D-Raintank. Forward-Looking Rainwater Drainage. Collecting Drainage Saving

Transcription

1 D-Raintank Forward-Looking Rainwater Drainage Collecting Drainage Saving

2 The D-Raintank effectively solves the problem of local drainage of rainwater! Illustration of the trend of area requirement in Germany until 2020 Source: BBR 2004 The Problem and the Future Development The local drainage, retention, cleaning and rainwater utilisation are fundamental to modern rainwater management ensuring a long-term resource, protecting and providing cost effective provision of clean and process water for the population. Rainwater: Large volumes of rainwater, especially with residential- and trafficked areas, are drawn from the natural water cycle and directly discharged to the natural drainage system. This discharge is very expensive. Heavy rain quickly causes flooding and surcharging of sewage treatment plants. Land use: The share of residential- and traffic areas is about 12.9 % of the total area (approx. 46,000 km 2 ) in Germany. Experience has shown that half of this area is impermeable. This area must be drained, a fact that has inevitable consequences for the water balance in general and the natural ground water recharge in particular. In spite of renaturation, the constructed environment rises by an average of 115 hectares daily. Local drainage: This kind of drainage supports the natural water cycle and thus discharges into the natural drainage system. It makes an essential contribution to flood protection in river basins, especially. The drainage on property is controlled by building regulations and site specific requirements. The soil characteristics have an important bearing on the calculation of drainage capacity, which will need to be approved by the appropriate authorities. D-Raintanks can be installed piled up to 3 layers high. The D-Raintank has been especially developed for local rain water drainage and control. The D-Raintank is designed for underground use and consists of specially developed plastic modules with a storage capacity of 95 % of total volume. Compared to this, traditional gravel- or crushed rock soakaways attain approx. 30 % - 35 %, hence reducing the necessary excavation by approximately 60%. The modules are light weight and their stability allows them to be combined to form almost unlimited volume and styles of configuration. The stored rain water then reinfiltrates or is discharged at a pre-determined and controlled rate. D-Raintank is a highly economic alternative to traditional soakaways, at the same time reducing the cost to the environment. 840 mm Volume: 0,272 m 3 The head plates are designed to support high loads and allow for a cover height of up to 2.00 m 810 mm 400 mm Technical Data: Dimensions: 810 x 840 x 400 mm Connections: DN/OD 110, 160 or 200 mm Volume: 272 litres 3.67 pieces D-Raintank = 1 m 3 Storage Coefficient: 95 % Weight: approx. 15 kg / D-Raintank Colour: Black Material: Made from 100 % high-quality ground water neutral virgin polypropylene (PP). This material is resistant against any contaminants likely to be present in rain water and is especially hard-wearing and long-lasting. D-Raintank - Advantages at a glance Outstanding storage capacity (95 % void) Can be used as Soakaway or Attenuation Free movement of water Simple and quick installation reduces construction costs Environmentally friendly, high-quality material (PP) Flexibility of installation provides efficient use of space Low maintenance costs Flushable Complete package available Installation Depth and Cover Height Traffic Load Cover Height Trench Height Up to 2.5 t cm cm 1 3 layers SLW cm cm H layers Other installation depths for other countries on request 2 3

3 The D-Raintank - Successfully Installed The D-Raintank Application Examples Soakaway system with D-Raintanks laid in line and with a receptor unit. HS -R-pipes have been used to install the connections. Soakaway system with D-Raintanks as overflow soakaway for rain water storage with receptor unit. HS -R-pipes have been used to install the connections. The Installation The D-Raintank system is successfully used throughout the world. Installation fully in accordance with manufacturers recommendations is paramount. Specialist contractors are available for this purpose. Technical information containing advice and detailed laying instructions will be sent upon request. Soakaway system with D-Raintanks in line with a receptor unit and an overflow manhole behind. HS -R-pipes have been used to install the connections. Detail D-Rainclean The D-Raintank can be used to drain even the smallest of industrial areas. Here the option as soakaway. A soakaway coated with geotextile The installation of 4 freeway pipes Soakaway for roof drainage in industrial estates. Optionally D-Raintank -Freeway units can be used for the upper layer. Soakaway system as roof drainage and for parking areas, combined with a D-Rainclean -Channel with filter media to treat polluted surface water. The D-Raintank The effective infiltration trench with multiple possibilities In addition to the use for catchment of water from roofed - or trafficked- areas, the D-Raintank may be used in new residential areas, industrial plants, sports grounds etc. as soakaway. Its capacity to store water and gradually release it can be used for the irrigation of parks and trees. For this particular use the elements will have to be shrink-wrapped into a water-tight PE membrane and may then be used as rainwater harvesting for future use. Freeway-Elements: On request, Freeway-Elements can be installed. Silts may be flushed out and removed later. Wrapped: The D-Raintank is wrapped in D-Raintank -Geotextile, which filters out fines. This fabric consists of mechanically bonded polypropylene fibres (PP) for water permeability. D-Raintank in Comparison Reference unit = (1 m 3 ) Advantage Storage Capacity Advantage Excavation Advantage Installation Time 3m3 1m3 approx. 30% approx. 95% 4 5

