DE19505869C1 - Sepn. of coarse particulate impurities from lacquer coagulate, esp. in the car industry - Google Patents
Sepn. of coarse particulate impurities from lacquer coagulate, esp. in the car industryInfo
- Publication number
- DE19505869C1 DE19505869C1 DE1995105869 DE19505869A DE19505869C1 DE 19505869 C1 DE19505869 C1 DE 19505869C1 DE 1995105869 DE1995105869 DE 1995105869 DE 19505869 A DE19505869 A DE 19505869A DE 19505869 C1 DE19505869 C1 DE 19505869C1
- Authority
- DE
- Germany
- Prior art keywords
- coagulate
- lacquer
- suspension
- water
- sieved
- 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
- 239000004922 lacquer Substances 0.000 title claims abstract description 13
- 239000012535 impurity Substances 0.000 title claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000725 suspension Substances 0.000 claims abstract description 15
- 239000010802 sludge Substances 0.000 claims abstract description 10
- 239000008346 aqueous phase Substances 0.000 claims abstract description 6
- 239000012071 phase Substances 0.000 claims abstract description 5
- 239000003973 paint Substances 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 description 3
- 229930186657 Lat Natural products 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
- B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/46—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
- B05B14/462—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material and separating the excess material from the washing liquid, e.g. for recovery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/065—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts containing impurities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
- B29L2009/005—Layered products coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3055—Cars
-
- 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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
Description
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Abtrennung von grobstückigen Verunreinigungen aus Lackkoagu lat.The present invention relates to a method for Removal of coarse dirt from paint coagu lat.
Aus der EP-0 484 332 sind ein Verfahren und eine Vorrichtung zur Verwertung von Reststoffen aus Lackierereien bekannt, welche sich ausgezeichnet bewährt haben. Insbesondere kommen diese zur Anwendung zur Verwertung von Lackschlämmen aus den unterschiedlichen Prozessen, insbesondere der Automobilin dustrie.EP-0 484 332 discloses a method and an apparatus known for recycling residues from paint shops, which have proven to be excellent. Come in particular these for use in the recycling of paint sludge from the different processes, especially the automobile industry.
Die DE-C-34 08 151 beschreibt ein Verfahren zur Behandlung von wasserhaltigem Lackschlamm, bei dem zunächst ein Teil des Wassers zugesetzt und zu einer Lackschlammsuspension gemischt wird, von der dann Wasser abgetrennt wird, indem nach dem Mischen die Lackschlammsuspension durch Zentrifugieren in Wasser und wasserarmes Lackkoagulat aufgetrennt wird.DE-C-34 08 151 describes a method for treatment of water-borne paint sludge, in which initially a part of water and added to a paint sludge suspension is mixed, from which water is then separated by after mixing the paint sludge suspension Centrifuge in water and low-water lacquer coagulate is separated.
Die DE-OS 15 17 904 beschreibt ein Verfahren zum Abtrennen von Feststoffen aus Schlamm und ähnlichen Suspensionen, insbesondere aus der Reinigung von industriellen und kommunalen Abfällen.DE-OS 15 17 904 describes a method for separating solids from sludge and similar suspensions, especially from the cleaning of industrial and municipal waste.
In der Automobilindustrie werden unterschiedliche Werkstoffe im sogenannten Naßverfahren beschichtet. Bei der Applikation des Lackes auf dem Werkstück werden jedoch auch größere Mengen an Lack daran vorbeigesprüht und mit einem Wasserfilm ausgewaschen. Der im Wasser enthaltene Lack wird oftmals mittels chemischer Zusätze zum sogenannten Lackkoagulat umformuliert und als Produktionsrückstand aus dem Produktionsprozeß ausgetragen. Dieser Rückstand wird meist in offenen Behältern gesammelt und für den Abtransport bereitgestellt. Diese unbeschränkte Zugänglichkeit zu den Schlamm-Sammelbehältern führt aber dazu, daß sich neben den bei der Lackierung eingetragenen Fremdkörpern auch andere grobstückige Abfälle in den gesammelten Rohkoagulaten wiederfinden.Different materials are used in the automotive industry coated in the so-called wet process. In the application of the paint on the workpiece, however, also become larger Amounts of paint sprayed past it and with a water film washed out. The paint contained in the water is often by means of chemical additives to the so-called lacquer coagulate reformulated and as a production residue from the Production process carried out. This backlog is mostly collected in open containers and for removal provided. This unlimited accessibility to the Mud collecting tanks leads to the fact that in addition to the other foreign objects entered during painting large pieces of waste in the collected raw coagulates find again.
Damit diese verunreinigten Lackkoagulate nicht als Sonderab fall in einer Deponie oder einer Sonderabfallverbrennung entsorgt werden müssen, sondern ebenfalls einer stofflichen oder energetischen Verwertung gemäß EP-0 484 332 zugeführt werden können, stellt sich die Aufgabe, diese Lackkoagulate von grobstückigen Verunreinigungen zu befreien und nach Mög lichkeit darüber hinaus optimal für die weitere Verarbeitung zu konditionieren.So that these contaminated lacquer coagulates are not a special item in a landfill or hazardous waste incineration must be disposed of, but also a material or energetic utilization according to EP-0 484 332 the task arises, these lacquer coagulates to get rid of coarse dirt and after Mög also ideal for further processing to condition.
Die bei dem Verfahren gemäß EP-0 484 332 eingesetzten Anlagen sind so ausgelegt, daß sie flüssige und zähpastöse Stoffe trocknen können. Sie sind jedoch empfindlich gegen grobstücki ge Fremdkörper. Schließlich ist zu beachten, daß die Trock nung und Weiterverarbeitung von Lackkoagulaten in diesen Vorrichtungen rascher und mit geringerem Energieaufwand er folgen kann, wenn die Lackkoagulate bereits einen hohen Trockensubstanzgehalt aufweisen. Es ist somit zusätzlich erstrebenswert, diesen Trockensubstanzgehalt des Lackkoagu lats zu erhöhen.The systems used in the process according to EP-0 484 332 are designed so that they are liquid and pasty substances can dry. However, they are sensitive to large pieces foreign matter. Finally, it should be noted that the dry Treatment and further processing of paint coagulates in these Devices faster and with less energy can follow if the lacquer coagulate already has a high Have dry matter content. It is therefore additional desirable, this dry matter content of the Lackkoagu increase lats.
Diese Aufgaben können überraschend einfach dadurch gelöst werden, daß die verunreinigten Lackkoagulate mit Wasser zu einer pumpfähigen Suspension vermischt werden, diese Suspen sion gesiebt und anschließend durch Einwirkung von Flieh kraft aufgetrennt wird in eine wäßrige Phase und eine Schlamm phase mit mehr als 40 Gew.-% Trockensubstanz. Gegebenenfalls werden die verunreinigten Lackkoagulate vor der Zugabe von Wasser grob gesiebt, um Stücke über 10 cm Durchmesser zu entfernen. Vorzugsweise wird die Viskosität der pumpfähigen Suspension so eingestellt, daß ihr Trockensubstanzgehalt Werte kleiner/gleich 15 Gew.-% aufweist. Die Siebung der Suspension erfolgt so, daß alle Stücke mit einem Durchmesser über 5 mm, vorzugsweise sogar über 3 mm entfernt werden. These tasks can be solved surprisingly easily be that the contaminated paint coagulates with water too a pumpable suspension are mixed, these suspensions sion and then by the action of flee force is separated into an aqueous phase and a sludge phase with more than 40 wt .-% dry matter. Possibly the contaminated paint coagulates before adding Roughly sieved water to pieces over 10 cm in diameter remove. The viscosity of the pumpable is preferably Suspension adjusted so that its dry matter content Has values less than or equal to 15 wt .-%. The screening of the Suspension is done so that all pieces with a diameter over 5 mm, preferably even over 3 mm.
Die Abtrennung der wäßrigen Phase durch Fliehkraft erfolgt entweder über eine Zentrifuge oder durch Dekantierung. Die dabei abgetrennte wäßrige Phase kann in das Verfahren zurück geführt und erneut mit gegebenenfalls grob gesiebtem Lack koagulat vermischt werden.The aqueous phase is separated off by centrifugal force either via a centrifuge or by decanting. The the separated aqueous phase can be returned to the process led and again with possibly coarsely sieved paint be coagulated.
