Advanced oxidation process

Advanced Oxidation Processes (abbreviation: AOP), refers to a set of chemical treatment procedures designed to remove organic and inorganic materials in waste water by oxidation.

Contaminants are oxidized by pulsing and cycling four different reagents: ozone, hydrogen peroxide, oxygen, and air, in precise, pre-programmed dosages, sequences, and combinations. These procedures may also be combined with UV irradiation. This results in the development of OH radicals (hydroxyl radicals).

The AOP procedure is particularly useful for cleaning biologically toxic or non-degradable materials such as pesticides, petroleum constituents, and volotile organic compounds in waste water. The contaminant materials are converted to a large extent into stable inorganic compounds such as H2O, CO2 and salts. A goal of the waste water purification by means of AOP procedures is the reduction of the chemical contaminants to such an extent that the cleaned waste water may be reintricued to receiving streams.

see also: Waste water treatment Sewage decontamination Anaerobic waste water purification Process engineering

Literature:

Michael OD Roth: Chemical oxidation: Technology for the Nineties, volume VI: Technologies for the Nineties: 6 (Chemical oxidation). Hrsg. of: W. Wesley corner fields and John A. Roth, Technomic Publishing CO, Lancaster among other things. 1997, ISBN 1566765978. (engl.)

Thomas Oppenlaender: Photochemical purification OF of water and air : advanced oxidation of processes (AOPs) : principles, reaction mechanisms, reactor concepts. Wiley VCH, Weinheim 2003, ISBN 3-527-30563-7. (engl.)