H_2O_2－O_3氧化法处理染料中间体H酸和1－氨基蒽醌生产废液的研究

Application of the H_2O_2-O_3 Process for the Treatment of Wastewaters from the Production Process of Naphthalene-sulfonate and Anthraquenone Sulfonic Acid Dye Intermediates

研究采用羟基自由基氧化法处理难生物降解染料中间体Ｈ酸和１－氨基蒽醌生产废液提高其生物降解性。研究表明：羟基自由基是一种非常强的氧化剂，能迅速分解有机物，改善废水的生物降解性能；经羟基自由基氧化处理后，能提高废水的絮凝处理效率。本文还对羟基自由基氧化反应机理作了探讨。

A H2O2-O3 proceed in which hydroxyl free radical (OH) is generated and acts as a non-selectively strong oxidizer was developed and applied to treating refractory wastewaters from the production process of naphthalenesulfonate and anthraquenone sulfonic acid dye intermediates before a biological treatment.It was found that this treatment process could quickly decomPOse refractory organics in the wastewaters and had a higher ability to improve their biodegradabilities than other conventional methods. Thus treated wastewaters could also be coagulated and flocculated more effectively. It is also found that some groups of the aromatic comPOunds in the effluents from this treatment process were substituted with one or more OH groups, indicating that the decomPOsition of organics in the treatment with this newly developed process may follow a hydroxyl free radical mechanism.