Before to Calculate the capacity of the Water Softener (softening) Plant, to choose how much water to be softened. In this case, 100M3 to be softened at 400 ppm of Feed Hardness to 5 ppm.

**How to Calculate the resin capacity?**

The Resin Exchange Capacity is mention into the product’s supplier Data Sheet*.

Normally cationic exchange capacity : 55/liter of resin.

Hence, Liter of resin = (Feed Hardness in ppm X Water Qty M3) / Exchange capacity

= (400 x 100 / 55) = 727 liter resin sufficient

**How to Calculate Salt Quantity?**

= 110 Kg NaCl (150 Gram NaCl / liter of resin)

so quantity of water require to dilute @100% solution

= say 344 Liter Water { solubility of NaCl (320 Gram NaCl @ 20 Deg C / liter of Water )}

to get 10 % solution add 3440 liter of water

Now 3784 liter is having for regeneration and that much of water to be injected 20 Minute

then start backwash process to another 40 minute

after that fast rinse until get hardness is < 5 ppm once it is reached now the plant is ready to start the process, it can extract up to 100 m3

Feed pressure to be maintained up1.5 – 2 Bar,

*Resign exchange capacity is important, it is vary product to product.

How to Calculate Salt Quantity?

= 150 Kg NaCl { ? 150 Gram NaCl / liter of resin)

Is the above calcualtion wrong?

150 Gram NaCl x 727 = 109.05 Kgs of NaCl

Please correct me if I am wrong.

109.05 kgs is correct, thanks to point it

please give me softner plant vessel size calculate

Thanks & regards

paresh patel

M – 9898665184

from – B T water treatment pvt ltd in gujarat

how to formula of new softener design

Correct sir

what is the meaning of 727

727 Liter

Also please let me know what is the purity of NaCL you have considered in the above calculation

80 to 85%

Sir, tds is 1059ppm and daily need 2000lit water plz give the resin qty and vessel size for daily recharge and also give salt qty to recharge. Awaiting reply.

Dear sir

Your information more help full to take knowledge.

please wats the best approach to this design question

Design a water softening plant for a water work having the following data:

Hardness of water= 450 mg/liter as CaCo3

Available hardness after treatment = 50 mg/liter as CaCo3

Quantity of water to be treated = 25000 liter/ hour

Ion exchange capacity of resin to be used in the plant = 10 kg of hardness / cub.m

Salt required for regeneration of resin= 45 kg/ cub.m of the resin

The water softening plant works 2 shifts of 8 hours per day. Assume any suitable data where necessary.

thank u

What would be the efficiency of hardness removal we could expect? From say 800 ppm by this method how much hardness can we remove and what would be left?

Thanks

Navin

WHAT IS THE PRESSURE DROP FOR USING 1000 LPH SOFTENER BY USING 10X54(Dia. x Height) with multiport valve. eg. inlet pressure is 2 kg / cm square, what is the output pressure after softening

how to calculate the hypo dosing in wtp?????

Feed flow X Required ppm x Plant Running Hrs / 10 x 6 (% of hypo chemical)

What would be the efficiency of hardness removal we could expect? From say 800 ppm by this method how much hardness can we remove and what would be left?

our flow rate 30 m3/hr and Hardness calculate for resin is 320 ppm. But inlet hardness is vary from 250 ppm to 700 ppm and we use the softener vessels is 48×72 and resin qty is 1210 ltr. and our Obr is 200 m3/ hr. so after regeneration we got hardness only 20 ppm but party required less than 5 ppm so, what we do.

Please make NaCl solution by Soft Water for regeneration and Keep Another Softener vessel on the basis of 20 ppm hardness. i think it ill solve this issue.

We have 20 m3/hr Softener tank and our Raw water hardness 95 ppm and TDS 1080 ppm Kindly suggest the recipe how much resin required and how much NaCl is required for soften it?

hallo sir we need Building construction water softeners desining

Dear khurram Shahzad,

Hardness is 95 say 100 PPM. your flow rate is 20 m3/hr take regeneration after every 24 hr i.e. after 480 m3. because your hardness is not much.

kg load of CaCO3 is 48 kg. i.e. if we take exchange capacity of resin 55% resign require will be 875 lit.

