5results about How to "Deep degradation" patented technology

This invention relates to the field of industrial wastewater treatment technology, and discloses an electrocatalytic oxidation device and its operating method for treating saline industrial organic wastewater. Wastewater enters the reaction chamber through the bottom inlet, is forced through the anode channels, and undergoes an electrochemical oxidation reaction on the anode surface to convert chloride ions into hypochlorous acid. A vacuum ultraviolet light source performs in-situ photolysis of water molecules and hypochlorous acid, exciting various active species, including strongly reducing hydrated electrons, strongly oxidizing hydroxyl radicals, and chloride radicals. This device, through the construction of a reduction-oxidation system, can efficiently degrade various pollutants with both electron-rich and electron-deficient characteristics. This invention utilizes the synergistic coupling of electrochemical generation and photochemical conversion to convert high-concentration chloride ions into active precursors, effectively overcoming the bottlenecks of low degradation efficiency and poor selectivity in traditional technologies for high-salt and complex water quality, and significantly improving the system's mineralization efficiency and energy utilization rate.

The utility model discloses an electrochemical device for degrading sulfur hexafluoride waste gas, which comprises an electrolytic tank, two washing components, a cathode region, an anode region and a cation exchange membrane for separating the cathode region and the anode region, a cathode is arranged in the cathode region, an anode is arranged in the anode region, and a cathode is arranged in the anode region. The cathode and the anode are electrically connected with a negative electrode and a positive electrode of a direct-current power supply respectively; the washing assembly comprises washing columns and a spraying assembly, the two washing columns are communicated with the cathode area and the anode area respectively, the washing column of the cathode area is communicated with the anode area through a gas pipeline, and the spraying assembly is connected with the washing columns and the cathode area or the anode area. And the spraying assembly is used for extracting electrolyte and spraying the electrolyte into the washing column. The device can be used for carrying out countercurrent washing on dissipated or incompletely degraded SF6 and other intermediate gas products, so that deep degradation of SF6 is realized.

This invention discloses a composite microbial preparation for solid fecal degradation, its preparation method, and its application, belonging to the field of microbial preparation technology. The composite microbial preparation comprises a composite microbial agent and an exogenous composite enzyme preparation; the composite microbial agent includes laccase-producing bacteria, keratinase-producing bacteria, auxiliary degradation bacteria, and composite probiotics; the exogenous composite enzyme preparation includes cellulase, neutral protease, and xylanase. This invention employs a mixed strategy of "exogenous enzyme + enzyme-producing bacteria," rapidly decomposing cellulose, protein, and hemicellulose in the initial stage of composting by adding exogenous cellulase, protease, and xylanase, providing readily available carbon and nitrogen sources for the microorganisms, shortening the composting start-up time to less than 24 hours; simultaneously, the laccase-producing bacteria and keratinase-producing bacteria continuously produce laccase and keratinase during composting, achieving deep degradation of lignin and keratin. This invention has advantages such as rapid start-up, continuous degradation, good deodorization effect, high nitrogen retention rate, and low cost, and has good prospects for industrial application.

The invention belongs to the technical field of carbon-based catalytic materials, and discloses polyaniline graphene (PANI / RGOT) aerogel for catalytically degrading new pollutants in water and a preparation method of the PANI / RGOT aerogel. The preparation method comprises the following steps: firstly, synthesizing a PANI / RGO original material by adopting a freezing interface polymerization method; after washing, performing ultrasonic treatment to uniformly disperse in water; carrying out hydrothermal synthesis on the dispersion liquid to obtain PANI / RGO aerogel, and freeze-drying the PANI / RGO aerogel; and carrying out high-temperature modification on the dried PANI / RGO aerogel to obtain the target product PANI / RGOT. The preparation operation is simple, the preparation condition is mild, the prepared aerogel material has the hexagonal honeycomb lattice layered structure of RGO and the high conductivity of PANI, the effect of persulfate for generating active oxygen is enhanced, bisphenol A can be effectively degraded, deep degradation of bisphenol A is achieved, recycling can be achieved, environment friendliness is achieved, secondary pollution is avoided, and the aerogel material is suitable for industrial production. Extra energy does not need to be consumed, and the method has wide practical application prospects.

The invention discloses a microbial electrochemical device for advanced treatment of organic wastewater and synchronous energy grading recovery, and relates to the field of microbial electrochemistry of wastewater treatment, the device comprises a chemical cathode, a first biological anode, a second biological anode, a biological cathode, a first diaphragm, a second diaphragm, a reaction space and an aeration device; the reaction space into which wastewater is introduced is divided into a first biological anode chamber, a second biological anode chamber and a biological cathode chamber by the two diaphragms; the wastewater in the first biological anode chamber permeates into the second biological anode chamber and permeates into the biological cathode chamber; the chemical cathode and the first biological anode are arranged in the first biological anode chamber; the second biological anode is arranged in the second biological anode chamber; the biological cathode and the aeration device are arranged in the biological cathode chamber; the aeration device is used for aerating the biological cathode chamber; the chemical cathode and the first biological anode as well as the second biological anode and the biological cathode form two closed loops; two times of energy recovery are carried out through two closed loops. According to the invention, the energy conversion and recovery efficiency is improved.