آمار
| تعداد نشریات | 23 |
| تعداد شماره‌ها | 383 |
| تعداد مقالات | 3,036 |
| تعداد مشاهده مقاله | 2,760,826 |
| تعداد دریافت فایل اصل مقاله | 1,950,061 |
Hydraulic performance of constructed wetland at NUST H-12 campus | ||
| Journal of Applied Research in Water and Wastewater | ||
| دوره 8، شماره 2 - شماره پیاپی 16، اسفند 2021، صفحه 169-173 اصل مقاله (848.42 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22126/arww.2022.6661.1217 | ||
| نویسندگان | ||
| Laraib Pervaiz Akhter* 1؛ Hamza Farooq Gabriel1؛ Sajjad Haider1؛ Shatirah Akib2 | ||
| 11 Department of Water Resources Engineering and Management, School of Civil and Environmental Engineering (SCEE), National University of Sciences & Technology (NUST), Islamabad, Pakistan. 2 NUST Institute of Civil Engineering (NICE), National University of Sciences & Technology (NUST), Islamabad, Pakistan. | ||
| 2School of Architecture, Design and the Built Environment, Nottingham Trent University, Nottingham, UK. | ||
| چکیده | ||
| The paper narrates a study of a numerical model taken into consideration to explore the overall hydraulic performance of Constructed wetland located at NUST H-12 Campus, Islamabad. The governing equations of flow in wetland ponds and the transport particle were solved using COMSOL Multiphysics 5.0. In this study, the simulation of the model is done to find the dead spaces and short-circuiting in the wetland along with providing remedial measures to reduce the dead spaces. The comparison of two turbulent models i.e. K-ω and K-ε were also made to depict the velocity of wetland and the particle tracer study was also conducted to find the behavior of wetland. The model was simulated with experimental data and the results revealed that 15% to 20% area of wetland is experiencing short-circuiting. Alternative wetland designs were suggested for the same flow condition. The K-ω model was considered to be more suitable due to the limitation of K-ε model. | ||
| کلیدواژه‌ها | ||
| Constructed wetland؛ COMSOL؛ Computational fluid dynamics؛ Simulation modelling؛ Turbulent model؛ Water reuse | ||
| مراجع | ||
|
Barr D., Coefficient of permeability determined by measurable parameters, Ground Water 39 (2000) 356-361. Chang J., Wu S., Dai Y., Lianga W., Wu Z., Treatment performance of integrated vertical-flow constructed wetland plots for domestic wastewater, Ecological Engineering 44 (2012) 152-159. Eslamian S., Okhravi S., Eslamian F., Constructed wetland, Hydraulic design, 1st Ed., Taylor and Francis, CRC Press, USA; (2020). Guinot V., and Soares-Farzao S., Flux and source term discretization in two-dimensional shallow water models with porosity on unstructured grids, International Journal for Numerical Methods in Fluids 50 (2006) 309-345. Guo C., Yuanlai Cui Y., Luo Y., Response of solute transport model parameters to the combination of multiple design parameters and their quantitative expression with hydraulic indicators of FWS-constructed wetlands, Environmental Science and Pollution Research 27 (2020) 43283-43295. Hinze J.O., Turbulence, Second Edition., McGraw-Hill, New York, (1975). Jenkins G.A., Greenway M., The hydraulic efficiency of fringing vegetation in constructed wetlands, Ecological engineering 25 (2005) 61–72. Johnson K.D., Martin C.D., Moshiri G.A., Mc. Crory W.C., Performance of a constructed wetland leachate treatment system at the Chunchula landfill, Mobile Country Albama, Chapter 5, CRC Press/Lewis Publishers: Boca Raton, FL. USA (1999) p. 57-70. Liwei F., Reti H., Wenxing W., Zexiang L., Zhiming Y., Application of computational fluid dynamic to model the hydraulic performance of subsurface flow wetland, Journal of Environmental Sciences 20 (2008) 1415-1422. Metcalf E., and Eddy H.P., Wastewater engineering: treatment disposal and reuse, McGraw Hill, New York, (1991). Murtaza G., Ghafoor A., Qadir M., Owens G., Aziz M.A., Zia M.H., Saifullah, Disposal and use of sewage on agricultural lands in Pakistan: A review, Pedosphere 20 (2010) 23-34. Persson J., Somes N.L.G., Wong T.H.F., Hydraulic efficiency of constructed wetlands and ponds, Water Science and Technology 40 (1999) 291-300. Rengers E.E, Barbosa da S., Paulo P.L., Hydraulic performance of a modified constructed wetland system through a CFD-based approach, Journal of Hydro-environment Research 12 (2016) 91-104. Schiestel R., Modeling and simulation of turbulent flows, 1st Ed. ISTE USA, (2008). Ta C.T., and Brignal W.J., Application of computational fluid dynamics technique to storage reservoir studies, Water Science and Technology 37 (1998) 219–226. Tanner C.C., Nguyen M.L., Sukias J.P.S., Nutrient removal by a constructed wetland treating subsurface drainage from a grazed dairy pasture, Agriculture Ecosystems and Environment 105 (2005) 145-162. Thackston E.L., Jr F.D.S., Schroeder P.R., Residence time distribution of shallow basins, Journal of Environmental Engineering 113 (1987) 1319-1332. Wang R., Xu L., Xu X., Xu Z., Cong X., Kong K., Hydraulic characteristics of small-scale constructed wetland based on residence time distribution, Environmental Technology (2021a) 1-10. Wang R., Xu L., Xu X., Xu Z., Cong X., Simulation and optimization of hydraulic performance of small baffled subsurface flow constructed wetland, Water Science and Technology 84 (2021b) 632-643. Wilcox D.C., Reassessment of the scale-determination equation for advanced turbulence models, AIAA Journal 26 (1988) 1299-1310. Wood M.G., Greenfield P.F., Howes T., Johns M.R., Keller J., Computational fluid dynamic modeling of wastewater ponds to improve design, Water Science and Technology 31 (1995) 111–118. | ||
|
آمار تعداد مشاهده مقاله: 232 تعداد دریافت فایل اصل مقاله: 357 |
||