How do disinfectants destroy bacteria?
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Bleach\nBleach is also known by its formal chemical name as sodium \nhypochlorite.In solution, the sodium hypochlorite dissociates, or dissolves, to produce atomic oxygen and \nchlorine. The chlorine and oxygen are very reactive, negatively-charged elements that oxidize components of the bacterial cell.  This oxidation prevents effective operation of the cell's machinery, and the bacterium \ndies.\n\nDetergents\n  Detergents are comprised of long molecules with \nvery different ends. In some types of detergents, one end of the molecule \nis positively charged (insoluble in water), and the other is negatively \ncharged (soluble in water).  These molecules wiggle their way in between \nthe lipids of the bacterium's membrane and cause the cell to spill its \ncontents into the environment, killing the cell.\n\nIodine\nDilute solutions (as little as 1%) of iodine work in much the same way as \nthe chlorine described above.  Looking at a periodic chart, you'll even \nnotice that chlorine and iodine are in the same halogen family, hence their \ncommon mode of action.  Negatively charged iodine combines with proteins \nand disrupts their ability to function normally.\n\nPhenolics\n  There are a variety of phenolics used as disinfectants.  Lysol is perhaps the most famous.  This class of disinfectants works by disrupting proteins, \na common theme as we have seen, but also by disrupting the lipid membrane.  A leaky or broken membrane in addition to faulty proteins are problems too severe for the bacterium to fix in time, and it dies.  Phenolics are also \nbacteriostatic.\n\n  All the disinfectants described above work in an indiscriminate \nmanner.  For example, the chlorine ions bind to many kinds of proteins, not \njust one.  Phenolics cause many types of bacterial species to have leaky \nmembranes.  it is highly unlikely that every protein in a cell will evolve \nan ability to resist the effects of chlorine. \n\nTriclosan \nHere is a disinfectant that does discriminate, or is picky about its \ntarget in a bacterial cell.  You have probably noticed quite a lot of \n"antibacterial" products on the store shelves in recent years.  The active \ningredient in these soaps and detergents is an antibiotic known as \nTriclosan.  Triclosan, however, kills bacteria by acting on a single \nspecific protein that is necessary for the bacterium to make an effective \nlipid membrane.  If this one protein evolves to resist the action of \nTriclosan, Triclosan will no longer be able to kill those bacteria with the \nnew version of the protein.  Scientists are debating the effects of \nbacterial resistance to Triclosan, and the following article will give you \nmore details on a hot topic in the scientific world.\n\nAlcohol \nEthanol (an ingredient in table \nwine) and Isopropanol (also known as rubbing alcohol and poisonous to \nhumans) are very commonly used.  These disinfectants disrupt the structure \nof proteins in the bacteria.  If the proteins are disrupted, or denatured, \nthey cannot perform their highly specific tasks, and the bacterium dies.
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It breaks down the cell wall of the bacteria.
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Antibiotics kill targeted bacteria cells by either interfering with the cell membrane formation, killing organelles, or stopping cell division.\n\nViruses are different from bacteria cells - instead of a cell membrane, they have a hard protein coat. In fact all they are is a hard protein coat with DNA jammed inside. They are also very very small. Many scientists would tell you that they aren't even living things. \n\nAntibiotics do not work against viruses because viruses do not have soft cell membranes or organelles to kill. They don't multiply by themselves either (They inject their DNA into real cells and get their hosts to do the work)
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Not much, actually-You dont want something that kills the bacteria in the mouth, because they are the primary protection against even worse things.  People who have to take very high doses of antibiotics often loss the bacteria in the mouth, and then have things like thrush, yeast, even massive fungal infections-and these are extremely hard to treat.  Toothpaste just scrapes the bacteria off the tooth, so the acidic waste products of the bacteria dont eat away the enamel.
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It literally slows the bacteria that make it spoil down. It also inhibits some chemical processes like oxidation.
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Alcohol is one of the top ingredients in disinfectants.
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it's totally depends on the type of the bacteria!\n1)sterilization:fungi is so sentitive to this condition.but if the bacteria is the kind that produce endospore then this method is not useful\n2)pasteurization:kills all the bacterias except the one couses Query\n3)filterization:useful for bacterias except Mycoplasma\n4)Rays like UV X and Gamma\n5)chemical Gases which are mutagenes like rays\n6)chemical liquids
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as libby said, washing your hands is getting rid of bacteria through friction.  as for using waterless, antibacterial stuff, it kills every single microbe on your hands.  the thing is, you have billions of microbes all over you hands and body that actually work to kill the bad germs.  these are called your natural flora.  the bad germs are called transient microbes, these are the ones that cause disease.  if you kill your good germs, you have a much higher chance of getting sick, because those good germs aren't there to kill the bad ones.  best bet is to use plain old regular soap in a pump-dispener, not a bar (which can harbor bad germs)
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A number of stages is necessary:\n\n1. Filtration - To remove particles, can be any filter.\n2. Odor removal - Use charcoal\n3. Ultraviolet treatment - To kill most germs\n4. Reverse osmosis
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baking soda I heard works, you can also use peroxide...which is good for killing bacteria, but dont swallow it
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An autoclave is a sterilizer, it kills bacteria.  \n\nThe essence of an autoclave is that it kills bacteria by applying a lot of heat and a lot of pressure.\n\nA hot air oven is just that, an oven that blows hot air.
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kill bacteria and viruses in the bloodstream
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Not all products can kill all bacteria since there are a lot of strains of bacteria which require different chemicals to exterminate them. They have to account for marginal errors in their claims because it is not at all times that a product can kill certain bacterias since others develop resistance or others are weakened but still alive but multiplicity properties are impaired, others get weakened then recover again to multiply. that is what happens to the .1% that is left.
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Moisture improves heat penetration, making sterilization by moist heat more effective then dry heat. Killing microorganisms by dry heat is a lengthy process that requires high temperatures. On the other hand, most yeasts, molds, and bacteria can be killed using moist heat at 80°C for 10 minutes. These conditions are not sufficient to inactivate mold or bacteria spores, which are more heat-resistant than cells in their vegetative states.\n\nBacterial spores require exposure to moist heat at temperatures of 121°C (achieved under high-pressure conditions) for at least 15 minutes for inactivation. The "gold standard" for heat sterilizatin is inactivation of Bacillus stearothermophilus spores. If heat treatment was sufficient to inactivate test strips containing these spores, then the sterilization is considered successful.\n\nIt is important to note that there are rare types of bacteria which are capable of growing at high temperatures. These bacteria are classified as thermophiles and hyperthemophiles. Bacillus stearothermophilus is a thermophile. These organisms normally growth in unusually hot environments, including hot springs and deep-sea vents. Clearly sterilization by heat may not be the most efficient method to eliminate these types of bacteria, but they are almost never found in common environments.
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The only thing I can suggest is a ozone generator, I know it can kill odors, fungus, viruses and bacteria. It is a strong oxidant ans may work.
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Bleach may clean mold off a surface, but it does not kill spores or penetrate porous materials where mold hides. For safe and effective killing of mold, only EPA approved, environmentally safe, biodegradable cleaners should be used. Additionally, it is always best to force dry the area after applying anything wet. Finally, a proven enzyme based product specifically designed to return the environment back into a natural, healthy state should be used to complete the remediation process.\n\nThere is no way to eliminate all molds and mold spores in your home.\nThe only way to control indoor mold growth is to control the moisture. If mold is a problem in your home or building, you must clean up the mold and eliminate the moisture sources.
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My best guess would be chlorine.  Chlorine is harmful to humans if its concentrated enough (certainly could be concentrated enough in a chamber), and kills bacteria in water which is why it is used in water distribution.