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WO2004020748A1 - Rainwater collection, storage and supply system - Google Patents

Rainwater collection, storage and supply system Download PDF

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Publication number
WO2004020748A1
WO2004020748A1 PCT/SG2003/000198 SG0300198W WO2004020748A1 WO 2004020748 A1 WO2004020748 A1 WO 2004020748A1 SG 0300198 W SG0300198 W SG 0300198W WO 2004020748 A1 WO2004020748 A1 WO 2004020748A1
Authority
WO
WIPO (PCT)
Prior art keywords
rainwater
storage
collection
storage means
supply system
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.)
Ceased
Application number
PCT/SG2003/000198
Other languages
French (fr)
Inventor
Pong Kit Chan
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.)
BTB WALLERCODE Sdn Bhd
SOH KAR LIANG
Original Assignee
BTB WALLERCODE Sdn Bhd
SOH KAR LIANG
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 BTB WALLERCODE Sdn Bhd, SOH KAR LIANG filed Critical BTB WALLERCODE Sdn Bhd
Priority to AU2003256239A priority Critical patent/AU2003256239A1/en
Publication of WO2004020748A1 publication Critical patent/WO2004020748A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E03B2001/047—Greywater supply systems using rainwater
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108—Rainwater harvesting

Definitions

  • the present invention relates to a system to collect, by means of atmospheric pressure, store and supply of rainwater, for non-hygienic water usage in domestic and industrial.
  • the conventional rainwater collection system has gutter x mounted under the edge of a building's roof. At least one downpipe is connected to the gutter. At the other free end of the downpipe is a tank to store the rainwater. The rainwater 15 is taken out for usage by using a bucket or through a water tape.
  • a water pump is used to supply and to store rainwater at higher level of the building 20 respectively.
  • the water pump needs electricity to function, which cost money.
  • the water pump might need maintenance, which cost money too. If the water pump fails, rainwater supply may ; • be cut off.
  • the present invention seeks to improve on previous systems.
  • One of the objects of this invention is to reduce the cost of implementing a rainwater collection, storage and supply system by using the existing drainage system instead of modify the 5 existing roof.
  • the rainwater collection, storage and supply system will connect all the existing downpipes to a new pipe, which is connected to a rainwater tank.
  • Another object of this invention is to collect, store and
  • This invention uses atmospheric pressure to transfer collected rainwater from
  • this invention will avoid additional cost of a water pump's electricity and maintenance bills.
  • Still another object of the invention is to provide an effective rainwater collection system to reduce the rainwater flow into the river so as to reduce the flood problem.
  • a rainwater collection, storage and supply system for j rainwater falling onto the roof of a building comprising of: rainwater collection means mounted on the said roof; rainwater
  • connection means for connectings said collection means and storage means; supply means to supply the collected rainwater from said rainwater storage means for usage; and characterised in that the system uses the
  • connection means comprises of: at least one downpipe connected to said gutter; at least one rainwater collection pipe connected to said rainwater storage means; and a dirt collection chamber for connecting said downpipe and said rainwater collection pipe together to form a generally U- shaped connection means.
  • said dirt collection chamber further comprises of: a detachable filter mounted in between of said rainwater collection pipe and said dirt collection chamber to filter out any dirt which is bigger than a predetermined size; and a detachable cover at the bottom open end of said dirt collection chamber for flashing out the dirt collected in said dirt collection chamber
  • Preferably said system further comprising of water supply backup means during long drought.
  • Figure 1 shows rainwater collection, storage and supply system.
  • FIG. 1 shows a rainwater collection, storage and supply system, generally designated 10, has a rainwater' collection means which is gutter (21) rigidly mounts under the edge of a building's roof (22).
  • the said gutter is connected with a connection means which comprises of at least one downpipe (23) ; at least one rainwater collection pipe (27) and a dirt collection chamber (24).
