In 2007, the Department of Water Protection in Los Angeles detected high levels of bromate, a carcinogen that forms when bromide and chlorine react with sunlight, in Los Angeles’s Ivanhoe Reservoir. Bromide is naturally present in groundwater and chlorine is used to kill bacteria, but sunlight is the final ingredient in the potentially harmful mix. The 102-year-old facility serves about 600,000 customers downtown and in South Los Angeles. When the Department of Water Protection realized the problem, they began construction of a new underground reservoir in Griffith Park, but while the new facility was being built they had to determine a way to keep the sunlight out of the water.
The possibility of tarps and metal coverings were explored but they were either too expensive or will take too long to install. So one of the DWP's biologists, Brian White, suggested "bird balls," commonly used by airports to prevent birds from congregating in wet areas alongside runways. The balls are made of polyethylene and cost only 40 cents each. The coating contains carbon and black is the only color strong enough to deflect ultraviolet rays.
400,000 balls were dropped into the reservoir on June 2008, where they will remain for the next four to five years until the new underground reservoir is completed.
[via LATimes]
Could you imagine someone with OCD looking at this.
ReplyDeleteyeap, i imagine :)
DeleteThat's not how OCD works, you dolt.
DeleteI have OCD and an looking at it; I think you're confused about what OCD is.
DeleteI have ocd n the shits driving me nuts
DeleteOCD is when you touch a wall repeatedly until it feels right.
DeleteI remember being in the single digits of age and asking my dad why I saw tires or inner tubes in farm ponds and watering tanks in the winter. Have they never noticed how hot their black cars get?
DeleteWhen I read it the 1st time I wondered how much tougher it was going to be to clean it for use as well. Just imagine all the new and wonderful things that might develop under those balls!
They WILL vastly increase water loss by evaporation...(As always; math and science are hard for libs)
its a fake
ReplyDeleteYah fake.
DeleteDude. How is it fake when theres alocation they gave you and pics. I have seen it. In person. I bet you 100% you havent.
Deleteit does say it was only there for a couple of years which means it wont be there anymore
DeleteIts still here
Deletehow do the people in the boat get out
ReplyDeleteYou are joking, right?
Deleteyou aren't really that stupid surely?
Deletehelicopter help them out!
DeleteI get why he was wondering how they got out, he thought that if they went through the water with all the balls there they'd get stuck in the rotor and could mess it up. That's why he asked. @Anon2 You don't have to be so mean.
DeleteYou can fit propeller guards to the motor, which is like a mesh that stops debris from hitting the prop. I'd assume they'd be using them. :)
DeleteThey are elfs, so they can walk over the balls
DeleteLooked fantastic. Like a lot...musta been fun
ReplyDeleteIt will heat the water to boiling by absorbing sunlight, and that's the end of the saved water.
ReplyDeleteIf you think the water is absorbing more heat with that huge black coating over top rather than just being open to sunlight, you should really keep your 'theories' to yourself. If you think sunlight will bring polyethylene to temperatures above boiling (100 C / 212 F), you're just plain stupid.
DeletePolyethylene actual doesn't begin to melt until 115-129 therefore it wont boil at 100. also I believe it doesn't boil it melts then it combust (catches fire) around 300 bypassing the traditional boiling phase. But that may be above your pay grade so what I meant to say is aren't you stupid for thinking everything has the same boiling point as H2O. Lay off, we are all human and have a right to ask questions and contribute.
DeleteThe OP wasn't saying the Polyethylene would boil but rather the water would due to the added heat retained because the balls are black.
DeleteReading comprehension for the win.
Quite impressive...simply amazing, human capacity to find solutions.
ReplyDelete'heat the water to boiling with sunlight'...
ReplyDeleteyou just found a new way to power the entire planet using steam turbines! yay for you!
it might heat the water, but that is not the same as ultraviolet rays. Yes, same temperature but not the same chemical reaction. Hope you didn't or aren't getting a scholarship in science! And just so you know this is an eleven year old speaking. You might want to study a bit more
ReplyDeleteGo you! You might be surprised at hiw stupid most adults really are! That's why they're always giving kids a hard time. Just so you know this is a thirty year old speaking. Never stop studying! !
Delete♥You are awesome! ♥
DeleteThere is no chemical reaction going on. Just convection, coduction and radiation. The reflective surface of the water reflects radiation, while darker colors attract it, hence you get cold water and hot sand on most beaches. I seriously doubt that their solution works, as the surface temperature is going to be hotter because of what they did, and at higher surface temperatures the resting evaporation rate (ie evaporation without boiling) is higher. I want to see the numbers. The ration of surface area decrease for evaporation which is what they were going for, versus the increased evaporation due to water surface temperature increase.
DeleteAre they chemical free??? if not look out.
ReplyDeleteEverything in the universe, except energy, is a chemical.
DeleteThey're made of the exact same plastic that all of the pipes in your house/apartment are likely made from - polyethylene.
DeleteCould have introduced algae which would have been cost effective and eco friendky
ReplyDeleteAlgae is NOT eco-friendly. Though while it lives it does produce oxygen just like other plants, once it's dead the CO2 created while it's decomposing is several times the amount of oxygen it created.
DeleteIsnt algae the main source of oxygen on planet earth?
DeleteIt tends to get eaten before death
DeleteIt wouldn't get eaten in a reservoir
Deletethose shade balls were added to reduce the amount of chlorine being added to reduce algae growth so introducing more algae is prolly not a good idea.
Deletei gotta say....pretty bloody clever!
ReplyDelete@garrett: prove it mate
@DaveDanger: umm...the balls moved to the side as they returned to shore and were shoved back into position by the balls around them. after all they're only floating there.
