Eq, Anox And Aeration Tanks; Membrane Tank - ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual

4.5.2.1 EQ, Anox and Aeration Tanks

Fill the tanks in order - TNK-301, 401, 501, 502, 551, 601, 602 with potable water, run the
pumps and check for any signs of leakage.
Perform electrical and instrumentation (E&I) functional checks and adjustment of level
switches.
Turn on the air blower(s) for the blower(s) for aeration tank(s), and check for:
o Buoyancy of air diffusers and if this occurs, empty the tank and fix;
o Air leakages: if this occurs, tighten up the fittings;
Manually check water temperature and DO (dissolved oxygen): with a hand-held DO
meter and adjust air flow to keep it up to 0.5 – 1 mg/L for equalization tank(s) and 2 - 3
mg/L for aeration tank(s); check the DO readings on the touch screen.
DO Control System: check automatic ON/OFF of Aeration Tank air blowers at low and
high settings of DO without the return of aerated water from the membrane tanks to
aeration tanks (i.e. turn off transfer pump(s) from aeration tank(s) to membrane tank(s)
and turn of recirculation pump(s) from membrane tank(s) to aeration tank(s), if included),
and record blower ON/OFF duration.

4.5.2.2 Membrane Tank

Enable membrane operation using the HMI
Start the transfer pump(s) from the aeration tank(s) to the membrane tank(s) and fill the
membrane tank(s) with potable water.
Start the air blowers for the membrane tank(s) and check for an even distribution of air
across the membrane filter area and air bubble uniformity above the membrane
module/cassette.
Check hydraulic flow pattern through the membranes and between membrane module/
cassette and tank wall.
Make a clean copy of the Clean Water Testing Sheet presented in Appendix J of this
O&M Manual.
Record all checked parameters in the Clean Water Testing Sheet.
Start the permeate (vacuum) pumps.
Record the vacuum (TMP) on the gauge(s) on the permeate line [for clean water could be
0.05 to 0.07 bar (20" to 29" WC)].
Record water temperature and DO with a hand-held DO meter.
Gradually increase the permeate flow while recording the vacuum (TMP) on the gauges
up to the anticipated peak wastewater flow.
Forward a complete Clean Water Testing Sheet to newterra for analysis.
newterra O&M Manual
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