NO150372B - PROCEDURE FOR DESTRUCTION OF PROBLEM WASTE - Google Patents
PROCEDURE FOR DESTRUCTION OF PROBLEM WASTE Download PDFInfo
- Publication number
- NO150372B NO150372B NO810780A NO810780A NO150372B NO 150372 B NO150372 B NO 150372B NO 810780 A NO810780 A NO 810780A NO 810780 A NO810780 A NO 810780A NO 150372 B NO150372 B NO 150372B
- Authority
- NO
- Norway
- Prior art keywords
- waste
- water
- pumpable
- lumps
- dispersion
- Prior art date
Links
- 239000002699 waste material Substances 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 9
- 230000006378 damage Effects 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims description 13
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 2
- 239000007970 homogeneous dispersion Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 241000196171 Hydrodictyon reticulatum Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
- C10L1/328—Oil emulsions containing water or any other hydrophilic phase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
- Pens And Brushes (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Golf Clubs (AREA)
Description
Den foreliggende oppfinnelse angår en fremgangsmåte ved destruksjon av problemavfall fra maling/lakk-industrien, plast-industrien, metall-industrien, treforedlings-industrien, skips-industrien, petrokjemi-bedrifter etc, dvs. avfall av typen kassert maling, malingsslam, fettavfall, destillasjonsrester etc, eventuelt inneholdende oljeslam, organiske forbindelser etc. The present invention relates to a method for the destruction of problem waste from the paint/varnish industry, the plastics industry, the metal industry, the wood processing industry, the shipping industry, petrochemical companies etc., i.e. waste of the type discarded paint, paint sludge, grease waste, distillation residues etc., possibly containing oil sludge, organic compounds etc.
Når den slags avfall kan betegnes som "problemavfall", er det fordi der hittil har vært store problemer med å ta hånd om slikt avfall for deponering og/eller destruksjon. En av grunnene til dette er at det i stor utstrekning dreier seg om fast, seigt eller klebrig materiale som ikke er pumpbart, idet viskositeten ligger på over 100.000 cP, samtidig som innholdet av faste stoffer er meget høyt, vanligvis på ca. 80% eller noe lavere. When this kind of waste can be described as "problem waste", it is because up until now there have been major problems in dealing with such waste for disposal and/or destruction. One of the reasons for this is that, to a large extent, it concerns solid, tough or sticky material that cannot be pumped, as the viscosity is over 100,000 cP, while the solids content is very high, usually at approx. 80% or something lower.
Man har tidligere forbrent slikt materiale i rotérovn av lignende type som cementovner. Materialet blir tilført ved den skråttstilte rotérovns øvre ende, samtidig som der har vært fyrt med olje for å øke temperaturen og derved bistå med forbrenningen av avfallet. Slike rotérovnanlegg er meget store og dyre. De arbeider med et stort luftoverskudd, og virkningsgraden er relativt lav. Such material has previously been burned in rotary kilns of a similar type to cement kilns. The material is supplied at the upper end of the inclined rotary kiln, at the same time that oil has been fired to increase the temperature and thereby assist with the incineration of the waste. Such rotary kiln systems are very large and expensive. They work with a large surplus of air, and the efficiency is relatively low.
Hensikten med oppfinnelsen er å skaffe en fremgangsmåte The purpose of the invention is to provide a method
til destruksjon av slikt problemavfall som kan utføres i vesentlig mindre og billigere anlegg, og som kan produsere varme med større virkningsgrad. for the destruction of such problematic waste which can be carried out in significantly smaller and cheaper facilities, and which can produce heat with greater efficiency.
Det har nå vist seg at slikt avfall kan dispergeres med vann, hvorved avfallet blir pumpbart og også kan benyttes som brensel i brennere av lignende type som oljebrennere. Vannet vil først og fremst virke smørende og derved hindre tilstopping av pumper og rør. It has now been shown that such waste can be dispersed with water, whereby the waste becomes pumpable and can also be used as fuel in burners of a similar type to oil burners. The water will primarily act as a lubricant and thereby prevent clogging of pumps and pipes.
