May you sent more analytical data and the source of this waste water that will help all everyone can sharing on the right way. KNO3 is salt you can use RO  with costly so before this waste is produced you can  find out many way to solve with low price. aggasit2012@gmail.com. BKK Thailand

Hello 

Thank you, for ​the suggestion ​ ​​please check ​​​the flowing , ​​​which may be ​​​useful ​ ​ ​

the source of ​​​​water is due ​​to ​​a ​​buffering ​​​​process carried ​​​​out to ​cation ​​​​exchange ​ ​​​Ca++ with K+ ​​in ​​a natural ​​grow ​​Medea (​​Coconut ​Peath )​​ . ​ ​ ​ ​

Ca++ is ​​​​introduced as ​​​​Ca(NO3)2 . Pls ​​​​check the ​​​​results of the ​​​​analysis. ​ We have carried our trial to substitute the Ca(NO3)2. We used CaCl2 & Ca(OH)2 , but the cation exchange rate was not satisfactory. ​

In addition to ​K+ there is Ca++​ and Na+ in ​​considerable ​amounts in the effluent . ​

However pls ​check bellow ​the current ​analytical ​report. We will ​be doing a ​fresh ​assessment ​ of the ​effluent again ​with mote ​details on the ​Cations present.​ will let you ​Have that as ​well, soon.​  ​

Water volume 800-1,000m3/d​

 Conductivity:4800MicS/cm

COD:  1150

BOD:125

pH5.5-6.5

Chlorides659

Other ​​​​parameters (​​​​Minerals, etc):​​​​

Nitrate as No3 ​​​​: 1100 - ​1750 ​​​mg/l ​ ​
Nitrite as ​​​​No2 : 30 - 60 ​​​​mg/l

Our objective:  To remove NO3- ​​​​to 30ppm or ​​​​closer.​​​​

Discharge limits to achieve,

COD 400ppm / ​​​​BOD 250ppm / ​​​​NO3- 30ppm / ​ ​​​
Cl- 600ppm ( ​​​​as CL ) / ​​​​Conductivity ​​​​2250MicS/​​​cm

Published June 17, 2018 05:06 by Aquablu Lanka, Managing Director at Aquablu lanka Pvt ltd

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