Uponor WehoPuts Series User manual

WehoPuts 5–10
MINIATURE
WASTEWATER
TREATMENT PLANTS
INSTALLATION AND
OPERATION MANUAL
9/2014

Contents
1. WehoPuts miniature wastewater
treatment plant – general ....................................3
1.1 General........................................................................................ 3
1.2 Operational safety...................................................................... 3
1.3 Foreign material and debris in wastewater................................3
1.4 Service work................................................................................ 4
1.5 Treatment process...................................................................... 4
1.6 Technical data............................................................................. 5
1.7 Equipment specification............................................................. 6
2. Treatment plant installation...........................7
2.1 Transport, handling and storage................................................ 7
2.2 Planning and choice of treatment plant location ..................... 7
2.2.1 Planning...................................................................................8
2.3 Installation.................................................................................. 8
2.3.1 Before installation ................................................................... 8
2.3.2 Digging trench ........................................................................8
2.3.3 Anchoring and installation of treatment plant .....................9
2.3.4 Making pipe connections...................................................... 10
2.3.5 Assembling of ventilation pipe and signal lamp................... 11
2.3.6 Electrical connections ........................................................... 11
2.3.7 Constructing ground frost isolation ..................................... 12
2.3.8 Filling and locking ................................................................. 12
3. Startup ..............................................................13
3.1 Installation inspection .............................................................. 13
3.2 Releasing pumps ......................................................................13
3.3 Filling chemical container ........................................................ 13
3.4 GSM modem initialization........................................................ 14
3.4.1 SIM card installation..............................................................14
3.4.2 Determining GSM number ....................................................14
3.5 Turning on treatment plant...................................................... 14
3.6 Sludge removal using a vacuum truck .....................................14
3.7 Sludge removal using sludge bags........................................... 14
4. Treatment plant management ......................15
4.1 Treatment plant control unit.................................................... 15
4.2 Process monitoring ..................................................................15
4.3 Operation settings ...................................................................16
4.4 Acknowledging alarms and reminders..................................... 17
4.5 GSM remote management ....................................................... 17
5. Operation and maintenance..........................18
5.1 Treatment plant operation monitoring .................................... 18
5.2 Filling chemical container ........................................................ 18
5.3 Sludge removal ......................................................................... 19
5.3.1 Sludge removal with sludge bag ........................................... 19
5.3.1.1 Sludge bag composting...................................................... 19
5.3.2 Sludge removal using a vacuum truck..................................20
5.3.2.1 Settling test........................................................................21
5.4 Sampling .................................................................................. 21
5.5 Treatment plant pH adjustment ..............................................22
5.5.1 Lime type...............................................................................22
5.5.2 Dosing and monitoring .........................................................22
6. Faults and malfunctions ............................... 23
6.1 Alarms and reminders...............................................................23
6.2 Activities during disturbances .................................................23
6.2.1 Faulty equipment ..................................................................25
6.2.2 Testing equipment using service socket ..............................25
6.2.3 Equipment diagnostics and testing via PLC.........................25
6.3 Electrical outage ......................................................................25
6.4 Cleaning process malfunctions ................................................25
6.4.1 Odours ...................................................................................25
6.4.2 Foaming.................................................................................25
6.4.3 No sludge collected in sludge bag........................................25
7. Se r vi ce ...............................................................26
7.1 Periodic service .........................................................................26
7.2 Service instructions for pumps and level switches..................26
7.2.1 Transfer pump cleaning .........................................................26
7.2.2 Cleaning of emptying pump and sludge pump ...................27
7.2.3 Cleaning of level switches .....................................................28
Operation journal ............................................... 29
2

This manual applies to models WehoPuts 5 and 10 (soware version 5.X)
1. WehoPuts miniature wastewater
treatment plant – general
1.1 General
The WehoPuts miniature wastewa-
ter treatment plant is a bio-chemical
domestic wastewater treatment
system intended for year-round use.
All wastewater is directed into the
treatment plant without separate
pre-treatment. Treated water then
flows or is pumped to the discharge
point.
