Evaluating 5 and 8 pH-point titrations for measuring VFA in full-scale primary sludge hydrolysate

An evaluation of 5 and 8 pH-point titrimetric methods for determining volatile fatty acids (VFAs) was conducted, and the results were compared for tap water and primary treated wastewater at the laboratory scale. These techniques were then applied to full-scale primary sludge hydrolysate, and the re...

Full description

Saved in:
Bibliographic Details
Published in:Water S. A. 2013-01, Vol.39 (1), p.17-22
Main Authors: Sandstrom, D., Hey, T., Ibrahim, V.
Format: Article
Language:English
Subjects:
Acidity
Analysis
Chromatography
Contamination
Drinking water
Effluents
Fatty acids
Full-scale
Gas chromatography
Hydrogen-ion concentration
Hydrologic analysis
Hydrolysates
Hydrolysis
Measurement
Methods
Multiple pH-point titration
Primary sludge
Primary sludge hydrolysis
Purification
Settlers
Sewage
Sludge
Titration
Volatile fatty acids
Volumetric analysis
Waste water
Wastewater
Wastewater treatment
Water treatment
Citations: 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-c499t-755999ba407e753c62be07d787e267f2dca2fa85499de8eb8b589897294cea8c3
cites
container_end_page 22
container_issue 1
container_start_page 17
container_title Water S. A.
container_volume 39
creator Sandstrom, D.
Hey, T.
Ibrahim, V.
description An evaluation of 5 and 8 pH-point titrimetric methods for determining volatile fatty acids (VFAs) was conducted, and the results were compared for tap water and primary treated wastewater at the laboratory scale. These techniques were then applied to full-scale primary sludge hydrolysate, and the results were compared with those obtained via gas chromatography. The comparison showed that the VFA concentrations measured with the two titration methods were higher than those obtained via gas chromatography, differing by 9 and 13 mg COD.ℓ-1 for the hydrolysate and by 5 and 6 mg COD.ℓ-1 for the ordinary primary settler effluent. No improvement in the accuracy of VFA concentration measurement was obtained from applying the 8 pH-point titration method instead of the 5 point method. The 5 pH-point method was successfully applied to determine VFA in full-scale primary sludge hydrolysate and was shown to be equally efficient to the methods that are routinely-used for this purpose.
doi_str_mv 10.4314/wsa.v39i1.3
format article
fullrecord <record><control><sourceid>gale_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_1372060640</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A330251726</galeid><sabinet_id>10520/EJC131264</sabinet_id><sourcerecordid>A330251726</sourcerecordid><originalsourceid>FETCH-LOGICAL-c499t-755999ba407e753c62be07d787e267f2dca2fa85499de8eb8b589897294cea8c3</originalsourceid><addsrcrecordid>eNpt0V9rHCEQAPCltNA07VO_gFAKhbJXV91VH4_j0qQE8tLkVWbd2avB063upty3r5cL9A_BB0V_M4wzVfW-oSvBG_HlV4bVA9euWfEX1RnlUtVCcvXyr_Pr6k3O95QyzoU-q2D7AH6B2YUdaQmEgSgyXdZTdGEms5tTeYohkzEmskfISzrKu4s1cYGMi_d1tuCRTMntIR1I9suwQ_LjMKToDxlmfFu9GsFnfPe0n1e3F9vvm8v6-ubr1WZ9XVuh9VzLttVa9yCoRNly27EeqRykksg6ObLBAhtBtQUPqLBXfau00pJpYRGU5efVp1PeKcWfC-bZ7F226D0EjEs2DZeMdrQTtNAP_9H7uKRQqiuq67ikJe8ftSsfNC6MsXTDHpOaNeeUtY1kXVGrZ1RZA-6djQFHV-7_Cfh8CrAp5pxwNE-9Mw01xymaMkXzOEXDi_540hl6F3A2GXBa-mJbRs3226bhDesE_w3K3Joa</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1366370972</pqid></control><display><type>article</type><title>Evaluating 5 and 8 pH-point titrations for measuring VFA in full-scale primary sludge hydrolysate</title><source>Access via ProQuest (Open Access)</source><source>Free Full-Text Journals in Chemistry</source><creator>Sandstrom, D. ; Hey, T. ; Ibrahim, V.</creator><creatorcontrib>Sandstrom, D. ; Hey, T. ; Ibrahim, V.