KR20000069428A - Process and apparatus for the partitioning and thermal treatment of heterogeneous feedstock - Google Patents

Abstract

The present invention relates to a novel method and apparatus for thermally dividing heterogeneous feedstock (11) for the production of metal products, glass ceramic products and gas products. This method is regulated by the Environmental Protection Agency and in some cases has the ability to thermally treat hazardous wastes (mixed wastes regulated by the Ministry of Energy), which also contain radioactive isotopes, and to survive stably long as a result of heat treatment. Involves the production of products. More particularly, the present invention relates to a novel method and apparatus, which has very heterogeneous properties in physical form, flammability, chemical content, and particle size, and which is hazardous components or radioisotopes. Inlet feed streams (9) contaminated to different concentrations of effluent were processed in a direct graphite electrode arc melter (4) equipped with an adjacent thermal oxidation reactor (5) to produce metal products, glass ceramic products such as basalt and fully burned waste gases. To produce. The apparatus described above includes a waste gas rapid quenching structure 17 for minimizing dioxin formation and for ease of purification of the waste gas stream.

Description

PROCESS AND APPARATUS FOR THE PARTITIONING AND THERMAL TREATMENT OF HETEROGENEOUS FEEDSTOCK}

This method is regulated by the Environmental Protection Agency and in some cases has the ability to thermally treat hazardous wastes (mixed wastes regulated by the Ministry of Energy), which also contain radioactive isotopes, and to survive stably long as a result of heat treatment. Involves the production of products. More particularly, the present invention relates to a novel method and apparatus, which has very heterogeneous properties in physical form, flammability, chemical content, and particle size, and which is hazardous components or radioisotopes. Influent feed streams contaminated with different concentrations of are processed in direct current or alternating graphite electrode arc melters with adjacent thermal oxidation reactors to produce metal products, glass ceramic products such as basalt and fully burned waste gases. The device described above includes a waste gas quick dissipation structure for minimizing dioxin formation and for ease of purification of the waste gas stream.

Joule heated melters have been commonly used for the production of glass based products. Graphite electrodes have been commonly used to refine ore to metal and to produce products that add value from a controlled, well-defined inlet feed stream. Arc melters have also been used to produce mineral wool products that add value from well-characterized and controlled inlet feedstock. Plasma arc torch melters have been commonly used to produce valuable metals of great value such as titanium. The various types of metals commonly used in industry are low temperature (900 ° C.-1,200 ° C.), medium temperature (1,200 ° C.-1,500 ° C.) and high temperature (1,500 ° C.), with their use being limited by the desired product and required method. ° C-2,000 ° C). Joule heating melters commonly used for the production of glass (including borosilicate glass for high levels of radioactive waste) fall in the low temperature range. Medium temperature melters are required for the production of high temperature glass such as aluminosilicate glass and glass ceramics.

Hot melters are necessary for refining ores with metals, such as refining ionic iron ores with iron, and for producing glass ceramic products such as basalt with low viscosity without solvents. Arc melters use the heat generated when an electric arc passes through a gas. This gas is ionized to form a very high hot plasma. This plasma temperature can exceed thousands of degrees Celsius. This high temperature allows for rapid and severe heating of the processing material, making it technically ideal for hot metal processing.

Current research and development by governments and industries has been pursued to apply arc melter technology to the treatment of hazardous and / or radioactive waste. The application of melter technology and equipment conventional to the safe and effective and economical disposal of radioactive waste and the risks of heterogeneity can extend the permissible properties of the incoming feed stream, the flexibility of the treatment operation, and the discharge products and wastes. Includes refinement of specifications for gases.

There have been a number of test or development programs that apply electric arc melter technology to treat radioactive waste, mixed waste, municipal waste and hazardous waste. In the arc melter, the waste material is heated to (a) volatilize and destroy the organisms, and (b) melt the inorganic material onto molten slag or metal. By controlling and mixing the reaction stoichiometry, this process can be used to chemically oxidize or decompose the waste components, or can be used to react the waste components to form new products.

A waste treatment furnace is disclosed in US Pat. No. 4,421,037 by Rime.

U.S. Patent 5,052,312 to Lackley et al. Discloses a cyclone furnace for incineration and re-vitrification of hazardous wastes.

U.S. Patent 5,541,386 to Albi et al discloses plasma arc decomposition of hazardous wastes into vitrified solids and non-hazardous gases.

