NO157848B - PROCEDURE FOR THE CONVERSION OF LIQUID WASTE, LIKE WATER BASED AND PAINTING, FOR SOLID AND DISPOSABLE MATERIAL. - Google Patents
PROCEDURE FOR THE CONVERSION OF LIQUID WASTE, LIKE WATER BASED AND PAINTING, FOR SOLID AND DISPOSABLE MATERIAL. Download PDFInfo
- Publication number
- NO157848B NO157848B NO851565A NO851565A NO157848B NO 157848 B NO157848 B NO 157848B NO 851565 A NO851565 A NO 851565A NO 851565 A NO851565 A NO 851565A NO 157848 B NO157848 B NO 157848B
- Authority
- NO
- Norway
- Prior art keywords
- solid
- weight
- water
- painting
- conversion
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 11
- 239000007787 solid Substances 0.000 title claims description 10
- 239000000463 material Substances 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 9
- 239000010808 liquid waste Substances 0.000 title description 3
- 238000006243 chemical reaction Methods 0.000 title 1
- 239000006185 dispersion Substances 0.000 claims description 14
- 235000019353 potassium silicate Nutrition 0.000 claims description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000047 product Substances 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
-
- 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
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
Oppfinnelsen vedrører en fremgangsmåte for omdannelse av flytende avfall, spesielt vannbasert beis og maling, til fast og deponerbart materiale. The invention relates to a method for converting liquid waste, especially water-based stain and paint, into solid and depositable material.
Ved produksjon og salg av vannbaserte produkter inneholdende mye dispergert materiale, spesielt beis og maling, oppstår det betydelige mengder ukurant vare. Til en viss grad kan en slik vare benyttes om igjen i produksjonen ved såkalt bortblanding. En ellers vanlig metode er å brenne slikt avfall i dertil egnede forbrenningsanlegg. Da fraktomkost-ningene kan bli store og brennverdien er liten, blir brenning en relativt dyr metode. In the production and sale of water-based products containing a lot of dispersed material, especially stains and paints, significant quantities of out-of-date goods are produced. To a certain extent, such a product can be used again in production by so-called disposal. An otherwise common method is to burn such waste in suitable incineration plants. As the freight costs can be high and the burning value is small, burning becomes a relatively expensive method.
Deponering av flytende produkter direkte på fyllplass er av miljøhensyn ikke tillatt. Depositing liquid products directly at the landfill is not permitted for environmental reasons.
Ved frysing og tining, eller ved tilsetning av metallsalter, vil mange produkter danne en fast fase som kan deponeres. Man får imidlertid også utskilt en vannfase som vil inneholde tensider, salter, vannoppløslige fortykkere osv. Deponering av dette vannet blir også et problem. During freezing and thawing, or when metal salts are added, many products will form a solid phase that can be deposited. However, a water phase is also secreted which will contain surfactants, salts, water-soluble thickeners etc. Disposal of this water also becomes a problem.
Hensikten med oppfinnelsen er å tilveiebringe en fremgangsmåte som omdanner flytende avfall til fast og deponerbart materiale. The purpose of the invention is to provide a method that converts liquid waste into solid and depositable material.
Oppfinnelsen vedrører følgelig en fremgangsmåte til å omdanne konsentrerte, flytende dispersjoner til fast deponerbart materiale, spesielt avfall fra maling- og polymerindustrien hvor det til dispersjonene settes 0,1-10 vektdeler konsentrert svovelsyre i det fremgangsmåten er karakterisert ved at det i tillegg tilsettes inntil 50 vektdeler vannglass pr. 100 vektdeler avfall. The invention therefore relates to a method for converting concentrated, liquid dispersions into solid depositable material, especially waste from the paint and polymer industry where 0.1-10 parts by weight of concentrated sulfuric acid is added to the dispersions in which the method is characterized by the addition of up to 50 weight parts water glass per 100 parts by weight of waste.
