الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 163 |  |  |
| | | from | 163 | | |
Abstract
This study targeted to develop a compact unit with a small size and minimum cost that works as a pretreatment unit for the ultrafiltration modules to reach the maximum benefits from this type of plant. This unit targets to produce water with quality suitable to enter the ultrafiltration modules according to the manufacturer.
The study was divided into two main parts. The first part was concerned with the development of the pretreatment units. There were two units created, one for applying sedimentation process and the other one for applying filtration process. The second part was concerned with testing these units and determine the ability to use them. Four runs with different retention times were used to test the sedimentation unit and each run was repeated three times with three different water sources that had different TSS concentrations. The results proved the suitability of using this unit for the ultrafiltration pretreatment process. On the other hand, seven runs made using different filter media to determine the suitability of this unit. Sand, anthracite coal, and agricultural waste were the three media used in this study as mono, dual or triple filtration processes. Experimental results proved that the triple filtration had the best removal efficiency and the agricultural waste had the worst removal efficiency.
The study concludes mathematical model for the sedimentation process can be used in the design of the sedimentation pretreatment units. Another model created for the filtration process was used to determine the filtration media cost for the required unit. These models recorded error percentages in an acceptable range