</creatorcontrib><description>An evaluation of 5 and 8 pH-point titrimetric methods for determining volatile fatty acids (VFAs) was conducted, and the results were compared for tap water and primary treated wastewater at the laboratory scale. These techniques were then applied to full-scale primary sludge hydrolysate, and the results were compared with those obtained via gas chromatography. The comparison showed that the VFA concentrations measured with the two titration methods were higher than those obtained via gas chromatography, differing by 9 and 13 mg COD.ℓ-1 for the hydrolysate and by 5 and 6 mg COD.ℓ-1 for the ordinary primary settler effluent. No improvement in the accuracy of VFA concentration measurement was obtained from applying the 8 pH-point titration method instead of the 5 point method. The 5 pH-point method was successfully applied to determine VFA in full-scale primary sludge hydrolysate and was shown to be equally efficient to the methods that are routinely-used for this purpose.</description><identifier>ISSN: 0378-4738</identifier><identifier>EISSN: 0378-4738</identifier><identifier>DOI: 10.4314/wsa.v39i1.3</identifier><language>eng</language><publisher>Gezina: Water Research Commission (WRC)</publisher><subject>Acidity ; Analysis ; Chromatography ; Contamination ; Drinking water ; Effluents ; Fatty acids ; Full-scale ; Gas chromatography ; Hydrogen-ion concentration ; Hydrologic analysis ; Hydrolysates ; Hydrolysis ; Measurement ; Methods ; Multiple pH-point titration ; Primary sludge ; Primary sludge hydrolysis ; Purification ; Settlers ; Sewage ; Sludge ; Titration ; Volatile fatty acids ; Volumetric analysis ; Waste water ; Wastewater ; Wastewater treatment ; Water treatment</subject><ispartof>Water S. A., 2013-01, Vol.39 (1), p.17-22</ispartof><rights>COPYRIGHT 2013 Water Research Commission</rights><rights>Copyright Water Research Commission Jan 2013</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c499t-755999ba407e753c62be07d787e267f2dca2fa85499de8eb8b589897294cea8c3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/1366370972/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1366370972?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,25753,27924,27925,37012,37013,44590,75126</link.rule.ids></links><search><creatorcontrib>Sandstrom, D.</creatorcontrib><creatorcontrib>Hey, T.</creatorcontrib><creatorcontrib>Ibrahim, V.</creatorcontrib><title>Evaluating 5 and 8 pH-point titrations for measuring VFA in full-scale primary sludge hydrolysate</title><title>Water S. A.</title><description>An evaluation of 5 and 8 pH-point titrimetric methods for determining volatile fatty acids (VFAs) was conducted, and the results were compared for tap water and primary treated wastewater at the laboratory scale. These techniques were then applied to full-scale primary sludge hydrolysate, and the results were compared with those obtained via gas chromatography. The comparison showed that the VFA concentrations measured with the two titration methods were higher than those obtained via gas chromatography, differing by 9 and 13 mg COD.ℓ-1 for the hydrolysate and by 5 and 6 mg COD.ℓ-1 for the ordinary primary settler effluent. No improvement in the accuracy of VFA concentration measurement was obtained from applying the 8 pH-point titration method instead of the 5 point method. The 5 pH-point method was successfully applied to determine VFA in full-scale primary sludge hydrolysate and was shown to be equally efficient to the methods that are routinely-used for this purpose.