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3P Hydrosystem ® 1000 roof
Specialist rainwater filter for installation within standard manhole shafts, 1000mm diameter. The ready-to-install Hydrosystem 1000 is quickly and safely installed on site. Suitable for roof areas up to 1000m². The cleaned water has such an excellent water quality that it can be discharged directly into soakaways, surface waters and the wider environment. The filter function is an up-flow process and this allows for a design with a minimal height difference between the inlet and outlet. In the filter shaft the rainwater is cleaned by basic operation of the following processes: Sedimentation, Adsorption, Filtration, and Chemical Precipitation.
Incoming rainwater is led down to the basal section of the filter shaft. A hydrodynamic separator built in the base section promotes particulate sedimentation. The water is led into this separator tangentially and generates a radial flow pattern. Particles settle into the silt trap located below the separation chamber. Above the separation chamber are 4 filter elements, occupying the full shaft width such that all water must flow up through the filter. The Siltation of this filter is slow due to the upwards flow, and the fact that the filter is below the water level. The filter is easily exchanged. Under normal conditions the filter will last for 2 years, maintenance free.
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Einling
Zwilling
Drilling
Stern
Fünfling
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The HS1000 is available with various filter types, depending on the usage of the connected area. The Roof type is used for roof areas that do not have a significant proportion of uncoated metals; the Metal type is employed for metal roof areas, and the Traffic type is used for slightly polluted traffic areas. The Heavy Traffic type is employed for heavily polluted traffic areas and has been granted general technical approval (Z-84.2-4) by the German Institute for Structural Engineering (DIBt). The maximum areas that may be drained depend on the nature of the surfaces. These are given in the following table
Typ
Art.-Nr.
Nature of the surface to e drained
Size of the surface to be drained
D2 gem. DWA M153
Art.-Nr. of filter element
Weight of filter element / piece
Total weight
heavy traffic with technical approval (Z-84.2-4)
3100120
Highly polluted traffic areas (car parks in front of supermarkets, main roads, HGV access roads)
500 m²
0,2
3100125
54 kg
300 kg
traffic
3100110
Slightly polluted traffic areas (side streets, staff car parks, yards)
750 m²
0,2
3100115
34 kg
220 kg
roof
3100100
Roofs without a significant proportion of uncoated metals (< 50m²)
1.000 m²
0,2
3100115
34 kg
220 kg
metal
3100130
Roofs made of uncoated metals (copper, zinc, lead)
650 m²
0,2
3100135
66 kg
350 kg
Parameter
Unit
non metal roof
Copper roof
Zinc roof
Parking lot. residential street
main road distributer
1) aims of LAWA
2) drinking water
3) See- page
4) Hydro- system
from
to
from
to
from
to
from
to
from
to
permissible limit
permissible limit
control value
Aim
Phsico-chemical paramters
90-Perzentil
electrical conducivity
[uS/cm]
25
270
25
270
25
270
50
2400
110
2400
-
2500
-
< 1500
pH value
[-]
4,7
6,8
4,7
6,8
4,7
6,8
6,4
7,9
6,4
7,9
-
6,5 - 9,5
-
7,0 - 9,5
Nutrients
phosphorous (P ges)
[mg/l]
0,06
0,50
0,06
0,50
0,06
0,50
0,09
0,30
0,23
0,34
-
-
-
0,20
ammonium (NH4)
[mg/l]
0,1
6,2
0,1
6,2
0,1
6,2
0,0
0,9
0,5
2,3
-
0,5
-
0,3
nitrate (NO3)
[mg/l]
0,1
4,7
0,1
4,7
0,1
4,7
0,0
16,0
0,0
16,0
-
50,0
-
5)
heavy metals
cadmium (Cd)
[µg/l]
0,2
2,5
0,2
1,0
0,5
2,0
0,2
1,7
0,3
13,0
1,0
5,0
5,0
< 1,0
zinc (Zn)
[µg/l]
24
4.880
24
877
1.731
43.674
15
1.420
120
2.000
500
-
500
< 500
copper (Cu)
[µg/l]
6
3.416
2.200
8.500
11
950
21
140
97
104
20
2000
50
< 50
lead (Pb)
[µg/l]
2
493
2
493
4
302
98
170
11
525
50
10
25
< 25
nickel (Ni)
[µg/l]
2
7
2
7
2
7
4
70
4
70
50
20
50
< 20
chromium (Cr)
[µg/l]
2
6
2
6
2
6
6
50
6
50
50
50
50
< 50
organic substances
polynuclear aromatic hydrocarbons (PAK)
[µg/l]
0,4
0,6
0,4
0,6
0,4
0,6
0,2
17,1
0,2
17,1
-
0,1 (6 Verb.)