The present invention relates to the production of metal products, glass ceramic products and gas products and to heat treatment of heterogeneous feedstocks.

1 is a schematic flowchart of a method embodied by the present invention,

2 is a representation of a system apparatus for the production of metal products, glass ceramic products, and gas products according to the present invention and for thermal treatment of heterogeneous feedstocks;

3 is a representative view of a preferred main heating source feeder according to the present invention, and

4 is a representation of a system arrangement for the production of metal products, glass ceramic products and gas products for thermal or hazardous waste and thermal treatment of heterogeneous feedstocks according to the present invention.

The process and apparatus described above allow the continuous or intermittent supply of very heterogeneous inlet waste streams to inactivate thermal splitting of the inlet feed into uncertainty and volatile fractionation onto a glass ceramic (slag) made of oxidized metal and low vapor pressure material. The melting and oxidation or reduction of the fraction, the melting and reduction of the inert fractional metal onto the metal, and the complete combustion and oxidation of the vapor phase. In addition, the flexibility of this operation and process allows for the control of volatilization of the high vapor pressure materials and forcibly divides them into glass ceramics.

This process and apparatus provides for rapid cooling of waste gases above 2,000 ° F and below 150 ° F and removal of metal and glass ceramic phases by high temperature tapping techniques in a minimum cycle. In addition, this process provides controlled cooling of the glass ceramic product through product casting technology and controlled cooling through adiabatic or heating additions to control the crystallized phase structure of the final cooled product.

Wastes of the type applicable to the treatment in the above-described invention include wastes having a wide variety of components by soil content, metal content, flammable content, organic matter content and hazardous contaminants.

The glass ceramic products produced exceed current conditions for toxic character leach treatment (TCLP), as disclosed in the Federal Register on March 29, 1989, to meet more narrowly defined product specifications suitable for calibration. This specification may include narrowly defined composition ranges and physical properties.

This metal product is also suitable for calibration such as industrial scrap from non-radioactive feeds and renewable metals in the nuclear industry from feedstocks of radioactive contaminants.

The waste gas cools rapidly from the temperature required for complete combustion and oxidation in a minimum time to below the accepted temperature, such as the formation temperatures for dioxins and furans, thereby minimizing the production of dioxins. Exhaust gas purification also enables the splitting of waste gas particles to volatilize metal fractions and salts.

The homogeneous or heterogeneous feedstock may be sculpted into the particle size of the feed material 1 submicron to less than half the diameter of the melter, the feed material fed horizontally into the melter chamber 4, the feedstock molten metal Splitting into slag and waste gas phase, oxidizing the waste gas for at least two seconds at a temperature of 2,000 ° F. or more in the thermal oxidizer 5, thermal oxidation in the waste gas rapid quenching chamber 17 at a minimum time. The waste gas flow from the machine is thermally treated to form a molten bed and gas phase in a split arc melter by quenching to a temperature below 150 ° F., purifying waste gas, and removing the final molten product. .

The nominal feedstock (11) properties are heterogeneous and the alternative chemical composition of the matrix material feedstock is 0-100% soil, 0-35% metals, 0-90% flammables and 0-60% volatile organics. , 0-60% chlorinated organics, 0-20% chlorine, 0-40% carbon, 0-20% nitrate, and 0-100% hydroxide.

Feedstock 11 may include metals and compounds of organic and inorganic matter that are classified as dangerous and toxic according to US Environmental Protection Agency classification. This feedstock 11 may comprise radioactive isotopes that emit alpha, beta, or gamma radiation.

The feedstock 11 is extruded or conveyed through the sidewalls of the metal 4 and the surfaces of the molten layers 14, 15 are controlled to a controlled depth of the cold cap 13 to divide the volatile material onto the molten glass ceramic. To improve. A portion of the melter chamber is operated with the cooled outer wall to freeze the layer of molten product on the inner wall for safe long term operation of the melter.

The arc melter electrode 21 tip is raised in association with the elevation of the surface of the melt layers 14, 15 at a portion of the melter chamber having a ratio of nominal depth to diameter less than half, and the chamber 4 itself It can be easily removed as in batch operation without any tapping possibilities.

Oxygen is injected into or near the surface of the molten bed 14, 15 to control the redox reactants in and above the molten bed 14, 15 to generate syngas for treatment feedstock and fuel gas waste heat generation. do.

