5results about How to "Improve oxidation effect" patented technology

The application discloses a kind of quick determination methods of niobium content in Baiyunebo niobium-containing mineral, because of the scarcity of Baiyunebo niobium-containing mineral standard sample, considering the pertinence of detection method to Baiyunebo niobium-containing mineral and the coverage of standard curve linearity, accurately weigh a certain mass of existing standard sample, mixed into mixed standard sample, to obtain the required content standard sample, the mixed standard sample is obtained by accurately weighing two standard samples with known content, and is fully mixed on a speed-adjusting oscillator;And the calculation formula of the content of mixed standard sample is summarized, which can be used for the calculation of other mixed standard sample content.This application compared with prior art, solves the particle size effect and mineral effect caused by tabletting analysis, can effectively improve the analysis speed of niobium content in Baiyunebo niobium-containing mineral, improve the accuracy of analysis data, with the characteristics of simple operation, practical, reasonable determination method provides reliable technical support for beneficiation and metallurgy.

This invention relates to the field of water treatment technology, and more particularly to a method and system for treating coking nanofiltration concentrate. The method includes: pre-configuring a modified nickel plate anode electrode, a modified titanium plate cathode electrode, and multi-media filter media according to the water quality characteristics of the coking nanofiltration concentrate; feeding the coking nanofiltration concentrate into an electrocatalytic oxidation device for treatment, wherein the electrocatalytic oxidation device uses the modified nickel plate anode electrode as the anode electrode and the modified titanium plate cathode electrode as the cathode electrode; and pumping the effluent from the electrocatalytic oxidation device into a multi-media filter for filtration, wherein the multi-media filter contains multi-media filter media. By first subjecting the coking nanofiltration concentrate to electrocatalytic oxidation treatment, Cl... ‑ The anode loses electrons and is oxidized, producing a large number of active chlorine and other free radicals, which can rapidly degrade ammonia nitrogen. This allows relatively stable substances to react, and then a multi-media filter is used for filtration, which can economically and efficiently remove COD and ammonia nitrogen from coking nanofiltration concentrate.

The application discloses a method for one-step extraction of bleached cellulose from cow dung, and belongs to the technical field of cow dung-based paper pulp preparation. The one-step extraction method comprises the following steps: water washing is performed to remove excrement and impurities in the cow dung, thereby obtaining undigested plant fibers; the plant fibers are subjected to defatting and dewaxing; then, the plant fibers are added into a hydrogen peroxide solution containing activated carbon catalyst loaded with LaFeO3 perovskite for reaction, thereby obtaining cellulose. The application uses cow dung as raw material, attacks aromatic rings and ether bonds of lignin and glycosidic bonds of hemicellulose by using hydrogen peroxide, and additionally uses activated carbon catalyst loaded with perovskite to catalyze hydrogen peroxide, thereby enhancing the oxidation effect, and realizing the pulping and bleaching integrated technology by using cow dung as raw material. In the wastewater treatment stage, the wastewater generated by the one-step extraction and bleaching method only needs to be simply heated to be treated into normal water, and does not contain additional acid and alkali liquid, and the catalyst can be recycled and reused.

The application discloses a method for preparing pyromellitic acid by oxidizing liquid durene. The method comprises the following steps: taking a transition metal ion as a catalyst, taking hydrogen peroxide as an auxiliary oxidant, taking a gas containing O2 as an oxidant, and carrying out an oxidation reaction on durene to obtain pyromellitic acid. The method has the advantages of weak corrosion of the reaction liquid, easy treatment of waste liquid and high yield of pyromellitic acid.

The utility model discloses a kind of leachate decoloring device of garbage transfer station, including buffer water tank and ozone generator, the buffer water tank is connected by pipeline to lift pump, the output end of the lift pump is fixedly connected membrane contact reactor, the ozone generator is connected by pipeline to membrane contact reactor, one end of the ozone tail gas discharged by membrane contact reactor is connected by pipeline to tail gas breaker;Membrane contact reactor is used as gas-liquid reaction carrier, so that ozone utilization efficiency is close to 100%, oxidation effect is good, while reducing operating cost;Membrane contact reactor can reduce the land area and height of ozone oxidation device, facilitate intensive arrangement.