Ved en foretrukket utførelse hvor det til dispersjonen settes 0,1-10 vektdeler konsentrert syre, tilsettes fordelaktig 0,1-20 vekt-5é natron-vannglass. In a preferred embodiment where 0.1-10 parts by weight of concentrated acid are added to the dispersion, advantageously 0.1-20 parts by weight of soda-water glass are added.
Ved tilsetning av syre, gjerne konsentrert svovelsyre og vannglass (silikatoppløsning) får man en grynet, fast masse og man unngår problemene ved tidligere kjente metoder. Deponeringsomkostningene reduseres betydelig, ofte inntil 75*. By adding acid, preferably concentrated sulfuric acid and water glass (silicate solution), a gritty, solid mass is obtained and the problems with previously known methods are avoided. Deposit costs are reduced significantly, often up to 75*.
Fremgangsmåten ifølge oppfinnelsen kan bl.a. benyttes på følgende typer dispersjoner, alle med over 20 vekt-* fast materiale: a) Polymerdispersjoner av typen polyvinylacetat, polyakrylat, polyvinylklorid, polystyren eller kopolymerdispersjoner av vanlig type benyttet i maling-, lim-, papir-, tekstilin-dustrien med flere, The method according to the invention can i.a. used on the following types of dispersions, all with more than 20 weight-* of solid material: a) Polymer dispersions of the type polyvinyl acetate, polyacrylate, polyvinyl chloride, polystyrene or copolymer dispersions of the usual type used in the paint, glue, paper, textile industry and more,
b) Vannbaserte malinger, lakker, beiser, bestrykningsmidler bestående av bl.a. ovennevnte dispersjoner og fyllstoffer b) Water-based paints, varnishes, stains, coatings consisting of, among other things above mentioned dispersions and fillers
og/eller pigmenter m.m., and/or pigments etc.,
c) Forskjellige typer slam og konsentrerte emulsjoner/suspen-sjoner/dispersjoner av faste og flytende materialer. c) Different types of sludge and concentrated emulsions/suspensions/dispersions of solid and liquid materials.
Noen dispersjoner eller emulsjoner er relativt svakt stabili-sert med anioniske tensider m.m. En tilsetning av 0,1-5* konsentrert syre, spesielt svovelsyre, kan da være nok for å omdanne disse dispersjoner og emulsjoner til en grynet, fast masse. Vannglass benyttes med fordel sammen med syren og syremengden kan da reduseres. Ved anvendelse av vannglass reduseres faren for utlekking av vann fra massen og konsi-stensen blir best. De best stabiliserte produktene kan inneholde kompliserte stabiliseringssystemer, f.eks. med ioniske grupper kovalent bundet til partikkeloverflaten. En sikker løsning for fastgjøring av slike "vanskelige" produkter er å benytte tilsetning av både syre og vannglass. Some dispersions or emulsions are relatively weakly stabilized with anionic surfactants, etc. An addition of 0.1-5* concentrated acid, especially sulfuric acid, may then be enough to convert these dispersions and emulsions into a gritty, solid mass. Glass of water is advantageously used together with the acid and the amount of acid can then be reduced. When using water glass, the risk of water leaking from the mass is reduced and the consistency is better. The best stabilized products may contain complicated stabilization systems, e.g. with ionic groups covalently bound to the particle surface. A safe solution for fixing such "difficult" products is to use the addition of both acid and water glass.
Med vannglass forstås vandige oppløsninger av alkalisilikat, gjerne natriumsilikat. Forholdet mellom Si02 og Na20 i disse, kan gjerne være ca. 3,3 og 2,6, dvs. "nøytralt" og "alkalisk" vannglass. Water glass refers to aqueous solutions of alkali silicate, preferably sodium silicate. The ratio between Si02 and Na20 in these may well be approx. 3.3 and 2.6, i.e. "neutral" and "alkaline" water glasses.
