Patent ID: 9718713
Date: 2017-08-01
CPC Classifications: B01D,B01J,C02F

Claim:
1. A system for the removal of arsenic from water, comprising a vessel having a spouted vessel bottom and containing zero valent iron particles having corrosion products on their surfaces; water containing arsenic disposed within said vessel; and a fluid circulation system comprising an external inlet nozzle connected to the spouted vessel bottom, an inlet liquid jet in fluid communication with the external inlet nozzle and a draft tube disposed above an inlet spout; wherein water containing arsenic from the inlet liquid jet enters the external inlet nozzle and circulates said zero valent iron particles upwardly along said draft tube to redeposit them into the vessel wherein the spouted vessel bottom channels the zero valent iron particles towards the inlet spout causing zero valent iron particle-zero valent iron particle abrasion and removal of the corrosion products from the the surfaces of the zero valent iron particles, wherein the zero valent iron particles are carbon steel spheres, and wherein the corrosion products bind with arsenic within the water.