Slashdot Mirror


Wisconsin Begins Using Cheese To De-Ice Roads

Hugh Pickens DOT Com writes "The NYT reports that Milwaukee has begun a pilot program to use cheese brine to keep city roads from freezing, mixing the dairy waste with traditional rock salt as a way to trim costs and ease pollution. 'You want to use provolone or mozzarella,' says Jeffrey A. Tews, the fleet operations manager for the public works department, which has spread the cheesy substance in Bay View, a neighborhood on Milwaukee's south side. 'Those have the best salt content. You have to do practically nothing to it.' Local governments across the country have been experimenting with cheaper and environmentally friendly ways of thawing icy thoroughfares, trying everything from sugar beet juice to discarded brewery grain in an attempt to limit the use of road salt, which can spread too thin, wash away and pollute waterways. 'If you put dry salt on a roadway, you typically lose 30 percent to bounce and traffic,' says Emil Norby, who works for Polk County and was the first in Wisconsin to come up with the cheese brine idea to help the salt stick. In a state where lawmakers once honored the bacterium in Monterey Jack as the state's official microbe, residents of Bay View say they have noticed little difference, good or bad, in the smell of their streets, and city officials say they have received no complaints. The mayor of Bay View says it's an experiment, but one that makes sense. The brine will come from the Dresser Farm in Polk County, where it is already being used on the roads. The only cost will be for transportation and distribution. 'We thought, 'Well, let's give it a shot.' The investment in this project is $1,474.'"

79 of 139 comments (clear)

  1. Side-effects by c · · Score: 1

    I have a feeling the roadkill rate might go up a bit, and I'd hate to think about trying to walk my dogs on a sidewalk or street coated with processed dairy...

    --
    Log in or piss off.
    1. Re:Side-effects by ElementOfDestruction · · Score: 4, Funny

      Are your dogs lactose intolerant? Hipster freaking dogs with their allergy-of-the-month syndromes...

    2. Re:Side-effects by Anonymous Coward · · Score: 1

      Yes, just like 70% of adult humans and all the other adult mammals on planet earth.

    3. Re:Side-effects by c · · Score: 1

      They're probably as lactose intolerant as the rest of the canine population. But the real problem is that they're more than a little bit food driven, and one's a hound.

      --
      Log in or piss off.
    4. Re: Side-effects by Anonymous Coward · · Score: 1

      [Citation needed]

      70% would mean that 7 out of every 10 people I know would be lactose intolerant. However, that ratio for me is more like 1 in every 100.

      So either I'm an extreme statistical outlier or you're spouting bullshit. Guess which one I'm betting it is?

    5. Re:Side-effects by kernelpanicked · · Score: 1

      Here I am with mod points, but there doesn't seem to be a -1 Dumbass option in the dropdown.

      --
      Ubuntu: If at first you don't succeed, blindly slap a sudo in front of it
    6. Re: Side-effects by PlusFiveTroll · · Score: 2

      90% of the people you know are probably White. If you based world population trends on the area where you live you probably think most people in the world are White, followed by Blacks. Reality is most of the world population is Asian.

      This is why so many U.S. science and medical studies fall under the W.E.I.R.D problem

      http://www.slate.com/articles/health_and_science/science/2013/05/weird_psychology_social_science_researchers_rely_too_much_on_western_college.html

    7. Re:Side-effects by reub2000 · · Score: 1

      Cheese doesn't contain lactose

    8. Re: Side-effects by osu-neko · · Score: 1

      [Citation needed]

      "Most mammals normally cease to produce lactase, becoming lactose intolerant, after weaning,[4] but some human populations have developed lactase persistence, in which lactase production continues into adulthood. It is estimated that 75% of adults worldwide show some decrease in lactase activity during adulthood.[5] The frequency of decreased lactase activity ranges from 5% in northern Europe through 71% for Sicily to more than 90% in some African and Asian countries.[6]"

      70% would mean that 7 out of every 10 people I know would be lactose intolerant. However, that ratio for me is more like 1 in every 100.

