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Incineration
Incineration is a waste treatment process that involves the combustion of substances contained in waste materials. Industrial plants for waste incineration are commonly referred to as waste-to-energy facilities. Incineration and other high-temperature waste treatment systems are described as " thermal treatment". Incineration of waste materials converts the waste into ash, flue gas and heat. The ash is mostly formed by the inorganic constituents of the waste and may take the form of solid lumps or particulates carried by the flue gas. The flue gases must be cleaned of gaseous and particulate pollutants before they are dispersed into the atmosphere. In some cases, the heat that is generated by incineration can be used to generate electric power. Incineration with energy recovery is one of several waste-to-energy technologies such as gasification, pyrolysis and anaerobic digestion. While incineration and gasification technologies are similar in principle, the energy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waste-to-energy
Waste-to-energy (WtE) or energy-from-waste (EfW) is the process of generating energy in the form of electricity and/or heat from the primary treatment of waste, or the processing of waste into a fuel source. WtE is a form of energy recovery. Most WtE processes generate electricity and/or heat directly through combustion, or produce a combustible fuel commodity, such as methane, methanol, ethanol or synthetic fuels. History The first incinerator or "Destructor" was built in Nottingham, UK, in 1874 by Manlove, Alliott & Co. Ltd. to the design of Alfred Fryer. The first US incinerator was built in 1885 on Governors Island in New York, New York. The first waste incinerator in Denmark was built in 1903 in Frederiksberg.Waste to Energy in Denmark by |
Clinical Waste
Biomedical waste or hospital waste is any kind of waste containing infectious (or potentially infectious) materials. It may also include waste associated with the generation of biomedical waste that visually appears to be of medical or laboratory origin (e.g. packaging, unused bandages, infusion kits etc.), as well research laboratory waste containing biomolecules or organisms that are mainly restricted from environmental release. As detailed below, discarded sharps are considered biomedical waste whether they are contaminated or not, due to the possibility of being contaminated with blood and their propensity to cause injury when not properly contained and disposed. Biomedical waste is a type of biowaste. Biomedical waste may be solid or liquid. Examples of infectious waste include discarded blood, sharps, unwanted microbiological cultures and stocks, identifiable body parts (including those as a result of amputation), other human or animal tissue, used bandages and dressings, d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incinerator Bottom Ash
Incinerator bottom ash (IBA) is a form of ash produced in incineration facilities. This material is discharged from the moving grate of municipal solid waste incinerators. Once IBA is processed by removing contaminants, it can be used as an aggregate. Following processing, the material is termed ''IBA aggregate'' or ''processed IBA''. The aggregate uses include: * Bulk fill * Asphalt * Cement bound materials * Lightweight blocks * Pavement concrete Alternatively, if there are no local markets for the IBA the material is disposed of in a landfill. Recovery IBA is a secondary source of ferrous and non-ferrous (NFe) metals. Between 5-15% of the bottom ash is made up of ferrous materials, and 1-5% is NFe. Despite glass making up 10-30% of IBA, it is not systematically recovered in any processing plants. On average, 63 kg of ferrous materials are removed from a single tonne of ash. Risks Foam concrete made from IBA led to an explosion in the United Kingdom in 2009. It was discover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hazardous Waste
Hazardous waste is waste that has substantial or potential threats to public health or the environment. Hazardous waste is a type of dangerous goods. They usually have one or more of the following hazardous traits: ignitability, reactivity, corrosivity, toxicity. Listed hazardous wastes are materials specifically listed by regulatory authorities as hazardous wastes which are from non-specific sources, specific sources, or discarded chemical products. Hazardous wastes may be found in different physical states such as gaseous, liquids, or solids. A hazardous waste is a special type of waste because it cannot be disposed of by common means like other by-products of our everyday lives. Depending on the physical state of the waste, treatment and solidification processes might be required. The Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal was signed by 199 countries and went into force in 1992. Plastic was added to the conventio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recyclable Waste
Recycling is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept. The recyclability of a material depends on its ability to reacquire the properties it had in its original state. It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions. It can also prevent the waste of potentially useful materials and reduce the consumption of fresh raw materials, reducing energy use, air pollution (from incineration) and water pollution (from landfilling). Recycling is a key component of modern waste reduction and is the third component of the " Reduce, Reuse, and Recycle" waste hierarchy. It promotes environmental sustainability by removing raw material input and redirecting waste output in the economic system. There are some ISO standards related to recycling, such as ISO 15270:2008 for plastics waste and ISO 14001:2015 for e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Solid Waste Treatment Technologies
The article contains a list of different forms of solid waste treatment technologies and facilities employed in waste management infrastructure. Waste handling facilities *Civic amenity site (CA site) * Transfer station Established waste treatment technologies *Incineration * Landfill *Recycling *Specific to organic waste: **Anaerobic digestion **Composting *** Windrow composting Alternative waste treatment technologies In the UK some of these are sometimes termed advanced waste treatment technologies * Biodrying *Gasification ** Plasma gasification: Gasification assisted by plasma torches * Hydrothermal carbonization * Hydrothermal liquefaction *Mechanical biological treatment (sorting into selected fractions) ** Refuse-derived fuel * Mechanical heat treatment *Molten salt oxidation *Pyrolysis *UASB (applied to solid wastes) * Waste autoclave * Specific to organic waste: ** Bioconversion of biomass to mixed alcohol fuels ** In-vessel composting ** Landfarming **Sewage treatment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Treatment