Es erschien zunächst widersinnig, den Trockensubstanzgehalt des Lackkoagulats durch Zugabe von Wasser zu senken, da davon auszugehen war, daß dieses Wasser anschließend durch Ver dampfung wieder entfernt werden muß. Erfindungsgemäß ist es aber nicht nur möglich, dieses Wasser durch Einwirkung von Fliehkraft wieder zu entfernen, sondern es in das Verfahren zurückzuführen, wobei eine Schlammphase mit einem höheren Trockensubstanzgehalt als das Ausgangsprodukt entsteht. Weiterhin ist es möglich, dem Gemisch aus Lackkoagulat und Wasser mineralische Additive und/oder heizwertreiche Rest stoffe zuzusetzen, die dann zusammen mit dem getrockneten Lackkoagulat der Verwertung zugeführt werden. Dies erfolgt vorzugsweise vor der Abtrennung der Flüssigphase durch Flieh kraft.At first it seemed absurd, the dry matter content of the lacquer coagulate by adding water because of it it was assumed that this water was subsequently extracted by Ver vaporization must be removed again. It is according to the invention but not only possible this water by exposure to Centrifugal force to remove it again but in the process attributed, being a sludge phase with a higher Dry matter content as the starting product. It is also possible to mix the mixture of lacquer and Water mineral additives and / or rest high in calorific value add substances, which then together with the dried Coagulate paint can be recycled. this happens preferably before separating the liquid phase by centrifugation force.
Durch den Zusatz von Wasser zum Lackkoagulat ist es möglich, eine niedrigviskose, pumpfähige Suspension vorzugsweise mit einem Trockensubstanzgehalt kleiner/gleich 15 Gew.-% zu er halten. Diese Suspension läßt sich gut sieben und durch Flieh kraft wieder auftrennen.By adding water to the paint coagulate, it is possible to a low-viscosity, pumpable suspension, preferably with a dry matter content of less than or equal to 15% by weight hold. This suspension can be sieved well and by fleeing rip open again.
Es ist erfindungsgemäß durchaus möglich, die Schlammphase auf ein Trockensubstanzgehalt bis zu 70 Gew.-% anzureichern und dadurch den Energieaufwand bei der anschließenden Trock nung deutlich zu reduzieren. According to the invention, it is quite possible the sludge phase Enrich to a dry matter content of up to 70% by weight and thereby the energy consumption during the subsequent drying reduce significantly.
Die durch Siebung entfernten groben und feineren festen Ver unreinigungen lassen sich leicht als Abfälle beseitigen. Gegebenenfalls können auch sie in vermahlenem Zustand einer Verwertung zugeführt werden.The coarse and finer solid ver removed by sieving impurities can easily be removed as waste. If necessary, they can also be in the ground state Recovery can be supplied.
Das erfindungsgemäße Verfahren wurde entwickelt, um das Ver fahren gemäß EP-0 484 332 zu optimieren. Das Verfahren kann aber auch zur Anwendung kommen, um andere Aufbereitungsver fahren und Verwertungsverfahren von koagulierten Reststoffen aus Lackierereien vorgeschaltet zu werden, so daß auch diese unproblematischer durchgeführt werden können.The inventive method was developed to Ver drive to optimize according to EP-0 484 332. The procedure can but also apply to other processing processes driving and recovery process of coagulated residues to be upstream from paint shops, so that these too can be carried out more easily.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995105869 DE19505869C1 (en) | 1995-02-21 | 1995-02-21 | Sepn. of coarse particulate impurities from lacquer coagulate, esp. in the car industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995105869 DE19505869C1 (en) | 1995-02-21 | 1995-02-21 | Sepn. of coarse particulate impurities from lacquer coagulate, esp. in the car industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19505869C1 true DE19505869C1 (en) | 1996-07-11 |
Family
ID=7754568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1995105869 Expired - Lifetime DE19505869C1 (en) | 1995-02-21 | 1995-02-21 | Sepn. of coarse particulate impurities from lacquer coagulate, esp. in the car industry |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19505869C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19754226A1 (en) * | 1997-12-06 | 1999-06-10 | Volkswagen Ag | Device and method for separating solid foreign bodies from a liquid, pasty, plastic or fine-grained material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1517904A1 (en) * | 1965-04-22 | 1970-02-26 | Ejefors Karl Goeran | Method and device for separating solids from sludge |
