Treatment of Saline Wastewater Contaminated with Hydrocarbons by the Photo-Fenton Process
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- 作者：José ; Ermí ; rio F. Moraes ; Frank H. Quina ; Clá ; udio Augusto O. Nascimento ; Douglas N. Silva ; and Osvaldo Chiavone-Filho
- 刊名：Environmental Science & Technology
- 出版年：2004
- 出版时间：February 15, 2004
- 年：2004
- 卷：38
- 期：4
- 页码：1183 - 1187
- 全文大小：74K
- 年卷期：v.38,no.4(February 15, 2004)
- ISSN：1520-5851
文摘
The application of the photo-Fenton process to thetreatment of saline wastewater contaminated withhydrocarbons is investigated. Aqueous saline solutionscontaining raw gasoline were used as a model oil-field-produced water. The dependence on concentrations of thefollowing reagents has been appropriately evaluated:hydrogen peroxide (100-200 mM), iron ions (0.5-1 mM),and sodium chloride (200-2000 ppm). The reactions weremonitored by measurement of the absorption spectraand total organic carbon (TOC). Experimental resultsdemonstrate that the photo-Fenton process is feasible forthe treatment of wastewaters containing hydrocarbons,even in the presence of high concentrations of salt. Theeffect of the salt in this process is described through a seriesof reactions. A simple feedforward neural networkmodel was found to correlate well the observed data forthe degradation process.