7 results about "Atmospheric emissions" patented technology

A method characterizes gas emissions inside an area bounded by first, second, third, and fourth paths. A first spectrometer transmits a first beam along the first path. The first beam is retroreflected back to the first spectrometer, where it is detected to obtain a first signal. A second spectrometer transmits a second beam along the second path. The second beam is retroreflected back to the second spectrometer, where it is detected to obtain a second signal. A third spectrometer transmits a third beam along the third path. The third beam is retroreflected back to the third spectrometer, where it is detected to obtain a third signal. A fourth spectrometer transmits a fourth beam along the fourth path. The fourth beam is retroreflected back to the fourth spectrometer, where it is detected to obtain a fourth signal. The four signals are processed to identify gas sources inside the area.

The invention discloses a sampling device for waste treatment atmosphere non-point source emission quantification, and belongs to the technical field of gas sampling equipment.The sampling device comprises a sampling ship body, the sampling ship body comprises a cuboid frame with three faces enclosed, hollow quadrangular frames are installed at the two ends of the cuboid frame, and ventilation openings are formed in one ends of the two hollow quadrangular frames; the two hollow quadrangular frames are respectively used as a gas outlet and a gas inlet, the gas inlet is communicated with a gas pump, the gas pump is communicated with a gas inlet corrugated pipe, the sampling ship body is detachably connected with a floating body, the two hollow quadrangular frames are respectively communicated with a Teflon gas pipe, the other ends of the Teflon gas pipes are respectively communicated with different interfaces of a gas path exchange valve, and the gas path exchange valve is communicated with a gas analyzer. Continuous automatic online monitoring of solid and liquid atmospheric surface sources can be realized by loading and unloading the floating body, the defects of limited environment, low time resolution, low automation degree and the like when a traditional gas sampling device is used on the water surface are overcome, and the sampling efficiency, precision and reliability are greatly improved.

The application discloses a wastewater and waste gas treatment process for an acrylonitrile production device, and belongs to the technical field of wastewater and waste gas treatment. The process comprises the following steps: (1) a nitrile removal process: adding an alkaline substance into condensate of a four-effect evaporator to adjust the pH value, and reacting to obtain water discharged from the nitrile removal process; introducing first part of atmospheric discharge of an AOGI waste gas incineration system into the water discharged from the nitrile removal process to adjust the pH value; (2) a cyanide breaking process: the water discharged from the step (1) is introduced into a UV / H2O2 advanced oxidation process to react, and water discharged from the cyanide breaking process is obtained; introducing all atmospheric discharge of a WWI waste water incineration system and second part of atmospheric discharge of the AOGI waste gas incineration system into the water discharged from the cyanide breaking process to adjust the pH value; (3) the water discharged from the step (2) is sequentially treated by an A / A / O process and a biological filter EBF, and can be discharged up to the standard. The treatment process realizes waste treatment by waste, so that the wastewater and waste gas generated in the acrylonitrile production device can be stably discharged up to the standard, and carbon and nitrogen emission reduction of the acrylonitrile production device is realized.

The application discloses a phenol-free polyamide self-adhesive paint for electromagnetic wire coating and a preparation method and application thereof, and comprises a film forming substance and a solvent, wherein the film forming substance comprises aliphatic polyamide resin, bisphenol A epoxy resin, oil-soluble phenolic resin, leveling agent and release agent; and the solvent comprises phenylethanol, butanol, ethanol and propylene glycol methyl ether acetate (PMA). The product manufactured by the application has the advantages of low toxicity and low atmospheric emission pollution, good physical and chemical properties, stable storage characteristics, ideal coating performance, excellent bonding characteristics, moisture resistance, deformation resistance and the like, can greatly improve the occupational health hazards of wire coating operation, and can obtain a green electromagnetic wire product, and has wide market application value.

A method characterizes gas emissions inside an area bounded by first, second, third, and fourth paths. A first spectrometer transmits a first beam along the first path. The first beam is retroreflected back to the first spectrometer, where it is detected to obtain a first signal. A second spectrometer transmits a second beam along the second path. The second beam is retroreflected back to the second spectrometer, where it is detected to obtain a second signal. A third spectrometer transmits a third beam along the third path. The third beam is retroreflected back to the third spectrometer, where it is detected to obtain a third signal. A fourth spectrometer transmits a fourth beam along the fourth path. The fourth beam is retroreflected back to the fourth spectrometer, where it is detected to obtain a fourth signal. The four signals are processed to identify gas sources inside the area.

This application relates to a method and system for inverting anthropogenic carbon dioxide emission sources based on the carbon-nitrogen homology relationship, belonging to the technical field of carbon pollution synergistic governance and atmospheric emission inversion. The method includes: collecting and preprocessing multi-source data; constructing a carbon dioxide emission source assimilation system based on four-dimensional variational theory; statistically analyzing the proportions of anthropogenic carbon and nitrogen emissions by province and department based on carbon-nitrogen homology constraints, and combining this with high-resolution anthropogenic nitrogen dioxide emission sources through proportional conversion to obtain prior anthropogenic carbon dioxide emission sources. These prior anthropogenic carbon dioxide emission sources, along with the preprocessed multi-source data, are input into the assimilation system for assimilation and inversion. The carbon dioxide concentration obtained from three-dimensional variational assimilation within a buffer region larger than the study area is used as the initial and boundary conditions of the system. A four-dimensional variational algorithm is used to invert and obtain carbon dioxide emission adjustment coefficients, ultimately correcting the data to obtain high-resolution anthropogenic carbon dioxide emission data. This method can achieve accurate inversion of anthropogenic carbon dioxide emissions.