</description><subject>Acidity</subject><subject>Analysis</subject><subject>Chromatography</subject><subject>Contamination</subject><subject>Drinking water</subject><subject>Effluents</subject><subject>Fatty acids</subject><subject>Full-scale</subject><subject>Gas chromatography</subject><subject>Hydrogen-ion concentration</subject><subject>Hydrologic analysis</subject><subject>Hydrolysates</subject><subject>Hydrolysis</subject><subject>Measurement</subject><subject>Methods</subject><subject>Multiple pH-point titration</subject><subject>Primary sludge</subject><subject>Primary sludge hydrolysis</subject><subject>Purification</subject><subject>Settlers</subject><subject>Sewage</subject><subject>Sludge</subject><subject>Titration</subject><subject>Volatile fatty acids</subject><subject>Volumetric analysis</subject><subject>Waste water</subject><subject>Wastewater</subject><subject>Wastewater treatment</subject><subject>Water treatment</subject><issn>0378-4738</issn><issn>0378-4738</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNpt0V9rHCEQAPCltNA07VO_gFAKhbJXV91VH4_j0qQE8tLkVWbd2avB063upty3r5cL9A_BB0V_M4wzVfW-oSvBG_HlV4bVA9euWfEX1RnlUtVCcvXyr_Pr6k3O95QyzoU-q2D7AH6B2YUdaQmEgSgyXdZTdGEms5tTeYohkzEmskfISzrKu4s1cYGMi_d1tuCRTMntIR1I9suwQ_LjMKToDxlmfFu9GsFnfPe0n1e3F9vvm8v6-ubr1WZ9XVuh9VzLttVa9yCoRNly27EeqRykksg6ObLBAhtBtQUPqLBXfau00pJpYRGU5efVp1PeKcWfC-bZ7F226D0EjEs2DZeMdrQTtNAP_9H7uKRQqiuq67ikJe8ftSsfNC6MsXTDHpOaNeeUtY1kXVGrZ1RZA-6djQFHV-7_Cfh8CrAp5pxwNE-9Mw01xymaMkXzOEXDi_540hl6F3A2GXBa-mJbRs3226bhDesE_w3K3Joa</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Sandstrom, D.</creator><creator>Hey, T.</creator><creator>Ibrahim, V.</creator><general>Water Research Commission (WRC)</general><general>Water Research Commission</general><scope>AEIZH</scope><scope>JRA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7ST</scope><scope>7T7</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>CWDGH</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H97</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>L6V</scope><scope>LK8</scope><scope>M2O</scope><scope>M2P</scope><scope>M7P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P64</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>SOI</scope><scope>7SU</scope><scope>KR7</scope></search><sort><creationdate>20130101</creationdate><title>Evaluating 5 and 8 pH-point titrations for measuring VFA in full-scale primary sludge hydrolysate</title><author>Sandstrom, D. ; Hey, T. ; Ibrahim, V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c499t-755999ba407e753c62be07d787e267f2dca2fa85499de8eb8b589897294cea8c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Acidity</topic><topic>Analysis</topic><topic>Chromatography</topic><topic>Contamination</topic><topic>Drinking water</topic><topic>Effluents</topic><topic>Fatty acids</topic><topic>Full-scale</topic><topic>Gas chromatography</topic><topic>Hydrogen-ion concentration</topic><topic>Hydrologic analysis</topic><topic>Hydrolysates</topic><topic>Hydrolysis</topic><topic>Measurement</topic><topic>Methods</topic><topic>Multiple pH-point titration</topic><topic>Primary sludge</topic><topic>Primary sludge hydrolysis</topic><topic>Purification</topic><topic>Settlers</topic><topic>Sewage</topic><topic>Sludge</topic><topic>Titration</topic><topic>Volatile fatty acids</topic><topic>Volumetric analysis</topic><topic>Waste water</topic><topic>Wastewater</topic><topic>Wastewater treatment</topic><topic>Water treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sandstrom, D.</creatorcontrib><creatorcontrib>Hey, T.</creatorcontrib><creatorcontrib>Ibrahim, V.