Research progress of novel bio-denitrification technology in deep wastewater treatment.

Excessive nitrogen emissions are a major contributor to water pollution, posing a threat not only to the environment but also to human health. Therefore, achieving deep denitrification of wastewater is of significant importance. Traditional biological denitrification methods have some drawbacks, including long processing times, substantial land requirements, high energy consumption, and high investment and operational costs.

Utility and mechanism of magnetic nano-MnFeO/MWNT activation for oxidative degradation of tetracycline by persulfate.

A magnetic MnFeO/MWNT nanocomposite activated with sodium persulfate (PDS) was investigated for the removal of the widely used antibiotic tetracycline (TC). The best-performing 80 wt.% MnFeO/MWNT nanocomposite was screened for catalytic degradation of TC by comparing the catalytic and adsorption processes.

Hypoxic preconditioning neural stem cell transplantation promotes spinal cord injury in rats by affecting transmembrane immunoglobulin domain-containing.

Objective: To explore the effects of hypoxic preconditioning neural stem cell (P-NSC) transplantation on rats with spinal cord injury (SCI).

Methods: After identification, the NSCs were treated with hypoxic preconditioning. The NSCs migration was detected by Transwell method.

RETRACTED: Preparation of molecularly imprinted metal-organic frameworks by in situ self-assembly template strategy for selective adsorption of antibiotics.

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Removal of Pb (II) from aqueous solution by sulfur-functionalized walnut shell.

Heavy metal lead poses a great threat to organisms and the environment; the removal of lead has drawn more and more attention in recent years. In this paper, the sulfur-containing functional group was grafted onto the walnut shell with xanthate to synthesize a low-cost biosorbent (SWM) for the removal of lead in water. The synthesized adsorbent was characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and Brunner-Emmet-Teller (BET).