摘要:
There is provided a process for reducing formaldehyde content of a gas comprising contacting the gas with a basic aqueous oxidizing solution comprising H2O2 so as to oxidize at least a part of the formaldehyde contained in the gas into formic acid. Thus, a gas having a reduced content in formaldehyde as compared to the gas before the process and a solution comprising formic acid, are so-obtained. Such a process can be particularly useful for treating various types of gases containing formaldehyde.
摘要:
There is provided a method for reducing the content of at least one water soluble volatile organic compound in a gas. The method comprises contacting the gas with an aqueous acidic oxidizing composition comprising H 2 O 2 and a metal catalyst, and submitting the at least one water soluble volatile organic compound and the aqueous acidic oxidizing composition to an UV radiation.
摘要:
There is provided a fiberboard, such as a MDF fiberboard or a HDF fiberboard, comprising wood fibers, a binder, and a sludge such as a pulp and a paper sludge. The sludge can be, for example, chosen from a primary pulp and paper sludge, a secondary pulp and paper sludge, a de-inking sludge, and mixtures thereof.