WO1992004284A1 - Method for purification of wastewater - Google Patents
Method for purification of wastewater Download PDFInfo
- Publication number
- WO1992004284A1 WO1992004284A1 PCT/SE1991/000582 SE9100582W WO9204284A1 WO 1992004284 A1 WO1992004284 A1 WO 1992004284A1 SE 9100582 W SE9100582 W SE 9100582W WO 9204284 A1 WO9204284 A1 WO 9204284A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wastewater
- phosphor
- preceeding
- added
- filter bed
- Prior art date
Links
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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
-
- 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
- C02F3/006—Regulation methods for biological treatment
-
- 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
- C02F3/04—Aerobic processes using trickle filters
-
- 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
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- C02F2209/16—Total nitrogen (tkN-N)
-
- 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
- C02F2209/18—PO4-P
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/903—Nitrogenous
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/906—Phosphorus containing
Definitions
- the water has been first subjected to nitrifi ⁇ cation according to the known art, such that the nitrogen compounds in the wastewater have been converted to nitrates or to nitrites.
- the BOD reduction takes place with the addition of oxygen, and, espe- cially, in a simple and advantageous method, by blowing an oxygen-containing gas, preferably air.
- SUBSTITUTESHEET A precipitation/flocking agent for precipitating phosphor is added to the wastewater immediately before the latter enters the filter bed.
- Iron chloride is a suitable precipitation agent for phosphor.
- Other suitable precipitation/flocculation agents in use e.g.
- a factor supposed to affect denitrification is washing the filter bed. Practically, it is quite possible to wash the bed so thoroughly that the bacterium strain is unfavorably reduced. Heavy counter-flushing of a stationary filter appear to be particularly injurious. However, it has been found that the washing sufficient for removing sludge and contaminants from the sand does not notably impoverish the bacterium strain. All the nitrogen gas that may be entrained in the san and sludge is also removed in such washing.
- the so-called con tinous sand filters are particularly favorable for use in a method according to the present invention, only a small por ⁇ tion of the filter bed at a time being subjected to such washing.
- Denitrification is directly proportional to the total surface of the sand grains in the filter bed. Its capacity may be improved by reducing the size of the grains and/or by increa ⁇ sing its height. At the same time, the period of active resi ⁇ dence between washings of each grain in the bed can thus be extended also.
- the result obtained i.e. nitrogen and phosphor reductions, is mainly controlled by the added quantities of carbon source and phosphor precipitation agents.
- a simultaneous nitrogen and phosphor reduction of over 90% may be obtained for a surface load on the filter bed of 15 m/h.
- the amount of sludge as well as the nitrogen and phosphor contents may vary heavily within relatively short preiods of time.
- the addition of carbon source should not be of the order of magnitude enabling an unnecessarily large BOD load to be achieved in the departing water, neither should it be too low for achieving an optimum result.
- Continuous monotoring of the incoming and/or outgoing water with respect to the content of nitrogen, phosphor and its BOD/COD biological/chemical oxygen demand
- BOD/COD biological/chemical oxygen demand
