123 results about "Pollutant" patented technology

The invention discloses a solid microbial agent used for remedying the soil contaminated by petroleum, belonging to the technical field of bioremediation of soil contaminants. First-class seed liquid of acinetobacter radioresistens and rhodococcus erythropolis are mixed in equal parts after two steps of fermentation in liquid and solid states and cultivation to obtain the solid microbial agent, wherein, the number of effective viable bacteria of acinetobacter radioresistens and rhodococcus erythropolis is 10 to 10 CFU/g. The solid microbial agent in the invention has the advantages of low cost, high number of viable bacteria; the invention further has the advantages that micro-ecological environment improvement of the soil can be improved and secondary contamination cannot be caused to the environment, thus applicable to the bioremediation of the soil which is contaminated by petroleum and petroleum products.

The invention relates to a method, a system and a device for measuring and calculating the external insulation pollution degree of an electric transmission and transformation device, wherein a spot pollutant accumulation measuring device automatically measures the electrical conductivity of pollutants by utilizing a conduction electrode on the surface of a simulation shed, data is transmitted into a central server for measuring and calculating the pollution degree and is converted into the equivalent salt density, the accumulation amount of external insulation pollutants before and after each rainfall can be measured immediately, and the accumulation amount on the external insulation surface pollutants at a measuring site is predicted according to the pollutant accumulation velocity so as to early warn the pollution flashover risk of the device.

The invention discloses a mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method which is characterized by comprising the following steps of: transporting contaminated bottom mud in a river or water reservoir to closed pipeline mixers via an environment-friendly sand dredger or mud pump, throwing a stabilizing and curing agent into the first pipeline mixer, throwing a flocculating and conditioning agent into the second pipeline mixer, finally dewatering and reducing volume of bottom mud in geotex pipe pockets, and curing and stabilizing bottom mud contaminates. After the bottom mud in the geotex pipe pockets is solidified for 7-50 days, the moisture content of the bottom mud reaches less than 55%. The bottom mud in the bag pockets is transported off the site by using a mobile car body. Treatment or resource utilization reaches national relative standards. The technological innovation bridge spot of the method is 'environment-friendly sand dredging + agent + geotex bag pocket dewatering + natural drying of bottom mud + mobile car body'. Not only is the sludge treatment amount large during project implementation process, but also no site area is occupied, the technology is simple, and the operating cost is low. Good economic benefits are achieved.

The invention relates to a counter-flow flame combustion chamber which has a monocyclic cavity structure. The counter-flow flame combustion chamber is designed by adopting a concept of staged combustion, and combustion gas is supplied from a pre-combustion stage and a main combustion stage, wherein the pre-combustion stage adopts a diffusion combustion structural mode with stable whirlblast, and the main combustion stage adopts a combustion structural mode of combining premixing and pre-evaporation with counter-flow flame. The counter-flow flame combustion chamber mainly comprises a shunt diffuser, an external combustion chamber case shell, an internal combustion chamber case shell, a fuel nozzle, a head pre-combustion stage, a flame tube external wall main combustion stage, a flame tube internal wall main combustion stage, a flame tube external wall and a flame tube internal wall, wherein the head pre-combustion stage utilizes stable flame in a low-speed backflow area, which is generated by whirlblast air entering the combustion chamber from a pre-combustion stage whirlblast assembly; the main combustion stage comprises the flame tube internal wall main combustion stage and the flame tube external wall main combustion stage, and uniform oil-gas mixture jetted from the main combustion stage counters in a flame tube to form a counter jet flow which forms counter-flow flame under the ignition of pre-combustion flame. The invention has simple structure, and can effectively reduce disposal of pollutants besides ensuring the normal work condition of an aeroengine.

The invention discloses application of a two-dimensional transitional metal carbide nanosheet as a radionuclide adsorbent. Due to the fact that two-dimensional transitional metal carbide nanosheet MXene material has an absorption effect on radionuclide, the two-dimensional transitional metal carbide nanosheet can be utilized as the adsorbent for absorbing radionuclide.Compared with other inorganic nanometer adsorption material, MXene material, featuring a nano layered structure, can effectively increase adsorption capacity of radionuclide. In the meantime, storage space of the adsorbent is greatly reduced due to large density of MXene material.Accordingly, MXene material has potential application value in the field of irradiated fuel reprocessing, control over radioactive pollutants discharged by a nuclear power station, a hospital, a factory and others.

The invention discloses a scale advanced treatment method for livestock and poultry farming waste water. The method of the invention comprises the following steps: (1) adding acid to the livestock and poultry farming waste water after biological treatment, and regulating the pH value of the waste water to be less than or equal to 5.0; (2) adding H2O2 and soluble ferrite to the waste water to carry out oxidation reaction, wherein the mol ratio of the H2O2 to the Fe<2+> in the soluble ferrite is between 1:1 to 2:1; and (3) after carrying out reaction for not less than 10 minutes, adding alkali to reaction liquid, regulating the pH of the reaction liquid to be greater than or equal to 6.0, carrying out flocculating and depositing, and then discharging deposit and waste water according with the discharge standard. By controlling the pH value of the reaction system, the adding proportion of the H2O2 to the FeSO4, and the running time, the invention achieves the treatment effect and optimization of energy consumption. The process effectively oxidizes and decomposes the trace organic pollutants (incretion interferents, antibiotics and the like), simultaneously removes various heavy metals and phosphorus by coagulating sedimentation, inactivates pathogenic bacteria in the waste water, and realizes integrated high-efficiency reinforcement treatment of the livestock and poultry farming waste water.

