Treatability of kraft pulp bleaching wastewater by biochemical and photocatalytic oxidation
In this study the biological treatability and TiO sub(2) photocatalyzed oxidation characteristics of sulfate pulp bleaching effluents were investigated. The original wastes had a low biodegradability as determined by BOD sub(5)/COD ratios. Biological treatment was conducted in a batch activated slud...
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| Veröffentlicht in: | Water science and technology 1999, Vol.40 (1), p.281-288 |
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| creator | BALCIOGLU, I. A CECEN, F |
| description | In this study the biological treatability and TiO sub(2) photocatalyzed oxidation characteristics of sulfate pulp bleaching effluents were investigated. The original wastes had a low biodegradability as determined by BOD sub(5)/COD ratios. Biological treatment was conducted in a batch activated sludge reactor. The nonbiodegradable fraction amounted to 60% of the initial COD and compounds specific to these wastes were not removed during biotreatment. In order to enhance the biodegradability of these wastes, mixed raw effluent, C/E-H stage effluent, D/E-D stage effluent and biologically pretreated wastes were subjected to TiO sub(2) photocatalyzed oxidation. Photocatalytic oxidation led to an increase in the BOD sub(5)/COD ratio of D/E-H stage raw and biologically treated wastewater, while chloride formation was observed in both cases in a five-hour reaction period in the presence of 1g l super(-1) TiO sub(2) and 15x10 super(-3) M H sub(2)O sub(2) at pH=6.5. The specific absorption values (A sub(272nm)/COD sub(s), A sub(254nm)/COD sub(s), A sub(346nm)/COD sub(s), A sub(436nm)/COD sub(s)) exhibited parallel decreases during photocatalytic oxidation which indicate that oxidation reactions were nonspecific with respect to the organics present in these wastes. As a conclusion it can be suggested that biological treatment should be placed before the photocatalytic oxidation method. Even in this scheme, the application of photocatalytic oxidation could only then be favored when the COD and chloride concentrations in the wastewater were below certain values or when wastewater was diluted. |
| doi_str_mv | 10.1016/S0273-1223(99)00396-0 |
| format | Article |
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A ; CECEN, F</creator><contributor>Tasli, R (eds) ; Orhon, D ; Tilche, A ; Di Pinto, AC</contributor><creatorcontrib>BALCIOGLU, I. A ; CECEN, F ; Tasli, R (eds) ; Orhon, D ; Tilche, A ; Di Pinto, AC</creatorcontrib><description>In this study the biological treatability and TiO sub(2) photocatalyzed oxidation characteristics of sulfate pulp bleaching effluents were investigated. The original wastes had a low biodegradability as determined by BOD sub(5)/COD ratios. Biological treatment was conducted in a batch activated sludge reactor. The nonbiodegradable fraction amounted to 60% of the initial COD and compounds specific to these wastes were not removed during biotreatment. In order to enhance the biodegradability of these wastes, mixed raw effluent, C/E-H stage effluent, D/E-D stage effluent and biologically pretreated wastes were subjected to TiO sub(2) photocatalyzed oxidation. Photocatalytic oxidation led to an increase in the BOD sub(5)/COD ratio of D/E-H stage raw and biologically treated wastewater, while chloride formation was observed in both cases in a five-hour reaction period in the presence of 1g l super(-1) TiO sub(2) and 15x10 super(-3) M H sub(2)O sub(2) at pH=6.5. The specific absorption values (A sub(272nm)/COD sub(s), A sub(254nm)/COD sub(s), A sub(346nm)/COD sub(s), A sub(436nm)/COD sub(s)) exhibited parallel decreases during photocatalytic oxidation which indicate that oxidation reactions were nonspecific with respect to the organics present in these wastes. As a conclusion it can be suggested that biological treatment should be placed before the photocatalytic oxidation method. Even in this scheme, the application of photocatalytic oxidation could only then be favored when the COD and chloride concentrations in the wastewater were below certain values or when wastewater was diluted.</description><identifier>ISSN: 0273-1223</identifier><identifier>ISBN: 9780080434117</identifier><identifier>ISBN: 0080434118</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.1016/S0273-1223(99)00396-0</identifier><identifier>CODEN: WSTED4</identifier><language>eng</language><publisher>Oxford: Pergamon Press</publisher><subject>Activated sludge ; Applied sciences ; Biodegradability ; Biodegradation ; Biological and medical sciences ; Biological treatment ; Biological treatment of waters ; Biotechnology ; Bleaching ; Bleaching wastes ; Chemical oxygen demand ; Chlorides ; Dilution ; Effluents ; Environment and pollution ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Hydrogen peroxide ; Industrial applications and implications. Economical aspects ; Industrial wastewaters ; Kraft pulp ; Oxidation ; Photocatalysis ; Photooxidation ; Pollution ; Pulp ; Pulp wastes ; Ratios ; Sludge ; Sulfate pulp ; Sulfates ; Titanium dioxide ; Wastes ; Wastewater ; Wastewater dilution ; Wastewater treatment ; Wastewaters ; Water purification ; Water treatment and pollution</subject><ispartof>Water science and technology, 1999, Vol.40 (1), p.281-288</ispartof><rights>1999 INIST-CNRS</rights><rights>Copyright IWA Publishing Jul 1999</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c347t-76820fd4b2ce643123db5358825357fd31864ad56467ba1e9dffb6c8f6c269a13</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,776,780,785,786,4010,4036,4037,27900,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1828446$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><contributor>Tasli, R (eds)</contributor><contributor>Orhon, D</contributor><contributor>Tilche, A</contributor><contributor>Di Pinto, AC</contributor><creatorcontrib>BALCIOGLU, I. A</creatorcontrib><creatorcontrib>CECEN, F</creatorcontrib><title>Treatability of kraft pulp bleaching wastewater by biochemical and photocatalytic oxidation</title><title>Water science and technology</title><description>In this study the biological treatability and TiO sub(2) photocatalyzed oxidation characteristics of sulfate pulp bleaching effluents were investigated. The original wastes had a low biodegradability as determined by BOD sub(5)/COD ratios. Biological treatment was conducted in a batch activated sludge reactor. The nonbiodegradable fraction amounted to 60% of the initial COD and compounds specific to these wastes were not removed during biotreatment. In order to enhance the biodegradability of these wastes, mixed raw effluent, C/E-H stage effluent, D/E-D stage effluent and biologically pretreated wastes were subjected to TiO sub(2) photocatalyzed oxidation. Photocatalytic oxidation led to an increase in the BOD sub(5)/COD ratio of D/E-H stage raw and biologically treated wastewater, while chloride formation was observed in both cases in a five-hour reaction period in the presence of 1g l super(-1) TiO sub(2) and 15x10 super(-3) M H sub(2)O sub(2) at pH=6.5. The specific absorption values (A sub(272nm)/COD sub(s), A sub(254nm)/COD sub(s), A sub(346nm)/COD sub(s), A sub(436nm)/COD sub(s)) exhibited parallel decreases during photocatalytic oxidation which indicate that oxidation reactions were nonspecific with respect to the organics present in these wastes. As a conclusion it can be suggested that biological treatment should be placed before the photocatalytic oxidation method. Even in this scheme, the application of photocatalytic oxidation could only then be favored when the COD and chloride concentrations in the wastewater were below certain values or when wastewater was diluted.</description><subject>Activated sludge</subject><subject>Applied sciences</subject><subject>Biodegradability</subject><subject>Biodegradation</subject><subject>Biological and medical sciences</subject><subject>Biological treatment</subject><subject>Biological treatment of waters</subject><subject>Biotechnology</subject><subject>Bleaching</subject><subject>Bleaching wastes</subject><subject>Chemical oxygen demand</subject><subject>Chlorides</subject><subject>Dilution</subject><subject>Effluents</subject><subject>Environment and pollution</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hydrogen peroxide</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Industrial wastewaters</subject><subject>Kraft pulp</subject><subject>Oxidation</subject><subject>Photocatalysis</subject><subject>Photooxidation</subject><subject>Pollution</subject><subject>Pulp</subject><subject>Pulp wastes</subject><subject>Ratios</subject><subject>Sludge</subject><subject>Sulfate pulp</subject><subject>Sulfates</subject><subject>Titanium dioxide</subject><subject>Wastes</subject><subject>Wastewater</subject><subject>Wastewater dilution</subject><subject>Wastewater treatment</subject><subject>Wastewaters</subject><subject>Water purification</subject><subject>Water treatment and pollution</subject><issn>0273-1223</issn><issn>1996-9732</issn><isbn>9780080434117</isbn><isbn>0080434118</isbn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNqNkcuLFDEQh4MPcFz3TxACiuihtfLoPI6y-IIFD64nD6E6nThZezptkmGd_96e3UXBi3upqsNXP4r6CHnK4DUDpt58Aa5FxzgXL619BSCs6uAe2TC7DlYLfp-cWm0ADEghGdMPyObPyiPyuNZLANBCwoZ8uygBGw5pSu1Ac6Q_CsZGl_200GEK6Ldp_k6vsLZwhS0UOhzokLLfhl3yOFGcR7psc8t-TZkOLXmaf6URW8rzE_Iw4lTD6W0_IV_fv7s4-9idf_7w6ezteeeF1K3TynCIoxy4D0oKxsU49KI3hq9Vx1EwoySOvZJKD8iCHWMclDdRea4sMnFCXtzkLiX_3Ifa3C5VH6YJ55D31XFrhQZl7wCuT-ml_i_I9JrWS7gDKBlwy1fw2T_gZd6XeX2LY1YKLpVixwP7G8qXXGsJ0S0l7bAcHAN3dO-u3bujSGetu3bvjmc8v03HulqJBWef6t9lw42USvwG6GWraw</recordid><startdate>1999</startdate><enddate>1999</enddate><creator>BALCIOGLU, I. A</creator><creator>CECEN, F</creator><general>Pergamon Press</general><general>IWA Publishing</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>L6V</scope><scope>M0S</scope><scope>M1P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>7TV</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>8BQ</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>1999</creationdate><title>Treatability