NaCl required will be 135 kg for each regeneration

Mr Kunal salt 131 kg enough

i need frp softner base on 150000 ltr soft water every day on 700 ppm

pls suggest

we have done a sea water treatment three months before. raw water dds is 15550 after water treatment we get 55ddsppm. But a problem arises.a

aferr having the water it caught the throat please. give solution.

How to calculate the resin exchange capacity.

I have one 1354 Vessel and one 40nb multiport valve. I want to design a softner of 1000 lts/hr capacity. The hardness is 450 ppm. The above material is suitable for this capacity of softner. Please help me in this. And what is the Re-Generation time. Please explain me.

haredness is 800ppm , requirment of water 25 m3 per day please send resin qty and salt qty.taken water

How to design the D.M. Plant?

How to calculate the resign requirement (Anion & Cation)?

What should be the free-board or may I use it as packed bed?

In my knowledge 30% should be freeboard is it OK?

Dear khurram Shahzad,

Hardness is 95 say 100 PPM. your flow rate is 20 m3/hr take regeneration after every 24 hr i.e. after 480 m3. because your hardness is not much.

kg load of CaCO3 is 48 kg. i.e. if we take exchange capacity of resin 55% resign require will be 875 lit.

NaCl required will be 135 kg for each regeneration

Dear sir, here we had 15m3/hr plant, our raw water have 300ppm hardness and 800ppm tds, after softening we get result 5ppm but with in week get high hardness, per day feed 100m3. Y this happening?

Above information increase my knowledge thank of all team

I need 30 m3/hr softener plant . Hardness need to reduce fro 350 ppm to less than 5

1. Tank size ?

2. Resin quantity?

3. Salt for regeneration how much ?

Thanks

Mahbub

We can give you the softener quote if u wish

How to calculated the raisin quantity based on tank capacity.

how to design softener vessel with a capacity of 5m3

Sir,

For 800m3 softener how much we have to use please explain.

Sir,

For 800m3 softener how much resin we have to use please explain.

You need to say also Hardness of Water in PPM

useful info thanku

I want frb vessel size and resin quantities for all vessel size pdf sent me sir

One hour 10, 000 liter outlet softener water which size vessel and resin quantities

Dear sir, Raw water hardness is8450ppm . I want softener design like resign qty and salt calculation. The flow rate is 2m3/hr

Resin Qty= 307 ltr

150 Gram NaCl / liter of resin

Therefore = 46 Kg Salt

Interesting ,Willing to see your process of calculation .

Thanks

25m3/hr resin qty 7000 liter now softener regenration with 1250 kgs nacl but after regeneration hardness is 50ppm client is required less then 5ppm please reply how to solve this.

Note what is regnration time?

1500 liters resin which ejector to be used

Vacuum type ejector

sir piz suggest me softner for folowing condition1,total hardness as CaCo3 -1500 (2)TDS 5000 (3) SO4 2800 (4)Chlorides 400 ppm

sir perday demond of soft water is max 15m3

I need 10 m3/hr softener plant . Hardness need to reduce fro 350 ppm to less than 5

1. Tank size ?

2. Resin quantity?

3. Salt for regeneration how much ?

Thanks

Sanjay

10 m3/hr softener plant .

Hardness to reduce fro 400 ppm to less than 5

P/z say the

1. Tank size ?

2. Resin quantity?

3. Salt for regeneration how much ?

Thanks

Sanjay

10m3 softener sir p/z say the resin quantity and tank size,

salt for regeneration

Dear sir

300 m3/hr capacity softner plant for textile how much resin is required and if three vessel and each 150 m3/hr than what will be vessel size

Need to know the lts of resin for 1248 vessel (1000lph). Hardness is 175. TDS 1400

Sir please mention that my plant capicty is 10m3 and water hardness is 380 how much resin is used and how much salt is used in regeneration sir please tell answer sir.and tds of fees water is 670

Dear sir ion exchange na225 resin qty 100 ltr and inlet ppm 650

So what obr and how calculate obr plz sir formula

i have 50 liter resin to how to use of quntity in 1000 liter water .

Can anybody suggest what is the pressure drop to consider per meter of resin bed ?

Dear sir

softener sir p/z say the resin quantity and tank size,

salt for regeneration

WHAT IS EXCHANGE CAPCITY

Very informative article regarding resin calculation.