Filter material for water purification of eutrophication polluted water by nitrogen and phosphorus using activated coal particulate material, water purification facility using the same, sludge treatment method using activated coal fine powder as ion exchange material, and method Recycled materials manufactured through
The filter material for water purification of eutrophication contaminated water according to the present invention is an average particle size having a microporous structure as a whole by oxidizing ash from low-grade coal that is not suitable for use as fuel. Is a granular material of activated coal having a diameter of 5 mm or more, and an activated coal granular material in which the ratio of silicon and carbon in the component elements is regulated within a predetermined range is used. As a result, eutrophied contaminated water that effectively uses the excellent ability of activated coal particulate material obtained by oxidizing low-grade coal at low cost, the ability to purify microorganisms, and the ability of plants to absorb nitrogen and phosphorus. It is possible to provide a filtering material for water purification and a water purification facility using the same.本発明に係る富栄養化汚染水の水質浄化用濾過材料は、燃料としての使用に適さない低品位の石炭を酸化処理して灰分を除去することで、全体を微多孔構造とした平均粒径が５ｍｍ以上の活性化石炭の粒状材であり、成分要素中のケイ素と炭素との比率が所定範囲内に規制されている活性化石炭粒状材を用いている。この結果、コストの安い低品位石炭を酸化処理することで得られる活性化石炭粒状材料の優れた能力と微生物類の浄化能力や植物の窒素や燐吸収能力とを有効利用した富栄養化汚染水の水質浄化用濾過材料と、これを利用した浄水施設を提供するができる。
