How does Ames,Iowa, clean their sewer water?
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All sewage treament plants are regulated by the government, so they have standards:\n\nThe conventional sewage treatment process typically involves the following three stages:\n\nPrimary treatment - to settle out solids \nSecondary treatment - to remove the dissolved and emulsified components \nTertiary treatment - to make the effluent fit to be received in the environment. \nThe site where the process is conducted is called a sewage treatment plant. The flow scheme of a sewage treatment plant is generally the same for all countries:\n\nMechanical treatment; \nInflux \nRemoval of large objects \nRemoval of sand \nPre-precipitation \nBiological treatment; \nHigh-charged and low-charged purification systems \nOxidation bed (oxidizing bed) \nAerated systems \nPost precipitation \nEffluent \nChemical treatment (this step is usually combined with settling and other processes to remove solids, such as filtration. The combination is referred to in the US as physical-chemical treatment. It is rarely used along with biological treatment.). \n\nPrimary treatment\nPrimary treatment is to reduce oils, grease, fats, sand, grit, and coarse (settleable) solids. This step is done entirely with machinery, hence the name mechanical treatment.\n\n\nInflux and removal of large objects\nIn the mechanical treatment, the influx of sewage water is strained to remove all large objects that are deposited in the sewer system, such as condoms, sanitary towels (sanitary napkins) or tampons, cans, fruit, etc. This is most commonly done using a manual or automated mechanically raked screen. This type of waste is removed because it can damage the sensitive equipment in the sewage treatment plant.\n\n\nSand and grit removal\nThis stage typically includes a sand or grit channel where the velocity of the incoming wastewater is carefully controlled to allow sand grit and stones to settle but still maintain the majority of the organic material within the flow. This equipment is called a detritor or sand catcher. Sand grit and stones need to be removed early in the process to avoid damage to pumps and other equipment in the remaining treatment stages. Sometimes there is a sand washer (grit classifier) followed by a conveyor that transports the sand to a container for disposal. The contents from the sand catcher may be fed into the incinerator in a sludge processing plant but in many cases the sand and grit is sent to a land-fill.\n\n\nScreening or maceration\nThe grit free liquid is then passed through fixed or rotating screens to remove floating and larger material such as rags. Screenings are collected and may be returned to the sludge treatment plant or may be disposed of off site by landfilling or incineration. Maceration, in which solids are cut into small particles through the use of rotating knife edges mounted on a revolving cylinder, is used in plants that are able to process this particulate waste. Macerators are, however, more expensive to maintain and are less reliable than physical screens.\n\n\nSedimentation\n \nPrimary sedimentation tank at a rural treatment plantIn almost all plants there is a sedimentation stage where the sewage is allowed to pass through large circular or rectangular tanks. The tanks are large enough that faecal solids can settle and floating material such as grease and plastics can rise to the surface and be skimmed off. The main purpose of the primary stage is to produce a generally homogeneous liquid capable of being treated biologically and a sludge that can be separately treated or processed. Primary settlement tanks are usually equipped with mechanically driven scrapers that continually drive the collected sludge towards a hopper in the base of the tank from where it can be pumped to further sludge treatment stages.\n\n\nSecondary treatment\nSecondary treatment is designed to substantially degrade the biological content of the sewage such as are derived from human waste, food waste, soaps and detergent. The majority of muni
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Search through the wastewater links at \nhttp://www.itt.edu/staff/boyter/links/index.html#WASTEWATER
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People need to be aware that everything we throw on the ground goes to the sewer that goes to the ocean.  I live near where the sewers empty into the ocean and its gross;  after it rains there is so much trash.  I thought people who littered were pigs before I saw that,  your neighbors children are being badly brought up.
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1. The EPA has set maximum amounts of contaminents for drinking water. here is a table http://www.water-research.net/standards.htm\n\n2. You could use ultra-violet, this works well, also ozination.\n\n3. A gallon jug of household bleach down the well casing usually does the job. After dumping the bleach in, run water at every spigot in the house until you smell bleach. shut water off and let sit for 12 hours, then run water until color is clear and smell has dissipated.\n\n4> ?
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wash it with fresh water
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Hmmm... judging by your interest in cleaning products and dishwashing detergents, I'm guessing you're in that industry or just a student looking for some answers for a project.\n\n-Insufficient data - \nAre you referring to dishwater in a more sterile kitchen or a dirty restaurant?  Is the piping clean or are we talking rusty piping?  Filtered water or non filtered water? Hmmm... so, at STP you want to figure out this. \n\nHere's what you would need.  First figure out the type of microbes that would typically exist in your sink.  Or if you don't have one, get some kind of bacteria.  Take the whole thing, perform your experiment.  Take some water samples.  Finally, send the water samples to a lab immediately for a count.  You could get a concentration of microbes per given volume.  My advice -- it's all I can do.
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You could contact your local EPA office.
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Ecolab is a client of mine. I sell them janitorial supplies. A friend of mine also works with them. They seem to be a profitable company.
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Reclaimed water \nReclaimed water is wastewater (sewage) that has been highly treated and purified, and is as clean as (or more commonly, cleaner than) standard drinking water. Reclaimed water is frequently used to irrigate golf courses and parks, fill decorative fountains, and fight fires. It can also be used to irrigate crops, as long as they will be peeled or boiled before human consumption.\n\nUsing reclaimed water has many benefits. It conserves drinking water, is less expensive, and contains higher levels of nitrogen and phosphorus, which help fertilize plants.\n\nThe costs involved with recycled water typically exceed those of standard potable water in most regions of the world, where a fresh water supply is plentiful. However, in areas where supplies of fresh water are limited, treating wastewater for reuse in certain applications is becoming an economically attractive option. This is why many cities in Southwestern United States make use of reclaimed water.\n\nReclaimed water is not directly mixed with potable (drinking) water, even though it is usually cleaner than drinking water. This is because the extra filtering processes may remove minerals that are present in standard drinking water, and also because humans may face psychological barriers against drinking reclaimed water. Many cities actually ban citizens from drinking, bathing in, or filling swimming pools with reclaimed water, although the risk of harmful effects associated with doing so are very low. If you irrigate your lawn or plants with reclaimed water, you should place a sign on your property warning people not to drink from the irrigation system.\n\nOn the other hand, many cities are now investigating indirect potable use of reclaimed water. For example, reclaimed water may be pumped into reservoirs where it will mix with (and be diluted by) rainwater. This mixture of rainwater and reclaimed water could then be treated again, and finally used as drinking water.\n\nMany large cities using water from rivers are inevitably using water that came from treated sewage discharged upstream. London water had a reputation of having been drunk five times before it arrived at the tap, but this is an exaggeration. There are many large towns on the River Thames upstream of London (Oxford, Reading, Swindon, Bracknell, etc.) whose sewage discharge is subsequently used to supply London with water. This phenomenon is also observed in the United States, where the Mississippi River serves both as the destination of sewage treatment plant effluent, and the source of potable water. Research in the 1960's (London Metropolitan Water Board) demonstrated that the maximum extent of re-cycling water is about 11 times before the taste of water induces nausea in sensitive individuals. This is caused by the build up of inorganic ions such as Cl-, SO4--, K+ and Na+ in the water. Such ions are not removed or reduced by conventional sewage treatment.\n\nReclaimed water is distributed with a dual piping network that keeps reclaimed water pipes completely separate from potable water pipes. In the United States, reclaimed water is always distributed in lavender (light purple) pipes to distinguish it from potable water.\n\nIn many cities using reclaimed water, it is now in such demand that consumers are only allowed to use it on assigned days. Some cities that previously offered unlimited reclaimed water at a flat rate are now beginning to charge citizens by the amount they use.\n\nIn Singapore, reclaimed water may be labeled NEWater.\n\nA less elaborate alternative to reclaimed water is a greywater system. Grey water is water that has been used in sinks, washing machines or showers, but does not contain sewage (blackwater). In a home system, untreated grey water may be used to flush toilets or for irrigation. In a city-wide system, grey water may flow in a set of pipes separate from other sewage to a treatment plant, where it can be treated and used in similar ways as reclaimed water.
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OK if you mean water only I assume that you require to dry out compressed air lines.  This is done by passing the air through an air drier as the air is cooled the water is separated and discharged to atmosphere or drain.  This is one method I am not sure about others.
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Pollution of air and water by factories in the US  :D
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Call a Sewer Service--they have equipment to thaw it out----don't try it on your own!!!!!  Been there --done that
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I dont think so. Giardia is a microscopic beastie that gets into you from contaminated water. I think you have to have some kind of treatment.
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Depends on your location. Septic tanks, sewer ponds, composting toilets or even outhouses. The problem is, each method is crappy.
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sewer.\n\nJust kidding.  lol....
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Wastewater Treatment is a very secure business.  Working for a City or County gives good benefits.
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step 1: place a bunch of buckets around your school\nstep 2: after a rainy day collect all the water from the buckets.\nstep3: boil the water to kill all the bacteria in it.