Bicarbonate Alkalinity

[KirstyUAP]

I have a client who is drawing water from a local creek and the water is very high in bicarbonates. Is there a way to treat this water to be used for irrigation purposes on a racecourse?

 

[Feyz]

Kirsty;
A H2SO4 dosage is recommended to obtain H2O and CO2 from raw water with high HCO3 content. After acid dosage a CO2 removal degassor will be a must to increase pH. After CO2 removal, if you are still having a low pH, try a neutralization NaOH dosing system.

HCO3- + H+ > H2O + CO2

H2SO4 > 2 H+ + SO4

I hope this will help but if you still need any asistance please do not hesitate to contact me.

Feyz

P.S. I thought you can calculate the necessary dosage volume by the given equations.

 

[bimr]

Feeding acid is probably not going to help too much because the pH that you are starting with is probably in the neutral pH range.

Alkalinity is removed by either lime softening the water or using a low pressure RO membrane. Neither of these methods are probably going to be economical for you.

Do you have a complete water analysis? And why are you so concerned about the alkalinity?

 

[Muggle]

Take a look at bicarbonate/carbonate destruction using electrolytic treatment - this can be done in a single pass and reduce barbonates/bicarbonates by 90% - no chemicals-been done with coal mine well water - contact Dick Kersey at ECP International LLC for more info and system cost. He will need to know the irrigation volume per day and flow rate you'r using (well or pond pump flow rate).

Dave/Aquatic Technologies