      So either I'm an extreme statistical outlier or you're spouting bullshit. Guess which one I'm betting it is?

      Do not try to generalize from personal experience: you are not the center of the universe. (You are, in fact, a moron.) The human mutation that allows some adult humans to continue to tolerate lactose into adulthood, an extremely abnormal trait for mammals, is only common among those of northern European descent, becoming an increasing smaller minority the further afield you get from northern Europe or its colonies.

      --
      "Convictions are more dangerous enemies of truth than lies."
  2. Re:"$1,474?" said the Federal Government, by peragrin · · Score: 3, Insightful

    not the federal the county government. and yes I bet that is legit for the initial test.

    They were probably given the brine for free so the company wouldn't have to dispose of it legally. which would also cost a couple of thousand of dollars.

    --
    i thought once I was found, but it was only a dream.
  3. Makes sense by amanaplanacanalpanam · · Score: 1

    After all, they say "do what you know"...

  4. Slippery by fatp · · Score: 1

    Won't this make the road even more slippery?

  5. Headline sucks by dbIII · · Score: 4, Informative

    The content says brine, the salty water left over from cheesemaking.

    1. Re:Headline sucks by Mashiki · · Score: 2

      In otherwords, they're using what we've been spraying on roads in Canada for the last 5 years...and what we make in the depot yards from the "powdery leftover salt." Of course we add in a chemical deicer as well, since it quite often gets below -10C here in the winter, and straight salt stops working properly at -9C. And then there's other places here in Canada where we use gravel or sand, and only that because even chemical deicers don't work when it gets that cold.

      --
      Om, nomnomnom...
    2. Re:Headline sucks by locopuyo · · Score: 1

      -10C is nothing, it often gets -10F there.

    3. Re:Headline sucks by Mashiki · · Score: 1

      -10C is nothing, it often gets -10F there.

      That's nice, it gets -20F here. And I've seen it as low as -35F in southern ontario(which is farther south), as a useful point the effectiveness of salt diminishes the closer you get to -10C, at -10C it stops being effective totally and you need to mix in other things to keep it working. Or switch to a chemical deicer but those are usually only good to -20C or so, some of the more expensive ones will work to -30C or so.

      And being that I just came back from a part of the country where it hit -39F ... in mid-november I've got a fair idea of how deicing works, doesn't work, and options.

      --
      Om, nomnomnom...
  6. cheese vs cheese brine by csumpi · · Score: 4, Funny

    timothy, if that's the same to you, have some with crackers.

    1. Re:cheese vs cheese brine by Anonymous Coward · · Score: 1

      Brine is delicious, you insensitive clod.

    2. Re:cheese vs cheese brine by ColdWetDog · · Score: 2

      Brine is delicious, you insensitive clod.

      You shrimp.

      --
      Faster! Faster! Faster would be better!
    3. Re:cheese vs cheese brine by cold+fjord · · Score: 1

      You seem to think he's in a pickle of some sort.

      --
      much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot - George Orwell
    4. Re:cheese vs cheese brine by radarskiy · · Score: 1

      I am shocked to discover that an jackkassed inflammatory title was applied to an article!

      Actually no, I'm not.

    5. Re:cheese vs cheese brine by sconeu · · Score: 1

      Ahhh... the power of CHEESE!!!!

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
  7. Re:"$1,474?" said the Federal Government, by horm · · Score: 1

    I normally don't do this, but, "Woosh!"

  8. Why? A cheesemaker's POV... by BrokenHalo · · Score: 5, Interesting

    As a professional cheesemaker, (yes, one of the blessed variety), the first question that comes to my mind is:

    Why are these people throwing out their brine? This seems an unnecessarily costly exercise.

    It is typical practice in many cheese factories (and all of those in which I've worked) to keep and re-use brine (sometimes for decades), with routine and simple maintenance such as topping up salt levels, adjustment of pH, filtration to remove solids and occasional pasteurisation if required.

    A "raw" brine of just NaCl and water will, of course, do the job of salting your cheese, but most of the salt is left in solution at the end of the brining process (so it doesn't make sense to throw it away), and the pH will have a tendency to bounce around, adversely affecting the properties of your cheese. The various whey products in a re-used brine help to stabilise the pH, so one usually only needs to top up salt to replace that absorbed by the cheese.

    1. Re:Why? A cheesemaker's POV... by Anonymous Coward · · Score: 2, Funny

      Well, obviously it's not meant to be taken literally; it refers to any manufacturers of dairy products

    2. Re:Why? A cheesemaker's POV... by rossdee · · Score: 2

      It wouldn't work so well around here, since NaCl brine freezes at 0F
      Low temps for the next three nights are forcast at -20F
      And we already had one -24F night this winter
      (I live west of Wisconsin)

    3. Re:Why? A cheesemaker's POV... by mjwx · · Score: 1

      It is typical practice in many cheese factories (and all of those in which I've worked) to keep and re-use brine (sometimes for decades), with routine and simple maintenance such as topping up salt levels, adjustment of pH, filtration to remove solids and occasional pasteurisation if required.

      Realistically, seeing as the engineering problem is the loss from dropping salt in it's solid form wouldn't any kind of brine or saline solution do as long as it didn't freeze. It doesn't necessarily have to be from cheese. Not that this matters to me where I live, it was 32 Degrees Celsius here in Perth, Australia today. Just curious, would brine reuse be done at factories that mass produce the yellow plastic masquerading as cheese at the supermarket? I'm not a cheesemaker but have a bit of experience with beer, a national mass producer has a radically different brewing style to a local producer.

      --
      Calling someone a "hater" only means you can not rationally rebut their argument.
    4. Re:Why? A cheesemaker's POV... by sir-gold · · Score: 1

      Salt water is better than dry salt, it's free to the local government, and the brine would have to be disposed of somewhere anyway.

  9. Smell? by wisnoskij · · Score: 3

    I could imagine this smelling pretty horrible, particularly come summer.

    --
    Troll is not a replacement for I disagree.
    1. Re:Smell? by Anonymous Coward · · Score: 3, Informative

      Parent is suggesting that the current lack of smell might be due to the low temperatures freezing the more odorous molecules. (Or retarding odorous bacteria that feed on the solution.) And thus once the temperatures rise, all that cheesy-brine on or near the roads will start to whiff up.

    2. Re:Smell? by Attila+Dimedici · · Score: 4, Insightful

      Well, yes, it would probably smell pretty bad if they were to spread this on the roads in the summertime. However, as an Anonymous Coward pointed out, they don't have much of a problem with ice on the roads in the summer in Milwaukee. In addition, it is unlikely that the brine they spread on the roads during the winter will still be there by the time the weather gets warm enough to cause a smell problem.

      --
      The truth is that all men having power ought to be mistrusted. James Madison
    3. Re:Smell? by rmdingler · · Score: 1
      Your step parent is suggesting an attempt at one-liner humor.

      Likely your scientific evaluation missed salt's inherent ability to retard bacterial feeding.

      --
      Happiness in intelligent people is the rarest thing I know.

      Ernest Hemingway

    4. Re: Smell? by HornWumpus · · Score: 2

      All of which are pale shadows of Decatur Illinois.

      ADM processes something like 50% of the world soy in Decatur. The whole town smells like a tofu eater puked in the corner.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    5. Re:Smell? by marcosdumay · · Score: 1

      Parent is(n't) clarifying that the brine will be washed long after the summer comes.

    6. Re:Smell? by wisnoskij · · Score: 1

      If you spread this stuff in the billions of gallons all over the state, I do no care when you do it, the entire state is going to smell.