of kraft pulp bleaching wastewater by biochemical and photocatalytic oxidation</title><author>BALCIOGLU, I. A ; CECEN, F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c347t-76820fd4b2ce643123db5358825357fd31864ad56467ba1e9dffb6c8f6c269a13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Activated sludge</topic><topic>Applied sciences</topic><topic>Biodegradability</topic><topic>Biodegradation</topic><topic>Biological and medical sciences</topic><topic>Biological treatment</topic><topic>Biological treatment of waters</topic><topic>Biotechnology</topic><topic>Bleaching</topic><topic>Bleaching wastes</topic><topic>Chemical oxygen demand</topic><topic>Chlorides</topic><topic>Dilution</topic><topic>Effluents</topic><topic>Environment and pollution</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Hydrogen peroxide</topic><topic>Industrial applications and implications. Economical aspects</topic><topic>Industrial wastewaters</topic><topic>Kraft pulp</topic><topic>Oxidation</topic><topic>Photocatalysis</topic><topic>Photooxidation</topic><topic>Pollution</topic><topic>Pulp</topic><topic>Pulp wastes</topic><topic>Ratios</topic><topic>Sludge</topic><topic>Sulfate pulp</topic><topic>Sulfates</topic><topic>Titanium dioxide</topic><topic>Wastes</topic><topic>Wastewater</topic><topic>Wastewater dilution</topic><topic>Wastewater treatment</topic><topic>Wastewaters</topic><topic>Water purification</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>BALCIOGLU, I. 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A</au><au>CECEN, F</au><au>Tasli, R (eds)</au><au>Orhon, D</au><au>Tilche, A</au><au>Di Pinto, AC</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Treatability of kraft pulp bleaching wastewater by biochemical and photocatalytic oxidation</atitle><jtitle>Water science and technology</jtitle><date>1999</date><risdate>1999</risdate><volume>40</volume><issue>1</issue><spage>281</spage><epage>288</epage><pages>281-288</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><isbn>9780080434117</isbn><isbn>0080434118</isbn><coden>WSTED4</coden><abstract>In this study the biological treatability and TiO sub(2) photocatalyzed oxidation characteristics of sulfate pulp bleaching effluents were investigated. The original wastes had a low biodegradability as determined by BOD sub(5)/COD ratios. Biological treatment was conducted in a batch activated sludge reactor. The nonbiodegradable fraction amounted to 60% of the initial COD and compounds specific to these wastes were not removed during biotreatment. In order to enhance the biodegradability of these wastes, mixed raw effluent, C/E-H stage effluent, D/E-D stage effluent and biologically pretreated wastes were subjected to TiO sub(2) photocatalyzed oxidation. Photocatalytic oxidation led to an increase in the BOD sub(5)/COD ratio of D/E-H stage raw and biologically treated wastewater, while chloride formation was observed in both cases in a five-hour reaction period in the presence of 1g l super(-1) TiO sub(2) and 15x10 super(-3) M H sub(2)O sub(2) at pH=6.5. The specific absorption values (A sub(272nm)/COD sub(s), A sub(254nm)/COD sub(s), A sub(346nm)/COD sub(s), A sub(436nm)/COD sub(s)) exhibited parallel decreases during photocatalytic oxidation which indicate that oxidation reactions were nonspecific with respect to the organics present in these wastes. As a conclusion it can be suggested that biological treatment should be placed before the photocatalytic oxidation method. Even in this scheme, the application of photocatalytic oxidation could only then be favored when the COD and chloride concentrations in the wastewater were below certain values or when wastewater was diluted.</abstract><cop>Oxford</cop><pub>Pergamon Press</pub><doi>10.1016/S0273-1223(99)00396-0</doi><tpages>8</tpages></addata></record> |
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| ispartof | Water science and technology, 1999, Vol.40 (1), p.281-288 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Activated sludge Applied sciences Biodegradability Biodegradation Biological and medical sciences Biological treatment Biological treatment of waters Biotechnology Bleaching Bleaching wastes Chemical oxygen demand Chlorides Dilution Effluents Environment and pollution Exact sciences and technology Fundamental and applied biological sciences. Psychology Hydrogen peroxide Industrial applications and implications. Economical aspects Industrial wastewaters Kraft pulp Oxidation Photocatalysis Photooxidation Pollution Pulp Pulp wastes Ratios Sludge Sulfate pulp Sulfates Titanium dioxide Wastes Wastewater Wastewater dilution Wastewater treatment Wastewaters Water purification Water treatment and pollution |
| title | Treatability of kraft pulp bleaching wastewater by biochemical and photocatalytic oxidation |
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