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OLEOP
AT
OR P OPERA
TION MANU
AL
15
5.2 CLEANING COALESCENCE UNITS
Coalescence unit must be removed
periodically for cleaning. The separator is
not functional during this process.
1.
Ensure inlet/outlet valves are closed.
2.
Pull the coalescence unit up above
water level in the separator, using a
hoist where necessary.
3. Allow water to drip into the separator
before removing the coalescence
unit.
4. Clean the coalescence unit in a
bucket or other appropriate area
to contain wastewater for proper
disposal (contaminated water can be
poured back into the separator).
5. Completely remove all dirt* by
spraying with clean water from either:
a) minimum ¾" hose, under mains
pressure (minimum 58 psi), or
b) high pressure device using cold
water at a maximum of 870 psi.
6. Rinse thoroughly with a high pressure
device with max 870 psi and 140 °F
(60 °C).
Removing Coalescence Mats
Coalescence mats are attached to a
supporting basket at the top and bottom
of the coalescence unit with tensioners
and Velcro strips (fluffy side outwards).
Once these supports are removed, mats
can be unwound from basket. Mats only
need to be removed from the basket if
soiling is particularly bad.
Replacing Coalescence Mats
To replace coalescence mats, wrap the
mat around the supporting basket and
replace tensioners and Velcro straps
(fluffy side outwards). When wrapping
the mat around the basket ensure
no openings are left that could allow
wastewater to flow through untreated.
Avoid wrapping coalescence mats too
tightly to prevent damage.
Tip – Lengthy operational hold-ups can be
prevented by swapping dirty coalescence
units for clean back-up/spare coalescence
unit. The dirty coalescence unit can be
stored in a water-filled container until—to
prevent dirt drying hard onto unit—it can
be cleaned.
* Only use cleaning products when
absolutely necessary. Ensure cleaning
agent will not damage the separator by
consulting cleaning product MSDS details
for suitability.