From Wikipedia, the free of charge encyclopedia
For the company, see Waste Management, Inc. For various other uses, see Waste management (disambiguation). Not to be confused with Sanitary engineering.
| This article needs additional citations for verification. Please help improve this article by adding info to dependable sources. Unsourced material may be challenged and removed. (May 2011)
Waste materials management in Kathmandu (Nepal)
Waste management in Stockholm, Laxa, sweden
Waste management is the collection, transport, processing or removal, managing and monitoring of waste materials. The term usually relates to materials produced by liveliness, and the process is generally carried out to reduce their effect on health, the environment or aesthetics. Waste managing is a specific practice from resource recovery which is targeted on delaying the speed of usage of natural assets. All toxins materials, whether or not they are solid, liquid, gaseous or radioactive fall inside the remit of waste management Waste managing practices may vary for developed and developing countries, for urban and rural areas, and for residential and industrial producers. Management of nonhazardous waste residential and institutional waste in metropolitan areas is usually the responsibility of local governmentauthorities, whilst management intended for non-hazardous industrial and industrial waste is usually the responsibility of the generator subject to regional, national or international regulates. Contents �[hide]� * 1 Methods of disposal 5. 1 . 1 Landfill * 1 ) 2 Incineration 5. 1 . 3 Recycling * 1 ) 4 Sustainability 5. 1 . 5. 1 Biological reprocessing * 1 ) 4. 2 Energy recovery 2. 1 . 5 Resource recovery 2. 1 . 6 Avoidance and lowering methods 2. 2 Waste controlling and transportation * 3 Technologies * 4 Waste management concepts * 5 Scientific journals * 6 See as well * 7 References * 8 External links| -------------------------------------------------
Methods of disposal
Main article: Landfill
Landfill operation in Hawaii.
A landfill compaction vehicle in action.
Spittelau incineration plant in Vienna
Disposal of waste in a landfill requires burying the waste, and this remains a common practice generally in most countries. Landfills were typically established in abandoned or perhaps unused quarries, mining voids or borrow pits. A properly designed and well-managed landfill could be a hygienic and relatively inexpensive approach to disposing of waste products. Older, poorly designed or perhaps poorly been able landfills can create a number of adverse environmental affects such as wind-blown litter, attraction of vermin, and generation of liquid leachate. Another common product of landfills can be gas (mostly composed of methaneand carbon dioxide), which is produced while organic waste materials breaks down anaerobically. This gas can generate odor concerns, kill surface vegetation, which is a greenhouse gas. Design qualities of a modern day landfill incorporate methods to have leachate such as clay or plastic coating material. Deposited waste is normally compacted to boost its thickness and stability, and protected to prevent attracting vermin (such as mice or rats). Many landfills also have landfill gas extraction devices installed to extract the landfill gas. Gas is circulated out of the landfill using perforated pipes and flared away or burned in a gas engine to generate electricity. Incineration
Primary article: Incineration
Incineration is known as a disposal method in which sturdy organic toxins are put through combustion in order to convert all of them into remains and gaseous products. This process is useful for disposal of residue of both stable waste administration and solid residue by waste normal water management. This procedure reduces the volumes of solid waste materials to 20 to 30 percent of the original amount. Incineration and other high temperature spend treatment systems are sometimes described as " cold weather...