Zero
discharge
of
slop
oil
from
No.1
hydrocracker
of
ZRCC
Technical
and
supervisory
staff
of
No.3
refining
division
had
taken
some
effective
measures
so
that
zero
discharge
of
light
slop
oil
from
No.1
hydrocracker
was
achieved.
This
is
a
new
action
for
Clean
Water
and
Blue
Sky
Project
after
the
unit
reached
zero
discharge
of
heavy
slop
oil.