29
Parameterization and operation
4.4.3
1-Channel RTC103 N-Module VFD
RTC MODULES / PROGNOSYS
RTC MODULES
RTC
CONFIGURE
SELECT SENSOR
Selection list of available, relevant sensors for the RTC module in
the sc network (refer to
).
N CONTROL
SRT MODE
Three different types of operation regarding the aerobic Sludge
Retention Time (SRT) can be selected:
•
Manually
: The SRT is provided as a manual input to the
controller
•
SRT-RTC
: The SRT is provided by a separate SRT-RTC and
forwarded to the RTC103 N-Module
•
TSS mL
: The SRT is calculated based on the TSS
concentration and the amount of TSS daily removed.
SRT (MANUALLY)
Manual input for the SRT (also used as fallback value)
[days]
DAILY SURPLUS MASS
The amount of sludge daily removed from the process. Based on
that amount, the MLSS concentration in the aeration tank and the
aerated volume the SRT is calculated.
[kg/d]
COD-TKN RATIO
This is the assumed COD / TKN ratio. The N-RTC considers a
certain COD-related amount of NH4-N to be incorporated in the bio
mass, reducing the amount of NH4-N to be nitrified.
MIN NITRIFERS CONC.
Based on the amount of NH4-N nitrified during the last SRT, the
N-RTC calculates the concentration of nitrifiers in the activated
sludge. This concentration is required to determine the DO set point.
If the calculated concentration is lower than the MIN NITRIFERS
CONC., the MIN NITRIFERS CONC. will be used to determine the
DO set point.
[%]
MAX NITRIFERS CONC.
Based on the amount of NH4-N nitrified during the last SRT, the
N-RTC calculates the concentration of nitrifiers in the activated
sludge. This concentration is required to determine the DO set point.
If the calculated concentration is higher than the MAX NITRIFERS
CONC., the MAX NITRIFERS CONC.. will be used to determine the
DO set point.
]%]
MODEL CORRECTION FACT.
This factor can be used on order to fine tune the DO concentration
calculated by the model (feed forward part of the N-RTC).
SUBSTIT. DO FOR MODEL
If there is a failure in any of the input signals (NH4-N, TSS, Flow) the
N-RTC will apply the this DO feed forward set point for all further
calculation
[mg/L]
NH4-N SETPOINT
Desired set point of the NH4-N concentration effluent aeration
[mg/L]
Содержание RTC103 N-Module
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Страница 6: ...6 Table of Contents ...
Страница 14: ...14 General Information ...
Страница 20: ...20 Installation ...
Страница 54: ...54 Maintenance ...
Страница 56: ...56 Troubleshooting ...
Страница 58: ...58 Replacement parts and accessories ...
Страница 62: ...62 Warranty and liability ...
Страница 64: ...64 MODBUS address setting ...
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