info about fabricate septic tank system?
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http://home.howstuffworks.com/sewer.htm
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try the information on this website. http://www.epa.gov/oust/cat/sve1.htm
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collect garbage,clean public washrooms,clean a septic tank
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I have no experience in rotary airlock design but having several years experience with 'baghouse' filter systems in cement manufacturing plants, I can describe them. Email me if you get no answers.
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lottsa water. a toilet or commode is poured in a mould using a plaster of paris base.after its set up it has a u shaped trap to keep gasses from coming out and a water basin for sitting on after the seat is installed.it also has a water cabinet to hold water for flushing. this item of your interest was implemented by the roman people centuries ago.lots better than an outhouse isnt it?no wood splinters.
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http://www.watertiger.net/RO/how_ro_works.htm\nyou find it here
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Archive News Story\n(Products mentioned in this Archive News Story may or may not be available from the manufacturer.)\n\n\nFiltration System removes contaminants in hydraulic oil.\n\nJune 11, 2003 - Portable Hydraulic Oil Filtration System connects to injection molding machine oil reservoir through 2 lines and can be equipped with quick connect/disconnect fittings. Flow rates range from 3–24 gpm and filter through 3 filtration stages. Using cycle of passes through system, 98% of all contaminants are removed, extending hydraulic oil life 8–10 times or more.\nSend emailContact company\nCompany Profile at ThomasNet.com\ncompany web siteCompany web site\nmore company newsMore news from this company\nweb search for more informationSearch the industrial web for: "hydraulic oil heating in drum"\ndirectory searchSearch for suppliers of:\nFiltration Systems: Industrial Oil\n\nAdvertisement\n\nArchive Press Release\n(Products mentioned in this Archive Press Release may or may not be available from the manufacturer.)\n\n\nRelease date: June 6, 2003\n\nThe Leading Preventable Cause of Injection Molding Machine Breakdown is Hydraulic System Malfunction\n\nWithout proper maintenance, your hydraulic systems components life span may be reduced by up to 75%. This leads not only to costly equipment repair, but to expensive down time as well. Combine that with new, stricter environmental regulations concerning the disposal of waste oil, and you have a potential operating capital drain. With the application being Hydraulic oil, the primary degrader of oil, HEAT, is not a factor. Water and dirt particles are the enemies of the hydraulic oil.\n\nOur engineered process removes these contaminants¹ quickly and efficiently. Our portable systems will connect to the injection molding machine oil reservoir through two 1² lines. The units can be equipped with quick connect/disconnect fittings. The flow rates range from 3 ­ 24 GPM and filter through three filtration stages. Using a cycle of passes through the system, 98 percent of all contaminants are removed from the hydraulic oil. This simple service can extend your hydraulic oil life 8 ­ 10 times or more.\n\nThe Glanon Hydraulic Oil Filtration System is shipped from the factory equipped and ready for immediate service. Portable and easily maneuverable, this system can service multiple Injection Molding Machines in a single day.\n\nAn Injection Molding Machine can easily be serviced without manually draining and refilling the oil. Hydraulic system maintenance hours will be reduced, oil life will be increased, and environmental impact will be minimized.
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A paper writen by Karen Manci, Ohio State Univ, College of Food and Evironmental Sciences is helpful:\n\nWastewater Treatment Principles and Regulations\nAEX-768-96\n\nSewage is the wastewater released by residences, businesses and industries in a community. It is 99.94 percent water, with only 0.06 percent of the wastewater dissolved and suspended solid material. The cloudiness of sewage is caused by suspended particles which in untreated sewage ranges from 100 to 350 mg/l. A measure of the strength of the wastewater is biochemical oxygen demand, or BOD5. The BOD5 measures the amount of oxygen microorganisms require in five days to break down sewage. Untreated sewage has a BOD5 ranging from 100 mg/l to 300 mg/l. Pathogens or disease-causing organisms are present in sewage. Coliform bacteria are used as an indicator of disease-causing organisms. Sewage also contains nutrients (such as ammonia and phosphorus), minerals, and metals. Ammonia can range from 12 to 50 mg/l and phosphorus can range from 6 to 20 mg/l in untreated sewage. \n\nSewage treatment is a multi-stage process to renovate wastewater before it reenters a body of water, is applied to the land or is reused. The goal is to reduce or remove organic matter, solids, nutrients, disease-causing organisms and other pollutants from wastewater. Each receiving body of water has limits to the amount of pollutants it can receive without degradation. Therefore, each sewage treatment plant must hold a permit listing the allowable levels of BOD5, suspended solids, coliform bacteria and other pollutants. The discharge permits are called NPDES permits which stands for the National Pollutant Discharge Elimination System. \n\nPreliminary Treatment\nPreliminary treatment to screen out, grind up, or separate debris is the first step in wastewater