WO1999067173A2 - Filtering plant for waste water - Google Patents
Filtering plant for waste water Download PDFInfo
- Publication number
- WO1999067173A2 WO1999067173A2 PCT/NO1999/000191 NO9900191W WO9967173A2 WO 1999067173 A2 WO1999067173 A2 WO 1999067173A2 NO 9900191 W NO9900191 W NO 9900191W WO 9967173 A2 WO9967173 A2 WO 9967173A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- plant
- filter
- purification
- chamber
- Prior art date
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 23
- 238000001914 filtration Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 120
- 238000000746 purification Methods 0.000 claims abstract description 51
- 239000010802 sludge Substances 0.000 claims abstract description 23
- 239000000872 buffer Substances 0.000 claims abstract description 19
- 241000894006 Bacteria Species 0.000 claims abstract description 16
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 15
- 239000010797 grey water Substances 0.000 claims abstract description 6
- 239000010866 blackwater Substances 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 31
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052698 phosphorus Inorganic materials 0.000 claims description 15
- 239000011574 phosphorus Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000011368 organic material Substances 0.000 claims description 14
- 238000011045 prefiltration Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000006396 nitration reaction Methods 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000002203 pretreatment Methods 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 53
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 244000261422 Lysimachia clethroides Species 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012464 large buffer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Definitions
- This invention relates to a purification plant for purification of waste water and recycling water from a small group of households, agricultural units, cabins and the like. If the plant receives only grey water, the plant should purify it to such an extent that the water can be re-used for watering, washing, flushing of toilets, etc. If the plant receives black water, the plant should purify the water so that it can safely be discharged into the environment.
- the plant is divided into three main parts; a sludge interceptor, a main filter with vertical unsaturated aerobic flow at the top and saturated anaerobic flow at the bottom of the filter, and a final filter with horizontal saturated anaerobic flow. As a final treatment the water is disinfected in order to remove bacteria.
- An object of the present invention is to provide a compact purification plant which can purify grey water chemically, mechanically and biologically under both aerobic and anaerobic conditions, from a small group of households, agricultural units, cabins and the like to such an extent that the water can be re-used for watering purposes, as washing water, for flushing of toilet bowls. etc. If the waste water also contains water from the toilet, so-called black water, the plant should purify the water to such an extent that it can safely be discharged into local earth masses or another recipient without the risk of local pollution.
- Another object of the invention is to provide a purification plant which can easily regulate the recirculation of the water between the different purification zones, the water's residence time and where it is easy to replace filter media, thus providing the plant with a very high total purification effect which satisfies present day requirements for purification of phosphorus, organic materials, nitrogen and bacteria by a wide margin.
- a further object of the present invention is to provide a purification plant which is optimised with regard to nitrogen removal, and which can rapidly be adjusted/modified in order to maintain optimal nitrogen removal without conversion or alterations to the filter medium according to any changes in the operating conditions.
- the water After the water has passed through the final filter it is passed through a disinfection unit for further removal of bacteria. The water is then discharged into local earth masses or another water recipient, or collected in tanks for reuse.
- Figure 1 is a plan view seen from above of a first preferred embodiment of the purification plant according to the invention.
- the arrows indicate the direction of flow of the water.
- Figure 2 is a side view of the first preferred embodiment illustrating the second sedimentation chamber and the prefilter chamber.
- Figure 3 is a new side view of the first preferred embodiment illustrating the prefilter chamber and first pump chamber. This view is perpendicular to the view presented in figure 2.
- Figure 4 is an interrupted side view of the main filter, second pump chamber and first sedimentation chamber in the first preferred embodiment.
- Figure 5 is a side view of the final filter and the UV unit in the first preferred embodiment.
- Figure 6 is a plan view seen from above of a second preferred embodiment of the plant according to the invention.
- Example 1 First preferred embodiment
- the first preferred purification plant is rectangular and composed of 7 chambers.
- the first sedimentation chamber is indicated by reference numeral 1 , the second sedimentation chamber by 2, the prefilter chamber by 3, the first pump chamber by 4, the main filter chamber by 5, the second pump chamber by 6, the final filter chamber by 7 and the UV chamber with outlet by reference numeral 8.
- Main filter > 5 kg/m 3 > 100 m/day 0.25 - 7 mm
- the prefilter chamber 3 has a wet volume of 0.8 m , and is filled with a filter medium consisting of Leca Lettklinker (light clinker) or a similar material with a diameter of 4-20 mm.
- the water will flow horizontally through the filter medium under anaerobic saturated conditions. After the water has passed through the filter it will be collected in a 75 mm perforated collecting pipe 34 which flows into the first pump chamber 4 (see figure 4).
- the end of the collecting pipe 34 may be equipped with transitional end pieces 35 in order to regulate the water through-flow. This offers the possibility of increasing the water's residence time in the sludge interceptor and thereby increasing the sedimentation and denitrification. In periods of extraordinary loading the water level in the sludge interceptor will rise.
- the partition between the prefilter chamber and the first pump chamber is equipped with a 1 10 mm overflow 36 immediately above the water level which corresponds to the maximum utilisation of the buffer volume.
- the water After the water has passed through the filter medium, it will be collected in a 32 mm perforated collecting pipe 52 which is located diagonally along the bottom of the main filter and will flow into the second pump chamber 6.
- the end of the collecting pipe 52 is in the form of a gooseneck 53 (see figure 4).
- the gooseneck can be rotated about the attachment point of the collecting pipe, thus enabling the height of the discharge point on the gooseneck to be raised and lowered in order to alter the height of the water surface, thus permitting the ratio between the aerobic and anaerobic zones in the main filter to be adjusted according to requirements.
- the volume of water which is recirculated to the first sedimentation chamber can be easily regulated by means of valve 65. In order to achieve the best possible purification effect, as much water as possible should be recirculated to the first sedimentation chamber, but of course there must be a balance between ingoing and outgoing water in the plant.
- the remainder of the water entering the second pump chamber 6 is passed to a final filter 7 for post-purification via the second branch of pipe 63 which is connected to a 75 mm perforated distribution pipe 71 which is located vertically in the final filter's filter medium 72 in a corner of the final filter chamber 7 (see figure 1).
- the final filter employs the same filter material as the main filter.
- the volume of water passed to the final filter can be easily regulated by means of a valve 64. The water will flow horizontally through the final filter's filter medium 72 to a 75 mm perforated collecting pipe 73 which is located in the opposite corner to the distribution pipe 71.
- the pumps in the first and second pump chambers should be equipped with an alarm in case of pump failure, and a spare pump should be available.
- the sedimentation chambers should be emptied of sludge once a year.
- the filter medium for the prefilter The filter medium for the main and final filters is expected to last for 5 years before having to be replaced. All materials which are watertight in the long-term and have sufficient load- carrying capacity to resist the water pressure can be employed for the plant's walls and bottom (concrete, fibre glass-reinforced polyester, etc.).
- the plant is composed of a circular main filter chamber 5 with the other chambers extending successively along the main filter chamber's outer wall (see figure 6).
- the total diameter of the plant is 4 m.
- BOF 7 is the amount of organic material measured for biological oxygen consumption and TKB is thermostable koliform bacteria.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU56572/99A AU5657299A (en) | 1998-06-12 | 1999-06-10 | Filtering plant for waste water |
CA 2334829 CA2334829A1 (en) | 1998-06-12 | 1999-06-10 | Filtering plant for waste water |
EP19990943497 EP1084083A2 (en) | 1998-06-12 | 1999-06-10 | Filtering plant for waste water |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO982737A NO307653B1 (en) | 1998-06-12 | 1998-06-12 | Wastewater filtration plant |
NO19982737 | 1998-06-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999067173A2 true WO1999067173A2 (en) | 1999-12-29 |
WO1999067173A3 WO1999067173A3 (en) | 2000-03-02 |
Family
ID=19902147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1999/000191 WO1999067173A2 (en) | 1998-06-12 | 1999-06-10 | Filtering plant for waste water |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1084083A2 (en) |
AU (1) | AU5657299A (en) |
CA (1) | CA2334829A1 (en) |
NO (1) | NO307653B1 (en) |
WO (1) | WO1999067173A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1808416A1 (en) * | 2006-01-11 | 2007-07-18 | ATB Umwelttechnologien GmbH | Device for the treatment of wastewater in a small sewage treatment plant |
EP2664584A1 (en) * | 2012-05-16 | 2013-11-20 | Mgm (Sarl) | Device for filtering grey water from households |
CN110066086A (en) * | 2019-03-13 | 2019-07-30 | 杭州电子科技大学 | The processing method of leachate in garbage transfer station |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112125419B (en) * | 2020-09-18 | 2022-07-15 | 中国科学院城市环境研究所 | Distributed domestic sewage source separation and collection method for resource local preferential reuse and pollution load reduction |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0396142A1 (en) * | 1989-05-03 | 1990-11-07 | Mitteldeutsche Wasser- und Umwelttechnik AG Halle | Process and apparatus for controlling biological processes for phosphor and nitrogen removal in activated sludge plants |
AU2082392A (en) * | 1991-08-16 | 1993-04-22 | Louis Adolf Danau | Domestic waste water treatment and apparatus therefor |
WO1993017974A1 (en) * | 1992-03-11 | 1993-09-16 | Biocycle Limited | Effluent treatment systems |
US5352357A (en) * | 1993-02-18 | 1994-10-04 | Perry Cliff R | Waste water treatment system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4236791C1 (en) * | 1992-10-30 | 1994-04-07 | Nordenskjoeld Reinhart Von | Waste water treatment process and apparatus |
-
1998
- 1998-06-12 NO NO982737A patent/NO307653B1/en not_active IP Right Cessation
-
1999
- 1999-06-10 AU AU56572/99A patent/AU5657299A/en not_active Abandoned
- 1999-06-10 WO PCT/NO1999/000191 patent/WO1999067173A2/en not_active Application Discontinuation
- 1999-06-10 EP EP19990943497 patent/EP1084083A2/en not_active Withdrawn
- 1999-06-10 CA CA 2334829 patent/CA2334829A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0396142A1 (en) * | 1989-05-03 | 1990-11-07 | Mitteldeutsche Wasser- und Umwelttechnik AG Halle | Process and apparatus for controlling biological processes for phosphor and nitrogen removal in activated sludge plants |
AU2082392A (en) * | 1991-08-16 | 1993-04-22 | Louis Adolf Danau | Domestic waste water treatment and apparatus therefor |
WO1993017974A1 (en) * | 1992-03-11 | 1993-09-16 | Biocycle Limited | Effluent treatment systems |
US5352357A (en) * | 1993-02-18 | 1994-10-04 | Perry Cliff R | Waste water treatment system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1808416A1 (en) * | 2006-01-11 | 2007-07-18 | ATB Umwelttechnologien GmbH | Device for the treatment of wastewater in a small sewage treatment plant |
EP2664584A1 (en) * | 2012-05-16 | 2013-11-20 | Mgm (Sarl) | Device for filtering grey water from households |
FR2990628A1 (en) * | 2012-05-16 | 2013-11-22 | Mgm | DEVICE FOR FILTRATION OF DOMESTIC GRAY WATER. |
CN110066086A (en) * | 2019-03-13 | 2019-07-30 | 杭州电子科技大学 | The processing method of leachate in garbage transfer station |
Also Published As
Publication number | Publication date |
---|---|
NO982737D0 (en) | 1998-06-12 |
NO982737L (en) | 1999-12-13 |
WO1999067173A3 (en) | 2000-03-02 |
EP1084083A2 (en) | 2001-03-21 |
AU5657299A (en) | 2000-01-10 |
CA2334829A1 (en) | 1999-12-29 |
NO307653B1 (en) | 2000-05-08 |
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