> chemistry > divers-inorganiques > 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.

@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

@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

@xjunkxyrdxdog89 - 2024-10-30

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

@Zefftodeath - 2024-10-31

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

@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:)

@allanshpeley4284 - 2025-02-20

@draco18s How else does one show up on YouTube?

@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.

@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.

@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.

@Gary-V715 - 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

@thrive420 - 2024-11-16

I was right there with ya....especially when he lifted the cup at one point, as if to say Cheers.

@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

@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! 😊

@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.

@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...

@Chranat0r - 2024-11-13

I'm really surprised how many people remember that years old video

@GabrielsLogic - 2024-11-18

We've all been watching for a looong time I guess haha

@GabrielsLogic - 2024-11-23

@Apocaloptimisto 😂

@wellwelp313 - 2025-01-30

Finally, after 2000 years...

@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.

@DjWarrrrrd - 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*

@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.

@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.

@Meanie010 - 2024-10-31

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

@screambmachine - 2024-11-02

"Alright everyone, Cod here"

@FeS2-pyrite - 2024-10-31

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

@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

@MattThe-Cat - 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.

@MattThe-Cat - 2024-10-30

@tjfreckles1995The electronics are wearing e-Mail.

@Erewhon2024 - 2024-10-30

Placoderm?

@Nofluxx - 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 😊

@TheA4knight - 2024-10-30

The piss pot purifier:

@lexJaz - 2024-10-31

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

@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?

@TheMightyTimmy - 2024-10-31

I am the walrus

@ThePinkerton1776 - 2024-10-31

The walrus was paul

@jerry3790 - 2024-10-31

@ThePinkerton1776Paul is dead man, miss him miss him miss him

@yashchikorde - 2024-11-10

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

@LokiScarlet - 2024-11-28

If he ever takes a sponsor, you know either he sold out or he's deadass madly in love with whatever company.

@yashchikorde - 2024-11-28

@LokiScarletWasHere  true

@Mrbg123 - 2024-12-27

@LokiScarlet I’d say it depends on the product but I’d understand and not fault him if he needed the money and it was either that or not being able to upload anymore. As long as it’s not a crypto coin or other scam then you can’t really blame a man for wanting to save enough for retirement or provide for his family.

@ProSureString - 2024-10-30

He is the fish

@jacobobos - 2024-10-30

HE IS JUST A FISH!

@SethCrowderMusic - 2024-10-31

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

@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.

@afwagogoqago - 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

@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. ❤

@ericgather2435 - 2024-10-30

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

@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.

@Preyhawk81 - 2024-12-23

@teagancombest6049 they are for denitrification. Nitrobacters can ONLY assimilate CO2 from air every other carbone source is for denitrification

@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

@TheMightyTimmy - 2024-10-31

​@MWilk098Sam is tough.

@excavon7297 - 2024-10-31

Nice to see Cody is maintaining his chaotic neutral alignment nicely.

@clayton8or - 2024-10-30

LOOK AT ME. I AM THE FISH NOW

@willowwright4638 - 2024-10-31

8:45 bro who hired this Sommelier?

@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

@dudelookatree - 2024-10-30

"I made a machine that pisses itself forever"

@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

@Nairod2 - 2024-10-30

You gave golden shower a new meaning.

@canadiangemstones7636 - 2024-10-31

donOld tRump will be stopping by, he’s a huge fan!

@Nairod2 - 2024-10-31

@canadiangemstones7636 bruh, shut up... go lick justin turdo rear if u care that much about politics.

@bradshawford575 - 2024-10-30

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

@pyromen321 - 2024-10-30

That’s the coolest gamer bucket I’ve ever seen!

@MuzikBike - 2024-10-30

This video title sounds like the title of some really weird and interesting progressive rock song.

@DontMockMySmock - 2024-10-31

"it's a wonder I'm still single!" rofl

@dxtxzbunchanumbers - 2024-11-03

11:00 re: gunpowder, it's known that in the period of resistance to the Japanese in WWII, Chinese villages built latrines that harvested urine into bomb making materials. Oddly enough, those were only the third worst bomb used against Japan.

@Battlejunky1002 - 2024-11-01

3:28 "feeding it urin" is a very fancy way of saying you pissed in it XD

@sirsmokeefortwence - 2024-11-03

Don't screw up your channel or anything but I'd be willing to bet theres a core base of fans like me that would enioy a weekly (or more) half hour podcast/stream to keep up with you! It would be fun to ask some questions and such!

@IneptOrange - 2024-10-30

To be fair, he is THE fish.

@jakelevinson7802 - 2024-11-02

I’ve been watching since the early days and I still think this is an underrated channel. It’s weird in my head. This is always like a really big channel, but never seems like Cody gets the attention he should I also like that this channel still feels like classic YouTube. I know the world changes and that’s not necessarily a bad thing but there’s something about Cody’s lab videos. That really just are very much the same way they’ve always been.

@ZworzeNagger - 2024-10-30

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

@hunter200001 - 2024-10-31

What an absolutely unhinged video showcasing your piss fountain. I love it, never change cody

@Battlejunky1002 - 2024-11-01

I love that i got a youtube notification from i did a thing that sayed " how many fish does it take to pull a boat" and 5 minutes later i got a youtube notification from codys lab that sayed " i am the fish" 😂😂
Edit: why did you change this banger of a title 😢

@magilla_and_amanda - 2024-10-31

Please don't taste it please don't taste it please don't taste it

@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.

@VPCh. - 2024-10-31

Just be careful getting that stuff on your clothing (especially boots) if you are ever wearing it on a plane.
I have a pair of workboots I wore during a mine tour in the mud around the blasting face that I can't bring on planes anymore because the nitrates set off the swab tests.

@MoxkyBashwell - 2024-11-03

@10:33 laugh out loud. "it is a wonder i am still single."