DE3436307C2 - Verfahren zur Verbesserung des Schlammvolumenindex von Mischwasser in einem Belüftungsbecken - Google Patents
Verfahren zur Verbesserung des Schlammvolumenindex von Mischwasser in einem BelüftungsbeckenInfo
- Publication number
- DE3436307C2 DE3436307C2 DE19843436307 DE3436307A DE3436307C2 DE 3436307 C2 DE3436307 C2 DE 3436307C2 DE 19843436307 DE19843436307 DE 19843436307 DE 3436307 A DE3436307 A DE 3436307A DE 3436307 C2 DE3436307 C2 DE 3436307C2
- Authority
- DE
- Germany
- Prior art keywords
- sludge
- basin
- concentrated
- mixed water
- water
- 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.)
- Expired - Lifetime
Links
- 239000010802 sludge Substances 0.000 title claims description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 41
- 238000005273 aeration Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 title claims description 19
- 239000011347 resin Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 229920002125 Sokalan® Polymers 0.000 claims description 11
- 238000005188 flotation Methods 0.000 claims description 10
- 239000004584 polyacrylic acid Substances 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 2
- 206010000060 Abdominal distension Diseases 0.000 description 5
- 208000024330 bloating Diseases 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 206010016766 flatulence Diseases 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- -1 Sodium or potassium Chemical class 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000003206 sterilizing agent Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- VMEZXMFPKOMWHR-UHFFFAOYSA-N (dimethylamino)methyl prop-2-enoate Chemical compound CN(C)COC(=O)C=C VMEZXMFPKOMWHR-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241000269851 Sarda sarda Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 201000009482 yaws Diseases 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
- C02F3/1205—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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- 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
- C02F3/1226—Particular type of activated sludge processes comprising an absorbent material suspended in the mixed liquor
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58185488A JPS6078696A (ja) | 1983-10-04 | 1983-10-04 | 曝気槽内混合液のｓｖｉ改良方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3436307A1 DE3436307A1 (de) | 1985-04-18 |
| DE3436307C2 true DE3436307C2 (de) | 1995-11-23 |
Family
ID=16171644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19843436307 Expired - Lifetime DE3436307C2 (de) | 1983-10-04 | 1984-10-03 | Verfahren zur Verbesserung des Schlammvolumenindex von Mischwasser in einem Belüftungsbecken |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4790939A (en, 2012) |
| JP (1) | JPS6078696A (en, 2012) |
| DE (1) | DE3436307C2 (en, 2012) |
| FR (1) | FR2552753B1 (en, 2012) |
| GB (1) | GB2148269B (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006034157A1 (de) * | 2006-07-24 | 2008-01-31 | Siemens Ag | Abwasserreinigungseinrichtung |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4690971A (en) * | 1985-03-05 | 1987-09-01 | Allied Colloids Limited | Water absorbing polymers |
| JPH0248015U (en, 2012) * | 1988-09-22 | 1990-04-03 | ||
| JPH047007U (en, 2012) * | 1990-05-08 | 1992-01-22 | ||
| CA2095804A1 (en) * | 1992-06-19 | 1993-12-20 | John K. Berrigan, Jr. | Combined metals and carbonaceous components removal in a biophysical treatment system |
| FR2732006A1 (fr) * | 1995-03-20 | 1996-09-27 | Degremont | Perfectionnements apportes a la deshydratation des boues provenant d'operations de traitement d'eau |
| JP3332722B2 (ja) * | 1996-05-28 | 2002-10-07 | シャープ株式会社 | 有機排水処理方法および有機排水処理装置 |
| EP0945407B1 (de) * | 1998-03-16 | 2002-06-05 | VA TECH WABAG Deutschland GmbH & Co. KG | Verfahren zur Wasseraufbereitung in getrennten Linien |
| US7344643B2 (en) | 2005-06-30 | 2008-03-18 | Siemens Water Technologies Holding Corp. | Process to enhance phosphorus removal for activated sludge wastewater treatment systems |
| CN101300196A (zh) | 2005-09-02 | 2008-11-05 | 西门子水处理技术公司 | 从低产废水处理工艺中筛分惰性固体 |
| WO2007089481A2 (en) * | 2006-01-25 | 2007-08-09 | Siemens Water Technologies Corp. | Conditioning system for activated sludge wastewater treatment processes |
| US7473364B2 (en) | 2006-03-07 | 2009-01-06 | Siemens Water Technologies Corp. | Multivalent metal ion management for low sludge processes |
| US8894856B2 (en) | 2008-03-28 | 2014-11-25 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
| US8623213B2 (en) * | 2008-03-28 | 2014-01-07 | Siemens Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
| WO2011068931A1 (en) * | 2009-12-03 | 2011-06-09 | Siemens Industry, Inc. | Systems and methods for nutrient removal in biological treatment systems |
| WO2011133738A1 (en) | 2010-04-21 | 2011-10-27 | Siemens Pte. Ltd. | Methods and systems for treating wastewater |
| WO2012024279A1 (en) | 2010-08-18 | 2012-02-23 | Siemens Industry, Inc. | Contact-stabilization/prime-float hybrid |
| US9359236B2 (en) | 2010-08-18 | 2016-06-07 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
| GB2527989B (en) | 2013-05-06 | 2020-04-22 | Evoqua Water Tech Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
| RU174586U1 (ru) * | 2015-12-15 | 2017-10-23 | Федеральное государственное автономное образовательное учреждение высшего образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" (САФУ) | Система аэробной биологической очистки сточных вод |
| JP7453068B2 (ja) * | 2020-06-05 | 2024-03-19 | 水ｉｎｇ株式会社 | 排水処理方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3341632A (en) * | 1964-06-24 | 1967-09-12 | Union Carbide Corp | Production of organic trithiophosphites |
| US3386910A (en) * | 1965-05-25 | 1968-06-04 | Fmc Corp | Process for treatment of sewage and nutrient removal |
| DE1759733A1 (de) * | 1967-06-02 | 1971-09-23 | Stenberg Flygt Ab | Verfahren fuer Abwasserbehandlung mittels Flockung und Belebung |
| US3787316A (en) * | 1970-01-29 | 1974-01-22 | Fmc Corp | Foam flotation concentration of sewage |
| US4046684A (en) * | 1974-06-21 | 1977-09-06 | Ebara Infilco Kabushiki Kaisha | Process for the treatment of a colloidal suspension |
| US3959124A (en) * | 1974-07-15 | 1976-05-25 | Sweco, Inc. | Method and apparatus for the activated sludge treatment of wastewater |
| GB1509481A (en) * | 1976-01-27 | 1978-05-04 | Paterson Candy Int | Floc ballasted clarification |
| DE2652229B2 (de) * | 1976-11-16 | 1979-03-22 | Boehringer Mannheim Gmbh, 6800 Mannheim | Verfahren zur biologischen Abwasserreinigung und Anlage zu seiner Durchführung |
| FI790165A7 (fi) * | 1978-02-06 | 1979-08-07 | Itt | Foerfarande foer sekundaer behandling av avfallsvatten |
| JPS5613099A (en) * | 1979-07-10 | 1981-02-07 | Nichireki Chem Ind Co Ltd | Treating method of sludge |
| DE3011844A1 (de) * | 1980-03-27 | 1981-10-01 | Röhm GmbH, 6100 Darmstadt | Verfahren und vorrichtung zur umwandlung und trennung von in einer traegerfluessigkeit enthaltenden oder eingebrachten geloesten bzw. loesbaren substanzen |
| DE3107148A1 (de) * | 1981-02-26 | 1982-09-09 | Bayer Ag, 5090 Leverkusen | Verfahren zur biologischen reinigung von abwaessern mit hohen konzentrationen an biologisch abbaubaren substanzen |
| US4452699A (en) * | 1981-05-07 | 1984-06-05 | Shinryo Air Conditioning Co., Ltd. | Method of improving the SVI of mixed liquor in aeration tank |
| NZ201483A (en) * | 1981-08-07 | 1985-08-30 | Unilever Plc | Particulate compositions useful as plant growing media additives |
| DE3378252D1 (en) * | 1982-02-19 | 1988-11-24 | Allied Colloids Ltd | Filtration of organic suspensions |
-
1983
- 1983-10-04 JP JP58185488A patent/JPS6078696A/ja active Granted
-
1984
- 1984-09-11 GB GB08422936A patent/GB2148269B/en not_active Expired
- 1984-10-03 DE DE19843436307 patent/DE3436307C2/de not_active Expired - Lifetime
- 1984-10-03 FR FR8415206A patent/FR2552753B1/fr not_active Expired
-
1986
- 1986-06-18 US US06/875,626 patent/US4790939A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006034157A1 (de) * | 2006-07-24 | 2008-01-31 | Siemens Ag | Abwasserreinigungseinrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| US4790939A (en) | 1988-12-13 |
| JPS6339312B2 (en, 2012) | 1988-08-04 |
| FR2552753B1 (fr) | 1987-07-10 |
| GB2148269B (en) | 1987-06-03 |
| JPS6078696A (ja) | 1985-05-04 |
| DE3436307A1 (de) | 1985-04-18 |
| GB2148269A (en) | 1985-05-30 |
| FR2552753A1 (fr) | 1985-04-05 |
| GB8422936D0 (en) | 1984-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3436307C2 (de) | Verfahren zur Verbesserung des Schlammvolumenindex von Mischwasser in einem Belüftungsbecken | |
| DE69618029T2 (de) | Wasserklärung mit Zugabe von kolloidalem Silika und nachfolgender Zugabe von Polyelektrolyte | |
| DE3217041C2 (en, 2012) | ||
| EP0228637B1 (de) | Copolymere aus Acrylamid und Dimethylaminopropylacrylamid als Flockungsmittel und Verfahren zum Entwässern von Klärschlämmen unter Verwendung dieser Flockungsmittel | |
| DE3439842C2 (en, 2012) | ||
| US4251363A (en) | Anionic polymeric flocculant combinations for settling phosphate slimes | |
| DE2317968A1 (de) | Verfahren zum behandeln von abwasser | |
| WO2003029151A1 (de) | Zusammensetzung und deren verwendung als koagulations- und flockungsmittel | |
| DE69000294T2 (de) | Verfahren fuer die aufbereitung von schlammhaltigem wasser. | |
| DE1107605B (de) | Verfahren zur Klaerung trueber Wasser | |
| DE3904575C2 (en, 2012) | ||
| DE2314936A1 (de) | Verfahren zum reinigen von wasser, insbesondere extrahieren von schwermetallionen | |
| DE2118486A1 (de) | Verfahren zum Reinigen von Wasser, das organische Stoffe enthält | |
| DE2626732A1 (de) | Absorptionsmittel fuer die wasseraufbereitung und verfahren zu seiner herstellung | |
| DE69108357T2 (de) | Behandlung von verdünnten säurehaltigen Lösungen. | |
| DE3908054C2 (en, 2012) | ||
| EP3567013A1 (de) | Schlammkonditionierungsmittel zur optimierung der entwässerung von schlamm | |
| DE2921329A1 (de) | Sensibilisiertes flockungsmittel zur ausflockung hydrophiler kolloidaler partikel und verwendung desselben | |
| EP0129259B1 (de) | Aktivkohleprodukt | |
| DE1517435A1 (de) | Verfahren und Vorrichtung zur Herstellung dichter Schlaemme | |
| DE2253509A1 (de) | Verfahren zur behandlung von verschmutztem wasser | |
| DE4025778A1 (de) | Verfahren zur eliminierung von phosphaten und organisch gebundenem phosphor aus abwaessern und zulaufwaessern | |
| AT304387B (de) | Verfahren und Einrichtung zum raschen und fortlaufenden Trennen feinteiliger, suspendierter Feststoffe von Flüssigkeiten | |
| DE2214756C3 (de) | Verfahren zur Klärung von Stadtwasser | |
| DE2627781C2 (de) | Biologisch-chemisches Verfahren zur Abwasserreinigung mit Dephosphatierung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8128 | New person/name/address of the agent |
Representative=s name: VOSSIUS, V., DIPL.-CHEM. DR.RER.NAT. TAUCHNER, P., |
|
| 8110 | Request for examination paragraph 44 | ||
| 8128 | New person/name/address of the agent |
Representative=s name: TAUCHNER, P., DIPL.-CHEM. DR.RER.NAT. HEUNEMANN, D |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |