Clarifier
This component is slated to be removed from the system.
Clarifier rakes
This component no longer utilized for its intended purpose can help balance flows in the system
the mix tank
at 0% level. there is still this many gallons of water
40,000 gallons.
The basin pumps will trip on loss of.
discharge pressure, seal water pressure, and seal water flow.
This input is normally aligned to the #2 clarifier
RO reject
the clarifiers purpose is to allow this to occur.
solids to precipitate out of solution
Starting a breakpoint at a low pH can cause the production of this gas
Nitrogen tri-chloride (chlorine gas)
the total capacity for the NRW basin is this many gallons.
240000
the chlorine transfer pumps are this type of pump.
magnetically coupled centrifugal pump
This input contains acid and caustic
polisher waste
By opening the 1LW80 the #2 clarifier can operate in this mode.
Surge mode
this instrument can cause the NRW system to go into recirc.
Discharge ph probe.
the basin pumps are rated at this GPM.
600 gpm
The clearwell pumps are rated at this capacity
600 gpm
this input may contain some ammonia and hydrazine
SGBD drain tank
The purpose of this component is to retain oil.
under weir baffle ring
when in an outage the NRW operator should take this action regarding the outfalls
Force them closed.
At this level the basin mixers can be started
20%
with a loss of pressure alarm locked in for Clearwell pump # 3 the pump will.
Not trip
This input is usually contains a lot of iron
quartz filter backwash
the total capacity of the clarifier this amount.
400000 gallons
This condition causes a U1 control Room C-41 NRW trouble alarm with no alarm on panel 936
clearwell hi-hi with pumps out of service or tripped.
if the basin is pumping down at 8% an hour. how many gallons per hour are pumped?
16,000
the #3 and #4 clearwell pumps have seal water provided by this system
Seal Water Management System (SWMS)
If this input is overflowing it will be pumped to the basin.
Raw water basin