Abstract: An ammonia-containing liquid or an ammonia-containing gas is made to contact a porous coordination polymer in which a metal ion and an organic ligand coordinately bonded, ammonia is adsorbed to the porous coordination polymer, and the ammonia is desorbed from the ammonia-adsorbed porous coordination polymer to recover the ammonia. The porous coordination polymer that contacts the ammonia-containing liquid preferably has a water-soluble solvent adhered thereto. The ammonia-containing gas is preferably adjusted such that water is contained at an amount of 106 parts by mass or more when the ammonia content is 100 parts by mass.

Abstract: Conventionally, distribution containers, particularly, corrugated cardboard containers and EPS containers, have been used as containers for conveying perishable foods. These containers are disposed as waste after the containers have been used repeatedly by a few times. The amount of these containers disposed as waste is huge, and it has been necessary to reduce the waste, from the viewpoint of resource protection and environmental protection. Particularly, in the EPS containers, bacteria are easily propagated on the inner walls. Further, in the case of the corrugated cardboard containers, they have not been satisfactory from the viewpoint of heat insulation and cooling of the contents. The present invention provides a foldable distribution container for conveying perishable foods of which a foldable container main body and a lid unit covered on the upper opening of the container main body are manufactured as three-wall structures made of a transparent synthetic resin material and having two air layers.