Thermal treatment is any waste treatment technology that involves high temperatures in the processing of the waste feedstock. Commonly this involves the combustion of waste materials. Systems that are generally considered to be thermal treatment include: *Cement kiln *Gasification *Incineration *Mechanical heat treatment *Pyrolysis *Thermal depolymerization * Waste autoclaves See also *Anaerobic digestion *List of solid waste treatment technologies *Mechanical biological treatment *Waste-to-energy *Pyrolysis The pyrolysis (or devolatilization) process is the thermal decomposition of materials at elevated temperatures, often in an inert atmosphere. It involves a change of chemical composition. The word is coined from the Greek-derived elements ''p ... Weblinks * Germany and thermal treatment – an exemplary German companyREMEX Mineralstoff GmbH* Recycling solutions for tar contaminated stratification material – thermal treatment ants.verwertungin Germany {{Waste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pathogen
In biology, a pathogen ( el, πάθος, "suffering", "passion" and , "producer of") in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term ''pathogen'' came into use in the 1880s. Typically, the term ''pathogen'' is used to describe an ''infectious'' microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. Small animals, such as helminths and insects, can also cause or transmit disease. However, these animals are usually referred to as parasites rather than pathogens. The scientific study of microscopic organisms, including microscopic pathogenic organisms, is called microbiology, while parasitology refers to the scientific study of parasites and the organisms that host them. There are several pathways through which pathogens can invade a host. The principal pathways have different episodic time frames, but soil has the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxin
A toxin is a naturally occurring organic poison produced by metabolic activities of living cells or organisms. Toxins occur especially as a protein or conjugated protein. The term toxin was first used by organic chemist Ludwig Brieger (1849–1919) and is derived from the word toxic. Toxins can be small molecules, peptides, or proteins that are capable of causing disease on contact with or absorption by body tissues interacting with biological macromolecules such as enzymes or cellular receptors. Toxins vary greatly in their toxicity, ranging from usually minor (such as a bee sting) to potentially fatal even at extremely low doses (such as botulinum toxin). Toxins are largely secondary metabolites, which are organic compounds that are not directly involved in an organism's growth, development, or reproduction, instead often aiding it in matters of defense. Terminology Toxins are often distinguished from other chemical agents strictly based on their biological origin. Les ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulky Waste
Bulky waste or bulky refuse is a technical term taken from waste management to describe waste types that are too large to be accepted by the regular waste collection. It is usually picked up regularly in many countries from the streets or pavements of the area. This service is provided free of charge in many places, but often a fee has to be paid. Bulky waste items include discarded furniture (couches, recliners, tables), large appliances ( refrigerators, ovens, TVs), and plumbing fixtures (bathtubs, toilets, sinks). A large amount (30-60%, depending on area) of bulky waste is picked up by scavengers before it is collected. Branches, brush, logs and other green waste are also categorized as bulky waste, although they may be collected separately for shredding and/or composting. Grapple trucks, also known as knuckleboom loaders, are often used to collect bulky waste. In the UK, refuse collection vehicles (RCVs) or crushers are being increasingly phased out as more bulky waste is di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niche Market
A niche market is the subset of the market on which a specific product is focused. The market niche defines the product features aimed at satisfying specific market needs, as well as the price range, production quality and the demographics that it is intended to target. It is also a small market segment. Sometimes, a product or service can be entirely designed to satisfy a niche market. Not every product can be defined by its market niche. The niche market is highly specialized, and aiming to survive among the competition from numerous super companies. Even established companies create products for different niches; Hewlett-Packard has all-in-one machines for printing, scanning and faxing targeted for the home office niche, while at the same time having separate machines with one of these functions for big businesses. While you may have explicit moving items effectively at the top of the priority list. Although you can build your chances of achievement by beginning with a niche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waste Types
Waste comes in many different forms and may be categorized in a variety of ways. The types listed here are not necessarily exclusive and there may be considerable overlap so that one waste entity may fall into one to many types. * Agricultural waste * Animal by-products * Biodegradable waste * Biomedical waste * Bulky waste * Business waste * Chemical waste * Clinical waste * Coffee wastewater * Commercial waste * Composite waste * Construction and demolition waste (C&D waste) * Consumable waste * Controlled waste * Demolition waste * Dog waste * Domestic waste * Electronic waste (e-waste) * Food waste * Gaseous wastes * Green waste * Grey water * Hazardous waste * Household waste ** Household hazardous waste * Human waste ** Sewage sludge * Industrial waste ** Slag ** Fly ash ** Sludge * Inert waste * Inorganic waste * Kitchen waste * Litter * Liquid waste * Marine debris * Medical waste * Metabolic waste * Mineral waste * Mixed waste * Municipal solid waste * Nuclea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
