WO2006105599A1 - Systeme de recyclage de l’eau - Google Patents

Systeme de recyclage de l’eau Download PDF

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Publication number
WO2006105599A1
WO2006105599A1 PCT/AU2006/000453 AU2006000453W WO2006105599A1 WO 2006105599 A1 WO2006105599 A1 WO 2006105599A1 AU 2006000453 W AU2006000453 W AU 2006000453W WO 2006105599 A1 WO2006105599 A1 WO 2006105599A1
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WO
WIPO (PCT)
Prior art keywords
grey water
tank
collection
compartment
water collection
Prior art date
Application number
PCT/AU2006/000453
Other languages
English (en)
Inventor
Roger Farquhar
Original Assignee
Lend Lease Corporation Limited
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
Priority claimed from AU2005901699A external-priority patent/AU2005901699A0/en
Application filed by Lend Lease Corporation Limited filed Critical Lend Lease Corporation Limited
Publication of WO2006105599A1 publication Critical patent/WO2006105599A1/fr

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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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001—Runoff or storm water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate

Definitions

  • the present invention generally relates to a household water recycling system.
  • the present invention resides in a grey water collection/storage/distribution system.
  • a system for nutrient distribution, and a grey water tank are also disclosed. While the invention is described in connection with household water recycling, the invention is not limited thereto and many aspects of the invention may be applied to commercial and municipal situations.
  • a system for urine distribution comprising: a grey water collection tank; a urine collection vessel communicable with the grey water collection tank; and an exit means for removing the contents of the grey water collection tank, wherein the system is operable to periodically or selectively introduce the contents of the urine collection vessel into the grey water collection tank and thereafter to remove at least some of the contents of the grey water collection tank.
  • the system operates to disperse the urine in a form which is greatly diluted by the grey water. This diluted urine may be pumped into a garden environment to enable the flora to take up the nutrients from the urine.
  • the urine separation from other human waste may take place at the toilet pan by known urine separation pans.
  • the urine collection vessel may be provided within the grey water collection tank or alternatively may be separate.
  • the system may be operable to facilitate periodic or selective collection of urine. Alternatively, the system may operate to collect all urine emanating the household to which the system is connected.
  • the system may be dedicated to a single household or to multiple households or to a utilities block in a school or sporting facility.
  • the grey water collection tank preferably collects grey water which is used water from a household bathroom e.g. basin, shower, and a household laundry.
  • the grey water tank may provide for filtering of the grey water.
  • the grey water tank may also have a back flushing facility to assist with the removal of particular matter.
  • the grey water tank is connected to the sewer to accommodate the back flushing operation and/or any malfunction of the tank or system.
  • the exit means may comprise a pump or alternatively a valve whereupon opening the valve allows the contents to exit under gravity.
  • the system may be programmed for distribution of the urine at predetermined intervals. Alternatively, the system may operate as desired by the user for distribution of the urine. The activation of the pump to remove the contents of the grey water tank may occur a few minutes after the introduction of the urine into the grey water collection tank.
  • a grey water collection system comprising: a tank for collection of grey water, the tank having a sewer outlet; and a blower for introduction of air into the tank, wherein the system is operable to operate the blower to raise the level of liquid in the tank above the sewer outlet.
  • the introduction of air into the liquid in the grey water tank is preferably in the form of bubbles which percolates through the tank to dislodge any detritus within the tank to the surface where it exits the tank through the sewer outlet.
  • the tank includes a filter compartment, for example in the form of a sand bed. The air preferably percolates through the filter compartment to dislodge the detritus.
  • the blower operates when the level within the tank reaches a predetermined level.
  • the blower may operate once the level of liquid within the tank reaches the level of the sewer outlet.
  • the operation of the blower (back flushing) may be followed by pumping out of the contents of the tank, for example into a garden environment.
  • the tank may comprise a filter compartment together with a grey water collection compartment.
