臭氧在二级出水处理中的应用。
Application of ozone based treatments of secondary effluents.
机构信息
Banaras Hindu University, Varanasi, India.
出版信息
Bioresour Technol. 2011 Feb;102(3):2481-6. doi: 10.1016/j.biortech.2010.11.028. Epub 2010 Nov 13.
The present work was aimed at studying the efficiency of ozone in oxidation processes, coliform inactivation and Disinfection Byproducts (DBPs) formation, associated with the potential of ozone to increase the Biodegradable Dissolved Organic Carbon (BDOC) in secondary effluent with applied ozone doses of 5.0, 10.0 and 15.0 mg/L for contact times of 2, 5 and 10 min. The wastewater used in this work was collected from the Bhagwanpur Sewage Treatment Plant, Varanasi, India. Results of this experiment showed that 10 mg O(3)/L O(3) for 5 min exposure was found most suitable dose for highest degradation of COD, TOC, UV(254), color, turbidity and total nitrogen parameters. The inactivation range of microbial biomass range was found in between 95% and 98%. Experiment revealed the fact that aldehydes and carboxylic acid formation were significantly related with the ozone dose and exposure time and ozone might enhance the treatment efficiency of secondary effluent treatment.
本工作旨在研究臭氧在氧化过程、大肠菌群失活和消毒副产物（DBPs）形成方面的效率，以及臭氧在接触时间为 2、5 和 10 分钟，臭氧投加量为 5.0、10.0 和 15.0 mg/L 时增加二级出水可生物降解溶解性有机碳（BDOC）的潜力。本工作中使用的废水取自印度瓦拉纳西的 Bhagwanpur 污水处理厂。该实验结果表明，10 mg O(3)/L O(3)，5 min 接触时间是最适合的剂量，可实现 COD、TOC、UV(254)、颜色、浊度和总氮参数的最高降解。微生物生物量的失活范围在 95%至 98%之间。实验结果表明，醛类和羧酸类的形成与臭氧剂量和暴露时间有显著关系，臭氧可能会提高二级出水的处理效率。
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