2
< 0,2
petroleum-derived hydrocarbons (MKW)
[µg/l]
0,1
3,1
0,1
3,1
0,1
3,1
0,1
6,5
0,1
6,5
-
-
-
< 0,2
Legende
critical parameter, treatment necessary
treatment maybe necessary not generally
no critical parameter
1. Aims of the German working group on water issues of the Federal Government (LAWA) for surface water, usage as potable water (1998)
2. Permessible of the German Drinking Water Ordinance (2001)
3. Control value for seepage of the German Federal Soil Protection Act an Ordinance (1999) according to §8 1,2
4. The aims of the system refer to average annual loads
5. Nitrate cannot be reduced significant with this filter
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1. The rainwater from the connected area is fed into the basal section of the filter housing. The angled inlet generates a radial flow pattern.
2. The hydrodynamic separator converts turbulent waters into a radial laminar flow pattern, generating particle sedimentation, particularly of the sand fraction.
3. This takes place over an inlet to the lower section of the filter shaft. The sediment is retained in a silt trap chamber below the separator. The silt trap needs to be emptied out at intervals.
4. In the central section of the filter housing is the actual filter, Filter Element: Metal. The filter element filters out the fine materials in an up-flow process and dissolved materials are precipitated and adsorbed. The filter is backwashed from above. When exhausted the filter is easily exchanged.
5. The filter element is easily pulled up via shaft openings.
6. Above the filter element is the clean water. It passes via an oil separator and then flows via the outlet into soakaways and so on.
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1. Rainwater Inlet (DN 200).
2. Angled Inlet.
3. Separator Chamber.
4. Silt Trap to retain sediment.
5. Filter Elements (4 No.).
6. Removal Device for Filter Element.
7. Overflow Pipe and Cleaning Shaft.
8. Oil Separator.
9. Outlet to storage or to waste.
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Steps of maintenance
Measuring the permeability of the filter elements (by specialized company)1 Pump with flow meter, flow control and piping into the shaft
2 pump the water above the filter elements in the central maintenance / overflow pipe, if the water level drops too low, then top up with tap water
3 Flow increase until the top of the pipe or the maintenance of the pump power limit is reached; pump ten minutes in steady-state
4 Read the flow meter; the flow after 10 minutes of pumping time corresponds to the permeability of the filter element, if the flow rate is less than 6 l / s, then the filter elements have to be flushed
Flushing of the filter elements
1 Pull In systems with DIBt-/LfU-approval the end cap from the central maintenance / overflow pipe
2 Introducing the flushing lance through the service tube.
3 Flush below the filter element. Sump pump into the filter elements and turn on.
4 attach compressor and fresh water connections . Initiate air and water in the flushing lance.
5 Flushing perform until bubbles evenly distributed throughout the filter element. All four filter elements rinse.
6 Repeat measuring the permeability of the filter elements.
7 In systems with DIBt-/LfU-Zulassung finally the end cap back onto the central maintenance overflow pipe
Filters exchange
1 Check with gas detector atmosphere in the pit and constantly monitor
2 Seek rescue tripod above the open shaft; create safety harness and hook into rescue hoist, climb into the slot
3 In systems with DIBt-/LfU-approval the end cap from the central maintenance and overflow pipe decrease. Then pull the extension for the overflow pipe from the socket and lift it out of the bay
4 Screw the T-piece (oil trap) and detach, remove it completely out of the slot
5 Solve uplift of the filter elements and pull upward
6 Hook and rope in cartridge and remove filters out of the shaft to clean them before being placed in the designated tray
7 Condescend mud pump on the service tube into the shaft and turn on, the specifications for the disposal must be observed!
