Method for controlling excessive biomembrane accumulation in gas-phase biofilter

Abstract

The invention discloses a method for controlling excessive biomembrane accumulation in a gas-phase biofilter, belonging to the field of biofiltration process based waste gas treatment of atmospheric pollution control engineering in environmental engineering, particularly relating to a method for biologically controlling excessive biomembrane accumulation in a gas-phase biofilter. In the method, a certain amount of adults of blattaria in insect are loaded into the gas-phase biofilter with excessively accumulated biomembranes and used for swallowing the biomembranes accumulated on the surface and the shallow layer of a filler layer of the biofilter, and thus, the excessive biomembrane accumulation in fillers can be controlled effectively. By using the method, under the condition of not increasing operating equipment and not changing the operation conditions of the biofilter, the long-term, continuous and stable operation performance of the gas-phase biofilter can be maintained by using biological swallowing to remove the biomembranes excessively accumulated in the surface and the shallow layer of the filler layer. The method is convenient to operate, is economical, effective, environment friendly and the like.

Description

technical field [0001] The invention belongs to the field of waste gas treatment by biological filtration in air pollution control engineering in environmental engineering, and in particular relates to a biological control method for excessive accumulation of biofilm in a gas-phase biological filter. Background technique [0002] Exhaust gas emissions containing volatile organic compounds have seriously polluted the environment, leading to crop yield reduction, destruction of forests and ecosystems, ozone depletion and formation of photochemical smog, direct or indirect damage to human health, and even carcinogenic and teratogenic. At present, the technology of purifying organic waste gas can be divided into two categories: recovery method and decomposition method. Recovery methods include adsorption, absorption and condensation; decomposition methods include incineration, flame and biodegradation. Other technologies are still in the initial development stage, including mem...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems that the excessive accumulation of biofilm in the packing of the gas-phase biological filter will lead to bed blockage, short flow, increased pressure drop, etc., and then lead to the problem that the treatment performance of the reactor deteriorates sharply during long-term operation. Method for treating organic waste gas provides a cost-effective biological method for controlling excessive biofilm accumulation