Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane Filtration
Membrane filtration is an efficient wastewater treatment technology. However, sludge particles will easily aggregate and deposit upon the membrane surface, which will decrease the water productivity of membrane filaments. Focusing on the influence of velocity on particle behavior, experimental and n...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-08-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/12/15/7869 |
| _version_ | 1797442680814305280 |
|---|---|
| author | Peifeng Lin Qing Wang Xiaojie Xu Zuchao Zhu Qiangmin Ding Biaohua Cai |
| author_facet | Peifeng Lin Qing Wang Xiaojie Xu Zuchao Zhu Qiangmin Ding Biaohua Cai |
| author_sort | Peifeng Lin |
| collection | DOAJ |
| description | Membrane filtration is an efficient wastewater treatment technology. However, sludge particles will easily aggregate and deposit upon the membrane surface, which will decrease the water productivity of membrane filaments. Focusing on the influence of velocity on particle behavior, experimental and numerical research was carried out. The <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>k</mi><mo>−</mo><mi>ε</mi></mrow></semantics></math></inline-formula> turbulent model, porous media model and DPM model were adopted in the simulation. The flow characteristics including pressure, velocity and particle concentration contour are discussed using different inlet velocities of 0.6, 0.8, 1 m/s. The effects of gravity were also investigated. The final evaluation suggests the best working conditions in three scenarios, which could help to suppress membrane pollution. The results indicate that when the inlet velocity is about 1 m/s, particle deposition is weakest, resulting in better water productivity. |
| first_indexed | 2024-03-09T12:45:30Z |
| format | Article |
| id | doaj.art-0ab26330bed14a01a2cfa143b4c95ee9 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T12:45:30Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0ab26330bed14a01a2cfa143b4c95ee92023-11-30T22:11:57ZengMDPI AGApplied Sciences2076-34172022-08-011215786910.3390/app12157869Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane FiltrationPeifeng Lin0Qing Wang1Xiaojie Xu2Zuchao Zhu3Qiangmin Ding4Biaohua Cai5Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaKey Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaKey Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaKey Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaHefei General Machinery Research Institute, Hefei 230032, ChinaWuhan Second Ship Design and Research Institute, Wuhan 430064, ChinaMembrane filtration is an efficient wastewater treatment technology. However, sludge particles will easily aggregate and deposit upon the membrane surface, which will decrease the water productivity of membrane filaments. Focusing on the influence of velocity on particle behavior, experimental and numerical research was carried out. The <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>k</mi><mo>−</mo><mi>ε</mi></mrow></semantics></math></inline-formula> turbulent model, porous media model and DPM model were adopted in the simulation. The flow characteristics including pressure, velocity and particle concentration contour are discussed using different inlet velocities of 0.6, 0.8, 1 m/s. The effects of gravity were also investigated. The final evaluation suggests the best working conditions in three scenarios, which could help to suppress membrane pollution. The results indicate that when the inlet velocity is about 1 m/s, particle deposition is weakest, resulting in better water productivity.https://www.mdpi.com/2076-3417/12/15/7869membrane filtrationmembrane foulingnumerical simulationDPMwater productivity |
| spellingShingle | Peifeng Lin Qing Wang Xiaojie Xu Zuchao Zhu Qiangmin Ding Biaohua Cai Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane Filtration Applied Sciences membrane filtration membrane fouling numerical simulation DPM water productivity |
| title | Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane Filtration |
| title_full | Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane Filtration |
| title_fullStr | Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane Filtration |
| title_full_unstemmed | Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane Filtration |
| title_short | Research on the Influence of Inlet Velocity on Micron Particles Aggregation during Membrane Filtration |
| title_sort | research on the influence of inlet velocity on micron particles aggregation during membrane filtration |
| topic | membrane filtration membrane fouling numerical simulation DPM water productivity |
| url | https://www.mdpi.com/2076-3417/12/15/7869 |
| work_keys_str_mv | AT peifenglin researchontheinfluenceofinletvelocityonmicronparticlesaggregationduringmembranefiltration AT qingwang researchontheinfluenceofinletvelocityonmicronparticlesaggregationduringmembranefiltration AT xiaojiexu researchontheinfluenceofinletvelocityonmicronparticlesaggregationduringmembranefiltration AT zuchaozhu researchontheinfluenceofinletvelocityonmicronparticlesaggregationduringmembranefiltration AT qiangminding researchontheinfluenceofinletvelocityonmicronparticlesaggregationduringmembranefiltration AT biaohuacai researchontheinfluenceofinletvelocityonmicronparticlesaggregationduringmembranefiltration |