Assessing the impacts of sewage sludge amendment containing nano-TiO2 on tomato plants: A life cycle study

被引：39

作者：

Bakshi, Mansi ^{[1
,2
]}

Line, Clarisse ^{[1
,3
]}

Bedolla, Diana E. ^{[4
]}

Stein, Ricardo Jose ^{[5
]}

Kaegi, Ralf ^{[6
]}

Sarret, Geraldine ^{[7
,8
]}

del Real, Ana E. Pradas ^{[7
,8
,9
,10
]}

Castillo-Michel, Hiram ^{[9
]}

Abhilash, P. C. ^{[2
]}

Larue, Camille ^{[1
]}

机构：

[1] Univ Toulouse, CNRS, EcoLab, Toulouse, France

[2] Banaras Hindu Univ, Inst Environm & Sustainable Dev, Varanasi 221005, Uttar Pradesh, India

[3] Univ Paul Sabatier, CNRS, CIRIMAT, LCMI,Ctr Interuniv Rech & Ingn Mat,UMR 5085, F-31062 Toulouse 4, France

[4] Elettra Sincrotrone Trieste SCpA, Str Statale SS14,Km 163-5, I-34149 Basovizza, Italy

[5] Fac Murialdo, Marques Herval 701, BR-95060145 Caxias Do Sul, RS, Brazil

[6] Eawag, Particle Lab, CH-8600 Dubendorf, Switzerland

[7] Univ Grenoble Alpes, ISTerre Inst Sci Terre, F-38041 Grenoble, France

[8] CNRS, F-38041 Grenoble, France

[9] ESRF European Synchrotron, Beamline ID21, CS40220, F-38043 Grenoble 9, France

[10] IMIDRA Madrid Inst Agr Res, N-2 Km 38,200, E-28800 Alcala De Henares, Spain

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2019年 / 369卷

关键词：

Crop plant; Sewage sludge; Soil; Nano-TiO2; Phytotoxicity; SOIL MICROBIAL COMMUNITIES; TIO2; NANOPARTICLES; TITANIUM-DIOXIDE; SILVER NANOPARTICLES; MEDICAGO-TRUNCATULA; WATER; NANOTECHNOLOGY; NANOMATERIALS; RESPONSES; TOXICITY;

D O I：

10.1016/j.jhazmat.2019.02.036

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Increasing evidence indicates the presence of engineered nanoparticles (ENPs) in sewage sludge derived from wastewater treatment. Land application of sewage sludge is, therefore, considered as an important pathway for ENP transfer to the environment. The aim of this work was to understand the effects of sewage sludge containing nano-TiO2 on plants (tomato) when used as an amendment in agricultural soil. We assessed developmental parameters for the entire plant life cycle along with metabolic and bio-macromolecule changes and titanium accumulation in plants. The results suggest that the sewage sludge amendment containing nano-TiO2 increased plant growth (142% leaf biomass, 102% fruit yield), without causing changes in biochemical responses, except for a 43% decrease in leaf tannin concentration. Changes in elemental concentrations (mainly Fe, B, P, Na, and Mn) of plant stem, leaves and, to a lesser extent fruits were observed. Fourier-transformed infrared analysis showed maximum changes in plant leaves (decrease in tannins and lignins and increase in carbohydrates) but no change in fruits. No significant Ti enrichment was detected in tomato fruits. In conclusion, we evidenced no acute toxicity to plants and no major implication for food safety after one plant life cycle exposure.

引用

页码：191 / 198

页数：8

共 80 条

[1] Estimation of total phenolic content and other oxidation substrates in plant tissues using Folin-Ciocalteu reagent [J].