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

Related Articles


Removal of H2S (hydrogen-sulfide) from water

Removal of H2S (hydrogen-sulfide) from water

Removal of H2S (hydrogen-sulfide) from water

Hi everybody, I have to ask for help, once again.
I have to design a process for H2S removal in a break-pressure chamber that is part of a water supply system. I've attached a cross-section of a chamber, with all the pipelines, for you to get a picture of it.
The problem is: the only thing I can change inside the chamber is pipes, which means no additional equipment may be installed. This leads to a conclusion that aeration is the only feasible process. I don't have the data about the H2S concentration, only pH which is 7.85 on average. I am aware that in order for the aeration to be efficient, pH should be around 6, so I guess I would have to include some upstream acid dosage, right?
As for the system itself, I see two possible solutions: upward or downward dispersed flow of water through nozzles (see attached pictures 1 and 2), in order to make as much contact surface between water and air as possible.

Thank you in advance for your opinion, suggestions, advice, etc.


RE: Removal of H2S (hydrogen-sulfide) from water


Not much point to comment on this application since the amount of H2S is unknown. A complete water analysis is also necessary, if you would like to know the amount of acid required.

What is the purpose of the "break tank"?

H2S is a toxic gas. Is there exposure to personnel?

RE: Removal of H2S (hydrogen-sulfide) from water

If I understood it correctly the purpose of a break-pressure chamber is to reduce the pressure in a pipeline to atmospheric, i.e. hydrostatic pressure. I am not quite sure if this is the correct answer.
The chamber is on a hill, quite remote, and there is no danger of exposure.
Someone noticed a bad odour, and concluded that the source is H2S, and now they want it out of the water. It is up to me to propose the solution. I will ofcourse request for a detailed analysis of water, but I have to propose a solution.
Please give me some guidelines. Am I on a right path?

Thank you

RE: Removal of H2S (hydrogen-sulfide) from water

Bimr... looking at the first few pages, that is a great resource of information. Thanks.


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!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close