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1. The Abstract Dailer Morales
11-2 Jm
IEACO
28-Oct-2014

2. Cassava starch separation: evaluation
of sedmientation

3. Background
The production of cassava starch in
Colombia comes mainly from the
northern region of the Cauca
Department in small agricultural
industries known as “rallanderías”,
in which the settling of the slurry
occurs in channels.

4. A im or porpuse of research
Evaluate the sedimentation process
performed in rectangular channels
Two main components were
evaluated: determination of the
change in the concentration of the
slurry entering the settling zone and
determination.

5. Method used
It is important to evaluate
the sedimentation process
performed in rectangular
channels (0.3m high; 0.4
m wide; 165 m long).

6. Findings/results
In relation to the affluent of the channels, it
was found that the concentration of the
slurry during strainer operation was
between 0.1 to 6% most of the time.
The particles greater than 10 μm in size
were efficiently retained; particles between
6,7 to 8,8 μm were not retained and were
discharged into local bodies of water,
generating environmental problems.

7. conclusion
Cassava starch
industry,
sedimentation by
gravity, sedimentation
channels, starch
particles.

8. Sexual risik in adolescents depending
on the age of sexual

9. Background
In spain Young people have
thein first sexual intercaurse
at an earlierage tan in other
countris; however, Little is
know obout the relations hip
between age of sexual of but
and sexual behariar in this
population.

10. A im or porpuse of research
Sexual practies and
methods of protection are
analyzed depending on the
age sexual debut among
spains adolescents who are
sexually experienced.

11. Method used
Three groups were formed
acoren to the age of sexual
debut reported early sexual
(earlier than is years),
avarege (15 years) and late
(later tan 15 years).

12. Findings/results
The early sexual debut group reported
further mutual masturbation, vaginal
intercourse and oral sex with a higher
nomber of sexual parthers tan the rest.
Condom use at first intercourse,
purcentage of use and consisten condom
use was significantly lower in the early
sexual.