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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhang, Xueyu Chen, Meiqian Huang, Youwang |
| Copyright Year | 2016 |
| Abstract | The influences of five typical additives (coal fly ash, lignite, quick lime, potassium permanganate, dry sewage sludge), freeze–thaw pretreatment and temperatures (100–180 °C) on isothermal drying behavior of municipal sewage sludge were evaluated using a thermal analysis technique. The drying kinetics of the samples was addressed based on two falling rate stages. At the same adding dosage of 10%, the average drying rates for sewage sludge blending with coal fly ash, lignite, lime, dry sludge and potassium permanganate increased by 3.57, 2.81, 2.65, 3.05, 4.80% in comparison with the raw sewage sludge. The average drying rates for the sewage sludge after freeze–thaw pretreatment increased by 7.08%. Apparent activation energies for all sludge/additive blends and freeze–thaw sludge sample were less than those of the raw sewage sludge. Apparent activation energies of sludge/lime in two falling rate periods decreased with increasing the lime dosage from 10% up to 30%. Apparent activation energies of freeze–thaw sludge sample in two falling rate periods were the lowest in comparison with all sludge/additive blends. Coal fly ash, lignite, lime, potassium permanganate and back-mixing additives as well as freeze–thaw pretreatment were available for improving the thermal drying kinetics of the sewage sludge. |
| Starting Page | 1195 |
| Ending Page | 1205 |
| Page Count | 11 |
| File Format | |
| ISSN | 13886150 |
| Journal | Journal of thermal analysis |
| Volume Number | 128 |
| Issue Number | 2 |
| e-ISSN | 15882926 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2016-12-02 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Sewage sludge Isothermal drying Additives Back-mixing Freeze–thaw Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical and Theoretical Chemistry Condensed Matter Physics |
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