@dani: really? come on here....we're talking about california....the "this has been proven to cause cancer" state. don't you think their own paranoia would have caused them to do some chemical testing before they did it?
@dani: sorry but algae? yeah sure ok...good way to clog up water pipes! after all, this *is* drinking water and they are *still* dispensing it to the populace. not a very thought out comment. besides, the water contains chlorine which would prevent any algae growth.
How do these balls form sequence like shown in above images?
ReplyDelete"@dani: sorry but algae? yeah sure ok...good way to clog up water pipes! after all, this *is* drinking water and they are *still* dispensing it to the populace. not a very thought out comment. besides, the water contains chlorine which would prevent any algae growth. "
ReplyDeleteYea, Like chlorine is better for you than algae. Pathetic! BTW the water works only introduce chlorine when it enters the pipe. The H-Bomb works much better to make a sterile environment.
Please re-read the article..
DeleteTheres already chlorine in the water..
Its not in the reservoir.
DeleteLike all water treatment plant for drinking water, its added at the purification plant.
The article clearly states that the water has chlorine in it. I doubt the water is exposed to sunlight at the purification plant.
DeleteSorry, but I worked at a water treatment plant and there are OPEN vats in stages for treatment includine chlorine, lime, etc., and sunlight is always present in daytime hours baring cloud and storm coverage.
Deleteif i had to choose between algae and ping pong balls in my drinking water... ping pong balls win. they float and serve their purpose without causing new problems. very clever solution.
ReplyDeletethat's because your not a smart person. Algae is natural, and safe. Plastic and the dyes used to make those balls black probably are not.
DeleteBy-products from algae, especially blue-green algae are toxic and you'd be best to avoid contact with skin let alone drinking the water. Look up microcystin and MIB...
Delete*you're
DeleteAlgae is natural and safe? Ever hear of a red tide? There are a myriad of algae capable of producing toxins.
DeleteAlgae, while natural, is far from safe. "Natural" is not the equivalent of a green seal of approval from mother nature. Bears are natural. Venom is natural. Every single species of poisonous plant and toxic mineral on this planet is natural. Stop being a backwards alarmist.
DeleteIf you were capable of reading the article, you would see that the black color comes from carbon. If you feel that carbon is an unsafe chemical, I encourage you to try to remove all traces of it from the Earth. Please start with your own body.
DeleteIf it wasn't safe they wouldn't have used them... (-__-)
DeleteThe balls should have been Polypropylene and that would make the solution perfect for drinking water.
ReplyDeleteEven better: use it to wash, but drink bottled water. No just any though. Evian is not treated (no need so no bleach or other chemicals), has tons of necessary minerals, and is slightly alkaline, which balances our systems back to a neutral ph as we're tendered acidic by our food. No wonder French people live a lot longer and are much healthier!
ReplyDeleteYeah cause that's what we need more freaking plastic bottles are you stupid!?!
DeleteMost French people drink from the tap. I know because I am one. Unless you are drinking bottled water out of glass, chemicals from the plastic will leach into your water anyway.
DeleteNot a scientist, but I have heard that ALL bottled water has been treated, is simply tap water that has been filtered and if it were not, it would have to be, in some time before being introduced into the human (or animal) body. Most everyone knows that you can store water in sealed containers for emergencies, but only if you add at least three drops of chlorine per gallon and shake, recap and seal. If you fail to do this, toxins will grow, and you will introduce them into the body. Still, this chlorinated water is better than drinking pond water straight out of the pond after cows and deer have peed in the pond, or river, but you could still boil and/or run that water through a purification system so that it would be safe to drink. My wife does both. If bottled water is not treated, I will not drink it, dated or not. In this day and time, you can't trust anything. I have more on stored water, and would explain how Civil Defense agencies preserve water, but.......... most wouldn't believe me............... By the way, Evian spelled backward is Naive, and thinking that ANY bottled water has not been treated is just that, Naive. If not treated, water is not usable for consumption (without treatment) in one month or less. Evian has to sell its water pretty fast to stay in business. And amen to the plastic bottle leaching chemicals and toxins, although I do drink bottled water from plactic bottles and know that I shouldn't, it is mostly from gallon jugs and then they are recycled when emptied.
Deleteare the balls BPA FREE?
ReplyDeleteGreat... more f---king plastic that will ultimately end up in a landfill.
ReplyDeleteEver hear of plastic recycling?
DeleteThey came out of the ground as oil and other byproducts which were already in the ground, a landfill is merely a relocation site to put them back where they originated. Beside that, who's to say that they may not be recycled to blacktop filler, etc., (I worked in a retread plant and we recycled our rubber to asphalt manufacturers) or even reused as is by an airport for their original intended purpose?
Deleteall those ball pits at McDonald's that are completely empty... Poor children.
ReplyDeleteKids would not want to play with these in their ball pits. These balls are very hard. Not the softer ones in the play pits... ;)
DeleteWhy not use white balls? Someone please help
ReplyDeleteRacist! lol jk... "black is also the only color able to deflect UV rays."
DeleteMay eliminate evaporation but what about the carcinogens released into the water from the black plastic interacting from the high heat of the sun? Hmmmmmmmmmm
ReplyDeleteYes Im wondering the same thing.
DeleteCan't wait to see the water literally boiling out of there as the black absorbs the heat.
ReplyDeleteAmerica is doomed. Not by these balls of course, but by the complete stupidity of the people posting in the thread.
ReplyDeleteWhat about all the pollution created by the production of all these little plastic balls? Why not make them white?
ReplyDelete