Slashdot Mirror


Cleansing Hardware Of Dead Pig Odors?

Chagatai writes "My company is one of America's largest beef and pork producers. Recently I took a trip to see a new computer room that had been built at one of our abbatoirs. While the new environment is nice and sanitary, the old computer room had air intakes that were adjacent to the rendering portion of the plant, and everything smells in an almost unholy way. Management is curious if there are any cleaning agents or means of deodorizing this equipment before moving it into the nice, new office. The only products I could find would clean the outside of the hardware, but the internals would still possess the lovely aroma of boiled dead pig parts. Of course, this is a race against time, as I am sure someone will inevitably squirt Pine-Sol into the system to try to make things better. Does anyone have any recommendations to remove the effluvium of post-mortem porcine matter from our machines?"

27 of 693 comments (clear)

  1. To suggest this is almost criminally stupid by captnitro · · Score: 5, Informative

    This has worked for me many times before, and I can vouch for it, but the obvious disclaimer is that there are a number of reasons why it's a bad idea, as I'm sure any replies to the post will inevitably explain. But it's worked for me before.

    Power down all your machines and unplug them. Set up adequate ventilation (I use several cheap desk fans). Wipe down your hardware with rubbing alcohol using a lint-free cloth or a few old t-shirts; don't worry about your own, buy a big bag of them at Goodwill.

    When you get tired of that, or you pass out from the fumes, just pour it in. Yes, I'm serious, you'll want to trickle it over the green hardware and get everything generally soaking. (Not the power supply or hard drive, just PCBs and the like. This is already a dumbass idea, so you don't want to be much more stupid about it.) Then leave, otherwise you'll probably pass out.

    I discovered this trick while given the task of cleaning a friend's laptop. He smokes, a lot, and had quit and didn't want the smell. He also had sticky keys from God knows what, so I honestly just said "fuck it" and turned the laptop on its side, open, and poured rubbing alcohol into the ports, taking care not to let it get near the screen, which rubbing alcohol can damage. Using a lot of it allows the liquid to remove dust as it flows by. The excess flowed out the other side and into a few paper towels.

    Rubbing alcohol is a great solvent and evaporates quickly, so the ventilation is more for the computers, not you. Make sure the insides are aired out before powering up, or you may find yourself battling a quick-burning alcohol fire.

    Have fun!

    1. Re:To suggest this is almost criminally stupid by mikeleemm · · Score: 4, Informative

      Problem with rubbing alcohol is it is generally not purely non-conductive, as well as it will take dust and other stuff in the computer and turn it into a nice conductive liquid. Unless you are able to use very pure solvent and a lot of it to make sure you remove all dust particles, I wouldn't go for this.

      My suggestion would actually be to remove as much of the dust from the system as possible. Use a vaccuum and an air compressor (forget those little bottles of "canned air") The majority of the dust might be in "Do Not Open" areas, like power supply, so open those and clean them. Eventually the nastiness will get covered up by other office dust and the smell will go away.

    2. Re:To suggest this is almost criminally stupid by photon317 · · Score: 4, Informative


      I second Capt Nitro here, rubbing alcohol is one of the safest and most effective things you can clean electronics and computers with (Relatively speaking, like he said, there's obviously risks of damage to certain types of components, especially if it manages to pool somewhere where it can't evaporate away realitvely quickly - pull cases open everywhere you can, rotate the equipment around to get excess out, and use lots of fans).

      Be *very* careful about the fire hazards. If you manage to somehow ignite the alcohol, things can get ugly quick, as the flames are often almost completely clear with the pure stuff, and you figure it out by burning yourself. Things get really nasty when there is a fire quickly spreading around the room and through the fumes in the air around you, and you don't even realize it and can't see how far it has already spread. If, at some point in this comical adventure, you find yourself sitting in the middle of a room full of fans, computers dripping in alcohol, and heavy fumes, and you even *suspect* that some of the alcohol has just ignited - GET OUT, and call the fire department or hose the room down or something.

