Activated Carbon - Contact Times
Activated Carbon - Contact Times
(OP)
I am currently looking at a project of treating 140m3/hr through activated carbon for colour removal. The water source is dam water which currently passes through 100micron screen filters.
I have done some bench scale trials and a 4-6 minute contact time "seems" to work, however i would imagine that a visual inspection cannot determine exactly how well it has worked.
What i am after is some reference to suggested AC contact times for various contaminants...i would imagine that the slight colour in this water is the usual humic/fulvic acids present in surface water.





RE: Activated Carbon - Contact Times
There is no substitute for analytical testing; however, visual inspection of samples in a white styrofoam cup in good lighting is quite effective too.
Be sure to incorporate testing for disinfection by-products too.
S. Bush
www.water-eg.com
RE: Activated Carbon - Contact Times
I have sent the samples off for lab testing (colour) i was going to get them done for TOC however there is a 2 week waiting time.
Not sure how long a THM test takes?