8 To pump out water at the intermediate level, well inside and seals rinse thoroughly with water from above, after rinsing, the pump can be pulled back
9 Before inserting the new filter elements spray the nozzle with silicone spray.
10 Filter condescend with winds in the bay and put into the seals
11 replace tee (oil boom) and use screw mount
12 Uplift reassemble and attach the extension to the central maintenance and overflow pipe
13 Fill water into the annular space between the filters and between filters and shaft wall and check that the water level in the annulus remains constant
14 In systems with DIBt-/LfU-approval fit the end cap back into the central maintenance and overflow pipe.
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Hydraulic flow rate of the filter in new condition: min. 12 l / s Hydraulic flow rate: min. 2,5 l / s
Supply and install the manhole structure described below, for the treatment of storm water of roof surfaces.
Precast concrete strength class C35/45 according to DIN EN 206-1 and DIN 1045-2/4Manhole structure consisting of:
monolithic reinforced concrete circular tanks, ID = 1000 mm, h = 2910 mm, DN200 inlet, distribution DN200/200, drain DN200cover:
1 openingswith manhole cover Di = 625 mm (Class B)1 pieces 3P Hydrosystem factory installed in previously-described pit.
We recommend a cover without ventilation.
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Hydraulic flow rate of the filter in new condition: min. 24 l / s
Hydraulic flow rate: min. 5 l / sSupply and install the manhole structure described below, for the treatment of stormwater of roof surfaces.
Precast concrete strength class C35/45 according to DIN EN 206-1 and DIN 1045-2/4Manhole structure consisting of:
monolithic reinforced concrete circular tanks, ID = 2000 mm, h = 3100 mm, DN250 inlet, distribution DN250/200, drain DN250cover:
Da = 2300 mm sized and reinforced SLW 60 according to DIN 1072,
2 openings with manhole cover Di = 625 mm (Class B)2 pieces 3P Hydrosystem factory installed in previously-described pit. We recommend a cover without ventilation
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Hydraulic flow rate of the filter in new condition: min. 36 l / s
Hydraulic flow: min. 7.5 l / sSupply and install the manhole structure described below, for the treatment of stormwater of roof surfaces.
Precast concrete strength class C35/45 according to DIN EN 206-1 and DIN 1045-2/4Manhole structure comprising:
monolithic reinforced concrete circular tanks Di = 2500 mm, h = 3100 mm, socket, supply DN300, distributor DN300/200 PE, 1 run KG/DN300Cover:
Da= 2800 mm, measured and reinforced = SLW 60 according to DIN 1072,
3 openings with manhole cover Di = 625 mm (Class B)3 piece 3P Hydrosystem factory installed in previously-described pit. We recommend a cover without ventilation.
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Hydraulic flow rate of the filter in new condition: min. 48 l / s
Hydraulic flow rate: min. 10 l / sSupply and install the manhole structure described below, for the treatment of stormwater of roof surfaces.
Precast concrete strength class C35/45 according to DIN EN 206-1 and DIN 1045-2/4Manhole structure consisting of:
monolithic reinforced concrete bucket, bottom part with sleeve, ID = 2500 mm, h = 2200 mm, inlet sleeve pipe DN300, DN200 4 x drain, 4x bottom part with a socket, Di = 1000mm, h = ca 2910mm, the factory in accordance with sleeve DIN 4034-1,
with 2 holes for seel to KG/DN200, inlet spigot KG/DN200, downflow KG/DN200 tube mounted on manhole.cover:
Da = 2800 mm, measured and reinforced = SLW 60 according to DIN 1072,1 opening Manhole 100/60:
according to DIN EN 1917 / 4034-1, manhole cover Di = 625 mm (Class B)1 piece 3P hydro system factory installed in previously-described pit.
Plenum:
D = 2500 mm,project-related
We recommend a cover without air cooling. -
Hydraulic flow rate of the filter in new condition: min. 60 l / s
Hydraulic flow: min. 12.5 l / sSupply and install the manhole structure described below, for the treatment of stormwater of roof surfaces.
Precast concrete strength class C35/45 according to DIN EN 206-1 and DIN 1045-2/4Manhole structure consisting of:
monolithic reinforced concrete round container ID = 3000 mm, h = about 3150 mm, socket, supply DN400, distributor DN400/200 PE, 1 runoff KG/DN400cover:
Da = 3300 mm, measured and reinforced = SLW 60 according to DIN 1072,
5 openings with manhole cover Di = 625 mm (Class B)Built-in 5 piece 3P hydro system in previously-described manhole.
We recommend a cover without ventilation.