Further information on the point
and manner of discharge must be
received from the local environmen-
tal authorities before installation.
The WehoPuts treatment plant
has been designed to suit a certain
number of persons and quantity of
wastewater (calculated based on
150l/person/day).
If household water is taken from a
private well, its quality must meet
the general recommendations to
secure good operation of the treat-
ment plant.
Information on the function of the
WehoPuts treatment plant is avail-
able from the display in the plant
control unit and the signal lamp on
the machine room ventilation pipe.
NOTE! The signal lamp must be
monitored carefully. When the signal
lamp is on, the treatment plant is
functioning normally. When the
light is flashing or has gone out, the
treatment plant has a malfunction
and the message on the control unit
display must be checked immedi-
ately!
To simplify plant operation
monitoring, the WehoPuts 5 and 10
treatment units oer an optional
GSM modem allowing for treatment
plant remote monitoring using GSM
phones. The GSM modem must be
specified when ordering the treat-
ment plant, as well as the need to
use more than one GSM phone.
The WehoPuts treatment plants
have a 2-year warranty starting
from the purchase date. The war-
ranty covers structural, manufactur-
ing and material errors reported to
and verified by the manufacturer.
Detailed warranty conditions can
be found in the warranty certificate
supplied with the treatment plant.
MODEL
MAXIMUM LOAD
m3/day
MAXIMUM AMOUNT
OF PERSONS
WehoPuts 5 0.75 5
WehoPuts 10 1.5 10
Table 1. WehoPuts treatment plant cleaning
capacity
1.2 Operational safety
The tank lid must always be care-
fully locked.
Only the electrical con-
nections and cleaning
process control proce-
dures specified in the installation
and operation manual may be
performed during maintenance.
When filling the chemical container
and handling the chemical pump,
the corrosiveness of the chemicals
used (pH 2) must always be taken
into account. Therefore, special
protective equipment such as rub-
ber gloves and protective glasses
must be worn. The safety data
sheet must be studied in advance.
The treatment plant is equipped
with device-specific automatic
fuses and ground fault switches.
Treatment plant grounding is done
through the building’s main distri-
bution board.
NOTE! The control box casing may
only be opened by a professional
electrician.
1.3 Foreign material and debris
in wastewater
Normal household wastewater,
such as domestic water and toilette
flushing water, is directed into the
treatment plant.
Debris washed down with waste-
water may clog or damage the
treatment plant pumps and stop
the entire treatment process. To
ensure the disturbance-free op-
eration of the plant, the following
materials and items must not be
flushed down with wastewater:
• bottle caps and other small
metal items
• cigarette butts
• condoms
• cotton buds
• cotton wads
• hand tissues
• leover food
• matches
• medicine
• nappies
• oil
• plastics
• petrol
• rubber
• sanitary towels
• sand
• snu
• soil
• solvents
• tampons
• waste
• other material that may clog
pipes, pumps or the treatment
plant
NOTE! To prevent the pumps from
clogging, we recommend floor drain
filters.
3

1.4 Service work
The periodic service and failurere-
lated service of the treatment plant
are carried out by the manufac-
turer or a manufacturer-authorised
service partner. The owner of the
property may also carry out guided
service procedures.
The periodic service is recom-
mended to be carried out once a
year. The maximum service interval
is 2 years.
1.5 Treatment process
The WehoPuts treatment plant
works on a batching principle SBR
(Sequenced Batch Reactor), treat-
ing a certain batch of wastewater
at one time. The treatment is based
on a bio-chemical process, where
the microbes living in the activated
sludge decompose the organic mat-
ter in wastewater, while the chemi-
cal deposits the phosphorus.
The cleaning process is divided into
dierent stages: aerating, chemical
feed, settling and removal. These
stages are carried out in sequence
inside the process tank. Control of
these stages is carried out automat-
ically through the control unit. Aer
an electrical outage for example,
the treatment plant will automati-
cally resume the process from the
interrupted stage.
