11results about How to "Efficient governance" patented technology

The invention provides a device for simulating the vertical migration rule of oil and gas field ground pollutants and a simulation method, and relates to the technical field, the device comprises a soil column leaching module, a spraying module and an underground water control module, the soil column leaching module and the underground water control module are both arranged in an underground foundation pit, and the soil column leaching module comprises a soil column experiment device; a sensor device is inserted into the soil column experimental device, the sensor device is electrically connected with the data acquisition device, the soil column experimental device is provided with a soil sampling window, the spraying module comprises a spraying pipe, one end of the spraying pipe is communicated with the reservoir, and the other end of the spraying pipe extends above the soil column experimental device. On the basis that only surface water is concerned to drive pollutant migration originally, the underground water control module and the water supply Markov bottle are additionally arranged, and fluctuation of the underground water level can be achieved; long-term and continuous in-situ monitoring of soil moisture in-situ data can be achieved in real time, non-destructive collection of samples can be achieved, and the research quality of the vertical migration rule of oil and gas field ground pollutants is improved.

The invention discloses an agricultural non-point source pollution treatment system, and relates to the technical field of agricultural environmental protection and water treatment, and the agricultural non-point source pollution treatment system comprises an ecological ditch unit, an ecological pond unit, a connecting pipeline and a control unit; the ecological ditch unit is used for carrying out primary pretreatment on sewage through a plant enhanced corridor and an ecological filter dam to remove suspended solids and part of pollutants; the ecological reservoir pond unit realizes deep purification through a multi-stage process of flocculent precipitation, enhanced denitrification, ecological treatment and a stable area; the control unit intelligently regulates and controls water flow based on water quality monitoring data, water reaching the standard is directly reused in farmland or lakes, and water not reaching the standard enters a pond to be further treated. According to the invention, stepped deep removal of pollutants, cyclic utilization of water resources and self-adaptive operation of the system are realized, and the treatment efficiency and stability are improved.

The invention relates to the technical field of concrete dams, in particular to a concrete dam deep crack comprehensive treatment method which comprises the following steps: firstly, drilling a crack stopping hole in the tail end of a crack to prevent the crack from extending; then slotting along the crack, burying an exhaust pipe, and sealing the crack; then, deep reinforcement and anti-seepage treatment are carried out step by step, specifically, grouting seam penetrating holes are drilled, superfine cement grout is poured, chemical grouting seam penetrating holes are drilled in the upstream face, and epoxidation chemical grout is poured; then, an SR anti-seepage cover plate is pasted on the upstream face crack area; and finally, integrally spraying a polyurea coating. By means of the multi-layer treatment process combining structure reinforcement and flexible seepage prevention from inside to outside, the reliability and durability of crack treatment are remarkably improved, the dam face can be kept uniform and attractive in appearance, and the method has the advantages of being reliable in technology, economical and reasonable.

A combined type erosion gully slope protection structure belongs to the technical field of water and soil conservation engineering, aims to solve the problem that an existing erosion gully slope protection structure cannot give full play to soil fixation and water retention effects of plant root systems, and comprises an ecological layer, a supporting layer, a protective layer and a water interception groove. The ecological layer is laid on the slope surface of the slope body in the gradient extending direction of the slope body, the supporting layer is laid on the ecological layer, the ecological layer and the supporting layer are fixed to the slope body through a plurality of anchor rods, the protective layer is laid on the supporting layer and fixed to the supporting layer through a plurality of supporting plates, and the water intercepting groove is fixedly embedded in the top of the slope body. And the water intercepting groove is arranged close to the protective layer. The slope protection structure is mainly used for the erosion gully.

The invention discloses a working face dust removal, spraying and fresh air system for a coal mine, and belongs to the technical field of coal mine underground environment governance and occupational health safety. The system comprises a track hoisting and moving device, a wet-type vortex dust removal fan, a spraying and dust falling device, a fresh air device and an automatic control system. The structural frame is hung on the moving trolley through the hanging chain and is driven by the driving main machine to move dynamically along the track. The dust removal fan adopts the combination of a radial mixing type impeller and a dewatering vortex wheel, so that powerful dust collection and dry and comfortable exhaust are realized; the spraying device realizes intelligent avoiding and spraying stopping through a personnel proximity sensor; the fresh air device is of a double-channel structure, and positive-pressure clean fresh air is provided for the breathing area through four-stage deep purification. The problems that traditional equipment is installed and fixed, functions are split, people are prone to getting wet, and breathing guarantee is lacked are solved, integrated cooperation of full-working-face dynamic cruise control, precise dust suppression and medical-grade fresh air supply is achieved, and the safety and comfort of underground operation are remarkably improved.

The utility model belongs to the industrial and mining tail gas purification equipment technical field, specifically disclose a kind of floatation workshop VOCs gas treatment system, including cyclone tower, mechanical oil mist purifier and activated carbon adsorber, spray liquid and smoke dust reverse contact in cyclone tower, remove large particle in smoke dust, small amount of volatile gas and organic matter, waste gas is exported from the gas outlet of cyclone tower top after preliminary purification, then in turn enter mechanical oil mist purifier and activated carbon adsorber, remove residual particulate matter in waste gas, water vapor, floatation reagent and volatile organic matter and oil class material, finally, the gas after treatment reaches standard is discharged to high altitude through chimney, the spray liquid containing particulate matter and organic matter exported from cyclone tower bottom liquid outlet is handled by oil-water separator and waste residue filtering device, and is pumped to cyclone tower by water pump and is recycled, the utility model floatation workshop VOCs gas treatment system, can effectively treat floatation workshop smoke dust containing waste gas, high efficiency, low energy consumption, process flow is simple.

