4results about How to "Increase electrostatic attraction" patented technology

This application relates to the field of nozzle technology and discloses a high-uniformity electrostatic misting nozzle structure, including a nozzle body with a liquid inlet at one end and a mist outlet at the other end. The nozzle body has an internal mounting cavity for mounting an atomizing component. The atomizing component includes a pressure atomizing nozzle and a rotating atomizing disc. The pressure atomizing nozzle is installed at the liquid inlet of the nozzle body, and the rotating atomizing disc is rotatably connected to the inner wall of the nozzle body via a mounting ring, and is opposite to the liquid outlet direction of the pressure atomizing nozzle. The rotating atomizing disc is driven to rotate by a drive mechanism outside the nozzle body. In this invention, the electrostatic generating component charges the droplets, enhancing the electrostatic adsorption force between the droplets and the surface of plants or sprayed objects. Compared to traditional nozzles, the droplets adhere more firmly, reducing waste caused by drifting and slippage, improving the utilization rate of pesticides, coatings, and other materials, reducing costs, and reducing environmental pollution.

This invention relates to the field of wastewater treatment technology, and more particularly to a method for enhancing anaerobic ammonia oxidation (AAO) denitrification using iron-loaded polyurethane porous materials. The method includes the following steps: Anaerobic ammonia oxidation sludge, iron-loaded polyurethane porous materials, and wastewater containing ammonia nitrogen and nitrite nitrogen are thoroughly mixed in an anaerobic reactor and reacted under anaerobic conditions at a temperature of 31-35°C. The iron-loaded polyurethane porous materials are prepared as follows: polyurethane sponge is selected as a carrier, cut and cleaned, and then immersed and stirred in a mixed iron salt solution for a period of time. The pH of the mixed solution is adjusted to alkaline, resulting in the formation of a red precipitate. The iron-loaded polyurethane porous materials are then hydrothermally synthesized. The mixed iron salt solution includes ferric chloride and ferric nitrate. The carrier material prepared by this invention, when applied to an anaerobic ammonia oxidation system, can effectively shorten the process start-up time, promote the enrichment and biofilm formation of anaerobic ammonia oxidizing bacteria, and achieve a high total nitrogen removal rate.

This invention belongs to the field of PVC membrane technology, specifically relating to a water-permeable transparent PVC electrostatic membrane and its preparation method. The water-permeable transparent PVC electrostatic membrane provided by this invention comprises PVC resin powder, a composite plasticizer, a water-resistant modifier, an electrostatic reinforcing agent, a composite stabilizer, a transparent modifier, a filler, an anti-migration agent, and stearate. This invention uses waterborne polyurethane and γ-methacryloyloxypropyltrimethoxysilane as a crosslinking compound as a water-resistant modifier, effectively improving the water resistance of the PVC electrostatic membrane; it uses diallylamine and epichlorohydrin to prepare a heteroazacyclobutane structure, which is then copolymerized with allyltrimethylammonium chloride to obtain an electrostatic reinforcing agent, improving the electrostatic adsorption force of the PVC electrostatic membrane; it uses a calcium-zinc composite stabilizer and phosphite to form a composite stabilizer, and uses polypropylene adipate and erucamide to form an anti-migration agent, effectively improving the temperature resistance and stability of the PVC electrostatic membrane.

A biomimetic silicification-enhanced catalyst and its preparation method are disclosed. The preparation method includes the following steps: S1: Urea, iron salt, and copper salt are added to a first solvent to obtain a mixed solution; S2: The mixed solution undergoes a hydrothermal reflux reaction to obtain particle units; S3: The particle units undergo a silicification reaction with ammonia and a silica precursor to obtain a catalyst. The catalyst prepared by this method can not only reduce its band gap by copper doping to utilize visible light as a reaction light source and reduce reaction conditions, but also inhibit the aggregation of catalyst particles by utilizing the mesoporous silica layer on the surface, expose more reaction sites, and limit the heat loss of the internal particle units, thereby increasing the reaction temperature. This can effectively improve the organic matter treatment effect of the catalyst. It adsorbs and degrades dyes in wastewater through two modes: electrostatic attraction and catalytic decomposition of hydrogen peroxide to generate strong oxidizing free radicals.