Rate This Topic

Average: 0/5

Recycling

  • SS Gairsoppa recovery Featured Article SS Gairsoppa recovery SS Gairsoppa recovery

    The SS Gairsoppa recovery is a planned deep-sea operation in the North Atlantic Ocean, that is expected to retrieve the world's largest precious metals shipwreck salvage in... More »

Recently Updated
Public Health Statement for 1,1-Dichloroethene Last Updated on 2013-09-30 00:58:32 This article is a verbatim version of the original and is not available for edits or additions by EoE editors or authors. Companion articles on the same topic that are editable may exist within the EoE. May 1994 En Español CAS#: 75-35-4 This Public Health Statement is the summary chapter from the Toxicological profile for 1,1-Dichoroethene. It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQs™, is also available. This information is important because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. For more information, call the ATSDR Information Center at 1-888-422-8737. This Statement was prepared to give you information about... More »
Public Health Statement for 1,1,2-Trichloroethane Last Updated on 2013-09-17 22:09:18 This article is a verbatim version of the original and is not available for edits or additions by EoE editors or authors. Companion articles on the same topic that are editable may exist within the EoE. December 1989 CAS# 79-00-5 This Public Health Statement is the summary chapter from the Toxicological Profile for 1,1,2-trichloroethane. It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQs™, is also available. This information is important because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. For more information, call the ATSDR Information Center at 1-888-422-8737. 1,1,2-Trichloroethane is a colorless, sweet-smelling liquid that does... More »
SS Gairsoppa recovery Last Updated on 2011-09-27 00:00:00 The SS Gairsoppa recovery is a planned deep-sea operation in the North Atlantic Ocean, that is expected to retrieve the world's largest precious metals shipwreck salvage in history. On February 17, 1941 a German U-boat in 1941 sank this British merchant ship with its cargo of silver bullion with a present value of 130 - 150 million pounds sterling. Only recently in the summer of 2011 was the precise location of the shipwreck pinpointed, resting at a depth of about three miles. Sunken wreckage of the SS Garisoppa.Source: Odyssey Marine Exploration The SS Gairsoppa in service in the Atlantic. The... More »
Composting Last Updated on 2010-07-07 16:11:33 Composting is the controlled biological decomposition and pasteurization of organic materials under aerobic conditions— it involves the action of mesophilic microorganisms followed by thermophilic microorganisms that thrive under increased (more than 50 °C) temperature conditions and if correctly managed, can destroy disease-causing organisms, even weed seeds. Biodegradable organic matter is mineralized while carbon dioxide (CO2), water and heat are liberated, and the residual organic components are stabilized mainly to humic acids. There are various ways of composting—aerobic static piles (non-interventionary), aerobic windrows (interventionary), using worms (vermicomposting, which is in fact a different type of process that does not involve the thermophilic stages), etc. The choice of the method is usually based on the objective. There are many different technologies... More »
Point source pollution Last Updated on 2010-04-27 14:25:15 Point Source The U.S. Environmental Protection Agency (EPA) defines point source pollution as “any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack”[1]. Factories and sewage treatment plants are two common types of point sources. Factories, including oil refineries, pulp and paper mills, and chemical, electronics and automobile manufacturers, typically discharge one or more pollutants in their discharged waters (called effluents). Some factories discharge their effluents directly into a waterbody. Others treat it themselves before it is released, and still others send their wastes to sewage treatment plants for treatment. Sewage treatment plants treat human wastes and send the treated effluent to a stream or river. Another way that some factories and sewage treatment... More »