CONTAMINATED GROUND PURIFICATION METHOD

• Main Author: YAMAMOTO SUMIO
• Format: Patent
• Language: English; Japanese
• Published: 18.05.2017
• Subjects: DISPOSAL OF SOLID WASTE; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; SOIL SHIFTING; TRANSPORTING; UNDERGROUND OR UNDERWATER STRUCTURES

PROBLEM TO BE SOLVED: To provide an effective contaminated ground purification method capable of eliminating a vain purification work even when an area of a small area formed of an almost regular hexagonal shape set on a contaminated ground, is large to a certain extent.SOLUTION: A contaminated ground purification method is configured so that, small areas formed of an almost regular hexagonal shape whose side has a constant length, are continuously arranged and set in a honeycomb-state on a ground without a gap, in all directions, on the ground. Then a gas is supplied to a drilling pipe 3 for injection penetrated to a center area O1 of each small area R1, for injecting the gas into the ground. Then, the gas is sucked in a manner of staggering a time of sucking the gas for each drilling pipe 3 for suction, through the drilling pipes 3 for suction penetrated on six positions corresponding to peaks of the regular hexagonal shape of each small area, for collecting the gas. Density of a contamination substance included in the collected gas is measured for each drilling pipe 3 for suction. Then, based on the density of the contamination substance, an ozone-containing gas is supplied through the drilling pipe 3 which is newly penetrated, for injecting the ozone-containing gas into the ground.SELECTED DRAWING: Figure 2 【課題】汚染地盤上において設定された略正六角形状からなる小領域の面積が、ある程度大きい場合でも無駄な浄化作業を行わずに済む効率的な汚染地盤の浄化方法を提供すること。【解決手段】地面上において一辺が一定の長さを有する略正六角形状からなる小領域を隙間なく四方八方に地面上に連続してハニカム状に複数設定する。各小領域Ｒ１等の中心位置Ｏ１等に貫入された注入用の試錐管３に気体を供給して地中に注入する。各小領域の略正六角形状の頂点に相当する６箇所の位置にそれぞれ貫入された吸引用の試錐管３を介して地中から気体を吸引用の試錐管３ごとに時間をずらして個別に吸引して回収する。回収した気体中に含まれる汚染物質の濃度を吸引用の試錐管３ごとに個別に計測する。計測した汚染物質の濃度に基づいて新たに貫入した試錐管３を介してオゾン含有ガスを供給し地中に注入する。【選択図】図２