4 D-Raintank - The Complete System Products for rain water management All elements described combine together to provide a high-performance drainage system. Supplementary products such as receptor units, cast-iron covers, connector sets and drill bits complete the system. D-Raintank with Connectors DN/OD 110, DN/OD 160 and DN/OD 200 Ventilation Unit with DN/OD 110 outlet on top Long-term test with vertical extreme load Long-term test procedures conducted by independent testing institutions Continuous quality control procedures ensure the reliability of the products D-Raintank Freeway with Connector Socket DN/OD 250 and perforated HS -pipe DN/OD 250 flushable and easy to inspect with a cctv-camera HS -Silt Trap Manhole DN/OD 800 with D-Raintank Freeway HS -Silt Trap Manhole DN/OD 800 incl. 1 inlet and 1 outlet DN/OD 250 debris collection with stainless steel basket, 2 overflow pipes, telescopic pipe and sealing ring, for water catchment areas of up to m 2 HS -Silt Trap Manhole incl. 1 inlet and 1 outlet DN/OD 250, stainless steel filter, telescopic pipe and seal, for water catchment areas up to m 2 D-Raintank Freeway with integrated perforated HS -pipe DN/OD 250, flushable and suitable for cameras Receptor Unit DN/OD 315 incl. 1 inlet and 1 outlet DN/OD 160, silt trap for water catchment areas up to 400 m 2 Total height incl. cover: mm Receptor Unit DN/OD 315 silt trap incl. pre-drilled orifice plate, connection DN/OD 110, exterior overflow-pipe DN/OD 110 Total height incl. cover: mm D-Raintank Dimensions: 810 x 840 x 400 mm Volume: m 3 must be wrapped with D-Raintank Geotextile on site without connector D-Raintank -under pressure Load Bearing Capacity The vertical and horizontal load bearing capacity of the D-Raintank has been established within the company and by independent accredited testing laboratories -, sand box- and field trials. In the course of these trials both short and long term installations have been tested and comply with the necessary security factors (see page 3 Installation Depth and Cover Height ). Design The design of the D-Raintank was developed and perfected by well coordinated FEM calculations and additional experimental research. The result is a high specification and reliable product developed specifically for installation under trafficked areas. proven quality! Quality Assurance To ensure high and consistent quality of the D-Raintank virgin PP from respected and proven sources is used. Constant internal quality control together with testing and evaluation by independent accredited testing houses is conducted. Amongst other tests, the scope of the internal quality control includes monitoring dimensional consistency and also short and long term component testing. Funke Kunststoffe GmbH is DIN ISO 9001 approved. HS -Flow Control/Overflow Manhole DN/OD 800 incl. adjustable orifice plate, telescopic pipe and sealing ring DN/OD 200, outlet DN/OD 160 complete with overflow pipe DN/OD 160 D-Raintank -Geotextile Mechanically bonded geotextile made from PP fibres with CE-Marking, GRK 3 Roll dimensions: 2.95 width x 20.0/100.0 m length and 5.90 width x m length 6 7

5 D-Raintank - Customer Support We support you during the design and construction phase of your soakaway by Project evaluation Volumetric calculation and configuration of your project according to ATV-DVWK-data sheet A-138 and manufacturer s recommendations Planning and engineering support during design and construction Provision of site specific information on CD-ROM Supply of conformation documentation (EU, UBA, Specialist Reports) Advice: For the local drainage of polluted rain water on parking areas we offer our DIBt admitted product D-Rainclean Channel with filter media. Please contact us if you require more information on this product. The local rainfall data determined by KOSTRA-DWD is the basis for the calculation of soakaways in Germany. Project Questionnaire Funke Kunststoffe GmbH Siegenbeckstr. 15 D Hamm-Uentrop Tel.: +49 (0) Fax: +49 (0) info@ funkegruppe.de www. funkegruppe.de Advice: Further information can be found in our Technical Information available on request.