Potential Use of DAF Process in New WTP in Upper Egypt | ||||
| ERJ. Engineering Research Journal | ||||
| Article 11, Volume 25, Issue 3, July 2002, Page 249-260 PDF (624.18 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2002.70921 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Hazem I saleh; Moo Young han | ||||
| 'civil Eng. Dept., Faculty of Eng., Menoufia Univ., Egypt ' School of Civil, Urban & Geosystem Eng., College of Eng., Seoul National Univ., Korea | ||||
| Abstract | ||||
| Conventional water treatment processes, that were installed and used long ago in Upper Egypt, used to treat raw water with fluctuating suspended solids reachg a peak of 3000 mg~l during flood times before Aswan High Dam construction. The spectacular changes in raw water quality following the construction of the Dam were reflected in silt and coarse particulates deposition and increased number of algae. Dissolved Air Flotation (DAF) process is known to be effective in separating low-density particles contrary to sedimentahon. Thls study addresses an investigation of the changing quality of raw water in the study region, using the fhdarnental characteristics of DAF to idenhfjr its potential use as the main treatment process. The study is conducted through identifl;ng the main characteristics of raw water and predominant types and sizes of organic species to be removed. Application diagrams for particles separation for both DAF and sedlrnentation were developed relating particle size, density, settling velocity and influent water temperature. The study also addresses the merits and demerits of DAF process that shows the system compatibility with changing raw water in addition to expected high removal efficiency withm a smaller footprint in the plants | ||||
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