Experimental study on dynamic response of micron aluminum powder

Deng, Yongxing; Lu, Xin; Li, Lei; Xu, Sheng; Miao, Chunhe; Zhang, Beichen

doi:10.1007/s10035-022-01248-0

Cited by 1 publication

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Heavy metal ions (HMs) in soils have a long residual period and strong toxicity and easily migrate, which makes heavy metal pollutants easily flow into the food chain and ultimately affect human life and health (Huang et al, 2020a;Huang et al, 2020b;Khirul et al, 2020;Wang et al, 2021;Deng et al, 2022). A large part of the land polluted by heavy metals is cultivated land and accounts for 8% of the total cultivated land in China (Liu, 2015;Yu et al, 2021;Bai et al, 2022a), resulting in the reduction of grain production and the decline of grain quality (Jiang et al, 2018;Huang et al, 2020c;Rodriguez-Arellao et al, 2021;Wang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Adsorption mechanism of shell powders on heavy metal ions Pb2+/Cd2+ and the purification efficiency for contaminated soils

Bai

Sun

et al. 2023

Front. Earth Sci.

View full text Add to dashboard Cite

The adsorption capacity of oyster shell powders (SPs) and the adsorption mechanism of heavy metal ions (HMs; i.e., cadmium ions Cd2+ and lead ions Pb2+) on SPs are discussed by means of adsorption kinetics tests, adsorption-desorption tests, scanning electron microscopy and Fourier transform infrared spectroscopy. The influences of seepage velocity, heavy metal types, and SP addition amount/concentration on the adsorption effect of SPs in the treatment of HMs in laterite as well as quartz sand were analyzed. Studies have shown that i) the adsorption of HMs on SPs can be divided into three stages, i.e., the surface adsorption stage, the internal pore diffusion stage, and the equilibrium stage; ii) with the increase in seepage velocity, the effluent concentration of HMs will slightly increase, and the residual amounts at each section of the column generally decrease rapidly with the increase in migration distance; iii) the increase in the concentration of SP solution provides more adsorption points for the adsorption of HMs, and finally, the amount of HMs desorbed from quartz sand is reduced, which also reduces the concentration of HMs in the effluent. Overall, SPs possess high purification efficiency for the HMs of contaminated soils.

show abstract