      --
      11*43+456^2
    3. Re:To suggest this is almost criminally stupid by mjphil · · Score: 5, Informative

      Avoid rubbing alcohol at all costs! Some bottles contain glycerine, which won't evaporate.

      Look for bottles labeled "99% Isopropyl alcohol", it's the pure stuff.

      I shouldn't need to mention it here, but will anyway:

      Dont't drink this stuff, it's pure poison!

    4. Re:To suggest this is almost criminally stupid by shbazjinkens · · Score: 5, Informative

      Alcohol disolves in water, where did you get the idea that it floats? What do you think the other 70% is in 30% isopropyl alcohol?

      Seriously.. read up on stills.

    5. Re:To suggest this is almost criminally stupid by Anonymous Coward · · Score: 3, Informative

      Since I've actually burned rubbing alcohol for torch juggling (see another post in this thread), the flame is not clear at all. It actually has a pretty blue flame, and while it is flammable, it's burning temperature is much lower than that of other, which makes it relatively easy to put out.

    6. Re:To suggest this is almost criminally stupid by Lee164 · · Score: 3, Informative

      Step #2 A long time ago in a land farway called Vietnam, when I was in the Army we had to clean some elect. equipment and all we had was diesel fuel.

      And yes it does work! Clean the computers inside and out with the fuel and let dry a day or so then clean the electrical contacts with alcohol.

      And why not the power supply boards? They are no more dangerous than any other circuit in the computer, if the 24 v or 12v or 5v circuits on the other cards don't start a fire why would the same voltage in the power supply board start one?

      You will have a new smell to deal with but it will not be dead pigs.

      Step #1 Call a company that cleans up dead people in houses and apartments. People die all the time in their homes, some because they were murdered and some because they died of natural causes, sometimes they are there a day and sometimes a month or more.

      After the police are gone SOMEBODY has the clean that mess up, so call the companies that do that all the time, have them clean your equipment.

      Much safer than alcohol or diesel fuel.

    7. Re:To suggest this is almost criminally stupid by Stephen+Samuel · · Score: 3, Informative
      Rubbing alcohol is not necessarily just isopropyl and water. Sometimes (or usually) it's also cut with glycol (or other jells which cut down the drying nature of isopropyl). In a couple of cases, I've seen it be an ethanol mix.

      In any case, I'd also second the suggestion of using 99% isopropyl. it's relatively safe on most electronics, and about as cheap as rubbing alcohol (but a little bit harder to get hold of).

      But as for doing this job inside, NO WAY! . Not unless you have access to a fume hood. The LAST thing you want to do is poison yourself with the fumes. You're far better of to do it somewhere outside, and a few metres away from anything flamable and even further from anything that generates sparks I'd even suggest doing it after dusk. That way, if you do manage to light the stuff on fire, you'll have some hope of noticing it before you have 3rd degree burns over vast parts of your body.

      For safety, I'd suggest having a workmate standing by with a water hose (and a sprayer with a hand-trigger that lets you have the tap turned on for fast response).. uphill and upwind if at all possible. Chances are (s)he won't have to do anything, but it's far better to have him/her present and bored, than missing and needed.

      --
      Free Software: Like love, it grows best when given away.
  2. Steam cleaning by Anonymous Coward · · Score: 5, Informative


    This is one of the best ways to remove stuff down to the molecular level, and involves no chemicals.

    It truly is "the hot setup" ( pun intended ).

    Google "vapor cleaning" for more info.

  3. Odor absorbtion by Scrameustache · · Score: 4, Informative

    There are activated carbon pellets that are designed to absorb odors. They do a pretty nice job of it.

    I suggest cleaning up the equippement as best you can and then placing a few of these in or around the offending hardware.

    --

    You can't take the sky from me...

