WO2006066903A1 - Traitement de boues d'epuration - Google Patents
Traitement de boues d'epuration Download PDFInfo
- Publication number
- WO2006066903A1 WO2006066903A1 PCT/EP2005/013821 EP2005013821W WO2006066903A1 WO 2006066903 A1 WO2006066903 A1 WO 2006066903A1 EP 2005013821 W EP2005013821 W EP 2005013821W WO 2006066903 A1 WO2006066903 A1 WO 2006066903A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sludge
- phosphorus compound
- amount
- phosphonium
- added
- 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
Links
Classifications
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/542—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Definitions
- the invention relates to a method for treating sewage sludge and sludge treated by the aforesaid process.
- the treatment of raw sewage generally involves a filtration or settling step (in which large solids and gravel are removed) followed by a step in which the aqueous phase is aerobically removed to remove biodegradable substances.
- This last step involves "activated sludge" which is essentially a concentrated bacterial mass.
- Biodegradable substances must be removed before discharging the aqueous phase into rivers, for example rivers, otherwise the bacterial degradation of these substances in the river would consume dissolved oxygen, leading to the death of fish, to bad water. odors and the general degradation of the environment.
- growth and multiplication of bacteria occur, which results in the accumulation of bacterial sludge that must be removed.
- the excess sludge can be "digested” under anaerobic conditions where, essentially, the bacteria are rebalanced under the new conditions to produce methane and reduce the biomass but, in the end, there remains an irreducible mass of excess of sludge that must be removed.
- disposal methods such as controlled discharge and rejection at sea, none of which are favored for pollution reasons.
- excess sludge may be incinerated (expensive) or spread on farmland, and in the latter case sludge may be used as fertilizer / soil conditioner, which is a benefit.
- E. coli An indicator organism used to quantify pathogenic risk is E. coli.
- E. coli To meet the statutory requirements of the United Kingdom for conventional treated sludge, the level of E. coli in sludge must be reduced by 99% (ie a log reduction of 2) and the maximum acceptable level E. coli in the treated sewage sludge is 10 5 per gram of dry sludge (gbs).
- Salmonella For improved treated sludge in the United Kingdom, Salmonella should not be present and the level of E.
- E. coli should be reduced by at least 99.9999% (ie logarithmic drop of 6).
- the maximum acceptable level of E. coli in the improved treated sewage sludge is 10 3 per gram of dry sludge. It is expected that similar statutory requirements will be adopted in the future throughout Europe and the USA.
- the present invention provides a process for treating sewage sludge to reduce the pathogen content of said sludge, the process comprising the steps of:
- the phosphorus compound may be added to untreated (raw) sewage sludge.
- the phosphorus compound is preferably added in an amount sufficient to reduce the total amount of pathogens in the untreated sewage sludge by an amount equivalent to a log reduction of 2 or more.
- the phosphorus compound may be added to sewage sludge which have already been subjected to one or more treatments to reduce the total amount of pathogens present, these sludge are called in the following "pre-treated sludge".
- pre-treated sludge A preferred treatment used to generate pre-treated sludge is anaerobic digestion.
- the phosphorus compound is preferably added to the pretreated sludge in an amount effective to reduce the amount of pathogen present in the pretreated sludge so that the total decrease in pathogen content, after pretreatment and treatment with the phosphorus compound, compared to sludge. untreated, equivalent to a log reduction of 2 or more.
- the phosphorus compound is maintained in contact with the pretreated sludge for a time sufficient to cause a total decrease in pathogen content, relative to the untreated sludge, by an amount equivalent to a log reduction of 2 or more; and the total decrease in pathogen content achieved by adding the phosphorus compound is an amount equivalent to a log reduction of less than 2.
- untreated sewage sludge may have been subjected to an anaerobic digestion treatment prior to step (a).
- the anaerobic digestion step could, for example, cause a decrease in the pathogen content by an amount equivalent to a log reduction of 1.0 to 1.8, preferably 1.5.
- the untreated sludge after treatment with an anaerobic digestion step could be called pre-treated sludge.
- a phosphorus compound could then be added to the pretreated sludge to further lower the pathogen content.
- the phosphorus compound could cause a further decrease in pathogen content by an amount equivalent to a log reduction of 0.2 to 1.0 or more, preferably 0.5 or more, respectively, relative to the pathogen content.
- untreated sludge This process could lead to a decrease total pathogen content of sludge by an amount equivalent to a log reduction of 2 or more compared to the pathogen content of untreated sludge, to give finally treated sludge.
- the method according to the present invention provides a decrease in pathogen content by an amount equivalent to a log reduction of two to six of the pathogen content present in the finally treated sludge after a treatment with the process of the present invention. the present invention compared to the pathogen content of untreated sludge.
- the phosphorus compound is kept in contact with the sludge for a time sufficient to reduce the total amount of pathogens present in the sludge, compared to untreated raw sludge, by a log reduction of 3 or more and more preferably by 4. or more .
- the phosphorus compound is an organophosphorus compound.
- the phosphorus compound is a phosphonium compound, especially a tetrakis (hydroxy-organo) phosphonium salt or a compound of formula (I)
- R 'and R " which may be the same or different, are selected from an alkyl, hydroxyalkyl, alkenyl or aryl group, and X is an anion.
- R 'and R " are preferably from 1 to 20 carbon atoms in length.
- X is preferably selected from the group consisting of chloride, sulfate, phosphate, acetate, oxalate and bromide.
- the phosphonium compound is tetrakis (hydroxymethyl) phosphonium sulfate.
- the phosphonium compound may be, for example, tetrakis (hydroxymethyl) phosphonium chloride, tetrakis (hydroxymethyl) phosphonium bromide, tetrakis phosphate (hydroxyethyl) methyl) phosphonium, tetrakis (hydroxymethyl) phosphonium acetate or tetrakis (hydroxymethyl) phosphonium oxalate.
- the phosphorus compound may be a phosphine bearing an alkyl substituent, for example tris (hydroxymethyl) phosphine such as that represented by the formula (II):
- each of R which may be the same or different, is selected from alkyl, hydroxyalkyl, alkenyl or aryl.
- the amount of phosphorus compound to be added to the sludge in step (a) of the process of the present invention is preferably up to 10,000 mg / l, preferably from 100-2,500 mg / l, and more preferably from 200 to 200 mg / l. 1000 mg / 1.
- the amount of phosphorus compound to add to the sludge can be expressed in relation to the weight of the dry extract.
- the amount to be added can reach about 30% by weight of the dry extract.
- the amount of phosphorus compound to be added may be from 0.1 to 20%, for example from 0.1 to 10%, such as from 0.2 to 5% or from 0.4 to 2% by weight. of the dry extract.
- Step (b) of the process of the present invention can be carried out over a period of 1 second to 14 days. For example, 6 to 24 hours, 1 to 6 hours, 1 to 60 minutes, 1 to 60 seconds or 1 to 15 seconds.
- the log reduction of the total pathogen content can be measured on the basis of liquid sludge so that the finally treated sludge obtained after treatment by the process of the present invention shows a decrease in the total level of pathogens of a quantity. equivalent to a log reduction of 2 or more.
- the expression slurries is defined herein as containing a solids content of 1 to 4% by weight.
- the total decrease in pathogen content equivalent to a log reduction of 2 or more that is achieved by the method of the present invention is achieved in a period of time which is shorter than the amount of time it if no phosphorus compound is used.
- the total decrease in pathogen content equivalent to a log reduction of 2 or more that is achieved by the method of the present invention is preferably achieved within 20 to 30 hours, more preferably in the range of 20 to 30 hours. 24 hours space.
- the log reduction of the total pathogen content can be measured relative to the sludge cake so that the finally treated sludge obtained after the treatment by the method of the present invention shows a decrease in the total level of pathogens.
- a sludge cake is defined herein as containing a solids content of 20 to 30% by weight.
- the total decrease in pathogen content equivalent to a log reduction of 2 or more achieved by the method of the present invention is achieved in a period of time which is shorter than the amount of time required. if no phosphorus compound is used.
- the present process thus ensures that, regardless of whether the treated sludge is used in liquid or cake form, the necessary decrease in pathogen levels is achieved to allow the treated sludge to be employed as required.
- step (b) preferably lasts 6 to 24 hours.
- step (b) is preferably carried out in 15 seconds 24 hours .
- Dewatering additives such as polydiallyldimethylammonium chlorides, polyamines, cationized polyacrylamides and anionic polyacrylamides can be employed in the production of a sludge cake.
- bacteria including Escherichia coli, Salmonella, Shigella, Vibreo cholerae, Bacillus cereus, Listeria monocytogenes, Campylobacter and Yersinia pestis;
- viruses including rotaviruses, calciviruses, group F adenoviruses and astroviruses;
- helminths and their eggs including nematodes, eg Ascaris lumbricoides (roundworms), Trichuris trichiura (whipworm), Ancylostoma duodenale (hookworm), Strongyloides stercoralis (eelwort); trematodes, for example, Schistosoma species; and cestodes, for example Taenia sagina ta (beef tapeworm) and Taenia solum (pork tapeworm).
- nematodes eg Ascaris lumbricoides (roundworms), Trichuris trichiura (whipworm), Ancylostoma duodenale (hookworm), Strongyloides stercoralis (eelwort); trematodes, for example, Schistosoma species; and cestodes, for example Taenia sagina ta (beef tapeworm) and Taenia solum (pork tapeworm).
- the present invention further provides sewage sludge which has been treated according to the method described above.
- the sludge may be liquid sludge or may be a sludge cake.
- the present invention will be illustrated by means of the following examples.
- the phosphorus compound used to treat the sewage sludge was 75% by weight of tetrakis (hydroxymethyl) phosphonium sulfate, available from Rhodia Consumer Specialties Limited.
- the product will be referred to hereinafter as "phosphonium salt”.
- sewage sludge was treated with a conventional disinfectant compound, dibromonitrilopropionamide (DBNPA).
- DBNPA dibromonitrilopropionamide
- the methodology used to evaluate the biocidal performance was the quantitative suspension test (ESQ) using sterile anaerobic digester sludge as an ESQ medium, inoculated back with cultures of E. coli previously isolated from the sludge. In this way, a coherent chemical environment (sterile sludge) could be used in conjunction with a defined bacterial challenge. This makes it possible to obtain coherence between the tests.
- ESQ quantitative suspension test
- Sterile sludge was prepared from raw sludge samples by autoclaving at 121 ° C for 20 minutes.
- the E. coli strains used in the ESQ were isolated from raw sludge samples.
- the ESQ was conducted as follows:
- Fresh titrated solutions of the processed process chemicals were prepared in sterile phosphate buffer (0.2M at pH 7.2) at concentrations such that, by adding 0.5ml to the ESQ medium (final volume of 20%), ml), the desired final concentration of biocide is obtained.
- the ESQ medium was well mixed and kept at 22 ° C. for the duration of the test.
- MacConkey Broth was chosen because this medium contains the purple bromcresol pH indicator that turns purple to yellow as the medium becomes acidic. It is a useful indirect indicator of microbial growth (organic acid production) when it can not be evaluated by the appearance of a disorder in a clear environment at the origin. Since the sludge contains solids in suspension, the first 2 tubes of the dilutions series show an instantaneous cloudiness as soon as sludge is added. This makes it impossible to use a single disorder as an indicator of microbial growth.
- the biocides used in the evaluations are shown in the following table.
- the performance of the phosphonium salt was studied at an equal active substance concentration of 375 mg / l and 500 mg / l.
- a logarithmic reduction of 3 in the number of E. coli was obtained after just over 1 minute of contact between raw untreated sewage sludge and phosphonium salt at a concentration of 500 mg / l and only after less than two minutes of contact between raw untreated sewage sludge and phosphonium salt at a concentration of 375 mg / 1.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/793,303 US7740762B2 (en) | 2004-12-20 | 2005-12-16 | Treatment of sewage sludges |
| JP2007545981A JP4937926B2 (ja) | 2004-12-20 | 2005-12-16 | 下水汚泥の処理方法 |
| EP05843396A EP1828063A1 (fr) | 2004-12-20 | 2005-12-16 | Traitement de boues d'epuration |
| CA 2591290 CA2591290C (fr) | 2004-12-20 | 2005-12-16 | Traitement de boues d'epuration |
| AU2005318398A AU2005318398B2 (en) | 2004-12-20 | 2005-12-16 | Treatment of sewage sludges |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0427740.6 | 2004-12-20 | ||
| GB0427740A GB2421239B (en) | 2004-12-20 | 2004-12-20 | Treatment of sewage sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006066903A1 true WO2006066903A1 (fr) | 2006-06-29 |
Family
ID=34090279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/013821 Ceased WO2006066903A1 (fr) | 2004-12-20 | 2005-12-16 | Traitement de boues d'epuration |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7740762B2 (fr) |
| EP (1) | EP1828063A1 (fr) |
| JP (1) | JP4937926B2 (fr) |
| CN (2) | CN101084164A (fr) |
| AU (1) | AU2005318398B2 (fr) |
| CA (1) | CA2591290C (fr) |
| GB (1) | GB2421239B (fr) |
| RU (1) | RU2397150C2 (fr) |
| WO (1) | WO2006066903A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251880A (zh) * | 2018-11-26 | 2019-01-22 | 广东中绿园林集团有限公司 | 一种蜡样芽胞杆菌及其在改善水体磷污染中的应用 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2647852A1 (fr) | 1989-06-01 | 1990-12-07 | Michelin & Cie | Pompe volumetrique pour matiere pateuse |
| CN103648988B (zh) * | 2011-03-16 | 2016-01-20 | 索尔维投资有限公司 | 用于污水生物处理的方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673509A (en) * | 1983-08-26 | 1987-06-16 | Albright & Wilson Limited | Biocidal water treatment |
| US5741757A (en) * | 1985-08-06 | 1998-04-21 | Albright & Wilson Limited | Biocidal mixture of tetrakis (hydroxymethyl) phosphonium salt and a surfactant |
| WO2003021031A1 (fr) * | 2001-09-01 | 2003-03-13 | Rhodia Consumer Specialties Limited | Composes phosphores |
| WO2004113237A1 (fr) * | 2003-06-20 | 2004-12-29 | Rhodia Uk Ltd | Traitement des boues d'epuration |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US673509A (en) * | 1900-12-26 | 1901-05-07 | John A Staples | Spring-edge seat. |
| DE1280764B (de) * | 1967-07-21 | 1968-10-17 | Hoechst Ag | Verfahren zum Vermindern der UEberschussschlammproduktion in Belebtschlammanlagen fuer Abwasserreinigung |
| US4509696A (en) | 1982-08-30 | 1985-04-09 | Chemfix Technologies, Inc. | Method for treating liquid and semi-solid organic waste materials |
| JPS62168599A (ja) * | 1986-01-20 | 1987-07-24 | Kurita Water Ind Ltd | 有機性汚泥の濃縮方法 |
| JPS62216700A (ja) * | 1986-03-18 | 1987-09-24 | Kurita Water Ind Ltd | 有機性汚泥の濃縮方法 |
| JPS6397299A (ja) * | 1986-10-13 | 1988-04-27 | Ebara Infilco Co Ltd | 有機性汚泥の嫌気性消化方法 |
| GB8712372D0 (en) * | 1987-05-26 | 1987-07-01 | Albright & Wilson | Treating ponds aquaria & watercourses |
| DE3816989A1 (de) * | 1987-08-05 | 1989-02-16 | Peroxid Chemie Gmbh | Entseuchung von klaerschlamm |
| US4966716A (en) * | 1988-06-24 | 1990-10-30 | Great Lakes Chemical Corporation | Method for the control of biofouling in recirculating water systems |
| GB8901881D0 (en) * | 1989-01-27 | 1989-03-15 | Albright & Wilson | Biocidal compositions and treatments |
| GB8904844D0 (en) * | 1989-03-03 | 1989-04-12 | Albright & Wilson | Biocidal compositions and treatments |
| US5188741A (en) * | 1992-04-01 | 1993-02-23 | Texaco Inc. | Treatment of sewage sludge |
| US5422015A (en) * | 1992-07-30 | 1995-06-06 | Hondo Chemical, Inc. | Pathogenic waste treatment |
| EP0650931B1 (fr) * | 1993-10-22 | 2003-07-02 | Kurita Water Industries Ltd. | Méthode pour éviter à une boue activée de pendre sa capacité de sedimentation |
| US5599461A (en) * | 1994-11-18 | 1997-02-04 | Peltier, Jr.; Morris | Process and product produced thereby for disinfection and agricultural reuse of organic sludges |
| FI961247A0 (fi) * | 1996-03-18 | 1996-03-18 | Finnish Peroxides Ab Oy | Foerfarande foer loesning av uppsvaellningsproblem i en avfalls vattenreningsanordning foer kontroll av traodartiga bakterier |
| US5670055A (en) * | 1996-08-08 | 1997-09-23 | Nalco Chemical Company | Use of the linear alkylbenzene sulfonate as a biofouling control agent |
| JP4250676B2 (ja) * | 1998-02-04 | 2009-04-08 | 株式会社片山化学工業研究所 | 工業用殺菌剤および工業的殺菌方法 |
| JP2000026180A (ja) * | 1998-07-07 | 2000-01-25 | Asano Koji Kk | 有機性汚泥の堆肥化方法 |
| US6001158A (en) * | 1999-02-18 | 1999-12-14 | Baker Hughes Incorporated | Dry biocide |
| GB0001417D0 (en) * | 2000-01-22 | 2000-03-08 | Albright & Wilson Uk Ltd | Bleaching pulp |
| JP2002102891A (ja) * | 2000-10-02 | 2002-04-09 | Nippon Chem Ind Co Ltd | 汚泥および脱水ケーキの悪臭防止方法 |
| JP3736344B2 (ja) * | 2000-12-22 | 2006-01-18 | 栗田工業株式会社 | 汚泥脱水ケーキの臭気発生防止方法 |
| JP2002219494A (ja) * | 2001-01-23 | 2002-08-06 | Mitsubishi Gas Chem Co Inc | 消臭剤及び消臭方法 |
| JP4733851B2 (ja) * | 2001-04-11 | 2011-07-27 | アクアス株式会社 | アメーバ殺滅剤、アメーバの抑制方法及びレジオネラ属菌の除菌方法 |
| JP4193106B2 (ja) * | 2002-05-02 | 2008-12-10 | 栗田工業株式会社 | 汚泥脱水ケーキの臭気抑制方法及び臭気抑制剤 |
| NZ540823A (en) * | 2002-12-20 | 2008-03-28 | Lonza Ag | Method for removal of biofilm |
| JP5280602B2 (ja) * | 2003-01-30 | 2013-09-04 | 水ing株式会社 | 臭気発生防止方法 |
| SE525083C2 (sv) * | 2003-04-23 | 2004-11-23 | Kemira Kemi Ab | Sätt att behandla rötslam |
-
2004
- 2004-12-20 GB GB0427740A patent/GB2421239B/en not_active Expired - Fee Related
-
2005
- 2005-12-16 EP EP05843396A patent/EP1828063A1/fr not_active Withdrawn
- 2005-12-16 CN CNA2005800437489A patent/CN101084164A/zh active Pending
- 2005-12-16 CN CN201410305515.2A patent/CN104086061A/zh active Pending
- 2005-12-16 CA CA 2591290 patent/CA2591290C/fr not_active Expired - Fee Related
- 2005-12-16 US US11/793,303 patent/US7740762B2/en not_active Expired - Fee Related
- 2005-12-16 WO PCT/EP2005/013821 patent/WO2006066903A1/fr not_active Ceased
- 2005-12-16 JP JP2007545981A patent/JP4937926B2/ja not_active Expired - Fee Related
- 2005-12-16 AU AU2005318398A patent/AU2005318398B2/en not_active Ceased
- 2005-12-16 RU RU2007127726A patent/RU2397150C2/ru not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673509A (en) * | 1983-08-26 | 1987-06-16 | Albright & Wilson Limited | Biocidal water treatment |
| US5741757A (en) * | 1985-08-06 | 1998-04-21 | Albright & Wilson Limited | Biocidal mixture of tetrakis (hydroxymethyl) phosphonium salt and a surfactant |
| WO2003021031A1 (fr) * | 2001-09-01 | 2003-03-13 | Rhodia Consumer Specialties Limited | Composes phosphores |
| WO2004113237A1 (fr) * | 2003-06-20 | 2004-12-29 | Rhodia Uk Ltd | Traitement des boues d'epuration |
Non-Patent Citations (1)
| Title |
|---|
| RUTISHAUSER BARBARA V ET AL: "Phosphine formation from sewage sludge cultures", ANAEROBE, vol. 5, no. 5, October 1999 (1999-10-01), pages 525 - 531, XP002369039, ISSN: 1075-9964 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251880A (zh) * | 2018-11-26 | 2019-01-22 | 广东中绿园林集团有限公司 | 一种蜡样芽胞杆菌及其在改善水体磷污染中的应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101084164A (zh) | 2007-12-05 |
| AU2005318398A1 (en) | 2006-06-29 |
| US20080257001A1 (en) | 2008-10-23 |
| AU2005318398B2 (en) | 2009-11-19 |
| RU2007127726A (ru) | 2009-01-27 |
| CA2591290A1 (fr) | 2006-06-29 |
| JP2008523970A (ja) | 2008-07-10 |
| CA2591290C (fr) | 2012-03-13 |
| GB0427740D0 (en) | 2005-01-19 |
| GB2421239A (en) | 2006-06-21 |
| CN104086061A (zh) | 2014-10-08 |
| RU2397150C2 (ru) | 2010-08-20 |
| GB2421239B (en) | 2010-06-23 |
| EP1828063A1 (fr) | 2007-09-05 |
| JP4937926B2 (ja) | 2012-05-23 |
| US7740762B2 (en) | 2010-06-22 |
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