  • Liquid collection apparatus may be disposed within the filter compartment and this liquid collection apparatus may take the form of one or more pipes e.g. fine mesh polypropylene pipes.
  • a valve may be provided between the liquid collection apparatus and the grey water collection compartment to cut off the flow therebetween. On commencement of the back flushing operation, the valve may be closed to shut off the connection between the liquid collection apparatus and the grey water collection compartment. The liquid collection apparatus may then be used to distribute the air from the blower.
  • a pump may be provided in the grey water collection compartment to empty the contents thereof as desired.
  • a single pump may be provided with sensors to detect the level of liquid within the tank.
  • the pumping operation may be regularly programmed, irrespective of whether the level of liquid within the tank reaches a predetermined level. For example, the pumping could occur regularly every two days to eliminate the build up of stagnant grey water within the tank.
  • the grey water collection compartment may also include a grey water disinfection device such as an electrolytic chlorinator.
  • a grey water collection tank which incorporates a disinfection device for disinfecting the stored grey water.
  • the disinfection device comprises an electrolytic chlorinator.
  • the device may comprise a chlorine metering device for delivery of chlorine to the stored grey water.
  • Other electromechanical, electrochemcial or chemical devices may act as the disinfection device.
  • the grey water tank may further comprise a filter for filtering the grey water on entry to the tank, prior to disinfection.
  • a filter for filtering the grey water on entry to the tank and a grey water collection compartment for collection of grey water after passing through the filter compartment.
  • the grey water collection compartment may contain the disinfection device.
  • the disinfection device may be provided in an auxiliary compartment between the filtration compartment and the grey water collection compartment. Any of the features described above in connection with the first two aspects of the invention, may be applied to the third aspect.
  • a grey water collection tank including: an antechamber; a grey water storage compartment; a valve controlling the liquid flow between the antechamber and the storage compartment; a chlorinating device provided in communication with the antechamber, wherein the valve is adjustable to adjust the flow rate of chlorinated liquid entering the storage compartment.
  • the valve may be manually adjustable.
  • the chlorinating device may be an electrolytic chlorinator.
  • a screening device for grey water including: a screen having one or more sloped walls converging downwardly towards an opening; a distributing conduit for dispersing grey water onto the one or more walls substantially evenly; and a waste collection conduit adjacent the opening.
  • the screen is an inverted cone or a frustocone with an opening at the lower end.
  • inverted pyramid shapes are also considered within the scope of the invention.
  • the opening is preferably a central opening, with the waste collection conduit connected directly to the sewer.
  • the dispersing conduit is preferably in the form of a loop which may be circular or square.
  • the dispersing conduit is suitably provided with a series of openings to distribute the grey water onto the surface of the screen.
  • a screening device for grey water including: a screen having one or more sloped walls converging downwardly towards an opening; a dispersing conduit in the form of a loop for dispersing grey water onto the one or more walls; and a waste collection conduit adjacent the opening.
  • a modular grey water collection system wherein grey water tanks of the system include a filter compartment of a standard size and a grey water collection compartment wherein the size of the grey water collection compartment is selectable from a variety of sizes, each of which is compatible with the filter compartment.
  • the grey water tanks may include any of the features set out above in connection with the first five aspects of the invention.
  • a grey water distribution system comprising: a distribution network for distribution of grey water across an arable or garden site, the distribution network having a grey water inlet; and a sub-layer of zeolite provided below the arable or garden site.
  • Zeolites are a group of minerals which have an alumino-silicate structure which is negatively charged and attracts the positive cations that reside within. Zeolites have large vacant spaces or cages in their structures that allow space for large cations such as sodium, potassium, barium and calcium and even relatively large molecules and cations groups such as water, ammonia, carbonate irons and nitrate irons. Zeolites make excellent removers of toxins.
  • Zeolites are characterized by their ability to lose and absorb water without damage to their crystal structures.