  4. Baking soda by proverbialcow · · Score: 4, Informative

    I'd suggest turning the 'puter off, laying the case on its side and pouring in a box of baking soda for a few days. Dump out the baking soda a few days later and blow out the residue, and your computer should smell remarkably "less bad." Mixing a little alum with the baking soda can't hurt, either.

    The smell of a rendering plant will be hard to remove, but this is how I remove the "beef scent" from tallow when I'm making soap.

    --
    The only surefire protection against Microsoft infections is abstinence. - The Onion
  5. Ozone! by Markus+Registrada · · Score: 4, Informative

    What you need is an ozone generator. Park the equipment and the generator in a closed room for a few days, or weeks. Most ozone generators are built from a short-wavelength ultraviolet lamp in a box, sometimes with a fan. (Don't confuse ozone generators with negative ion generators. Ozone causes permanent lung damage, over time. Ozone generators also produce ions, but so what?.) The ozone will oxidize the aromatic organic molecules, over time.

  6. Wash them by Gaima · · Score: 3, Informative

    If it's not too much hard work, then take them apart and wash them, hot soapy water should do, perhaps with a mild bleach.
    As long as all the parts are *throughly* dry before reassemble, the water is no danger.

    Once watched a sun engineer do it to an IPC after a colleague spilt hot chocolate into it...

  7. Re:Ozone! by andfarm · · Score: 4, Informative
    > The ozone will oxidize the aromatic organic molecules...

    Obligatory nitpicking: the word you probably want is "odiferous", not "aromatic". "Aromatic" has the specific connotation of containing benzene-style aromatic rings, which not all odiferous compounds contain.

    --

    TANSTAAFI: There Ain't No Such Thing As A Free iPod.

  8. Re:Not pigs, but cigarettes by Anonymous Coward · · Score: 5, Informative

    For organics (blood, fat) your best bet is an enzyme detergent (e.g. http://www.deconlabs.com/skincare/enzyte.htm). That will deal with anything on the surface. You'll then have to wash the computer down with alcohol (just a bottle of the spray cleaner) near any sockets/connectors or the water and residue left over will cause problems.

    Chances are that not much has actually penetrated the plastics. If it has, then use a shellac based sealer (e.g. http://www.zinsser.com/product_detail.asp?ProductI D=10). That will contain any volatiles and save you from having to replace the plastics. Obviously you can't shellac the entire thing, but doing the main panels will help.

    You'll probably have to replace the fans -- the lubricating oil holds the smells and there isn't much you can do about it, except to try and flush it away with more oil.

    Beyond that... you could try adding a charcoal filter to the cooling system to deal with the remaining odours, but I've never done it.

  9. WARNING: Ozone is a _very_ bad idea by hirschma · · Score: 5, Informative

    Ozone eats certain rubber parts in your computer.

    A friend of mine was having CD-ROM drives die every two or three _months_. Seems that his consumer ionizer was putting out enough ozone to eat the belts away. He stopped using the ionizer, and the problem went away.

    My guess is that ozone would also kill off hard drive gasket seals and even certain types of insulation material.

    Bad idea. Don't go here.

    1. Re:WARNING: Ozone is a _very_ bad idea by LauraScudder · · Score: 3, Informative

      Ozone will corrode almost anything. We had to overpressurize our lab at school because it was across the hall from the copy room. The ozone from the copiers was causing our silver mirrors to corrode very slowly. There's a reason it gets rid of odors so well: it reacts with almost everything.

  10. Re:ozone by Martix · · Score: 5, Informative

    O3 will eat and destroy plasics and is 1000% stronger then clorine for a disinfectent...I work with water treatment and it eats and destroys certin plastics and metals Not a good choce for this espesaly electronics.

