Efficient removal of phosphorus and nitrogen from aquatic environment using sepiolite-MgO nanocomposites: preparation, characterization, removal performance, and mechanism.

Excessive phosphorus will lead to eutrophication in aquatic environment; the efficient removal of phosphorus is crucial for wastewater engineering and surface water management. This study aimed to fabricate a nanorod-like sepiolite-supported MgO (S-MgO) nanocomposite with high specific surface area for efficient phosphate removal using a facile microwave-assisted method and calcining processes. The impact of solution pH, adsorbent dosage, contact time, initial phosphate concentrations, Ca addition, and N/P ratio on the phosphate removal was extensively examined by the batch experiments.

Enhance antimony adsorption from aquatic environment by microwave-assisted prepared FeO nanospherolites.

A novel hierarchically nanostructured magnetite (FeO) was manufactured using microwave-assisted reflux method without surfactants. The nanostructured FeO is formed via the co-precipitation of Fe(III) and Fe(II), followed by a nanocrystal aggregation-based mechanism. Moreover, the effects of solution pH, contact time, initial Sb concentration, coexisting anions, and recycle numbers on the adsorption of nanostructured FeO toward Sb were extensively examined in the batch adsorption tests.

Study of soil microorganisms modified wheat straw and biochar for reducing cadmium leaching potential and bioavailability.

The application of crops straw and biochar in trace metals remediation from the contaminated environment attracted more and more attention during the past decade. Although there has been some review work on the mechanism of trace metals stabilization by crops straw, the effects and mechanisms of interaction among soil indigenous-microbes and crops-straw for trace metal adsorption and stabilization is still unclear. In this study, the dynamic effects along with potential mechanisms of wheat-straw (WS), wheat-straw biochar (WBC) and biologically modified wheat-straw (BMWS) were conducted to investigate the adsorption, leaching behaviour, chemical fractions and bioavailability of cadmium (Cd).

Rhizosphere iron and manganese-oxidizing bacteria stimulate root iron plaque formation and regulate Cd uptake of rice plants (Oryza sativa L.).

Iron plaque is the amorphous and/or crystalline layer of Fe and Mn (hydr)oxides formed on the root surface of wetland plants. It could adsorb and co-precipitate metal(loid)s at the rhizosphere, thus modulating the uptake and accumulation of metal elements in plants. In this study, the Fe(II)/Mn(II)-oxidizing bacteria Burkholderia sp.

Percutaneous Vertebral Augmentation for Osteoporotic Vertebral Compression Fracture in the Midthoracic Vertebrae (T5-8): A Retrospective Study of 101 Patients with 111 Fractured Segments.

Objective: Data reporting percutaneous vertebroplasty (PVP) or percutaneous balloon kyphoplasty (PKP) application to the midthoracic vertebrae remain limited. This study aimed to summarize our experiences and explore the efficacy and safety of PVP or PKP in dealing with osteoporotic vertebral compression fracture (OVCF) in the midthoracic vertebrae.

Methods: Patients receiving PVP or PKP for midthoracic OVCF in our institution from January 2015 to January 2018 were retrospectively enrolled.

One-step synthesis of AgO@Mg(OH) nanocomposite as an efficient scavenger for iodine and uranium.

AgO nanoparticles anchored on the Mg(OH) nanoplates (AgO@Mg(OH)) were successfully prepared by a facile one-step method, which combined the Mg(OH) formation with AgO deposition. The synthesized products were characterized by a wide range of techniques including powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and nitrogen physisorption analysis. It was found that AgO nanoparticles anchored on the Mg(OH) nanoplates show good dispersion and less aggregation relative to the single AgO nanoaggregates.