T/CI 034-2022 The technical requirements for the treatment of tail gas by biotechnology for the production of phenolic resins

Scope

Scope: This standard specifies the general requirements for the biological treatment technology of phenolic resin production waste gas, including the cultivation and use of microorganisms, engineering design, operation and maintenance, and inspection and testing methods. This standard applies to the biological treatment technology of phenolic resin production waste gas containing volatile phenols, formaldehyde, and methanol and other organic pollutants. Main technical content: Basic principles The principle of using microbial metabolic functions to harmlessly treat organic pollutants in this standard (Figure 1): (1) The selected functional microorganisms are attached to the filler to form a special structure of biofilm; (2) VOCs in the waste gas pass through the gas membrane and are adsorbed to the wet biofilm surface; (3) The pollutants adsorbed on the biofilm surface are captured by the microorganisms inside the biofilm; (4) The pollutants entering the microorganism cells are utilized by the microorganisms as energy and nutrients and decomposed into CO2 and H2O. Basic process The waste gas collected by the waste gas collection system first enters the dust removal and humidification device for preliminary purification, and then enters the core biological treatment device. The pollutants in the waste gas are converted into microbial cells, CO2, and H2O when passing through the filler layer attached with microorganisms in the device. The purified waste gas is discharged from the outlet of the core biological treatment device.

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