WARNING: Before starting up the system, ensure that
all isolation valves are fully open and all vessel drains are fully closed.
Failure to do so may result in improper system operation.
1. SYSTEM STARTUP
FIRST
WAVE SPROUT/10/40/85: V/P/G/SP-XXX-1
FIRST
WAVE 185: V/P/G/SP-XXX-1/2
Follow the steps below to start up the system:
Ensure that all drains and sample valves are closed.
Verify that the Emergency Shutdown (ESD) button is pulled out.
Clear any alarms from the system.
Set the chemical feed pumps (P-150B-1/2) to AUTO mode.
Set the Microscreen(s) (G-170-1/2, P-170-1/2) to AUTO mode.
Set the screw press(es) (SP-130-1/2) to Auto mode.
Ensure that the polymer tanks have freshly made polymer in them and
are full.
Refer to the "Chemical Make Down" section for instructions.
Fill all the tanks (V-170-1/2, V-130B) halfway.
Set the inlet feed pump (P-120) to AUTO mode and adjust the
desired flow rate according to the table below. The pump should start and
begin feeding water into the system.
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TECHNOLOGY PLATFORM
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INLET PUMP INITIAL FLOW RATE GUIDE (GPM)
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|
FIRST
WAVE Sprout
|
4
|
|
FIRST
WAVE 10
|
30
|
|
FIRST
WAVE 40
|
65
|
|
FIRST
WAVE 40 HIGH FLOW
|
150
|
|
FIRST
WAVE 85
|
90
|
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FIRST
WAVE 85 HIGH FLOW
|
250
|
|
FIRST
WAVE 185
|
175
|
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FIRST
WAVE 185 HIGH FLOW
|
500
|
Note:
If the system is a 2-screen
system (ie: First Wave 185 or First Wave 185 High Flow), it is important to
ensure that the motorized valves on the inlet piping are set to distribute 50%
of the flow to each screen. This ensures balanced operation and proper
utilization of both screens.
Please verify
and adjust the motorized valves on the inlet piping to achieve an equal
distribution of flow between the two screens. This can be done by adjusting the
valve positions accordingly. By setting the valves to send 50% of the flow to
each screen, you can optimize the performance of the system and ensure
effective solids removal.
2. ADJUSTING THE INLET FEED PUMP FLOW RATE
To adjust the flow rate of the inlet feed pump,
follow these steps:
Access the touchscreen interface.
Locate the flow rate adjustment control for the inlet feed pump.
Input the desired flow rate using the touchscreen or numeric input.
Verify the new flow rate using the flow meter mounted on the pump
discharge or check the flow rate displayed on the HMI.
After adjusting the flow rate, the inlet pump and chemical feed
pumps will automatically adjust their flow rates based on the new setting.
3. ADJUST THE TRANSFER PUMPS
To adjust the transfer pumps, which include the screw press liquids (P-130B) and the filtrate (P-170B) pumps, follow these steps:
Ensure that the pumps are in AUTO mode on the HMI.
Access the VFD controls on the HMI to adjust the motor speed of the
transfer pumps.
Ensure the PID controls are set to AUTO on the HMI.
Adjust the desired level setpoint in the corresponding feed tanks
to regulate the transfer pump operation.
Monitor the transfer pumps to ensure they are running steadily and
not cycling on and off.
4. INITIAL OPERATING INSTRUCTIONS
Follow these instructions for the initial operation
of the system:
The system should automatically control all the flows based on the
inlet flow rate.
The polymer dosing pumps (P-150B-1/2) should be in AUTO mode
on the HOA screen.
The PID loop should be set to AUTO mode for automatic
control of the pumps.
If the system is equipped with grōCONTROL, it should be initially
set to MANUAL mode on start-up. After running for 30 minutes and
confirming TSS measurements on both the inlet and filtrate liquids, grōCONTROL
can be switched to AUTO mode for automated dosing control.
Ensure that the flow is evenly distributed across the floc tank
spillway and the Microscreen screen.
Check the spray bar to ensure it is spraying evenly across the
microscreens and moving up and down. Adjust the P-170-1/2 NORMAL speed to
maintain a spray that is sufficient to keep solids sliding down the screen
without excessive accumulation. Adjust the P-170-1/2 CLEAN speed to
ensure it fully clears off all solids from the microscreen during the
predetermined clean mode intervals.
Monitor the transfer pumps (P-170B, P-130B) to ensure they maintain
the operator-set level, run steadily, and do not cycle on and off.