Disclosed is an apparatus for capturing bioaerosols. More particularly, the apparatus for capturing bioaerosols includes a sprayer configured to spray a buffer solution for protecting aerosol particles in a form of droplets; and a capturer into which air including the droplets and the aerosol particles is introduced and in a capture solution in which the aerosol particles are captured, wherein discharge members provided with a plurality of nanostructures are provided on a surface of the capturer to charge the aerosol particles. Due to such a configuration, high discharge efficiency can be anticipated even at a low voltage without damage to aerosol particles.

Disclosed is an apparatus for capturing bioaerosols. More particularly, the apparatus for capturing bioaerosols includes a sprayer configured to spray a buffer solution for protecting aerosol particles in a form of droplets; and a capturer into which air including the droplets and the aerosol particles is introduced and in a capture solution in which the aerosol particles are captured, wherein discharge members provided with a plurality of nanostructures are provided on a surface of the capturer to charge the aerosol particles. Due to such a configuration, high discharge efficiency can be anticipated even at a low voltage without damage to aerosol particles.

Method and apparatus for cleaning pollution control equipment, such as particulate removal devices, including wet electrostatic precipitators (WESP). The apparatus may include a housing having a chamber, at least one process gas inlet in fluid communication with the chamber, a process gas outlet spaced from the at least one process gas inlet and in fluid communication with the chamber, one or more ionizing electrodes in the housing and one or more collection electrodes or plates in the housing. Sealing liquid is provided and introduced into the chamber in an amount sufficient to submerge the at least one process gas inlet and stop the flow of contaminated gas into the chamber.

Method and apparatus for cleaning pollution control equipment, such as particulate removal devices, including wet electrostatic precipitators (WESP). The apparatus may include a housing having a chamber, at least one process gas inlet in fluid communication with the chamber, a process gas outlet spaced from the at least one process gas inlet and in fluid communication with the chamber, one or more ionizing electrodes in the housing and one or more collection electrodes or plates in the housing. Sealing liquid is provided and introduced into the chamber in an amount sufficient to submerge the at least one process gas inlet and stop the flow of contaminated gas into the chamber.

A method for reducing dust removal electric field couplings includes the following steps: selecting a ratio between a dust collection area of a dust removal electric field anode and a discharge area of a dust removal electric field cathode to be 1.667:1-1680:1. A dust removal electric field anode and/or dust removal electric field cathode size is selected so that the number of electric field couplings is less than or equal to 3. The number of electric field couplings is reduced, electric field energy consumption is low, electric field coupling consumption for an aerosol, water mist, oil mist and loose smooth particulate matter is reduced, and electric field energy is saved.

A particle collection vessel (2) which charges particles in air and then collects them includes a vessel body (7) having an opening (8); a suction part (14) provided in the opening (8) and having an inflow path (22) through which the air is flowed from an outside into an inside of the vessel body (7); a discharge part (16) provided in the opening (8) and having an outflow path (26) through which the air is discharged from the inside to the outside of the vessel body (7); a discharge electrode (15) provided in the inside of the vessel body (7) and to which a high voltage is applied; and a medium storage part (50) provided in the inside of the vessel body (7) and capable of storing a medium for collecting the particles in the air charged by the discharge electrode (15).

A particle collection vessel (2) which charges particles in air and then collects them includes a vessel body (7) having an opening (8); a suction part (14) provided in the opening (8) and having an inflow path (22) through which the air is flowed from an outside into an inside of the vessel body (7); a discharge part (16) provided in the opening (8) and having an outflow path (26) through which the air is discharged from the inside to the outside of the vessel body (7); a discharge electrode (15) provided in the inside of the vessel body (7) and to which a high voltage is applied; and a medium storage part (50) provided in the inside of the vessel body (7) and capable of storing a medium for collecting the particles in the air charged by the discharge electrode (15).

An air dust removal method, comprising the following steps: 1) using an ionization dust removal electric field to adsorb particulate matters in intake air; and 2) using the ionization dust removal electric field to charge an intake air electret element. The method can effectively remove dust in air, the dust removal ability is better, and the dust removal efficiency is higher.

An air dust removal system (101) includes a dust removal system inlet (1011), a dust removal system outlet, and an electric field apparatus (1014). The electric field apparatus (1014) has an electric field apparatus inlet, an electric field apparatus outlet, a dust removal electric field cathode (10142), and a dust removal electric field anode (10141); the dust removal electric field cathode (10142) and the dust removal electric field anode (10141) are used for generating an ionization dust removal electric field. When dust is collected in the ionization dust removal electric field, the electric field apparatus (1014) detects an electric field current. The air dust removal system (101) can effectively remove particulate matters in air.

The present invention discloses a process for preparing sulfur from reduction of sulfate/nitrate by iron-carbon and recovering desulfurization/denitration agents. High-concentration SO.sub.2 flue gas produced by calcination of a sulfate and NOx produced by heating decomposition of a nitrate can be directly reduced to elemental sulfur vapor and N.sub.2 through reaction with an iron-carbon material at a high temperature. Then, after dust removal, cooling and fine dust removal, sulfur is recovered by a sulfur recovery device, and metal oxides can replace alkaline mineral resources such as limestone as raw materials of desulfurization (denitration) agents. This process can recycle the desulfurization and denitration agents.