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The Public Works Administration ( PWA ), part of the New Deal of 1933, was a large-scale public works construction agency in the United States headed by Secretary of the Interior Harold L. Ickes. It was created by the National Industrial Recovery Act in June 1933 in response to the Great Depression. It built large-scale public works such as ...
A materials recovery facility, materials reclamation facility, materials recycling facility or multi re-use facility ( MRF, pronounced "murf") is a specialized waste sorting and recycling system [ 1] that receives, separates and prepares recyclable materials for marketing to end-user manufacturers. Generally, the main recyclable materials ...
Heat recovery ventilation. Heat recovery ventilation ( HRV ), also known as mechanical ventilation heat recovery ( MVHR) or energy recovery ventilation ( ERV ), is a ventilation system that recovers energy by operating between two air sources at different temperatures. It is used to reduce the heating and cooling demands of buildings.
Petra Nova is a carbon capture project designed to reduce carbon emissions from one of the boilers of a coal burning power plant in Thompsons, Texas. It is a multi-million dollar project taken up by NRG Energy and JX Nippon Oil to retrofit one of the boilers at their WA Parish Generating Station with a post-combustion carbon capture treatment ...
Engineering economics, previously known as engineering economy, is a subset of economics concerned with the use and "...application of economic principles" [ 1] in the analysis of engineering decisions. [ 2] As a discipline, it is focused on the branch of economics known as microeconomics in that it studies the behavior of individuals and firms ...
The United States is the world's second-largest manufacturer after the People's Republic of China with a record high real output in 2021 of $2.5 trillion. [ 2] As of December 2016, the U.S. manufacturing industry employed 12.35 million people. A year later, in December 2017, U.S. manufacturing employment grew by 207,000, or 1.7%, employees. [ 3]
Resource recovery is part of a circular economy, in which the extraction of natural resources and generation of wastes are minimised, and in which materials and products are designed more sustainably for durability, reuse, repairability, remanufacturing and recycling. [ 3] Life-cycle analysis (LCA) can be used to compare the resource recovery ...
Recovery boiler is the part of kraft process of pulping where chemicals for white liquor are recovered and reformed from black liquor, which contains lignin from previously processed wood. The black liquor is burned, generating heat, which is usually used in the process of making electricity, much as in a conventional steam power plant.