|
Identifying the optimal location for the outlet of petrochemical desalination plant saline wastewater in Chabahar coastal
|
Fatemeh Rajaei *    |
| university of zanjan |
|
|
Abstract: (214 Views) |
The main objective of the present study is to model the discharge of saline wastewater from a petrochemical desalination plant on the Chabahar coast to achieve an optimal design of the wastewater outlet location. In this regard, various scenarios based on single- and multi-valve wastewater discharge, the direction and angle of the valves, and the effects of different flow velocities and tides on the behavior of the pollution plume and changes in salinity concentration were investigated using the CORMIX numerical model. The input data for investigating the distribution and dispersion of saline wastewater include environmental parameters (coordinate system, regional wind information, Manning coefficient, discharge depth, rate and density of saline wastewater, flow information, etc.) and discharge system parameters. The discharge rate of saline wastewater from the desalination plant was considered to be 55 kg s-1 and its density was 1053 kg m-3. Based on the modeling results, the use of alternate ports increases the salinity concentration in the area and the co-directional ports provide better results. At average flow speed, the pollution halo will move towards the coast, but the salinity concentration on the coast will be within the standard range. At maximum ambient flow, the increase in salinity concentration on the coast will be higher than the environmental standard. According to the results of different scenarios, the location of the water intake site from the shoreline at a depth of 12 m was estimated to be about 425 m and the distance of wastewater discharge from the shoreline at a depth of 5 m was estimated to be about 250 m. The depth mentioned for water intake is based on the effect of the wastewater output rate, and the depth of planktonic bloom and the red tide phenomenon are not considered in this study.
|
Article number: 6 |
| Keywords: CORMIX model, Salinity concentration changes, scenarios, Site Selection |
|
|
Full-Text [PDF 1835 kb]
(19 Downloads)
|
|
Type of Study: Research |
Subject:
Special
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
