Bio sand filter - Using a 2 litre PET bottle (before SODIS)

[4hardeep4]

whos the guy yelling in the background lol

[MoranGenesis]

how would you set up the bottle, with the straw and everything, im doing a science fair water purification project, and how do you know that it has no germs in at and stuff

this would really help alot

thanks! ^.^

[magnusalexa]

supose river sand would be even better, its finer than most sands

[IntegraGSR5]

me : a cup of water plz.

filterman :coming right up

me : *scratching balls and waiting* how long does it take just to drink cup of water?

filterman: its almost done sir.

me : *bled to death*

[animeworldnr1]

can this also be used for ponds?

[stoutmtc]

I believe you need more like 2 feet of sand/gravel below the biological filter layer (the 'schmutzdecke') to remove the cited 90% of gunk.

But in an emergency, I'd be happy with a 2 liter PETE and some straws and 2 inches of sand (if I didn't have anything better)...

[1dgg9h4dr6ppp8]

One possible phase that could be added would be to incorporate a small plant to grow in the sand, which would provide chemical filtration. The plant would suck nitrates and ammonia from the water.

[YiuTeub]

need alot more sand from what I have seen.

[DomiYeo]

So this system does not remove pathogens or bacteria in the water? Are there any sustainable systems that does do that?

[YiuTeub]

@DomiYeo RO and UV.

[zenrainman2]

Any sand but washed clean please. Actually I have tried river sand only not beach sand...

[mrpepperoriginal]

Beach sand or what tipe of Sand :p???

Please.

[gunveer1234]

good video buta

[cherukunnucool]

can this work with kitchen water which contains soaps & detergents.

also in costal areas water quality is less could this filteration help in

improving water quality?

[zenrainman]

@cherukunnucool this is essentially meant to reduce turbidty in water, especially in flood areas, before one does SODIS to clean the water further.

[64ninjaman]

Put some Clean Gravel to get those big stuff out :3

[R2DTOOD]

its people like you that make a better world

[zenrainman2]

Nice idea. Will try that. Thank you..

[doodadica]

Nice, simple idea. Something you might want to look at is an article you can find if you paste the following into google: "sea shells used to clean up heavy metals"

I don't know whether adding a layer of crushed sea shells would be effective in improving biosand filters to remove heavy metals, but it's something to investigate.

I'm going to post this comment in a few places to help seed this idea, because I haven't seen anything being done with this.

[zenrainman]

@doodadica thank you for the idea. Will definitely try it when possible.

[Plissken07]

So you can even drink water that's been infected with feces of all kind?

[413azol]

I really appreciate your work friend. You are a good one. We need more people like you in this world. I hope there are more people like you.

[zenrainman]

@413azol thanks for that :)

[KarliKawaii]

This biosand system should have had a layer of activated charcoal that has been treated with oxygen to open up millions of tiny pores in the carbon. The pores absorb chemicals that also can be in water, such as city water.The water in your cup could contain colorless and odorless chemicals. o_O!!! OH NOO

[alansang9894]

thanx. i needed help with my science project

[alansang9894]

thanx. i needed help with my science project

[zenrainman2]

yes, sure you can ...

[tr8y]

can u use a straw for the thing that lets out the water

[zenrainman]

Look at the H2S strip test bottles beside the PET bottle. DO you know of them? We check for e-coli using them and use SODIS .

If you have a paper to suggest that this is not large enough to remove bacteria or create a schmutzdecke please forward so that we can improve the system further scientifically.

[Breaker7000]

@zenrainman I think he is just using this small scale to show the concept, and because of that sand/gravel might not be 100% correct.

[ORNonprophet]

What you are showing is NOT an effective Bio-sand filter!!

While this filter may remove turbidity, it is not even close to being large enough to supporting the "schmutzdeke" the biological layer that grows in the sand column that removes most of the harmful bacteria! Please, when it comes to water filtration you MUST know what you are doing so as to not cause harm to people!!!