      --
      Troll is not a replacement for I disagree.
    7. Re:Smell? by Attila+Dimedici · · Score: 1

      As the Anonymous Coward pointed out, it is unlikely that they will spread this in anywhere near that scale. Pennsylvania, for example, uses somewhere on the order of 200,000 gallons of brine in a winter. Wisconsin is a larger state than Pennsylvania and I believe they experience more snow than Pennsylvania, on the other hand, Pennsylvania has more miles of road than Wisconsin. Altogether, I would be surprised if Wisconsin used 500,000 gallons, even if they expand this program to the entire state.

      --
      The truth is that all men having power ought to be mistrusted. James Madison
    8. Re: Smell? by HornWumpus · · Score: 1

      Enough reason to move.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    9. Re:Smell? by radarskiy · · Score: 1

      "Milwaukee doesn't have icy roads in summer.

      Fact not in evidence.

    10. Re: Smell? by Wolfrider · · Score: 1

      --Man, when I was passing thru Decatur in the 70's and 80's, the smell of old "Stinky Staley" always used to remind me of McDonald's french fries... mmmm

      --
      .
      == WolfriderV6 == I'm willing to admit that *I just might* be wrong... Are you??
  10. Cheese brine != cheese by Anonymous Coward · · Score: 1

    It's actually a waste product that is mostly salt water.. but thanks for the usual Slashdot quality journalism.

    1. Re:Cheese brine != cheese by Anonymous Coward · · Score: 2, Informative

      don't blame slashdot editors for this one.. the article at the new york fucking times uses "cheese" (only, not paired with 'brine') in its own headline.

  11. Re:Spiked tyres and featered tread and higher sili by Longjmp · · Score: 1

    Better tyres yes, spiked tyres depends.
    They make sense in areas/countries with low population density and snow covered roads.
    On mostly ice/snow free streets they wear down any pavement quite fast, resulting in street repair costs magnitudes higher than the initial savings during winter.
    That and they are really shitty compared to normal tyres when you brake.

    --
    There are fewer illiterates than people who can't read.
  12. Re:"$1,474?" said the Federal Government, by OptimalCynic · · Score: 1

    It's the OP's fault for putting content in the subject and not in the body.

  13. Typo in headline by damn_registrars · · Score: 4, Informative

    They are using cheese brine, not the cheese itself. The brine has salt in it but is mostly not cheese.

    --
    Damn_registrars has no butt-hole. Damn_registrars has no use for a butt-hole.
  14. Re:"$1,474?" said the Federal Government, by rmdingler · · Score: 1

    Yeah, but if you mod him down it'll all appear together on one line.

    --
    Happiness in intelligent people is the rarest thing I know.

    Ernest Hemingway

  15. Cats by symes · · Score: 5, Funny

    They are going to have a problem with mice on the roads. What will the spray to deal with the mice? Fish. The fish will attract cats who will eat the mice. But then there will be a cat problem, so they will have to spray ... anyway, I am sure that the old woman who swallowed a fly is consulting. So all is well.

    1. Re:Cats by dkf · · Score: 1

      They are going to have a problem with mice on the roads. What will the spray to deal with the mice? Fish. The fish will attract cats who will eat the mice. But then there will be a cat problem, so they will have to spray ...

      You obviously don't know cats; they like cheese too. Or at least our cats do. That means you can save on the fish spray...

      --
      "Little does he know, but there is no 'I' in 'Idiot'!"
    2. Re:Cats by Megane · · Score: 4, Funny

      And when winter comes, the gorillas will simply freeze to death.

      --
      #naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
  16. Re:"$1,474?" said the Federal Government, by OptimalCynic · · Score: 1

    Except I can't use my mod points now I've posted :)

  17. Just for fun....Add Macaroni by ClassicASP · · Score: 1

    I bet there's plenty of leftover dry-noodle-dust somewhere that could be thrown into the mix.

  18. Whey too expensive by Anonymous Coward · · Score: 5, Funny

    Although I suppose it curd work.

    1. Re:Whey too expensive by karnal · · Score: 3, Funny

      Where there's a wheel there's a whey.