This invention discloses an integrated ceramic catalytic filter tube, its preparation method, and its application, belonging to the field of industrial flue gas treatment. The integrated ceramic catalytic filter tube includes a ceramic filter tube substrate and a catalytic coating. The raw materials for the catalytic coating include a noble metal catalytic slurry and a vanadium-based catalytic slurry. The noble metal catalytic slurry includes a noble metal catalyst. The noble metal catalyst uses Nb-CeO2 / WO3 as a support and platinum and / or palladium as the active ingredient. The mass ratio between the active ingredient and the support is (0.1–0.15):1. The catalytic coating obtained by combining two different active catalytic slurries can compensate for each other's insufficient activity within different temperature ranges, improving the overall multi-pollutant removal efficiency of the catalytic coating. Furthermore, using a porous ceramic filter tube as the substrate material not only facilitates the distribution of the catalytic slurry but also helps retain particulate pollutants, achieving integrated denitrification and dust removal and efficient treatment of multiple pollutants in flue gas.

This utility model discloses a chemical-free farmland irrigation water treatment system, belonging to the field of farmland irrigation water treatment. The system includes, in sequence, a raw water tank, a sedimentation tank, a storage tank, a filtration system, a filtered product water tank, a bipolar membrane electrodialysis device, a water tank, an electrodialysis system, and a water reservoir. The desalinated liquid outlet of the bipolar membrane electrodialysis device is connected to the sedimentation tank via a first pipe, and the concentrated liquid outlet of the electrodialysis system is connected to the first pipe via a second pipe. This utility model eliminates the need for any added chemicals throughout the process, reducing treatment costs, preventing soil and groundwater pollution caused by chemical residues, achieving an environmentally friendly closed loop through concentrated liquid recycling, and precisely desalinating to produce compliant irrigation water, thus balancing cost, environmental protection, and water resource utilization efficiency.

This invention relates to the field of water treatment technology and provides a device for the restoration and treatment of aquatic ecosystems. The device includes a chemical tank, a float, and a propeller, and further comprises: a support assembly, a swing frame, a dual-output shaft motor, a pusher cylinder, a reciprocating disc, a reciprocating arm, a C-shaped rod, an inner shaft, a rotating plate, and a telescopic plate; a controllable chemical delivery assembly, which is also connected to the output end of the dual-output shaft motor. When the dual-output shaft motor is started, the swing frame swings back and forth, and the reciprocating arm pushes the reciprocating disc to reciprocate within the pusher cylinder. Simultaneously, the dual-output shaft motor drives the controllable chemical delivery assembly to extract the chemical from the chemical tank and controllably deliver it to the inner center of the pusher cylinder. This invention combines reciprocating motion with chemical delivery technology, and achieves efficient and flexible treatment of large areas of water through the float and propeller, significantly improving the effect of aquatic ecosystem restoration.

The invention discloses a recovery method and a recovery system of butadiene-containing tail gas and application of the butadiene-containing tail gas in tail gas treatment of a polybutadiene device. The recovery method comprises the following steps: (1) feeding tail gas into an absorption tower, and absorbing butadiene in the tail gas by using an organic absorbent in the absorption tower; butadiene absorption liquid and residual tail gas after absorption are obtained; (2) detecting the content of butadiene in the residual tail gas; if the content of butadiene reaches the standard, the butadiene is discharged outwards; (3) if not, stopping the steps (1) and (2), and sequentially carrying out pre-regeneration treatment and regeneration treatment for desorbing butadiene on the butadiene absorption liquid in the absorption tower; butadiene desorbed by the pre-regeneration treatment is used for replacing protective gas in the absorption tower; butadiene desorbed from regeneration treatment is recycled, and the organic absorbent after regeneration treatment is reused in the step (1). According to the invention, the cyclic operation of absorption and desorption of butadiene is realized in one absorption tower, and higher temperature and pressure are not needed, so that the operation cost of equipment is reduced. Therefore, the butadiene-containing tail gas recovery system is simple in structure, low in operation cost and simple and convenient to maintain.

The invention relates to the technical field of nursing data security management, and discloses a data security management system and method for an intelligent nursing cloud platform, and the system comprises an edge gateway module, a multi-track transmission module, and a management reconstruction module. The method comprises the following steps that: an edge gateway module acquires a nursing data stream, splits the nursing data stream into data slices, and analyzes the data slices into a data load, a time sequence index and an identity label vector; extracting physiological rhythm characteristics, calculating a sending interval, and sending data through an independent channel; the governance reconstruction module records the actual arrival time interval and restores the physiological rhythm features; and calculating the correlation between the two, and reconstructing the data by using the identity label and the time sequence index if a threshold value is met. According to the invention, by associating the physiological rhythm and the transmission behavior of the nursing data and utilizing a correlation verification mechanism to identify counterfeiting and replay attacks, the authenticity and integrity of the multi-source heterogeneous nursing data converged at the cloud end are ensured.