Questions tagged [filtering]
Filtering is a process in which chemicals are being separated using their different state of matter.
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Removing glass fiber from samples before mass spect run?
I would like some unbiased opinions and knowledge from you all if you have time. I am measuring Phosphorus content of snail and embryo samples. I am only interested in Phosphorous content. I ...
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How to use molecular sieve to remove water
I'm trying to make relatively pure hydrogen via electrolysis of water, but the reaction creates heat and there is a significant amount of water vapor mixed with my hydrogen. Attempts to reduce this ...
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DIY method for regenerating activated carbon in air filters
I am interested in regenerating activated carbon used in general house-hold air filters. I am looking for a sufficiently efficient and easy method to do this in home setting. A little tinkering in a ...
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Removing carbon matter from molten beeswax
In my candle manufacturing process, I melt down used candle stubs, filter the molten wax (heated to ~ $\pu{75^\circ C}$) and use this to create new candles (in addition to fresh beeswax). I'm ...
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Activated charcoal for water filtration: Granules vs Pellets
NOTE:
After further investigation into the producer I found out that granules are made of 100% coconut shell whereas pellets of 100% hard coal.
This renders this question meaningless.
Apologies for ...
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Heat increase after pressure drop in polymer filter
I would like to calculate the heat increase in polymer filter. A polymer filter (mesh size p.ex.20 µm) decreases the mass pressure of the polymer flow.
How it works: The polymer is melted in an ...
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Activated carbon filter desorb smells with dropping temperature?
I have a HEPA filter air cleaner with 16 pounds of activated carbon. It's suppose to last up to years, but my experience is that after a few months (if not weeks) of operation under a light load like ...
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Does wet fabric filter smoke better than dry fabric?
I have heard in various situations people use a wet fabric to breathe better in situations where a lot of fire-based smoke is present (like near wildfires). I wanted to know if there was any truth to ...
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Which water is easier to filter? Rain water or tap water [closed]
I understand the water greatly varies depending on the region and filtration differs as well. Is it better to filter rain water or tap water from contamination like hormones, pesticides, and cloud ...
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Would it make sense to filter air through oil?
I have seen water-based air purifiers, which work by having air bubble through water supposedly leaving water-soluble molecules behind.
I understand that this concept also humidifies the air due to ...
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How do I filter a solution of very fine manganese dioxide?
My synthesis requires potassium permanganate $\ce{KMnO4}$ to oxidize a side alkyl group on benzene ring. The issue is that the brown manganese dioxide $\ce{MnO2}$ is very fine so it is passing through ...
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Is there a filtration method that can be used to separate solids and liquids without filter paper?
I am looking for a filter that can can be reused indefinitely like a strainer with very small gaps. Does such an equipment exist?
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Filter out the SiO2 ultrafine particles from water solution to measure their total weight and size distribution?
The black soil sample mostly contains the organic matter, chalk and quartz.
It is necessary to measure the relative weight of SiO2 particles that are 2.5 μm or less.
To do that the organic matter and ...
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Converting dissolved chromates to solids for disposal
I have 4 liters of electrolysis waste that was used to process stainless steel cathodes.
About half of it was oxalic acid based and the other half was sodium bicarbonate based (currently stored ...
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How to selectively adsorb caffeine on activated carbon filter?
As part of a project on decaffeination methods, I'm looking to see how activated carbon filters can selectively adsorb caffeine in tea and coffee solutions, and avoid adsorbing other taste-giving ...
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