  • the preferred form of zeolite for the present invention is clinoptilolite which is locally mined in New South Wales Australia.
  • other zeolites may also perform satisfactorily including synthetic zeolites.
  • the layer of zeolite may be approximately 25 mm thick. As discussed above, the zeolite has a negative charge and its porous structure and high cation capacity allows it to readily absorb and retain nutrients, heavy metals and salt from any water that comes in contact with it.
  • the grey water distribution system may further comprise a non-permeable substrate below the sub-layer of zeolite.
  • the substrate may be in the form of a plastic layer.
  • the plastic layer may be comprised of interconnectible components.
  • the substrate is provided in the form of modular trays which are able to be snap-fitted together.
  • the modular trays may include integral distribution manifolds forming part of the distribution network.
  • the modular trays may also include integral guttering for drainage of excess grey water.
  • the modular trays may be of any shape but are preferably rectilinear. Some modular trays may be shaped to form aesthetic edging for the arable or garden site.
  • the distribution network may further comprise a series of distribution pipes which are disposed above the substrate.
  • the system may further include a grey water storage tank where grey water from household or commercial premises is temporarily stored.
  • the grey water may be periodically or selectively emptied from the tank. Alternatively, the grey water may come directly from the household or commercial premises.
  • the distribution system may further include drainage to collect excess liquid from the arable or garden site. The drainage may empty into a french drain provided below the zeolite in the site or adjacent location. The french drain allows the water to percolate into the sub-grade of the site.
  • the zeolite may be incorporated into porous bags which are disposed in a sub-layer of the site.
  • the bags may be comprised of perforated or porous non-biodegradable plastic.
  • the bags may be sewn to define a series of tubes containing the zeolite.
  • the zeolite bags may be disposed below a grass verge i.e. between a footpath and kerb.
  • the verge may be graded to slope downwardly from the footpath to the kerb and accordingly, a drain may be provided extending along a lower edge of the verge to collect excess liquid.
  • This preferred form of the invention may be used to distribute stormwater from the roof of an adjacent household as well as for grey water distribution.
  • Figure 1 is a flow chart of a household water recycling system in accordance with a preferred embodiment of the present invention
  • Figure 2 is a schematic illustration of a household with adjacent garden sites B and C;
  • Figure 3 is a detailed view of A of Figure 2, being a first preferred embodiment of a grey water storage tank;
  • Figure 4a is a perspective view of a separation device for separation of froth and/or particulate matter from liquid in grey water;
  • Figure 4b is a top view of the device of Figure 4a;
  • Figure 4c is a sectional view through the separation device illustrating the profile
  • Figure 5 is a sectional view through the grey water tank of Figure 3.
  • Figure 6 is a further sectional view through the grey water tank of Figure 3.
  • Figure 7 is a detailed view of B from Figure 2 showing a rear garden site of the household;
  • Figure 8 is a longitudinal sectional view through a second preferred embodiment of a grey water tank
  • Figure 9 is top view of the grey water tank of Figure 8.
  • Figure 10 is a longitudinal sectional view through a filter compartment of the tank of Figure 8, the cross hatching indicating the sand filter;
  • Figure 11a is a cross-sectional view through A-A of Figure 10;
  • Figure 11 b is a cross-sectional view through B-B of Figure 10;
  • Figure 11c is a cross-sectional view through C-C of Figure 10;
  • Figure 11d is a cross-sectional view through D-D of Figure 10.
  • Figure 11e is a cross-sectional view through E-E of Figure 10;
  • Figure 12 is a detailed view of the garden site C of Figure 2;
  • Figure 13 is a schematic plan view of the garden site of Figure 12.
  • Figure 14 is a schematic diagram of the control system for the operation of the grey water tank of Figure 8.
  • FIG. 1 is a flow chart of a household water recycling system, the features of which will become apparent from the following discussion.
  • FIG 2 provides an overview of the main components of the household water recycling system.
  • Figure 2 depicts the household (40) in which are provided the typical modern conveniences including toilet (42), kitchen (44), bathroom (46) and laundry (48).
  • the black water (water from toilet and kitchen) will be collected in a conventional pipe network and transported to a sewerage treatment plant.
  • this conventional sewage pipe network can be downsized because it is estimated that the volume of sewage will be reduced by 75%.
  • certain components of the sewage system can be reduced in size.
  • grey water is collected from the bathroom and laundry and transported to the grey water storage tank A. It is intended that the grey water storage tank will be located adjacent to the flood gulley riser (51 ) that serves the kitchen outlet and connected thereto (see Figure 3).
  • the yellow water (urine) will be collected in a waste separation toilet pan.
  • a waste separation toilet pan Such pans are already known and available from Sweden and Germany.
  • urine may be collected from a urinal.
  • the urine is transported via a pipe (50) to a urine collection vessel (9) provided within the tank A.
  • the separation device has a first portion (52), a second convexly curved portion (54) which defines a knee, and a third concavely curved portion (56).
  • the three portions make up a liquid guide over which the liquid flows.
  • the liquid guide has an outer periphery with longitudinally extending channels (58) formed therein. The channels are transversely spaced and have a restricted opening (60) compared to the maximum width of each channel.
  • the liquid guide may be constructed from a shaped sheet of polypropylene.
  • the surface tension of the liquid within the grey water maintains contact with the surface of the guide around the knee of the guide and through to the third portion.
  • detritus such as hair, lint, mucous, soap suds, body fats etc floating on the liquid water would also flow over the first portion (52) of the guide but once reaching the knee, will separate from the guide and fall under gravity.
  • a strategically placed divider (62) will separate the detritus from the liquid and direct it to the flood gully riser (51 ) of the sewage system.
  • the liquid flowing along the guide will pass over the grey water diffuser (4) (see Figure 3) and onto the filtration compartment (5) of the grey water tank A.
  • the filtration compartment may include sand mixed with zeolite.
  • a liquid collection apparatus Contained within the filtration compartment is a liquid collection apparatus comprising six radially arranged polypropylene collection pipes (6) (see Figure 6) which are connected to a butterfly valve (7).
  • the polypropylene collection pipes (6) are comprised of a fine mesh and are located in the base of the filtration compartment to capture the filtered liquid and transfer it via the butterfly valve (7) to the grey water collection compartment (8) below the filtration compartment (5).
  • the grey water collection compartment (8) has two pumps (14, 16).
  • the first pump (14) is provided to empty the compartment (8) to irrigate the first and second garden sites B, C.
  • the system operates so that every two days, the grey water collection compartment (8) is emptied to the level of the pump (14).
  • the pump (14) sequentially irrigates sites B and C on alternate operations so that the sites will be watered every four days.
  • the toilets cistern pump (16) is disposed below the pump (14) and thus a quantity of water e.g. 100 litres is always available for toilet flushing.
  • a float switch located in the cistern of the toilet (42) activates the toilet cistern pump (16) to fill the cistern on demand.
  • the household water recycling system may be provided with a controller (not shown) to control the functions of the grey water tank A.
  • the controller may be programmed to periodically activate a back-flush cycle.
  • the flushing cycle will commence by closing the butterfly valve (7) which will occur immediately following the evacuation of the grey water storage tank (8) by the irrigation pump (14).
  • the flush cycle can operate once the liquid level in the tank has risen to a predetermined level (approximately two days inflow), preferably up to the level of the emergency overflow and back-flush outlet (2).
  • the controller activates the air blower (11 ) and air will be forced under pressure into the polypropylene collection pipes (6) and percolate up through the sand and zeolite in the filtration compartment (5).
  • the presence of air will cause the liquid to overflow into the emergency outlet (2) and therefore any detritus dislodged in the process will overflow into the sewer.
  • the butterfly valve will open and the water will gradually drain back through the sand and zeolite layer into the storage tank (8) via the collection pipes (6).
  • Table 1 sets out an exemplary operational sequence.
  • urine may be collected in a waste separation toilet pan and transported via a pipe (50) to the urine collection vessel (9) provided in the top of the grey water tank A. All urine may be collected for subsequent recycling. Alternatively, urine may be periodically or selectively collected with the remainder reverting to the sewage system.
  • the valve (64) at the base of the urine collection vessel (9) operates to collect urine when required. Excess urine entering the vessel (9) post this event will discharge to the sewer via an overflow pipe (13).
  • the valve (64) in the bottom of the urine collection vessel (9) will automatically be opened by the controller. This event occurs a few minutes before the irrigation pump (14) is activated and thus gives the urine time to decant and mix with grey water in the storage tank A.
  • the urine is dispensed directly into the grey water collection compartment (8) through the pipe (12).
  • the pump (14) is operated, the contents of the grey water tank will be dispersed to either garden site B 1 C. Layers of zeolite may be provided in these garden sites as will be subsequently explained and the urine will be spread amongst and absorbed by the zeolite. It is thought that plants in contact with such a zeolite layer can access the nutrients on demand.
  • Figures 8 to 11 illustrate a second embodiment of the grey water tank A 1 . Since the grey water tank has a number of features in common with the tank of the first embodiment like numerals represent like parts, except that the prime symbol (') is used to indicate that the part has been adapted for the second embodiment.
  • the separation device has also been replaced by a screening device which includes a grey water distribution conduit in the form of a rectangular loop 35 (see Figure 11 a).
  • the distribution conduit is perforated along its length to distribute, in a substantially even fashion, grey water on the top of a mesh screen 36.
  • the screen 36 is an inverted cone shape with a central aperture, under which the inlet to the sewer and emergency outlet 2' is provided.
  • the liquid will pass through the screen and onto the sand filter provided below.
  • detritus will be collected on the screen and washed towards the central opening in the screen and into the sewer and emergency outlet 2'.
  • the filter contains primarily sand and no longer contains zeolite.
  • the backflush operation operates in a similar manner to the first embodiment.
  • a controller initiates the backflush cycle on a periodic basis.
  • the solenoid valve T is closed to cut off flow into the grey water collection compartment 8'.
  • the filtration compartment 5' of the tank fills up, it begins to overflow into the sewer and emergency outlet 2' whereupon a sensor will detect the flowing liquid and switch on the air blower 11 '.
  • the air blower causes the liquid level in the filtration compartment to further rise and detritus which generally floats to the top will be carried out through the sewer and emergency outlet 2'.
  • the air blower 11' is switched off and the solenoid valve is opened to permit liquid to flow into the grey water collection compartment 8'.
  • a non-return valve 43 is provided downstream of the sewer and emergency outlet 2'.
  • the tank also has an auxiliary chamber 38 which extends lengthwise along the side of filtration compartment 5'.
  • the auxiliary chamber receives the flow from filtration compartment through solenoid valve T .
  • an electrolytic chlorinator which serves to chlorinate the grey water prior to entry into the grey water collection compartment 8'.
  • the flow from the auxiliary chamber can be adjusted by an adjustable flow rate valve 41. Access to the valve 41 is provided through the top of the tank. Thus, the level of chlorine in the grey water collection compartment 8' may be adjusted by adjusting the flow rate through valve 41.
  • the base of the filtration compartment 5' is provided with radially extending ribs 37 to strengthen the base to support the sand filter.
  • the embodiment of Figure 8 has a single pump 16' at the base of the grey water collection compartment 8'.
  • the pump may be accessed through maintenance access 33 as seen in Figure 9.
  • the operation of the pump is controlled by a central controller D having a control pad depicted in Figure 14.
  • the grey water is pumped to various usages including one or more toilets, a front garden area C and a rear garden area B (refer to Figure 2).
  • the controller D is programmed so that grey water is suppled to garden areas B and C at alternate periods by controlling operation of the solenoid valves no 1 and no 2. opening of these valves might occur on alternate days.
  • the controller closes the valves no 1 or no 2, as the case may be, to finish watering of these areas.
  • the toilet is supplied with grey water on demand.
  • a junction E interconnects the potable water supply to be used for flushing the toilet if required.
  • FIG. 7 illustrates the site B.
  • the site includes an irrigation bed (70) over which a moveable cover (72) may extend.
  • the irrigation bed might be an impermeable bed. Excess liquid deposited onto the irrigation bed (70) is captured in a sump (21 ) and is transferred via a stormwater pipe to irrigate site C.
  • Figure 7 also depicts a sub-grade irrigation system for stormwater in excess of that collected by the rainwater tank.
  • the excess stormwater is collected by a wet sump (76) which is connected to aquifers (78) in the form of agricultural drains filled with zeolite which permits the excess stormwater to percolate into the sub-grade.
  • the wet sump (76) is also connected to a wet sump (29) at site C as depicted in Figure 12.
  • a layer of zeolite which is approximately 25 mm thick is spread across the surface of the irrigation bed (70).
  • the zeolite can readily absorb and retain nutrients, heavy metals and salt from any water that comes in contact with it.
  • the irrigation bed (70) is built on a layer of semi-compacted sand which is laid with a hydraulic grade towards the grated sump (21 ). Excess water is collected in the grated sump which drains to alternative site C.
  • the cover (72) comprises a sheath in the form of clear plastic sheeting over a steel frame (84).
  • the frame is in the form of a series of gables which may collapse in concertina fashion.
  • the grey water is delivered through the pipes of the distribution network into the zeolite layer. It is envisaged that a large proportion of the water will be absorbed by the zeolite layer and then transpired to the atmosphere by the lawn.
  • the cover collects the transpired liquid and evaporated liquid for reuse.
  • FIG 12 illustrates the site C between the household and the road (22).
  • Site C is essentially the grass verge between the footpath (27) and the road (22).
  • Water is collected from the sump (21 ) outside B. Any excess stormwater at wet sump (76) is drained through pipe (28) to a wet sump (29).
  • the controller will activate the irrigation pump (14 or 16') in the grey water tank A or A' to discharge the contents periodically onto site C.
  • the invert level of the pipe (28) is approximately 150 mm above the floor of the wet sump (29).
  • An irrigation supply pipeline (30) has its inlet approximately 50 mm above the floor of the sump (29) to convey liquid to a perforated distribution manifold.
  • the distribution manifold (94) (see Figure 13) is sewn into a pervious bag.
  • the bag (25) is located approximately 200 mm beneath the lawn of the grass verge (26) with a hydraulic grade towards the kerb.
  • the bag (25) is sewn to form a series of tubes that extend transversely to the footpath. These tubes are filled with zeolite.
  • the liquid migrates along pipe (30) to the distribution manifold (94) and migrates into the zeolite layer of the bag (25). Any excess liquid that is not absorbed by the zeolite will gravitate to the agricultural drain (24) and end up in the wetlands (see Figure 1 ).
  • the flow rate into the sump (29) is such that the sump begins to fill up, excess liquid discharges through a stormwater outlet (31 ) to the stormwater main where it is conveyed to the wetlands.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

La présente invention concerne un système de recueil des eaux ménagères qui comprend un réservoir (A, A’) pour recueillir des eaux ménagères ayant un orifice de sortie d’égout (2, 2’) et un dispositif soufflant (11, 11’) pour introduire de l’air dans le réservoir. Le dispositif soufflant (11, 11’) est actionné pour augmenter le niveau dans le réservoir au-dessus de l’orifice de sortie d’égout (2, 2'). En outre, le réservoir de recueil des eaux ménagères peut comprendre un dispositif de désinfection (39) pour désinfecter les eaux ménagères stockées. En particulier, le réservoir de recueil des eaux ménagères (A’) peut comprendre une antichambre (38), un compartiment de stockage des eaux ménagères (8') et une soupape (41) commandant le flux de liquide entre l’antichambre et le compartiment de stockage. Un dispositif de chloration (39) peut être fourni en communication avec l’antichambre (38). Le débit à travers la soupape (41) peut être ajusté. Dans un dispositif de filtrage pour les eaux ménagères, une grille (36) a une ou plusieurs parois inclinées convergeant vers le bas en direction d’une ouverture et un conduit de distribution disperse les eaux ménagères sur la ou les parois. Un conduit de recueil des déchets (2’) est adjacent à l’ouverture. Le système d’eaux ménagères peut aussi fonctionner pour introduire périodiquement ou sélectivement le contenu d’un collecteur d’urine (9) dans le réservoir de recueil des eaux ménagères. Le système peut être modulaire, les réservoirs d’eaux ménagères du système comprenant un compartiment de filtre (5’) d’une taille standard et un compartiment de recueil des eaux ménagères (8’) qui peut être choisi parmi une variété de tailles, chacune étant compatible avec le compartiment de filtre (5’). Les eaux ménagères peuvent être distribuées sur le site d’un jardin ayant une sous-couche de zéolite.
PCT/AU2006/000453 2005-04-06 2006-04-05 Systeme de recyclage de l’eau WO2006105599A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2005901699A AU2005901699A0 (en) 2005-04-06 Water recycling system
AU2005901699 2005-04-06

Publications (1)

Publication Number Publication Date
WO2006105599A1 true WO2006105599A1 (fr) 2006-10-12

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CN107893466A (zh) * 2017-11-15 2018-04-10 张晓彬 一种农业有机肥集取装置
CN110122277A (zh) * 2019-07-02 2019-08-16 余姚心智新能源科技有限公司 一种基于海绵城市的公园蓄水供水深井
CN112942526A (zh) * 2021-01-18 2021-06-11 大连卓兴科技发展有限公司 一种用于设施农业的水资源回收系统及方法
CN113006263A (zh) * 2021-02-02 2021-06-22 上海第二工业大学 一种用于真空排污系统的污水收集井
CN114232754A (zh) * 2021-12-31 2022-03-25 吴道疆 一种雨水溢流装置

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GB2053885A (en) * 1979-07-02 1981-02-11 Small S H Waste disposal apparatus
US4332041A (en) * 1980-11-24 1982-06-01 The Boeing Company Pressurized drain for toilet waste tank
US6206647B1 (en) * 1996-10-10 2001-03-27 Intelligent Environmental Systems, B.V. Waste water disposal system
US6132627A (en) * 1996-12-18 2000-10-17 Kurita Water Industries Ltd. Treatment method for water containing nitrogen compounds
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GB2350357A (en) * 1999-05-26 2000-11-29 Hynes Patricia Rosemary Water treatment apparatus
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107893466A (zh) * 2017-11-15 2018-04-10 张晓彬 一种农业有机肥集取装置
CN110122277A (zh) * 2019-07-02 2019-08-16 余姚心智新能源科技有限公司 一种基于海绵城市的公园蓄水供水深井
CN112942526A (zh) * 2021-01-18 2021-06-11 大连卓兴科技发展有限公司 一种用于设施农业的水资源回收系统及方法
CN113006263A (zh) * 2021-02-02 2021-06-22 上海第二工业大学 一种用于真空排污系统的污水收集井
CN113006263B (zh) * 2021-02-02 2024-03-08 上海第二工业大学 一种用于真空排污系统的污水收集井
CN114232754A (zh) * 2021-12-31 2022-03-25 吴道疆 一种雨水溢流装置
CN114232754B (zh) * 2021-12-31 2023-12-12 吴道疆 一种雨水溢流装置

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