Separation and processing of mass solid waste?
444685
Good for the environment.
1012965
Firstly you can put aside things that you can possibly reuse. Such as papers which are used on one side, empty mineral water bottles, microwavable food containers. Then sort out the rest of your trash into paper, plastic and metallic categories and put them into different bags. The others, you can place them in another bag. This will ease waste collection centre in sorting them. \n\nFor 2nd hand clothes, you can auction it off on Yahoo! auctions or participate in flea markets at Tanglin Mall every weekend. You can also give it away along with your used furniture to the Salvation Army headquarters at Bishan central and they'll resell it to other people. By the way, they provide free transportation services if you're giving away your furniture. So worry not about spending more money to move your trash away.
1106326
Yes.\n\nStealing garbage is a crime - so recycling would fall under that statute.
788031
take it to your local hazardis waste material center, they should know what to do with it:)
1050868
Treatment and disposal of municipal waste\n\nAs cities are growing in size with a rise in the population, the amount of waste generated is increasing becoming unmanageable. The local corporations have adapted different methods for the disposal of waste – open dumps, landfills, sanitary landfills, and incineration plants. One of the important methods of waste treatment is composting.\n\n\n1. Open dumps \n\nOpen dumps refer to uncovered areas that are used to dump solid waste of all kinds. The waste is untreated, uncovered, and not segregated. It is the breeding ground for flies, rats, and other insects that spread disease. The rainwater run-off from these dumps contaminates nearby land and water thereby spreading disease. In some countries, open dumps are being phased out. \n\n2.Landfills \n\nLandfills are generally located in urban areas where a large amount of waste is generated and has to be dumped in a common place. Unlike an open dump, it is a pit that is dug in the ground. The garbage is dumped and the pit is covered thus preventing the breeding of flies and rats. At the end of each day, a layer of soil is scattered on top of it and some mechanism, usually an earth-moving equipment is used to compress the garbage, which now forms a cell. Thus, every day, garbage is dumped and becomes a cell. After the landfill is full, the area is covered with a thick layer of mud and the site can thereafter be developed as a parking lot or a park.\n\nLandfills have many problems. All types of waste is dumped in landfills and when water seeps through them it gets contaminated and in turn pollutes the surrounding area. This contamination of groundwater and soil through landfills is known as leaching.\n\n3. Sanitary landfills\n\nAn alternative to landfills which will solve the problem of leaching to some extent, is a sanitary landfill which is more hygienic and built in a methodical manner. These are lined with materials that are impermeable such as plastics and clay, and are also built over impermeable soil. Constructing sanitary landfills is very costly and they are have their own problems. Some authorities claim that often the plastic liner develops cracks as it reacts with various chemical solvents present in the waste. \n\nThe rate of decomposition in sanitary landfills is also extremely variable. This can be due to the fact that less oxygen is available as the garbage is compressed very tightly. It has also been observed that some biodegradable materials do not decompose in a landfill. Another major problem is the development of methane gas, which occurs when little oxygen is present, i.e. during anaerobic decomposition. In some countries, the methane being produced from sanitary landfills is tapped and sold as fuel.\n\n4. Incineration plants\n\nThis process of burning waste in large furnaces is known as incineration. In these plants the recyclable material is segregated and the rest of the material is burnt. At the end of the process all that is left behind is ash. During the process some of the ash floats out with the hot air. This is called fly ash. Both the fly ash and the ash that is left in the furnace after burning have high concentrations of dangerous toxins such as dioxins and heavy metals. Disposing of this ash is a problem. The ash that is buried at the landfills leaches the area and cause severe contamination. \n\nBurning garbage is not a clean process as it produces tonnes of toxic ash and pollutes the air and water. A large amount of the waste that is burnt here can be recovered and recycled. In fact, at present, incineration is kept as the last resort and is used mainly for treating the infectious waste.
22413
I would recommend looking into a study of a cleaning(cleanability vs surface finish) for processing equipment in the pharmaceutical industries. This has not been performed to my knowledge(I have thought about performing and writing a paper but haven't had the time), should be reasonably simple to to perform, and would open oppertunities into a growth industry.
444550
The difference in solubility of the components allows for separation.  I don't remember the specifics, but that is the reason.  Water will not have a big enough difference.
832784
Filter the solid out of the mother liquor and let it air dry or store it in an open container in a dessicator or bake it in an oven or...\nyou get the idea.
448305
That's where you scrape the TLC coating where your analyte of interest makes a spot.  Then you can dissolve the analyte using a suitable solvent and centrifuge to let the TLC solid stationary phase settle to the bottom.\n\nThis process allows you to separate an analyte of interest from other compounds it is mixed with.
1028968
Garbage is generally handled at the local level, either by the city or the county. They contract the work out to companies and determine where landfills are to be placed.
35815
if you stick around them long enough, you'll eventually see a big ol' truck come by and remove the waste (usually with a huge hose/vaccum thing). from there, it'll get taken and added to a sewer system somewhere, or a waste treatment plant.
308462
i suppose the question i ask is have you actually ever done this?\n\nto seperate sand and water obviously you pour some water in a beaker with your sample and stir it, you filter the solution using a glass funnel and a filter paper.  you take the filter paper after you have finished and open it up and let it dry with the sand on, you take the water from the filtrate beaker and leave it to evaporate in a watchglass and then scrape the salt off.
196696
One possibility is fractional distillation.  This procedure takes the boiling points of each component of a mixture into account.  The mixture is connected to the proper apparatus and placed over heat.  That component with the lower boiling point will evaporate off first and can be collected in a recovery flask.  That material with a higher boiling point will evaporate latest.
504491
Equipment you use, materials you throw out.  Think of a bulldozer (equipment) pushing dirt (material).  You keep the bulldozer and get rid of the dirt.\n\nGood luck.
550697
A good place to start is http://www.epa.gov/ebtpages/wastsolidmunicipalsolidwaste.html\n\nAdditionally, here is another EPA web site that should provide you with the information you seek.  http://oaspub.epa.gov/webimore/aboutepa.ebt4?search=21,235,452\n\nGood luck!
465076
Convert the waste into forms that can be used for thermal reactors.
346952
Before doing that you have to make a simple flow diagram of your process if it's simple too (simple reactions ) then after by allocating stream numbers for the differnt streams,\nfor mass transfer:\nyou can address each stream one or more cells in your excel sheet(depends on that wether you want to consider the stream as a unit one ar separated composition). to have the materials balanced, you should know the relation between the Inputs and Outputs and also the reactions are involved .then after only you can balance the streams.\n\nfor heat transfer:\nyou should consider all the heat generation and consumption terms (simple heat transfer through utility fluids like water,steam,... , heat generated by reactions , material cooling and heating which stand alone is consider as a source of heat generation or consumption , vaporizasion , condensation , freezing , melting , ... ) all these terms use or release heat. after identifiyng all the terms only you can have the heat balanced othere wise you are not able to do. making this done in Excel is very simple .\n\nany way  I'm sure you know all these and need an example, but those are too much also depending on the case. if you still want to know, send me an email to give you some example. but I greately suggest you to use like this excel sheet in your projects as it reduces the human failures in computational procedures and of course time elapsed.\ngood luck.