A system for electrochemically enhanced water filtration is provided. The system includes: a chamber plug-flow electrochemical cell; a first cathode and anode pair disposed in the cell; and a second cathode and anode pair disposed in the cell. The first and the second pair are collectively operative to apply a 2D electric field in at least one of a horizontal direction and a vertical direction with respect to the chamber plug-flow electrochemical cell.

A system for generation of radicals in a liquid (e.g., OH and derivatively H.sub.2O.sub.2 in water) by a plasma reactor, including a first electrode having a rod shape or a tubular shape; a dielectric tubular housing coaxial with the first electrode and enclosing the first electrode, and having a gap to the first electrode of 0.3-30 mm; a second electrode on an outside of the dielectric tubular housing and coaxial with first electrode with a gap 0.3-30 mm; a high voltage power supply providing voltage oscillations or pulses of 0.5-30 kV and a frequency 1-50 kHz between the first and second electrodes; and a pump or a Venturi injector on an output of the plasma reactor and a chock valve on an input of reactor for generating a low water pressure in the gap between first and second electrodes so as to generate boiling in the gap.

Use of Keplerate type polyoxomolybdates of the general structure Mo.sub.72M.sub.30, wherein M is selected from the group consisting of Fe, Cr, V or Mo.sub.2, for decontaminating aqueous media (water) from inorganic and organic pollutants.

A double-layered material consisting of a cellulose nanofibrous (CNF) layer and a graphene oxide (GO) nanolayer coating, wherein the material comprises 0.5-4 wt. % of GO, preferably 1-2 wt. % of GO, in relation to the total weight of the material is disclosed, as well as methods for producing said material, membranes comprising said material, and uses of said material and membranes Thus, the present invention provides a cellulose nanofiber material with a high flux, a good separation performance and a strong mechanical and structural stability in solution.

The invention relates to a process for working up water containing 4,4′-dichlorodiphenyl sulfoxide and/or 4,4′-dichlorodiphenyl sulfone as impurities, comprising: (a) mixing the water containing 4,4′-dichlorodiphenyl sulfoxide and/or 4,4′-dichlorodiphenyl sulfone as impurities with an organic solvent in which 4,4′-dichlorodiphenyl sulfoxide and/or 4,4′-dichlorodiphenyl sulfone have a solubility of at least 0.5 wt % based on the amount of 4,4′-dichlorodiphenyl sulfoxide and/or 4, 4′-dichlorodiphenyl sulfone and organic solvent at 20° C., which forms a two-phase system with water and which can be stripped from water with a stripping gas and subsequently separating the obtained mixture into an aqueous phase and an organic phase, and (b) stripping the organic solvent from the aqueous phase with a stripping gas.

A porous activated asphaltene material is described with a method of making and a method of using for the adsorption of a contaminant from a solution. The porous activated asphaltene material may be made by functionalizing solid asphaltene with nitric acid, and then treating the product with a metal hydroxide. The resulting porous activated asphaltene material exhibits a high porosity, and may be cleaned and reused for adsorbing contaminants.

Compositions made of laminate comprised of porous carbon nanotube (CNT) are disclosed. Uses of the Compositions, particularly for reducing a formation of a load of a microorganism or of a biofilm, are also disclosed.

A porous activated asphaltene material is described with a method of making and a method of using for the adsorption of a contaminant from a solution. The porous activated asphaltene material may be made by functionalizing solid asphaltene with nitric acid, and then treating the product with a metal hydroxide. The resulting porous activated asphaltene material exhibits a high porosity, and may be cleaned and reused for adsorbing contaminants.

A polymer/activated carbon composite made up of a branched polyethylenimine and magnetic cores involving Fe.sub.3O.sub.4 disposed activated carbon. The magnetic cores have activated carbonyl groups on the surface. A process for removing organic dyes, such as methyl red, as well as heavy metal ions from a polluted aqueous solution or an industrial wastewater utilizing the composite is introduced. A method of synthesizing the polymer/activated carbon composites is also specified.

A method for electrolysis-ozone-corrosion inhibitor/electrolysis-ozone-hydrogen peroxide-corrosion inhibitor coupling treatment on toxic and refractory wastewater includes the following steps: adding toxic and refractory wastewater to be treated into a wastewater treatment reaction tank equipped with a plate anode and a plate cathode, and starting a direct current (DC) power supply connected to the plate anode and the plate cathode to treat the toxic and refractory wastewater at an appropriate current density under stirring, during which a corrosion inhibitor and hydrogen peroxide are added to the toxic and refractory wastewater to be treated and ozone is introduced into the toxic and refractory wastewater to be treated through an aeration device. The method can increase the production rate and production quantity of free radicals in a reaction system, effectively improve the treatment efficiency for toxic and refractory wastewater, and reduce the treatment cost.