Auxiliary heating source 16 is injected into the base of thermal oxidizer 5 to maintain the temperature. The gas phase redox reaction is controlled and controlled to generate syngas for process feedstock and fuel gas for waste heat generation. Oxygen enriched air is injected into the base of the thermal oxidizer 5 to maintain the temperature, providing oxygen for the oxidation reactants and for the generation of syngas for the treatment feedstock and fuel gas waste heat generation.

Air pollution control system maintenance materials such as purified particles, volatile metals, salts and filters can be introduced back into the feed material 1 and processed again through this system.

The molten product tapping and casting system is operated in such a way as to control the cooling rate of the cast molten glass ceramic by mold insulation or addition of heat to control the amorphous / crystalline phase structure of the final product.

Liquid may be absorbed into the feedstock 11 or injected onto the top of the cold cap 13 or on the surfaces of the molten layers 14, 15.

The heat splitting arc melter device according to the present invention has a plurality of side outlets having molten layers 14, 15 having a nominal depth to diameter ratio of 1/4 to 1/2 and tapping molten metal and slag ( A fire resistant single row melter chamber 4 with 19, 20; The refractory single row melter further comprising an electrode port 10 at 30 ° ± 10 ° from the vertical line, a supply port 9 at 90 ° from the vertical line and a central waste gas port vertically over the melter chamber. chamber; An electrically heated source comprising a parallel axis moving graphite electrode 21 current and supply delivery system operating in submerged or short arc joule heating resistance mode or long arc radiant heat mode; Equipped with an auxiliary heating source 16 located at the bottom of the thermal oxidizer to maintain an operating temperature of 1,800 ° F. to 2,200 ° F., positioned vertically above the melter chamber, sufficient to provide a gas residence time of more than 2 seconds. Large adjacent thermal oxidation reactor 5; A waste gas cooling chamber 17 coupled directly to the top of an adjacent thermal oxidizer extending downward from 45 to 60 degrees from horizontal; And an air pollution control system 6.

The two graphite electrodes 21 have nominal electrode tips spaced half the nominal working diameter of the molten layers 14, 15. This graphite electrode 21 has a moving mechanism capable of positioning the electrode tip in the x, y and z directions 12.

This heating source comprises two parallel graphite electrode 21 current and voltage supply systems; Alternating single-phase graphite electrode 21 current and voltage supply system with electrodes in multiples; Or an alternating three-phase graphite electrode 21 with electrodes in multiples of three times a direct current source further comprised of a current and voltage supply system.

The apparatus may further comprise a wet-dry waste gas control system 6 for collecting particles, volatile metals and salts in the water stream of dissolved and suspended sludge material and a gas filtration system for final filtration of the gas stream. have.

This apparatus is a dry-wet waste gas for partitioning particles and volatile metals for dry renewable or treatable secondary flows and for splitting salts from acid gas scrubbers for water flow of dissolved and costly suspended sludge material. It may further comprise a cleaning system 6 and a gas filtration system for the final filtration of the gas stream.

Reference will now be made to the accompanying drawings, wherein like reference numerals designate like elements throughout the several views.

The invention and various embodiments of the invention will be described in detail in the following description.

The present invention is capable of treating a wide variety of municipal waste, hazardous waste, radioactive waste and mixed (mixed into radioactive and hazardous waste) waste. Tests performed on the design of the present invention in this patent application can be processed in the range of feedstock shown in Table 1. The chemical structures of the various of these and similar components are shown in Tables 2, 3, and 4.

Acceptable Limits on Influent Feedstock Changes Feedstock ingredients weight% soil 0-100 metal 0-35 combustibles 0-90 Volatile Organics 0-60 Chlorinated Organics 0-60 Goat 0-20 carbon 0-40 nitrate 0-20 hydroxide 0-100

The present invention comprises the steps of (a) evaporating moisture, pyrolysing carbonates, and pyrolysing organics to reduce volume and solids mass, (b) destroying hazardous and non-hazardous organics, (c) mineral oxides Melt to homogenize to easily characterize and treat / regenerate slag (in the form of a glass-ceramic locked waste), (d) separate the metal into a molten tappable metal phase, and (if present) a radionuclide The waste may be treated by removing the metal phase from the. The products formed by this method are so homogeneous that they are easily characterized compared to the various heterogeneous materials that can be supplied to the melter. The melter chamber 4 can accommodate waste that varies widely in physical and chemical melters. This slag composition is inherently less variable due to the smaller variability (a) of the inorganic material of many waste materials and due to the mixing action (b) that changes the inorganic feed in the molten slag layer. Often, depending on the feed composition, the desired operating state, and the slag or metal product, the additive is used to modify the glass ceramic lock type waste form or metal product.

