4results about How to "Good desalination effect" patented technology

A long-lasting antifouling polyamide reverse osmosis membrane, its preparation method, and its applications are disclosed, belonging to the field of membrane separation technology. The membrane comprises a porous support layer and a polyamide selective layer on its surface. The polyamide selective layer is covalently grafted with monoamine-terminated hyperbranched polyglycerol. The monoamine-terminated hyperbranched polyglycerol is grafted into the polyamide network through the reaction of its terminal primary amine groups with acyl chloride monomers during interfacial polymerization. This enriches the multi-hydroxyl branched structure of the hyperbranched polyglycerol on the membrane surface, forming a stable hydrophilic antifouling structure. The aforementioned long-lasting antifouling polyamide reverse osmosis membrane, its preparation method, and its applications result in a membrane with long-lasting and stable antifouling performance, strong hydrophilicity, and a simple preparation process, making it easy to industrialize.

The invention relates to the field of capacitance desalination, and discloses a desalination material containing ruthenium and titanium as well as a preparation method and application thereof. The method comprises the following steps: S1, carrying out anodic oxidation treatment on a titanium sheet to obtain a titanium dioxide nanotube array; s2, performing electrochemical deposition on the titanium dioxide nanotube array by using a Ru-containing deposition solution to obtain a Ru-loaded titanium dioxide nanotube array; and S3, calcining the titanium dioxide nanotube array loaded with the Ru. The preparation method is simple and efficient, and the prepared electrode material has a large specific surface area, good conductivity and high ruthenium loading capacity, shows good desalting performance in the desalting process, still keeps good desalting capacity after multiple desalting-desorption processes, has stable chemical performance, and can be applied to the field of electrochemical devices. The method has important significance in the actual production process.

The invention relates to a preparation method of a chlorine-resistant nanofiltration membrane and the chlorine-resistant nanofiltration membrane prepared by the preparation method. The method comprises the following steps: preparing a base film; the base membrane is sequentially contacted with an aqueous phase solution containing amine monomers and an organic phase solution containing acyl chloride monomers, the amine monomers comprise piperazine substances and pyrimidine substances with more than two amino groups, and the acyl chloride monomers comprise acyl chloride monomers with more than three acyl chloride groups; placing the base membrane after contact in an environment with a temperature of 10-30 DEG C, and spraying an aqueous solution containing a dialdehyde cross-linking agent; treating in an environment at the temperature of 40-80 DEG C; and post-processing. The method is low in production cost, high in production efficiency and simple and easy to operate, existing equipment does not need to be modified, and the chlorine-resistant nanofiltration membrane prepared from the method is low in use cost, easy to maintain, excellent in desalination performance, permeability and chlorine resistance and excellent in performance stability under long-term operation.

The utility model relates to the field of vegetable processing, concretely relates to a desalination device for pickled vegetable production, including desalination pool, the lower extreme of desalination pool is provided with drainage valve, the outside of desalination pool is provided with elevating stand, and elevating stand rotationally connects with door type frame, and the horizontal setting of door type frame is rotationally provided with net cylinder, and the both ends of net cylinder are conical and are provided with feeding pipe and discharge pipe respectively, and door type frame is provided with the drive mechanism connected with net cylinder, and the inside lower extreme of desalination pool is provided with multiple high -pressure air -jet pipes with the opening upwards, and high -pressure air -jet pipe all is provided with check valve, and the outside of desalination pool is provided with the gas pipe connected with high -pressure air -jet pipe all, and gas pipe is connected with high -pressure gas supply mechanism. The utility model has the advantages of uniform desalination, and the good desalination effect.