WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS

• Main Authors: HIRANO SHIGEHIRO, AOKI KAORU, SATO YUKINORI
• Format: Patent
• Language: English; Japanese
• Published: 13.11.2014
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a water treatment method and a water treatment apparatus that treat water more efficiently than conventional ones in the water treatment utilizing microbubbles and using a porous substance as a catalyst.SOLUTION: A wastewater treatment apparatus 100 includes a bubble generating tank 1 serving as microbubble generating means or the like that generates microbubbles in the object wastewater 4 to be treated and a porous substance 5 that is brought into contact with the wastewater 4 to be treated having the microbubbles therein. The sum of the volume of a pore having a pore diameter of 20 nm or more and 200 nm or less is 20% or more and 40% or less of the sum of the volume of every pore on the surface of the porous substance 5. 【課題】多孔性物質を触媒として用いる微小気泡を利用した水処理で、従来よりも効率的な水処理を行うことができる水処理方法及び水処理装置を提供する。【解決手段】処理対象の水である処理排水４の中に微小気泡であるマイクロバブルを発生させる微小微小気泡発生手段である気泡発生槽１等と、微小気泡が発生した処理排水４に接触する多孔性物質５と、を有する水処理装置である排水処理装置１００で、多孔性物質５の表面に開口した細孔のうち、細孔直径が２０［ｎｍ］以上、２００［ｎｍ］以下の範囲となる細孔の容積の和は、全ての細孔の容積の和に対して、２０［％］以上、４０［％］以下である。【選択図】図１