6results about How to "Help release" patented technology

The invention provides a soil conditioner for acidified soil remediation and a preparation method thereof, and belongs to the technical field of soil conditioners. The invention discloses a soil conditioner for acidified soil remediation. The soil conditioner is prepared from the following raw materials in parts by weight: 25-30 parts of decomposed organic matters, 15-23 parts of calcined alkaline slag powder, 20-30 parts of a biochar-based composite material, 6-13 parts of a microbial agent and 10-20 parts of a bio-based adhesive. According to the soil conditioner for acidified soil remediation, the unbalance state of acidified soil is improved, and the acidification process is relieved.

The application relates to the field of cement material preparation, and particularly discloses a preparation method of an early-strength carbon-reduction light aggregate cement-based material, which comprises the following steps: (1) mixing emulsified asphalt, a silane coupling agent and polyethylene glycol powder to form a coating agent. Then, the coating agent is added to volcanic light aggregate while stirring, and after mixing, recycled concrete powder is added to coat the surface of the aggregate. After solidification, the excess powder is removed through screening to obtain pretreated light aggregate. (2) After the pretreated light aggregate is sprayed with water and moistened, the light aggregate is placed in a sealed container, carbon dioxide is introduced, and heating and insulation are performed, so that the reprocessed light aggregate is obtained. (3) cement, sand fine aggregate, the pretreated light aggregate, an anti-shrinkage agent, glass powder and a water reducing agent are uniformly mixed as raw materials, and then water is added and uniformly stirred, so that the cement-based material is obtained. The cement-based material not only has good fluidity and early strength, but also can prevent mechanical strength deterioration caused by later drying shrinkage.

The present application relates to the field of freeze-dried preparations of leeches, and provides a freeze-dried powder containing multiple active enzymes and a preparation method thereof, to solve the problem that the prior art cannot simultaneously ensure the release of active ingredients and the maintenance of the stability of active ingredients, comprising the following steps: S100, cooling leeches to obtain freeze-dried leeches; S200, putting the freeze-dried leeches into a solution system, crushing, centrifuging, and taking the supernatant; the pH value of the solution system is 6.5-8.5; the solution system at least comprises water; the crushing speed is 150-250 r / min, and the time is 5-8 min; S300, after the supernatant is separated and purified, freeze-drying is performed to obtain the freeze-dried powder of leeches. The present application adopts a freeze-crushing process, and after freezing, not only can the crushing operation be simply realized, but also the loss of active ingredients caused by high temperature can be reduced by utilizing the crushing process at low temperature of raw materials.

The invention discloses a magnetic nanoparticle extraction method for efficiently separating and enriching various radionuclides in aquatic products, and belongs to the technical field of magnetic nanoparticle extraction.The magnetic nanoparticle extraction method comprises the following steps that 1, modified chitosan is added into a uranium-containing water sample, the modified chitosan and uranium ions in the water form sediment, the sediment is separated out through centrifugation, and the sediment is obtained; dissolving the precipitate with dilute nitric acid, and adjusting the pH value to 3-4; step 2, preparing nano-scale ion exchange resin, enabling the acidified solution to pass through a fluidized bed reactor filled with the nano-scale ion exchange resin, adsorbing uranium ions by nano-particles, and enabling other ions to pass through a fluidized bed; according to the invention, the magnetic nanoparticles are used as an adsorbent, rapid separation and enrichment of radionuclides are realized through an external magnetic field, and the separation efficiency is improved. And by adding the TBP derivative, the solubility of uranium in supercritical carbon dioxide is improved, uranium can be released from the nano ion exchange resin, and the recovery efficiency of uranium is improved.

A replaceable cartridge for use in an aerosol delivery system comprising an aerosol generator, the replaceable cartridge comprising: a housing comprising a cavity having a retention material for retaining a liquid aerosol-generating material; and a heater configured, in use, to heat the aerosol-generating material in the holding material to assist in release of the aerosol-generating material through the outlet in the housing.

An aerosol delivery subsystem comprising: a housing comprising a cavity for receiving an aerosol-generating material; and a pressure mechanism configured, in use, to displace the aerosol-generating material in the cavity to assist in release of the aerosol-generating material through the outlet in the housing.