Application of ozone based treatments of secondary effluents

被引：64
作者：
Tripathi, Smriti [1 ]
Pathak, Vinita [1 ]
Tripathi, Devendra Mani [1 ]
Tripathi, B. D. [1 ]
机构：
[1] Banaras Hindu Univ, Ctr Environm Sci & Technol, Varanasi 221005, Uttar Pradesh, India
来源：
BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 03期
关键词：
Ozonation; Disinfection; DBPs; BDOC; DOMESTIC WASTE-WATER; BY-PRODUCTS; OZONATION; DISINFECTION; PHARMACEUTICALS; OXIDATION; REMOVAL; ALDEHYDES; PHASE; BEER;
D O I：
10.1016/j.biortech.2010.11.028
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
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, UV254, 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. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2481 / 2486
页数：6
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