Integrating redox-electrodialysis and electrosorption for the removal of ultra-short- to long-chain PFAS.

A major challenge in per- and polyfluoroalkyl substances (PFAS) remediation has been their structural and chemical diversity, ranging from ultra-short to long-chain compounds, which amplifies the operational complexity of water treatment and purification. Here, we present an electrochemical strategy to remove PFAS from ultra-short to long-chain PFAS within a single process. A redox-polymer electrodialysis (redox-polymer ED) system leverages a water-soluble redox polymer with inexpensive nanofiltration membranes, facilitating the treatment of varied chain lengths of PFAS without membrane fouling.

Synthesis of Sorption Materials from Low Grade Titanium Raw Materials.

In this paper, a universal technology is proposed for processing low-titanium mineral raw material-apatite-nepheline ore waste, including its treatment with sulfuric or hydrochloric acid in a two-stage mode with a sequential increase in the concentration. This technique allowed us to remove nepheline and apatite in the first stage and achieve a titanium mineral content of TiO of more than 30%; in the second stage, we were able to convert the titanium into its precursors-titanyl sulfate monohydrate TiOSO·HO and a hybrid rutile-silica composition. The key stage in the sorbent synthesis is the reaction of the precursor with a phosphoric acid solution.

[Peculiarities of treatment with antidepressants in patients with schizoaffective disorder in the interictal period].

Objective: To investigate the effect of therapy with various classes of antidepressants on the quality of remission and adherence to therapy in patients with schizoaffective disorder (SAD) in remission.

Material And Methods: We examined 87 outpatients, including 29 men (33.33%), 58 women (66.

Mineral Layer Fillers for the Production of Functional Materials.

An original method based on the use of technogenic waste from the processing of mineral-layered materials, in particular phlogopite for obtaining highly efficient functional compositions of the "mica-TiO", has been developed. The composition core is a nanosized mica flake coated with mesoporous titanium dioxide of an anatase or rutile structure. Energy-saving and environmentally friendly technological methods are based on the splitting of the mica followed by heterogeneous electrohydrolysis of a mixture of titanium (IV) sulfate solution and flake particles.