Process steps
1. Wastewater batch
accumulation
Wastewater is directed into the
storage tank without separate pre-
treatment. From the storage tank,
the wastewater is pumped into the
process tank. Once the wastewater
level in the process tank reaches the
start-up level, the process starts.
2. Aerating and chemical feed
The compressor in the machine
room aerates the wastewater.
Aerating promotes biological
decomposition and the oxidation
of nitrogen compounds into
nitrate. At the end of the aerating
phase, a chemical is added into the
wastewater. Phosphorus compounds
are separated from the wastewater
using the chemical.
3. Nitrogen removal and settling
Aerating is stopped and sludge
slowly settles to the bottom of the
process tank. The treated, nutrient-
free water gathers on top. The
nitrate-form nitrogen is reduced to
nitrogen gas.
4. Removal of treated water and
residue sludge treatment
Aer settling, the treated water is
then discharged. Residue sludge is
regularly transferred to the sludge
bag. Sludge may be composted with
other organic household waste.
Alternatively, it can be removed
using a vacuum truck.
1. 2.
3. 4.
4

1.6 Technical data
TECHNICAL DATA WEHOPUTS 5 WEHOPUTS 10
Cleaning capacity m3/day 0.75 1.5
Batch size m³ 0.250 0.500
Weight kg 325 400
Measures mm
- length A 2200 2400
- width B 1200 1400
- height C 2250 2400
Connections mm
- inlet 110 110
- inlet height from ground level 875/1105 920/1160
- outlet 110 110
- outlet height from ground level 1335 1400
Electricity 230V 230V
Distribution board main fuse 1x10A 1x10A
Power supply cable MCMK 2x1.5/1.5 MCMK 2x1.5/1.5
Annual power consumption kWh max 357 max 528
Size of chemical tank l 50 50
Chemical consumption l/m30.2 0.2
GSM remote monitoring optional optional
Sludge collection system standard standard
WehoPuts treatment plants meet
the requirements of standard
EN 12566-3 (CEN 2009)
5

1.7 Equipment specification
23
24
24
25
4
1
8
9
10
11
12
13
15
16
AB
2
3
5
14
7
6
17
A- storage tank, B- process tank
1. Sludge basket
2. Inlet pipe connection
(Alternative 2)
3. Inlet pipe connection
(Alternative 1)
4. Transfer pump
5. Storage tank level switch
6. Overflow pipe connection
7. Machine room ventilation
8. Flushing tank
9. Chemical tank
10. Aerating plate
11. Sludge pump
12. Emptying pump
13. Process tank level switch
14. Outlet pipe connection
15. Anchor rod
16. Anchor plate
17. Overflow level switch
18. Chemical tank filling pipe
19. Chemical level switch
20. Compressor
21. Control unit
22. Chemical pump
23. Isolation lid
24. Signal lamp frame
25. Signal lamp
18 19 20 21 22 23
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2. Treatment plant installation
For transport, anchor rods (2 pcs), anchor plates (8 pcs) have been
attached to the sides of the treatment plant. The ventilation pipe is
packed in to the sludge basket.
2.1 Transport, handling and
storage
NOTE! Treatment plants must
be transported and stored in an
upright position
Transfer and sludge pumps have
been attached on supports for
transport and installation. During
commissioning, the pumps are
lowered (section 3.2).
The following items are packed
into the sludge basket inside the
treatment plant during transport:
• chemical can
• the lower part of the ventila-
tion pipe
• signal lamp
• ventilation pipe
• sludge bags
• sludge bag fixing ring
• settling test measuring glass
2.2 Planning and choice of
treatment plant location
A plan is required for wastewater
system construction. It is
worthwhile to contact the designer
at an early stage,since the plan
must be presented as part of the
permit application when building or
renewing a wastewater system.
Planning requires competence
and it is best le to water service
experts who will carry out the
necessary analyses on-site. The
requirements for plan contents
are stated in the Wastewater Act.
When starting to plan, it is impor-
tant to find out any municipality
environmental protection regula-
tions.
