Capsule for non-ferrous metal collection and method of collecting non-ferrous metal

Abstract

Provided are: a capsule for non-ferrous metal collection that can collect a non-ferrous metal; and a method for collecting a non-ferrous metal using same. The capsule for non-ferrous metal collection comprises capsule contents and a covering section covering the capsule contents, and collects a non-ferrous metal within the capsule for non-ferrous metal collection by means of the capsule for non-ferrous metal collection being immersed in a solution containing a non-ferrous metal.

1 . A capsule for collecting a non-ferrous metal comprising a capsule content and a shell covering the capsule content, wherein the capsule is immersed in a solution containing the non-ferrous metal to collect the non-ferrous metal in the capsule. 
     
     
         2 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the capsule content comprises one or more bacteria selected from the group consisting of  Geobacter  bacteria,  Desulfomonas  bacteria,  Desulfuromusa  bacteria,  Pelobacter  bacteria,  Shewanella  bacteria,  Ferrimonas  bacteria,  Aeromonas  bacteria,  Sulfurospirillum  bacteria,  Wolinella  bacteria,  Desulfovibrio  bacteria,  Geothrix  bacteria,  Deferribacter  bacteria,  Geovibrio  bacteria,  Pyrobaculum  bacteria,  Thermotogae  bacteria,  Archaeoglobus  bacteria,  Pyrococcus  bacteria and  Pyrodictium  bacteria. 
     
     
         3 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the capsule content comprises  Shewanella  bacteria. 
     
     
         4 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the capsule content comprises  Shewanella oneidensis  or  Shewanella algae.    
     
     
         5 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the non-ferrous metal to be collected is one or more selected from the group consisting of a rare metal and a rare noble metal. 
     
     
         6 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the non-ferrous metal to be collected is palladium, platinum, rhodium, gold, silver, indium, gallium or a rare earth element. 
     
     
         7 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the capsule content further comprises at least one selected from the group consisting of an electron donating component, an electron accepting component and a liquid culture medium. 
     
     
         8 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the capsule for collecting a non-ferrous metal is a seamless capsule. 
     
     
         9 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the shell is obtained by curing a shell formation composition comprising a photocurable component and a shell permeation aid. 
     
     
         10 . The capsule for collecting a non-ferrous metal according to  claim 9 , wherein the photocurable component is one or more selected from the group consisting of an acrylate-based oligomer, an unsaturated polyester-based oligomer, an polyene thiol-based oligomer, a cinnamic acid-based oligomer, an epoxy-based oligomer, a vinyl ether-based oligomer and an unsaturated polyamide-based oligomer, and the shell permeation aid is one or more selected from the group consisting of alginic acid, polyvinyl alcohol, agar, carrageenan, gellan gum, pectin, starch, a starch derivative, dextrin, cellulose and protein. 
     
     
         11 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the capsule content comprises an oil containing  Shewanella  bacteria. 
     
     
         12 . The capsule for collecting a non-ferrous metal according to  claim 1 , wherein the capsule content comprises an intermediate layer portion containing an oily substance, and a hydrophilic portion containing  Shewanella  bacteria, wherein the intermediate layer portion is in layer structure at the time of preparing a capsule. 
     
     
         13 . The capsule for collecting a non-ferrous metal according to  claim 11 , obtained by:
 extruding an oily composition comprising  Shewanella  bacteria from a first nozzle, and extruding a shell formation composition from a second nozzle simultaneously into a carrier fluid, wherein the first nozzle and the second nozzle are concentrically arranged with sequentially increased radiuses in which the first nozzle is present innermost and the second nozzle is present outermost, and   then, curing the shell formation composition with light irradiation.   
     
     
         14 . The capsule for collecting a non-ferrous metal according to  claim 12 , obtained by:
 extruding a hydrophilic composition comprising  Shewanella  bacteria from a first nozzle, extruding an oily composition from a second nozzle and extruding a shell formation composition from a third nozzle simultaneously into a carrier fluid, wherein the first nozzle, the second nozzle and the third nozzle are concentrically arranged with sequentially increased radiuses in which the first nozzle is present innermost and the third nozzle is present outermost, and   then curing the shell formation composition with light irradiation.   
     
     
         15 . A method of collecting a non-ferrous metal, comprising:
 an immersion step of immersing the capsule for collecting a non-ferrous metal according to  claim 1  in a solution containing a non-ferrous metal, and   a separation step of separating the capsule for collecting a non-ferrous metal immersed in the immersing step.   
     
     
         16 . The method of collecting a non-ferrous metal according to  claim 15 , wherein the non-ferrous metal to be collected is one or more selected from the group consisting of a rare metal and a rare noble metal. 
     
     
         17 . The method of collecting a non-ferrous metal according to  claim 15 , wherein the non-ferrous metal to be collected is palladium, platinum, rhodium, gold, silver, indium, gallium or a rare earth element.