Recycling; recycling of waste and trash; recycling of plastic; recycling of materials, namely, waste and chemicals; recycling of waste and trash at recycling plants; air purification and treatment of water; treatment of materials, namely, catalytic conversion of chemical compounds; chemical processing of liquids, namely, water and solvent treatment; chemical treatment of waste products; chemical treatment of plastics; chemical recycling, namely, recycling of chemicals; recycling of chemicals;...