> temp > à-trier > bacterial-oxidation-of-urine-to-nitrates-cody-slab

Bacterial Oxidation of Urine to Nitrates

Cody'sLab - 2024-10-30

I test out a system to convert urea (in urine) into nitrate via bacterial oxidation. This is primarily for converting waste to usable fertilizer but could have other uses.

@icouldnotplanthis2152 - 2024-10-30

Knowing Cody, I was anxiously waiting for him to take a sip.

@MagralhoPT - 2024-10-30

Same! Glad I was not the only one being like that.

@Just_Sara - 2024-10-30

No lie, I kind of thought he was gonna, and was afraid.

@LongerThanAverageUsername - 2024-10-31

I was hoping he’d cut to him drinking a liquid from a cup at 4:28 with a thumbs up 👍 and then say “now to test the water”

@isaace436 - 2024-10-31

Should have had a cup of lemonade a cut swap drinking it :p

@TonzieNorman - 2024-10-31

Nasty lol

@halieus56 - 2024-10-30

How much do you like Cody’s Lab?
“I immediately watched an entire video about a pee tower.”

@Just_Sara - 2024-10-30

A PEE TOWER

@TheBackyardChemist - 2024-10-31

In Disco Elysium two old men are found playing pee tank

@ZennExile - 2024-10-31

on a platform where the last 25% of any given upload is viewed by almost no one, I gobbled up every last drop of this pee video without tabbing away or even looking at my phone.

@rnedisc - 2024-10-31

And it was unironically very interesting as well!

@leviblack7036 - 2024-10-31

Gobbled up or drank it down​? @@ZennExile

@snosibsnob3930 - 2024-10-30

The most ominous Cody title I’ve yet gotten in my notifications

@DaVinciFry - 2024-10-30

🐠 ☘️

@TedLJones - 2024-10-30

Is it wrong tho?

@codefeenix - 2024-10-31

this is not the most ominous any title, just the most ominous cody title?

@sylvansmithy5262 - 2024-10-31

I assumed from the title he was going to say he got mercury poisoning, so this is better lol

@__gavin__ - 2024-10-31

Thank god for DeArrow, never have to worry about this kinda stuff

@videogamescoverftw - 2024-10-30

This gives off big "They took my video down by force so I'll repost the process without explicitly stating what I'm going to use it for" vibes

@jonathancheesman8385 - 2024-10-31

Was this an older video or a newer one? I must have missed it.

@madengineer9072 - 2024-10-31

Pee to pew pipeline

@wobblysauce - 2024-10-31

drinking water...

@Just_Sara - 2024-10-31

@@videogamescoverftw The moment he said there was pee, we all knew. I actually started laughing out loud at that point.

@Just_Sara - 2024-10-31

@@jonathancheesman8385 it was several years ago.

@xjunkxyrdxdog89 - 2024-10-30

I just realized I've been watching this maniac for over a decade 😂
Good times and good content.

@stewiiieeeeeee1839 - 2024-10-31

Right? It's crazy I've literally never met the guy but I feel like he's an old friend

@anttihuttula6547 - 2024-10-31

​@@stewiiieeeeeee1839that is a sign of mental illness.

@wytrzeszczwytrzeszcz7739 - 2024-10-31

I bet since he did some creazy stuff over the years God himself was like... Nah I know it could kill him but I want next episode

@draco18s - 2024-10-31

Not to mention that he showed up out of nowhere and staretd posting good sciency videos that got immediate traction.

@morgandamm3954 - 2024-11-05

me too:)

@jhonbus - 2024-10-31

Well NileRed is now on notice that his title of "YouTube's foremost piss chemist" could be under threat

@zanw.awesome3102 - 2024-10-31

I was thinking exactly the same. But knowing Nigel, he'll be relieved to have lost that title to our Cody here.

@pmccoy8924 - 2024-10-31

Quite the fancy and massive piss jug, tbh.

@cjb89 - 2024-10-31

He still is the king of new, never before opened bottles of anal lube, so there's that.

@williamkane - 2024-10-31

@@pmccoy8924 "All produced from my morning pee!"

@pmccoy8924 - 2024-10-31

@ yes. Thats why we love this savage.

@cinderwolf32 - 2024-11-02

Some of us remember. Some of us were confused when we couldn't watch it again, and later understood. Some of us are happy that this is back.

@billcypher8563 - 2024-11-04

i was there.... 3000 years ago...

@scottpeterson8591 - 2024-10-30

Numerous times during this video, I was concerned he was about to drink it.

@stianh6164 - 2024-10-31

He would never filter it then.

@garyv2498 - 2024-10-31

Okay good, it wasn't just me.

@Stevie-J - 2024-11-01

Don't worry, it's just an early prototype Fremen stillsuit from Dune. He won't drink it until many design iterations later

@rw-xf4cb - 2024-11-02

He's in the desert so would just drink from the source

@roflmfdo - 2024-10-30

Expected him to taste the sample any second

@PassifloraCerulea - 2024-10-31

Definitely wondered if he was about to Bear Grylls it for a moment there 😅

@jasonhildebrand1574 - 2024-10-31

"Some of the best charcoal I've ever made ! " - Cody

@peterelwert5598 - 2024-10-31

Years ago (maybe 200) doctors tried to see what urine tasted like (if it was sweet) to determine whether someone had diabetes

@tissuepaper9962 - 2024-11-01

​@peterelwert5598 diabetes is one of the first documented illnesses because of this. very ancient method of diagnosis, like 5000+ years old.

@Just_Sara - 2024-10-30

Honestly, Cody, right after you reflected on your life choices, and right before you said "it's a wonder I'm still single!" my answer was that I thought "what a wonderful life!" I know not everything is in fact wonderful in ANY life, but your life sounds pretty cool to nerds like us.

@0_1_2 - 2024-10-31

Are you a woman? Would you like to volunteer to be his? 💍

@erinmac4750 - 2024-10-31

Truth! I've thought that often while watching his vids. I get a big kick out of the variety of projects and ways to use practical things different from intended purpose. Plus, I'm a geo-nerd, and "let's try this to see what happens" person, so in my book he's living the dream.🍀

@smoothwalrus9354 - 2024-10-31

A lady appeared in a couple of chicken hole base videos a while back, wondered if she was still in the picture. Guess not.

@gerbalblaste - 2024-10-31

There are definitely many similarly weird ladies out there who would be incredibly excited about this sort of lifestyle.

I've been around enough PhD students to know that beyond any doubt.

@haileycollet4147 - 2024-10-31

Can confirm

@phoenixlord2017 - 2024-10-30

What did one fish say to the other fish?
"Alright everyone, Cody here"

@LordDragox412 - 2024-10-30

There's plenty of fish in the sea, but only one of them is making fertilizer out of their urine.

@thomasyates3078 - 2024-10-31

Are you sure you know how to drive this tank?

@Meanie010 - 2024-10-31

"Welcome back to Cody's Tank..."

@screambmachine - 2024-11-02

"Alright everyone, Cod here"

@valen94500 - 2024-10-31

One amazing thing that Cody thought me is that random scientific approach in vastly different subject can have unexpected link.
This video shows an unexpected connection between chemistry, fish keeping and managing waste in an autonomous colony.
Mushroom growing, fish keeping, charcoal making, metal refining and so much more is a weird thing for a single person to do, but you never know how knowledge can transfer between various hobbies.

@LunaticCharade - 2024-11-08

Aaand also very funny and educational etc, I think it's one of life's greatest things where it just keeps going. You keep learning and getting new ideas and insights and see connections 😊

@Psyden5757 - 2024-10-30

He's finally gone mad. he's the fish.

@LordDragox412 - 2024-10-30

There's still some sanity left. I was afraid he's gonna say "So... cheers!" at 8:58 but thankfully, this isn't tasty mercury and thus didn't require a taste test.

@DejonckheereWard - 2024-10-30

Clearly gone fishy :p

@Hobypyrocom - 2024-10-30

@@LordDragox412 or cyanide or heavy water...

@Pooopers - 2024-10-30

the pee pee science is a tragic red flag indeed xD

@Pooopers - 2024-10-30

erm yellow*

@parshimers - 2024-10-30

Landlords And Public Health Agencies Hate This One Weird Trick

@Oniichanani - 2024-11-01

and aquarium water-column fertilizer companies

@oldschoolman1444 - 2024-11-02

I just pee directly under my bushes, so much easier! 😊

@FeS2-pyrite - 2024-10-31

Cody, you are genuinely the coolest person living. You never cease to impress me.

@jandetavernier9231 - 2024-10-30

It's a wonder I'm still single ... hahaha

@minerscale - 2024-10-30

I can't believe a hottie like Cody is still up for grab. Ladies get yourself a man who processes his own urine into industrial chemicals.

@DarkShiftMusic - 2024-10-30

I was lookin' for this comment haha 10:40

@matman7691 - 2024-10-31

Had the same thoughts when I saw the chainmail anti-covid suit, I approve but one has questions!

@SamuelWhitlock - 2024-10-31

It's a crying shame all his viewers are male lol

@trulyinfamous - 2024-10-31

He just hasn't met anyone capable of getting anywhere near his power level yet. If he finds someone who could even match his power, the duo might just take over the world and I'm rooting for it all the way.

@ericgather2435 - 2024-10-30

Always a good day when I listen to Cody's voice and his train of thoughts

@Meg_A_Byte - 2024-10-30

Ah yes, the long awaited sequel to a Beatles classic! (original title of the video was "I am the fish")

@rhouser1280 - 2024-10-30

Kukukachoo

@erikj.2066 - 2024-10-30

Let her Pee?

@timothyvanderschultzen9640 - 2024-10-31

I am the walrus

@likebot. - 2024-10-31

that's where I went when I read the title.
Maybe Cody will do the whole White Album.

@ThePinkerton1776 - 2024-10-31

The walrus was paul

@sandymans7640 - 2024-10-30

Fish looks over to other fish with full chain mail

@tjfreckles1995 - 2024-10-30

The other fish are actually wearing scale mail

@MattIsTheCat - 2024-10-30

@@tjfreckles1995And I would assume the snail is wearing snail mail.

As for the can of Luncheon meat, I would guess it is wearing Spam mail.

@MattIsTheCat - 2024-10-30

@@tjfreckles1995The electronics are wearing e-Mail.

@Erewhon2024 - 2024-10-30

Placoderm?

@ZworzeNagger - 2024-10-30

Never change Cody. Great content. Love from the Netherlands!

@TheA4knight - 2024-10-30

The piss pot purifier:

@alfredosoup - 2024-10-31

A genuine moment of silence and recognition for our science Youtubers. These guys keep pushing the boundaries of what we currently know and understand, and they consistently provide not only us- but the entire world with new ways to apply various sciences to our daily lives and infrastructure. ❤

@michaeltalaganis6518 - 2024-10-31

For a future iteration you should add some nozzles to the pipe on top to increase spray surface area and oxidize faster. Maybe even a grid of pipes for more spraying spots too. Keep up the amazing work! Get projects done! Stay awesome

@VikOlliver - 2024-10-31

Having run a spray aeroponics rig, I can see why he doesn't. It'd be an aromatic bugger to unblock...

@bradshawford575 - 2024-10-30

you can get liquid ammonia and nitrate tests that are much more accurate if you want specific values

@dienadel30 - 2024-10-30

I love this ! I used to do a fishless tank cycles just by added ammonia to my empty water filled tank and just wait with the filter running testing for nitrites then nitrates and continue dosing with ammonia into it until it would remove 1 ppm of ammonia in 24 hours then do a 50 % water change and stock with fish :)

@codefeenix - 2024-10-31

do you tense?

@triangleenjoyer - 2024-11-08

If anyone is confused, the title of the video used to be "I am the fish." It was changed, and now that title is being used for a patron only version of this video.

@samditto - 2024-10-30

I been pissing on plants for years and i have not died yet

@samditto - 2024-10-30

Never forget: piss has value and always has

@theCodyReeder - 2024-10-30

You probably spread it around and it gets diluted with rain. My system is relatively small and sealed.

@MWilk098 - 2024-10-30

@@theCodyReederread again

@arnoldmmbb - 2024-10-30

​@@theCodyReederI use half a liter of urine diluted in 5.5 liters of water for my veggies and they love It

@timothyvanderschultzen9640 - 2024-10-31

​@@MWilk098Sam is tough.

@JohnDoe-ib3hr - 2024-10-31

Hi Cody, I'm working on a selective breeding project involving Triops Cancriformis. From everything i'm learning about them in terms of their radiation resistance, rapid life cycle, storable eggs, adaptability to different oxygen levels and extremely easy care I reckon they'd be ideal for a martian aquaponics setup. They aren't palatable but they are edible and if you were to keep them in low temperatures post hatching say 3-10C, then they live much longer and grow considerably larger too.

@Zachmman1997 - 2024-10-31

Ive been watching for around a decade and I still cannot guess what the next video will be about. Seeing a new upload in the feed is always a welcome surprise. Keep it up Cody, I hope to continue watching for decades to come!

@teagancombest6049 - 2024-11-01

Cody this is probably my favorite of your experiments that you have done so far as it directly relates to my work selling aquarium fish. We would probably call what you've created a trickle tower in the industry, and that is the type of filtration we use to most efficiently oxidize ammonia to nitrates, while a submerged or wet/ dry filter may also offer some anoxic nitrification and produce nitrogen gas with different species of bacteria. I'm really interested in using something like this to explain the denitrification process to my customers (and even some of my coworkers!) who seem to believe it is some mystical process that requires praying to the bacteria gods and sleeping with aquarium gravel under your pillow.

A few notes from experience: nitrosomonas and nitrobacter species will generally operate and live within the liquid temperature range of water, they are able to go down to 0C and up to 100C without the whole population dying. They do operate best in the range of 72-86F (sorry for mixing units) with activity increasing with temperature up to the upper 80s where they will drop off slightly. You are also experiencing what many fish tank keepers experience after they have not regularly cleaned their tank of fish waste, the organic acids produced are buffering your pH down and lowering the efficacy of your bacteria's chemical reactions. In fish tanks we would prescribe regular water changes with KH buffered water, usually using sodium or calcium bicarbonate as the buffering agent but sometimes aragonite is also used in the form of "crushed coral" products. The crushed chalk at the end is a very similar idea.

This video has given me a lot to think about re: the nitrogen cycle process...

@ProSureString - 2024-10-30

He is the fish

@jacobobos - 2024-10-30

HE IS JUST A FISH!

@Blayzn18 - 2024-11-01

It's hard to find good informative entertainment anymore. Cody does it! Thanks!!

@SethCrowderMusic - 2024-10-31

"its a wonder i'm still single" 😂 bless your heart cody.

@yashchikorde - 2024-11-10

The only famous youtuber I know that doesn't include ads in his videos, very very rare these days.

@TheVerendus - 2024-10-30

Cladistically speaking, you are a fish!

@benjamin_markus - 2024-10-30

finally someone said it

@giuseppebonatici7169 - 2024-10-31

almost everything is a fish if you are taxonomically correct.

@Thom4ES - 2024-11-02

My dive bladder is acting up

@EricMickelsen - 2024-11-02

​@@giuseppebonatici7169bacteria is bigger than fish, and thus our tank is kept smelling fresh

@Coldkill2001 - 2024-11-05

This channel has evolved in such an interesting way

@stephensteele2844 - 2024-10-30

You know I used to think I was the fish and then Cody was like no sir

@tedarcher9120 - 2024-10-31

We are all fish, biologically speaking

@johnbennett7099 - 2024-11-06

This was excellent, don’t do yourself short on the treatment method Cody, it will take time for the seed to colonise your char. I truly hope this channel survives America being made great again-again

@craycraycat4917 - 2024-10-31

How is the finished product extracted? Do you just leave the barrel to react for a few days and collect in batches?

@theCodyReeder - 2024-10-31

I was thinking of having it overflow to the next stage and then eventually to the algae farm.

@SirBoden - 2024-10-31

Logic checks out

@kenlavinlol - 2024-10-31

@@theCodyReeder Nice. I'd love to see an update to the algae farm!