      --
      Karnal
    2. Re:Whey too expensive by cold+fjord · · Score: 1

      Cheesy humor to be sure.

      --
      much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot - George Orwell
  19. Bay View is a neighborhood, not a city! by Noxal · · Score: 1

    Bay View is not a city! It's a neighborhood of Milwaukee! Summary starts by saying this but then just descends into ignorance by talking about the mayor of Bay View. There is no mayor of a neighborhood!

    Also I am a native Milwaukee resident and I support this. Cheese that shit up, bitch. As long as it doesn't damage anything or stink or leave a nasty residue.

    1. Re:Bay View is a neighborhood, not a city! by PopeRatzo · · Score: 1

      Also I am a native Milwaukee resident and I support this.

      No surprise.

      --
      You are welcome on my lawn.
  20. Cold by Anonymous Coward · · Score: 5, Funny

    Thats a heat wave

    When I were a lad in Yorkshire, it used to get down to -25 Kelvin, and our mother would give us a cup of liquid Helium to warm us up...

    1. Re:Cold by Anonymous Coward · · Score: 1

      He's not bragging. Lots of places are too cold for salt brine, likely including most of WI. Hence the sanding trucks and ice grooving machines.

  21. Re:"$1,474?" said the Federal Government, by glavenoid · · Score: 3, Funny

    Don't worry, I'll mod it for you.

    --
    I, for one, am looking forward to the inevitable /. beta rollout fallout.
  22. Re:Spiked tyres and featered tread and higher sili by burne · · Score: 1

    Pavement (material), the durable surfacing of roads and walkways;

  23. Obligatory Sheogorath cry... by GarethIwanFairclough · · Score: 2

    CHEESE FOR EVERYONE!!!!

  24. Use of whey by cold+fjord · · Score: 1

    I've encountered the use of what I was told was a whey solution being sprayed on roads to keep down the dust in summer. As I recall that did smell a bit.

    --
    much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot - George Orwell
  25. Re:"$1,474?" said the Federal Government, by neoform · · Score: 1

    You can't mod and comment...

    --
    MABASPLOOM!
  26. Why cheese brine? by tramp · · Score: 1

    I suppose cheese brine uses consumergrade salt while a mixture of rock salt and brine has been known as de-icing method for quite a while now.

  27. Re:Spiked tyres and featered tread and higher sili by sir-gold · · Score: 1

    Spiked tires and tire chains are actually illegal to use in Wisconsin, except for emergency vehicles and rural mail carriers.

    The best you can use there is regular soft-rubber snow tires

  28. Re:Spiked tyres and featered tread and higher sili by sir-gold · · Score: 1

    And then that 4 inches of slush gets compressed and frozen into a 1 inch thick slab of ice (covered in a layer of powdered ice)

  29. In other news... by LeeBarnes · · Score: 1

    cheese shortages at local cheese shops leads to widespread cat famine.

    --
    "Before humanity, the stars shone throughout the heavens. After humanity [has gone], the stars will continue to shine"
  30. Re:Heh by Wing_Zero · · Score: 2

    I live in Wisconsin, and we tend to do a lot of "Second Run" Re purposing, I makes sense, Its already there, so why not?

    I know the freeway salters already use a thick slurry salt mix that not only speeds the melting process, but also stays put alot better on bridges and such. I don't know what is exactly in the mix, but i seem to recall the mix is just as safe as pure salt.

    Other than cost savings though, I wouldn't call it a eco benefit. It's still going to wash away into the ground and local water, I remember a article in the Milwaukee journal a few years back that some of the smaller ponds and lakes in the Madison area were starting to show a dangerous salinity level for the local wildlife. (they tend to over salt the roads a bit according to the article)

    I live in the Northwoods, and what the county does here is salt right after the snow ends, and after that it's sand. a bit more economical, they just send a street sweeper out early spring and collect what hasnt washed away and reuse it

  31. Calcium Magnesium Acetate (CMA) works great by pubwvj · · Score: 1

    Calcium Magnesium Acetate (CMA) works great. We've been using CMA for three years on our farm. It is non-toxic, doesn't damage concrete, doesn't corrode steel, won't hurt plants, aquatic life or pigs (what we raise on pasture) so it is pretty ideal.

