Removal of persistent organic pollutants from water using a newly developed atmospheric plasma reactor

被引:28
|
作者
Tampieri, Francesco [1 ]
Giardina, Agata [1 ]
Bosi, Franco J. [2 ]
Pavanello, Alice [1 ]
Marotta, Ester [1 ]
Zaniol, Barbara [3 ]
Neretti, Gabriele [4 ]
Paradisi, Cristina [1 ]
机构
[1] Univ Padua, Dept Chem Sci, Via Marzolo 1, I-35131 Padua, Italy
[2] Univ Padua, Dept Ind Engn, Via Marzolo 9, I-35131 Padua, Italy
[3] Consorzio RFX, Corso Stati Uniti 4, I-35127 Padua, Italy
[4] Univ Bologna, Dept Elect Elect & Informat Engn, Viale Risorgimento 2, I-40136 Bologna, Italy
关键词
metolachlor; phenol; reactive oxygen species; streamer discharge; water treatment; AQUEOUS-SOLUTION; WASTE-WATER; DISCHARGE REACTOR; CORONA-DISCHARGE; PHENOL; DEGRADATION; DECOMPOSITION; TOXICITY; OZONE;
D O I
10.1002/ppap.201700207
中图分类号
O59 [应用物理学];
学科分类号
摘要
A new bench-top reactor employing a streamer discharge in air was developed and tested for potential use in an advanced oxidation stage in water treatment processes. The complex heterogeneous system and the ensuing chemical processes were characterized using an integrated approach to map the morphology of the plasma/gas/liquid interface, identify the plasma short-lived excited species, determine the oxidants in solution and monitor the organic pollutants degradation. Three model pollutants were used in these experiments, rhodamine B, phenol and metolachlor. The first two are common standards used to evaluate the performance of advanced oxidation processes. Metolachlor is a widely used herbicide listed among the most important recalcitrant emerging organic pollutants. Energy efficiency, kinetics and products of our tests show a good performance of the reactor. Specifically, mineralization appears feasible also in the case of metolachlor.
引用
收藏
页数:12
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