Nærmere beskrivelse av vannglass finnes i datablad fra produsentene og f.eks. i R.K. Iler "The Chemistry of Silica", John Wiley & Sons, New York 1979. Generelt kan alle vann-glasstyper benyttes. Tørrstoffinnholdet i slike vannglass-produkter er gjerne 30-50*. Angitte mengder her refererer til oppløsning og ikke til rent silikat. A more detailed description of water glasses can be found in data sheets from the manufacturers and e.g. in R.K. Iler "The Chemistry of Silica", John Wiley & Sons, New York 1979. In general, all water-glass types can be used. The dry matter content in such water glass products is usually 30-50*. Amounts given here refer to solution and not to pure silicate.
Eksempel 1 Example 1
100 kg av en vanlig polyvinylacetatbasert lateksmaling ble under god omrøring tilsatt 5 kg natron vannglass, type 38/40 fra firmaet Krystal, Drammen, og 1,5 kg konsentrert teknisk svovelsyre. Det ble med en gang oppnådd en omdannelse til et fast grynet materiale som ikke skilte ut merkbare mengder med vann, og avfallet kan etter behandlingen deponeres direkte på fyllplassen. 100 kg of a regular polyvinyl acetate-based latex paint was added, with good stirring, to 5 kg of soda water glass, type 38/40 from the company Krystal, Drammen, and 1.5 kg of concentrated technical sulfuric acid. A transformation into a solid gritty material was immediately achieved which did not secrete appreciable amounts of water, and the waste can be deposited directly on the landfill site after treatment.
Eksempel 2 Example 2
100 kg av en avansert beis basert på polyakryldispersjon og alkydemulsjon ble under god omrøring raskt tilsatt 10 kg natron-vannglass, type 48/50 og 6 kg konsentrert svovelsyre. Den flytende masse ble hurtig omdannet til et fast og deponerbart materiale. 100 kg of an advanced stain based on polyacrylic dispersion and alkyd emulsion was quickly added with good stirring to 10 kg of soda-water glass, type 48/50 and 6 kg of concentrated sulfuric acid. The liquid mass was quickly converted into a solid and depositable material.
Eksempel 3 Example 3
100 kg av en polyakrylatdispersjon, "Primal AC-235" fra Rohm & Haas, ble tilsatt 3 kg konsentrert svovelsyre og 10 kg natron-vannglass, type 38/40. Resultatet ble en fast masse velegnet for deponering på fyllplass. 100 kg of a polyacrylate dispersion, "Primal AC-235" from Rohm & Haas, was added with 3 kg of concentrated sulfuric acid and 10 kg of soda-water glass, type 38/40. The result was a solid mass suitable for landfilling.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO851565A NO157848C (en) | 1985-04-18 | 1985-04-18 | PROCEDURE FOR THE CONVERSION OF LIQUID WASTE, LIKE WATER BASED AND PAINTING, FOR SOLID AND DISPOSABLE MATERIAL. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO851565A NO157848C (en) | 1985-04-18 | 1985-04-18 | PROCEDURE FOR THE CONVERSION OF LIQUID WASTE, LIKE WATER BASED AND PAINTING, FOR SOLID AND DISPOSABLE MATERIAL. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO851565L NO851565L (en) | 1986-12-23 |
| NO157848B true NO157848B (en) | 1988-02-22 |
| NO157848C NO157848C (en) | 1988-06-01 |
Family
ID=19888240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO851565A NO157848C (en) | 1985-04-18 | 1985-04-18 | PROCEDURE FOR THE CONVERSION OF LIQUID WASTE, LIKE WATER BASED AND PAINTING, FOR SOLID AND DISPOSABLE MATERIAL. |
Country Status (1)
| Country | Link |
|---|---|
| NO (1) | NO157848C (en) |
-
1985
- 1985-04-18 NO NO851565A patent/NO157848C/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO851565L (en) | 1986-12-23 |
| NO157848C (en) | 1988-06-01 |
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