Photodegradation of organic-derived sludge in Anzali wetland using titanium dioxide (TiO2)

被引：1

作者：

Marefat, A. ^{[1
]}

Karbassi, A. ^{[1
]}

Aghabarari, B. ^{[2
]}

Rodriguez-Castellon, E. ^{[3
]}

机构：

[1] Univ Tehran, Coll Engn, Sch Environm, Tehran, Iran

[2] Mat & Energy Res Ctr, Dept Nanotechnol & Adv Mat, Karaj, Iran

[3] Univ Malaga, Fac Sci, Dept Inorgan Chem Crystallog & Mineral, Unidad Asociada ICP CSIC, Malaga 29071, Spain

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY | 2023年 / 20卷 / 05期

关键词：

Titanium dioxide; Sludge; Organic compound; Decomposition; PHOTOCATALYTIC DEGRADATION; WATER; NANOPARTICLES; DISINFECTION; ADSORPTION; BEHAVIOR;

D O I：

10.1007/s13762-023-04860-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The substantial sludge, composed of organic compounds, was detected in sediments samples of Anzali wetland. Photocatalysts have a great potential for decomposing organic compounds. In the present research, an attempt was made to decompose the sludge of Anzali wetland using titanium dioxide nanoparticles (TiO2 NPs). For this purpose, Luzchem's CCP-4 V photoreactor, which is equipped with 12 UV lamps, was used. The influences of UV intensity, TiO2 concentration and exposure time were investigated for the removal of sludge. The statistically analysis showed that exposure time was the most effective factor in removal of sludge. The results also revealed that 10-mu g/L TiO2 after long-term exposure (5 days) would decompose about 37% of organic contents of sludge. Further detailed studies revealed that due to the decomposition of organics, about 2100, 1700, 1650, 270 and 181 mu g/L of Sr, Mn, Si, Al and P would be released into the water column, respectively.

引用

页码：4873 / 4882

页数：10

共 41 条

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