium nitrilotriacetate (NTA) can be used effectively in combination with polyphosphates in the formulation of heavy-duty detergents. Laboratory investigations have shown that NTA is biodegraded to water, carbon dioxide, and inorganic nitrogen. In the field study at Heath, Oh...
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| Veröffentlicht in: | Journal - Water Pollution Control Federation 1970-04, Vol.42 (4), p.631-640 |
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| container_title | Journal - Water Pollution Control Federation |
| container_volume | 42 |
| creator | Shumate, K. S. Thompson, J. E. Brookhart, J. D. Dean, C. L. |
| description | The chelating agent trisodium nitrilotriacetate (NTA) can be used effectively in combination with polyphosphates in the formulation of heavy-duty detergents. Laboratory investigations have shown that NTA is biodegraded to water, carbon dioxide, and inorganic nitrogen. In the field study at Heath, Ohio, NTA was shown to be removed by conventional activated sludge treatment. At influent NTA levels up to the maximum expected (∼8 mg/l) an average of 90 percent removal was found. At higher levels percent removal varied widely. The average removal was 75 percent. At no time during the 10-month study did the addition of NTA have any adverse effect on plant operation. Stream water taken downstream from the plant outfall degraded spiked NTA at a slightly faster rate than did water taken upstream from the plant outfall. Limited data from the field indicated that NTA degradation continued in the receiving stream. |
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S. ; Thompson, J. E. ; Brookhart, J. D. ; Dean, C. L.</creatorcontrib><description>The chelating agent trisodium nitrilotriacetate (NTA) can be used effectively in combination with polyphosphates in the formulation of heavy-duty detergents. Laboratory investigations have shown that NTA is biodegraded to water, carbon dioxide, and inorganic nitrogen. In the field study at Heath, Ohio, NTA was shown to be removed by conventional activated sludge treatment. At influent NTA levels up to the maximum expected (∼8 mg/l) an average of 90 percent removal was found. At higher levels percent removal varied widely. The average removal was 75 percent. At no time during the 10-month study did the addition of NTA have any adverse effect on plant operation. Stream water taken downstream from the plant outfall degraded spiked NTA at a slightly faster rate than did water taken upstream from the plant outfall. Limited data from the field indicated that NTA degradation continued in the receiving stream.</description><identifier>ISSN: 0043-1303</identifier><language>eng</language><publisher>Water Pollution Control Federation</publisher><subject>Acclimatization ; Activated sludge ; Biochemical oxygen demand ; Biodegradation ; Detergents ; Plant operations ; Streams ; Waste removal ; Wastewater ; Wastewater treatment</subject><ispartof>Journal - Water Pollution Control Federation, 1970-04, Vol.42 (4), p.631-640</ispartof><rights>Copyright 1970 The Water Pollution Control Federation</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/25036545$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/25036545$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,58016,58249</link.rule.ids></links><search><creatorcontrib>Shumate, K. S.</creatorcontrib><creatorcontrib>Thompson, J. E.</creatorcontrib><creatorcontrib>Brookhart, J. D.</creatorcontrib><creatorcontrib>Dean, C. L.</creatorcontrib><title>NTA Removal by Activated Sludge-Field Study</title><title>Journal - Water Pollution Control Federation</title><description>The chelating agent trisodium nitrilotriacetate (NTA) can be used effectively in combination with polyphosphates in the formulation of heavy-duty detergents. Laboratory investigations have shown that NTA is biodegraded to water, carbon dioxide, and inorganic nitrogen. In the field study at Heath, Ohio, NTA was shown to be removed by conventional activated sludge treatment. At influent NTA levels up to the maximum expected (∼8 mg/l) an average of 90 percent removal was found. At higher levels percent removal varied widely. The average removal was 75 percent. At no time during the 10-month study did the addition of NTA have any adverse effect on plant operation. Stream water taken downstream from the plant outfall degraded spiked NTA at a slightly faster rate than did water taken upstream from the plant outfall. Limited data from the field indicated that NTA degradation continued in the receiving stream.