ATB PUROO User manual

PUROO®
Installation Instructions

Important information for consumers in the EU
Disposal instructions for batteries and rechargeable batteries
Every consumer is legally obliged to return all used batteries and
rechargeable batteries according to the Battery Ordinance (Directive
2006/66/EC). Disposal in the household waste is prohibited. Since
batteries and rechargeable batteries are also included in the delivery of
products from our range, we would like to point out the following:
Used batteries and rechargeable batteries do not belong in the
household waste, but can be handed in free of charge at the public
collection points of your municipality and everywhere where batteries
and rechargeable batteries of the respective type are sold.
Furthermore, the end user has the option of returning batteries and
accumulators to the retailer from whom they were purchased (statutory
take-back obligation).
Disposal of electronic equipment
Due to the European Regulation 2012/19/EU, your electronic device
must not be disposed of with normal household waste! We will dispose
of your electrical equipment in a professional and environmentally
responsible manner. This service is free of charge, not including
transport costs. This service only applies to electrical appliances
purchased after 13.08.2005. Send the appliance you want to dispose
of to your supplier free of charge.

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 3 from 24
Content
Page 4: Brief description of the plant
Page 5: Scope of delivery
Page 6: General information on installation
Page 7: Further prerequisites for the secure operation of the plant
Page 8: Installation of the plant components – overflow baffler
Page 9: Installation of the plant components – preparation of the pipe set
Page 10: Installation of the plant components – installation of the plant
Page 11: Detailed photographic instruction (example Graf-tank)
Page 15: Short instruction for installation in Aplast-tank
Page 17: Commissioning of the control system
Page 18: Installation sketches
Dear customer,
at this point we would like to thank you for the trust which you have shown with the purchase of this
product.
On the following pages you will find everything necessary about the installation, operation and the
maintenance requirements of your PUROO® small wastewater treatment plant.
The general information and installation conditions are presented on the first pages with
representations of the PUROO® components in the concrete tank. The details for the installation
can be identified using an example of an installation in a plastic container (Type: Graf).
Please observe that the careful installation of the wastewater treatment plant is very important for a
good treatment performance.

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 4 from 24
Brief description of the plant
The water arrives in the pre-treatment stage [1] of the plant for mechanical preliminary purification.
The pre-treated wastewater is conducted via the overflow baffler [2] in to the bottom area of the SB
reactor [3] . In order to avoid possible turbulence of the activated sludge, during the settling phase
or of the clarified water removal, the outlet of the overflow baffler [4] is directed towards the tank
outer wall.
On reaching HWmax the float valve [5] switches over and the settling phase/return sludge feed is
initiated. Short lifting strokes transport the excess sludge into the pre-treatment stage [1] or
subsequently flush the air lift pump [6] using treated wastewater.
With the clarified water removal the outlet of the buffer tank in the direction of the pre-treatment
stage [1] is closed and the treated wastewater is transported via the purged sampling section of the
buffer tank [7] into the outlet.
The overflow baffler is turned in the opposite direction in the intake area [8] of the air lift pump [6],
thus avoiding the influencing of the quality of the discharged clarified water through overflowing
untreated wastewater.
On reaching HWmin the float valve switches over to aeration and a new cycle starts.
1 Preliminary purification
2 Overflow baffler
3 SB reactor
4 Outlet
5 Float valve
6 Air lift pump
7 Buffer tank
8 Intake area
1 7
2
5
8
4
6
3
3

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 5 from 24
Scope of delivery
Pos Designation
Spezifikation
Poly
1-10
0020 0005
¼ chamber
1-10
0020 0001
½ chamber
1-16
0020 0003
1 ATBcontrol 1 Connect on mounting bracket
1
2 Compressor JDK-S-80/100 80 100
3 PUROO® TANK 1
4 PUROO float valve complete unit 1
5 PU-tube diffuser 570/820 mounted 1x570 1x820 2x820
6 Overflow baffler PUROO® 1
7 Clearwater suction pipe 1
8 ATB-airlift complete unit standard 1
9 Clearwater pipe set PUROO® 1
10 Compression fitting overflow baffle
r
[K] M K
Mounting bracket PUROO® [M]
11 Mounting parts PUROO® 1-16 PE 1
12 Fabric hose DN16 clear 18 m coil 1
13 Operating instructions PUROO® 1
14 Installation instructions PUROO® 1
1 2 3
4
5
10
12
8
7
6
9

