6results about How to "High adsorption activity" patented technology

This invention discloses a polyphosphazene / MXene self-supporting electrode loaded with cobalt single atoms, its preparation method, and its application, belonging to the field of seawater uranium extraction technology. Ti3AlC2 powder is etched in an HCl-LiF mixed solution and then ultrasonically exfoliated to obtain Ti3C2T. x Nanosheet suspension; simultaneously, hexachlorocyclotriphosphazene, 4,4'-dihydroxydiphenyl sulfone, and cobalt salt were dissolved in a solvent, and triethylamine was added. A condensation reaction was then carried out under ultrasonication to obtain Co-PZS; then Ti3C2T x After the nanosheet suspension is uniformly mixed with Co-PZS and carbon fiber fabric, it is transferred to a hydrothermal reactor for hydrothermal reaction. The resulting hydrothermal reaction product is then dried and calcined to obtain a polyphosphazene / MXene self-supporting electrode loaded with cobalt single atoms. This electrode is used for the electrochemical adsorption of uranyl ions in the solution system and exhibits excellent comprehensive uranium extraction performance, with advantages such as high capacity, fast rate, strong selectivity, and good stability, meeting the application requirements of seawater uranium extraction.

This invention discloses an industrial production method for cement clinker that co-processes heavy metal-containing waste, comprising: raw meal preparation: raw meal is prepared according to the following proportions by weight: 84-87 wt% calcareous raw materials, 6.0-7.2 wt% clayey raw materials, 4.8-5.8 wt% corrective raw materials, and 2.0-4.5 wt% heavy metal-containing waste; addition of composite synergist: a heavy metal adsorption-mineralization composite synergist is added to the raw meal; pre-decomposition: the homogenized raw meal is preheated by a multi-stage cyclone preheater and then enters a decomposition furnace for carbonate decomposition; clinker calcination: the decomposed raw meal enters a rotary kiln and is calcined at 1350-1450℃ to form clinker; and rapid cooling of clinker: the calcined clinker is rapidly cooled to room temperature by a grate cooler to obtain finished cement clinker. This invention can achieve a total solidification rate of heavy metals in clinker of 93%, and increase the retention of Pb, Cd and Zn by 13.9 times, 59.1% and 11.5% respectively, and increase the 28-day compressive strength to 61.8 MPa.

The present application relates to the technical field of phosphate ore dressing, and particularly relates to a continuous positive and reverse flotation method for medium and low grade phosphate ore. The preliminary separation of phosphate ore and gangue ore is realized through 'two-stage crushing-gradient magnetic separation-cyclone classification', then the tailings of magnetic separation and coarse-grained phosphate ore are re-ground by a tower mill, and then 'positive flotation-reverse flotation-reverse flotation again' is carried out on the coarse phosphate ore based on a micro-bubble flotation column. In the positive flotation stage, combined depressants are used to efficiently depress gangue minerals such as quartz and dolomite, in the reverse flotation I stage, carbonates are deeply removed, in the reverse flotation II stage, an activator is introduced to improve the adsorption activity of silicate impurities, and silicate minerals are deeply removed, so that the efficient flotation of medium and low grade phosphate ore is realized. The flotation method provided by the present application effectively improves the flotation efficiency of medium and low grade phosphate ore, improves the quality and recovery rate of the concentrate, and achieves good flotation effect.

The utility model discloses an organic waste gas purification activated carbon adsorption device, the utility model relates to waste gas treatment technical field. Including the purification shell, still including the filter component, the outer wall of filter component is inserted with the inner wall of purification shell, the inner wall fixed connection of purification shell has the removal component, the filter component includes the installation shell, the inner wall fixed connection of installation shell has the honeycomb shell, this adsorption device passes through the honeycomb of honeycomb shell unique in filter component The structure has very big specific surface area, so that the activated carbon particle filled in the inside can be fully exposed in the waste gas, and the microporous structure of activated carbon is rich and has strong adsorption force to organic molecules, when waste gas passes through the filter hole of honeycomb shell and enters the inside, and fully contacts activated carbon particle, and the adsorption device reaches the purpose of organic waste gas purification activated carbon adsorption device.

The invention discloses a ferrous silicate catalytic material as well as a preparation method and application thereof, and belongs to the technical field of catalytic materials. The preparation method comprises the following steps: slowly adding a sodium silicate solution into a ferrous sulfate solution at a constant speed, stirring and reacting under a proper pH condition, filtering, washing and drying a reaction product to obtain the ferrous silicate catalytic material, and the obtained ferrous silicate catalytic material has the characteristics of an amorphous crystal phase structure, nano-particle morphology and positive charge on the surface. The adsorbent not only has high adsorption activity on anionic organic pollutants, but also can catalyze peroxides to oxidize and degrade the organic pollutants, so that the degradation rate of the organic pollutants is improved.

The invention discloses an assembly type composite artificial wetland system and method in the technical field of water treatment. The assembly type composite artificial wetland system comprises a main body frame, a subsurface flow wetland module, an upstream flow deep bed composite biological filter and an integrated process intelligent water distribution system, the main body frame comprises a supporting structure, a grating and a bottom supporting structure, and the grating divides the interior of the main body frame into an upper layer and a lower layer; the subsurface flow wetland module and the upstream flow deep bed composite biological filter are respectively arranged on the upper layer and the lower layer of the main body frame; the upstream deep-bed composite biological filter forms a multi-stage hierarchical structure along the water inlet direction; the integrated process intelligent water distribution system is located in the main body frame; the main body frame adopts a structural ecological design, and compared with a traditional concrete / reinforced concrete pool body structure, the energy consumption in the building construction process is lower; the treatment system adopts novel environment-friendly functional materials, and is suitable for ecological restoration of river / landscape water, upgrading and recycling of municipal tail water, recycling of aquaculture wastewater and treatment of agricultural non-point source pollution.