Transcript Slide 1

German Standard (DIN) for Rainwater Harvesting:
technology and products
Ecological and sustainable water management
is a goal of the precipitation water management.
The alternatives to the customary drainage of precipitation water are, among other things,
rainwater harvesting and infiltration, as well as the decentralized retention of rainwater.
A new system technology with new components has been developed for rainwater harvesting in
households and commercial and industrial companies.
The standard for rainwater harvesting was developed taking the generally-recognized rules of
technology for drinking water installations into consideration according to the standard series
DIN1988 and according to DIN EN 1717 and for drainage systems according to the standard series
DIN EN 12056 and DIN 1986.
Requirements on system technology for the planning, installation, operation and maintenance that
have proven themselves in practice are set down in this standard
DIN 1989
Rainwater Harvesting Systems
The standard series DIN 1989 „Rainwater Harvesting Systems“ consists of the following parts:
• Part 1: Planning, Installation, Operation and Maintenance
• Part 2: Filter for Rainwater harvesting
• Part 3: Rainwater Reservoirs
• Part 4: Components for Control and supplemental supply
DIN 1989
Rainwater Harvesting Systems
The standard series DIN 1989-1
„Rainwater Harvesting Systems“
Part 1: Planning, Installation, Operation and Maintenance
This standard applies to systems utilizing rainwater in households and commercial and industrial
companies, as well as in public organizations, in which it is used for flushing toilets, for cooling
purposes, for washing and cleaning systems and for watering green areas, for instance.
Following parts are treated:
Collection Areas, Treatment, Rainwater Reservoirs and Add-On Parts, Process Water Pumps,
Supplemental Feed Systems, System Control Unit, Supplemental Feed Modules, Central Rainwater
Systems and Hybrid Systems, Pipe Systems and Labelling, Seepage of the Overflow Water,
Protection against Backflow, Types of systems and set up possibilities, Design of the Reservoir
Size, Operation, Inspection and Maintenance
DIN 1989
Rainwater Harvesting Systems
The standard series DIN 1989-2 „Rainwater Harvesting Systems“
• Part 2: Filter for Rainwater harvesting
This part lay down the standard and tests for mechanical working filters which are installed
in the supply of reservoirs for rainwater harvesting systems.
There is a multitude of special filters for rainwater harvesting systems that are distinguished
by design, installation position and functional principle (e.g. filter matting , filter screen).
Filters are to be installed in the supply line to the reservoir as a general rule. They keep
foreign material away from the rainwater reservoir that could bring about malfunctions in the
system or make the water quality poorer. Rainfall pipes or central location in front of the
reservoir are possible installation places. Furthermore, filters can be directly located in the
rainwater supply line inside of the reservoir.
DIN 1989
Rainwater Harvesting Systems
The standard series DIN 1989-3 „Rainwater Harvesting Systems“
• Part 3: Rainwater Reservoirs
This part lay down the standard, tests and assessments of conformance for manufactured
monolithic reservoirs, for manufactured multi-parts reservoirs and for reservoirs made on-site.
Rainwater reservoirs are for both the storage and the cleaning of the rainwater.
Reservoirs can be set up both above-ground and below-ground.
The set up location should be chosen in such a way that the stored water is protected
against strong thermal effects, frost and light. The selection of the reservoir has to be done
in coordination with the installation location and the pollution to be expected. Standardized
reservoirs are to be used.
DIN 1989
Rainwater Harvesting Systems
The standard series DIN 1989-4 „Rainwater Harvesting Systems“
• Part 4: Components for Control and supplemental supply
This part lay down the standard and tests for manufactured or made on-site assembly units
for supplemental supply units for reservoirs, for system control units of process water pump and
hybrid units.
Supplemental feed modules consist of a supplemental feed device and a system control unit
and are usually produced in the factory as an assembly.
Process water pumps, the supplemental feed system and the system control unit are combined
in one assembly in the factory into central rainwater systems.
Hybrid containers are used as a preference in larger rainwater harvesting systems.
DIN 1989
Rainwater Harvesting Systems
System Control unit
•The system control unit controls automatically the functioning of the rainwater harvesting
system
•The supplemental feed has to be done via a safety device Type AA (unobstructed free outlet) or
Type AB (free outlet with a non circular overflow) according DIN EN 1717 when drinking water is
used.
•The safety device is to be installed outside of the rainwater reservoir and outside of the entry
shaft (dome).
•For continuous operating, the rainwater harvesting system can also be operated independently
of the rainwater reservoir.
DIN 1989
Rainwater Harvesting Systems
Typical Rainwater harvesting unit
for a normal household in Germany
Rainwater will be used for :
-
toilet flush
washing machines
cleaning
garden watering
The unit has two main components:
1.
Reservoir (here below-ground)
with integrated four cleaning steps
2.
System control unit with
a submersible pump and
a supplemental feed system
1.
2.
3.
4.
5.
6.
Reservoir
Filter
Quiescent supply
Overflow with odor trap
Submersible pump with floating intake
Process water pump with intgrated
free outlet according to DIN 1717 and
system control unit
7. Process water line to toilet flush,
washing machines, cleaning and
garden watering
8. Cable trench for pump cable and water
level recording
9. Pressure line
10. Supplemental feed line
11. Drinking water line
12. Overflow for process water pump
according DIN 1717
Products for rainwater harvesting
special for cleaning rainwater
CLEAN WATER
OUR MISSION
4 cleaning steps
1. Cleaning step
Filter
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations, with
the advantage of very low maintenance.
By using an underground tank, the water is stored in dark and cool
2. Cleaning step
Calmed inlet
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
3. Cleaning step
Overflow siphon
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
4. Cleaning step
Floating pump
intake
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
1. Cleaning step – Filter
1 Down pipe Filters
3P Rainus
3P Leaf Separator grey
Rainwater Filter for down pipes
No more blocked rainwater gutters
where the cleaned rainwater flows
on down into the down pipe! Install
and gullies. Accumulating leaves
and particles are continuously
in the lower section of the
down pipe. Easy to monitor, easy
filtered out. Complete with
reduction sets.
to install, with secure reliable
function. Simple to maintain.
3P Filter Collector grey
3P Leaf Catcher
Durable high quality plastic. Filters
The 3P Leaf Catcher is simply
and collects rainwater for barrels
and tanks. Overflow function.
installed in the down pipe. It filters
out leaves and moss, and collects
Simple installation. Complete with
adapter and reduction sets.
it in a small basket. Install it at a
convenient height for leaf removal
from time to time.
3P Rain Collector with rough filter
The simple 3P Rainwater Collector with large slat filter
collects and filters the rainwater from small roofs for
smaller rainwater tanks. Fits down pipes made of
Copper,
Aluminium or galvanised, with a 25 mm outlet
connection, screw thread or push-fit.
1. Cleaning step – Filter
2 Intank Filters
Backwashing Device SF and PF
Backwashing Device ZF
1. Cleaning step – Filter
3 Underground Filter
3P Volume Filter VF1
For roof areas up to 300 m². High level
of filtering efficiency, independent of
Flow rate. Continuous filtering of dirt
particles. Frost resistant, low
maintenance. Filter insert is easily
removed for cleaning. Materials: PE with
Stainless Steel sieve with a mesh size
of 0.65 mm.
3P Volume Filter VF1
+ Telescopic extention
Rainwater filter for roof areas up to 300 m².
High level of filtering efficiency,
independent of flow rate. Continuous
filtering of dirt particles. Frost resistant.
Self cleaning. Low maintenance
intervals Filter insert is easily removed
for cleaning. Materials: PE and stainless
steel. Stainless steel sieve with a mesh
size of 0.65 mm. Height 470 mm. Height
difference between inlet and outlet just
300 mm.
Extension tube for direct installation in
the ground Installation depth up to
750 mm Diameter 500 mm. Extension
tube delivered with locking lid. Lid
supports pedestrian loading.
1.
As water arrives the level builds up and is equally
distributed across the cascade
2.
Pre cleaning through the cascades. Largest dirt
particles are led across the primary filter cascades
directly to the storm water.
3.
Pre filtered water then flows over the secondary filter
sieve (mesh size 0.65 mm). Due to the special mesh
structure of the sieve, any dirt washes directly into
the storm water which means the filter is self
cleaning, with very low maintenance.
4.
Cleaned water flows to the cistern.
5.
Dirt goes to the storm water.
1. Cleaning step – Filter
4 Industrial Filters
3P Volume Filter VF2
Rainwater filter for roof areas up to
850 m2. Filter for installation in
concrete ring (diameter 100 cm). Low
maintenance. Filter insert easily removed
for cleaning. Material: stainless steel.
