ATB PUROO User manual

For a world with clean water
PUROO®/ PUROO®Complete
Operating Instructions

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 3 from 28
Contents
Functional description PUROO®.................................................................................................. 4
Functional description PUROO®Complete .................................................................................. 6
Control unit ATBcontrol®1
General and safety information ............................................................................................... 8
Equipment criteria ................................................................................................................... 8
General notes on operation..................................................................................................... 9
Assembly control unit .............................................................................................................. 9
Commissioning ....................................................................................................................... 10
Main menu ............................................................................................................................. 11
Logbook.................................................................................................................................. 11
Settings................................................................................................................................... 12
Service Mode.......................................................................................................................... 13
Manual Mode .......................................................................................................................... 15
Info.......................................................................................................................................... 15
Date / time .............................................................................................................................. 15
Language................................................................................................................................ 15
Error reset............................................................................................................................... 16
Appendix
Connection Board ................................................................................................................... 16
Potential-free contact .............................................................................................................. 17
Technical data......................................................................................................................... 17
Error messages....................................................................................................................... 18
UVS®....................................................................................................................................... 19
List of the pre-programmed parameters .................................................................................. 20
Info about the PUROO®Complete aeration settings ............................................................... 21
Notes on scheduled maintenance ........................................................................................... 23
Desludgement specifics PUROO®Complete........................................................................... 24
EC Declaration of conformity................................................................................................... 25
Dear Customer,
at this point we would like to thank you for the trust which you have shown in us by the purchase of
this product.
Please take a few minutes to read through this operating instruction closely and carefully. Only in
this way is a secure and fault-free operation ensured.

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 4 from 28
Functional description PUROO®
The wastewater treatment plant functions according to the activated sludge principle in the
impounding process (SBR process). With this the pollutants are taken out of the wastewater by
floating micro-organisms (activated sludge) and converted into biomass.
The wastewater first reaches the coarse interceptor, which is connected with the biological stage
through an opening in the dividing wall. The undissolved matter settles in the coarse interceptor
before the pretreated water reaches the aeration stage through an overflow baffle. The opening in
the dividing wall causes the water level in the complete plant to be set at the same level. Thus the
complete surface area of the plant is used as buffer.
The cyclic treatment process of the plant is controlled by water level. With an average water
consumption, 1-3 cycles per day take place. A floating valve placed in the aeration stage directs
the air either to the aeration facility (membrane tube aerators are at the bottom of the tank) or to
the higher located compressed air elevator.
With low water level, the aeration stage is stirred and aerated by the input air. Following
appropriate water inflow the valve switches with a defined water level HWmax to the compressed air
elevator for the conveyance of the water. The compressed air elevator is connected to a
combination vessel (recirculation, sampling).
The switching of the valve is registered by a level switch, through which the settling phase is
initiated. The first flush with the conveyance is retained by the combination vessel and is fed into
the primary treatment as sludge return feed.
During the 60 minute settling phase further conveyance surges for sludge recirculation can take
place depending on the system.
Following the ending of the settling phase the compressed air elevator is again cleaned through
several short conveying surges using treated wastewater before the actual clean water removal is
applied. With the removal of clean water, the water level is lowered to the minimum water level

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 5 from 28
HWmin defined via the floating valve, and the float valve is switched again to aeration. This is again
registered by the level switch.
In case the minimum water level cannot be achieved within a preset time, an alarm is activated and
the program changes into emergency operation in which, within ca. 1 hour, a shortened program
sequence takes place.
The pretreated wastewater which is transferred to the biological stage during the clean water
removal is fed into the lower area of the tank in which the sedimented activated sludge is located.
There, at this point in time, treatment processes are already taking place under anoxic conditions.
Through the special arrangement of the overflow baffle a situation is achieved whereby the
wastewater flowing in has no influence on the quality of the treated water in the clean water zone.
Regulation can be adjusted to the respective requirement. With commissioning the plant is set to
the maximum number of connected persons. A change of this setting is not necessary with short-
term over- or underloading.
If no or only so little water flows in over a period of more than 48 hours following a removal of
clean water that the plant remains below the maximum water level, the plant goes into economic
mode. The aeration time is reduced such that the micro-organisms have sufficient oxygen
available to survive. With renewed rise of the water level to the maximum water level the plant to
normal operation following removal of the clean water.

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 6 from 28
Functional description PUROO®Complete
The wastewater treatment plant functions according to the activated sludge principle in the
impounding process (SBR process). With this the pollutants are taken out of the wastewater by
floating micro-organisms (activated sludge) and converted into biomass.
The wastewater reaches the first of at least two chambers. The chambers are connected by
openings in the dividing wall. This ensures that the water level is the same throughout the plant.
The total surface of the plant is used as a buffer. All chambers are aerated.
The cyclic treatment process of the plant is controlled by water level. With an average water
consumption, 1-3 cycles per day take place. A floating valve placed in the aeration stage directs
the air either to the aeration facility (membrane tube aerators are at the bottom of the tank) or to
the higher located compressed air elevator.
With low water level, the aeration stage is stirred and aerated by the input air. Following
appropriate water inflow the valve switches with a defined water level HWmax to the compressed air
elevator for the conveyance of the water. The compressed air elevator is connected to a
combination vessel (recirculation, sampling).
The switching of the valve is registered by a level switch, through which the settling phase is
initiated. The first flush with the conveyance is retained by the combination vessel and is fed into
the first chamber.
Following the ending of the settling phase the compressed air elevator is again cleaned through
several short conveying surges using treated wastewater before the actual clean water removal is
applied.

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 7 from 28
During the clear water discharge, treated waste water flows from the front area of the tank into the
last chamber and on to the suction area of the compressed air elevator. Any sludge contained will
settle again on the way to the suction area of the air lifter and has no influence on the discharge
quality.
With the removal of clean water, the water level is lowered to the minimum water level HWmin
defined via the floating valve, and the float valve is switched again to aeration. This is again
registered by the level switch. In case the minimum water level cannot be achieved within a preset
time, an alarm is activated and the program changes into emergency operation in which, within ca.
1 hour, a shortened program sequence takes place.
Regulation can be adjusted to the respective requirement. With commissioning the plant is set to
the maximum number of connected persons. A change of this setting is not necessary with short-
term over- or underloading.
If no or only so little water flows in over a period of more than 48 hours following a removal of
clean water that the plant remains below the maximum water level, the plant goes into economic
mode. The aeration time is reduced such that the micro-organisms have sufficient oxygen
available to survive. When the water level rises again to the maximum water level, the system
returns to normal operation after clear water discharge.

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 8 from 28
atbControl®1 control unit
General and safety information
With employment in accordance with regulations there are no hazards whatsoever emanating from
the equipment. Nationally applicable specifications and technical data are to be observed!
If the control unit is used for other applications without express approval of the firm ATB WATER
GmbH and/or the following safety notices are disregarded, this can lead to malfunctions or defects
in the plant. In this case any liability is excluded. Modifications to the equipment are not permitted
and lead to loss of claims for warranty.
Do not operate any equipment which indicates a malfunction, has been dropped or has been
damaged in any way.
Equipment criteria
•Microprocessor controlled
•Voltage breakdown detection (UVS)
•Comprehensive logbook documentation
•Simple and rapid operation
•Times for all values completely pre-programmed
•Arbitrary parameter settings
•Low power consumption
•Ready for plug-in
•Potential-free contact for an additional alarm facility
•Optical and acoustic alarm signalling
Graphic display
3 short-stroke
keys for operation
Connection box
for compressor
Mains connection
Mechanical circular
connector for float
switch
IP 54 spray water
protection
Operation LED
(blinks green)
Defect signal LED
(red)

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 9 from 28
General notes on operation
The operation of the control unit takes place via three short-stroke keys. By pressing a key the
display lighting is switched on (lapses if no key is actuated within 5 minutes).
Key functions:
↑↓ Scroll up and down / menu selection
OK Switch the cursor to the figure, which is to be changed / input value is saved / select menu
point / menu setback.
With temperatures below 0°C severely limited function of the LC displays is to be reckoned with.
Assembly of the atbControl®1 control unit
The control unit is already assembled prefabricated in the control cabinet for wall-mounting or in
the open-air cabinet.
Only the power plug has to be plugged into a prepared isolated ground receptacle (wall mounting)
or the feeder connected to the designated isolated ground receptacle in the open-air cabinet.
Plug in the power plug of the compressor and of the float switch into the appropriate sockets on the
control unit.
CAUTION! Before opening the control unit this must be disconnected from the
mains supply. Work on opened equipment may be carried out exclusively by
qualified skilled electricians!
As one is concerned with electrical plant it is essential that a separate B16
fuse and a (separate) 30 mA upstream earth leakage circuit breaker (ELCB)
are provided!
Attention is to be paid to the correct laying of the protective earth conductor up to
the earthing of the building.

Operating Instructions PUROO®/ PUROO®Complete
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0271 / Status: 08.10.2021 / Page 10 from 28
Commissioning
Basic settings are carried with the first commissioning. With the input of plant values all important
parameters are preset. However, we recommend to check the parameters und Settings once again
following commissioning.
Select the desired language for the menu management display using the OK
and ↑↓ keys and confirm with OK. The following languages are available:
German, English, French, Spanish, Swedish and Dutch.
Through the input of an access code it is ensured that the commissioning is
carried out by a specialist.
Enter the six-figure code number using OK and ↑↓ and confirm with OK.
Enter the date (Indicator = DD.MM.YY) and time (Indicator =
HH:MM:SS) using OK and ↑↓ and confirm with OK. Important for
the correct inputs in the logbook.
Select the PUROO®plant type using OK and ↑↓ keys.
Select the plant values using OK and ↑↓ and confirm with OK
(important for the selection of preset parameters)! The
parameters for 20 and 24 PT are to be taken from the table on
Page 16 and are to be entered manually.
Using OK and ↑↓ enter the serial number which can be found on the
PUROO®(not that of the control unit!) and confirm each number with OK.
Please note that the serial number is to be entered right-aligned.
Have you made an incorrect input? Commissioning can be repeated by
selecting NO and OK.
If the inputs are correct confirm with YES and OK.
Changeover to the info indicator follows. Displayed are the selected PT
number, the software version, time and serial number of the PUROO®.
With this the commissioning is completed and the PUROO®can start working. Should, in the
course of time, a requirement for a modification of the settings arise then specialists have the
opportunity to carry this out in the service mode.
After ca. 1 minute the info indicator changes over to the status indicator. By pressing ↑↓ you,
however, have the opportunity to change back to the info indicator or to the main level