Calculate flow rate from population equivalent

Besides the formula is Fluid flow rate area of the pipe or channel velocity of the liquid. The equivalent in terms of a fixed population of a varying or transient population eg.

Using this information we can determine the flow rate Q as follows.

Calculate flow rate from population equivalent. It can be defined as. The equivalent in terms of a fixed population of a varying or transient population eg. Restaurant or Airport based upon a figure of 60 gramsBODhdday and 200 litreshdday.

This means in practice that 1 person resident in a normal house is expected to produce 200 l of sewage flow containing 60 g of BOD per day. In other words 200 l of flow containing 60 g of BOD. 1 PE 200 l of flow 60 g of BOD per day.

As each of the above full occupants are equal to 1 PE calculating the flows BOD can be bypassed to come straight to the PE Figure. 10 x 2 Persons 25 x 4 Persons and 10 x 5 persons 170 PE. Working backwards this development would produce a flow of.

45 Zeilen Population equivalent or unit per capita loading PE in waste-water treatment is the. In general it can be assumed that i Maximum daily flow 2 x average daily flow and ii Minimum daily flow 23 x average daily flow. Population Equivalent Population equivalent is a parameter used in the conversion of contribution of wastes from industrial establishments for.

The PE may be converted to flow rate comply with formula set out in Malaysianstandards 1228 MS1228. Flow m³day PE x 1000 0077 kg BODdayperson BOD mgL 3. Determination of sewage treatment system for mix developmentIf PE 30 septic tank is use.

If PE30 sewage treatment plant is used. We can determine the volumetric flow rate as follows. The flow rate will vary according to the cross-sectional area of the channel.

Area π Diameter 2 4. Area 31415926 812 ft 2 4. Area 0349 ft 2.

The area of the pipe is 0349 ft 2. Using this information we can determine the flow rate Q as follows. Q Area Velocity.

Select or calculate peaking factor PF Peak hourly waste water flow. PF or. PF with max of 4.

Where P Population in 1000 Q Flow in MGD. PF 4 For sewage flow upto 00283 m 3 sec. PF 2 For sewage flow upto 56000 m 3 Now.

Peak hourly domestic flow. Calculated design flow rates in supply pipes of installations inside buildings with the knowledge of draw-off flow rate and the simultaneous use of taps. Methods of calculation for design flow rate shall be based on probability theory andor the measurements of peak flow rates.

Moreover the flow rate depends upon the channel from which the liquid is passing or the area of the pipe and the velocity of the liquid. Besides the formula is Fluid flow rate area of the pipe or channel velocity of the liquid. Derivation of the Flow Rate Formula.

Q refers to the liquid flow rate measured as m3s or Ls. Pressure and Flow rate Pressure Definition Absolute Pressure. Absolute pressure is the force per unit area applied to anything whether that anything is a solid liquid or gas.

Imagine a column of liquid above an area 1 ft by 1 ft. The force exerted on the 1ft x 1 ft area is the weight of that column of liquid. If the liquid is water and h 5 ft then the total volume of the column is 5 ft3.

Online converter for flow rate by volume and mass conversion charts with flow metrics conversion factors. Automatic tool to precisely calculate velocity from one flow unit into other equivalent flow rate US UK Metric units. Flow passing through a controlled space gets measured with air and gas flow meters water or other fluids concentration liquids or mass material.

JavaScript source code simple html flow units calculator. The following formula is used to calculate a population size after a certain number of years. Xt x 0 1 r t.

Where xt is the final population after time t. X 0 is the initial population. R is the rate of growth.

And t is the total time number of years. Gallons per minute Imperial 021996924829909. Gallons per second Imperial 00036661541383181.

1 1 m3103 L. 2 1 ft3283168466 L. The equation for calculating the passenger-car equivalent flow rate is.

V peak hour volume vph 2500 PHF peak-hour factor 095 f HV heavy-vehicle adjustment factor for E T and E R use the small table for extended general freeway segments f p driver population factor 10 for commuter traffic v p 15-minute passenger-car equivalent flow rate pcphpl. Surface Loading Rate or Surface Overflow Rate gpdsq ft Area sq ft Flow gpd Three Normal Equation N1 x V1 N2 x V2 N3 x V3 where V1 V2 V3 Two Normal Equation N1 x V1 N2 x V2 where N concentration normality V volume or flow Velocity ftsecond Area sq ft Flow Rate cu ft sec or Time second Distance ft. Typical Wastewater Flow Rates from Recreational Sources Source Unit Range Typical Apartment Resort Person 50-70 60 Person 8-50 40 Cafeteria Customer 1-3 2 Employee 8-12 10 Campground developed Person 20-40 30 Cocktail Lounge Seat 12-25 20 Coffee Shop Customer 4-8 6 Employee 8-12 10 Country Club Member Present 60-130 100.

Q V t Q V t where V is the volume and t is the elapsed time. The SI unit for flow rate is m 3 s but a number of other units for Q are in common use. For example the heart of a resting adult pumps blood at a rate of 500 liters per minute Lmin.

Note that a liter L is 11000 of a cubic meter or 1000 cubic centimeters 10 -3 m 3 or 10 3 cm. Select the corresponding volumetric and time units from the upper pair of selection boxes to define the flow rate measurement unit. Select the volumetric and time unit for the flow rate unit you are converting to from the lower pair of selection boxes.

The converted rate of flow value will display in the lower text box.