  11. Removing odiferous organics from computers... by Anonymous Coward · · Score: 5, Informative

    The few times I've had to "disinfect" computers and other electronics with "creative" fragrances, I've used pure (reagant grade) ethyl alcohol [in a well ventilated and grounded work space] with solvent resistant gloves, an ultrasonic bath of coating safe electronics cleaner, tupperware dishes and miscellaneous hand tools (brushes, ball peen hammer, cold chisels, etc).. Ball peen hammers are very useful for removing encrustations and cooked on stuff.. You don't wanna know. Trust me.

    If you can replace the cases, do so. If not, dissasemble, remove power supplies, remove encrustations, and wash with bleach and hot water, then surgical soap and water.

    Standard floppy drives are replaceable. Too much of a hassle to clean.

    Harddrives are basically going to have to be removed, wiped with alcohol wipes, and then wiped down with some odor-neutralizing spray. Replace the drives after you get complete backups if any have errors.

    Powersupplies, if not replaceable, should be discharged (those caps can kill), blown out with compressed air, and then wiped down with alcohol wipes.

    CRT Monitors are going to be a bitch to clean. Replace if you can. If you can't replace, discharge all the capacitors, coils and the tube. Blow out with compressed air. Wipe down any sealed board level components and sealed surfaces with alcohol wipes. Don't get anything on any coils. Allow everything to air for 24 hrs before reassembly.

    LCD monitors should be disassembled, their cases washed with alcohol. Spritz down the electronics with coating-safe board cleaner. Use monitor-wipes on the LCD itself.

    Cables can either washed by hand, in a dishwasher (NOT HOT WATER! Max temp about 80F) or replaced. Replacement is easier.

    Keyboards, if replacements are not available, should have all batteries removed, large encrustatios removed by hand (use gloves!), blown out with compressed air, and be run through a dishwasher, again with no hot water, or washed with large amounts of alcohol. Allow to drain for at least 24 hrs (alcohol) or 48 hrs (water) under a fan before reusing.

    Boards: Remove any major encrustations of hardened tiss.. err.. organic matter by shaking, scraping, or chiseling. Soak in ethyl alcohol to loosen clotted material (in my case, literally.. again, don't ask) enough to brush/wipe most of it off. Immerse in electronics cleaner in ultrasonic bath on low. Board comes looking almost brand new. Allow to dry under a fan for several ours. Test, and reinstall.

    Replace all fans and filters if possible (easier than cleaning the damn things). Reassemble. Before closing the case, hang a couple of those pine-tree shaped air fresheners in the case.

    There are also a lot of forensic clean-up information websites out there.. Google is your friend. Hope this helps..

  12. ACL Staticide by Hal_9000@!!!@ · · Score: 4, Informative

    ACL Staticide is the stuff you're looking for. It is just as good as isopropyl as a solvent but is also an antistat... computer shops use it to clean computers (we use #1010 where I work). If you have any left over, you can mop your floors/clean your carpets with it to make them static-free.

    And it's even cheap!

    --
    My email is real.
  13. Re:Not pigs, but cigarettes by joe83 · · Score: 5, Informative

    Open up the cases, seal the room and run an ozone generator for 24 hours. Ozone generators can get rid of any odor permanently.

  14. Re:Not pigs, but cigarettes by eclectro · · Score: 4, Informative


    I worked in a large surface mount production facility. In the final stage of assembly, they would in fact go through a fancy dishwasher. Early on we didn't even use deionized water. They did switch to deionized water not so much for the fear of conductivity, but to not leave spots behind.

    You want to put tape (waterproof - packing tape might work) over any speakers, piezo devices, potentiometers, dip/pushbutton switches. Remove any batteries and button cells.

    Then stick it in the diswasher, I'd use electrasol. Also, skip the "drying" cycle and let it air dry. Where I live (Utah) the air is quite dry. It would be ideal to let it sit for a day in the summer sun. Then you are good to go.

    If you are not blessed with dry air but humid air, it may take more than a day to safely dry before you can plug it in.

