Previous in Forum: Aluminium with Iodine   Next in Forum: Latex Paint Overspray
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rating: Comments: Nested
yatin
Member

Join Date: Sep 2011
Posts: 6

Chemical to Stop Reaction

09/20/2011 11:08 PM

I have DM plant & we regularly do re-genration at that time hcl & naoh is mix in ETP pit at that this both create salt.I want to know is there any chemical which stop rection between this chemical?
Register to Reply
Pathfinder Tags: yatin
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: yatin

09/21/2011 4:05 AM

DM - demineralisation plant?

hcl - hydrochloric acid?

naoh - sodium hydroxide?

ETP - effluent transfer pit?

If so then no, there isn't any need to stop this reaction.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
DVader1000
Guru
Engineering Fields - Environmental Engineering - New Member APIX Pilot Plant Design Project - Member - New Member

Join Date: May 2007
Location: Anywhere Emperor Palpatine assigns me
Posts: 2774
Good Answers: 101
#2

Re: Chemical to Stop Reaction

09/21/2011 7:39 AM

No. Then again, why do you want to stop the reaction?

__________________
 If only you knew the power of the Dark Side of the Force
Register to Reply
Codemaster
Guru

Join Date: Jul 2005
Location: Stoke-on-Trent, UK
Posts: 4496
Good Answers: 137
#3

Re: Chemical to Stop Reaction

09/21/2011 11:38 AM

If you put both streams in the ETP there's no way to stop them reacting. These are waste streams from regen of the resin, containing excess acid and caustic. Usually it's better to mix them and let them neutralise each other, as this reduces the quantity of chemical needed to bring the pH close to 7 for discharge. If you have a use for what's left of the acid and caustic you could keep the streams separate, but they will contain other salts from the regen.

Codey

__________________
 Give masochists a fair crack of the whip
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#4
In reply to #3

Re: Chemical to Stop Reaction

09/22/2011 6:24 AM

Well said. The more neutral the effluent, the better.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Register to Reply
Have a Different Question?
4 comments
Copy to Clipboard

Users who posted comments:

Codemaster (1); DVader1000 (1); PWSlack (2)

Previous in Forum: Aluminium with Iodine   Next in Forum: Latex Paint Overspray

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Chemical & Material Science:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (69 right now)
Show Members
Advertisement