A spectroscopic study to assess heavy metals absorption by a combined hemp/spirulina system from contaminated soil

Environmental Advances

Marica Antonicelli¹  Maurizio Triggiani²  Elhussein Mohamed Fouad Mourad Hussein Ahmed²  Onofrio Dursi³  Mario Latronico⁴  Piero Mastrorilli⁴  Rosa Ragone⁴  Danila Chiapperini⁵  Biagia Musio⁵  Vito Gallo⁵  Flavia Grieco⁵  Raffaele Settanni⁵ 

[1] Corresponding authors at: Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Polytechnic University of Bari, Via Orabona, 4, Bari 70125, Italy.;Innovative Solutions S.r.l.-Spin-off company of Polytechnic University of Bari, Zona H 150/B, BA, Noci 70015, Italy;International Centre for Advanced Mediterranean Agronomic Studies of Bari (CIHEAM Bari), Via Ceglie 9, BA, Valenzano, Apulia 70010, Italy;ApuliaKundi S.r.l., via N. Copernico snc, Zona PIP, BA, Gravina in Puglia 70024, Italy;Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Polytechnic University of Bari, Via Orabona, 4, Bari 70125, Italy;

关键词: Non-targeted nuclear magnetic resonance;    Phytoremediation;    Phycoremediation;    Arthrospira platensis;    Cannabis sativa L.;    Metal quantification;   

DOI  :  

来源: DOAJ

【 摘 要 】

The efficiency of hemp (Cannabis sativa L.) in remediating sites contaminated with heavy metals has received great attention in recent years. The main advantage of this technology relies on its inherent sustainability with a potential re-utilization of the significant amount of produced biomass which acts as a valuable flow resource. In this study, a combined system consisting of Cannabis sativa L. (hemp) and the blue-green alga Arthrospira platensis (spirulina) was tested to clean up soils contaminated with cadmium, chromium, copper, nickel, lead, and zinc. The application of non-targeted NMR methods combined with ICP-AES quantification provided an efficient strategy for detecting residual heavy metals within plant tissues and soil. Importantly, non-targeted metabolomic analysis helped to reveal the relationships between metabolites distribution in hemp tissues and the sequestered metals. It was demonstrated that hemp accumulates copper, chromium, nickel, and zinc preferentially in the leaves, while lead is distributed mainly in the stems of the plant. Moreover, it was found that, at higher concentrations, spirulina acts as a growth promoter, contributing to an increase in the final generated biomass. Results reported in this work indicate that the hemp/spirulina system represents a suitable tool for remediation of metal contaminated soils by modulating biomass production and metals uptake.

【 授权许可】

Unknown