    The down side is that CMA is more expensive than road salt. I feel the extra cost is worth it to protect the environment, our livestock, our buildings and our vehicles.

    See these articles
    http://www.google.com/search?q=site:sugarmtnfarm.com+cma

    1. Re:Calcium Magnesium Acetate (CMA) works great by Rich0 · · Score: 1

      That was my first thought. All they're doing is just finding another source of NaCl. They shouldn't be trying to spend less on salting roads - they should be spending more as the current strategy is penny wise and pound foolish.

      Many have argued that switching to organic salts would cost a bit more in the salt budget, but would easily pay for itself many times over in reduced road maintenance and increased car longevity.

      We'll never see it happen though - society is WAY too short-sighted for that.

  32. Re:Heh by davester666 · · Score: 1

    use what you have...

    --
    Sleep your way to a whiter smile...date a dentist!
  33. Re:Spiked tyres and featered tread and higher sili by Lumpy · · Score: 1

    "That and they are really shitty compared to normal tyres when you brake."

    no they are not. I ride on studded snow tires and I can stop far FAR shorter than any other tire on snow, and they already proved that winter tires in general have a higher grip on a 2WD sedan than all seasons do on a 4X4. Jalopnic did several runs on a track and proved it without a doubt.

    The studs are easily removed for when the ice is all gone. The simple tool I have will insert or remove the studs. And bans on them are not for the roads, it's that most drivers are far far too stupid to keep the car under 45mph with the studs in. over that speed the risk of throwing the studs increases rapidly.

    Granted I actually USE the tires so I know a lot more about them and drive with them during the winter so I know how they add traction and their limitations.

    Studded snow tires on a honda civic can out drive any 4X4 truck on all seasons in the snow, it's such a difference you can see the "truck nuts" shrivle up.

    Note: my wifes Jeep has standard snow tires on it and she outdrives hard even the county snow plows, no sliding at intersections, etc....

    --
    Do not look at laser with remaining good eye.
  34. Re: Spiked tyres and featered tread and higher sil by Lumpy · · Score: 1

    Milwalkee gets nothing compared to what we get across the lake. I have 4 feet in my yard right now, drive 10 miles east and it drops drastically. Unless the prevailing winds do a 180, Milwalkee get's nothing in snow compared to where I am living. Got an additional foot last night, not a big deal, you wipe it off the car and drive away.

    --
    Do not look at laser with remaining good eye.
  35. Re:Spiked tyres and featered tread and higher sili by Lumpy · · Score: 1

    You can use the walnut shell "spiked" tires there without a problem.

    --
    Do not look at laser with remaining good eye.
  36. "'You want to use provolone or mozzarella"

    "Just remember: use pro-vo-lone-ay on the stone-ay."

    --
    (-1: Post disagrees with my already-settled worldview) is not a valid mod option.
  37. Re:Heh by osu-neko · · Score: 1

    Other than cost savings though, I wouldn't call it a eco benefit. It's still going to wash away into the ground and local water...

    There ought to be an eco benefit, given that you can achieve the same result with 30% less.

    --
    "Convictions are more dangerous enemies of truth than lies."
  38. Not needed in Montreal by Hamsterdan · · Score: 1

    The roads are in such a bad condition, it's almost as if there are snow threads in the asphalt itself...

    --
    I've got better things to do tonight than die.
  39. mold-inducing bacteria, what could go wrong? by ConstantineM · · Score: 1

    Dumping the cheese cultures all over town, with the mold-inducing bacteria, what could possibly go wrong?!

  40. Ik ruik business ! by Optali · · Score: 1

    Henk-Jan maak de kooien klaar, we hebben nieuwe klanten! ;)

    --
    -- 29A the number of the Beast