Det er kjent å tilsette små vannmengder til tungolje for oppnåelse av en bedre forbrenning av oljen. Det dreier seg imidlertid ikke om så store vannmengder som ifølge den foreliggende oppfinnelse, og dessuten er tungolje allerede et pumpbart stoff. Det forhold at en mindre tilsetning av vann til tungolje bedrer oljens forbrenning, gjør det således ikke nær-liggende å dispergere tilnærmet fast problemavfall av den oven- nevnte type med vann for fremstilling av en pumpbar dispersjon. It is known to add small amounts of water to heavy oil to achieve a better combustion of the oil. However, it is not about such large amounts of water as according to the present invention, and furthermore, heavy oil is already a pumpable substance. The fact that a small addition of water to heavy oil improves the oil's combustion makes it therefore not feasible to disperse almost solid problem waste of the above-mentioned type with water to produce a pumpable dispersion.
Oppfinnelsen går nærmere bestemt ut på en fremgangsmåte The invention is more precisely based on a method
som angitt i krav 1. as stated in claim 1.
Fra GB patentskrift 1 337 116 er det kjent å forbrenne pumpbare blandinger som inneholder minst 50% olje og eventuelt andre hydrokarboner. Blandingen blir pumpet frem til brenneren av en pumpe som homogeniserer de forskjellige væsker og eventuelle findelte faststoffer som blandingen består av. Utgangs-punktet for den i patentskriftet beskrevne fremgangsmåte er således pumpbare stoffer, ikke seigt, stivt problemavfall av den type den foreliggende oppfinnelse angår. From GB patent 1 337 116 it is known to burn pumpable mixtures containing at least 50% oil and possibly other hydrocarbons. The mixture is pumped to the burner by a pump which homogenises the various liquids and any finely divided solids that the mixture consists of. The starting point for the method described in the patent document is thus pumpable substances, not tough, rigid problem waste of the type to which the present invention relates.
Problemavfallet kan mottas i f.eks. store fat som tømmes The problematic waste can be received in e.g. large barrels that are emptied
i et trau med en skovlskrue for grovdeling av klumper og seig masse under tilsetning av vann gjennom dyser for smøring og reduksjon av oppløsningsmidlers fordampningsgrad, hvoretter den grovdelte masse behandles i en hurtigblander under tilsetning av ytterligere vann for findeling av klumper og fremstilling av en homogen oppløsning og dispersjon i vannet. På denne måte kan man oppnå en blanding med et faststoffinnhold på rundt 50% og en viskositet på under 1.500 cP. Når blandingen er homogen, suges den pumpbare dispersjon som oppnås i hurtigblanderen, over i en kombinert trykk/vakuum-tank, og en ny sats føres inn i hurtigblanderen for findeling og dispergering. Den pumpbare dispersjon i trykk/vakuum-tanken presses gjennom et selvrensende filter til en lagringstank, hvor kontinuerlig omrøring fortrinnsvis finner sted. Selv uten kontinuerlig omrøring vil stoffene i blandingen bare i liten utstrekning skille seg, og dispersjonen kan derfor når som helst reetableres ved relativt liten blandingsinnsats. in a trough with a paddle screw for coarse division of lumps and tough mass while adding water through nozzles for lubrication and reducing the evaporation rate of solvents, after which the coarsely divided mass is processed in a high-speed mixer with the addition of additional water for fine division of lumps and the production of a homogeneous solution and dispersion in the water. In this way, a mixture with a solids content of around 50% and a viscosity of less than 1,500 cP can be obtained. When the mixture is homogeneous, the pumpable dispersion obtained in the rapid mixer is sucked into a combined pressure/vacuum tank, and a new batch is introduced into the rapid mixer for comminution and dispersion. The pumpable dispersion in the pressure/vacuum tank is pushed through a self-cleaning filter to a storage tank, where continuous agitation preferably takes place. Even without continuous stirring, the substances in the mixture will only separate to a small extent, and the dispersion can therefore be re-established at any time with relatively little mixing effort.
Oppfinnelsen vil i det etterfølgende bli nærmere beskrevet under henvisning til tegningen, som er et oppriss, delvis i snitt, av deler av et anlegg til utførelse av fremgangsmåten ifølge oppfinnelsen. The invention will subsequently be described in more detail with reference to the drawing, which is an elevation, partly in section, of parts of a plant for carrying out the method according to the invention.
På tegningen er der vist et trau 1 med en dobbelt skovlskrue 2 som drives av en motor 3. The drawing shows a trough 1 with a double paddle screw 2 which is driven by a motor 3.