</creatorcontrib><collection>Sabinet:Open Access</collection><collection>Sabinet Open Access Journal Collection</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Earth, Atmospheric &amp; Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Middle East &amp; Africa Database</collection><collection>ProQuest Central</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 3: Aquatic Pollution &amp; Environmental Quality</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>ProQuest Research Library</collection><collection>Science Database</collection><collection>ProQuest Biological Science Journals</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric &amp; Aquatic Science Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Environment Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Water S. A.</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sandstrom, D.</au><au>Hey, T.</au><au>Ibrahim, V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluating 5 and 8 pH-point titrations for measuring VFA in full-scale primary sludge hydrolysate</atitle><jtitle>Water S. A.</jtitle><date>2013-01-01</date><risdate>2013</risdate><volume>39</volume><issue>1</issue><spage>17</spage><epage>22</epage><pages>17-22</pages><issn>0378-4738</issn><eissn>0378-4738</eissn><abstract>An evaluation of 5 and 8 pH-point titrimetric methods for determining volatile fatty acids (VFAs) was conducted, and the results were compared for tap water and primary treated wastewater at the laboratory scale. These techniques were then applied to full-scale primary sludge hydrolysate, and the results were compared with those obtained via gas chromatography. The comparison showed that the VFA concentrations measured with the two titration methods were higher than those obtained via gas chromatography, differing by 9 and 13 mg COD.ℓ-1 for the hydrolysate and by 5 and 6 mg COD.ℓ-1 for the ordinary primary settler effluent. No improvement in the accuracy of VFA concentration measurement was obtained from applying the 8 pH-point titration method instead of the 5 point method. The 5 pH-point method was successfully applied to determine VFA in full-scale primary sludge hydrolysate and was shown to be equally efficient to the methods that are routinely-used for this purpose.</abstract><cop>Gezina</cop><pub>Water Research Commission (WRC)</pub><doi>10.4314/wsa.v39i1.3</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0378-4738
ispartof Water S. A., 2013-01, Vol.39 (1), p.17-22
issn 0378-4738
0378-4738
language eng
recordid cdi_proquest_miscellaneous_1372060640
source Access via ProQuest (Open Access); Free Full-Text Journals in Chemistry
subjects Acidity
Analysis
Chromatography
Contamination
Drinking water
Effluents
Fatty acids
Full-scale
Gas chromatography
Hydrogen-ion concentration
Hydrologic analysis
Hydrolysates
Hydrolysis
Measurement
Methods
Multiple pH-point titration
Primary sludge
Primary sludge hydrolysis
Purification
Settlers
Sewage
Sludge
Titration
Volatile fatty acids
Volumetric analysis
Waste water
Wastewater
Wastewater treatment
Water treatment
title Evaluating 5 and 8 pH-point titrations for measuring VFA in full-scale primary sludge hydrolysate
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-01T13%3A22%3A28IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Evaluating%205%20and%208%20pH-point%20titrations%20for%20measuring%20VFA%20in%20full-scale%20primary%20sludge%20hydrolysate&rft.jtitle=Water%20S.%20A.&rft.au=Sandstrom,%20D.&rft.date=2013-01-01&rft.volume=39&rft.issue=1&rft.spage=17&rft.epage=22&rft.pages=17-22&rft.issn=0378-4738&rft.eissn=0378-4738&rft_id=info:doi/10.4314/wsa.v39i1.3&rft_dat=%3Cgale_proqu%3EA330251726%3C/gale_proqu%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c499t-755999ba407e753c62be07d787e267f2dca2fa85499de8eb8b589897294cea8c3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1366370972&rft_id=info:pmid/&rft_galeid=A330251726&rft_sabinet_id=10520/EJC131264&rfr_iscdi=true