Effect of Aluminum (Al3+) on Granulation in Upflow Anaerobic Sludge Blanket Reactor Treating Low-Strength Synthetic Wastewater
The effect of aluminum on agglomeration in the sludge bed and chemical oxygen demand (COD) removal efficiency in laboratory-scale upflow anaerobic sludge blanket (UASB) reactors treating low-strength synthetic wastewater (approximately 665 to 738 mg/L of COD) was investigated. Continuous application...
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| Veröffentlicht in: | Water environment research 2010-08, Vol.82 (8), p.715-724 |
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| creator | Sondhi, Akash Guha, Saumyen Harendranath, C. S. Singh, Anju |
| description | The effect of aluminum on agglomeration in the sludge bed and chemical oxygen demand (COD) removal efficiency in laboratory-scale upflow anaerobic sludge blanket (UASB) reactors treating low-strength synthetic wastewater (approximately 665 to 738 mg/L of COD) was investigated. Continuous application of aluminum chloride (200 mg/L) caused poor COD removal, less sludge density, and adversely affected agglomeration in the sludge bed. An adverse effect on granulation also was observed when 300 mg/L aluminum chloride was added only during the startup, and the effect continued even after it was discontinued. A lower concentration of aluminum chloride (50 mg/L) added for 30 days after the reactors reached steady-state did not affect the COD removal efficiency, but adversely affected the growth of agglomerates and caused temporary degeneration of existing agglomerates. The adverse effect of aluminum appeared to stem from the precipitation of aluminum hydroxide on the surfaces of agglomerates. The effect of aluminum on agglomeration was shown to be a function of influent strength. |
| doi_str_mv | 10.2175/106143010X12609736966603 |
| format | Article |
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S. ; Singh, Anju</creator><creatorcontrib>Sondhi, Akash ; Guha, Saumyen ; Harendranath, C. S. ; Singh, Anju</creatorcontrib><description>The effect of aluminum on agglomeration in the sludge bed and chemical oxygen demand (COD) removal efficiency in laboratory-scale upflow anaerobic sludge blanket (UASB) reactors treating low-strength synthetic wastewater (approximately 665 to 738 mg/L of COD) was investigated. Continuous application of aluminum chloride (200 mg/L) caused poor COD removal, less sludge density, and adversely affected agglomeration in the sludge bed. An adverse effect on granulation also was observed when 300 mg/L aluminum chloride was added only during the startup, and the effect continued even after it was discontinued. A lower concentration of aluminum chloride (50 mg/L) added for 30 days after the reactors reached steady-state did not affect the COD removal efficiency, but adversely affected the growth of agglomerates and caused temporary degeneration of existing agglomerates. The adverse effect of aluminum appeared to stem from the precipitation of aluminum hydroxide on the surfaces of agglomerates. The effect of aluminum on agglomeration was shown to be a function of influent strength.</description><identifier>ISSN: 1061-4303</identifier><identifier>EISSN: 1554-7531</identifier><identifier>DOI: 10.2175/106143010X12609736966603</identifier><identifier>PMID: 20853750</identifier><language>eng</language><publisher>Water Environment Federation 601 Wythe Street Alexandria, VA 22314‐1994 U.S.A: Water Environment Federation</publisher><subject>Additives ; Agglomerates ; Aluminum ; aluminum additive ; Aluminum Compounds - chemistry ; Anaerobiosis ; Binding sites ; Bioreactors ; Chemical oxygen demand ; Chlorides ; Chlorides - chemistry ; Efficiency ; environmental scanning electron microscopy ; Flocculation ; granulation ; image analysis ; Methane ; Sewage sludge ; Sludge ; Sludge treatment ; Start up firms ; upflow anaerobic sludge blanket reactor ; Waste Management - methods ; Wastewater ; Water treatment</subject><ispartof>Water environment research, 2010-08, Vol.82 (8), p.715-724</ispartof><rights>2010 WATER ENVIRONMENT FEDERATION (WEF)</rights><rights>2010 Water Environment Federation</rights><rights>Copyright Water Environment Federation Aug 2010</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4495-2be8b71cff2d926ce3e52898fdf7241518f669c63950c19b2d6c74e192731d473</citedby><cites>FETCH-LOGICAL-c4495-2be8b71cff2d926ce3e52898fdf7241518f669c63950c19b2d6c74e192731d473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/27870367$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/27870367$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,1417,27924,27925,45574,45575,58017,58250</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20853750$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sondhi, Akash</creatorcontrib><creatorcontrib>Guha, Saumyen</creatorcontrib><creatorcontrib>Harendranath, C. S.