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 6 from 24
General information on installation (using the example of a
concrete tank)
- Partition wall between primary treatment /biology stage must be sealed.
- Tank must be checked for watertightness.
- Cover with ventilation openings or alternative aeration of the plant must be available.
- Empty DN 100 pipe for the control system is laid (max. separation 10 m).
- Max. separation lower edge of discharge pipe to upper edge of partition wall 0.35 m.
(With larger separation the delivery rate of the air lift pump is possibly insufficient.
For queries please call by phone).
- Maximal thickness dividing wall 10 cm
- The opening for the charging of the SB reactor (Ø > 50 mm) must be attached 25-30 cm below
the discharge pipe (below HWmin).
Upper edge partition wall
Lower edge discharge pipe
Upper edge
through
passage
overflow
baffler
< 35 cm
25 – 30 cm

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 7 from 24
Further prerequisites for the secure operation of the plant
- Empty pipes are to be at least DN 100.
- Cables and hoses in the chambers are to be so mounted that they do not hinder the sludge
disposal.
- Freely moving cables and hoses should not be capable of being damaged by fixed objects.
- A fully functioning ventilation and aeration must be ensured. Normally this is effected by the roof
ventilation and the cover with ventilation openings in the (last) tank or air ventilation in the outlet
pipe. The operational capability is to be documented and verified.
- With underground pipes DIN EN 752 is to be observed and their watertightness is to be verified
in accordance with DIN EN 1610. All pipes (also empty pipes) are to be laid with a minimum
incline > 1% to and from the wastewater treatment plant.
- The pipes are to be sealed at all connections of the wastewater treatment plant. Hoses must be
laid free of kinks and, as for the openly laid pipes, so fixed using clips and und supports that, with
correctly executed work on the plant, they cannot be damaged.
- Inlet and outlet pipelines / openings are to be designed in such a way that blockages and/or
constriction of the free cross-section are not possible.
- With single chamber primary treatment the inlet must be fed through an attached bend opposed
to the overflow baffler in order to prevent a transfer of fibrous materials.
- The discharging of inflammable or other substances which can lead to the formation of an
explosive atmosphere is prohibited (see also Notes on Disposal in the Operating Manual).
- The empty pipe for the control system is to be sealed gastight.
- With the laying of electrical lines the DIN VDE Instructions are to be observed.
- The commissioning of the plant is to take place promptly following the installation or after the first
discharge of wastewater.
- With longer or final decommissioning the plant is to be emptied completely and is to be cleaned.
PUROO
®
- Tank
Sampling section
(incl. suction hose)
AQUAswitch® Lifting body

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 8 from 24
a
b
c
d
Installation of the plant components – overflow baffler
The overflow baffler is delivered pre-assembled and is to be pieced together in the tank.
The T-piece [a] with a 90° (2x45 °) bend, attached to the small end, is pushed from the primary
treatment stage through the opening of the partition wall. The bends must be turned into the far
side from the inlet.
With concrete tanks, push the connection [b] from the SB reactor onto the pushed-through pipe
end and secure the connection to the partition wall using a screw. If the plate of the connection sits
flush on the partition wall it is not necessary to seal the opening.
With poly-tanks, the baffler is fed through a lip-seal in the partition wall and does not require to be
attached using the connection.
Attach the T-piece [c] in the SB reactor to the fixed pipe and feed the baffler with the extension to
the bottom of the tank towards a tank wall (separations see diag. below).
The connections must be secured against turning using screws!
Openings above the partition wall
(if required, lengthen pipe!)
Baffler in the area of the
edge of the tank
Separation
each
5 – 20
cm

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 9 from 24
Installation of the plant components – preparation of the pipe set
The pipe set incl. buffer tank, is supplied as prepared, flexible plug-in set, which is put together with
little effort before installation.
With the pipe set, as a rule, all standard septic tanks according to DIN 4261 Part 1 with partition
wall can be equipped up to 16 PT. The appropriate technical wastewater calculation is to be
followed.
The pipe set is supplied for partition wall heights > 1.67 m.
With smaller partition wall heights, the pipe set must be shortened at two positions (see marking
diag. left) and the flexi-hose shortened by the difference between 1.67 m and the actual partition
wall height. The suction pipe is to be shortened by a max. of 31 cm (see table below)!
Before assembly remove the transport retaining band on the outlet of the buffer tank!
The pipe set is to be plugged together before installation as shown in the diag. and the pipe
connections are to be secured with a screw.
Pipe set reduction table
(Graf and Aplast tanks see following pages)
Partition wall
height [cm]
Reduction feed
pipe + flexi-hose
[cm]
Reduction
suction pipe
[cm]
160 7 7
150 17 17
140 27 27
130 37 31
120 47 31
The minimum partition wall height is 1.20 m.
Intermediate measurements are to be interpolated.
Suction
pipe
Feed-
pipe

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 10 from 24
Installation of the plant components – Installation of the plant
After installing the overflow baffler secure the assembled pipe set to the partition wall using the
5x70 mm screws. The height of the outlet is relevant for the position of the float valve bracket.
The bracket must be so adjusted and secured that the upper edge of the bracket (HWmax) is 5 cm
below the outlet pipe or inlet into the attached bend. (Tip: 5 cm = height of spirit level)
After securing the float valve, check that the flexi-hose moves freely and the float valve moves
freely between lower and upper switching point!
Connect the buffer tank to the outlet of the tank. Arrange the outlet so that, with pumping out, no
water can run back (e.g. attach a 30° bend).
Connect the hose from the air lift pump and the pipe aerators together with the quadruple hose
distributor (diag. above) and lead the air hose together with the float switch lead to the control
system.
The suction pipe can also be turned depending on the position of the overflow baffler (see diag.).
Hose distributor
HWmax
(Air lift pump ON)
HWmin
(Air lift pump OFF)
Upper lip of suction pipe
must be lower than
HWmin!
Connection of
the flexi-hose
15 cm
HP = 5 cm

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 11 from 24
Detailed photographic instruction (using the example of Graf poly-tanks)
The overflow baffler is placed in the
ATB SBR tank directly alongside
the existing emergency overflow.
Deactivate the existing emergency
overflow using a bend which is
fitted pointing upwards.
Shorten the overflow baffler at the
marking for installation in Graf
tanks (see diag. above).
Assemble the baffler in the tank
and secure this to avoid rotation
using the available screws.
Rotate the bend on the primary
treatment side in the opposite
direction to the inlet in order to
achieve an effective retention of
coarse materials.
Rotate the bend near the bottom on
the biological side in the direction of
the outer wall (see markings diag.
right).

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 12 from 24
Measuring the height of the partition wall.
The pipe set, with partition wall heights smaller than 1.66 m,
are shortened (see page 8 and diag. right).
Tank type Height of partition
wall [cm]
Shortening of
feed / suction pipe
and flexi-hose
[cm]
Graf 3750 l 139 31
Graf 4800 l 161 10
Graf 6500 l 187 -
Assemble the pipe set as shown in the diag. right and secure
the sleeve using the inserted screws.
Determine the position of the float bracket on the air lift pump:
the bracket is so secured for height (diag. right), that the upper
edge lies 5 cm below the outlet (see page 9).

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 13 from 24
Fit the air distributor, which can be found in
the assembly material, to the clarified water
outlet and connect this with the connection to
the float bracket.
- Quarter-chamber/poly-half-chamber:
triple distributor
- Half-chamber: quadruple distributor
Before starting the plant remove the transport
locking device on the buffer tank outlet (see
marking top diag.)!
Before starting place the sampling hose
upwards in the tank! Later on in the assembly
this should be secured to the cone for easy
accessibility.
Before installing the pipe set, fit the assembly
bracket on the partition wall.
The bracket must have a separation of 20 cm
to the cone opening on the overflow baffler
side (see diag. centre)!
Place the pre-assembled pipe set on the
assembly bracket and push this on until the
float bracket is in contact with the baffler.
Secure the pipe set to the assembly bracket
using the screws (marking diag. bottom right).
Place the pipe aerator centrally in the
biological stage and lead the air hose behind
the overflow baffler and alongside the combi-
tank to the air distributor.
Thus it is ensured that the air hose does not
hinder the function of the (diag. below
left/right).

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 14 from 24
Using the pipes and bends contained in the
shipment, connect the clarified water outlet to
the drain.
Preferably, place a bend of at least 15° on the
drain and feed the clarified water pipe at least
20 cm into the drain in order to prevent a flow
back of the discharged water.
Place the cone onto the tank.
The inlet to the tank is led into the cone and
with an attached T-piece and DN 110 bend (not
contained in the shipment) is led from the
buffer tank in the direction of the outer wall.
For this the cone is mounted, rotated ca. 45
degrees (see diag. below).
Connect the air hose to the distributor and lead
this, together with the lead to the float switch,
through the empty pipe to the control system.
Close the empty pipe using the plugs supplied
(see diag. centre) and additionally seal the pipe
using, if possible, an airtight material.
Lay the air hose, sampling hose and the lead
to the float switch so that the float valve is not
hindered in its movement!
To lead and secure the above given line and hoses use the white cable clip which is fixed in the
cone (marking diag. bottom).

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 15 from 24
Short instruction for PUROO®-installation in Aplast-tanks
The installation in the tank type Aplast is comparable with the installation of the system in Graf
tanks.
Two separate PUROO® versions (4/6 EW + 10 PE)
are available for the three Aplast tank sizes.
To connect the airlift to the PUROO® tank, a step
pipe (art. no. 20000114) is used here, which
compensates the offset in the lower part of the
dividing wall.
Shorten the flexible hose, feed and suction pipe as follows:
Install the system analogously to the Graf variant
(page 11 ff.).
As standard, a connecting pipe is inserted through
the dividing wall, onto the parts of the overflow baffle
are plugged (for details on mounting the overflow
baffle, see page 10). The connection pipe of the
overflow baffle must be removed first.
For fixing airlift set and PUROO®-tank screw
collars are inserted in the dividing wall (see
illustration on the right and also on the next
page).
Shortening
flexible hose
[cm]
Shortening
feed pipe
[cm]
Shortening
suction pipe
[cm]
30 23 21

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 16 from 24
Place the PUROO on the dividing wall and
fix it with M8 screws in the long holes.
Place the tube diffuser centrally in the SBR
chamber and lead the air hose to the air
distributor in such a way that the function of
the floating valve is not obstructed during
operation (Fig. right)..
Pipe diffuser details:
There are differences in the lengths used
and the alignment of the tube diffusers for
the three tank variants.
4/6 EW variants:
A 570 mm long tube diffuser is placed in a
rib parallel to the divding wall (see marking
above).
With the 10 EW variant, a 1070 mm long
tube aerator is positioned on the tank
bottom in the longitudinal direction of the
tank (marking on the right).
Enlarged spacers are mounted on this tube
diffuser to prevent the membrane for the
contact with the tank bottom.
The tube diffuser should be inserted into the
tank in such a way that the air connection
points is in the direction of the drain. This
allows the aerator to be lowered and aligned
easily from the tank opening.

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 17 from 24
Commissioning of the control system
(To be carried out by skilled personnel only)
Example: Compressor + control system on console
With the selection of the location of the control box bear in mind that direct radiation from
the sun is to be avoided!
Install the control unit either directly to the console on a stable wall or in the cabinet which can be
supplied as accessory (inside cabinet/open air column). The maximum separation between tank
and mounting location of the control unit may not exceed 10 m.
Following the drawing though of the air hose and the float lead the empty pipe is to be closed
airtight using the plugs supplied (see diag. below) and, if required, additionally sealed using
polyurethane foam or mortar!
Socket for
connection of
the control
system
Connection
with earth cable
3x 1.5 mm3
Connection of the air
hose (with angle piece
and 16 mm hose
connector)
Compressor socket
Connecting socket for
float switch

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 18 from 24
Installation in concrete quarter-chamber
water-
level =
constant
SBR
Pretreatment
Inlet
Opening for empty
pipe to control
cabinet (on-site)
Outlet
Z
Cover with
ventilation openings
DI
DA
Pretreatment
A
Hw,max
H
Hw,min
Attention: Important detail!
For plants with enlarged pretreatment (concrete or poly tanks), the water level in the first tank part
must be higher than in the last pretreatment chamber and SBR.
The overflow (opening Ø 100 mm, with floating sludge protection) should be at the level of the
treatment plant outlet.

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 19 from 24
Installation in concrete half-chamber
Z
SBR
Opening for empty pipe to
control cabinet (on site)
Pretreatment
Inlet
Cover with
ventilation openings
H
A
Hw,min
Hw,max
Out l et
DA
DI

Installation Instructions PUROO®
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0276 / Status: 21.06.2023 / Page 20 from 24
Installation in PE two-chamber tank „Type A“
Pretreatment
SBR
Inlet
Outlet