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View Poll Results: Do you reclaim you waste water from cleaning up?
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Old 11-11-2011, 06:45 PM   #1
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Default Flocking paint waste water

First, I know the question should be "your" not "you waste water..." Sorry but I can't edit it.

I just want to ask, how many of you flock your paint waste water? Do you use aluminium sulphate to do this? Have you found that if you make the ph slightly more alkaline by adding bicarbonate soda you get better flocking from the aluminium sulphate?

One problem with bicarbonate soda is that it tends to foam if you add too much as it reacts to the aluminium sulphate. I was told years ago you could use a little sodium hydroxide but I am concerned it is a bit dangerous.

In Australia there are at least two companies that sell reclaiming kits. My students can't get them in the Pacific so I am experimenting with my students to find sustainable options that are affordable. The reefs can get a hard time from the heavy metal in paint waste here so I think it is an important thing for me to get right.

http://www.aptc.edu.au/news/Painters...en_190411.html
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Old 11-11-2011, 07:17 PM   #2
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I have been wanting to start since our shop is not on sewer but septic. Check out this link. There is a second chemical that looks to avoid pH issues. I suspect the last two chemicals in this article are the two the certain companies sell with their systems.http://www.ncbi.nlm.nih.gov/m/pubmed/15328698/
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Old 11-11-2011, 08:45 PM   #3
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I have been wanting to start since our shop is not on sewer but septic. Check out this link. There is a second chemical that looks to avoid pH issues. I suspect the last two chemicals in this article are the two the certain companies sell with their systems.http://www.ncbi.nlm.nih.gov/m/pubmed/15328698/
Dean, that link is great! I really appreciate you getting that for me. I might do some experimenting and see what I get.

The availability of aluminium salphate is a big plus, I may not be able to get the other chemicals so easily. I will see how I go.
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Old 11-11-2011, 08:52 PM   #4
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I wanted to do those experiments this past summer, but just did not have time. This year did not go as planned. If you beat me to trying them out, let me know the results.
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Old 11-11-2011, 09:56 PM   #5
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By the way, I think you mean floccing, not flocking, and before Work or NEPS says it you do not mean [email protected]$king either.
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Old 11-11-2011, 10:11 PM   #6
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Michael,
I have been using the Dulux envirowash. Its a good unit but very impracticable carrying it in the van. Its just too big, so I keep it at home and wash up my workers brushes and rollers there every evening after work.

Something thats an issue is the left over sludge. I pump it into a paint drum but its still an issue getting rid of it.
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Old 11-11-2011, 10:21 PM   #7
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Michael,
I have been using the Dulux envirowash. Its a good unit but very impracticable carrying it in the van. Its just too big, so I keep it at home and wash up my workers brushes and rollers there every evening after work.

Something thats an issue is the left over sludge. I pump it into a paint drum but its still an issue getting rid of it.
How much is the chemical cost? I read somewhere the companies estimates are low for real world chemical usage.
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Old 11-11-2011, 10:26 PM   #8
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I hate to be the wise guy (ya right, I LOVE to be he), but can you educate me (and the others to timid to ask) what the flock is floccing ??

thanks



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Old 11-11-2011, 10:32 PM   #9
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I hate to be the wise guy (ya right, I LOVE to be he), but can you educate me (and the others to timid to ask) what the flock is floccing ??

thanks
http://lmgtfy.com/?q=Floccing
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Old 11-11-2011, 10:41 PM   #10
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Quote:
Originally Posted by DeanV View Post

WISE guy !

At least give me a site that explains it for dummies. That google search was like walking into a Korean restaurant and no menu was in English.



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Old 11-12-2011, 12:24 AM   #11
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Quote:
Originally Posted by Brian C View Post
Michael,
I have been using the Dulux envirowash. Its a good unit but very impracticable carrying it in the van. Its just too big, so I keep it at home and wash up my workers brushes and rollers there every evening after work.

Something thats an issue is the left over sludge. I pump it into a paint drum but its still an issue getting rid of it.
I started with another unit about 6 years ago before the envirowash. I got the envirowash for Fiji but had trouble keeping up to the chemicals, I also felt this was not a sustainable solution for Fiji as people could not afford that unit that alone get one.

I am trying to find a solution for the Pacific that painters can afford to do themselves. As far as the waste, when you think of it, it is premium product mostly titanium dioxide and other very expensive materials such as heavy metals. When mixed with cement it makes a very strong concrete that is light weight. I think it is a shame to waste it.

Some ideas I have seen or heard of are:
  • Mix with cement, pour into a mould and make gnomes or statues
  • Mix with a binder such as bondcrete or an untinted nuetral based exterior acrylic and make a membrane paint to fill unpainted concrete block walls
  • Mix with cement and make a trowel on render
  • Mix with cement and make pavers
  • Mix with cement and pour into block walls as block fill
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Old 11-12-2011, 12:27 AM   #12
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Thanks Dean for the correction, I am in the process of creating a video on it, could have been embarrassing.

For the record, though I value the correction it still makes you a smart ...!
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Old 11-12-2011, 12:30 AM   #13
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Quote:
Originally Posted by DeanV View Post
Dean that is Cool, how do you do that??? That could be great for illustrating search topics for my students.
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Old 11-12-2011, 12:47 AM   #14
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http://lmgtfy.com/?q=waste+paint+floc
I never heard of floccing, but it sounds interesting and important to the environment.

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Old 11-12-2011, 02:57 AM   #15
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I Also use an envirowash system
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Old 11-12-2011, 04:18 AM   #16
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Great set up Ben, how do you keep your sink so clean? Mine looks pretty scungy.
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Old 11-12-2011, 08:58 AM   #17
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My spelling will be wrong on some of this, FYI. Floccating agents are mixed with forty wash water and cause the suspend paint particles/ solids to precipitate out and fall to the bottom of the container. The clear water can then be siphoned off and is safe for disposal. The sludge at the bottom can be scraped up, dried and tossed in the trash, or a use found for it.

For the google thing, go to www.lmgtfy.com. Stands for Let Me Google That For You.
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Old 11-12-2011, 12:09 PM   #18
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Quote:
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I Also use an envirowash system
holy friggin guacamole... if i used that system i would charge quadruple...oops i just outed myself
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Old 11-13-2011, 02:55 AM   #19
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holy friggin guacamole... if i used that system i would charge quadruple...oops i just outed myself
A lot of painters in Australia are marketing themselves as greenpainters. They are doing okay out of it.

I was from a drought stricken area of Queensland Australia. Reclaiming water was a big draw card on tendering for a contract, and many larger companies had it as a requirement to get the contract.

Most painters are heading down this road in Australia.
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Old 11-13-2011, 10:53 AM   #20
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Pacificpainters,

Because of your post and DeanV's explanation of what floccing is, I'm going to initiate a program at my place of work.

Currently, we have two separate 55 gallon drums that are for oil and water base paints.
A waste management service picks it up on a scheduled basis. Since we are generating more water base paint waste these days, I think floccing may be the way to go. I'll have to compare the cost of chemicals and floccing equipment to the waste management service fees.

Thanks
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