US20140314485A1 - Water drain reservoir - Google Patents

Water drain reservoir Download PDF

Info

Publication number
US20140314485A1
US20140314485A1 US14/356,509 US201214356509A US2014314485A1 US 20140314485 A1 US20140314485 A1 US 20140314485A1 US 201214356509 A US201214356509 A US 201214356509A US 2014314485 A1 US2014314485 A1 US 2014314485A1
Authority
US
United States
Prior art keywords
substrate
water
mmvf
mmvf substrate
conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/356,509
Other languages
English (en)
Inventor
Michaeel Emborg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rockwool AS
Original Assignee
Rockwool International AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rockwool International AS filed Critical Rockwool International AS
Assigned to ROCKWOOL INTERNATIONAL A/S reassignment ROCKWOOL INTERNATIONAL A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Emborg, Michaeel
Publication of US20140314485A1 publication Critical patent/US20140314485A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres

Definitions

  • the present invention relates to a water drain reservoir, the use of a water drain reservoir, and a method of dissipating surface water.
  • Precipitation such as rain, snow, sleet, hail and the like results in surface water which needs to be disposed of.
  • Buildings commonly have guttering which collects precipitation which has fallen on a roof.
  • the guttering is connected to a drainpipe and the resulting water can be disposed of via mains drainage.
  • the surface water can be disposed of without the use of mains drainage.
  • the water can be harvested in a rain water butt which can then be used for watering a garden.
  • EP1818463 discloses a different solution of a water drain tank or channel module made of a plastic box with open lattice walls covered by a water-permeable geo-textile material. This water drain tank or channel module is surrounded by sediment and releases the water from the box in a controlled way. The geo-textile material is required to prevent sediment from entering the tank or module.
  • DE2155594 discloses a water drain reservoir made of open-pored foam, such as polyurethane. It is difficult to make a foam with a 100% open foam structure. The lower the degree of open-pores, the less water a foam structure can hold. The less water the foam structure holds, the larger it needs to be to hold a given amount of water. The reduced water holding capacity of a foam substrate means that it is only able to buffer a low level of water.
  • a disadvantage of foam water drain reservoirs is that if the ground water level is high, the foam water drain reservoir can float in the water, and thus rise out of the ground.
  • a water drain reservoir comprising a coherent man-made vitreous fibre substrate (MMVF substrate) and a conduit having two open ends, wherein the MMVF substrate comprises man-made vitreous fibres bonded with a cured binder composition, wherein a first open end of the conduit is in fluid communication with the MMVF substrate.
  • MMVF substrate coherent man-made vitreous fibre substrate
  • conduit having two open ends
  • the MMVF substrate comprises man-made vitreous fibres bonded with a cured binder composition, wherein a first open end of the conduit is in fluid communication with the MMVF substrate.
  • a water drain reservoir comprising a coherent MMVF substrate and a conduit with two open ends, wherein the MMVF substrate comprises man-made vitreous fibres bonded with a cured binder composition, wherein a first open end of the conduit is in fluid communication with the MMVF substrate, as a water dissipating system wherein the water drain reservoir is positioned in the ground, whereby water flows along the conduit and is absorbed by the MMVF substrate, wherein the water is dissipated by the MMVF substrate into the ground.
  • a method of dissipating surface water comprising providing a water drain reservoir comprising a coherent MMVF substrate and a conduit with two open ends, wherein the MMVF substrate comprises man-made vitreous fibres bonded with a cured binder composition, wherein a first open end of the conduit is in fluid communication with the MMVF substrate, positioning the MMVF substrate in the ground wherein surface water flows along the conduit and is absorbed by the MMVF substrate and wherein the water dissipates from the MMVF substrate into the ground.
  • MMVF substrates are known for numerous purposes, including for sound and thermal insulation, fire protection and in the field of growing plants. When used for growing plants, the MMVF substrate absorbs water to allow plants to grow. When used for growing plants, it is important that the MMVF substrate does not dry out. In the field of growing plants, an MMVF substrate is normally used instead of soil to grow plants. The relative capillarity of soil and an MMVF substrate is not important in the field of growing plants.
