It is important to mention ...

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It is important to mention the existing treatment system to know why the effluent is nitrified. Please give some highlight on the treatment processes.  

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Hello Dinkissa

Thank you, ​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. ​

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

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