Municipal solid waste - wikipedia Municipal solid waste `` Urban waste '' redirects here. For the punk band, see Urban Waste ( band ). `` Rubbish '' and `` Municipal waste '' redirect here. For other uses, see Rubbish ( disambiguation ) and Municipal waste ( disambiguation ). The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. 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Contents 1 Composition 2 Components of solid waste management 2.1 Collection 2.2 Waste handling and separation, storage and processing at the source 2.3 Segregation and processing and transformation of solid wastes 2.4 Transfer and transport 2.5 Disposal 2.6 Reusing 2.7 Landfills 2.8 Energy generation 3 See also 4 References 5 Further reading 6 External links Composition The composition of municipal solid waste varies greatly from municipality to municipality, and it changes significantly with time. In municipalities which have a well developed waste recycling system, the waste stream mainly consists of intractable wastes such as plastic film and non-recyclable packaging materials. At the start of the 20th century, the majority of domestic waste ( 53 % ) in the UK consisted of coal ash from open fires. In developed areas without significant recycling activity it predominantly includes food wastes, market wastes, yard wastes, plastic containers and product packaging materials, and other miscellaneous solid wastes from residential, commercial, institutional, and industrial sources. Most definitions of municipal solid waste do not include industrial wastes, agricultural wastes, medical waste, radioactive waste or sewage sludge. Waste collection is performed by the municipality within a given area. The term residual waste relates to waste left from household sources containing materials that have not been separated out or sent for reprocessing. Waste can be classified in several ways but the following list represents a typical classification : Biodegradable waste : food and kitchen waste, green waste, paper ( most can be recycled although some difficult to compost plant material may be excluded ) Recyclable materials : paper, cardboard, glass, bottles, jars, tin cans, aluminum cans, aluminum foil, metals, certain plastics, fabrics, clothes, tires, batteries, etc. Inert waste : construction and demolition waste, dirt, rocks, debris Electrical and electronic waste ( WEEE ) - electrical appliances, light bulbs, washing machines, TVs, computers, screens, mobile phones, alarm clocks, watches, etc. Composite wastes : waste clothing, Tetra Packs, waste plastics such as toys Hazardous waste including most paints, chemicals, tires, batteries, light bulbs, electrical appliances, fluorescent lamps, aerosol spray cans, and fertilizers Toxic waste including pesticides, herbicides, and fungicides Biomedical waste, expired pharmaceutical drugs, etc. Components of solid waste Management Bins to collect paper, aluminium, glass, PET bottles and incinerable waste. The municipal solid waste industry has four components : recycling, composting, disposal, and waste - to - energy via incineration. There is no single approach that can be applied to the management of all waste streams, therefore the Environmental Protection Agency, federal agency of the United States of America, developed a hierarchy ranking strategy for municipal solid waste. The Waste Management Hierarchy is made up of four levels ordered from most preferred to least preferred methods based on their environmental soundness : Source reduction and reuse ; recycling or composting ; energy recovery ; treatment and disposal. Collection The functional element of collection includes not only the gathering of solid waste and recyclable materials, but also the transport of these materials, after collection, to the location where the collection vehicle is emptied. This location may be a materials processing facility, a transfer station or a landfill disposal site. Waste handling and separation, storage and processing at the source Waste handling and separation involves activities associated with waste management until the waste is placed in storage containers for collection. Handling also encompasses the movement of loaded containers to the point of collection. Separating different types of waste components is an important step in the handling and storage of solid waste at the source. Segregation and processing and transformation of solid wastes The types of means and facilities that are now used for the recovery of waste materials that have been separated at the source include curbside ( ' kerbside ' in the UK ) collection, drop - off and buy - back centers. The separation and processing of wastes that have been separated at the source and the separation of commingled wastes usually occur at a materials recovery facility, transfer stations, combustion facilities and disposal sites. Transfer and transport This element involves two main steps. First, the waste is transferred from a smaller collection vehicle to larger transport equipment. The waste is then transported, usually over long distances, to a processing or disposal site. Disposal Mixed municipal waste, Hiriya, Tel Aviv Today, the disposal of wastes by land filling or land spreading is the ultimate fate of all solid wastes, whether they are residential wastes collected and transported directly to a landfill site, residual materials from materials recovery facilities ( MRFs ), residue from the combustion of solid waste, compost, or other substances from various solid waste processing facilities. A modern sanitary landfill is not a dump ; it is an engineered facility used for disposing of solid wastes on land without creating nuisances or hazards to public health or safety, such as the problems of insects and the contamination of ground water. Reusing In the recent years environmental organizations, such as Freegle or Freecycle Network, have been gaining popularity for their online reuse networks. These networks provide a worldwide online registry of unwanted items that would otherwise be thrown away, for individuals and nonprofits to reuse or recycle. Therefore, this free Internet - based service reduces landfill pollution and promotes the gift economy. Landfills Landfills are created by land dumping. Land dumping methods vary, most commonly it involves the mass dumping of waste into a designated area, usually a hole or sidehill. After the waste is dumped, it is then compacted by large machines. When the dumping cell is full, it is