Wastewater Analysis - HPE Environmental Solutions

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Cetco Laboratory

Waste Water Analysis

CETCO Oilfield Services’ commitment to research and
development has helped make us a leader in water treatment.
Our extensively equipped laboratory and team of scientists
provide innovative products and wastewater treatment
programs for industrial, municipal, pipeline, and oil production
wastewater. Based on our evaluation of each customer’s
wastewater, we provide efficient and cost-effective treatment
options using our specialized line of products while providing
unsurpassed customer support.
CETCO Oilfield Services Research and Testing Laboratory
performs a wide range of instrumental and wet-chemical
analyses using state-of-the-art analytical equipment. Some
of the laboratory’s capabilities include: 

• Total Suspended Solids (TSS) - Water is pulled through
a pre-weighed glass filter by a vacuum pump. The filter
is dried and the final weight is recorded. Results are
recorded in parts per million (ppm) and 100 mls of water
are required for the test.

• Fat, Oil, and Grease (FOG) - Hexane extraction infrared
analysis is based on EPA method 1664. Results are
recorded in parts per million (ppm) and 100 mls of water
are needed for the test.

• Metals Analysis - Water is digested with acid in a
microwave, filtered, and then analyzed with an ICP
(Inductively Coupled Plasma) Spectrometer, which is
capable of determining the presence and concentration
of most metals.

• Total Organic Carbon (TOC) - Measures level of total
organic carbon in water. (TOC is a more direct and
convenient expression of total organic content than the
BOD or COD, but does not provide the same information
and does not replace these tests.)

• Chemical Oxygen Demand (COD) - A spectrophotometer
is used to measure the chemical oxygen demand in
water. Results are recorded in parts per million (ppm)
and 20 mls are required for the test.

• Toxicity Characteristic Leaching Procedure (TCLP)
- Determines the ability of elements to leach from a
sludge. Sludge, acid, and DI (Deionized) water are
mixed overnight and the resulting solution is filtered.
The filtered water is then analyzed for contaminants of

• Atomic Absorption (AA) - Used to measure the level of
exchangeable or leachable elements in a sample. A
solid, generally a clay, is digested, filtered, and analyzed
on a flame spectrometer.

• X-Ray Diffraction (XRD) - Used to identify mineral
components of a solid (i.e. bentonite, limestone,
diatomaceous earth, etc). Two grams of material are
required, but the test is non-destructive so the material
can be returned or reused.

• X-Ray Florescence (XRF) - Used to identify the
percentage of an element present in a solid. Results
are recorded as a percentage, and 2 grams of the sold
are required for the test.

• Thermo-Gravimetric Analysis (TGA) - Used to measure
and identify the organic components in a solid. A small
amount of material is slowly heated, and its weight loss
is measured. Results are recorded as a percentage,
and less than one gram is required for testing.

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