Page 16 - PR 2014 2016 08 Environmental Science and Technology

232 Environmental Science and Technology | Progress Report

Adsorption and desorption studies of contamination for pharmaceutical and endo-
dyes and pharmaceutical compounds crine disrupters in water courses. Nowadays,
using biocarbon ceramics it is widely known that the pharmaceuticals
compound present in water pollution is consid-
The agriculture business knows Brazil and ered the greater responsible for the increasing
their products around the world. The fertilizer bacterial resistance. Micronized biocarbon and
industry has performed high yield in food ceramic sorbents as magnetite, diatomite, and
production with tendency to increase daily. water treatment plant sludge (WTP sludge)
The study of fertilizers desorption is essential have desirable properties for environmental
to modelling and predict its nutrients releasing conservation. The uses of such adsorbent ma-
capacity, mostly to improve its use benefits and terial with chemical stability, high surface
avoid the environmental impacts of high nutri- area, low toxicity and especially for magnetite,
ents discharge in surface water resources. The the magnetic response enhance the water
project aims to the use of Brazilian biocarbon treatment efficiency with low cost (Fig. 9).
as slow release fertilizer in the early steps to
control the nutrients input to the environment Analytical Chemistry
& Metrology
by desorption processes improvements.

Quality system based on ABNT
ISO/IEC 17025 Norm

In order to align to the requirements of
Nuclear Fuel Cycle, a Quality System based
on the ABNT ISO/IEC 17025 norm is being
implemented in the analytical laboratories.
As required, laws and rules compliances, per-
sonnel training, documentation, processes
and environment monitoring and controlling
are examples of what kind of issues are to
be done. Existing analytical procedures are
being configured and new ones are in course
according to that norm. As the system will be
implemented, many benefits are expected
not only about organization, but also in the
quality of results. Procedure validation and
the estimative of measurement uncertainties
allowed increasing the knowledge of what
is being done. In a broader view, this local
system is part of the institutional integrated
Figure 9 (a/b): SEM Micrography of biocarbon
sample with 200x and 500x of magnification quality system management policy which
includes other norms of conformity, such
Raw domestic sewage discharges are the as the ABNT NBR ISO 9001. As the system is
primary sources and the most responsible implemented, higher levels of standards are

Instituto de Pesquisas Energéticas e Nucleares