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240 Environmental Science and Technology | Progress Report
Adsorption and desorption studies of tamination for pharmaceutical and endocrine
dyes and pharmaceutical compounds disrupters in water courses. Nowadays, it is
using biocarbon ceramics. widely known that the pharmaceuticals com-
pound present in water pollution is considered
the greater responsible for the increasing bac-
terial resistance. Micronized biocarbon and ce-
ramic sorbents as magnetite, diatomite, and
water treatment plant sludge (WTP sludge)
have desirable properties for environmental
conservation. The uses of such adsorbent ma-
terial with chemical stability, high surface area,
low toxicity and especially for magnetite, the
magnetic response enhance the water treat-
ment efficiency with low cost (Fig. 9).
• Analytical Chemistry & Metrology
Quality system based on ABNT
ISO/IEC 17025 Norm
In order to align to the requirements of Nu-
clear Fuel Cycle, a Quality System based on
the ABNT ISO/IEC 17025 norm is being imple-
mented in the analytical laboratories. As re-
quired, laws and rules compliances, personnel
training, documentation, processes and envi-
Figure 9 (a/b): SEM Micrography of biocarbon
sample with 200x and 500x of magnification ronment monitoring and controlling are ex-
amples of what kind of issues are to be done.
The agriculture business knows Brazil and their Existing analytical procedures are being config-
products around the world. The fertilizer in- ured and new ones are in course according to
dustry has performed high yield in food pro- that norm. As the system will be implement-
duction with tendency to increase daily. The ed, many benefits are expected not only about
study of fertilizers desorption is essential to organization, but also in the quality of results.
modelling and predict its nutrients releasing Procedure validation and the estimative of
capacity, mostly to improve its use benefits measurement uncertainties allowed increas-
and avoid the environmental impacts of high ing the knowledge of what is being done. In a
nutrients discharge in surface water resources. broader view, this local system is part of the
The project aims to the use of Brazilian biocar- institutional integrated quality system man-
bon as slow release fertilizer in the early steps agement policy which includes other norms
to control the nutrients input to the environ- of conformity, such as the ABNT NBR ISO 9001.
ment by desorption processes improvements. As the system is implemented, higher levels
of standards are met showing the way for to-
Raw domestic sewage discharges are the pri- tal conformity assessment.
mary sources and the most responsible con-
Instituto de Pesquisas Energéticas e Nucleares