- the invention thus gives directions, not only with respect to the simultaneous phosphor precipitation and deni ⁇ trification, but also how to reduce the invention, the reduc- tion of BOD excess is accomplished by blowing an oxygen-con ⁇ taining gas, usually air, into the upper part of a filter bed. This may be performed by blowing the gas through a row of nozzles or jets, for example.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
- Physical Water Treatments (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91916481A EP0594623A1 (en) | 1990-09-07 | 1991-09-04 | Method for purification of wastewater |
AU85065/91A AU651379B2 (en) | 1990-09-07 | 1991-09-04 | Method for purification of wastewater |
KR1019930700659A KR960004304B1 (en) | 1990-09-07 | 1991-09-04 | Method for purification of waste water |
US07/984,568 US5372720A (en) | 1990-09-07 | 1991-09-04 | Method for purification of wastewater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9002864-8 | 1990-09-07 | ||
SE9002864A SE468985B (en) | 1990-09-07 | 1990-09-07 | PROCEDURE FOR WASTE WASTE CLEANING |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992004284A1 true WO1992004284A1 (en) | 1992-03-19 |
Family
ID=20380308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1991/000582 WO1992004284A1 (en) | 1990-09-07 | 1991-09-04 | Method for purification of wastewater |
Country Status (8)
Country | Link |
---|---|
US (1) | US5372720A (en) |
EP (1) | EP0594623A1 (en) |
JP (1) | JPH06500729A (en) |
KR (1) | KR960004304B1 (en) |
AU (1) | AU651379B2 (en) |
CA (1) | CA2090604C (en) |
SE (1) | SE468985B (en) |
WO (1) | WO1992004284A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0593834A1 (en) * | 1992-10-06 | 1994-04-27 | Sulzer Chemtech AG | Process and installation for the biological purification of water |
WO1994021568A1 (en) * | 1993-03-15 | 1994-09-29 | Philipp Müller Gmbh | Sewage treatment plant |
EP1013613A1 (en) * | 1998-12-07 | 2000-06-28 | VTA Engineering und Umwelttechnik GmbH | Process for the biological purification of waste waters containing phosphorus |
WO2010063103A1 (en) * | 2008-12-01 | 2010-06-10 | Rowanwood Ip Inc. | Sewage nitrate removal by free-draining asphyxiant filtration and carbon addition |
WO2016051328A1 (en) * | 2014-10-02 | 2016-04-07 | Xylem Ip Management S.À R.L. | Method for managing a wastewater treatment process |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69204233T2 (en) * | 1991-07-12 | 1996-01-25 | Norihito Tambo | Process and plant for wastewater treatment by dephosphorization and anaerobic or aerobic treatment. |
US5462666A (en) * | 1994-09-28 | 1995-10-31 | Rjjb & G, Inc. | Treatment of nutrient-rich water |
GB9425110D0 (en) * | 1994-12-13 | 1995-02-08 | Boc Group Plc | Sewage respiration inhibition |
FR2738234B1 (en) * | 1995-08-29 | 1998-10-30 | Degremont | PROCESS FOR REMOVAL OF NITROGEN COMPOUNDS AND REMINERALIZATION OF LOWLY MINERALIZED WATER |
US8071055B2 (en) | 2002-12-04 | 2011-12-06 | Blue Water Technologies, Inc. | Water treatment techniques |
EP1567453A1 (en) | 2002-12-04 | 2005-08-31 | Idaho Research Foundation, Inc. | Reactive filtration |
US7445721B2 (en) * | 2003-12-03 | 2008-11-04 | Idaho Research Foundation, Inc. | Reactive filtration |
US8080163B2 (en) * | 2002-12-04 | 2011-12-20 | Blue Water Technologies, Inc. | Water treatment method |
US7713426B2 (en) * | 2008-01-11 | 2010-05-11 | Blue Water Technologies, Inc. | Water treatment |
US9580341B1 (en) | 2012-09-22 | 2017-02-28 | Biotta LLC | Biological two-stage contaminated water treatment system and process |
US9856160B2 (en) * | 2012-09-22 | 2018-01-02 | Biottta Llc | Biological two-stage contaminated water treatment system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4167479A (en) * | 1976-10-08 | 1979-09-11 | Ferdinand Besik | Process for purifying waste waters |
US4353800A (en) * | 1980-08-25 | 1982-10-12 | Ferdinand Besik | Method and an apparatus for biological treatment of waste waters |
WO1986003734A1 (en) * | 1984-12-21 | 1986-07-03 | Commonwealth Scientific And Industrial Research Or | Nitrification/denitrification of waste material |
EP0293521A2 (en) * | 1987-06-04 | 1988-12-07 | GebràDer Sulzer Aktiengesellschaft | Process for the biological purification of water or waste water from organic nitrogenous pollutants |
EP0378521A1 (en) * | 1989-01-11 | 1990-07-18 | Kemira Kemi Aktiebolag | Water purification process |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4279753A (en) * | 1979-03-19 | 1981-07-21 | Arco Environmental Company | Wastewater treatment system including multiple stages of alternate aerobic-anerobic bioreactors in series |
NL8720037A (en) * | 1986-02-10 | 1988-01-04 | Onoda Alc Kk | METHOD FOR TREATING WASTE WATER. |
-
1990
- 1990-09-07 SE SE9002864A patent/SE468985B/en not_active IP Right Cessation
-
1991
- 1991-09-04 JP JP3515034A patent/JPH06500729A/en active Pending
- 1991-09-04 EP EP91916481A patent/EP0594623A1/en not_active Withdrawn
- 1991-09-04 CA CA 2090604 patent/CA2090604C/en not_active Expired - Lifetime
- 1991-09-04 KR KR1019930700659A patent/KR960004304B1/en not_active IP Right Cessation
- 1991-09-04 AU AU85065/91A patent/AU651379B2/en not_active Expired
- 1991-09-04 WO PCT/SE1991/000582 patent/WO1992004284A1/en not_active Application Discontinuation
- 1991-09-04 US US07/984,568 patent/US5372720A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4167479A (en) * | 1976-10-08 | 1979-09-11 | Ferdinand Besik | Process for purifying waste waters |
US4353800A (en) * | 1980-08-25 | 1982-10-12 | Ferdinand Besik | Method and an apparatus for biological treatment of waste waters |
WO1986003734A1 (en) * | 1984-12-21 | 1986-07-03 | Commonwealth Scientific And Industrial Research Or | Nitrification/denitrification of waste material |
EP0293521A2 (en) * | 1987-06-04 | 1988-12-07 | GebràDer Sulzer Aktiengesellschaft | Process for the biological purification of water or waste water from organic nitrogenous pollutants |
EP0378521A1 (en) * | 1989-01-11 | 1990-07-18 | Kemira Kemi Aktiebolag | Water purification process |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN, Vol. 7, No. 100, C-164; & JP,A,58 027 696, Publ. 18-02-1983, (EBARA INFILCO K.K.). * |
RESEARCH JOURNAL WPCF, Vol. 62, No. 3, 1990, BEN KOOPMAN et al., "Denitrification in a Moving Bed Upflow Sand Filter", pages 239-245. * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0593834A1 (en) * | 1992-10-06 | 1994-04-27 | Sulzer Chemtech AG | Process and installation for the biological purification of water |
US5520812A (en) * | 1992-10-06 | 1996-05-28 | Sulzer Chemtech Ag | Process for the biological purification of water |
WO1994021568A1 (en) * | 1993-03-15 | 1994-09-29 | Philipp Müller Gmbh | Sewage treatment plant |
US5798044A (en) * | 1993-03-15 | 1998-08-25 | Philipp Muller Gmbh | Method for sewage treatment |
EP1013613A1 (en) * | 1998-12-07 | 2000-06-28 | VTA Engineering und Umwelttechnik GmbH | Process for the biological purification of waste waters containing phosphorus |
WO2010063103A1 (en) * | 2008-12-01 | 2010-06-10 | Rowanwood Ip Inc. | Sewage nitrate removal by free-draining asphyxiant filtration and carbon addition |
WO2016051328A1 (en) * | 2014-10-02 | 2016-04-07 | Xylem Ip Management S.À R.L. | Method for managing a wastewater treatment process |
CN106795017A (en) * | 2014-10-02 | 2017-05-31 | 赛莱默知识产权管理有限公司 | Method for managing waste water treatment process |
Also Published As
Publication number | Publication date |
---|---|
SE468985B (en) | 1993-04-26 |
SE9002864L (en) | 1992-03-08 |
US5372720A (en) | 1994-12-13 |
KR960004304B1 (en) | 1996-03-30 |
CA2090604A1 (en) | 1992-03-08 |
CA2090604C (en) | 1997-12-23 |
EP0594623A1 (en) | 1994-05-04 |
JPH06500729A (en) | 1994-01-27 |
AU651379B2 (en) | 1994-07-21 |
SE9002864D0 (en) | 1990-09-07 |
AU8506591A (en) | 1992-03-30 |
KR930702233A (en) | 1993-09-08 |
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