Anthracite is a filter medium used mainly in water filtration and wastewater treatment. Its advantages include higher service flow rates, longer filter runs, lower backwash rates, lower head loss than single-media filter beds and a longer filter bed life.<\/p>\n
This article explains more about anthracite for water filtration<\/a><\/strong><\/em>.<\/p>\n Anthracite is the type of coal with the highest carbon content, more than 95% by weight. Like many other minerals, it formed over millions of years from layers of plant material subjected to heat and pressure.<\/p>\n It is the hardest of all carbonaceous materials. Long used in water purification, filter-grade anthracite is selected from deeper seams, where pressure has raised the carbon content even further.<\/p>\n Filter media are materials that let raw, untreated water pass through while retaining particulate matter, so that cleaner water comes out. Each filter medium has specific characteristics, such as particle size, weight, whether it is activated or not and specific gravity.<\/p>\n These characteristics give different performance in different filtration duties, and the most robust or most economical system usually comes from balancing them. Anthracite’s broad tolerance of contaminants and its availability as a filtration-grade product make it a popular choice for water filtration<\/strong><\/em><\/a>.<\/p>\n Anthracite has very good properties for purifying and clarifying water, especially when used with sand or as part of a dual-media or multimedia filter. It is suitable for drinking water, wastewater filtration and industrial process water. Its properties, wide availability and ease of use make it one of the most widely used water filter media in the world.<\/p>\n These are the advantages of using anthracite as a water filter medium:<\/p>\n Anthracite is strong and durable, and its particles are well suited to deep-bed filtration. In multilayer filtration, the water passes through several layers of filter material, becoming progressively finer in the direction of flow.<\/p>\n Having several layers removes particles of different sizes and types as the water passes through, giving a cleaner final result. Multilayer filters can hold a large quantity of solids.<\/p>\n In multilayer sand filters, anthracite sits above several layers of sand designed to filter the finest particles from the water. Gravel forms the support layer, letting the filtered water pass to the outlets. If the bottom layer were sand, the outlets would clog; the gravel prevents this.<\/p>\n Anthracite is a very pure form of coal, widely available and a good source of carbon.<\/p>\n In filter media, anthracite is used together with sand and gravel for water purification.<\/p>\n In reverse osmosis, anthracite is used with other filter media in the pretreatment to keep the membranes used for desalination working effectively.<\/p>\n Anthracite filters are also used at several stages of solvent extraction and electrowinning, where they remove residual organic and insoluble material to improve the efficiency of extraction and electrolysis.<\/p>\n Whether in wastewater facilities, recreational water or water treatment plants, anthracite plays an important part in water purification technology. See our anthracite filter media<\/a> or contact KEIKEN<\/strong><\/em><\/a> for advice on the right water treatment solution for your needs.<\/p>\n","protected":false},"excerpt":{"rendered":" Anthracite is a filter medium used mainly in water filtration and wastewater treatment. What it is, why it is used, its advantages and its role in multimedia filters.<\/p>\n","protected":false},"author":1,"featured_media":5708,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[85],"tags":[],"class_list":["post-10905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-filter-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts\/10905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/comments?post=10905"}],"version-history":[{"count":2,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts\/10905\/revisions"}],"predecessor-version":[{"id":11792,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts\/10905\/revisions\/11792"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/media\/5708"}],"wp:attachment":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/media?parent=10905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/categories?post=10905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/tags?post=10905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What is anthracite?<\/h2>\n
Why is anthracite used as a water filter medium?<\/h2>\n
Advantages of anthracite filter media<\/h2>\n
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Why is anthracite good for multilayer water treatment?<\/h2>\n
Why is gravel used with anthracite?<\/h2>\n
Summary<\/h2>\n
The bottom line<\/h2>\n