A facsimile apparatus includes an e-mail creation unit that creates an email including image data transmitted or received by facsimile or via an Internet, and a setting information specification unit that specifies archive setting information based on a communication type when transmitting or receiving image data. An oxygen-containing gas may also be introduced into the wastewater. Also disclosed is a nanocomposite that can be a mixture of a halogenated elastomer, a polymer modified with a carboxylic acid, and an organoclay.