Efficient Decomposition of Trichloroethylene (TCE) in Groundwater by Ozone-Hydrogen Peroxide Treatment

Autor:	Nozomu Yasunaga, Junji Hirotsuji
Rok vydání:	2008
Předmět:	Environmental Engineering Ozone Trichloroethylene Environmental engineering Peroxide Decomposition chemistry.chemical_compound chemistry Environmental chemistry Environmental Chemistry Hydroxyl radical Diffuser (sewage) Hydrogen peroxide Groundwater
Zdroj:	Ozone: Science & Engineering. 30:127-135
ISSN:	1547-6545 0191-9512
DOI:	10.1080/01919510701861284
Popis:	It was verified that the ozone-hydrogen peroxide treatment (O3/H2O2) was very effective for decomposing trichloroethylene (TCE) in groundwater. The reaction efficiency of O3/H2O2 was 40% better than that of ozone treatment by using a diffuser type reactor and the optimum operating conditions were also revealed by laboratory-scale experiments and computer simulations. Taking these results into consideration, the 2-port ozone injection method using an ejector-type reactor was investigated to decompose TCE more rapidly and efficiently, and it was revealed that the ozone dose necessary for satisfying the Japanese water quality standard for drinking water (0.03mg/L) by the 2-port ozone injection method was 13% less than that by the conventional 1-port ozone injection method under the condition of the same amount of ozone injected. Also, the effectiveness of the 2-port injection method was proved by a sequential plant-scale experiment for about 40 days.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::894c460ba0918903175b9fe48d8b0465 https://doi.org/10.1080/01919510701861284 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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