丙烯酸化工废水处理研究进展

丙烯酸及其酯作为丙烯的重要工业衍生物发展迅速,但是在丙烯酸及其酯生产过程中会产生大量的高浓度有机废水,常含丙烯酸、乙酸、甲苯、甲基丙烯酸等有毒有害的生化难降解有机污染物,难以处理。现有的工业处理方法主要有焚烧法、生化法、催化湿式氧化法等,虽然工艺成熟,但存在处理成本高等问题。本文综述了丙烯酸废水的主要处理技术及回收利用现状的研究进展。

Advances in Acrylic Acid Wastewater Treatment

The vast organic wastewater produced in the production of acrylic acid （ester） contained many kinds of pollutants such as acrylic acid, acetic acid, toluene, methyl acrylic acid and so on. The wastewater was named acrylic acid wastewater with the characteristics of strong toxicity and refractory behavior. Three treatment methods were used to treat the wastewater in industries. These methods were incineration method, biochemical method and catalytic wet oxidation method, respectively. Some faults were concerned with the methods, such as consumption of fuel oil during incineration, dilution with high ratio to avoid the toxicity and pretreatment conducted to improve the biodegradability, and deactivation of catalyst in catalytic wet oxidation process. The treatment of acrylic acid wastewater was paid a lot attention to recently, some progresses were reviewed. The main developments were focused on the design of incinerator improving the safety and stability on operation, improvement on biodegradability of acrylic acid wastewater with more effective methods, lasting the life of catalyst needed in the catalytic wet oxidation, and significantly on reuse of pollutants in acrylic acid wastewater.