12results about How to "Improve oxidation efficiency" patented technology

The utility model belongs to industrial wastewater treatment technical field discloses a kind of Fenton oxidation pond packing shelf and Fenton reaction pond device, including packing shelf body and at least two hanging material layers, and packing shelf body includes upper shelf body and lower shelf body, and both are detachably connected along vertical direction, and upper shelf body top is provided with lifting connection structure;At least two hanging material layers are respectively arranged on upper shelf body and lower shelf body, and each layer hanging material layer includes multiple hanging material cross beams that are arranged in parallel along horizontal interval, and multiple filter bags are detachably and interval hung along the length direction of each hanging material cross beam, and filter bag interior is filled with zero-valent iron reagent, and raw water in oxidation pond can contact reaction with zero-valent iron reagent in its interior through the small hole of filter bag.The utility model effectively improves the contact efficiency of reaction reagent, reduces ferrous sulfate consumption, makes reaction process more sufficient, accelerates reaction rate, improves treatment effect;Meanwhile, it is convenient to quickly replace and supplement reaction reagent on packing shelf, and operation is simple.

The invention relates to the technical field of oil and gas fracturing flow-back fluid treatment, and particularly discloses a boron-doped diamond electrode electrooxidation system and method for treating fracturing flow-back fluid. According to the method for treating the fracturing flow-back fluid, before the fracturing flow-back fluid enters an electrooxidation unit, sulfide is efficiently removed, poison and competitive oxidation of the fracturing flow-back fluid to an electrode are eliminated, a BDD electrode is protected, a foaming agent is synchronously removed through aeration enrichment, the problem of foam interference in the flow-back fluid treatment process is fundamentally solved, and continuous and stable operation of a system is guaranteed; after the electro-oxidation unit, active chlorine (pypocholoride / chlorine) is effectively removed and recycled, so that waste is treated by waste, the oxidation efficiency is improved, and the dosage of chemicals is reduced. Through the collaborative design, the interference and foam problems of sulfide with high chloride ion content and strong reducibility are collaboratively optimized, and the treatment efficiency, economical efficiency and stability of the system are integrally improved.

The utility model provides a kind of micro-nano ozone oxidation wastewater treatment device, it is related to wastewater treatment technical field, including cabinet, the two sides inner wall of cabinet are uniformly connected with two trapezoidal long plate, the top inner wall of cabinet and the bottom of trapezoidal long plate are equally spaced and installed with ultraviolet lamp, the two side walls of cabinet and located above trapezoidal long plate are all equipped with square hole, the side wall of cabinet and located at square hole are all fixedly connected with ring plate.The utility model in the present application, liquid pump drives wastewater circulation, reciprocating flow in cabinet by liquid suction pipe and liquid outlet pipe, cooperate trapezoidal long plate guide, wastewater spreads on the plate and flows, ultraviolet lamp irradiates from top, plate bottom multidimensional, covers deep layer wastewater, oxidation of refractory substance is more thorough, reflector enhances ultraviolet reflection, driving motor, fan blade accelerates gas-liquid exchange, ozone and wastewater are fully integrated, micro-nano bubble expands reaction interface, improves oxidation efficiency, and COD / TOC removal rate is significantly improved.

The utility model relates to the technical field of aeration devices, and provides an oxidation aeration device which comprises a box body and a stirring structure, a water inlet pipe is fixed on one side of the top end of the box body, a water outlet pipe is fixed on one side of the bottom of the box body, an aeration structure is arranged at the bottom end in the box body, and a stirring structure is fixed on the top end of the box body. The stirring structure is arranged, a motor is started to drive a rotating pipe to enable a connecting pipe to rotate so as to stir liquid in the box body, meanwhile, oxygen is conveyed into the rotating pipe and the connecting pipe through a second air conveying pipe, and then the oxygen is output outwards through an air outlet hole; furthermore, liquid and oxygen are fully mixed in the stirring process, bubbles are prevented from floating too fast, the gas retention time is further prolonged, and the oxidation efficiency is improved.