then `` sealed '' with a plastic sheet and covered in several feet of dirt. This is the primary method of dumping in the United States because of the low cost and abundance of unused land in North America. Landfills pose the threat of pollution, and can intoxicate ground water. The signs of pollution are effectively masked by disposal companies and it is often hard to see any evidence. Usually landfills are surrounded by large walls or fences hiding the mounds of debris. Large amounts of chemical odor eliminating agent are sprayed in the air surrounding landfills to hide the evidence of the rotting waste inside the plant. Energy generation Municipal solid waste can be used to generate energy. Several technologies have been developed that make the processing of MSW for energy generation cleaner and more economical than ever before, including landfill gas capture, combustion, pyrolysis, gasification, and plasma arc gasification. While older waste incineration plants emitted a lot of pollutants, recent regulatory changes and new technologies have significantly reduced this concern. United States Environmental Protection Agency ( EPA ) regulations in 1995 and 2000 under the Clean Air Act have succeeded in reducing emissions of dioxins from waste - to - energy facilities by more than 99 percent below 1990 levels, while mercury emissions have been reduced by over 90 percent. The EPA noted these improvements in 2003, citing waste - to - energy as a power source `` with less environmental impact than almost any other source of electricity ''. See also Garbology ( study of modern refuse and trash ) List of waste management acronyms MSW / LFG ( municipal solid waste and landfill gas ) Sewage Waste minimisation References This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( April 2011 ) Jump up ^ Kumar, Sunil ; Dhar, Hiya ; Nair, Vijay V. ; Bhattacharyya, J.K. ; Vaidya, A.N. ; Akolkar, A.B. ( 2016 ). `` Characterization of municipal solid waste in high - altitude sub-tropical regions ''. Environmental Technology. 37 : 2627 -- 2637. doi : 10.1080 / 09593330.2016. 1158322. Jump up ^ Centenary history of waste and waste managers in London and south east England - Page 7 Jump up ^ Non-hazardous Waste U.S. Environmental Protection Agency, Municipal Solid Waste Jump up ^ Municipal Solid Waste U.S. Energy Information Administration Jump up ^ Mechanical Biological Treatment Welsh Assembly ( 2005 ) Mechanical Biological Treatment, Environment Countryside and Planning Website, Welsh Assembly Jump up ^ `` Organics - Green Bin ''. Christchurch City Council. Retrieved 19 March 2016. Jump up ^ Nonhazardous waste U.S. Energy Information Administration Jump up ^ System Overview Jump up ^ Advancing Sustainable Materials Management : Facts and Figures Jump up ^ Rogers, Heather. Gone Tomorrow : The Hidden Life of Garbage. Jump up ^ Environmental and Energy Study Institute Issue Brief Jump up ^ Combustion Emissions from Hazardous Waste Incinerators, Boilers and Industrial Furnaces, and Municipal Solid Waste Incinerators - Results from Five STAR Grants and Research Needs U.S. EPA Jump up ^ U.S. EPA Letter to Maria Zannes, President, Integrated Waste Services Association Further reading Vergara, S.E. ; Tchobanoglous, G. ( 2012 ). `` Municipal Solid Waste and the Environment : A Global Perspective ''. Annual Review of Environment and Resources. 37 : 277. doi : 10.1146 / annurev - environ - 050511 - 122532. External links `` Environmentally Sound Management of Solid Wastes and Sewage - Related Issues ''. United Nations Environment Programme. Retrieved 2011 - 02 - 23. `` Municipal Solid Waste Management and Handling Rules 2000, Ministry of Environment and Forests, Government of India ''. envfor.nic.in. Retrieved 2011 - 02 - 25. Municipal Solid Waste in the U.S. Factsheet by the University of Michigan 's Center for Sustainable Systems Biosolids, waste and waste management Major types Agricultural wastewater Biodegradable waste Brown waste Chemical waste Construction waste Demolition waste Electronic waste by country Food waste Green waste Hazardous waste Heat waste Industrial waste Litter Marine debris Biomedical waste Mining waste Municipal solid waste Open defecation Post-consumer waste Radioactive waste Scrap metal Sewage Toxic waste Wastewater Processes Anaerobic digestion Biodegradation Composting Garden waste dumping Illegal dumping Incineration Landfill Landfill mining Mechanical biological treatment Mechanical sorting Open dump Photodegradation Recycling Resource recovery Sewage treatment Waste collection Waste picking Waste sorting Waste trade Waste treatment Waste - to - energy Countries Armenia Bangladesh Brazil Hong Kong India Kazakhstan New Zealand Russia Switzerland Taiwan Thailand Turkey UK US Agreements Bamako Convention Basel Convention EU directives batteries landfills RoHS framework incineration waste water WEEE London Convention Oslo Convention OSPAR Convention Other topics Blue Ribbon Commission on America 's Nuclear Future Cleaner production Downcycling Eco-industrial park Extended producer responsibility High - level radioactive waste management History of waste management Landfill fire Sewage regulation and administration Upcycling Waste hierarchy Waste legislation Waste minimisation Zero waste Environment portal Commons Concepts Index Journals Lists Organizations GND : 4113855 - 7 Jump up ^ * Kumar, Sunil ; Dhar, Hiya ; Nair, Vijay V. ; Bhattacharyya, J.K. ; Vaidya, A.N. ; Akolkar, A.B. ( 22 March 2016 ). `` Characterization of municipal solid waste in high - altitude sub-tropical regions ''. Environmental Technology. 37 ( 20 ) : 2627 -- 2637. doi : 10.1080 / 09593330.2016. 1158322. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Municipal_solid_waste&oldid=799945442 '' Categories : Waste Hidden categories : Articles with limited geographic scope from March 2012 USA - centric Articles needing additional references from April 2011 All articles needing additional references Wikipedia articles with GND identifiers Talk Contents About Wikipedia Bân - lâm - gú Беларуская ( тарашкевіца ) ‎ Català Čeština Deutsch Español Esperanto Français 한국어 हिन्दी Íslenska Nederlands 日本 語 Polski Português Română Русский සිංහල Suomi Svenska తెలుగు ไทย Türkçe Українська اردو 粵語 中文 Edit links This page was last edited on 10 September 2017, at 19 : 14. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. 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Question: most of the municipal waste in the us is
Answer: food waste