Design of water Treatment Plant-MandviDescription complète
Design of water Treatment Plant-MandviFull description
calculate water treatment plantFull description
Deskripsi lengkap
treatment
calculate water treatment plant
Deskripsi lengkap
Schematic diagram of water filtration plant, showing all steps, screening, sedimentation through alum and clarifier, then sand filteration and then pumping to over head reservoir.
Full description
Complete Water Supply Treatment Plant DesignFull description
Complete Water Supply Treatment Plant Design
To design a water treatment plant first and foremost thing is calculation/estimation of plant capacity in which plant has to run up to design period without trouble.
7 objectives
P.S: Pass Karado does not entertain the short cuts to make engineering easy. So we have disabled the downloading. Pass Karado is just a forum to reduce information asymmetry which is prevalent in I...
Design of Conventional water Treatment Plant Note: i) Data in yellow cell to be suitably filled as per requirement ii) Data in green cell to review the provided value and revise/update if required Design Flow output from WTP 100 MLD Design Flow input to WTP, consider 5% losses in WTP 105 MLD Design flow 4375 cu/hour Pumping Hours in Raw Water Pumping Station 23 Hours On the basis of 23 hour pumping, design flow 4565 cu/hour Consider Inlet channel having width of 2.0 m Consider Inlet channel having depth of Over loading capacity Velocity of flow in channal Length of channel Head loss across manual screen Water supply level at inlet of channal Top Water Level downstream of screen Hydraulic Radious of Channal (Area/Perimeter) Slope Friction loss per 1000 m in Channal Losses in Channal Water Treatment Plant Design flow Inlet chamber detention time Provide Inlet Chamber of size Volume provided Detention Time provided No of Flash Mixers and Clariflocullator Flow in each Flash Mixer Detention Time in flash mixture, range 30-60 seconds Volume required for every flash mixture Provide Diameter of Flash mixture Required depth of Flash mixture Provide depth of Flash mixture Clariflocculators No.s Flow in every Clariflocculator Detention time in flocculation zone, range 10-40 minutes Volume reqd. in flocculation zone Provide Water Depth in flocculation zone, range 3-4.5 m Required Dia of flocculation tank Provide Dia of flocculation tank Volume provided
0.8 m 20% 0.95 m/sec 40 m 16 mm 240.1 m 240.084 m 0.444 m 0.00060 m 0.02406 m 4565 cu/hour 45 Sec 3.6*3.6*4.5 m*m*m 58.32 cum 45.99 Seconds 2 Nos 2282.6 cum/hr 45.0 Sec 28.53 cum 3.25 m 3.44 m 3.50 m 2 Nos 2282.6 cum/hour 30.0 Minutes 1141.3 cum 3.75 m 19.69 m 20.00 m 1177.5 cum
Assume surface loading (Range 35-50 m/day) Surface area required Area of Flocculation Total Area of Clariflocculator including flocculation Dia of Clariflocculator Provide Dia Detention time (detention time range 1-2 hours), Volume required in Clarifying zone Water depth in clarifying zone Volume provided in Clarifying zone, Provide outlet launder of , width Provide outlet launder of , depth Flow in Launder, for 50% flow lenfth Velocity of flow in launder for design flow Weir Loading taken Launder Perimeter required Provide weir to have inlet from both sides, thus launder perimeter required is Actual launder length provided Filters No,s Total output Rate of Filtration Input to each of 10 filters Area required for each filter Provide twin bed filters section Area of each twin filter Inlet: sluice gate width Inlet: sluice gate depth Velocity Outlet: Provide Sluice Valve dia Velocity in outlet sluice valve Wash Water rate Wash water rate reqd Wash water rate reqd Provide SV dia for wash water Velocity Wash out; Provide gate / width Wash out; Provide gate / depth Velocity Air – inlet required rate Air flow rate
35 m/day 1565.2 sqm 314 sqm 1879.2 sqm 48.93 m 49.00 m 2.0 hours 4565.2 cum 3m 4695.65 cum 0.80 m 0.80 m 1141.30 m3/hr 0.50 m/sec 300.00 m3/d/m 183 m 91 m
155.116 m 10 4565 6 456.52
nos cum/hour m/hour
cum/hour 76.09 sqm 3.60m×10.7m *2 No 77.04 Sqm 350 mm 350 mm 1.04 m/sec 350 mm 1.32 m/sec 500 lpm/m2 38.52 cum/minute 0.642 cum/sec 800 mm φ 1.28 m/sec 0.75 m 0.75 m 1.1413 m/sec 750 lpm/m2 57.78 cum/minute
Air flow rate sluice valve for Air inlet, dia for each filter bed Velocity Wash water Pump
0.963 cum/sec 250 mm 19.63 m/sec 2311.2 m³/hr
Capacity required Provide 3 Submerssible pump sets (2W+1S), working pumps= Capacity of each pump Capacity of each pump Air blower
2 no working 1155.6 cum/hr 19260 LPS
Air capacity reqd. Provide two blowers (1W + 1S) of capacity
3466.8 cum/hour 3500 cum/hour
Chemical House Consider an average of dose of alum at strength solution Solution required for 8 hrs Solution required for 8 hrs Provide 3 tanks each of
50 ppm 10 % 18260.87 litres 18.26 cum 3.25×2.8×2.2 m*m*m
Kg kg/m3 cum m sqm 20% %
Alum required for 90 days Taking alum density Volume of alum Taking stake height as , Area required for alum storage
493043 1300 379.26 2 189.63
Taking provision for movement and putting weighing scale etc., Provide additional storage area for Alum Additional area for movement, weight scale Total Area required Total Area required