  • the downpipe (23), rainwater collection pipe (27) and the dirt collection chamber collectively forming a generally U-shaped connection means.
  • the downpipe (23) is connects to the gutter (21) at various locations of the roof (22) .
  • the other end of the downpipe (23) is connects to said dirt collection chamber (24) .
  • the bottom open end of the dirt collection chamber (24) is covers by a detachable cover (25) .
  • a detachable filter (26) is positions at the top end of the dirt collection chamber (24).
  • a rainwater collection pipe (27) is connects between the detachable filter (26) and a rainwater storage means (28) through a rainwater inlet (29) of the rainwater storage means (28), whereby the said top end of the rainwater collection pipe (27) is positions at a predetermine height, which is not higher than the bottom of the gutter (21) and same height with an overflow outlet (30) of the rainwater storage means (28).
  • the connection of the downpipe (23), the rainwater collection pipe (27) and the detachable cover (25) to the dirt collection chamber (24) are preferably tight sealed to prevent leakage of the water through the connection.
  • each end of a connection pipe (31) is interconnects close to the bottom of the two adjacent rainwater storage means (28) .
  • a main water inlet (32) is positioned at a predetermine height- (50) which is sufficient enough to supply water for non-hygienic uses, whereby said height is controlled by a water level controller (40) mounted at said main water inlet (32) .
  • the main water inlet (32) is connects to a main water tank (33) by a main water supply pipe (34) .
  • the main water supply pipe (34) is also extended down for other hygienic uses.
  • Water supply outlet (35) is positions close to the bottom of the rainwater storage means (28).
  • a rainwater supply pipe (36) is connects between the water supply outlet (35) for non-hygienic uses.
  • the water level controller (40) will turn off the main water supply when the water has reaches a predetermine level (51) in the main water tank (33) .
  • a clean water overflow outlet (38) is position slightly higher than a clean water inlet (42) to discharge any excess water in the main water tank (33) .
  • the rainwater When rainwater falls onto the roof (22), the rainwater will flow onto the gutter (21) , which will channel the rainwater to at least one downpipe (23) . By means of atmospheric pressure, the rainwater will flow down through the downpipe (23) to the dirt collection chamber (24) and up to the rainwater collection pipe (27) . When there is water inside a generally U shaped pipe, naturally when the water inside the downpipe (23) gets higher, this will consequently raise up the water filled in the rainwater collection pipe (27) at the same time, whereby the water level at each end is always level.
  • the detachable filter (26) is positions between the dirt collection chamber (24) and the rainwater collection pipe
  • the detachable filter (26) will filter out any dirt bigger than a predetermined size. Those filtered dirt will settle down in the dirt collection chamber (24) .
  • the detachable cover (25) is positions at the bottom open end of the dirt collection chamber (24) . To remove the filtered dirt, the detachable cover (25) is removed from the dirt collection chamber (24) . Water inside the downpipe (23) and the rainwater collection pipe (27) will flash out the dirt through the open end of the dirt collection chamber (24) . Since the rainwater inlet (29) of the rainwater storage means
  • the rainwater overflow outlet (30) is level with the rainwater inlet (29) .
  • the rainwater level in the rainwater storage means (28) is higher than the rainwater inlet (29) , the rainwater will flow out of the rainwater storage means (28) through the overflow outlet (30) .
  • the water level controller When the water in the rainwater storage means (28) used below the predetermine level (50) , automatically the water level controller will activated to enable the water from the main water tank (33) to supply to the rainwater storage means (28) and to maintain said water in the rainwater storage means (28) at the predetermine level (50) .
  • no additional water will be filled up when the rainwater level drops no lower than a predetermined level (50) in the rainwater storage means (28) .
  • clean water from the main water tank (33) will fill up the rainwater storage means (28) to the predetermined level (50) in order to ensure a consistency supply of water for non-hygienic uses.
  • the main water tank (33) is installed higher than the rainwater storage means (28) .