Avfall som skal behandles, tømmes opp i trauet 1. Waste to be treated is emptied into the trough 1.
Avfallet kan leveres i tønner eller fat som etter åpning løftes opp på en bukk ved siden av trauet. Bukken kan stilles noe på skrå for at innholdet skal sige ut av tønnene. Dette vil vanligvis finne sted såfremt man tar tiden til hjelp, idet selv seigt avfall vanligvis vil være kommet ut ettér en times tid. Hvis avfallet er særlig fast, kan der benyttes håndred-skap til å påskynde uttømmingen. The waste can be delivered in barrels or barrels which, after opening, are lifted onto a trestle next to the trough. The trestle can be set slightly at an angle to allow the contents to flow out of the barrels. This will usually take place if time is used, as even tough waste will usually have come out after an hour. If the waste is particularly solid, hand tools can be used to speed up the emptying.
Avfallet kan f.eks. bestå av klebrige bindemidler og pigmenter som fås som destillasjonsrest fra maling, eller det The waste can e.g. consist of sticky binders and pigments obtained as a distillation residue from paint, or that
kan inneholde gelerte tokomponents-bindemidler og derfor være gelatinlignende med relativt store klumper. may contain gelled two-component binders and therefore be gelatin-like with relatively large lumps.
Ofte vil avfallet ha en gelert, ovenpåliggende plate-formet "kake", og selv etter at denne er tømt ut, vil avfallet ofte være meget fast og kreve at der benyttes mekaniske midler for å bevirke uttømningen. Often the waste will have a gelled, overlying plate-shaped "cake", and even after this has been emptied, the waste will often be very solid and require mechanical means to be used to effect the emptying.
Over trauet 1 kan der foreligge en rist eller et gitter. Above the trough 1 there may be a grid or a grid.
Dette gitter kan det være nødvendig å ta av hvis avfallet er særlig fast. This grid may need to be removed if the waste is particularly solid.
I trauet 1 blir klumper og seig masse grovdelt i vann tilsatt gjennom dyser. Herunder tjener vannet til smøring, samtidig som det reduserer fordampningsgraden av foreliggende organiske oppløsningsmidler. In trough 1, lumps and tough mass are coarsely divided into water added through nozzles. Below this, the water serves for lubrication, at the same time as it reduces the rate of evaporation of the organic solvents present.
Ved enden av trauet 1 er der en sluseport 4 som kan heves for å la større eller mindre deler av innholdet i trauet tømmes over i en hurtigblander 5 bestående av en beholder med en røreinnretning 6 som sitter på en vertikal aksel 7. Her kan der tilsettes ytterligere vann, og røreinnretningen vil findele faste klumper og oppløse og dispergere dem i vannet. På denne måte kan man oppnå en tilnærmet homogen blanding med et innhold av faste stoffer på ca. 50 % og en viskositet på under 1.500 cP. Den oppnådde dispergerte blanding vil flyte omtrent som motorolje. En slik blanding eller dispersjon er altså pumpbar og blir pumpet over i en kombinert trykk/vakuum-tank 8. Den pumpbare dispersjon i trykk/ vakuum-tanken presses gjennom et ikke vist selvrensende filter og videre til en lagringstank. I filteret blir metallspon og stener som kan skape vanskeligheter i brennerdysen, fraskilt. Bare ubetydelige mengder av blandingen i størrelsesorden noen få ppm holdes tilbake i filteret. At the end of the trough 1, there is a sluice gate 4 which can be raised to allow larger or smaller parts of the contents of the trough to be emptied into a rapid mixer 5 consisting of a container with a stirring device 6 which sits on a vertical shaft 7. Here you can add additional water, and the agitator will break up solid lumps and dissolve and disperse them in the water. In this way, an almost homogeneous mixture can be obtained with a solids content of approx. 50% and a viscosity of less than 1,500 cP. The resulting dispersed mixture will flow much like engine oil. Such a mixture or dispersion is thus pumpable and is pumped into a combined pressure/vacuum tank 8. The pumpable dispersion in the pressure/vacuum tank is pressed through a self-cleaning filter, not shown, and on to a storage tank. In the filter, metal shavings and stones that can create difficulties in the burner nozzle are separated. Only negligible amounts of the mixture on the order of a few ppm are retained in the filter.