3P Volume Filter VF3
Rainwater filter for roof areas up to
1100 m2. Filter for installation in
concrete ring (diameter 120 cm) Low
maintenance. Filter insert easily removed for
cleaning. Material: stainless steel.
3P Volume Filter VF4
Rainwater filter for roof areas up to
1700 m2. Filter for installation in
concrete ring (diameter 120 cm). Low
1.
As rain water arrives the water level builds up, and runs over the filter
lip, so ensuring it is distributed evenly across the whole width of the
filter cascade.
2.
Pre cleaning through the cascades. Larger dirt particles are washed
across the cascades directly to the sewer.
3.
Pre filtered water then flows over the secondary filter (mesh size 0.65
mm). Due to the special structure of the sieve mesh, any dirt is washed
directly into the storm water which means the filter is self cleaning, low
maintenance.
4.
Cleaned water flows to the storage tank.
5.
Dirt goes to the storm water.
maintenance. Filter insert easily removed for
cleaning. Material: stainless steel.
3P Volume Filter VF6
Rainwater filter for roof areas up to
2350 m2. Filter for installation in
concrete ring (diameter 120 cm). Low
maintenance. Filter insert easily removed for
cleaning. Material: stainless steel.
4 cleaning steps
1. Cleaning step
Filter
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations, with
the advantage of very low maintenance.
By using an underground tank, the water is stored in dark and cool
2. Cleaning step
Calmed inlet
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
3. Cleaning step
Overflow siphon
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
4. Cleaning step
Floating pump
intake
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
2. Cleaning step
Calmed Inlet
3P Calmed Inlet
3P Calmed Inlet 125 mm/110 mm Provides a calmed inlet for rainwater in
the storage tank. Prevents disturbance of settled sedimentation layer and
oxygenises lower layer of water
4 cleaning steps
1. Cleaning step
Filter
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations with
the advantage of very low maintenance.
By using an underground tank, the water is stored in dark and cool
2. Cleaning step
Calmed inlet
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
3. Cleaning step
Overflow siphon
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
4. Cleaning step
Floating pump
intake
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
3. Cleaning step – Overflow
3P Overflow Siphon mono
Overflow siphon, with rodent and odour
barrier, with skimming effect on tank water
surface from sloped inlet slots.
3P Overflow Siphon duo
3P Overflow siphon duo is installed between
the filter and the tank. Overflow inside the
rainwater tank.
1
As the tank water level rises, the water flows over the
skimmer siphon inlet into the storm water or to an infiltration
soakaway. Any floating pollen particles are literally sucked
by the skimmer openings.
2
The surplus water with the pollen is led out of the rainwater
tank. Outlet 110 mm.
3
An Odour Trap is provided by the siphon.
4
Connection filter side for 110 mm pipe
(3P Overflow siphon duo).
5
Rodent entry is prevented, because of the slim slots.
3P Overflow Siphon uno
3P Overflow Siphon Uno with screw
threaded union connector, ideal for
installation through plastic tank walls.
4 cleaning steps
1. Cleaning step
Filter
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations with
the advantage of very low maintenance.
By using an underground tank, the water is stored in dark and cool
2. Cleaning step
Calmed inlet
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
3. Cleaning step
Overflow siphon
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
4. Cleaning step
Floating pump
intake
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
4. Cleaning step – Floating pump intake
3P Floating Pump Intake
For the extraction of the cleanest rainwater
from the storage tank. Connects to suction
pipes 25 mm and 32 mm.
•
•
•
•
Floating ball, diameter 15 cm
Filter inlet sleeve, mesh width 1.2 mm
Check valve, 25 mm and 32 mm.
Connection spout 25 mm and 32 mm.
3P Submersible Pump Base
Housing to fix a submersible Pump on the
bottom of a rainwater tank and to connect a
floating Pump intake.
•
•
•
•
Floating ball, diameter 15 cm
Filter inlet sleeve, mesh width 1.2 mm
Check valve, 25 mm and 32 mm.
Connection spout 25 mm and 32 mm.
4 cleaning steps
1. Cleaning step
Filter
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations with
the advantage of very low maintenance.
By using an underground tank, the water is stored in dark and cool
2. Cleaning step
Calmed inlet
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
3. Cleaning step
Overflow siphon
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
4. Cleaning step
Floating pump
intake
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
CLEAN WATER
OUR MISSION