treatment. Sticks, rags, large food particles, sand, gravel, toys, etc., are removed at this stage to protect the pumping and other equipment in the treatment plant. Treatment equipment such as bar screens, comminutors (a large version of a garbage disposal), and grit chambers are used as the wastewater first enters a treatment plant. The collected debris is usually disposed of in a landfill. \n\nPrimary Treatment\nPrimary treatment is the second step in treatment and separates suspended solids and greases from wastewater. Waste-water is held in a quiet tank for several hours allowing the particles to settle to the bottom and the greases to float to the top. The solids drawn off the bottom and skimmed off the top receive further treatment as sludge. The clarified wastewater flows on to the next stage of wastewater treatment. Clarifiers and septic tanks are usually used to provide primary treatment. \n\nSecondary Treatment\nSecondary treatment is a biological treatment process to remove dissolved organic matter from wastewater. Sewage microorganisms are cultivated and added to the wastewater. The microorganisms absorb organic matter from sewage as their food supply. Three approaches are used to accomplish secondary treatment; fixed film, suspended film and lagoon systems. \nFixed Film Systems\nFixed film systems grow microorganisms on substrates such as rocks, sand or plastic. The wastewater is spread over the substrate, allowing the wastewater to flow past the film of microorganisms fixed to the substrate. As organic matter and nutrients are absorbed from the wastewater, the film of microorganisms grows and thickens. Trickling filters, rotating biological contactors, and sand filters are examples of fixed film systems. \n\nSuspended Film Systems\nSuspended film systems stir and suspend microorganisms in wastewater. As the microorganisms absorb organic matter and nutrients from the wastewater they grow in size and number. After the microorganisms have been suspended in the wastewater for several hours, they are settled out as a sludge. Some of the sludge is pumped back into the incoming wastewater to provide "seed" microorganisms. The
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oh, and the smell!!  The ring is nothing, once the water gets bellow the p-trap it will be an open airway to the sewer/septic.  All that gas will come waffing up out of the toilet.
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Some info at http://www.aquapurefilters.com/contaminates/165/toc.html and at http://www.stateoftheart.it/toc-2.htm
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hi.\ncheck your controls, are they enough to prevent spilferages, window dressing, leakages, etc.\nthen check also your operations policies, is it making good effect on the income of the company? they might have been so much workers for an ample task. check also that your people are happy working for you?
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It is called "Helios" and it uses liquid oxygen, thus a larger and longer lasting supply can be carried in a smaller unit.  You can get it from your Oxygen suppiler. You will need to ask your doctor to write a prescription (he or she will be happy to).\n\nYou will be checked out by your O2 supplier company's therapist to see how well you do using a "demand" type O2 system (as opposed to a constant flow like you're probably using now).  You still will use the same delivery device you're using now, i.e., nasal cannula or mask.  The "demand" system "senses" when you inhale and delivers O2 through the nasal cannula.\n\nYou will be furnished the Helios unit and a large drum size liquid O2 storage container.  You refill the Helios unit from the storage unit, and your supplier periodically refills the storage unit.  It's all covered under your insurance the same as your other O2 supplies.\n\nSource: myself, I'm ordering one this week.  Just discussed it with the doctor.  I'm tired of lugging those bottles around and running out all the time.\n\nOh, and I believe you can also use the system 24/7, and if so, then bye-bye noisy concentrator unit!!!\n\nAlso, at usage under 4L/Min, the Helios can last 20 hours,\nand they have a travel companion available which is basically a smaller storage tank you can easily portage\nfor longer trips -- a definite desireable!\n\nHeres the website for Helios:\nhttp://www.heliosoxygen.com/index.aspx\n\nHope it works out for you!  And, me too!
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a cistern for a septic system
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I am a wastewater treatment engineer.  \n\nThere are professional organizations that may have some info, try Water Environment Federation.  \n\nAny questions, drop me a line
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I can not answer your question, but if you contact some distributors or manufacturers of tanks they may be able to help you.\n\nGood luck!
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To do it accurately you may need a PhD. \nOtherwise, build a trough with an uneven bottom.  Then build a ramp to the trough.  On the top of the ramp have a bucket that is constantly being filled with water from a fish tank pump.  Make the bucket so that when it is filled to a certain level it tips and pours down the ramp into the trough.
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The answerer above said is correct BUT the pipe fabricator do fabricate the pipes according to the route and requirements such as making bends curves etc (using cutting torch etc) where as most of the case plumbers do install the ready made stuff (though there is cutting and trimming is involved) of sanitary systems.