Continuous Enzymatic Prehydrolysis Treatment of High-Fat Wastewater
A lipolytic fermented solid was produced by solid-state fermentation of Rhizopus microsporus CPQBA 312-07 DRM on a mixture of sugarcane bagasse and sunflower seed meal and used, in a packed-bed bioreactor, to pretreat a high-fat wastewater from a meat and sausage processing factory located in São Jo...
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| Language: | English |
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University of Zagreb Faculty of Food Technology and Biotechnology
2013-01-01
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| Series: | Food Technology and Biotechnology |
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| Online Access: | http://hrcak.srce.hr/file/154075 |
| _version_ | 1797423660258033664 |
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| author | Rodrigo Augusto Franco de Oliveira Zawadzki Marcelo Real Prado David Alexander Mitchell Nadia Krieger |
| author_facet | Rodrigo Augusto Franco de Oliveira Zawadzki Marcelo Real Prado David Alexander Mitchell Nadia Krieger |
| author_sort | Rodrigo Augusto Franco de Oliveira Zawadzki |
| collection | DOAJ |
| description | A lipolytic fermented solid was produced by solid-state fermentation of Rhizopus microsporus CPQBA 312-07 DRM on a mixture of sugarcane bagasse and sunflower seed meal and used, in a packed-bed bioreactor, to pretreat a high-fat wastewater from a meat and sausage processing factory located in São José dos Pinhais, State of Paraná, Brazil. With a hydraulic residence time of 24 h, this pretreatment not only reduced the wastewater’s oil and grease content by up to 96 %, but also increased its 5-day biochemical oxygen demand to chemical oxygen demand (BOD5/COD) ratio. This ratio was only 0.19 in the raw wastewater, indicating poor biodegradability, but increased to 0.55 in the pretreated wastewater, indicating that it had a sufficiently high biodegradability to be sent to a traditional anaerobic digestion or activated sludge process. After 96 days of operation of the packed bed, a microbiological analysis showed that R. microsporus was still present and viable in the fermented solid. Our work shows that a continuous packed-bed bioreactor containing fermented solid produced by R. microsporus has good potential for the treatment of high-fat wastewater. |
| first_indexed | 2024-03-09T07:50:07Z |
| format | Article |
| id | doaj.art-d529b1b2b10f4ac6a14ae469765c2adb |
| institution | Directory Open Access Journal |
| issn | 1330-9862 1334-2606 |
| language | English |
| last_indexed | 2024-03-09T07:50:07Z |
| publishDate | 2013-01-01 |
| publisher | University of Zagreb Faculty of Food Technology and Biotechnology |
| record_format | Article |
| series | Food Technology and Biotechnology |
| spelling | doaj.art-d529b1b2b10f4ac6a14ae469765c2adb2023-12-03T02:07:04ZengUniversity of Zagreb Faculty of Food Technology and BiotechnologyFood Technology and Biotechnology1330-98621334-26062013-01-01512293300Continuous Enzymatic Prehydrolysis Treatment of High-Fat WastewaterRodrigo Augusto Franco de Oliveira Zawadzki0Marcelo Real Prado1David Alexander Mitchell2Nadia Krieger3Department of Chemistry, Federal University of Paraná, Centro Politécnico, P.O. Box 19081, Curitiba 81531-980, Paraná, BrazilDepartment of Chemistry and Biology, Federal Technological University of Paraná, Av. Sete de Setembro, 3165, Curitiba 80230-901, Paraná, BrazilDepartment of Biochemistry and Molecular Biology, Federal University of Paraná, Centro Politécnico, P.O. Box 19046, Curitiba 81531-980, Paraná, BrazilDepartment of Chemistry, Federal University of Paraná, Centro Politécnico, P.O. Box 19081, Curitiba 81531-980, Paraná, BrazilA lipolytic fermented solid was produced by solid-state fermentation of Rhizopus microsporus CPQBA 312-07 DRM on a mixture of sugarcane bagasse and sunflower seed meal and used, in a packed-bed bioreactor, to pretreat a high-fat wastewater from a meat and sausage processing factory located in São José dos Pinhais, State of Paraná, Brazil. With a hydraulic residence time of 24 h, this pretreatment not only reduced the wastewater’s oil and grease content by up to 96 %, but also increased its 5-day biochemical oxygen demand to chemical oxygen demand (BOD5/COD) ratio. This ratio was only 0.19 in the raw wastewater, indicating poor biodegradability, but increased to 0.55 in the pretreated wastewater, indicating that it had a sufficiently high biodegradability to be sent to a traditional anaerobic digestion or activated sludge process. After 96 days of operation of the packed bed, a microbiological analysis showed that R. microsporus was still present and viable in the fermented solid. Our work shows that a continuous packed-bed bioreactor containing fermented solid produced by R. microsporus has good potential for the treatment of high-fat wastewater.http://hrcak.srce.hr/file/154075enzymatic hydrolysislipasesRhizopus microsporushigh-fat wastewaterpacked-bed bioreactor |
| spellingShingle | Rodrigo Augusto Franco de Oliveira Zawadzki Marcelo Real Prado David Alexander Mitchell Nadia Krieger Continuous Enzymatic Prehydrolysis Treatment of High-Fat Wastewater Food Technology and Biotechnology enzymatic hydrolysis lipases Rhizopus microsporus high-fat wastewater packed-bed bioreactor |
| title | Continuous Enzymatic Prehydrolysis Treatment of High-Fat Wastewater |
| title_full | Continuous Enzymatic Prehydrolysis Treatment of High-Fat Wastewater |
| title_fullStr | Continuous Enzymatic Prehydrolysis Treatment of High-Fat Wastewater |
| title_full_unstemmed | Continuous Enzymatic Prehydrolysis Treatment of High-Fat Wastewater |
| title_short | Continuous Enzymatic Prehydrolysis Treatment of High-Fat Wastewater |
| title_sort | continuous enzymatic prehydrolysis treatment of high fat wastewater |
| topic | enzymatic hydrolysis lipases Rhizopus microsporus high-fat wastewater packed-bed bioreactor |
| url | http://hrcak.srce.hr/file/154075 |
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