COMBINING A SEQUENCING BATCH REACTOR WITH HETEROGENEOUS PHOTOCATALYSIS (TiO2/UV) FOR TREATING A PENCIL MANUFACTURER'S WASTEWATER

被引：12
|
作者：
Padovan, R. N. [1 ]
Azevedo, E. B. [1 ]
机构：
[1] Univ Sao Paulo, Mol Phys & Chem Dept, Inst Chem Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
来源：
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2015年 / 32卷 / 01期
关键词：
SBR; AOP; Photocatalysis; TiO2; Color removal; Toxicity; BIOLOGICAL OXIDATION PROCESSES; AQUEOUS-SOLUTIONS; DETOXIFICATION; BIODEGRADABILITY; DYESTUFF; REMOVAL; SLUDGE; DEGRADATION; BIOASSAYS; PHENOL;
D O I：
10.1590/0104-6632.20150321s00003103
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A Sequencing Batch Reactor (SBR) was combined with heterogeneous photocatalysis (TiO2/UV) as a tertiary treatment for a pencil manufacturer's wastewater. The SBR removed almost all Chemical Oxygen Demand (COD) from the wastewater, although color was barely removed. Photocatalysis was optimized using a factorial design. Final COD, Dissolved Organic Carbon (DOC), and color removals were 95%, 80%, and 93%, respectively. Treated wastewater showed no ecotoxicity towards Lactuca sativa. Color removal kinetics (photocatalysis) followed a pseudo-first order model. The SBR + AOP (Advanced Oxidation Process, TiO2/UV) combination was a feasibility choice for removing both COD and color from this wastewater.
引用
收藏
页码：99 / 106
页数：8
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