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Recycling gypsum waste also reduces the need for the quarrying and production of virgin gypsum raw materials. Recycling one ton of the ordinary gypsum will save 1,000 pounds of black alkali, 1 ton of lactic acid and 500 kwh of energy. [citation needed] Recycling one metric ton of gypsum will save 28 kwh of energy and 4 pounds of aluminium.
Some of the reasons for recycling this waste are: Gypsum is one of the few construction materials for which closed loop recycling is possible. [3] Closed loop gypsum recycling saves virgin gypsum resources. According to the European Directive 2008/98/EC on Waste, [4] recycling should be preferred to recovery and landfill disposal.
The gypsum recycling system from GRI is a complete system with all the necessary elements for taking the waste from the place of generation to the processing facility, where the waste is transformed into a reusable raw material that is delivered to the plasterboard plant nearby at a cost lower than virgin gypsum. The system encompasses: a ...
Recycling can be carried out on various raw materials. Recycling is an important part of creating more sustainable economies, reducing the cost and environmental impact of raw materials. Not all materials are easily recycled, and processing recyclable into the correct waste stream requires considerable energy.
A variety of models exist depending on the region and municipality. Waste can be measured by weight or size, or by unit counts, identified using different types of bags, tags, containers or even RFID. Services for waste diversion, like recycling and composting, are often provided free of charge where pay-as-you-throw systems are implemented. [1]
A landfill [a] is a site for the disposal of waste materials. It is the oldest and most common form of waste disposal, although the systematic burial of waste with daily, intermediate and final covers only began in the 1940s. In the past, waste was simply left in piles or thrown into pits (known in archeology as middens).
Waste collection is a part of the process of waste management. It is the transfer of solid waste from the point of use and disposal to the point of treatment or landfill. Waste collection also includes the curbside collection of recyclable materials that technically are not waste, as part of a municipal landfill diversion program.
The Payatas dumpsite, also known as the Payatas Controlled Disposal Facility (PCDF), is a former garbage dump in the barangay of the same name in Quezon City, Metro Manila, the Philippines. Originally established in the 1970s, [ 1 ] the former open dumpsite was home to scavengers who migrated to the area after the closure of the Smokey Mountain ...