sludge treatment by photocatalysis applying black and white light

被引：83

作者：

Sa da Rocha, Otidene Rossiter ^{[1
]}

Dantas, Renato F. ^{[2
]}

Menezes B. Duarte, Marta Maria ^{[2
]}

Lima Duarte, Marcia Maria ^{[1
]}

da Silva, Valdinete Lins ^{[2
]}

机构：

[1] Univ Fed Rio Grande do Norte, Dept Chem Engn, BR-59072970 Natal, RN, Brazil

[2] Univ Fed Pernambuco, Dept Chem Engn, BR-50740521 Recife, PE, Brazil

来源：

CHEMICAL ENGINEERING JOURNAL | 2010年 / 157卷 / 01期

关键词：

Petroleum waste; Advanced oxidation; Heterogeneous photocatalysis; Hydrocarbons; Polycyclic aromatic hydrocarbons; ADVANCED OXIDATION PROCESSES; DEGRADATION; SEDIMENTS; PAHS; SEA; DYE;

D O I：

10.1016/j.cej.2009.10.050

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Soil contamination by non-aqueous phase liquid compounds (NAPLs), mainly from petroleum hydrocarbons, has been a matter of great concern, especially due to aromatic and polycyclic aromatic hydrocarbon contamination, which can pose a health risk due to its carcinogenic and mutagenic properties. In this study, oil sludge treatment was carried out using heterogeneous photocatalysis (H2O2/UV/TiO2). A 2(3) factorial design experimental plan was used, applying black and white light reactors; in addition the effects of hydrogen peroxide (H2O2) concentration, TiO2 mass and irradiation time were evaluated using TOC removal as a response. Heterogeneous photocatalysis provided efficient degradation and mineralization of a large part of the organic matter. Moreover, the method also proved to be an alternative treatment for removing PAH from oil sludge, eliminating 100% of all PAH content from the oil sludge sample after 96 h of irradiation. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：80 / 85

页数：6

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