| abstract |
Generally, systems for air and water purification using unpowered charged sorbent mediums ( 3 ) which may include layered double hydroxide (LDH) ( 1 ) compositions, lignin ( 2 ), and methods of sorbing inorganic or organic material(s) onto such mediums, including an ionic contaminants ( 10 ), cationic contaminants ( 11 ), non-ionic organic contaminants ( 20 ), and even biological agents ( 7 ) such as bacteria or viruses present in liquids or gases. |