Treatment Process Overview
FujiClean’s “contact filtration” treatment is a simple, well engineered process that consists of a controlled, circuitous
flow train through anaerobic and aerobic chambers and in direct contact with assorted proprietary fixed film medias
on which biological digestion of organic matter occurs. Media is also designed and positioned to provide mechanical
filtration of process wastewater.
The system includes two air lift pumps (see diagram below). The Recirculating Airlift Pump returns process water and
sludge from the aerobic zone to the sedimentation chamber, recirculating 2-4 times inflow per day for CE models and
4-6 times inflow for CEN (enhanced denitrification) models. The Effluent Airlift Pump is designed to help equalize flow
and discharge treated effluent.
8
Outlet
Air
Sludge Transfer
(Recirculating Air Lift pump back)
Chamber 3B
. Disinfection Chamber
(final zone before discharge – option for chlorination tablet disinfection)
Chamber 1.
Sedimentation Chamber
(separates solids and greases)
Chamber 3.
Aerobic Contact
Filtration Chamber
(both board and cylindrical hollow
mesh media) oxygen rich zone for
aerobic microbe digestion activity,
solids filtration and nitrification of
ammoniac nitrogens to nitrates
Powered by the FujiMAC “Rll” Series
Air Pumps
State-of-the-art linear
diaphragm air pumps manufactured
by FujiMAC, Sized to system and site
conditions.
Chamber 2.
Anaerobic Chamber
(spherical-skeleton filter media) organic matter
decomposition by micro-organisms, suspended
solids are captured and nitrates are denitrified
Chamber 3A
. Clarification Chamber
(settling zone)
Flow Equalization
When water level
exceeds LWL, treated
water is discharged
through Chamber 3B
via the Effluent Air Lift
pump. If water level
exceeds HWL, then
treated water is also
discharged through an
overflow effluent weir.
Overflow
Effluent Weir
During treatment, water
level fluctuates between
high and low water levels
Inlet
Airlift Pumps.
This generic
illustration shows the mechanics of the
“airlift pumps” used in this system,
which are simple pipe conduits
through which pressurized air (from air
pump) is introduced at the bottom and
by fluid pressure, water is carried up
the pipe by ascending bubbles.
Two Air Lift Pumps.
One Recirculating
Air Lift pump sending process water
and solids back to Chamber 1, and one
Effluent Air Lift pump for measured
discharge of treated effluent.
Disinfection Chamber
Clarification Chamber
OR
[CE5-10, CEN5-7]
[CE14-30, CEN10-21]
