原著論文
紫外線照射光分解における溶存酸素除去の有効性
クリーニング事業所廃液中のテトラクロロエチレンの水処理技術
2001 年 24 巻 8 号 p. 513-519
詳細
2001 年 24 巻 8 号 p. 513-519
In order to develop a new treatment plant which is easily maintained at low cost, does not cause secondary pollution, and is suitable for an operator of small business like dry-cleaning, photodegradation of tetrachloroethylene (PCE) in the wastewater from dry-cleaning with three types treatment apparatus (45ml Spiral, 270ml Hollow Circular Cylinder, and 3,000ml Circular Cylinder) and test plant (1,200ml) were examined.
The degradation rate, the degradation efficiency and the concentration of trichloroethylene (TCE), and the intermediate compounds produced by photodegradation of PCE were investigated under the UV irradiation alone at 185nm and 254nm in the presence (oxygenic condition: Oxyg) and absence (oxygen free condition: OxyF) of dissolved oxygen (DO).
Though the difference of the degradation rates of PCE under Oxyg and OxyF was not observed for all of three types, an intermediate TCE product was prevented under OxyF.