In addition to wastewater legisla-
tion, regional requirements can be
a significant factor in aecting the
planning.
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WehoPuts 10
WehoPuts 5
2.2.1 Planning
Issues to note when planning
• A location is chosen taking
into account treatment plant
maintenance (i.e. not inside
recreational areas)
• Location must not be inside a
pit gathering surface water
• Determining electrical and
drain connections and pos-
sible need for pumping.
• Treatment plant discharge and
overflow must be arranged so
that no backflow to the plant
can occur
• The discharge and overflow
pipes are separately led into
the discharge location.
• Freezing and ground frost
damage are prevented using
insulation if necessary.
• Storm water and irrigation
water must not be drained
into the treatment plant.
• The drain is ventilated to the
roof of the building.
• If necessary, a discharge plug
is installed to prevent rodents
from entering the discharge
pipe.
• Treated water discharge
location is chosen taking into
account the local conditions.
• Discharge water may only be
soaked if the absorption capa-
bility of the soil is sucient.
• The absorption well or area
is measured based on the
amount of water absorbed
at one time, and a bypass
option is arranged in case of
clogging.
• It is preferable to install an
inspection pipe in front of
the treatment plant. If the
discharge pipe is long, an
inspection pipe should also be
installed.
NOTE! Ensure discharge and over-
flow pipe functionality in winter
conditions
2.3 Installation
2.3.1 Before installation
• Before installation, verify that
the tanks or treatment plant
equipment have not been
damaged during transport.
• Remove the anchor package
from the sides of the plant.
• Take out the parts and sup-
plies packed inside the plant.
2.3.2 Digging trench
• Pay attention to work safety
when digging the trench, and
leave sucient working room
around the treatment plant.
• Level and mechanically
compress the bottom of the
trench using sand or gravel
(bedding level min. 150mm).
• Ensure that the bottom of the
trench is level under the tank
• Make subsurface drains in
trenches dug inside clay or
bedrock.
Overflow pipe 110
Overflow pipe Ø110
Outlet Ø110
Inlet alternative 2
Inlet alternative 1
Overflow pipe
Ø 110
Overflow pipe Ø110
Outlet Ø110
Inlet alternative 2
Inlet alternative 1
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WehoPuts 5
WehoPuts 10
WehoPuts 5
2.3.3 Anchoring and
installation of treatment plant
The treatment plant is delivered
with a ready-made anchoring
package, including 8 anchoring
plates and 2 anchoring rods. The
anchoring rods are installed before
the treatment plant is lowered into
the trench. Anchoring is especially
important in locations where the
soil contains mostly clay or high
groundwater levels.
• Lower the treatment plant
into the trench using the
liing rings.
• Install the anchor plates
(4 pcs/rod) on the rods inside
the trench.
• Fill in the trench in layers,
constantly compacting (grain
size max 20mm) to the level
of the inlet spigot.
WehoPuts 10
• Install the anchor rods
through the holes at the
bottom of the tank (see
picture).
WehoPuts 5
• Install the anchor rods
through the holes in the
treatment plant bottom ribs
on each side of the unit.
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2.3.4 Making pipe connections
• Inlet pipe Ø 110mm
• Overflow pipe Ø 110mm
• Cleaned water discharge pipe
Ø 110mm
Inlet spigot connection
• Connect the inlet pipe
(110mm) to the lower inlet
which has been pre-opened.
When using the upper spigot,
plug the lower spigot tight.
• The upper spigot can also
be used as an overflow pipe
in e.g. properties with a
basement.
Overflow pipe and discharge
pipe connection
• Fill the trench in layers to the
level of the overflow pipe and
discharge pipe connection
• Connect the overflow pipe
(110mm) to the overflow
spigot behind the treatment
plant.
• Run the overflow pipe to the
discharge point stated in the
plan.
• Install the discharge pipe
(110mm) to the outlet spigot.
• Run the discharge pipe to the
discharge location stated in
the plan.
NOTE ! Do not combine the dis-
charge and overflow pipes.
10