2results about How to "Does not affect reactivity" patented technology

This utility model relates to a combined integrated wastewater deep treatment equipment, comprising: an anaerobic tank, effluent from the anaerobic tank being connected to an anoxic tank, effluent from the anoxic tank being connected to an aerobic tank, a suspended sedimentation separation structure within the aerobic tank, an aeration device below the sedimentation separation structure within the aerobic tank, supernatant from the sedimentation separation structure being connected to a vertical flow sedimentation tank, supernatant from the vertical flow sedimentation tank being connected to a gradient filtration device, and effluent from the gradient filtration device being connected to a clear water tank. The beneficial effects are: the proportion and sequence of anaerobic, anoxic, and aerobic processes can be adjusted according to different usage scenarios; the process is arranged in the order of anaerobic, anoxic, and aerobic, mainly for simultaneous nitrogen and phosphorus removal; the biological treatment zone consists of anaerobic + anoxic + aerobic; and the sedimentation zone and gradient filtration are connected in series at the end of the biological treatment zone, highly integrating biological and deep treatment processes, resulting in equipment with high treatment efficiency, high flexibility, strong adaptability, low operation and maintenance difficulty, and low operating energy consumption.

The application belongs to the technical field of sodium ion batteries, and relates to a sodium ion battery positive electrode sheet coated with a NaCrO2 sodium supplementing substrate and a preparation method thereof. The NaCrO2 material, the conductive agent, the dispersing agent and the solvent are premixed according to a certain weight ratio, and the temperature and the rotating speed are controlled in the process; then sand milling is performed, the temperature is controlled, and the D50 reaches the particle size requirement, and then the sodium supplementing substrate sheet is coated on an aluminum foil, and after drying, the sodium supplementing substrate sheet is obtained; the uniformly grinded positive electrode slurry is coated on the sodium supplementing substrate sheet, and after drying and rolling, the sodium supplementing positive electrode sheet is prepared. The method has a simple process, guarantees the battery processing and the conductivity, maximally develops the performance of the sodium supplementing agent, and has industrialization advantages. The prepared positive electrode sheet can improve the first charge irreversible sodium loss, has excellent electrical performance, and the process and operation are easy to be industrialized and mass produced.