Device for treating organic waste gas with oil-in-water emulsion and method for treating organic waste gas

The invention relates to a chlorobenzene waste gas treatment tank, which consists of a photocatalytic oxidation zone, a trickling filtration zone, an alkali washing zone, a dehumidifier, an activated carbon adsorption layer and an exhaust fan from the bottom up in order. The photocatalytic oxidation zone is located at a lowest part, the photocatalytic oxidation zone is internally provided with an ultraviolet generator and a catalytic device, and the ultraviolet generator comprises a controller, a ballast and an ultraviolet light tube; the catalytic device is an aluminum based TiO2 net, which surrounds the ultraviolet light tube, and the lower part of the photocatalytic oxidation zone is equipped with a waste gas inlet pipe and a waste gas distribution pipe; the trickling filtration zone is provided with a tap water spray apparatus, filler, a trickling filtrate gathering apparatus and a trickling filtrate storage slot; the alkali washing zone is equipped with a waste gas alkali washing component, which consists of an alkali washing spray unit, an alkali washing liquid storage slot and an alkali washing circulation pump; the upper part of the alkali washing zone is equipped with the dehumidifier; the upper part of the dehumidifier is provided with the activated carbon adsorption layer; and the exhaust fan is mounted at the top-most conical tank body.

Chlorobenzene waste gas treatment tank

The invention provides a removal method of polycyclic aromatic hydrocarbons in semi-volatile organic waste gas, comprising the following steps: pretreating semi-volatile organic waste gas containing polycyclic aromatic hydrocarbons to obtain pretreated semi-volatile organic waste gas; letting the pretreated semi-volatile organic waste gas contact with a water-phase emulsion of rhamnolipid produced from pseudomonas aeruginosa at 35-55 DEG C and absorbing polycyclic aromatic hydrocarbons in the pretreated semi-volatile organic waste gas so as to obtain an emulsion containing polycyclic aromatic hydrocarbons; and degrading the emulsion containing polycyclic aromatic hydrocarbons by the use of thermophilic thermophilic bacteria to obtain treated semi-volatile organic waste gas By the utilization of rhamnolipid produced from pseudomonas aeruginosa, a solubilization effect is generated on polycyclic aromatic hydrocarbons in the semi-volatile organic waste gas (SVOCs) with poor water solubility; and with the degradation effect of thermophilic thermophilic bacteria, removal rate of polycyclic aromatic hydrocarbons in the semi-volatile organic waste gas is high The removal rate of phenanthrene in organic waste gas reaches 937%; and removal rate of total organic carbon TOC reaches 80% and above

Removal method of polycyclic aromatic hydrocarbons in semi-volatile organic waste gas

The invention provides a method for improving purification of insoluble organic waste gas of a biological trickling filter tower, belonging to the technical field of biological purification of the organic waste gas The method is characterized in that spray liquid of the biological trickling filter tower is prepared by adopting commercial industrial non-ionic surfactant-polyoxyethylene sorbitan monooleate (Tween 80), the biological trickling filter tower is the original traditional commonly used device, and the method can be operated by utilizing the device The process parameters during the operation process are as follows: the concentration of the Tween 80 is 50-80mg/L, the residence time of the gas in the biological trickling filter tower is 30-60s, and the spray density of the spray liquid is 02m /m d The method can effectively improve the purification effect of the insoluble organic waste gas of the biological trickling filter tower, shorten the startup time of a trickling filter bed, facilitate the operation and reduce the cost

Mi Li

Papers

Method for improving purification of insoluble organic waste gas of biological trickling filter tower