RAPID EVALUATION METHOD OF ELIMINATION RATE OF ADSORPTION TARGET SUBSTANCE

PROBLEM TO BE SOLVED: To provide a method of rapidly evaluating a rate of elimination of an adsorption target substance from an adsorbent in a polluted water treatment in which the adsorbent is used.SOLUTION: A method of rapidly evaluating a rate of elimination of an adsorption target substance from an adsorbent includes (a) an adsorption step for obtaining an amount of adsorption by agitating an adsorbent and a liquid containing an adsorption target substance, followed by making the adsorption target substance be adsorbed by the adsorbent until an equilibrium state of an amount of adsorption is obtained, (b) a filter step for separating the adsorbent by which the adsorption target substance is adsorbed, (c) an elimination step for solid-liquid separating the adsorbent after agitating by adding a liquid that does not contain the adsorption target substance to the adsorbent separated in the filter step, (d) a step of obtaining an amount of elimination when the adsorption target substance is eliminated from the adsorbent by measuring an amount of the adsorption target substance in the liquid separated in the elimination step, and (e) a step of obtaining a rate of elimination of the adsorption target substance from a ratio of the amount of elimination to the amount of adsorption.SELECTED DRAWING: Figure 3 【課題】吸着材を用いる汚染水処理において、吸着材からの吸着対象物質の脱離率を迅速に評価する方法を提供することを課題とする。【解決手段】（ａ）吸着材と、吸着対象物質を含む液を撹拌し、吸着量が平衡状態になるまで吸着対象物質を吸着材に吸着させ、吸着量を求める吸着工程と、（ｂ）吸着対象物質を吸着させた吸着材を分離するろ過工程と、（ｃ）ろ過工程で分離した吸着材に、吸着対象物質を含まない液を加え撹拌した後、吸着材を固液分離する脱離工程と、（ｄ）脱離工程で分離した液中の吸着対象物質の量を測定し、吸着対象物質が吸着材から脱離した脱離量を求める工程と、（ｅ）脱離量の吸着量に対する割合から、吸着対象物質の脱離率を求める工程と、を含むことを特徴とする吸着材からの吸着対象物質の脱離率の迅速評価方法である。【選択図】図３