A purification system is for purifying a mixture containing a first solvent, a second solvent, and an impurity. The purification system includes a first membrane separation device including a pervaporation membrane and a second membrane separation device including a filtration membrane. The pervaporation membrane separates the mixture into a first permeated fluid and a first concentrated fluid. The first permeated fluid has a lower concentration of the impurity than that in the mixture, and the first concentrated fluid has a higher concentration of the impurity than that in the mixture. The filtration membrane separates the first concentrated fluid into a second permeated fluid and a second concentrated fluid. The second permeated fluid has a lower concentration of the impurity than that in the first concentrated fluid, and the second concentrated fluid has a higher concentration of the impurity than that in the first concentrated fluid.

A water treatment apparatus includes: a plurality of plate-shaped ground electrodes; a high-voltage electrode unit having counter electrode portions opposing the ground electrodes, support portions supporting the counter electrode portions, and a voltage receiving portion for receiving a high voltage; a water supply unit for supplying to-be-treated water to between the ground electrodes from above, insulating members each having a lower end portion fixed to a support structure fixing lower end portions of the ground electrodes, and an upper end portion connected to the voltage receiving portion of the high-voltage electrode unit. The lower ends of the support portions of the high-voltage electrode unit are held in a space between the ground electrodes, and a portion where each insulating member and the high-voltage electrode unit are connected to each other is located above the water supply unit, so that electric leak due to the to-be-treated water is inhibited.

A composite material is provided comprising a porous polymeric matrix having metal-organic framework (MOF) domains dispersed within the porous polymeric matrix, each of said MOF domains in fluid communication with the external environment through the pores in the porous polymeric matrix. A process of using the composite material to chemically modify or detoxify a chemical warfare agent or a toxic industrial chemical is also provided. The chemical warfare agent or the toxic industrial chemical is brought into contact with a MOF domain within the porous polymeric matrix so that the MOFs adsorb and chemically modify the chemical warfare agent or the toxic industrial chemical. A process for producing such a composite material is also disclosed.

Present invention is related to a high performance photothermal conversion materials, membrane, layer structure and applications thereof. The said materials comprise an UV and infrared absorbed material and a visible light absorbed material with at least one of or both of these materials has photothermal conversion ability. These materials could be further produced as a porous membrane or foam layer with a plastic material. Further by layered with another hydrophilic fiber layer, a porous layer structure could be obtained by the present invention with high performance photothermal conversion, uni-direction water transportation and photocatalytic abilities. The present invention could absorb a wide range of light source (UV-to-vis-to-NIP) and convert to another energy like heat solving the insufficiency of conventional photothermal conversion material.

Disclosed is an electrocatalytic degradation device for organic wastewater, which includes an electrocatalytic oxidation reactor, a spray tower and a drying tower. The electrocatalytic oxidation reactor is provided with a hydroxyl generator, a catalyst filler and a box body. The box body of the electrocatalytic oxidation reactor is provided with a gas gathering device connected with the spray tower. An upper gas outlet of the spray tower is connected with the drying tower. The disclosure combines the electrooxidation reaction with the catalytic reaction to improve the electrooxidation efficiency of the electrocatalytic oxidation reactor and efficiently degrade the high salt high organic wastewater. The decomposed by-products are effectively utilized. The generated hydrogen is collected by the gas gathering device and enters the spray tower. The CO.sub.2 gas is absorbed after treatment. The CO.sub.2-removed gas passes through the drying tower to absorb moisture to obtain pure hydrogen.

A method of producing a porous carbon composite fibrous mats formed of a network of carbon fibers incorporated with porous carbon particles. The method includes electrospinning a polymer solution to form a porous layer of polymeric fibers and the polymeric fibers are doped with a precursor of conductive metal particles, wherein the polymer solution includes a polymer and the precursor of the conductive metal particles, electrospraying a metal organic framework suspension onto the porous layer of polymeric fibers, wherein the metal organic framework suspension includes metal organic framework particles, repeating the electrospinning and electrospraying in an alternating manner to form a porous network of polymeric fibers incorporated with the metal organic framework particles, and heating the porous network of polymeric fibers incorporated with the metal organic framework particles to form the porous carbon composite fibrous mats. The porous carbon composite fibrous mats and its applications thereof are also disclosed herein.

A supercritical water oxidation vortex reactor has a reactor shell configured to contain a pressurized and heated material including water, a burner assembly configured to create a supercritical core region in the material in the reactor shell, the supercritical core region including water above its critical point, an injector assembly configured to inject into the enclosed volume a subcritical wash stream including water below its critical point and an aspirator arranged in the enclosed volume and configured to remove a processed flow including purified water from an upper portion of the supercritical core region. The supercritical water oxidation vortex reactor is configured with an upward helical flow to transfer precipitated ionic compounds out of the supercritical core region, through a transcritical intermediate region, and into the subcritical wash stream where they re-dissolve.

Disclosed is a method of treating a clinical analyser wastewater stream containing a first concentration of azide ions in solution, comprising at least the step of passing the clinical analyser wastewater stream through an anodic oxidation chamber having one or more anodic oxidation cells to provide a post-chamber treated water stream, said treated water stream having a second concentration of azide ions in solution that is less than the first concentration of azide ions in solution. A clinical analyser treatment apparatus comprising an anodic oxidation chamber having one or more anodic oxidation cells able to reduce a concentration of azide ions is also disclosed.

An enhanced coagulation method for removing microplastics in water is provided. First, a certain amount of inorganic suspended particles are added to microplastic wastewater to increase the number of particles and thereby improve a collision probability among the particles; and then a natural polymer flocculant and a polysilicic acid are added. The polysilicic acid is used as coagulant aid, so that the three materials can comprehensively achieve the purpose of removing the microplastics in the wastewater. The enhanced coagulation method can combine respective characteristics and advantages of the three materials, so that the three materials can mutually complement each other and give full play to the role of charge neutralization and bridging and net capturing, strengthen the sedimentation performance and enhance the actual microplastic removal effect. Therefore, it is a green and environmentally-friendly enhanced coagulation technology.

A bio-trickling filter box device capable of purifying organic wastewater and generating electricity is provided, which includes battery component(s) and a bio-trickling filter box component. The battery component(s) is provided in the bio-trickling filter box. The other end of each of trickling filter tube(s) is connected with a water tank. A water pump operates to make water flow through the trickling filter tube(s), pass through leakage holes and trickling holes, and drip into the battery component(s) in a water-drop manner, so as to supply an electric apparatus component with power. The bio-trickling filter box component(s) and the battery component(s) are combined, and the long-term impingement of water droplets on the battery component(s) can accumulate electric charge and generate the electricity. so as to provide power required by the electric apparatus component, which forms a biological treatment system that generates the power while treating the wastewater.