</description><subject>Acclimatization</subject><subject>Activated sludge</subject><subject>Biochemical oxygen demand</subject><subject>Biodegradation</subject><subject>Detergents</subject><subject>Plant operations</subject><subject>Streams</subject><subject>Waste removal</subject><subject>Wastewater</subject><subject>Wastewater treatment</subject><issn>0043-1303</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1970</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNotjMFqwkAQQPdQoVb7CYXcZWE2s5vEYxBtBbFQ07NsdmYkIWJJViF_X0FPj_cO70VNASxqg4Cv6m0YWgCEwhRTtdhXZfLD58vNd0k9JmWIzc1HpuTQXenEetNwd5d4pXGuJuK7gd-fnKnfzbpafend9-d2Ve50ayCP2lsUzHNJg8kRa2uEfMpMIWQkS5cRGQ4FkMg9CVIKGVonNYMvAhiPM_Xx-LZDvPTHv745-348pg4wc9bhPw2POu8</recordid><startdate>19700401</startdate><enddate>19700401</enddate><creator>Shumate, K. S.</creator><creator>Thompson, J. E.</creator><creator>Brookhart, J. D.</creator><creator>Dean, C. L.</creator><general>Water Pollution Control Federation</general><scope/></search><sort><creationdate>19700401</creationdate><title>NTA Removal by Activated Sludge-Field Study</title><author>Shumate, K. S. ; Thompson, J. E. ; Brookhart, J. D. ; Dean, C. L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j107t-a43f377f2c1733b41fda2eedcc6df956dd1ec80dffdccf3d206345fbe0a8c01a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1970</creationdate><topic>Acclimatization</topic><topic>Activated sludge</topic><topic>Biochemical oxygen demand</topic><topic>Biodegradation</topic><topic>Detergents</topic><topic>Plant operations</topic><topic>Streams</topic><topic>Waste removal</topic><topic>Wastewater</topic><topic>Wastewater treatment</topic><toplevel>online_resources</toplevel><creatorcontrib>Shumate, K. S.</creatorcontrib><creatorcontrib>Thompson, J. E.</creatorcontrib><creatorcontrib>Brookhart, J. D.</creatorcontrib><creatorcontrib>Dean, C. L.</creatorcontrib><jtitle>Journal - Water Pollution Control Federation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shumate, K. S.</au><au>Thompson, J. E.</au><au>Brookhart, J. D.</au><au>Dean, C. L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>NTA Removal by Activated Sludge-Field Study</atitle><jtitle>Journal - Water Pollution Control Federation</jtitle><date>1970-04-01</date><risdate>1970</risdate><volume>42</volume><issue>4</issue><spage>631</spage><epage>640</epage><pages>631-640</pages><issn>0043-1303</issn><abstract>The chelating agent trisodium nitrilotriacetate (NTA) can be used effectively in combination with polyphosphates in the formulation of heavy-duty detergents. Laboratory investigations have shown that NTA is biodegraded to water, carbon dioxide, and inorganic nitrogen. In the field study at Heath, Ohio, NTA was shown to be removed by conventional activated sludge treatment. At influent NTA levels up to the maximum expected (∼8 mg/l) an average of 90 percent removal was found. At higher levels percent removal varied widely. The average removal was 75 percent. At no time during the 10-month study did the addition of NTA have any adverse effect on plant operation. Stream water taken downstream from the plant outfall degraded spiked NTA at a slightly faster rate than did water taken upstream from the plant outfall. Limited data from the field indicated that NTA degradation continued in the receiving stream.</abstract><pub>Water Pollution Control Federation</pub><tpages>10</tpages></addata></record> |
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| identifier | ISSN: 0043-1303 |
| ispartof | Journal - Water Pollution Control Federation, 1970-04, Vol.42 (4), p.631-640 |
| issn | 0043-1303 |
| language | eng |
| recordid | cdi_jstor_primary_25036545 |
| source | JSTOR Archive Collection A-Z Listing |
| subjects | Acclimatization Activated sludge Biochemical oxygen demand Biodegradation Detergents Plant operations Streams Waste removal Wastewater Wastewater treatment |
| title | NTA Removal by Activated Sludge-Field Study |
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