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On September 11, 1883, James Goold Cutler received U.S. patent 284,951, for a system connecting deposit boxes on multiple floors to a single ground-floor receptacle; the chute had to have a front of at least three-fourths glass to allow for the identification of mail clogs, and, if installed at a height of greater than two stories, an elastic cushion was to be fitted in the receptacle to ...
Additionally, the EPA has categorized Construction and Demolition (C&D) waste into three categories: non-dangerous, hazardous, and semi-hazardous. [1] Of total construction and demolition (C&D) waste in the United States, 90% comes from the demolition of structures, while waste generated during construction accounts for less than 10%. [2]
A chute, also known as a race, flume, cat, or river canyon, is a steep-sided passage through which water flows rapidly. Akin to these, man-made chutes, such as the timber slide and log flume, were used in the logging industry to facilitate the downstream transportation of timber along rivers.
Recyclables from the Bronx and Queens are taken there by barge. There the recyclables are sorted by eddy current separators and optical scanners, then baled for sale. Clear glass is sold to bottlers and colored glass is sold as construction aggregate. Roughly 15% of material entering the facility ends up in a landfill, either because it cannot ...
Demolition debris can be disposed of in either Construction and Demolition Debris landfills or municipal solid waste landfills. [4] Alternatively, debris may also be sorted and recycled. Sorting may happen as deconstruction on the demolition site, off-site at a sorting location, or at a Construction and Demolition recycling center. [ 4 ]
Ready-mix concrete refers to concrete that is specifically manufactured for customers' construction projects, and supplied to the customer on site as a single product. It is a mixture of Portland or other cements, water and aggregates: sand, gravel, or crushed stone. [ 5 ]
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.
Agencies such as the Solid Waste Association of North America's (SWANA) [9] Landfill Management Division provide training and technical advice related to the planning, design, construction, closure and post-closure of today's landfills. [10]