disposal of chemicals?
78613
Drain and Trash Disposal of Chemicals \n\nThe disposal of chemicals via a sink drain and/or normal trash is highly-regulated and subject to public concern and scrutiny. Federal, state, and city government agencies have established rules and regulations which strictly limit chemical disposal to the sewer and trash. These rules and regulations have been established to protect human health and the environment from an exposure to hazardous substances, as well as to prevent damage to the City’s water treatment facilities.\n\nIn addition, all of the College’s refuse waste is collected, handled, and processed by numerous persons prior to its ultimate disposal. During this period, the potential for containers to break and expose person(s) to an “unknown” chemical could be significant. Furthermore, with the increased public alarm and concern about chemical and biological agents being released to the public, it has been determined that it is in the College’s and public’s best interests to not allow the disposal of containers of chemicals via the normal trash.\n\nThis Update shall provide instruction to determine if a chemical is acceptable for drain or trash disposal.
986415
You can probably obtain some from schools in the USA who just want to get rid of it.  It is so expensive to dispose of liquid mercury that you may be able to find a school which will even pay the shipping cost as long as you will take it.
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You may consider Recycling.\n\nWe are in the export business of Recyclable Waste PET (Polyethylene Terephthalate) Bottle Flakes. These bottle flakes are used to produce PSF and PSY for the production of yarns and cloths, by mixing recycled flakes with virgin pet-chips, thereby reducing cost of production as well as cleaner environment.\n\nWaste management is the collection, transport, processing (waste treatment), recycling or disposal of waste materials, usually ones produced by human activity, in an effort to reduce their effect on human health or local aesthetics or amenity. A subfocus in recent decades has been to reduce waste materials' effect on the natural world and the environment and to recover resources from them.\n\nWaste management can involve solid, liquid or gaseous with different methods and fields of expertise for each.\n\nWaste management practices differ for developed and developing nations, for urban and rural areas, and for residential, industrial, and commercial producers. Waste management for non-hazardous residential and institutional waste in metropolitan areas is usually the responsibility of local government authorities, while management for non-hazardous commercial and industrial waste is usually the responsibility of the generator.\n\nWaste management concepts: Waste management has a number of different concepts, which vary in their usage between countries or regions.\n\nThe waste hierarchy: Reduce, Reuse, Recycle: The waste hierarchy classifies waste management strategies according to their desirability. The waste hierarchy has taken many forms over the past decade, but the basic concept has remained the cornerstone of most waste minimisation strategies. The aim of the waste hierarchy is to extract the maximum practical benefits from products and to generate the minimum amount of waste.\n\nSome waste management experts have recently incorporated a 'fourth R': "Re-think", with the implied meaning that the present system may have fundamental flaws, and that a thoroughly effective system of waste management may need an entirely new way of looking at waste. Some "re-think" solutions may be counter-intuitive, such as cutting fabric patterns with slightly more "waste material" left -- the now larger scraps are then used for cutting small parts of the pattern, resulting in a decrease in net waste. This type of solution is by no means limited to the clothing industry. Source reduction involves efforts to reduce hazardous waste and other materials by modifying industrial production. Source reduction methods involve changes in manufacturing technology, raw material inputs, and product formulation. At times, the term "pollution prevention" may refer to source reduction.\n\nAnother method of source reduction is to increase incentives for recycling. Many communities in the United States are implementing variable rate pricing for waste disposal (also known as Pay As You Throw - PAYT) which has been effective in reducing the size of the municipal waste stream.\n\nSource reduction is typically measured by efficiencies and cutbacks in waste. Toxics use reduction is a more controversial approach to source reduction that targets and measures reductions in the upstream use of toxic materials. Toxics use reduction emphasizes the more preventive aspects of source reduction but, due to its emphasis on toxic chemical inputs, has been opposed more vigorously by chemical manufacturers. Toxics use reduction programs have been set up by legislation in some states, e.g., Massachusetts, New Jersey and Oregon.\n\nResource recovery: A relatively recent idea in waste management has been to treat the waste material as a resource to be exploited, instead of simply a challenge to be managed and disposed of. There are a number of different methods by which resources may be extracted from waste: the materials may be extracted and recycled, or the calorific content of the waste may be
781072
useful substances enter and waste products exit of course.\nuseful substances include glucose, oxygen, amino acids, etc.\nwaste products would be carbon dioxide, urea, etc.
732933
Oxidising chemicals (of industrial strength) should not be stored next to oxidisable materials. These generally would be flammables such as organic solvents.\n\nCorrosive chemicals are not necessarily oxidisable.
476725
Drop Mg or Zn or something like that in HCl.  Or use electrolysis on water, but that's a lot harder.
875231
Call your city sanitary waste department.  They usually have a place you can take hazardous materials....
236000
I would guess it would include old solar panels and various pipes, etc. that no longer function.  There would also be industrial waste from the manufacturing of this material (air pollution, water pollution, etc.)