    Under no conditions would I do this to vintage equipment, esp. tube equipment or even vintage transistor equipment. Old equipment will tend to crumble under the stress as old capacitors like to die (if they haven't already - google/get an ESR meter) and plastic will tend to crack. I would only do this for equipment from the mid eighties on. Before this time I would be judicious with the cleaning process. Like maybe not using hot water.

    Modern components however are made to face a dishwasher, and can withstand it nicely, unless the components are defective to begin with (like some bad electrolytics on motherboards).

    --
    Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
  15. Contact Drew Industrial Division by tweedlebait · · Score: 3, Informative

    They handle many nasty smell situations at beef packing and rendering facilities. Solution would probably include some enzymes to chew up most of the stuff and chlorine dioxide to kill off the bacteria, etc. They probably handle the odor control systems for stink exiting the plant too so there might be a tech at your plant every week or so who'd help you.

    There are several other companies that handle this type of situation as well.

    http://www.ashchem.com/ascc/drewind/

    --
    Firefox & /. ? Use this often:
  16. Re:Not pigs, but cigarettes by flushtwice · · Score: 5, Informative
    Someone needs to mod this one up. It's non-destructive to the electronic components, and does indeed destroy odors.

    Just remember to seal off the area during the process, and ventilate it well before re-entering as pure ozone can be just as deadly as carbon monoxide.

  17. Re:Discoloration by atrus · · Score: 3, Informative

    The picture tube is a giant lead lined piece of glass which contains a vacuum and doesn't hold a charge. What you have to watch out for is the capacitors on the high voltage power supply, which contain several kV of potential. And most picture tubes are amazingly tough (the older it gets the more fragile of course).

  18. Re:Not pigs, but cigarettes by SydShamino · · Score: 4, Informative

    Our company still has wash machines for a few products that can't use 'no clean' solder flux for whatever reason. Almost every product I've designed went through a de-ionized water wash at some point.

    Contrary to any widespread notion, almost every electronics component can survive being completely immersed/soaked in water. (It can even be beneficial, like when washing off acidic flux residues, or perhaps interesting smells.)

    What electronics cannot survive is being -powered- while wet, as the shorts could cause currents that could burn out semiconductors. So, make sure there are no batteries, or even charged capacitors, anywhere on the hardware.

    --
    It doesn't hurt to be nice.
  19. Pigs...MythBusters? was: Not pigs, but cigarettes by FlutterVertigo(gmail · · Score: 3, Informative

    After scrutinizing everything else posted, I'm surprised no one mentioned MythBusters - particularly because they've used dead pigs on several tests - detect buried bodies when the ground, including sidewalk, is ripped up, bodies buried, and sidewalk replaced - stench bubbling up through.

    One episode dealt with the issue of "...can a car which someone died in be cleaned up enough to be sold again?" They bought a fairly nice Corvette (although the owner was a bit hesitant when he heard what his baby was going to be used for), tossed two dead pigs in it, sealed the car as much as possible, then stashed it in a storage chamber to keep it out of the way.

    After some period of time (I don't remember how long it was), they donned bio-hazard suits & masks & set to pulling the car out & rescuing it (the car). Even with the masks on, it seemed pretty unbearable for Adam & Jamie. They worked pretty hard, using practically any suggested remedy they had heard of (and some of their adjunct folklore consultants).

    IIRC, they brought in a specialty firm to look at the situation. The owner didn't have any "assistance" for dealing with it (no suit, no mask, seemed unaffected -- they didn't say if he was one of those without a sense of smell). Anyway, his crew spent a lot of time using their proven techniques and nothing worked. They finally stripped the car of anything capable of holding an odor: hard & soft plastic, foam, straps, you name it. By the time they were done, all which was left was metal.

    Finally, it was time to [try to] sell it. People were rather inquisitive (regarding price and why they were so coy) and of course, the windows were up so as not to provide any advance notice to a prospect what might be lurking. Every time the door opened, however, ... you can guess the response. They finally sold it for parts.