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)
  • Environmental & Geological Engineering (AREA)
  • Sewage (AREA)

Abstract

The present invention relates to a system that uses existing drainage system to reduce water bill by collecting, storing and supplying rainwater for non-hygienic domestic and industrial water usage, by means of atmospheric pressure. By using the existing drainage system, this invention will reduce the cost to implement the system. To store the rainwater by means of atmospheric pressure will avoid additional cost to power and maintain the water pump.

Description

Rainwater Collection, Storage and Supply System
Field of Invention
5 The present invention relates to a system to collect, by means of atmospheric pressure, store and supply of rainwater, for non-hygienic water usage in domestic and industrial.
Background to the Invention
10
The conventional rainwater collection system has gutter x mounted under the edge of a building's roof. At least one downpipe is connected to the gutter. At the other free end of the downpipe is a tank to store the rainwater. The rainwater 15 is taken out for usage by using a bucket or through a water tape.
In prior art GB2314367 and GB2286849, a water pump is used to supply and to store rainwater at higher level of the building 20 respectively. The water pump needs electricity to function, which cost money. The water pump might need maintenance, which cost money too. If the water pump fails, rainwater supply may ;• be cut off.
25 In prior art GB2344132, rainwater is collected from the roof and goes straight into water tanks installed right under the roof. Although no electric pump is required, this might be costly for an existing building. The building's roof needs to be modified to fit in the rainwater collector, whereby this
30 will cause the possibility of leakage problem to the roof and the gutter and the rainwater will directly leak into the building. The present invention seeks to improve on previous systems. One of the objects of this invention is to reduce the cost of implementing a rainwater collection, storage and supply system by using the existing drainage system instead of modify the 5 existing roof. The rainwater collection, storage and supply system will connect all the existing downpipes to a new pipe, which is connected to a rainwater tank.
Another object of this invention is to collect, store and
10 supply rainwater without the use of water pump. This invention uses atmospheric pressure to transfer collected rainwater from
~; gutter down to a dirt collection chamber and up to a rainwater tank. Therefore, this invention will avoid additional cost of a water pump's electricity and maintenance bills.
15
Still another object of the invention is to provide an effective rainwater collection system to reduce the rainwater flow into the river so as to reduce the flood problem.
20 Summary Of The Invention
A rainwater collection, storage and supply system for j rainwater falling onto the roof of a building comprising of: rainwater collection means mounted on the said roof; rainwater
25 storage means for storing said rainwater collected from said rainwater collection means; connection means to connects said collection means and storage means; supply means to supply the collected rainwater from said rainwater storage means for usage; and characterised in that the system uses the
30 atmospheric pressure to transfer rainwater from said rainwater collection means to said storage means and to maintain the water level in said storage means. Preferably said connection means comprises of: at least one downpipe connected to said gutter; at least one rainwater collection pipe connected to said rainwater storage means; and a dirt collection chamber for connecting said downpipe and said rainwater collection pipe together to form a generally U- shaped connection means.
Preferably said dirt collection chamber further comprises of: a detachable filter mounted in between of said rainwater collection pipe and said dirt collection chamber to filter out any dirt which is bigger than a predetermined size; and a detachable cover at the bottom open end of said dirt collection chamber for flashing out the dirt collected in said dirt collection chamber
Preferably said system further comprising of water supply backup means during long drought.
Brief Description of the Drawings
Figure 1 shows rainwater collection, storage and supply system.
Detailed Description of the Invention
The system to collect, store and supply of rainwater according to the present invention may be best understood with reference to the drawing and the accompanying detail description.
With reference now to the drawing, Figure 1 shows a rainwater collection, storage and supply system, generally designated 10, has a rainwater' collection means which is gutter (21) rigidly mounts under the edge of a building's roof (22). The said gutter is connected with a connection means which comprises of at least one downpipe (23) ; at least one rainwater collection pipe (27) and a dirt collection chamber (24). The downpipe (23), rainwater collection pipe (27) and the dirt collection chamber collectively forming a generally U-shaped connection means. The downpipe (23) is connects to the gutter (21) at various locations of the roof (22) . The other end of the downpipe (23) is connects to said dirt collection chamber (24) . The bottom open end of the dirt collection chamber (24) is covers by a detachable cover (25) . A detachable filter (26) is positions at the top end of the dirt collection chamber (24). A rainwater collection pipe (27) is connects between the detachable filter (26) and a rainwater storage means (28) through a rainwater inlet (29) of the rainwater storage means (28), whereby the said top end of the rainwater collection pipe (27) is positions at a predetermine height, which is not higher than the bottom of the gutter (21) and same height with an overflow outlet (30) of the rainwater storage means (28). The connection of the downpipe (23), the rainwater collection pipe (27) and the detachable cover (25) to the dirt collection chamber (24) are preferably tight sealed to prevent leakage of the water through the connection.
When more than one rainwater storage means (28) is use for rainwater storage, each end of a connection pipe (31) is interconnects close to the bottom of the two adjacent rainwater storage means (28) . A main water inlet (32) is positioned at a predetermine height- (50) which is sufficient enough to supply water for non-hygienic uses, whereby said height is controlled by a water level controller (40) mounted at said main water inlet (32) . The main water inlet (32) is connects to a main water tank (33) by a main water supply pipe (34) . The main water supply pipe (34) is also extended down for other hygienic uses. Water supply outlet (35) is positions close to the bottom of the rainwater storage means (28). A rainwater supply pipe (36) is connects between the water supply outlet (35) for non-hygienic uses.
The water level controller (40) will turn off the main water supply when the water has reaches a predetermine level (51) in the main water tank (33) . A clean water overflow outlet (38) is position slightly higher than a clean water inlet (42) to discharge any excess water in the main water tank (33) .
When rainwater falls onto the roof (22), the rainwater will flow onto the gutter (21) , which will channel the rainwater to at least one downpipe (23) . By means of atmospheric pressure, the rainwater will flow down through the downpipe (23) to the dirt collection chamber (24) and up to the rainwater collection pipe (27) . When there is water inside a generally U shaped pipe, naturally when the water inside the downpipe (23) gets higher, this will consequently raise up the water filled in the rainwater collection pipe (27) at the same time, whereby the water level at each end is always level. The detachable filter (26) is positions between the dirt collection chamber (24) and the rainwater collection pipe
(27) , which connects to the rainwater storage means (28) . The detachable filter (26) will filter out any dirt bigger than a predetermined size. Those filtered dirt will settle down in the dirt collection chamber (24) . The detachable cover (25) is positions at the bottom open end of the dirt collection chamber (24) . To remove the filtered dirt, the detachable cover (25) is removed from the dirt collection chamber (24) . Water inside the downpipe (23) and the rainwater collection pipe (27) will flash out the dirt through the open end of the dirt collection chamber (24) . Since the rainwater inlet (29) of the rainwater storage means
(28) is not higher than the bottom of the gutter (21), the rainwater will flow into the rainwater storage means (28) . The rainwater overflow outlet (30) is level with the rainwater inlet (29) . When the rainwater level in the rainwater storage means (28) is higher than the rainwater inlet (29) , the rainwater will flow out of the rainwater storage means (28) through the overflow outlet (30) .
When the water in the rainwater storage means (28) used below the predetermine level (50) , automatically the water level controller will activated to enable the water from the main water tank (33) to supply to the rainwater storage means (28) and to maintain said water in the rainwater storage means (28) at the predetermine level (50) . During long drought, no additional water will be filled up when the rainwater level drops no lower than a predetermined level (50) in the rainwater storage means (28) . Once the rainwater level drops below the predetermined level (50) , only then, clean water from the main water tank (33) will fill up the rainwater storage means (28) to the predetermined level (50) in order to ensure a consistency supply of water for non-hygienic uses. The main water tank (33) is installed higher than the rainwater storage means (28) .
It is to be understood that the present invention may be embodied in other specific forms and is not limited to the sole embodiment described above. However modification and equivalents of the disclosed concepts such as those which readily occur to one skilled in the art are intended to be included within the scope of the claims which are appended thereto.

Claims

1. A rainwater collection, storage and supply system for rainwater falling onto the roof of a building comprising:,
a rainwater collection means that is mounted adjacent to the said roof;
a rainwater storage means for storing said rainwater collected from the said rainwater collection means, wherein the rainwater storage means has at least one inlet for receiving rainwater from the rainwater collection means;
a connection means for connecting the said collection and storage means;
characterized in that the rainwater collection means is positioned higher than the inlet of the rainwater storage means for the rainwater to flow from the collection means through the connection means towards the inlet of the rainwater storage means.
2. The rainwater collection, storage and supply system as claimed in claim 1 wherein the said rainwater collection means comprises a gutter that is positioned underneath the edge of the said roof.
3. The rainwater collection, storage and supply system as claimed in claim 1 or 2 wherein the said connection means comprises a dirt collection chamber positioned lower than the rainwater storage means; at least one downpipe connecting the said rainwater collection means to the dirt collection chamber and; at least one rainwater collection pipe connecting the said rainwater storage means and the rainwater storage means.
4. The rainwater collection, storage and supply system for rainwater falling onto the roof of a building as claimed in 3 wherein the connection means further comprises a detachable filter that is fitted between the said dirt collection chamber and the said collection pipe.
5. The rainwater collection, storage and supply system as claimed in claim 3 or 4 wherein the dirt collection chamber has an opening for the removal of dirt inside the chamber and the opening is fitted with a detachable cover.
6. The rainwater collection, storage and supply system as claimed in any of the claims 1 to 5 wherein the rainwater storage means consists of multiple tanks that are interconnected to each other with pipes.
7. The rainwater collection, storage and supply system as claimed in any of the claims 1 to 6 wherein the rainwater storage means has a supply outlet for discharging the water stored inside the storage means.
8. The rainwater collection, storage and supply system as claimed in any of the claims 1 to 7 wherein the rainwater storage means has at least one additional inlet for receiving clean water and at least one overflow outlet.
9. The rainwater collection, storage and supply system as claimed in claim 8 wherein the said inlet for receiving rainwater is positioned at the same level as the overflow outlet but lower than the inlet for receiving clean water.
10. The rainwater collection, storage and supply system as claimed in claim 8 or 9 wherein the overflow outlet is positioned at the same level as the bottom of the said gutter.
11. The rainwater collection, storage and supply system as claimed in any of the claims 8 to 10 wherein the inlet for receiving clean water of the said rainwater storage means is positioned higher than the said rainwater collection pipe.
12. The rainwater collection, storage and supply system as claimed in any of the claims 1 to 11 wherein the system further comprises a water back-up supply means during a long drought .
13. The rainwater collection, storage and supply system as claimed in claim 12 wherein the said water supply back-up means comprises a main water tank that is positioned higher than the said rainwater storage means, and clean water is transferred to the said rainwater storage means when water level in the rainwater storage means has dropped below a certain level.
14. The rainwater collection, storage supply system as claimed in claim 13 wherein the main water tank has at least one inlet for receiving clean water from a clean water supply line, a clean water overflow outlet and an outlet, which is connected to the rainwater storage means, for supplying clean water to the rainwater storage means.
15. The rainwater collection, storage and supply system as claimed in 14 wherein the rainwater storage means has an additional inlet for receiving clean water from the said main water tank, and a water controller is fixed to the said inlet which opens when water level in the storage system falls below certain level
PCT/SG2003/000198 2002-08-28 2003-08-28 Rainwater collection, storage and supply system Ceased WO2004020748A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003256239A AU2003256239A1 (en) 2002-08-28 2003-08-28 Rainwater collection, storage and supply system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI20023209 2002-08-28
MYPI20023209 2002-08-28

Publications (1)

Publication Number Publication Date
WO2004020748A1 true WO2004020748A1 (en) 2004-03-11

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PCT/SG2003/000198 Ceased WO2004020748A1 (en) 2002-08-28 2003-08-28 Rainwater collection, storage and supply system

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AU (1) AU2003256239A1 (en)
WO (1) WO2004020748A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436680A (en) * 2006-03-30 2007-10-03 Arctic Circle Ltd Building having a rainwater collecting and storage facility
GB2437625A (en) * 2006-04-24 2007-10-31 Ian Shephard Rainwater augmented domestic low-pressure water supply
FR2911617A1 (en) * 2007-01-24 2008-07-25 Alain Duchene Rain water collecting and distributing installation for dwelling, has reservoir with compartment connected to water distribution conduit, and cleaning unit i.e. rotor, mounted in compartment and connected on water distribution conduit
US8124357B2 (en) 2005-04-05 2012-02-28 Allergan, Inc. Lipophilic dye-based fret assays for clostridal toxin activity
CN102425208A (en) * 2011-10-01 2012-04-25 王德普 Tap water pipe and air cooler
CN104594444A (en) * 2014-12-05 2015-05-06 乐山市同源科技有限公司 High-rise building automatic water saving system without energy consumption
CN107035079A (en) * 2017-04-01 2017-08-11 西南交通大学 A kind of energy saving and environment friendly rainwater treatment device for building roof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112878419B (en) * 2020-07-01 2024-09-27 江苏省苏中建设集团股份有限公司 Rainwater collecting device and method for construction site

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402750B (en) * 1995-05-19 1997-08-25 Pichler Hubert Tank systems for collecting rainwater
DE29820835U1 (en) * 1998-11-21 1999-03-04 Luber, Norbert, 92237 Sulzbach-Rosenberg Rainwater collection and distribution system with hydrostatic pressure and slow forced emptying
GB2344132A (en) * 1998-11-25 2000-05-31 Brian Leslie Nicholas Rainwater collection and supply

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402750B (en) * 1995-05-19 1997-08-25 Pichler Hubert Tank systems for collecting rainwater
DE29820835U1 (en) * 1998-11-21 1999-03-04 Luber, Norbert, 92237 Sulzbach-Rosenberg Rainwater collection and distribution system with hydrostatic pressure and slow forced emptying
GB2344132A (en) * 1998-11-25 2000-05-31 Brian Leslie Nicholas Rainwater collection and supply

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8124357B2 (en) 2005-04-05 2012-02-28 Allergan, Inc. Lipophilic dye-based fret assays for clostridal toxin activity
GB2436680A (en) * 2006-03-30 2007-10-03 Arctic Circle Ltd Building having a rainwater collecting and storage facility
GB2436680B (en) * 2006-03-30 2011-09-14 Arctic Circle Ltd A Building Having A Rainwater Collecting And Storage Facility
GB2437625A (en) * 2006-04-24 2007-10-31 Ian Shephard Rainwater augmented domestic low-pressure water supply
GB2437625B (en) * 2006-04-24 2011-02-23 Ian Shephard Rainwater augumented domestic low-pressure water supply
FR2911617A1 (en) * 2007-01-24 2008-07-25 Alain Duchene Rain water collecting and distributing installation for dwelling, has reservoir with compartment connected to water distribution conduit, and cleaning unit i.e. rotor, mounted in compartment and connected on water distribution conduit
CN102425208A (en) * 2011-10-01 2012-04-25 王德普 Tap water pipe and air cooler
CN104594444A (en) * 2014-12-05 2015-05-06 乐山市同源科技有限公司 High-rise building automatic water saving system without energy consumption
CN107035079A (en) * 2017-04-01 2017-08-11 西南交通大学 A kind of energy saving and environment friendly rainwater treatment device for building roof

Also Published As

Publication number Publication date
AU2003256239A8 (en) 2004-03-19
AU2003256239A1 (en) 2004-03-19

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