Back to results
US 11,999,644 B2Granted
Ferrate based water treatment
AssigneeCeco Environmental IP Inc.
InventorsDavid Barker, Sammy Aquino
Life of this patent
Estimating the term…
Abstract
System and process for the treatment of water using a ferrate-based reduction-oxidation (redox) reactor, a clarifier, and a two-stage filtration system. Three treatment substrates can be used to treat water in the water treatment system and process, namely, a ferric compound(s), an acidic oxidant, and a flocculant-adsorbent.
Claims9
A process for treatment of a contaminated water stream, comprising:
- contacting the contaminated water with ferrate in a redox reactor to produce a redox water;
- removing particulate contaminants from the redox water in a clarifier to produce a clarified water;
- filtering at least a portion of the clarified water in a two-stage filtration system to produce a treated water,
- wherein each step of the process is performed on a continuous basis;
- feeding a first portion of a ferric compound solution to the redox reactor;
- feeding a first portion of an acidic oxidant solution to the redox reactor;
- contacting a ferric compound and an acidic oxidant to form the ferrate in-situ of the redox reactor;
- feeding a second portion of the ferric compound solution to the clarifier;
- feeding a second portion of the acidic oxidant solution to the clarifier;
- feeding a raw source water to a buffer tank;
- feeding a third portion of the ferric compound solution to the buffer tank;
- feeding a third portion of the acidic oxidant solution to the buffer tank;
- and
- removing the contaminated water from the buffer tank.
11 more elements
Dependencies are inferred from the claim text.