ss_blog_claim=e9ab7c173601a192645a69d09ab6e67f What problem can you solve with 3 million 4 inch balls?
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What problem can you solve with 3 million 4 inch balls?

Wednesday, August 20, 2008 4 comments

In order to protect a reservoir from sunlight 3 million black plastic balls are being added. The sunlight causes a reaction between the bromide and the chlorine resulting in the carcinogen bromate forming. The balls will not only block the sun but will be loads of fun for local kids! This was done at the Ivanhoe reservoir in LosAngeles county.

source: http://www.engineering.com/


4 comments: to “ What problem can you solve with 3 million 4 inch balls? so far...

  • a.i. editor August 24, 2008 4:45 PM
     

    Err..why would people want to protect a reservoir from sunlight in the first place?

  • leonardo August 24, 2008 5:21 PM
     

    to a.i. editor:

    thanks for dropping by. they wanted to protect the reservior from sunlight to prevent the formation of bromate.

    "Bromate" in drinking water is undesirable because it is a suspected human carcinogen. A combination of bromide from water, chlorine and sunlight form bromate. The black plastic balls was used to block the sunlight which causes the naturally present bromide to react with the chlorine used in treatment in the Ivanhoe reservior. -wikipedia

  • a.i. editor August 27, 2008 9:36 AM
     

    Sure, no problem. I like to read about structural engineering stuff. It is why I bookmarked your blog

    Oh, carcinogen is not good. Better safe than sorry. It looks like they require plenty more plastic balls.

    I hope they can recycle the plastic balls. Hopefully, none of them will get lost.

    Abas
    Voyage.aimvotal.com

  • leonardo August 28, 2008 12:31 AM
     

    thanks for the bookmark. though, i can't post so frequent; i'll still make some effort to share to you more about engineering..

    cheers...

 
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