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Belt filter
The belt filter (sometimes called a belt press filter, or belt filter press) is an industrial machine, used for solid/liquid separation processes, particularly the dewatering of sludges in the chemical industry, mining and water treatment. Belt filter presses are also used in the production of apple juice, cider and winemaking.〔(【引用サイトリンク】title=Core belt filter presses designed for the apple juice, cider and winemaking industries. )〕 The process of filtration is primarily obtained by passing a pair of filtering cloths and belts through a system of rollers. The system takes a sludge or slurry as a feed, and separates it into a filtrate and a solid cake.
==Applications==
The belt filter is mainly used for dewatering 〔 of sludge and slurry and juice extraction from apples, pears and other fruits, as well as grapes for winemaking, etc. Belt filters are used both municipally and industrially in a range of areas including urban sewage and wastewater treatment, metallurgy and mining, steel plants, coal plants, breweries, dyeing, tanneries, as well as chemical and paper factories.〔http://www.china-blackstone.com, Zhengzhou Black Stone Machinery Co. LTD., 2012, 01 October 2013〕
The applications of a belt filter are only limited to the sludges, slurry or mashed fruit that it can process. The sludges from municipal use include raw, anaerobically digested and aerobically digested sludges, alum sludge, lime softening sludge and river water silt.〔http://www.beltfilterpress.com, Komline-Sanderson, 2013, "Belt Filter Press", Komline-Sanderson Engineering Corporation, Peapack, USA, viewed 2nd October 2013〕 In industry, any sludge or slurry is sourced from food processing wastes, pulp and paper wastes, chemical sludges, pharmaceutical wastes, industrial waste processing sludges, and petrochemical wastes.〔 These wastes can include mixed sludge, mineral slurry, dust sediment, selected coal washing mud, biological sludge, primary sludge, and straw, wood or waste paper pulp.〔
Some dewatering objectives include reducing the volume to reduce the transport and storage costs, removing liquids before landfill disposal, reducing fuel requirements before further drying or incineration, producing adequate material for composting, avoiding runoff and pooling when used for land applications, and optimizing other drying processes.〔 Belt filters are specifically designed for each of these particular applications and feeds.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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