Previous in Forum: Security Against Piracy at Sea   Next in Forum: Monopropellant Powered Free Piston Hydraulic Pump
Close
Close
Close
9 comments
Rate Comments: Nested
Anonymous Poster

Algae in U/G Holding Tanks

07/28/2009 6:00 PM

Hello,

I work for a potash mine and we pump surface water to 1,000 gallon holding tanks underground, to be used for dust control on roadways and at mining face equipment. We are having problems with algae, both causing smell and plugging filters. We are looking at doing some kind of injection pump setup that will either pump chlorine, brine (salt water) or any other solution into the water to help control the algae. I am looking for any information on what pump/system to use, if chlorine or brine is better, how many ppm of chlorine/brine we'll have to use, etc. I would appreciate any information or some where I can go to obtain some info. If you need any more info, or have any questions, feel free to reply.

Thanks

Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Commentator

Join Date: Jul 2009
Posts: 63
#1

Re: Algae in U/G Holding Tanks

07/28/2009 6:13 PM

Try these www.derwentwatersystems.co.uk

Do you mine under the sea?

Reply
Anonymous Poster
#3
In reply to #1

Re: Algae in U/G Holding Tanks

07/29/2009 11:55 AM

Try these www.derwentwatersystems.co.uk

Do you mine under the sea?

No, we mine potash out of Colonsay, SK, Canada. The water is just pumped from an open surface pond to u/g holding tanks.

Reply
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: Algae in U/G Holding Tanks

07/29/2009 5:03 AM

Chlorine. Brine must be highly concentrated to be effective, whereas a free chlorine level of 1ppm will keep your water clear.

__________________
If only you knew the power of the Dark Side of the Force
Reply Score 1 for Good Answer
Anonymous Poster
#4

Re: Algae in U/G Holding Tanks

07/30/2009 1:34 AM

Hello,

Chlorine is definitivly the best solution, but keep in mind that it must be mixed well with the water in the tank and also that it will stop being active after about 2 - 3 days (depending on temperature and organic content of the water). 1 ppm is good to start with - just make yourself aware of any environmental restrictions regarding the use of Chlorine.

I suggest to either add the chlorine into the filling up line for better mixing or if you have enough flow through in the tank you might also think about using those tablets that are used in swimming pools.

Good luck

Reply
Guru

Join Date: Feb 2006
Location: Piney Flats, Tennessee
Posts: 1740
Good Answers: 23
#5

Re: Algae in U/G Holding Tanks

07/30/2009 4:11 AM

If the tank is kept under pressure alge growth is reduced and clorine works much longer.

The lack of pressure in the tank allows the alge to grow fast. I doscovered this on a sail boat years ago. Adding just 20lbs of pressure to the tanks cut the alge growth and we used a lot less clorine too.

__________________
If you never do anything you never have problems.
Reply
Guru
Panama - Member - New Member Hobbies - CNC - New Member Engineering Fields - Marine Engineering - New Member Engineering Fields - Retired Engineers / Mentors - New Member

Join Date: Dec 2006
Location: Panama
Posts: 4273
Good Answers: 213
#6

Re: Algae in U/G Holding Tanks

07/30/2009 10:58 AM

I use ozone to control algae in stored water. Set up a recirculation system, inject ozone into the recirculation line. Less environmental impact than chlorine or brine, especially if the water escapes to the aquifer.

Reply
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
#7
In reply to #6

Re: Algae in U/G Holding Tanks

07/30/2009 11:03 AM

UV will also do the trick, and you don't need to worry about escaping ozone.

__________________
If only you knew the power of the Dark Side of the Force
Reply
Active Contributor

Join Date: Sep 2007
Posts: 20
#8

Re: Algae in U/G Holding Tanks

08/03/2009 8:54 PM

treat the pond before drawing the water into your holding tank.

see www.killlakeweeds.com

Reply
Guru
Popular Science - Weaponology - bwire Hobbies - Car Customizing - New Member

Join Date: Dec 2007
Location: Upper Mid-west USA
Posts: 7498
Good Answers: 97
#9

Re: Algae in U/G Holding Tanks

08/03/2009 9:12 PM

Add potash to water increasing the alkalinity above that which supports the growth of algae.

__________________
If death came with a warning there would be a whole lot less of it.
Reply
Reply to Forum Thread 9 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

_Leon_ (1); Anonymous Poster (2); bwire (1); cwarner7_11 (1); dadw5boys (1); DVader1000 (2); maxig (1)

Previous in Forum: Security Against Piracy at Sea   Next in Forum: Monopropellant Powered Free Piston Hydraulic Pump

Advertisement