The invention discloses a desulfurization ash resource utilization process which comprises the following steps: performing magnetic separation on desulfurization ash, and mixing with water to obtain first desulfurization ash slurry; adding a mixed solution of sodium acetate and hydrochloric acid, reacting to obtain second desulfurized fly ash slurry with acidic pH, and collecting CO2 generated in the reaction process; introducing air to oxidize the second desulfurized fly ash slurry at the temperature of 60-80 DEG C, and stirring to react to obtain third desulfurized fly ash slurry; performing solid-liquid separation on the third desulfurized fly ash slurry to obtain solid calcium sulfate and a mixed solution of calcium acetate and sodium chloride; adding sodium carbonate into the mixed solution of calcium acetate and sodium chloride, and performing solid-liquid separation after reaction to obtain solid calcium carbonate and the mixed solution of calcium acetate and sodium chloride; a mixed solution of calcium acetate and sodium chloride is collected and circularly used for preparing the first desulfurized fly ash slurry. According to the method, the resource utilization process of the desulfurized fly ash is optimized, generation of harmful gases such as sulfur dioxide and ammonia gas is avoided, and valuable calcium sulfate and calcium carbonate products are obtained.

The utility model relates to a kind of multi-directional fixed oxidation hanger in the technical field of oxidation hanger, comprising: installation top plate, its top end is symmetrically provided with threaded mounting hole;Fixed through-hole, it is symmetrically provided in the top end edge of the installation top plate;Connecting installation top block, it is by bolt in the top end middle part of the installation top plate;Electric telescopic rod, it is fixed in the top end of the connecting installation top block;Connecting hanger mechanism, it is movably inserted in the inboard of the fixed through-hole;Fixed reinforcing mechanism, it is by bolt in the top of the installation top plate, by the mutual cooperation between the installation top plate, fixed through-hole and connecting hanger mechanism being provided, can be connected and assembled between installation top plate and connecting hanger mechanism in actual use process, can be connected between installation top plate in multidirection, can be mounted to multiple workpieces, improve the oxidation efficiency of overall, it is convenient and fast to operate.

The application discloses a treatment system for treating strongly complexed heavy metal wastewater in an electroplating industry, comprising an oxidation reaction tank, a Fenton-like reaction tank, a homogenizing adjusting tank, a chemical mixing tank, a No. I flocculation tank, a No. I sedimentation tank, a heavy metal adsorption tank, a No. II flocculation tank, a No. II sedimentation tank and a clean water tank which are connected in sequence; wherein, the bottom of the No. II sedimentation tank is provided with two sludge discharge ports, one of which is connected with the heavy metal adsorption tank through a sludge backflow pipeline, and the other is connected with a regeneration system. The application also discloses a method for treating strongly complexed heavy metal wastewater in the electroplating industry based on the treatment system. The method adopts the process of first oxidizing and breaking the complex, then adding alkali to precipitate, and finally modifying zeolite to adsorb, so that the electroplating strongly complexed heavy metal wastewater can be treated, the concentration of heavy metal ions in the effluent can be stably reduced to below 0.1 mg / L, and the discharge standard can be reached.

The application belongs to the technical field of chemical foils, and particularly relates to a preparation method of a chemical foil for an aluminum electrolytic capacitor, comprising the following steps: S1, pretreatment: placing an etched aluminum foil in a hydrazine hydrate solution, and performing a pretreatment reaction under the action of ultrasonic waves to obtain a pretreated aluminum foil; and S2, performing multi-stage anodic oxidation and chemical formation and post-treatment on the pretreated etched aluminum foil to obtain a chemical foil. The preparation method can reduce the chemical formation energy consumption while improving the electrical performance of the chemical foil.

