(Corporación Universitaria Lasallista, Editorial Lasallista, 2018) Ramos Ascue, Juan Diego
Introduction. The organic material is a
source of damage to the environmental
and superficial water, nevertheless, the
direct and continuous measurement
of this, either COT, BOD, or COD, is
difficult and has a relatively high cost.
A method currently used to monitor the
organic material in real time is by means
of the spectral absorption coefficient
at a wavelength of 254nm (SAC254).
Objective. Evaluate the precision of
measurement and the level of correlation
between COD and the value of SAC254.
Materials and methods. Two practical
tests of organic measurement systems
with this technology (SAC254) were
carried out, a test was conducted in a
domestic wastewater treatment plant
owned by SEDAPAL and another in an
industrial wastewater treatment plant
owned by PROTISA. The measurement
system employed included an in-line
sensor with SAC254 and a data logger
capable of correlating parameters
SAC254 and COD. Results. An
average error of 13% was observed in
the measurement system, the SAC254
proved to be a practical tool in terms
of easy handling, reagent-free and
suitability for use in both domestic and
industrial wastewater. Conclusion. The
measurement system installed allowed
us to verify that there is indeed a direct
