@ maxmaciek :
That's a good idea, thanks!
There are two kinds of solvent they are using. One solvent is insoluble and I'm finding out how is the other one. If both are insoluble then I can propose them a separator.
Do you think a gravity separator is enough? Or should I use centrifuge type...
The WW is coming from paint stripping area in automotive industry. Goods (such as muffler, cylinder head of motorcycle) that have defect on it's paint must be repaired.
Those defect goods will have paint striping by dripping it in acid, "Halogenated Hydrocarbon solvent" and then sprayed with...
I still don't think that AS system is suitable for this WW.
Besides the large area requirement it's capital and operation cost are relatively high.
Do you have other idea to treat the BOD/COD?
How about absorption using activated carbon?
Thanks bimr
The reference for hydroxide precipitation is quite helpful.
If I can reduce the heavy metals (Fe&Zn), how is the effect on BOD and or COD value?
I think applying AS process is not suitable on this WW because the COD to BOD ratio is bigger than 1.0
I'm trying to remove Zn & Fe from wastewater with chemical coagulation/precipitation method. From chemical compounds analysis there are 5 pollutants to be treated :
1. Iron (Fe) = 9.07 mg/lt to achieve value of 5 mg/lt
2. Zinc (Zn) = 5.87 mg/lt to achieve value of 5 mg/lt
3. BOD5 = 3,127...