The application discloses a diesel oxidation catalyst for reducing N2O emission and a preparation method thereof. First and second catalytic coating layers of the catalyst are continuously coated on a carrier in sections, a third catalytic coating layer is located on the upper layer of the first catalytic coating layer, and a fourth catalytic coating layer is located on the upper layer of the second catalytic coating layer. The first and second catalytic coating layers are used for purifying HC / CO pollutants and oxidizing NOx into NO2. The third noble metal active component of the third catalytic coating layer is composed of Pt or a mixture of Pt and Pd, and the ratio of Pt / Pd is 5:1-1:0. The fourth noble metal active component of the fourth catalytic coating layer is one or more of Pt, Pd, Rh and Ru. The third catalytic coating layer is used for reducing the selectivity of the DOC catalyst to N2O when oxidizing NH3 and the selectivity to N2O when the HC-SCR reaction is performed. The fourth catalytic coating layer adopts a coating layer with N2O decomposition capacity, and the N2O selectively generated in the upstream section is decomposed into N2. The catalyst coating layers are mutually cooperative, have basic DOC catalytic performance, and can reduce N2O emission.

The invention discloses an integrated device and method for removing hardness and COD (Chemical Oxygen Demand) of high-salt-content wastewater, and solves the problems of high construction cost, large occupied area, multiple control points and poor water quality fluctuation adaptability in the existing high-salt-content wastewater softening treatment process. The upper end of the outer bin body is open, and the two first water pumps are arranged outside the outer bin body; two parallel vertical partition plates are arranged in the outer bin body and divide the interior of the outer bin body into three parallel areas, namely a first area located in the middle and two second areas located on the two sides of the first area respectively. A biochemical component is arranged in the first area and is used for removing COD (Chemical Oxygen Demand), ammonia nitrogen, total phosphorus and suspended matters in the to-be-treated high-salinity wastewater; a softening assembly and an oxidizing assembly are arranged in the second area; the softening assembly is used for removing the hardness of calcium and magnesium in the to-be-treated high-salt-content wastewater; and the oxidation assembly is used for removing COD in the to-be-treated high-salt wastewater again.

The invention relates to the technical field of flue gas treatment, and discloses a desulfurization and denitrification integrated absorption tower and a using method thereof.The interior of a tower body of the absorption tower is sequentially provided with a desulfurization absorption area, a gas oxidation area and a denitrification absorption area from bottom to top, and the desulfurization absorption area is provided with a desulfurization absorption liquid pool and a desulfurization absorption liquid spraying device; the gas oxidation zone is provided with an oxidant injection grid for injecting ozone, and a plurality of nozzles with downward injection directions are uniformly arranged on the oxidant injection grid; the denitration absorption area is provided with a denitration absorption liquid pool and a denitration absorption liquid spraying device, a first demister is arranged between the desulfurization absorption area and the gas oxidation area, and an isolation structure used for preventing denitration absorption liquid from being sprayed downwards to the gas oxidation area is arranged between the gas oxidation area and the denitration absorption area. Occupied space is small, treatment cost is low, and operation is safe and stable.

The utility model provides a kind of gold concentrate pressure oxidation test equipment, it belongs to gold concentrate oxidation test technical field, it includes fixed shell and fixed cover, the top bolt connection of fixed shell has fixed cover, the top fixed connection of fixed cover has feeding hopper, the top of fixed cover is connected with inlet tube and is passed through. The utility model adds pressure detector, storage bottle, gas duct, manual throttle valve, pressure relief head and third electric throttle valve by fixed shell, pressure detector detects the pressure inside fixed shell, when manual throttle valve opens, inert gas inside gas cylinder is transported to the inside of fixed shell via gas duct, so that the pressure inside fixed shell is improved, when the pressure inside fixed shell is too large, electric energy can be transported to the inside of third electric throttle valve via external control component, at this time, third electric throttle valve opens driving pressure relief head to be communicated, and then auxiliary staff can check the oxidation effect of gold concentrate under different conditions.