4results about How to "Immobilization" patented technology

The invention provides an immobilized algae ball, a preparation method thereof and an immobilized algae ball and bacterium symbiotic system, and belongs to the technical field of sewage treatment, and the preparation method comprises the following steps: taking a chlorella culture solution, centrifuging to obtain concentrated chlorella, mixing the concentrated chlorella with deionized water to obtain an algae solution, preparing a sodium alginate solution at the same time, and adding the sodium alginate solution into the algae solution; uniformly mixing the algae solution with the sodium alginate solution to obtain a mixed solution; preparing a CaCl2 solution, slowly dropwise adding the mixed solution into the CaCl2 solution, carrying out immobilized cross-linking at room temperature for 23-25 hours, and washing with deionized water to obtain the algae balls. The algae balls are prepared by adopting a sodium alginate-calcium chloride embedding method, the concentration and crosslinking time of sodium alginate and calcium chloride are optimized, the immobilization of chlorella is realized, nitrogen and phosphorus in sewage can be effectively removed by the algae balls and a suspended sludge system, and the algae balls can be recycled after sewage treatment.

The application discloses a preparation method of a 3D-printed biomimetic self-suspending solar evaporator. The application takes acrylonitrile-butadiene-styrene copolymer (ABS) and thermoplastic polyurethane elastomer (TPU) as raw materials, and prepares ABS-TPU wires through a double-screw extruder and a single-screw extruder. Photothermal materials, carbon black (CB) or carbon nanotube (CNT), can be added to the ABS-TPU wires through blending. A multi-channel biomimetic self-suspending ACy and ACy / CB (CNT) solar evaporator is constructed by using a 3D printing technology. General immersion treatment is combined with spraying technology to coat and load polydopamine (PDA) and a photocatalyst on the 3D-printed biomimetic self-suspending solar evaporator, thereby obtaining a biomimetic self-suspending solar evaporator (ACy / PDA / photocatalyst or ACy / CB (CNT) / PDA / photocatalyst) solar evaporator which is excellent in hydrophilic performance, photothermal conversion performance and photocatalytic performance, and which can realize water purification while evaporating water.

The invention relates to the technical field of biological medicine, and provides an NH4 < + > biotransformation removal material and a preparation method thereof, glutamate dehydrogenase is adopted, NH4 < + > generated by decomposing urea by urease, alpha-ketoglutaric acid and nicotinamide adenine dinucleotide are converted into glutamic acid under the action of enzyme, so that NH4 < + > with high toxicity to human bodies is removed. Besides, zinc nitrate and 3-methyl-1, 2, 4-triazole react in an aqueous solution to synthesize an MAF-7 material, and glutamate dehydrogenase is added in the synthesis process, so that enzyme is loaded into MAF-7 in situ, and enzyme immobilization is realized. According to the material, efficient removal of a peritoneal dialysis liquid regeneration byproduct NH4 < + > in WAK can be achieved, long-time continuous removal of NH4 < + > can be achieved, the dosage of an adsorbent and the volume and weight of a device are reduced, the treatment efficiency of urea is further improved, and the risk that Na < + > and H < + > seep out of an REDY system is solved.

The utility model relates to oxidation equipment technical field, the utility model provides a double -effect catalytic oxidation device, it includes the material pipeline, injects the pipe for injecting the reagent to the material pipeline, mixes the axle one end rotation setting on the lateral wall of material pipeline, can mix reagent and water through rotation, the box has the processing cavity with the material pipeline intercommunication, the board piece sets up on the lateral wall of box, and the board piece surface has titanium dioxide coating, the sleeve sets up on the lateral wall of box, the ultraviolet lamp tube sets up in the pipe cavity, is used for the illumination titanium dioxide coating on the board piece surface and mixed reagent and water. The titanium dioxide coating on the board piece surface is excited to produce electron -hole pair under the ultraviolet lamp tube illumination, and electron is captured to generate super oxygen free radical by O2, and the hole can directly oxidize organic matter or react with water to generate hydroxyl radical, simultaneously, titanium dioxide can also be used as catalyst to realize the efficient activation of H2O2, and continuously generate free radical. The problem that traditional catalyst is easy to pollute, deactivation has been solved.