The invention discloses a method for constructing a multi-stage subsurface flow constructed wetland system, and the method comprises the following steps: (1) selecting a littoral zone with a slope as a wetland pond or digging and backfilling to get a wetland pond with a slope; (2) grading and filling a matrix, namely designing stages according to the pollution load and the height difference of slope, and filling the matrix in each stage of the wetland; (3) arranging drainage holes, water outlet holes and water inlet holes; (4) planting plants, namely planting the plants on each stage of the wetland respectively. The method disclosed by the invention has the following beneficial effects: (1) the system constructed by the method has no influence on the coastal zone structure of a landscape water body. (2) the system constructed by the method has a better purification effect on water flowing into rivers and water contaminated by the landscape water body, especially has an obvious purification effect on pollutants such as SS (Stainless Steel), oil and COD (Chemical Oxygen Demand) and has a good removal effect on heavy metals, TN and TP. (3) the system constructed by the present invention can integrate the purification function with the greening of coastal zones, so that the diversity of landscape is enriched and the overall landscape effect is improved.

The present invention provides a photocatalyst composite structure and a preparation method thereof. The photocatalyst composite structure has backbone-branch structural feature; the graphite type carbon nitride (g-C3N4) is the backbone, and carbon nanotubes(CNTs) grown in situ on the backbone chemical through vapor deposition (CVD) are the branches; and the nano photocatalyst coats on the entire backbone-branch complex structure surface. The invention has the advantages that the photocatalyst composite structure can degrade organic contaminants and realize photocatalytic water decomposition for hydrogen production under ultraviolet and visible light; in addition, the backbone-branch composite structure has large specific surface area, and can fully contact with organic pollutants and electrolyte solution to improve the photocatalytic efficiency.

The invention discloses a water pollution online analysis and quick source tracing method used for strengthening supervision of wastewater discharged by enterprises in the industries of printing and dyeing, coking, electroplating, electronic manufacturing, papermaking, pharmacy, metal manufacturing and the like. According to the method, a multi-channel laser Raman online analysis and multi-channelelectrochemical online analysis combined technology is adopted to perform online analysis and monitoring on multiple types of pollutants possibly occurring in a monitored water area, and the online analyzed and monitored water pollution data is analyzed automatically by utilizing a pre-constructed pollution source database, source tracing software and a data analysis platform so as to realize online water pollution source tracing. By adopting measures such as multiple test channels, a wide-electrochemical potential window three-dimensional bismuth film alloy electrode, a modulation asymmetricsquare wave test method, a surface enhanced Raman accessory and the like, the test rate, the detection capability and the monitoring resolution capability of online analyzing and testing various types of pollutants are ensured.

The invention relates to a cleaning system for honeycomb-shaped plasma free radicals. The cleaning system comprises a mechanical arm, a plasma generator, a rotary base and an air inlet system. The cleaning system is characterized in that: the plasma generator is fixed on the mechanical arm; the plasma generator consists of upper electrodes and a lower electrode which are mutually insulated and is positioned in a shell; the upper electrodes are installed on an insulating board and consist of a plurality of column-shaped electrodes which are wrapped by an insulating medium; the lower electrode is a metal electrode which is provided with honeycomb-shaped holes; an air inlet chamber is arranged between the upper electrodes and the lower electrode; each column electrode in the upper electrodes penetrates through the air inlet chamber and inserts into a honeycomb-shaped hole of the lower electrode to form a certain discharging gap with the honeycomb-shaped hole; the discharging gaps penetrate through the air inlet chamber; the air inlet chamber is connected with a high-pressure air source through an air conduit; and plasmas are generated in the honeycomb-shaped holes and are sprayed on the silicon chip which is placed on the surface of a rotary chassis from the honeycomb nozzles of the lower electrode under the drive of air pressure, so that the photoresist and the organic pollutants on the surface of the silicon chip are eliminated.

Cryogenic fluids are used to remove contaminants such as hard scale deposits from heating and/or heat transfer equipment. The fluid may be cryogenically cooled to achieve a liquid phase and/or a mixture of liquid and gas phases. The fluid may also be pressurized. The mixture does not include a solid phase. A particle injection port is not required. The cryogenic fluid contacting the surface of a scale or other contaminant that has built-up during service of heating or heat exchanging equipment causes a near instantaneous contraction at the scale surface. Cracks form at the scale surface contacted by the cryogenic fluid. These cracks extend through the scale thickness to the underlying material of the equipment of the heating and/or heat exchanging component. The fractured surface scale separates by spalling or de-cohesion from the underlying equipment structure and is moved off the surface by the action of the exiting cryogenic fluid.

The invention discloses an online purification solid-phase extraction monolithic column and a preparation method and purposes of the monolithic column. The monolithic column comprises a column pipe and a column body generated by in-situ polymerization in the pipe, wherein the column body is a polymer of butyl methacrylate-ethylene glycol dimethacrylate. According to the monolithic column, the surface of the bed of the monolithic column is provided with C4 groups, and the column structure is continuous and porous and has a certain mechanical strength and biocompatibility. Compared with a traditional filling extraction column, the online purification solid-phase extraction monolithic column has the characteristics of filling simplicity, low reaction pressure, repeated utilization and high extraction efficiency and can be used for online purification and enrichment of Sudan red in hot pepper products and glucocorticoid and other weak polarity compounds in milk. The technology provides a novel path for rapidly analyzing pollutants in food.

The invention discloses a quantitative detection method for FOC (Fusarium oxysporum f. sp. cubense (E.F. Smith) Snyd. & Hans.) race 4 from the soil. The method comprises the following steps: pretreating a sample to be detected and extracting DNA of the sample to be detected; preparing specific primers; conducting fluorescent nucleic acid isothermal amplification detection technique RealAmp reaction; constructing a RealAmp standard curve; and determining the result. The real-time fluorescent nucleic acid isothermal amplification detection technology provided by the invention is a novel nucleic acid detection technology combining a new generation of isothermal nucleic acid amplification technology with the real-time fluorescent detection technology, and has the advantages of high sensitivity, high specificity, low pollution and stable reaction. RealAmp can quantitatively detect pathogens; because of the characteristics of LAMP, Bst DNA polymerase has chain exchange capacity and good tolerance of inhibiting substances contained in the soil DNA extracts; the method carries out detection work on the soil, avoids cover opening and influence by contaminants and conducts on-site soil sample detection; the method for analysis and determination of reaction products is very simple; therefore, the method is suitable for wide application.

An assembled interior wall separator plate comprises an aerated concrete plate, two sides of the aerated concrete plate are connected with photocatalyst diatomite decoration plates, the upper end and the lower end of one side edge of the aerated concrete plate are respectively provided with bolt lockholes, the upper end and the lower end of the other side edge are respectively provided with cam bolt structures corresponding to the bolt lockholes, and the bolt lockholes and the cam bolt structures are used for connecting a plurality of aerated concrete plates to form a wall body. The structure of the assembled interior wall separator plate is simple, and is reasonably designed; the photocatalyst diatomite decoration plate and the aerated concrete plate have an excellent sound insulation performance, so the novel wall plate has good heat insulation and sound insulation performances; the photocatalyst decoration plate also can purify indoor air, adsorb and decompose pollutants and adjust the indoor air humidity; and the unique self-lockhole and cam bolt design makes the assembled interior wall separator plate simply and conveniently mounted and makes the decoration plate replaceable. The assembled interior wall separator plate has the advantages of high industrialization degree of the making process, easiness in control of the quality, saving of the labor cost, no wet work and no generation of building wastes or pollution in the construction process, short construction period and high construction efficiency.

The technology of the present application is directed to methods and kits for detecting and quantifying a non-polar analyte in a plant-derived sample. The technology uses a simple extraction, e.g., a liquid-liquid extraction (LLE) or solid-phase extraction (SPE), to enrich a sample for a non-polar analyte of interest and to remove contaminants. After the extraction and clean-up steps, liquid chromatography and mass spectrometry are used to detect the non-polar analyte. In one embodiment, acequinocyl and/or its derivatives is analyzed using liquid chromatography and tandem mass spectrometry (LC-MS/MS) and the improved LC-MS/MS conditions allows detection limits of acequinocyl and/or its derivatives of 50 ppb or less.

The invention discloses a method for preparing active carbon from biomass, and active carbon prepared by using the method. According to the method, the active carbon with an ultra-high specific surface area is prepared through baking, breaking, rapid stirring and chelating of an appropriate proportion of an activating agent, high-temperature pyrolysis and activation, acid washing and other steps. Compared to active carbon in the prior art, the active carbon of the invention has the advantages of usage of widely available and cheap raw materials, reutilization of the waste, rich pores and ultra large specific surface area, and has important application value in the fields of electrochemistry and pollutant adsorption. The method is simple in steps and suitable for industrial mass production.

An air quality monitoring arrangement is associated with an enclosed cab of an agricultural tractor used for towing or carrying spraying implements for treating crop with substances which might be toxic or otherwise harmful to people. A signal from a contaminant sensor is sent to a control arrangement which compares the actual sensed contamination of the air within the cab over time with a value from a performance map representing the performance expected from normal performance of the air circulating system of the cab. When the sensed contamination is higher than that of the performance map the operator is warned of a malfunction. The blower of the air circulating system may have its speed increased so as to pressurize the cab so as to exclude the entry of contaminated air through seals and other small openings of the cab. The air filters used are coded and recognized by the control system which keeps track of the service time of the filters and warns an operator when the service time exceeds that of a stored time value related to the particular filter.