Fra lagringstanken kan stoffet pumpes direkte til spesielle forstøvningsdyser i et forbrenningskammer for utnyttelse av varmeenergien i avfallet. Eventuelt kan stoffet transporteres i tankbiler til forbrenningsanlegg i f.eks. bedrifter som kan ut-nytte den frembragte varmeenergi. Denne vil naturligvis være noe redusert som følge av vanntilsetningen, men dette blir mer enn oppveid ved at der er oppnådd en konsistens av avfallet som til-later pumping og forbrenning i avfallsbrennere. From the storage tank, the substance can be pumped directly to special atomization nozzles in a combustion chamber to utilize the heat energy in the waste. If necessary, the substance can be transported in tankers to incineration plants in e.g. companies that can exploit the heat energy produced. This will of course be somewhat reduced as a result of the addition of water, but this is more than offset by the fact that a consistency of the waste has been achieved which allows pumping and burning in waste incinerators.
Prøvedrift har vist at faste, seige og klebrige stoffer, som kassert maling, malingsslam, destillasjonsrester etc, kan findeles og gjøres pumpbare. Det har videre vist seg at til-stopning av pumper og rør ikke finner sted, sannsynligvis fordi det relativt høye vanninnhold medfører en smøring ved mekanisk flateberøring. Styringen av forbrenningen blir enkel som følge av at avfallet er omdannet til pumpbar form som kan forstøves gjennom brenseldyser. Videre oppnås den samme fordel som ved innemulgering av vann i tungolje, nemlig at de innemulgerte vanndråper ved forbrenningen vil utsettes for en voldsom eks-pansjon som "sprenger" avfallspartiklene og dermed gir en ytterligere finfordeling eller forstøvning av avfallet. Trials have shown that solid, tough and sticky substances, such as discarded paint, paint sludge, distillation residues, etc., can be crushed and made pumpable. It has also been shown that clogging of pumps and pipes does not take place, probably because the relatively high water content results in lubrication by mechanical surface contact. Controlling the combustion becomes simple as a result of the waste being converted into a pumpable form that can be atomized through fuel nozzles. Furthermore, the same advantage is achieved as with the emulsification of water in heavy oil, namely that the emulsified water droplets during combustion will be exposed to a violent expansion that "explodes" the waste particles and thus provides a further fine distribution or atomization of the waste.
Det har også vist seg at røkgassene er relativt lette å rense, noe som sannsynligvis skyldes at den oppnådde forstøvning gir en agglomering av ikke brennbare stoffpartikler etter for-brenningssonen, slik at størrelsen av faststoffpartiklene i røk-gasseneøkes. Hvis røkgassene skulle være sure, kan de lett nøytraliseres ved tilsetning av f.eks. kaustisk soda, NaOH,til blandingen. It has also been shown that the flue gases are relatively easy to clean, which is probably due to the achieved atomization causing an agglomeration of non-combustible material particles after the combustion zone, so that the size of the solid particles in the flue gases increases. If the flue gases should be acidic, they can easily be neutralized by adding e.g. caustic soda, NaOH, to the mixture.
På grunn av den oppnådde forstøvning ved vanntilsetning kan luftoverskuddet reduseres til nær støkiometrisk forhold. Nærmere bestemt kan luftoverskuddet være ca. 15%, dvs. at for-holdet mellom virkelig og støkiometrisk luftmengde er ca. 1,15 mot ca. 2 ved forbrenning i fluidisert skikt og 3-4 ved for brenning i rotérovn. Det lave luftoverskuddet i forbindelse med det høye vanninnholdet vil redusere eventuell dannelse av fritt klor. Eventuelle klormolekyler vil agglomere med stoffpartikler og kan fanges opp i posefiltere. Due to the atomization achieved by adding water, the excess air can be reduced to close to stoichiometric ratio. More specifically, the excess air can be approx. 15%, i.e. that the ratio between real and stoichiometric air volume is approx. 1.15 against approx. 2 for combustion in a fluidized bed and 3-4 for combustion in a rotary kiln. The low excess air in connection with the high water content will reduce any formation of free chlorine. Any chlorine molecules will agglomerate with fabric particles and can be captured in bag filters.
