Ijo2 - 17-1-2019 at 11:33
A short question: my concrete floor is black and covered with Norrit or activated fine carbon dust.
So far, I use fine sand/dust, detergent and much water to remove it. Because it sticks to your hands, shoes, clothes there was the first step: I
covered the whole floor with paper because the stronger adsorption it prevents me that other rooms get contaminated because it sticks to shoes...
This sounds like a problem: yesterday I spend 4 hours and the lab is still dirty: the floor is still black and I wonder what I can do?
A) Mix it with certain colloids ?
B) Where I can find theoretical data about adsorption to active carbon?
Note: if you think about it then it's graphite like in pencils: so if I can apply the eraser principle then I suppose that there is
no reason to get exhausted from this tuff task.
It really sucks: there is no fresh air but I have a strong vacuum pump.
SECOND DISCUSSION:
I was just looking for another more safe destination then a basement to continue with my hobby. However I live in a city and there is no better or
safer option then a own garage without neigbours or the appartement if I have more knowledge about how to make a DIY cheap fumehood.
But let's focus on the cleaning procedure first: any ideas or experience with this matter?Text
Σldritch - 17-1-2019 at 12:53
Concrete floor you say? Why not just burn it if it is so fine?
Sulaiman - 17-1-2019 at 12:58
Piranha Solution is the only thing that I've used to eat carbon,
but I certainly would not use it in bulk as this would require,
as it is reportedly very dangerous in contact with anything organic.
Detergent will help loosen some but I can't think of anything safe that would remove all.
Do a reasonable cleanup then paint everything ?
EDIT: A pressure washer !
I have a generic (cheap) one and it can take the surface off of concrete using a small jet.
If you do not have one then buy a cheap one - to save many hours of dirty work
Mask required.
_____________________________________________________
My 'Lab' is a well ventilated shed so the first thing that comes to my mind for a basement lab is ventilation,
probably best to plan for a fume cupboard with extractor and just install the extractor until funds and time permit ?
Ample or excessive fire prevention and extinguishing measures.
Regular deliberate evaluation of evacuation procedure and route.
[Edited on 17-1-2019 by Sulaiman]
unionised - 17-1-2019 at 13:03
Paint.
Piranha soln will trash the concrete
CharlieA - 17-1-2019 at 18:06
Powdered charcoal? Can you vacuum it up? Wet vacuum it up?
phlogiston - 18-1-2019 at 03:41
+1 on detergent solution.
just warm water with dishwasher soap is quite effective for cleaning charcoal-contaminated surfaces, with a a stiff brush (or a pressure washer) to
dislodge it from small holes/irregularities.
draculic acid69 - 18-1-2019 at 16:40
Ammonia/Windex gets rid of black fingerprint dust if that helps.fingerprint dust is carbon black right.
[Edited on 19-1-2019 by draculic acid69]