Calculation for chemicals

You ask for "the full information regarding chemicals and formulas with calculations".

Yet you do not provide enough basic information, to supply you with what you ask.

.....

If I would tell you every thing I know about the subject we would be spending weeks. Not to mention the months in the field.

If your knowledge is at a level were you can even consider asking and formulating in the way you did you have a steep learning curve in front of you. Good luck mate.

The calculation of the required amounts of either sodium hypochlorite or calcium hypochlorite for purification of waste water treatment or for purification of water for swimming pools can only be determined when the quality and quantity of the water to be treated is known. Unless you can provide this information, would suggest you Google the subject.

Required volume of chemical to be dosed in = [volume of water X (required free chlorine level + chlorine demand)]/concentration of chemical dosed in e.g. [10 cubic meters X (2ppm free chlorine + 5ppm chlorine demand)]/0.45, assuming volume of water to be treated is 10 cubic meters, required free chlorine concentration is 2ppm, chlorine demand is 5ppm, & chemical concentration is 45%.

Hi DVader1000

Could you please help me on following?

We want to dose sodium hypochlorite to potable water. This will be dosed at inlet line of potable water to potable tank. I am calculating the dosing rate of Sodium hypo reqd (quantity of sod hypo per day) at desired conc of 0.5% and the sodium hypo solution available in market is of 12%.

Could you please tell me how to calculate the dosing rate?

Calcium hypochlorite is generally used because it doesn't 'go off' as readlily as sodium hypochlorite, however the amount of chlorine per mole is doubled. Calculations are done on the basis of atomic weights, for which a Periodic Table gives sufficient information.

All you need to know is the volume of the pool or tank you want to treat with chlorine and what amount of residual chlorine you need to sanitize the water. For a pool this is pretty simple because you aren't dealing with suspended solids. There will be a table or a recommendation from the chemical supplier for how much of their solution to add based on the volume of the pool.

For wastewater treatment the calculation becomes highly dependent on the amount of solids in the water. The local sewage treatment plants are testing the effluent constantly to monitor the amount of chlorine exiting the plant to be sure that it is high enough (usually 2ppm arond here). So this is a rather "professional chemist" type endevour.

Let's see what it looks like in real time. Right now we are treating 278 mgd of secondary wastewater at a rate of 3.8 gpm using sodium-hypochorite in a continuous flow process. The pH is 5.9. Measurements are taken prior to de-chorination using sodium-bisulfate. Basin detention time is 39 minutes.

Your mileage my vary. Tell us about your process.

Hello,

I want to know about the calculation of Anti-Scalant in Reverse Osmosis Plant?

As a rough guide, and it is rough,

8mls of 12.5% Sodium Hypochlorite in 1000L of water is equal to 1mg/L and that is not taking in to account any demand in the source water so you would need to carry out some testing to determine the demand versus the required residual.