</creatorcontrib><creatorcontrib>Singh, Anju</creatorcontrib><title>Effect of Aluminum (Al3+) on Granulation in Upflow Anaerobic Sludge Blanket Reactor Treating Low-Strength Synthetic Wastewater</title><title>Water environment research</title><addtitle>Water Environ Res</addtitle><description>The effect of aluminum on agglomeration in the sludge bed and chemical oxygen demand (COD) removal efficiency in laboratory-scale upflow anaerobic sludge blanket (UASB) reactors treating low-strength synthetic wastewater (approximately 665 to 738 mg/L of COD) was investigated. Continuous application of aluminum chloride (200 mg/L) caused poor COD removal, less sludge density, and adversely affected agglomeration in the sludge bed. An adverse effect on granulation also was observed when 300 mg/L aluminum chloride was added only during the startup, and the effect continued even after it was discontinued. A lower concentration of aluminum chloride (50 mg/L) added for 30 days after the reactors reached steady-state did not affect the COD removal efficiency, but adversely affected the growth of agglomerates and caused temporary degeneration of existing agglomerates. The adverse effect of aluminum appeared to stem from the precipitation of aluminum hydroxide on the surfaces of agglomerates. The effect of aluminum on agglomeration was shown to be a function of influent strength.</description><subject>Additives</subject><subject>Agglomerates</subject><subject>Aluminum</subject><subject>aluminum additive</subject><subject>Aluminum Compounds - chemistry</subject><subject>Anaerobiosis</subject><subject>Binding sites</subject><subject>Bioreactors</subject><subject>Chemical oxygen demand</subject><subject>Chlorides</subject><subject>Chlorides - chemistry</subject><subject>Efficiency</subject><subject>environmental scanning electron microscopy</subject><subject>Flocculation</subject><subject>granulation</subject><subject>image analysis</subject><subject>Methane</subject><subject>Sewage sludge</subject><subject>Sludge</subject><subject>Sludge treatment</subject><subject>Start up firms</subject><subject>upflow anaerobic sludge blanket reactor</subject><subject>Waste Management - methods</subject><subject>Wastewater</subject><subject>Water treatment</subject><issn>1061-4303</issn><issn>1554-7531</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNkUuLFDEURgtRnIf-BCW4UZHSvB8LF-3QjkKDMD3DuCuqUjc91VYnPUmKpjfz2430qCCIrnIX53zc3K-qEMFvKVHiHcGScIYJ_kqoxEYxaaSUmD2ojokQvFaCkYdlLlhdOHZUnaS0xphQivnj6ohiLZgS-Li6mzsHNqPg0GycNoOfNujVbGRvXqPg0Xls_TS2eSjz4NHV1o1hh2a-hRi6waLlOPUrQB_G1n-DjC6gtTlEdBmhOH6FFmFXL3MEv8o3aLn3-QZy0a7blGHXZohPqkeuHRM8vX9Pq6uP88uzT_Xiy_nns9mitpwbUdMOdKeIdY72hkoLDATVRrveKcqJINpJaaxkRmBLTEd7aRUHYqhipOeKnVYvD7nbGG4nSLnZDMnCWBaHMKXGYMq4KEf8J6mEIBJrxgr54g9yHaboyzcaxbVmQnNeIH2AbAwpRXDNNg6bNu4bgpsfXTZ_67Koz-_zp24D_S_xZ3kFeH8AdsMI-_8Obq7nF1gRUfxnB3-dSmu_85VWmEnFvgOVGLL2</recordid><startdate>201008</startdate><enddate>201008</enddate><creator>Sondhi, Akash</creator><creator>Guha, Saumyen</creator><creator>Harendranath, C. 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S.</au><au>Singh, Anju</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Aluminum (Al3+) on Granulation in Upflow Anaerobic Sludge Blanket Reactor Treating Low-Strength Synthetic Wastewater</atitle><jtitle>Water environment research</jtitle><addtitle>Water Environ Res</addtitle><date>2010-08</date><risdate>2010</risdate><volume>82</volume><issue>8</issue><spage>715</spage><epage>724</epage><pages>715-724</pages><issn>1061-4303</issn><eissn>1554-7531</eissn><abstract>The effect of aluminum on agglomeration in the sludge bed and chemical oxygen demand (COD) removal efficiency in laboratory-scale upflow anaerobic sludge blanket (UASB) reactors treating low-strength synthetic wastewater (approximately 665 to 738 mg/L of COD) was investigated. Continuous application of aluminum chloride (200 mg/L) caused poor COD removal, less sludge density, and adversely affected agglomeration in the sludge bed. An adverse effect on granulation also was observed when 300 mg/L aluminum chloride was added only during the startup, and the effect continued even after it was discontinued. A lower concentration of aluminum chloride (50 mg/L) added for 30 days after the reactors reached steady-state did not affect the COD removal efficiency, but adversely affected the growth of agglomerates and caused temporary degeneration of existing agglomerates. The adverse effect of aluminum appeared to stem from the precipitation of aluminum hydroxide on the surfaces of agglomerates. The effect of aluminum on agglomeration was shown to be a function of influent strength.</abstract><cop>Water Environment Federation 601 Wythe Street Alexandria, VA 22314‐1994 U.S.A</cop><pub>Water Environment Federation</pub><pmid>20853750</pmid><doi>10.2175/106143010X12609736966603</doi><tpages>10</tpages></addata></record> |
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| subjects | Additives Agglomerates Aluminum aluminum additive Aluminum Compounds - chemistry Anaerobiosis Binding sites Bioreactors Chemical oxygen demand Chlorides Chlorides - chemistry Efficiency environmental scanning electron microscopy Flocculation granulation image analysis Methane Sewage sludge Sludge Sludge treatment Start up firms upflow anaerobic sludge blanket reactor Waste Management - methods Wastewater Water treatment |
| title | Effect of Aluminum (Al3+) on Granulation in Upflow Anaerobic Sludge Blanket Reactor Treating Low-Strength Synthetic Wastewater |
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