ferric hydroxidesとは 意味・読み方・使い方

The treatment method of hexavalent chromium-containing waste water is characterized in that a ferric salt is added to the hexavalent chromium- containing waste water and the waste water is adjusted to a pH of 4.5-6.5 and is coprecipitated with iron hydroxides which produce chromium.例文帳に追加

六価クロム含有排水に第二鉄塩を添加し、pH４.５〜６.５に調整して、クロムを生成する水酸化鉄と共沈させることを特徴とする六価クロム含有排水の処理方法。 - 特許庁

When the alkali is added to the water to be treated containing dissolved metals to precipitate the heavy metals as their hydroxides and to recover the sediment as the heavy metal sludge, a sodium sulfite aqueous solution is added to the water to be treated in the presence of a ferric ion to convert at least a part of the heavy metal hydroxides to their oxides.例文帳に追加

溶存金属を含有する被処理水中にアルカリを添加して該重金属を重金属水酸化物として沈殿させ、該沈殿を重金属スラッジとして回収するに際し、該被処理水中に第二鉄イオンの存在下で、亜硫酸ナトリウム水溶液を添加し、該重金属水酸化物の少なくとも一部を重金属酸化物に変換させる。 - 特許庁

In the preceding step, the pH value of treated water is enhanced higher than the initial value and is kept basic and, at the same time, ferric chloride as a coagulant is added to the treated water, thereby, nickel and other heavy metals in the treated water is coagulated and is precipitated and separated as the hydroxides.例文帳に追加

先行ステップのとき、処理水のｐＨ値を初期値よりも高めて塩基性に保持するとともに凝集剤たる塩化第二鉄を処理水に添加して処理水中のニッケルや他の重金属を凝集し水酸化物として沈澱分離させる。 - 特許庁