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Ultrasonic cleaners might be the best solution.\n\nHere is an excerpt from the source listed below: \n\nAlthough a range of possible alternative products is available today, experience has shown that substitution of TRI is not easy and even not feasible for a number of specific cases, either for technical or economical reasons. For all cases, substitution of TRI needs a thorough evaluation of all process aspects. For this reason we intend to work with the authorities in order to prevent a blanket implementation of forced substitution, and allow sustainable and continued safe use of TRI. \n\nThe alternatives you will probably consider first are the chlorinated solvents perchloroethylene (PER) and methylene chloride (MC). They match closest the technical features of TRI, such as non-flammability, high solvency power, a wide range of material compatibility and excellent drying and recycling properties.\n\nBeside PER and MC, you have probably also heard about other alternatives such as aqueous (water-based) alkaline systems, flammable solvents (e.g. hydrocarbons or modified alcohol based formulations), supercritical CO2 or hydrofluorocarbons (HFCs), etc.\n\nIt is impossible to say definitively which technology is best. That depends on your specific application, on what you are cleaning, which materials you want to remove, the cleanliness required, the variability of the parts cleaned, the throughput to be achieved, the cycle times, etc. \n\nFor example, for the cleaning of parts between two water-based manufacturing steps (e.g. galvanising), aqueous systems may be better, since parts are put into water phase again later and no energy-intensive drying step to remove the water is required. \n\nIf you need to have very clean and dry surfaces (for coating or surface hardening, for example) and if you have a variety of different metals or blind holes, narrow distances and very fine orifices or a lot of residual oil to clean, hydrocarbons or aqueous systems may not clean and dry well enough. In these cases, chlorinated solvents will offer most often the best solution as they are compatible with most materials, have a high cleaning power, are easy to dry, don't leave residual films and are easy to recycle with high quality by distillation. In addition, chlorinated solvents are today best suited to be used in modern closed systems with minimal losses. Their ecological performance has very much increased and, when used in well-operated metal cleaning systems, they outperform aqueous cleaning as long as drying is required. This has been shown by a Life Cycle Analysis carried out by Ecobilan. \n\nPER comes closest to TRI in technical performance and is often the first choice candidate as an alternative to TRI. However, it shows clear inherent technical differences, which need to be taken into consideration. On one side, PER offers a lower volatility and therefore is advantageous to minimise emissions in closed equipment. On the other side, PER has a lower solvency power and is therefore normally used at a higher cleaning temperature to achieve similar performance. This may raise concerns regarding the compatibility with specific metal working fluids and temperature-sensitive parts. \n\nMethylene chloride (MC) shows excellent cleaning properties already at low temperatures, favouring the cleaning of temperature sensitive parts. However, its high volatility makes emission control more difficult and requires special equipment.\n\nHydrofluorocarbons (HFC) and hydrofluorocarbon ethers (HFCE) are very expensive and show very limited solvency power. A thorough evaluation of the global warming potential is also required to choose the adequate product.
465076
Convert the waste into forms that can be used for thermal reactors.
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i don't really know about this but i'm fairly sure i can give a better answer than lrisjqoijgjr  \n\nyou could probably use a surfactant to break down the molecular attraction between the water molecules but this would leave pollution through the path of whatever you were using to travel through the water\n\nbut yeah not really practical but better than uingnpds
352374
We can recycle so that today's garbage could be tomorrow's stuff.\nDon't throw out - recycle!
798405
You may not know whether the expired medicine you have is with hazardous wastes or not. So the best way to dispose expired medicines is to take them to a nearby pharmacy or bring them to one of the FREE Safe Medicine Disposal events for proper disposal.\n\nThere are health risks associated with expired prescriptions  thrown in the trash. When you throw expired medicine in the trash, children and pets can get into these drugs and once in landfills, the drugs can trickle into groundwater.\n\nFlushing expired medications down the drain used to be the common solution. However, according to a study conducted four years ago by the United States Geological Survey, 80 percent of 139 streams sampled across 30 states detected very low concentrations of chemicals commonly found in prescription drugs. Flushing expired drugs can kill helpful bacteria in septic systems and pass largely untouched through sewage treatment plants. Disposing of unwanted medicines down the drain or in toilets can harm aquatic life in the Bay and Pacifi c Ocean. Even\nthough wastewater is treated before it is discharged to the Bay and Pacific Ocean, wastewater treatment facilities are not designed to remove medications.♥
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well you can put what you should recycle. how recycling will help. like it'll help air pollution,water pollution, and stuff like that. state all the bad things that will happen if you don't recycle.
643157
don't just throw it away. There are toxic gases in it.
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It would depend on what the nature is of the unwanted impurities. One could use chemical separation or distillation.  Distillation would be the easiest.
663186
Paint stores dispose of paint by pouring it out in thin layers and letting it dry. Once it's dry, it's environmentally benign and can be thrown away.