| DE3408151C2 (en) * | 1984-03-06 | 1987-04-30 | LEWAG AG Anlagen und Geräte, 1000 Berlin | Process and system for dewatering water-containing paint sludge |
| EP0484332B1 (en) * | 1989-07-22 | 1994-01-26 | GFR GESELLSCHAFT FÜR DIE AUFBEREITUNG UND VERWERTUNG VON RESTSTOFFEN mbH | Process and device for utilizing paint shop residues, etc. |
-
1995
- 1995-02-21 DE DE1995105869 patent/DE19505869C1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1517904A1 (en) * | 1965-04-22 | 1970-02-26 | Ejefors Karl Goeran | Method and device for separating solids from sludge |
| DE3408151C2 (en) * | 1984-03-06 | 1987-04-30 | LEWAG AG Anlagen und Geräte, 1000 Berlin | Process and system for dewatering water-containing paint sludge |
| EP0484332B1 (en) * | 1989-07-22 | 1994-01-26 | GFR GESELLSCHAFT FÜR DIE AUFBEREITUNG UND VERWERTUNG VON RESTSTOFFEN mbH | Process and device for utilizing paint shop residues, etc. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19754226A1 (en) * | 1997-12-06 | 1999-06-10 | Volkswagen Ag | Device and method for separating solid foreign bodies from a liquid, pasty, plastic or fine-grained material |
| EP0920922A3 (en) * | 1997-12-06 | 2000-12-27 | Volkswagen Aktiengesellschaft | Method and device for separating foreign solid bodies from fluid, pasty, plastic or fine grained material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69835445T2 (en) | METHOD OF RECOVERING HIGH QUALITY OIL FROM REFINERY WASTE EMULSIONS | |
| DE2555093C2 (en) | Process and device for the recovery of metals | |
| WO1998018607A1 (en) | Process for disaggregating waste materials which contain at least partially reusable elements | |
| DE4106281A1 (en) | METHOD FOR THE TREATMENT OF WATER-CONTAINING MATERIALS LOADED WITH ORGANIC CONTAMINATORS USING EASILY FLUID AND WATER-FREE MIXABLE ORANGE SOLVENTS | |
| DE19719034A1 (en) | Process for cleaning contaminated floors | |
| EP0319076B1 (en) | Process for cleaning waste water leaving a paint-spray booth | |
| DE69220665T2 (en) | GET TREATMENT AND RECOVERY OF OVERSPRAY WHEN SPRAYING ON WATER-SOLUBLE COATINGS | |
| DE19505869C1 (en) | Sepn. of coarse particulate impurities from lacquer coagulate, esp. in the car industry | |
| DE4119303A1 (en) | METHOD FOR DISASSEMBLING PIECE OF WASTE MIXTURES, THE METAL PARTS, SOLUBLE POLYMERS, IN PARTICULAR. FROM (CHLORINE) HYDROCARBONS, SOFTENERS AND COLORS AND ADDITIVES CONTAINED IN TWO OR TWO. THREE RECYCLABLE COMPONENTS AND RESIDUAL WASTE TO BE DISPOSED WITHOUT CHLORINE HYDROGEN | |
| DE69515436T2 (en) | Process for the treatment of water when cleaning sugar beet | |
| DE69008054T2 (en) | Process for treating waste water containing water-soluble ink. | |
| DE4238719A1 (en) | Paint and print shop waste water processing | |
| EP0553408A1 (en) | Process and apparatus for reprocessing and reusing aqueous oil and/or fat containing cleaning solution | |
| DE69629680T2 (en) | MICROWAVE SUPPORTED CLEANING AND RECYCLING OF INDUSTRIAL WASTE | |
| DE2721840C2 (en) | Process for the recovery of useful materials from waste containing metals and non-metals | |
| EP0606291B1 (en) | Process and device for recovering components from dyestuff dispersions | |
| AT394030B (en) | PURIFICATION OF OIL AND Grease-laden Waste Water | |
| DE19520399C2 (en) | Process and device for the treatment of waste water from wet dedusting from shredder systems | |
| DE3821761C2 (en) | ||
| DE4124915A1 (en) | Improved processing waste water - by combining wash water contg. active washing cpds. with rinsing water, filtering and processing by flotation for re-use | |
| DE4407826A1 (en) | Ultrasonic treatment of materials, esp. contaminated soils | |
| DE4312429C2 (en) | Process for the dry preparation of an initial mixture of waste plastic and impurities mainly containing plastic parts, and application of the process to special waste plastics | |
| DE4410229A1 (en) | Classification and cleaning of sediments drained esp. from shipping lanes | |
| EP0607502B1 (en) | Process for recycling solvent-containing wastes of synthetic resin varnishes | |
| EP0348555A2 (en) | Method of recovering pigments and binders from coagulated paint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8363 | Opposition against the patent | ||
| 8330 | Complete disclaimer |