EP0541586A1 - Reinigung von öl- und fettbeladenem abwasser - Google Patents
Reinigung von öl- und fettbeladenem abwasserInfo
- Publication number
- EP0541586A1 EP0541586A1 EP19910912911 EP91912911A EP0541586A1 EP 0541586 A1 EP0541586 A1 EP 0541586A1 EP 19910912911 EP19910912911 EP 19910912911 EP 91912911 A EP91912911 A EP 91912911A EP 0541586 A1 EP0541586 A1 EP 0541586A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- waste water
- talc
- oil
- grease
- wastewater
- 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.)
- Withdrawn
Links
- 239000002351 wastewater Substances 0.000 title claims description 26
- 238000004140 cleaning Methods 0.000 title abstract description 5
- 239000004519 grease Substances 0.000 title abstract description 3
- 239000000454 talc Substances 0.000 claims abstract description 17
- 229910052623 talc Inorganic materials 0.000 claims abstract description 17
- 239000003463 adsorbent Substances 0.000 claims abstract description 6
- 239000003973 paint Substances 0.000 claims abstract description 4
- 239000010985 leather Substances 0.000 claims description 3
- 235000014593 oils and fats Nutrition 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000003925 fat Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 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 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 235000012243 magnesium silicates Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
Definitions
- the invention relates to the use of talc as an agent for cleaning oil and grease-laden wastewater.
- Flocculation is understood as a comprehensive term for all those processes in which emulsified or suspended substances are separated off, whereas the precipitation relates to the removal of dissolved substances.
- Flocculants are substances which, after dissolving in water, are converted into voluminous precipitates and well destabilize suspensions or emulsions. However, this creates an additional volume of sludge, which must be treated further.
- Flotation is understood to mean the floating of a substance in a liquid, due to the introduction of the smallest possible gas bubbles. After the flotate has accumulated on the surface of the liquid, it can be removed from the system by means of surface clearers.
- Another option for cleaning oily wastewater is to use specially adapted natural microorganisms. Due to the biological metabolism, this is a real disposal in which the pollutants are actually broken down and not just relocated. The However, the rate of degradation is strongly dependent on the temperature and the nutrient supply and can also take several years.
- Adsorption methods are also frequently used for wastewater treatment, the hydrocarbons being bound to activated carbon or to adsorber resins.
- the adsorption on mica materials (DE-OS 1 167 278) or on an organophilic clay (DE-OS 37 19 929) has also already been investigated.
- US Pat. No. 4,332,693 proposes a chemical agent for the treatment of oily emulsions in industrial waste water, which consists of a multicomponent mixture with a predominant proportion of acid-activated bentonite, untreated bentonite, lime and aluminum sulfate as well as small amounts of adipic acid, talc and flocculant.
- the subsequent disposal of the loaded materials is usually carried out by incineration or by regeneration of the adsorbent using a stripper.
- talc with a certain grain size is an excellent means of separating oils and fats from wastewater loaded with them.
- talc according to the invention as an adsorbent can expediently be carried out in all companies which produce large amounts of waste water which is contaminated with high oil and fat loads.
- the contaminated waste water from leather factories, slaughterhouses, refineries, large paint shops and the like are particularly suitable for the waste water treatment according to the invention.
- Practical tests have shown that the use of talc as an adsorbent gives good results for both animal and mineral fats; both types are well bound to the talc.
- the amount of finely divided talc used will primarily depend on the concentration of the contaminant to be removed in the wastewater. This amount of talc can be of the order of magnitude be about 100 mg per 1 liter of waste water.
Landscapes
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1581/90 | 1990-07-27 | ||
| AT158190A AT394030B (de) | 1990-07-27 | 1990-07-27 | Reinigung von oel- und fettbeladenem abwasser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0541586A1 true EP0541586A1 (de) | 1993-05-19 |
Family
ID=3516510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19910912911 Withdrawn EP0541586A1 (de) | 1990-07-27 | 1991-07-24 | Reinigung von öl- und fettbeladenem abwasser |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0541586A1 (online.php) |
| JP (1) | JPH06506390A (online.php) |
| AT (1) | AT394030B (online.php) |
| AU (1) | AU8099191A (online.php) |
| CA (1) | CA2088142A1 (online.php) |
| HU (1) | HUT67593A (online.php) |
| PL (1) | PL297649A1 (online.php) |
| SK (1) | SK3493A3 (online.php) |
| WO (1) | WO1992002459A1 (online.php) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2152360C1 (ru) * | 1998-08-24 | 2000-07-10 | Санкт-Петербургский государственный университет путей сообщения | Способ очистки сточных вод от ионов металлов |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2095160T3 (es) * | 1993-03-11 | 1997-02-01 | Naintsch Mineralwerke | Procedimiento perfeccionado de depuracion de aguas residuales, del tipo "de lodos activados", que permite aumentar los rendimientos de depuracion. |
| AT401383B (de) * | 1993-03-11 | 1996-08-26 | Naintsch Mineralwerke | Verfahren zur verringerung des schlammvolumens in der biologischen abwasserreinigung und mittel hiefür |
| AT139U1 (de) * | 1994-06-01 | 1995-03-27 | Naintsch Mineralwerke | Verfahren zur biologischen abwasserreinigung, mittel und vorrichtung hierfuer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2744451A1 (de) * | 1977-10-03 | 1979-04-12 | Dieter Knauer | Verschlusseinrichtung fuer fenster, tueren o.dgl. oeffnungen |
| US4332693A (en) * | 1978-01-06 | 1982-06-01 | American Colloid Company | Agent for the purification of waste waters and process for its production |
| DE3043480A1 (de) * | 1980-11-18 | 1982-07-08 | Justin Hüppe GmbH, 2900 Oldenburg | Rolladen |
| US4496374A (en) * | 1983-02-23 | 1985-01-29 | Parker Chemical Company | Compound and process for denaturing high solids paints |
-
1990
- 1990-07-27 AT AT158190A patent/AT394030B/de not_active IP Right Cessation
-
1991
- 1991-07-24 HU HU20693A patent/HUT67593A/hu unknown
- 1991-07-24 SK SK3493A patent/SK3493A3/sk unknown
- 1991-07-24 JP JP3512132A patent/JPH06506390A/ja active Pending
- 1991-07-24 WO PCT/AT1991/000089 patent/WO1992002459A1/de not_active Ceased
- 1991-07-24 AU AU80991/91A patent/AU8099191A/en not_active Abandoned
- 1991-07-24 CA CA 2088142 patent/CA2088142A1/en not_active Abandoned
- 1991-07-24 EP EP19910912911 patent/EP0541586A1/de not_active Withdrawn
- 1991-07-24 PL PL29764991A patent/PL297649A1/xx unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9202459A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2152360C1 (ru) * | 1998-08-24 | 2000-07-10 | Санкт-Петербургский государственный университет путей сообщения | Способ очистки сточных вод от ионов металлов |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1992002459A1 (de) | 1992-02-20 |
| AU8099191A (en) | 1992-03-02 |
| HU9300206D0 (en) | 1993-09-28 |
| AT394030B (de) | 1992-01-27 |
| PL297649A1 (online.php) | 1992-07-13 |
| HUT67593A (en) | 1995-04-28 |
| SK3493A3 (en) | 1993-10-06 |
| ATA158190A (de) | 1991-07-15 |
| JPH06506390A (ja) | 1994-07-21 |
| CA2088142A1 (en) | 1992-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19930128 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19930916 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19941020 |