Patent ID: 7431849

Claim:
A process for insitu treating contaminated water having at least one targeted constituent comprising: insitu contacting said contaminated water with a plurality of encapsulated reactants, wherein each of said plurality of encapsulated reactants has an outer encapsulant and at least one inner reactant and said plurality of encapsulated reactants has a first group of encapsulated reactants wherein said inner reactant is persulfate and a second group of encapsulated reactants wherein said inner reactant is ferrous sulfate; maintaining said encapsulated reactants in a substantially nonreacted state in said insitu environment until contacting said at least one targeted constituent; permeating, dissolving, or reacting a plurality of said outer encapsulants with said at least one targeted constituent exposing at least a portion of said reactants to said at least one targeted constituent; and reacting at least a portion of said exposed portion of reactants with said at least one targeted constituent.