A variable-diameter biological trickling filter device for treating gas

Abstract

A variable-diameter biological drip-filter device for gas processing belongs to the technical field of gas processing devices. A gas inlet pipe, a draught fan inlet air valve, an induced draught fan, a draught fan outlet air valve and a biological filter tower gas inlet are connected successively, the biological filter tower gas inlet is located at one side of a bottom gas inlet chamber of a reactor body biological filtration tower, a water replenishing pipe matches a water replenishing electromagnetic valve, a water drain pipe matches a water drain electromagnetic valve, the water replenishing electromagnetic valve and the water drain electromagnetic valve are respectively connected with a liquid storage tank, the liquid storage tank is located below the gas inlet chamber, a filling area and a gas outlet chamber are successively arranged above the gas inlet chamber, a spray water pipe is arranged in the gas outlet chamber, the upper end of the gas outlet chamber is also connected with a gas outlet pipe; a temperature sensor, a liquid level meter and a pH monitor are arranged in the liquid storage tank, the liquid storage tank is connected with the spray water pipe successively by a butterfly valve, a circulating water pump, a pipe filter, a stop valve and a water pressure gauge through a circulating water pipe; the circulating water pump is controlled by a spray water electromagnetic valve. The variable-diameter biological drip-filter device can save a filler, and make full use of the filler.

Description

technical field [0001] The invention relates to a variable-diameter biological trickle filter device for processing gas, which belongs to the technical field of gas processing devices. Background technique [0002] The biological method is a gas treatment method that has emerged in the past 20 years. It is aimed at low-concentration waste gas that has no recovery value and seriously pollutes the environment. Through the metabolic activities of microorganisms, the biodegradable toxic and harmful gases in the waste gas are converted into simple inorganic compounds. CO 2 , water, etc. process. Biological methods can be divided into biological washing, biological filtration and biological trickling. The bio-trickling filtration method has improved some problems encountered in the operation of the traditional bio-filtration method, such as frequent renewal of filler degradation, pH value reduction due to acidification, and low humidity of exhaust gas to dry the filler, etc., an...

AI Technical Summary

Problems solved by technology

The nutrient solution in the trickling filter tower is continuously absorbed and utilized by microorganisms, and the concentration will decrease along the axis of the tower, which cannot ensure the uniform distribution of the nutrient solution, resulting in uneven distribution of humidity and biomass in the filter tower, reducing the effective degradation space, and affecting odor The removal effect is high, resulting in the problem of high pressure drop and easy clogging

Patent 200620167601.2 discloses a device for purifying organic waste gas by bio-trickling filtration. This device solves the problem of uneven distribution of nutrient solution and biomass. However, during long-term operation, there will be blockage at the bottom of the device, resulting in poor circulation of nutrient solution. smooth question

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