×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Printing Ink Waste Treatment Technology

Printing Ink Waste Treatment Technology

Printing Ink Waste Treatment Technology

(OP)
Dear all,
May I know what is the most common and efficient technology used to treat water based printing ink?

Thanks.
Regards,
SL.

RE: Printing Ink Waste Treatment Technology

Most printing inks are make of finely divided suspended solids.  Carbon black is not uncommon.  Some iron compounds are also used.  There are many other formulations.  

Depending on many things (exact formulation, quantity, whether water based, to name a few), my first attempt would be by filtering.  Other approaches would be boiling, coagulation via addition of flocculants, and coagulation via change of pH.

Rots of ruck.

RE: Printing Ink Waste Treatment Technology

Dear SL,
It is not an easy problem to solve. The major complication is that the pigments used for the inks are probably too small to be filtered out directly and very diluted.

Additionally it is very likely that you have dispersants worsening the problem. Depending on the components you may have to choose your solution. Floculants or precipitation may help you as Elguero mentioned, afterwards filtration could be applied.

RGS

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources