DE3131411C2 - - Google Patents
Info
- Publication number
- DE3131411C2 DE3131411C2 DE3131411A DE3131411A DE3131411C2 DE 3131411 C2 DE3131411 C2 DE 3131411C2 DE 3131411 A DE3131411 A DE 3131411A DE 3131411 A DE3131411 A DE 3131411A DE 3131411 C2 DE3131411 C2 DE 3131411C2
- Authority
- DE
- Germany
- Prior art keywords
- flocculant
- sludge
- movement
- suspended solids
- flocculation
- 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 - Fee Related
Links
- 239000010802 sludge Substances 0.000 claims description 108
- 238000000034 method Methods 0.000 claims description 41
- 238000005189 flocculation Methods 0.000 claims description 39
- 230000016615 flocculation Effects 0.000 claims description 38
- 239000004744 fabric Substances 0.000 claims description 31
- 229920001661 Chitosan Polymers 0.000 claims description 24
- 150000003839 salts Chemical class 0.000 claims description 13
- 150000002894 organic compounds Chemical class 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229920002125 Sokalan® Polymers 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000004584 polyacrylic acid Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- 229920002873 Polyethylenimine Polymers 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 2
- 229920006319 cationized starch Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 claims description 2
- 230000003311 flocculating effect Effects 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 235000010413 sodium alginate Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims 1
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000000661 sodium alginate Substances 0.000 claims 1
- 229940005550 sodium alginate Drugs 0.000 claims 1
- 238000003828 vacuum filtration Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 description 80
- 239000008394 flocculating agent Substances 0.000 description 32
- 238000011282 treatment Methods 0.000 description 25
- 239000000203 mixture Substances 0.000 description 23
- 125000000129 anionic group Chemical group 0.000 description 17
- 125000002091 cationic group Chemical group 0.000 description 15
- 230000002093 peripheral effect Effects 0.000 description 11
- 239000002351 wastewater Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000013019 agitation Methods 0.000 description 8
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 239000000706 filtrate Substances 0.000 description 8
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 8
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 230000015271 coagulation Effects 0.000 description 7
- 238000005345 coagulation Methods 0.000 description 7
- 239000012065 filter cake Substances 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 239000003337 fertilizer Substances 0.000 description 5
- 229920002401 polyacrylamide Polymers 0.000 description 5
- 239000013049 sediment Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 150000007522 mineralic acids Chemical class 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- -1 polyvinylimidazoline Polymers 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 235000011148 calcium chloride Nutrition 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 229910052920 inorganic sulfate Inorganic materials 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000867 polyelectrolyte Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000011085 pressure filtration Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000237074 Centris Species 0.000 description 1
- 238000006683 Mannich reaction Methods 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 238000005273 aeration 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
- 125000004103 aminoalkyl group Chemical group 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000003381 deacetylation reaction Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 229920000083 poly(allylamine) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229920005614 potassium polyacrylate Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000000725 suspension 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
- 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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- 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
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55108213A JPS593240B2 (ja) | 1980-08-08 | 1980-08-08 | 汚泥脱水法 |
| JP56011364A JPS57127500A (en) | 1981-01-28 | 1981-01-28 | Flocculation treatment for sludge |
| JP56015806A JPS57130599A (en) | 1981-02-06 | 1981-02-06 | Dehydration of sludge |
| JP56016296A JPS57130600A (en) | 1981-02-07 | 1981-02-07 | Dehydration of sludge |
| JP1686781A JPS57132509A (en) | 1981-02-09 | 1981-02-09 | Flocculation treatment of suspension |
| JP56019330A JPS57135096A (en) | 1981-02-12 | 1981-02-12 | Sludge dewatering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3131411A1 DE3131411A1 (de) | 1982-06-24 |
| DE3131411C2 true DE3131411C2 (en, 2012) | 1991-05-02 |
Family
ID=27548333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813131411 Granted DE3131411A1 (de) | 1980-08-08 | 1981-08-07 | Verfahren zum entwaessern von schlaemmen |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4382864A (en, 2012) |
| DE (1) | DE3131411A1 (en, 2012) |
| GB (1) | GB2082163B (en, 2012) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011079978A1 (de) * | 2011-07-28 | 2013-01-31 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur Entwässerung von Suspensionen |
| DE102012201438A1 (de) * | 2012-02-01 | 2013-08-01 | Biolog Biotechnologie Und Logistik Gmbh | Verfahren zur Abwasseraufbereitung |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3378252D1 (en) * | 1982-02-19 | 1988-11-24 | Allied Colloids Ltd | Filtration of organic suspensions |
| JPS6038200B2 (ja) * | 1982-04-22 | 1985-08-30 | 栗田工業株式会社 | 汚泥脱水法 |
| AT387562B (de) * | 1983-12-06 | 1989-02-10 | Walter Rieger | Verfahren zur aufarbeitung von wasserhaeltigen organischen rueckstandsmassen |
| US4759856A (en) * | 1984-04-30 | 1988-07-26 | Allied Colloids, Ltd. | Flocculation processes |
| DE3666690D1 (en) * | 1985-04-25 | 1989-12-07 | Allied Colloids Ltd | Flocculation processes |
| US4943378A (en) * | 1985-04-25 | 1990-07-24 | Allied Colloids Ltd. | Flocculation processes |
| US4609470A (en) * | 1985-07-08 | 1986-09-02 | Miles Laboratories, Inc. | Method of biopolymeric sludge dewatering |
| US4839060A (en) * | 1987-04-28 | 1989-06-13 | Suncor, Inc. | Methylated starch compositions and their use as flocculating agents for mineral wastes, such as bauxite residues |
| US5008035A (en) * | 1987-12-14 | 1991-04-16 | Nalco Chemical Company | Fluidization of heavy slurries |
| USRE37037E1 (en) | 1988-12-19 | 2001-01-30 | Cytec Technology Corp. | Emulsified mannich acrylamide polymers |
| US5723548A (en) * | 1988-12-19 | 1998-03-03 | Cytec Technology Corp. | Emulsified mannich acrylamide polymers |
| US5037881A (en) * | 1989-10-30 | 1991-08-06 | American Cyanamid Company | Emulsified mannich acrylamide polymers |
| JP2845495B2 (ja) * | 1989-07-03 | 1999-01-13 | 株式会社青木建設 | 低濃度濁水の処理工法 |
| FR2657076B1 (fr) * | 1990-01-15 | 1992-09-04 | Inst Textile De France | Utilisation de cellulose greffee pour l'epuration des eaux. |
| US5158688A (en) * | 1990-03-19 | 1992-10-27 | E. I. Du Pont De Nemours And Company | Process for removing inorganic gels and incompressible solids from acidic media |
| DE4029825A1 (de) * | 1990-09-20 | 1992-03-26 | Passavant Werke | Verfahren und vorrichtung zum konditionieren und anschliessenden entwaessern von schlaemmen |
| US5269939A (en) * | 1992-07-13 | 1993-12-14 | Laurent Edward L | Method of solids recovery for use in animal feed or as a fuel utilizing natural flocculents |
| US5433865A (en) * | 1994-03-31 | 1995-07-18 | Laurent; Edward L. | Method for treating process waste streams by use of natural flocculants |
| WO1995033690A1 (en) * | 1994-06-08 | 1995-12-14 | Vanson L.P. | Phosphate removal from aqueous media |
| SE9604610D0 (sv) * | 1996-12-16 | 1996-12-16 | Noviscens Ab | Medical composition |
| US20030209499A1 (en) * | 2000-09-29 | 2003-11-13 | Haase Richard A. | Clarification of water and wastewater |
| US6083404A (en) * | 1998-09-18 | 2000-07-04 | Nalco Chemical Company | Method of dewatering difficult sludges |
| US6602410B1 (en) * | 2000-11-14 | 2003-08-05 | The Procter & Gamble Comapny | Water purifying kits |
| JP3691768B2 (ja) * | 2001-02-08 | 2005-09-07 | 株式会社埼玉種畜牧場 | 汚泥処理方法 |
| GB0108548D0 (en) | 2001-04-05 | 2001-05-23 | Ciba Spec Chem Water Treat Ltd | Process for flocculating suspensions |
| US6749748B1 (en) * | 2001-12-28 | 2004-06-15 | Vanson Halosource, Inc. | Methods for reducing the amount of contaminants in water |
| MXNL02000016A (es) * | 2002-05-27 | 2003-12-02 | Univ Autonoma De Nuevo Leon | Procedimiento para remover metales pesados y solidos, mediante el acomplejamiento de polielectrolitos biodegradables (pectina y quitosan). |
| GB0405493D0 (en) * | 2004-03-12 | 2004-04-21 | Ciba Spec Chem Water Treat Ltd | Dewatering process |
| US20110006013A1 (en) * | 2005-02-15 | 2011-01-13 | Halosource, Inc. | Method for the removal of submicron particulates from chlorinated water by sequentially adding a cationic polymer followed by adding an anionic polymer |
| JP5000313B2 (ja) * | 2007-01-19 | 2012-08-15 | 三菱瓦斯化学株式会社 | 穀類蒸留粕の処理方法 |
| US8172983B2 (en) | 2007-09-12 | 2012-05-08 | Nalco Company | Controllable filler prefloculation using a dual polymer system |
| US9752283B2 (en) | 2007-09-12 | 2017-09-05 | Ecolab Usa Inc. | Anionic preflocculation of fillers used in papermaking |
| US8088250B2 (en) | 2008-11-26 | 2012-01-03 | Nalco Company | Method of increasing filler content in papermaking |
| JP2013506550A (ja) * | 2009-10-06 | 2013-02-28 | ユニバーシティ・オブ・テクノロジー、シドニー | 生物学的水処理性を向上させるための方法 |
| US20120145645A1 (en) * | 2010-12-13 | 2012-06-14 | Halosource, Inc. | Clarification of hydrocarbons and suspended matter from an aqueous medium |
| FR2998563B1 (fr) | 2012-11-28 | 2014-12-19 | Roquette Freres | Procede d'epaississement ou de deshydratation de boues |
| CN103508536B (zh) * | 2013-10-15 | 2014-12-10 | 江苏商达水务有限公司 | 一种畜牧养殖场污水处理絮凝剂 |
| DE102014217797A1 (de) * | 2014-09-05 | 2016-03-10 | Biolog Biotechnologie Und Logistik Gmbh | Verfahren zur Schwermetallabtrennung in Flüssigkeiten |
| CN105776817B (zh) * | 2016-04-28 | 2017-04-12 | 广州市水电建设工程有限公司 | 一种城市河道淤泥快速脱水工艺 |
| CN105837702B (zh) * | 2016-05-12 | 2018-03-09 | 江南大学 | 阳离子改性交联瓜尔胶及其制备方法和应用 |
| FR3055896B1 (fr) * | 2016-09-09 | 2020-04-03 | S.P.C.M. Sa | Procede de traitement d'effluents aqueux |
| JP6838404B2 (ja) * | 2017-01-18 | 2021-03-03 | 栗田工業株式会社 | 汚泥脱水剤及び汚泥脱水方法 |
| CN106865783A (zh) * | 2017-03-05 | 2017-06-20 | 张红卫 | 一种高效生活污水处理剂及其制备方法 |
| CN107840430A (zh) * | 2017-12-18 | 2018-03-27 | 李进宅 | 一种高效污水处理剂及其制备方法和应用 |
| CN109179965B (zh) * | 2018-11-01 | 2020-11-17 | 中国农业大学 | 一种用于污泥高效脱水的复配调理剂及污泥脱水方法 |
| CN110683819B (zh) * | 2019-08-28 | 2021-08-03 | 中交一航局第三工程有限公司 | 一种高粘性海泥改性处理方法及系统 |
| IL308217A (en) * | 2021-05-05 | 2024-01-01 | Michael P Eaton | Systems, methods and compounds for the sustainable treatment of wastewater and their co-products |
| EP4504405A4 (en) * | 2023-03-08 | 2025-08-27 | Snf Group | PROCESS FOR RECOVERING ORGANOTIN-BASED CATALYSTS |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1011817B (de) * | 1938-03-07 | 1957-07-04 | Roebel & Fiedler Chem Fab K G | Verfahren zur Klaerung von Abwaessern |
| FR1283508A (fr) * | 1961-03-08 | 1962-02-02 | Gen Mills Inc | Procédé de floculation des boues |
| US3165465A (en) * | 1961-05-04 | 1965-01-12 | Armour & Co | Flocculation and settling of liquid suspensions of finely-divided minerals |
| DE1254592B (de) * | 1961-09-05 | 1967-11-23 | Dow Chemical Co | Verfahren zur Verbesserung der Filtrierbarkeit waessriger organischer Schlaemme |
| BE622154A (en, 2012) * | 1961-09-05 | 1900-01-01 | ||
| DE1245867B (de) * | 1962-05-09 | 1967-07-27 | Dr Hermann Jung | Verfahren zur Neutralisierung saurer Waesser und Abwaesser mittels koernigen kohlensauren Kalkes |
| US3259570A (en) * | 1963-03-04 | 1966-07-05 | Dow Chemical Co | Dewatering aqueous suspensions of organic solids |
| DE1300507B (de) * | 1963-03-22 | 1969-08-07 | Roehm & Haas Gmbh | Verfahren zur Erhoehung des Feststoffgehalts von Schlaemmen |
| US3338828A (en) * | 1964-07-29 | 1967-08-29 | Joseph R Clark | Purification of water supplies and aqueous wastes |
| US3288060A (en) * | 1964-10-29 | 1966-11-29 | Interchem Corp | Impression system for gravure press |
| US3377274A (en) * | 1965-01-05 | 1968-04-09 | Nalco Chemical Co | Method of coagulation of low turbidity water |
| US3397139A (en) * | 1967-01-25 | 1968-08-13 | Dow Chemical Co | Waste treatment process |
| DE1642850A1 (de) * | 1967-05-16 | 1971-03-11 | Metallgesellschaft Ag | Verfahren zur Entwaesserung von organischen Schlaemmen durch Zentrifugation |
| US3533940A (en) * | 1967-06-02 | 1970-10-13 | Quintin P Peniston | Method for treating an aqueous medium with chitosan and derivatives of chitin to remove an impurity |
| GB1310491A (en) | 1968-11-28 | 1973-03-21 | Paxman & Co Ltd Davey | Treatment of sewage sludge |
| CH535185A (de) * | 1969-06-02 | 1973-03-31 | Hefermehl Sa H P | Verfahren zum kontinuierlichen Reinigen von suspendierte Feststoffe enthaltenden Abwässern sowie Anlage zur Ausführung des Verfahrens |
| US3617568A (en) * | 1970-01-02 | 1971-11-02 | Standard Oil Co | Process for flocculating colloidal particles by the sequential addition of polymers |
| FI200074A7 (en, 2012) * | 1973-08-02 | 1975-02-13 | Hercules Inc | |
| CH593870A5 (en, 2012) * | 1974-01-07 | 1977-12-15 | Tii Corp | |
| GB1478345A (en) * | 1974-04-10 | 1977-06-29 | Ebara Infilco | Process for purifying water containing suspended matter |
| GB1454925A (en) * | 1974-06-26 | 1976-11-10 | Gec Diesels Ltd | Floculation of gelatinous sludge |
| US4105558A (en) * | 1975-04-08 | 1978-08-08 | Heinrich Hans J | Apparatus for draining of muddy liquids |
| DE2808703C2 (de) * | 1978-03-01 | 1980-03-13 | Dieter J. Dipl.-Chem. 2081 Boenningstedt Becker | Verfahren zur Abwasserreinigung unter Rückgewinnung der Fett- und Eiweißstoffe in wiederverwendbarer Form |
| DE2920434A1 (de) * | 1979-05-19 | 1980-11-20 | Basf Ag | Verfahren zur verbesserung des entwaesserungsverhaltens von schlaemmen |
-
1981
- 1981-07-27 US US06/287,453 patent/US4382864A/en not_active Expired - Lifetime
- 1981-08-07 DE DE19813131411 patent/DE3131411A1/de active Granted
- 1981-08-07 GB GB8124156A patent/GB2082163B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011079978A1 (de) * | 2011-07-28 | 2013-01-31 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur Entwässerung von Suspensionen |
| DE102011079978B4 (de) * | 2011-07-28 | 2017-10-12 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur Entwässerung von Suspensionen |
| DE102012201438A1 (de) * | 2012-02-01 | 2013-08-01 | Biolog Biotechnologie Und Logistik Gmbh | Verfahren zur Abwasseraufbereitung |
| DE102012201438B4 (de) * | 2012-02-01 | 2018-04-12 | BioLog Heppe GmbH | Verfahren zur Abwasseraufbereitung |
Also Published As
| Publication number | Publication date |
|---|---|
| US4382864A (en) | 1983-05-10 |
| GB2082163B (en) | 1983-10-26 |
| GB2082163A (en) | 1982-03-03 |
| DE3131411A1 (de) | 1982-06-24 |
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