GE P&W Wastewater TOC Analyzer - Manual (Page 2)

Key Applications
• Petrochemical
• Food and Beverage
• Chlor-alkali Chemistry
• Pharmaceutical
• Environmental Labs
• Manufacturing
• Municipal/Industrial Wastewater
• Power
• Research
• Pulp and Paper
• Brine and Seawater
• Unconventional Oil & Gas
Technology and Operation
The InnovOx features three main steps, each with
significant process innovations:
Sample Handling and Reagent Mixing
The InnovOx ensures superior sample representa-
tion and accuracy by processing a large sample
volume and thoroughly agitating the sample in
the Sample Mixing Chamber. The sample and re-
agents are added through a sample coil delivery
system which prevents syringe contamination.
Supercritical Water Oxidation (SCWO)
Using a patented SCWO technique (see sidebar below), the
Sievers InnovOx takes the water sample to a supercritical
state by increasing the temperature, and subsequently the
pressure, within the reactor. The properties of supercritical
water enable an ultra-efficient oxidation of TOC to carbon
dioxide, even in the presence of chloride and other in-
organic species that negatively interfere with traditional
oxidation techniques.
NDIR Detection
The InnovOx uses a highly stable, nondispersive infrared
(NDIR) detector. Unlike other NDIR detectors, the InnovOx
NDIR has no moving parts, and features tight temperature
control of the IR source and detector.
Visit the library at www.geinstruments.com to see animations of
key components and the innovative SCWO oxidation technique.
InnovOx On-Line TOC Analyzer Touch-Screen Interface InnovOx On-Line TOC Analyzer Touch-Screen Interface
Supercritical Water Oxidation (SCWO)
Supercritical Water Oxidation (SCWO) was originally developed to
treat large volumes of aqueous waste streams, sludges, and contami-
nated soils. SCWO destroys organic wastes using an oxidant in water
and temperatures and pressures above the critical point of water:
375 °C (770 °F) and 22.1 mPa (3,200 psi). These conditions enable rapid
and complete oxidation of organic carbon to CO
2
.
Today, SCWO research and development is focused on treating a vari-
ety of toxic and hazardous organic wastes. GE Analytical Instruments
is the first company to use this technique in a commercial laboratory
TOC instrument.
Supercritical
fluid
critical point
pr
es
su
re
liquid
gas
solid
Supercritical fluid ―
not gas or liquid
critical point
temperature o C
pr
es
su
re (psi)
liquid
gas
solid
Supercritical Water
Oxidation (SCWO)
Organic + S
2
O
8
- 2 + heat + pressure
→ CO
2
+ H
2
O + SO
4
-2
3200
15
375
o C
normal
boiling
point