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Water Treatment Plant

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  1. 1. CENG 490Group # 6<br />El Kanater Water Treatment Plant<br />Abdel Warith, Mohamed<br />El Aroussi, Ahmed<br />El Beheiry, Ahmed<br />Ezzo, Ahmed<br />Osman, Tarek<br />
  2. 2. Outline<br />Introduction<br />Project Location<br />Calculations<br />Proposed Sanitary System<br />Schematic Design<br />Tasks<br />
  3. 3. Introduction<br />Project Description: Water Treatment Plant in Mansheyet el Kanater<br />Owner: Ministry of Housing, Utilities and Urban Development<br />Location: Between two water streams; Rasheed and Al rayyah al beherybranch<br />The WTP will serve Mansheit El Kanater & the Nabouring Villages <br />
  4. 4. Project Location<br />
  5. 5. Project Location<br />
  6. 6. Calculations<br />Population in the previous 3 decades<br />
  7. 7. Calculations Cont’d<br />Population forecast<br />1) Arithmetic method<br /> k = ∆P/∆t<br /> Pt = Po + k . ∆t<br />Where Po : initial population<br />Pt : population after time t<br />k : population growth factor<br />population growth factor (k) is 4543.7<br />
  8. 8. Calculations Cont’d<br />Population forecast<br />2) Geometric method<br />k = ln(P2/P1) / ∆t<br />Pt = Po . ek . ∆t<br />Where Po : initial population<br /> Pt : population after time t<br />k : population growth factor<br />population growth factor (k) is 0.02736<br />
  9. 9. Calculations Cont’d<br />Population forecast<br />3) Population Growth method<br />Pn = Po (1+r)n<br />Where Po : initial population<br />Pn : population after n years<br />r : population growth rate (%)<br />From collected data, r= 2.66<br />
  10. 10. Calculations Cont’d<br />
  11. 11. Calculations Cont’d<br />Since our WTP service area consists mainly of villages with populations less than 50,000 capita, we will use a water consumption of 135 l/c/d.<br />The rate of increase of consumption rates can be calculated as 1/10 of the rate of increase of the population.<br />Water Demand<br />
  12. 12. Proposed Sanitary System<br />
  13. 13. Fresh Water Pumping Station<br />Backwash collecting tanks<br />R.W Pumping Station<br />Fresh Water Tanks<br />Coagulant added<br />Back Wash<br />Process<br />Fresh Water Pumping Station<br />Ground Tanks<br />R.W Pumping Station<br />Source/ Intake<br />Screening<br />Sand Filters<br />Distribution Chamber<br />Flash Mixing Tanks<br />Sedimentation Tanks<br />Chlorine Added<br />Sludge collection<br />To MansheyatKanater Village<br />Sludge Pumping Station<br />Recycled Water<br />Gravity Thickeners<br />Sedimentation Tanks<br />Sludge<br />Sludge Disposal<br />Sludge Lagoon<br />
  14. 14. Proposed Sanitary System<br />Comes from surface water (Rayah El Beheiry)<br />Water is allowed to flow through a screening process before entering the Raw Water Pumping Station <br />The first step in purifying surface water is to remove large debris such as sticks, leaves, trash and other large particles, which may interfere with subsequent purification steps <br />The water will be pumped to higher water head using Centrifugal Pumps <br />Intake Source<br />
  15. 15. Proposed Sanitary System Cont’d<br />Allocates the water to the Clariflocculator<br />As the water is distributed along the tanks, Primary Disinfectant (Pre-Chlorination) is added to the raw water <br />Water is chlorinated to minimize the growth of fouling organisms (e.g. Algae) on the pipe-work and tanks <br />Moreover, the Distribution Chamber receives Recycled Backwash Water (RBW) <br />Main Distribution Chamber<br />
  16. 16. Proposed Sanitary System Cont’d<br />Are Sedimentation Tanks, were the coagulation, flocculation, mixing and sedimentation process all take place<br />Coagulant is Added to the Raw Water<br />IT enables Small Particles to form big flocs faster<br />Flocs Precipitate at the bottom forming sludge<br />Sludge is collected in the Sludge Collecting Tanks<br />Clariflocculators contain circular channels that allow the overflowed water to move to the next treatment process (Rapid Sand Filters) <br />Clariflocculator<br />
  17. 17. Proposed Sanitary System Cont’d<br />Water moves vertically through sand that often has a layer of activated carbon or anthracite coal above the sand <br />The top layer removes organic compounds such as Algae <br />Most particles pass through surface layers but are trapped in pore spaces or adhere to sand particles <br />Filters must be backwashed using water, in order to prevent pores between sand from becoming blocked <br />Rapid Sand Filters <br />
  18. 18. Proposed Sanitary System Cont’d<br />Final disinfectant (Chlorine) must be added to get rid of all the harmful microorganisms that make it through the RSF<br />Treated Water enters into the Ground Reservoirs and are afterwards pumped using Treated Water Pumping Station <br />Water is pumped to Elevated Tanks and various Water Networks that the plant feeds<br />Some of the water stored in the Ground Tanks, is used in the backwash process <br />Ground Reservoirs/Tanks<br />
  19. 19. Proposed Sanitary System Cont’d<br />The treatment water process is cut off for a distinct period, to allow the backwash process to take place <br />Water is pumped backwards from the ground tanks to the filters, removing particles stuck in the RSF<br />Water is pumped backwards to the Main Distribution Chamber that allocates it back to the Clariflocculators<br />Some particles precipitate in the Backwash Water Settlers, which are the removed to the Sludge Collecting Tanks <br />Backwash Process<br />
  20. 20. Proposed Sanitary System Cont’d<br />Gravity thickeners are heavy-duty circular collectors that are custom designed to handle concentrated municipal and industrial sludge<br />Allows Sludge to concentrate (Thickening)<br />After the Sludge concentrates at the bottom, it is pumped to the Sludge Lagoons<br />Collected water is pumped back to the Main Distribution Chamber, which then distributes it to the Clariflocculators<br />Gravity Thickener Tanks<br />
  21. 21. Schematic design<br />
  22. 22. Tasks<br />Design the general layout of the water treatment plant<br />Study the water treatment process and the necessary components of a WTP<br />The structural design of the water tanks and the different buildings of the project<br />Design the required sanitary system needed to transport the water throughout the treatment cycle, beginning from the intake until the exit<br />
  23. 23. Thank You!!!<br />