The Penn State Research Foundation

Robert B Parette

Fred S Cannon

Weifang Chen

Chongzheng Na

Benjamin Hagerup

Frederick S Cannon

Pin Hou

Siqi Hong

Nicole Robitaille Brown

Xin Gu

Brian A Dempsey

Fenglong Sun

Colin C Cash

Jiying Zou

Timothy M Byrne

Cesar Nieto Delgado

An activated carbon material for removing a contaminant from a liquid. The activated carbon material can be a plurality carbon grains that have a pore volume of approximately 0.1 milliliters per gram (mL/g) in the range of less than about 15 angstroms in width. The carbon grains can also have or contain a nitrogen-containing species having a concentration of more than 2 atomic percent nitrogen. A plurality of the carbon grains can be used to make a contactor that is operable to remove or reduce perchlorate having a concentration of 20 parts per billion (ppb) to less than 4 ppb from 4,500 bed volumes of water with the nitrogen-containing species leaching off of the carbon grains less than 0.1 mg/L. The activated carbon material can also be electrochemically regenerated.

Nitrogen-containing activated carbon material

A carbonaceous material that has been loaded with at least one ionic organic species or hydroxide species and at least one metal or alkaline earth metal. The ionic organic species or hydroxide species is at least one selected from the group consisting of: fatty acids, surfactants, organic carboxyl species, organic sulfonate species, organic hydroxyl species, organic phenolic species, organic lactone species, organic amine species, or hydroxide species.

Method for oxyanion removal from ground water

A method for removing perchlorate or other anionic contaminates from ground water which comprises the step of passing the ground water over activated carbon, wherein the activated carbon has been either preloaded with an organic cation functional group or organic cation polymer or cationic monomer, or tailored with ammonium or other reduced nitrogen-containing compound.

Method for perchlorate removal from ground water

Growing community of inventors

Furnace, PA, United States of America

Robert B Parette