  • WO01/23681 discloses the use of MMVF substrate as a sewage filter.
  • the present invention provides the use of a coherent MMVF substrate as a water drain reservoir.
  • the man-made vitreous fibres are bonded with a cured binder composition and the water drain reservoir can retain water within its open pore structure.
  • the MMVF substrate is positioned in the ground and is preferably buried within the ground.
  • the MMVF substrate is completely covered with earth.
  • Earth includes sediment, sand, clay, dirt, gravel and the like.
  • the MMVF substrate may be buried under at least 20 cm of earth, preferably at least 40 cm of earth, most preferably at least 50 cm of earth.
  • the conduit may be an open channel, and water may flow along this channel into the MMVF substrate.
  • the conduit is a pipe.
  • An advantage of a pipe is that it is hollow and can therefore freely transport water underground to a MMVF substrate. Further, the wall of the pipe prevents debris from entering the pipe.
  • the conduit preferably a pipe
  • the conduit is positioned in fluid communication with the top section of the MMVF substrate.
  • the conduit is positioned in fluid communication with the top half of the MMVF substrate by volume.
  • the conduit may be in fluid communication with the top surface of the MMVF substrate.
  • the conduit is preferably in fluid communication with the top part of a side wall of the MMVF substrate.
  • the conduit preferably a pipe
  • the conduit is in fluid communication with the MMVF, and may be in fluid communication with a system of conduits, preferably pipes and one or more drainpipes so that water which flows off a roof, into a gutter, down a drainpipe can be stored within MMVF substrate during wet weather.
  • the water drain reservoir thus provides an effective way to dispose of rain water which does not put any pressure on existing sewage systems. It is not necessary to transport the water elsewhere; the water is disposed of within the ground and preferably within the grounds of the building.
  • each property may have one, or several, water drain reservoirs connected to their guttering systems, and thus each property is able to dispose of this surface water within their own grounds.
  • the same water drain reservoir for disposal of surface water.
  • the water drain reservoir is provided with a conduit, preferably a pipe, partially embedded into a MMVF substrate.
  • a conduit preferably a pipe
  • the MMVF is in fluid communication with the conduit.
  • the MMVF substrate can butt up against the conduit, preferably a pipe, through which rain water will flow, in order to achieve this fluid communication.
  • the conduit it is preferable however for efficiency for the conduit to be at least partially embedded into the MMVF substrate.
  • the embedded part of the conduit may have an aperture in its outer wall, preferably more than one aperture. The presence of an aperture has the advantage of there being a greater area through which the water can flow into the MMVF substrate.
  • the MMVF substrate may have a passage which extends from a first end of the MMVF substrate, towards a second end of the MMVF substrate, wherein the first and second ends are opposed and wherein the first end of the passage is in fluid communication with water from the conduit, preferably a pipe.
  • the passage may extend 10% to 100% of the way through the MMVF substrate, preferably 20% to 99% of the way through the MMVF substrate, preferably 50% to 99% of the way through the MMVF substrate, more preferably 80% to 95% of the way through the substrate.
  • the advantage of the passage is that there is a greater area through which the water can flow into the MMVF substrate.
  • the passage may have any cross-sectional shape, preferably circular, triangular or square.
  • the passage may be formed by embedding the conduit, preferably a pipe into the MMVF substrate as described above.
  • the conduit preferably has an aperture in its outer wall, preferably more than one aperture. The presence of an aperture has the advantage of there being a greater area through which the water can flow into the MMVF substrate.
  • the passage may be formed by a separate pipe which has at least one aperture.
  • the pipe is preferably a perforated plastic pipe, such as a PVC pipe.
  • the pipe gives strength to the drain and prevents the passage from becoming closed.
  • the pipe is perforated to allow the water to drain into the passage.
  • the embedded pipe provides support to the passage to make it more resilient or resistant to pressure. In the absence of a pipe, the passage could become closed due to pressure on the MMVF substrate, such as vehicles moving over the MMVF substrate.
  • the passage may be formed by removing a section of the MMVF substrate, such as by drilling.
  • the resulting passage will be porous and thus allow water to be absorbed into the MMVF substrate from the passage.
  • the MMVF substrate may comprise a first part in contact with a second part, wherein the passage is disposed between the first part and the second part.
  • the first part may be preformed with a groove along at least part of the length of the MMVF substrate, and when the first part and second parts are joined together, the passage is formed by the groove and the second part.
  • the second part may have the groove.
  • both the first and second parts may have a groove and the grooves may be lined up to form the passage when the first and second parts are joined together.
  • the groove or grooves may be of any shape as required to form the passage.
  • the groove or grooves may therefore have a cross-section which is semicircular, triangular, rectangular or the like.
  • the first and second parts of the MMVF substrate may be joined by placing the two parts together, or using an adhesive.
  • the passage may be formed by a combination of the means described above.
  • the cross-sectional area of the first and second ends of the passage are in the range 2 to 200 cm 2 , preferably 5 to 100 cm 2 .
  • the cross-sectional area of the first end of the passage is 0.5% to 15% of the cross-sectional area of the first end of the MMVF substrate, preferably 1% to 10%.
  • the cross-sectional area of the second end of the passage is 0.5% to 15% of the cross-sectional area of the second end MMVF substrate, preferably 1% to 10%.
  • the openings are such a small percentage of the cross-sectional area of the ends of the MMVF substrate since the vast majority of the MMVF substrate is used to buffer the amount of water that is conveyed to the MMVF substrate.
  • the cross-sectional area of the passage is preferably substantially continuous along its length.
  • substantially continuous means that the cross-sectional area is within 10% of the average cross-sectional area, preferably within 5%, most preferably within 1%. If necessary however, the cross-sectional area can be varied according to the requirements of the passage to be smaller or larger.
  • the passage is may be straight through the MMVF substrate, that is, the passage takes the most direct route towards the second end of the MMVF substrate to allow water to take the most direct route along the passage.
  • the passage may follow an indirect route through the MMVF substrate to increase the surface area of the passage so that water can drain into the MMVF substrate at a faster rate.
  • passages may be more than one passage through the substrate to increase the surface area of the passage so that water can drain into the MMVF substrate at a faster rate.
  • the passages are preferably connected to form a network of passages so that water may flow through the network of passages.
  • Each passage may be in fluid communication with a different conduit thus allowing water from different sources to be disposed of by the water drain reservoir.
  • the passage may have a triangular cross-section.
  • the base of the triangle is preferably parallel with the base of the MMVF substrate.
  • the passage can have a semicircular cross-section.
  • the base of the MMVF substrate is preferably parallel with the base of the semicircle.
  • the passage can have a circular or a rectangular cross-section. The advantage of these passage cross-sections is that the largest surface area of the passage is at the lowest point which gives the largest surface area for the water to flow through.
  • the passage is preferably positioned centrally in the width of the cross-section of the MMVF substrate. The reason that this is substantially centrally, is so that the flow of the water which is to be absorbed will be down the centre of the MMVF substrate. This has the advantage that the strength of the MMVF substrate is maintained at the sides of the MMVF substrate. If however the passage was arranged close to one side of the MMVF substrate, this may cause a weakness in the structure.
  • the passage is offset towards a first direction.
  • the MMVF substrate may be installed with the passage at the top of the water drain reservoir to allow the water to drain into the main body of the MMVF substrate
  • the second end of the passage is preferably closed to prevent earth from entering the passage and reducing the size of the passage.
  • the second end of the passage may be closed by arranging a plate over the opening, such as an MMVF plate, a metal plate, a plastic plate or the like.
  • the second end of the passage may be plugged, such as with a plug made from MMVF, metal, plastic or the like.
  • the second end may be wrapped in a geo-textile material to close the second end of the passage.
  • a water drain reservoir may be provided in kit form comprising a conduit and a coherent MMVF substrate, wherein the MMVF substrate comprises man-made vitreous fibres bonded with a cured binder composition.
  • a series of MMVF substrates may be connected together to increase the volume of water that can be stored and then dissipated. These MMVF substrates may be placed next to each other so that water can dissipate from one MMVF substrate to the next.
  • a conduit preferably a pipe, with apertures can run through a first MMVF substrate, and then be at least partially embedded into a second MMVF substrate.
  • the conduit may extend all the way through the second MMVF substrate as discussed above. This allows any water which is not absorbed by the first MMVF substrate to flow into the second MMVF substrate.
  • the man-made vitreous fibres can be glass fibres, ceramic fibres, basalt fibres, slag wool, stone wool and others, but are usually stone wool fibres.
  • Stone wool generally has a content of iron oxide at least 3% and content of alkaline earth metals (calcium oxide and magnesium oxide) from 10 to 40%, along with the other usual oxide constituents of MMVF.
  • alkaline earth metals calcium oxide and magnesium oxide
  • These are silica; alumina; alkali metals (sodium oxide and potassium oxide) which are usually present in low amounts; and can also include titania and other minor oxides.
  • Fibre diameter is often in the range of 1 to 20 ⁇ m, preferably 3 to 5 ⁇ m.
  • the MMVF substrate is in the form of a coherent mass. That is, the MMVF substrate is generally a coherent matrix of MMVF fibres, which has been produced as such, but can also be formed by granulating a slab of MMVF and consolidating the granulated material.
  • the water holding capacity of the MMVF substrate is at least 80% of the volume, preferably 80-99%, most preferably 85-95%.
  • the water holding capacity of the MMVF substrate is high due to the open pore structure and the MMVF substrate being hydrophilic.
  • the amount of water that is retained by the MMVF substrate when it gives off water is less than 20% vol, preferably less than 10% vol, most preferably less than 5% vol.
  • the water retained may be 2 to 20% vol, such as 5 to 10% vol.
  • the buffering capacity of the MMVF substrate that is the difference between the maximum amount of water that can be held, and the amount of water that is retained when the MMVF substrate gives off water is at least 60% vol, preferably at least 70% vol, preferably at least 80% vol.
  • the buffering capacity may be 60 to 90% vol, such as 60 to 85% vol.
  • the advantage of such a high buffering capacity is that the MMVF substrate can buffer more water for a given volume, that is the MMVF substrate can store a high volume of water when it rains, and release a high volume of water as the surrounding ground dries out.
  • the buffering capacity is so high because MMVF substrate requires a low suction pressure to remove water from the MMVF substrate. This is demonstrated in the Example.
  • the water holding capacity, the amount of water retained and the buffering capacity of the MMVF substrate can be measured in accordance with EN 13041-1999.
  • the water is stored in the MMVF substrate when the surrounding ground is saturated, that is the capillary balance means that the water is retained within the MMVF substrate.
  • the capillary balance shifts, and the water dissipates from the MMVF substrate into the surrounding ground. In this way, water is held within the MMVF substrate when the surrounding ground is saturated.
  • the water dissipates from the MMVF substrate into the ground.
  • the MMVF substrate is then able to take on more water, when this flows down the conduit, preferably a pipe, into the MMVF substrate.
  • the structure of the MMVF substrate is such that whilst water can dissipate from the substrate into the ground, earth does not contaminate the MMVF substrate. This is due to the small pore size within the substrate. It is therefore not necessary to wrap the MMVF substrate in a geo-textile to prevent contamination. This has the advantage that on installation, the MMVF substrate does not have to be manually wrapped in a geo-textile material by the installer. The wrapping step of the known water drain reservoirs is awkward and time consuming, since it is performed at the installation stage. The water drain reservoir of this invention overcomes this problem.
  • the binder may be any of the binders known for use as binders for coherent MMVF products.
  • the MMVF substrate is hydrophilic, that is it attracts water.
  • the MMVF substrate is hydrophilic due to the binder system used. In the binder system, the binder itself may be hydrophilic and/or a wetting agent used.
  • the hydrophilicity of a sample of MMVF substrate can be measured by determining the sinking time of a sample.
  • a sample of MMVF substrate having dimensions of 100 ⁇ 100 ⁇ 65 mm is required for determining the sinking time.
  • a container with a minimum size of 200 ⁇ 200 ⁇ 200 mm is filled with water.
  • the sinking time is the time from when the sample first contacts the water surface to the time when the test specimen is completely submerged.
  • the sample is placed in contact with the water in such a way that a cross-section of 100 ⁇ 100 mm first touches the water.
  • the sample will then need to sink a distance of just over 65 mm in order to be completely submerged. The faster the sample sinks, the more hydrophilic the sample is.
  • the MMVF substrate is considered hydrophilic if the sinking time is less than 120 s. Preferably the sinking time is less than 60 s. In practice, the MMVF substrate may have a sinking time of a few seconds, such as less than 10 seconds.
  • the binder including any oil required may be hydrophobic, such as a phenol urea formaldehyde binder.
  • a wetting agent is additionally included in the MMVF substrate.
  • a wetting agent will increase the amount of water that the MMVF substrate can absorb.
  • the wetting agent may be any of the wetting agents known for use in MMVF substrates that are used as growth substrates. For instance it may be a non-ionic wetting agent such as Triton X-100. Some non-ionic wetting agents may be washed out of the MMVF substrate over time. It is therefore preferable to use an ionic wetting agent, especially an anionic wetting agent, such as linear alkyl benzene sulphonate. These do not wash out of the MMVF substrate to the same extent.
  • EP1961291 discloses a method for producing water-absorbing fibre products by interconnecting fibres using a self-curing phenolic resin and under the action of a wetting agent, characterised in that a binder solution containing a self-curing phenolic resin and polyalcohol is used.
  • This binder can be used in the present invention.
  • the wetting agent does not become washed out of the MMVF substrate and therefore does not contaminate the surrounding ground.
  • the binder of the MMVF substrate can be hydrophilic, that is it attracts water.
  • the effect of using the hydrophilic cured binder in the MMVF substrate is that the MMVF substrate can absorb more water than when a hydrophobic binder is used.
  • a hydrophilic binder does not require the use of a wetting agent.
  • a wetting agent can be used to increase the hydrophilicity of either a hydrophobic or a hydrophilic binder. This means that the MMVF substrate will absorb a higher volume of water than if the wetting agent is not present. Any hydrophilic binder can be used.
  • the binder may be a formaldehyde-free aqueous binder composition
  • a binder component (A) obtainable by reacting at least one alkanolamine with at least one carboxylic anhydride and, optionally, treating the reaction product with a base; and a binder component (B) which comprises at least one carbohydrate, as disclosed in WO2004/007615.
  • This binder is hydrophilic.
  • WO 97/07664 discloses a hydrophilic substrate that obtained its hydrophilic properties from the use of a furan resin as a binder.
  • the use of a furan resin allows the abandonment of the use of a wetting agent.
  • This binder may be used in the present invention.
  • WO07129202 discloses a hydrophilic curable aqueous composition wherein said curable aqueous composition is formed in a process comprising combining the following components:
  • ratio of (a):(b) is from 95:5 to about 35:65.
  • the hydrophilic modifier can be a sugar alcohol, monosaccharide, disaccharide or oligosaccharide. Examples given include glycerol, sorbitol, glucose, fructose, sucrose, maltose, lactose, glucose syrup and fructose syrup. This binder can be used in the present invention.
  • a binder composition comprising:
  • binder composition prior to curing contains at least 42% by weight of the sugar component based on the total weight (dry matter) of the binder components may be used in the present invention, preferably in combination with a wetting agent.
  • Binder levels are preferably in the range 0.5 to 5 wt %, preferably 2 to 4 wt % based on the weight of the MMVF substrate.
  • Levels of wetting agent are preferably in the range 0 to 1 wt %, based on the weight of the MMVF substrate, in particular in the range 0.2 to 0.8 wt %, especially in the range 0.4 to 0.6 wt %.
  • the MMVF product may be made in any of the ways known to those skilled in the art for production of MMVF growth substrate products.
  • a mineral charge is provided, which is melted in a furnace to form a mineral melt.
  • the melt is then formed into fibres by means of centrifugal fiberisation e.g. using a spinning cup or a cascade spinner, to form a cloud of fibres.
  • Binder and optionally wetting agent are usually added at the fiberisation stage by spraying into the cloud of forming fibres.
  • the MMVF substrate may have density in the range 60 to 200 kg/m 3 , in particular in the range 130 to 150 kg/m 3 .
  • the advantage of this density is that the MMVF substrate has a relatively high compression strength. This is important as the MMVF substrate may be installed in a position where people or vehicles need to travel over the ground in which the MMVF substrate is positioned.
  • a force distribution plate is positioned on top of the MMVF substrate in order to distribute the force applied to the MMVF substrate. Preferably such a force distribution plate is not required due to the density of the MMVF substrate.
  • the dimensions of a water drain reservoir may be in the range: height 0.3-1.2 m; width 0.15-0.8 m; and length 0.5-1.5 m.
  • the volume of a water drain reservoir may be 0.025-1.4 m 3 , preferably 0.05-1 m 3 , preferably 0.1-0.5 m 3 .
  • the typical dimensions of a water drain reservoir according to the invention are 0.6 m ⁇ 0.2 m ⁇ 1.0 m (height ⁇ width ⁇ length). This provides a water drain reservoir with a volume of 0.12 m 3 , which has proven satisfactory for use in relation to a typical single family house.
  • the dimensions and thus the volume of a water drain reservoir may of course be varied depending on the actual use.
  • a plurality of water drain reservoirs may also be combined to achieve the desired total volume as described earlier.
  • FIG. 1 shows schematically a water drain reservoir dug into the ground and connected to the guttering of a house
  • FIG. 2 shows water retention curves for a MMVF substrate, a foam substrate and silt loam.
  • FIG. 1 shows a MMVF substrate 1 that has been dug into the ground 2 in the vicinity of a house 3 .
  • the house 3 is provided with gutters 4 that collect water from the roof 5 and lead it to the MMVF substrate 1 via a drain pipe 6 and a conduit 7 .
  • the conduit 7 is in fluid communication with the MMVF substrate 1 .
  • the conduit 7 may butt up against the MMVF substrate 1 , but preferably it is partly embedded in the MMVF substrate 1 in order to ensure that debris is not entering the conduit 7 .
  • the conduit 7 may be provided with apertures 8 to increase the fluid communication area between the conduit 7 and the MMVF substrate 1 .
  • the water holding capacity of a MMVF substrate, foam substrate and silt loam were tested in accordance with EN 13041-1999.
  • the MMVF substrate was a stone wool fibre product with a phenol-urea formaldehyde (PUF) binder and a non-ionic surfactant wetting agent.
  • the foam substrate was a polyurethane foam substrate. The results are shown in FIG. 2 .
  • the MMVF substrate has a maximum water content of 90% vol. When the MMVF substrate gives off water, it retains about 2-5% vol of water. This means that the MMVF substrate has a buffering capacity of 85-87% vol.
  • the foam substrate however has a maximum water content of 46-47% vol. When the foam substrate gives off water it retains about 27% vol of water.
  • the buffering capacity of the foam is therefore only 19-20% vol. This shows that the MMVF substrate has a higher maximum water content than the foam substrate, as well as a lower water retention level. Therefore the MMVF substrate has a higher water buffering capacity than the foam substrate.
  • the data shows that a foam substrate will need to be at least four times the volume of the MMVF substrate to buffer the same amount of water.
  • the maximum water content of the silt loam is similar to that of the foam substrate, and lower than the MMVF substrate.
  • the capillarity of the silt loam is much higher than that of the MMVF substrate, which means you need a suction pressure of several meters to withdraw water from the silt loam. This means that the soil will easily drain water from the MMVF substrate as soon as the soil is not saturated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Road Paving Structures (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
US14/356,509 2011-11-14 2012-08-24 Water drain reservoir Abandoned US20140314485A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11188974.7 2011-11-14
EP11188974 2011-11-14
PCT/EP2012/066559 WO2013072082A1 (en) 2011-11-14 2012-08-24 Water drain reservoir

Publications (1)

Publication Number Publication Date
US20140314485A1 true US20140314485A1 (en) 2014-10-23

Family

ID=46724449

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/356,509 Abandoned US20140314485A1 (en) 2011-11-14 2012-08-24 Water drain reservoir

Country Status (8)

Country Link
US (1) US20140314485A1 (ru)
EP (1) EP2780513B1 (ru)
CA (1) CA2854552C (ru)
DK (1) DK2780513T3 (ru)
EA (1) EA027204B1 (ru)
ES (1) ES2572085T3 (ru)
SI (1) SI2780513T1 (ru)
WO (1) WO2013072082A1 (ru)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150167286A1 (en) * 2012-01-30 2015-06-18 Rockwool International A/S Drain element
US20220127835A1 (en) * 2019-02-21 2022-04-28 ACO Severin Ahlmann GmbH & Co. Kommanditgesellschaft Drainage system, drainage units, and methods
WO2023099768A1 (en) * 2021-12-03 2023-06-08 Rockwool B.V. Storm water filtration system
US11846094B2 (en) * 2022-01-28 2023-12-19 Underground Industries LLC Systems and methods for underground storage of storm and other water sources

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2019270B1 (nl) * 2017-07-18 2019-01-30 Aco B V Infiltratiegoot, binnenwerk en infiltratiesysteem
NL2020137B1 (en) * 2017-12-20 2019-06-26 Drainblock B V Groundwater recharge system
WO2021130186A1 (en) * 2019-12-23 2021-07-01 Rockwool International A/S A storm water management system
CN115698445A (zh) 2020-04-03 2023-02-03 洛科威有限公司 排水方法
CA3203866A1 (en) 2020-12-30 2022-07-07 Rockwool A/S Solid state binder
WO2023156489A1 (en) 2022-02-15 2023-08-24 Rockwool A/S Plant growth system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383066A (en) * 1943-03-25 1945-08-21 Johns Manville Filter unit and method of making the same
US2880593A (en) * 1956-02-08 1959-04-07 Exxon Research Engineering Co Method and equipment for handling volatile liquid hydrocarbons
DE2155594A1 (de) * 1971-11-09 1973-08-02 Semperit Gmbh Vorrichtung zur versickerung von gereinigtem abwasser
WO2001023681A1 (en) * 1999-09-30 2001-04-05 Green Rock Oy Sewage filter
EP1961291A1 (en) * 2007-07-23 2008-08-27 Rockwool International A/S Mineral wool growth substrate and its use
US20120037836A1 (en) * 2009-03-19 2012-02-16 Rockwool International A/S Aqueous binder composition for mineral fibers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471786A (en) * 1989-12-08 1995-12-05 Rockwool International A/S Plant growing medium containing mineral fibers
JP3819031B2 (ja) 1995-08-30 2006-09-06 ロックウール・インターナショナル・アクティーゼルスカブ フラン樹脂を含有する親水性植物栽培用基体
DE29611700U1 (de) * 1996-07-05 1996-10-10 Fischer, Heiko, 61118 Bad Vilbel Großflächiger unterirdischer Regenwasserregulator
EP1382642A1 (en) 2002-07-15 2004-01-21 Rockwool International A/S Formaldehyde-free aqueous binder composition for mineral fibers
CA2576600C (en) 2006-02-08 2010-05-11 Brentwood Industries, Inc. Water drain tank or channel module
WO2007129202A1 (en) 2006-05-05 2007-11-15 Dynea Oy Hydrophilic binder for agricultural plant growth substrate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383066A (en) * 1943-03-25 1945-08-21 Johns Manville Filter unit and method of making the same
US2880593A (en) * 1956-02-08 1959-04-07 Exxon Research Engineering Co Method and equipment for handling volatile liquid hydrocarbons
DE2155594A1 (de) * 1971-11-09 1973-08-02 Semperit Gmbh Vorrichtung zur versickerung von gereinigtem abwasser
WO2001023681A1 (en) * 1999-09-30 2001-04-05 Green Rock Oy Sewage filter
EP1961291A1 (en) * 2007-07-23 2008-08-27 Rockwool International A/S Mineral wool growth substrate and its use
US20120037836A1 (en) * 2009-03-19 2012-02-16 Rockwool International A/S Aqueous binder composition for mineral fibers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150167286A1 (en) * 2012-01-30 2015-06-18 Rockwool International A/S Drain element
US9856638B2 (en) * 2012-01-30 2018-01-02 Rockwool International A/S Drain element
US20220127835A1 (en) * 2019-02-21 2022-04-28 ACO Severin Ahlmann GmbH & Co. Kommanditgesellschaft Drainage system, drainage units, and methods
WO2023099768A1 (en) * 2021-12-03 2023-06-08 Rockwool B.V. Storm water filtration system
US11846094B2 (en) * 2022-01-28 2023-12-19 Underground Industries LLC Systems and methods for underground storage of storm and other water sources
US20230407618A1 (en) * 2022-01-28 2023-12-21 Underground Industries LLC Systems and methods for underground storage of storm and other water sources
US11987971B2 (en) * 2022-01-28 2024-05-21 Underground Industries LLC Systems and methods for underground storage of storm and other water sources

Also Published As

Publication number Publication date
EA201490972A1 (ru) 2014-09-30
SI2780513T1 (sl) 2016-09-30
CA2854552A1 (en) 2013-05-23
WO2013072082A1 (en) 2013-05-23
EP2780513B1 (en) 2016-02-24
EA027204B1 (ru) 2017-06-30
DK2780513T3 (en) 2016-06-06
CA2854552C (en) 2017-11-07
EP2780513A1 (en) 2014-09-24
ES2572085T3 (es) 2016-05-30

Similar Documents

Publication Publication Date Title
EP2780513B1 (en) Water drain reservoir
US9856638B2 (en) Drain element
CA2882375C (en) Storm water delay device
EP2898148B1 (en) Drainage structure
US20230030765A1 (en) A storm water management system
EP2909384B1 (en) Point drain
WO2023156489A1 (en) Plant growth system
WO2021130178A1 (en) A flood defence barrier
JP2003160906A (ja) 透・排水性及び保水性を兼ね備えた舗装及びその施工方法
WO2022144111A1 (en) Method of draining water
JP2009002095A (ja) 浸透型スリット付きエコ側溝の敷設構造

Legal Events

Date Code Title Description
AS Assignment

Owner name: ROCKWOOL INTERNATIONAL A/S, DENMARK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EMBORG, MICHAEEL;REEL/FRAME:033260/0963

Effective date: 20140528

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION