CO2 COLLECTING APPARATUS FOR ANAEROBIC DIGESTION TANK AND ENVIRONMENT FACILITIES OF USE IT

PURPOSE: A carbon dioxide collecting apparatus for an anaerobic digesting bath and a gardening facility using the same are provided to generate carbon dioxide or methane gas by using organic waste. CONSTITUTION: A carbon dioxide collecting apparatus for an anaerobic digesting bath includes a carbon dioxide collecting unit(200), a storing part(210), a collecting part(230), and a supplying part(250). The storing part stores biogas from an anaerobic digesting bath(100). The collecting part refines biogas from the storing part and collects carbon dioxide. The supplying part supplies collected carbon dioxide from the collecting part. The collecting part includes an impurity treating part(220). The impurity treating part eliminates at least one of sulfur compound, siloxane, and moisture from biogas. The collecting part includes a pressure swing absorbing filter, a methane gas storing tank, and a carbon dioxide storing tank. The pressure swing absorbing filter separates methane gas and carbon dioxide by passing through the biogas.