Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements
Rheological parameters being of great importance for sludge process management, they are increasingly studied. However, experimental procedures may strongly impact their determination. Sample volume, measuring device depth and roughness but also mechanical history, have to be well-controlled to ensu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2019-11-01
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| Series: | Applied Rheology |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/arh-2019-0011 |
| _version_ | 1818736691372883968 |
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| author | Thiène Oumar Dieudé-Fauvel Emilie Baudez Jean-Christophe |
| author_facet | Thiène Oumar Dieudé-Fauvel Emilie Baudez Jean-Christophe |
| author_sort | Thiène Oumar |
| collection | DOAJ |
| description | Rheological parameters being of great importance for sludge process management, they are increasingly studied. However, experimental procedures may strongly impact their determination. Sample volume, measuring device depth and roughness but also mechanical history, have to be well-controlled to ensure reproducible results. Indeed, even if shear history can be erased with a sufficient preshear for diluted sludge, this paper clearly established that no steady state can be achieved for concentrated sludge. The longer the shear history, the lower the rheological characteristics: Reproducible results are hardly obtained. |
| first_indexed | 2024-12-18T00:41:10Z |
| format | Article |
| id | doaj.art-a812120b10b94aee9c421fc0d3c46491 |
| institution | Directory Open Access Journal |
| issn | 1617-8106 |
| language | English |
| last_indexed | 2024-12-18T00:41:10Z |
| publishDate | 2019-11-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Applied Rheology |
| spelling | doaj.art-a812120b10b94aee9c421fc0d3c464912022-12-21T21:26:52ZengDe GruyterApplied Rheology1617-81062019-11-0129111712910.1515/arh-2019-0011arh-2019-0011Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurementsThiène Oumar0Dieudé-Fauvel Emilie1Baudez Jean-Christophe2Irstea, UR TSCF, Domaine des Palaquins, F-03150 Montoldre, FranceIrstea, UR TSCF, Domaine des Palaquins, F-03150 Montoldre, FranceIrstea, UR TSCF, Domaine des Palaquins, F-03150 Montoldre, France; IMT Lille Douai, 941 rue Charles Bourseul, CS 10838, F-59508 Douai Cedex, FranceRheological parameters being of great importance for sludge process management, they are increasingly studied. However, experimental procedures may strongly impact their determination. Sample volume, measuring device depth and roughness but also mechanical history, have to be well-controlled to ensure reproducible results. Indeed, even if shear history can be erased with a sufficient preshear for diluted sludge, this paper clearly established that no steady state can be achieved for concentrated sludge. The longer the shear history, the lower the rheological characteristics: Reproducible results are hardly obtained.https://doi.org/10.1515/arh-2019-0011sludgerheologyslippageshear historyexperimental procedure47.57.qk83.85.vb83.60.bc83.60.df83.60.la |
| spellingShingle | Thiène Oumar Dieudé-Fauvel Emilie Baudez Jean-Christophe Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements Applied Rheology sludge rheology slippage shear history experimental procedure 47.57.qk 83.85.vb 83.60.bc 83.60.df 83.60.la |
| title | Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements |
| title_full | Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements |
| title_fullStr | Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements |
| title_full_unstemmed | Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements |
| title_short | Experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements |
| title_sort | experimental difficulties often encountered with sludge rheological properties determination and advices to perform reliable measurements |
| topic | sludge rheology slippage shear history experimental procedure 47.57.qk 83.85.vb 83.60.bc 83.60.df 83.60.la |
| url | https://doi.org/10.1515/arh-2019-0011 |
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