@ColCurtis - 2024-10-31

You need to incorporate a urinal into the barrel

@teagancombest6049 - 2024-11-01

@@theCodyReeder Yes the output of this is excellent fertilizer!

@brittonbowen7474 - 2024-11-01

The ending where you were just building it was delightful!!

Great video Cody!

@CarmichaelsRestoration - 2024-10-31

We want you to be successful Cody, I watch all your ads and like all your videos. Hopefully Youtube treat you well.

@almosthuman4457 - 2024-10-31

thanks for doing what you do. for some reason the way you present your experiments makes me remember the principles behind them.

@guiorgy - 2024-10-31

FYI, assuming there's enough organic mater to feed on, if the bacteria don't have enough oxygen, they will start to break down NO3 to oxygen and nitrogen gass, where nitrogen would be lost to the atmosphere (this is actually exactly what we do when treating waste water), so if the goal is to collect nitrogen, ideally the bacteria should have plenty of oxygen and never feel the need to search for alternative sources of oxygen

@theCodyReeder - 2024-10-31

good tip

@stickerbeat - 2024-10-31

Another thing to remember is that nitrifying bacteria like the ones in wastewater treatment plants are usually autotrophic meaning they need bicarbonates as their carbon source.
If you stabilized the pH with let's say sodium hydroxide the bacteria still wouldn't grow because they'd run out of carbon to make more of themselves

@teagancombest6049 - 2024-11-01

Hint: cheap alcohols are a great liquid carbon source ;)

@teagancombest6049 - 2024-11-01

@@stickerbeat Yep, in fish tanks we buffer with sodium or calcium bicarbonate, or aragonite which is a species of calcium carbonate. Reef tank keepers will even add liquid carbon sources like vodka, vinegar, or more formulated products to feed the bacteria and then use a protein skimmer to remove the bacteria directly from solution as a de-nitrification method.

@css815 - 2024-10-30

This is such a cool concept that could have such an amazing use in the agricultural sector.

@alexoja2918 - 2024-10-31

Out of all the piss buckets I've seen yours is the most advanced.

@nochan99 - 2024-10-31

Knowing Cody, I was sitting on the edge of my seat, scared shitless he would take a little sip. Great video!

@neffk - 2024-10-30

One of the old-school ways to get useful nitrates is to spray urine on a loose pile of straw. If done correctly, the surface area of the straw pile would host bacteria and evaporate the water and form nitrate crystals. These crystals could be collected by gently shaking. Further processing is needed for making gun powder. My understanding is that one of the scandinavian countrie's king required subjects to pay tax partially in saltpeter so this sort of operation was going on somewhere on every farm.

@abhimaanmayadam5713 - 2024-10-31

He did that AGES ago. One of his earlier attempts of making nitrate.

@Sharklops - 2024-10-31

A long time ago he actually did exactly that in a video, and if I recall correctly he took the nitrate crystals and made gunpowder from them. Dude is a legend

@ubimumu - 2024-10-31

I remeber that video, w recall

@GarrettDore - 2024-10-31

Hypothetically all this charcoal is going to be saturated with nitrate

@PKMartin - 2024-10-31

Cody did exactly that, made actual powder from it and hand loaded a single rifle shell with it, so of course YT took the video down. This video is about the closest you can get to the original source material without being censored

@ithulah - 2024-10-31

Nice! I've always transferred fish filter media to jump start a new tank, but never for personal waste processing. 😅 I love seeing all the interesting things you develop.

@Erewhon2024 - 2024-10-30

People who do aquaponics often start the nitrogen cycle in their biofilters, before adding fish, using aged urine. If the bacteria are numerous and detoxifying ammonia before the fish are introduced, it is less likely for the fish to suffer or die from poisoning by their own wastes.

@ke9tv - 2024-10-31

The last time I cycled in a fish tank, I used household ammonia, rather than having to let pee rot.

@teagancombest6049 - 2024-11-01

There are much better bacteria-starter products nowadays than human urine, especially into a system that people will be eating the output of. Human urine can contain all sorts of contaminants and pathogens.

@SpaceZ_eus - 2024-10-31

Been watching you as long as I've had a youtube account and I take lots of inspiration from you in my projects! Thank you for the most amazing content I know