ACTIVATED CARBON ADDITION TO ACTIVATED SLUDGE IN THE TREATMENT OF KRAFT PULP BLEACHING WASTES
This study examines the effect of powdered activated carbon (PAC) addition to activated sludge in the treatment of pulp bleaching effluents which contain a large amount of nonbiodegradable matter. The effect of PAC addition has been studied in both batch and continuous-flow reactors. Isotherms were...
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| Veröffentlicht in: | Water science and technology 1994-01, Vol.30 (3), p.183-192 |
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| creator | Cecen, F |
| description | This study examines the effect of powdered activated carbon (PAC) addition to activated sludge in the treatment of pulp bleaching effluents which contain a large amount of nonbiodegradable matter. The effect of PAC addition has been studied in both batch and continuous-flow reactors. Isotherms were developed for PAC and biomass adsorption. It was shown that substrate removal by air stripping and biosorption was negligible. The change in substrate concentration occurred mainly by biodegradation. The biological removal data obtained in batch and continuous-flow reactors were fitted to kinetic models. Both batch and continuous-flow experiments revealed that there remained a high amount of nonbiodegradable substrate as expressed by residual COD and Color436. Carbon addition to activated sludge resulted in a high decrease in substrate concentration, particularly for color. However, the results indicated that there was no noticable biological enhancement with PAC addition. The combined PAC and activated sludge process seemed to be a combination of adsorption and biodegradation. |
| doi_str_mv | 10.2166/wst.1994.0096 |
| format | Article |
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The effect of PAC addition has been studied in both batch and continuous-flow reactors. Isotherms were developed for PAC and biomass adsorption. It was shown that substrate removal by air stripping and biosorption was negligible. The change in substrate concentration occurred mainly by biodegradation. The biological removal data obtained in batch and continuous-flow reactors were fitted to kinetic models. Both batch and continuous-flow experiments revealed that there remained a high amount of nonbiodegradable substrate as expressed by residual COD and Color436. Carbon addition to activated sludge resulted in a high decrease in substrate concentration, particularly for color. However, the results indicated that there was no noticable biological enhancement with PAC addition. The combined PAC and activated sludge process seemed to be a combination of adsorption and biodegradation.</description><identifier>ISSN: 0273-1223</identifier><identifier>ISBN: 008042550X</identifier><identifier>ISBN: 9780080425504</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.1994.0096</identifier><language>eng</language><publisher>London: IWA Publishing</publisher><subject>Activated carbon ; Activated sludge ; Activated sludge process ; Adsorption ; Biodegradation ; Biological effects ; Biosorption ; Bleaching ; Bleaching wastes ; Carbon ; Colour ; Effluents ; Emissions control ; Kraft pulp ; Pulp ; Pulp wastes ; Reactors ; Removal ; Sludge ; Substrates ; Water treatment plants</subject><ispartof>Water science and technology, 1994-01, Vol.30 (3), p.183-192</ispartof><rights>Copyright IWA Publishing Aug 1994</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c418t-b4082ff5db137698248ca3e8188079a534961fa234bd4340d84c79ddfb8250573</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>310,311,315,781,785,790,791,23935,23936,25145,27929,27930</link.rule.ids></links><search><contributor>Grabow, WOK</contributor><contributor>Chin, KK</contributor><contributor>Ohgaki, S</contributor><contributor>Izod, EJ</contributor><contributor>Ballay, D</contributor><contributor>Bhamidimarri, R</contributor><contributor>Milburn, A</contributor><contributor>Dahlberg, AG</contributor><contributor>Zotter, K</contributor><contributor>Nagle, PT (eds)</contributor><contributor>Asano, T</contributor><creatorcontrib>Cecen, F</creatorcontrib><title>ACTIVATED CARBON ADDITION TO ACTIVATED SLUDGE IN THE TREATMENT OF KRAFT PULP BLEACHING WASTES</title><title>Water science and technology</title><description>This study examines the effect of powdered activated carbon (PAC) addition to activated sludge in the treatment of pulp bleaching effluents which contain a large amount of nonbiodegradable matter. The effect of PAC addition has been studied in both batch and continuous-flow reactors. Isotherms were developed for PAC and biomass adsorption. It was shown that substrate removal by air stripping and biosorption was negligible. The change in substrate concentration occurred mainly by biodegradation. The biological removal data obtained in batch and continuous-flow reactors were fitted to kinetic models. Both batch and continuous-flow experiments revealed that there remained a high amount of nonbiodegradable substrate as expressed by residual COD and Color436. Carbon addition to activated sludge resulted in a high decrease in substrate concentration, particularly for color. However, the results indicated that there was no noticable biological enhancement with PAC addition. The combined PAC and activated sludge process seemed to be a combination of adsorption and biodegradation.