Det opprinnelige avfall kan inneholde oppløsningsmidler av klasse A og B. Disse oppløsningsmidler foreligger vanligvis som en relativt liten del av blandingen, men gir allikevel grunn-lag for klassifisering som A- eller B-væske. Her vil vanntilsetningen dempe pa forgasningen av oppløsningsmidlene pga. van-nets damp-partialtrykk og forhøye flammepunktet av oppløsnings-midler som er blandbare med vann. The original waste may contain solvents of class A and B. These solvents are usually present as a relatively small part of the mixture, but still provide a basis for classification as an A or B liquid. Here, the addition of water will reduce the gasification of the solvents due to water net vapor partial pressure and raise the flash point of solvents that are miscible with water.
Risikoen for reaksjon mellom de forskjellige stoffer i blandingen har vist seg å være liten. Dette kan skyldes at vannet er en god varmeleder, og at vannet reduserer kontakten mellom stoffene. The risk of reaction between the different substances in the mixture has been shown to be small. This may be because the water is a good conductor of heat, and that the water reduces the contact between the substances.
Prøvedriften har også vist at det er meget liten korrosjon i rør og annet utstyr. Vanntilsetningen gir ingen problemer, sannsynligvis pga. de olje- og fettemulsjoner som dannes. The test operation has also shown that there is very little corrosion in pipes and other equipment. The addition of water causes no problems, probably because the oil and fat emulsions that are formed.
Claims (3)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO810780A NO150372C (en) | 1981-03-06 | 1981-03-06 | PROCEDURE FOR DESTRUCTION OF PROBLEM WASTE |
| PCT/NO1982/000013 WO1982003112A1 (en) | 1981-03-06 | 1982-03-05 | Method for destruction of problematic wastes |
| EP82900672A EP0073787B1 (en) | 1981-03-06 | 1982-03-05 | Method for destruction of problematic wastes |
| AT82900672T ATE21446T1 (en) | 1981-03-06 | 1982-03-05 | PROCEDURES FOR DESTRUCTION OF PROBLEM WASTE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO810780A NO150372C (en) | 1981-03-06 | 1981-03-06 | PROCEDURE FOR DESTRUCTION OF PROBLEM WASTE |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO810780L NO810780L (en) | 1982-09-07 |
| NO150372B true NO150372B (en) | 1984-06-25 |
| NO150372C NO150372C (en) | 1984-10-03 |
Family
ID=19885936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO810780A NO150372C (en) | 1981-03-06 | 1981-03-06 | PROCEDURE FOR DESTRUCTION OF PROBLEM WASTE |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0073787B1 (en) |
| NO (1) | NO150372C (en) |
| WO (1) | WO1982003112A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139204A (en) * | 1990-10-11 | 1992-08-18 | Chemical Waste Management, Inc. | Method for recovering hazardous waste material |
| DK171956B1 (en) * | 1995-06-23 | 1997-08-25 | Carbo Consult Ltd | Procedure for the treatment of problematic organic chemical waste and facilities for use in the process |
| GB9721318D0 (en) | 1997-10-09 | 1997-12-10 | Farr Kenneth | Operational pallet based system for handling material goods |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR511505A (en) * | 1920-03-12 | 1920-12-28 | Utilisation Des Combustibles P | Sprayer-burner |
| US1926071A (en) * | 1931-06-24 | 1933-09-12 | Joseph A Vance | Liquid fuel |
| US3241505A (en) * | 1963-07-17 | 1966-03-22 | Combustion Eng | System for regulating the supply of pulverized fuel slurry to a furnace |
| GB1337116A (en) * | 1970-11-20 | 1973-11-14 | Wintershall Ag | Process for the incineration of pumpable liquid/solid mixtures |
| US3762887A (en) * | 1970-12-14 | 1973-10-02 | Consolidation Coal Co | Fuel composition |
-
1981
- 1981-03-06 NO NO810780A patent/NO150372C/en not_active IP Right Cessation
-
1982
- 1982-03-05 EP EP82900672A patent/EP0073787B1/en not_active Expired
- 1982-03-05 WO PCT/NO1982/000013 patent/WO1982003112A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| NO810780L (en) | 1982-09-07 |
| EP0073787B1 (en) | 1986-08-13 |
| EP0073787A1 (en) | 1983-03-16 |
| WO1982003112A1 (en) | 1982-09-16 |
| NO150372C (en) | 1984-10-03 |
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| MK1K | Patent expired |
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| MM1K | Lapsed by not paying the annual fees |
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