Your membranes may be oxidized as Outlet TDS is more but dP or flow is remain same.
It is advisable to do probing test to check whether all membranes were damaged or not
Krunal Bhosale
http://waterengineer.co.in
All about Water and Wastewater Treatment
normally you can adapt following treatment scheme
Raw water Feed pump --> Sand Filter --> Activated Carbon (optional) --> Cartridge Filter --> High Pressure Pump --> RO Stack
Before Cartridge filter SMBS dosing system to remove Chlorine content, if any
Krunal Bhosale
http://waterengineer.co.in...
there is no issue with low DO level in drinking water, but be sure that their should not be anaerobic bacterial growth in potable water.
Krunal Bhosale
http://waterengineer.co.in
All about Water and Wastewater Treatment
Dear tipp79,
I completely agreed with Mr bimr.
You may be using acid washed Activated carbon.
AC is acid washed because to reduce the Ash content.
Please check AC specification.
Krunal Bhosale
http://waterengineer.co.in
All about Water and Wastewater Treatment
All heavy metal precipitate above pH value of 10.5.
for pH correction Lime is cost effective but it produces too much of sludge and Caustic will be another option for sludge reduction.
Krunal Bhosale
http://waterengineer.co.in
All about Water and Wastewater Treatment
Yes you can. But it is advisable to check the carbon analysis for heavy metal content and accordingly adjust the pH of water.
Here I considered heavy metal removal by pH correction method.
Krunal Bhosale
http://waterengineer.co.in
All about Water and Wastewater Treatment
For methanol removal one can use membrane-based vacuum stripping process. It may be cost effective for operation point of view and it will take small footprint.
Krunal Bhosale
http://waterengineer.co.in
All about Water and Wastewater Treatment