</description><subject>Activated carbon</subject><subject>Activated sludge</subject><subject>Activated sludge process</subject><subject>Adsorption</subject><subject>Biodegradation</subject><subject>Biological effects</subject><subject>Biosorption</subject><subject>Bleaching</subject><subject>Bleaching wastes</subject><subject>Carbon</subject><subject>Colour</subject><subject>Effluents</subject><subject>Emissions control</subject><subject>Kraft pulp</subject><subject>Pulp</subject><subject>Pulp wastes</subject><subject>Reactors</subject><subject>Removal</subject><subject>Sludge</subject><subject>Substrates</subject><subject>Water treatment 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CARBON ADDITION TO ACTIVATED SLUDGE IN THE TREATMENT OF KRAFT PULP BLEACHING WASTES</title><author>Cecen, F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c418t-b4082ff5db137698248ca3e8188079a534961fa234bd4340d84c79ddfb8250573</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Activated carbon</topic><topic>Activated sludge</topic><topic>Activated sludge process</topic><topic>Adsorption</topic><topic>Biodegradation</topic><topic>Biological effects</topic><topic>Biosorption</topic><topic>Bleaching</topic><topic>Bleaching wastes</topic><topic>Carbon</topic><topic>Colour</topic><topic>Effluents</topic><topic>Emissions control</topic><topic>Kraft pulp</topic><topic>Pulp</topic><topic>Pulp wastes</topic><topic>Reactors</topic><topic>Removal</topic><topic>Sludge</topic><topic>Substrates</topic><topic>Water treatment 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Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Water science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cecen, F</au><au>Grabow, WOK</au><au>Chin, KK</au><au>Ohgaki, S</au><au>Izod, EJ</au><au>Ballay, D</au><au>Bhamidimarri, R</au><au>Milburn, A</au><au>Dahlberg, AG</au><au>Zotter, K</au><au>Nagle, PT (eds)</au><au>Asano, T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>ACTIVATED CARBON ADDITION TO ACTIVATED SLUDGE IN THE TREATMENT OF KRAFT PULP BLEACHING WASTES</atitle><jtitle>Water science and technology</jtitle><date>1994-01-01</date><risdate>1994</risdate><volume>30</volume><issue>3</issue><spage>183</spage><epage>192</epage><pages>183-192</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><isbn>008042550X</isbn><isbn>9780080425504</isbn><abstract>This study examines the effect of powdered activated carbon (PAC) addition to activated sludge in the treatment of pulp bleaching effluents which contain a large amount of nonbiodegradable matter. The effect of PAC addition has been studied in both batch and continuous-flow reactors. Isotherms were developed for PAC and biomass adsorption. It was shown that substrate removal by air stripping and biosorption was negligible. The change in substrate concentration occurred mainly by biodegradation. The biological removal data obtained in batch and continuous-flow reactors were fitted to kinetic models. Both batch and continuous-flow experiments revealed that there remained a high amount of nonbiodegradable substrate as expressed by residual COD and Color436. Carbon addition to activated sludge resulted in a high decrease in substrate concentration, particularly for color. However, the results indicated that there was no noticable biological enhancement with PAC addition. The combined PAC and activated sludge process seemed to be a combination of adsorption and biodegradation.</abstract><cop>London</cop><pub>IWA Publishing</pub><doi>10.2166/wst.1994.0096</doi><tpages>10</tpages></addata></record> |
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| ispartof | Water science and technology, 1994-01, Vol.30 (3), p.183-192 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Activated carbon Activated sludge Activated sludge process Adsorption Biodegradation Biological effects Biosorption Bleaching Bleaching wastes Carbon Colour Effluents Emissions control Kraft pulp Pulp Pulp wastes Reactors Removal Sludge Substrates Water treatment plants |
| title | ACTIVATED CARBON ADDITION TO ACTIVATED SLUDGE IN THE TREATMENT OF KRAFT PULP BLEACHING WASTES |
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