An exemplary overview of the method embodied by the present invention is shown in FIG. 1. The particle size of the feed material 1 ranges from submicron to half the diameter of the melter. The feed material and the container of feed material are fed through the shredder hopper 8 and reduced in size in the waste treatment and feed system using the low speed high torque shredder 2. Shredders of this type which are commercially available and may be included as components of the present invention are suitable for the majority of types of waste including heterogeneous combustibles, inorganics including bricks and concrete, and metals up to 1/4 inch thick. Can be processed. The shredder 2 may break the contents of waste containers and / or entire waste drums, boxes and other containers.

This waste is conveyed into a hopper which also serves as a feed hopper for a conventional feeder 3. This feeder 3 can reliably push or transport the broken feed material (feedstock) through the feed port on the side wall of the melter chamber 4.

The closed coupled thermal oxidizer 5 effectively oxidizes organic matter that has been transformed into a gaseous biological cycle developed from the molten feed material. Waste gases with volatilized particles that are turned into biological cycles are purified and treated in the waste gas treatment system 6 to control emissions. The spilled product 7, which may comprise a metal form and a glass ceramic form, is removed and treated as an added value product.

The present invention can treat waste liquids, sludges, slurries or gases. Liquids, sludges and slurries can be fed into the melter through injectors or nozzles to be absorbed into the dry adsorbent or transferred to small complete containers. The present invention can also process feedstock 11 containing radioisotopes that emit alpha, beta or gamma radiation.

The present invention can meet or exceed the requirements of processing the best demonstrated available technology, as best determined by the Resource Conservation and Recovery Act, for any organic contaminant, and is subject to regulatory limitations. It is therefore possible to produce highly ceramic-resistant, glass-ceramic lock-type waste forms or products with added value that can fix radioactivity and oxides of toxic metals.

More detailed examples of the method and apparatus of the present invention are shown in FIGS. 2, 3 and 4. Methods occurring in the melter chamber 4 include rapid heat transfer, chemical reactions, and physical transformation of solids to liquids and gases. The feedstock 11 entering the melter chamber 4 is (a) due to radiant heat transfer from the arc and molten bed, (b) due to conduction and transfer of heat transfer and mixing in the melt bed, and (c) fusion It is heated by the heat of resistance (joint heat) in the liquid and absorbed into the melt through the cold cap 13. When the feedstock is heated, (a) the water and water of hydration evaporate, and (b) the organics, nitrates, carbonates, sulfates and other materials are thermally decayed and decomposed to oxidize to form soluble main gases and oxides in the melt. (C) the inorganic material is melted into the molten slag 14 and (d) the metal in the feedstock 11 is oxidized when there is sufficient oxygen available from the solid or gaseous oxidant to bond with the slag 14. Or melt due to greater metal density to settle through this slag to form metal layer 15.

Some elements, such as plutonium, are highly oxidizable but are very nonvolatile and tend to aggregate in the molten slag 14, leaving waste gases and metal products with reduced contaminants as desired. Volatile species such as chlorides, sulfates and some metals (such as mercury, lead, cadmium and arsenic) volatilize partially or even more completely. This allows the aggregation of these species in the waste gas for purification if desired, or the operating conditions of the present invention create a continuously consumable filter (cold cap) 13 to allow volatile material in the melt for increased chemical reactions. By increasing the residence time of the mixture to make it into slag, it can be adjusted to more effectively retain some of these species in the melt. The surface of these molten layers 14, 15 is adjusted to the controlled depth of the cold cap 13 to improve the splitting of the volatile material onto the molten glass ceramic phase. The liquid may be absorbed into the feedstock 11 or injected onto the top or molten layer surface of the cold cap 13.

The melter chamber 4 is operated with the cooled outer wall / bottom to freeze the layer of molten product on the sidewall / bottom for safe long time operation of the melter. This refractory linear melter chamber 4 consists of an electrode port 10 at 30 degrees ± 10 degrees from a vertical line, a supply port at 90 degrees from a vertical line, and a central waste gas port vertically above the melter chamber. In the present invention, oxygen is injected for control of the redox reaction in the molten layer and on the molten layer through the oxygen port 22 into the molten layer or through the oxygen port 25 near the surface of the molten layer.

Adjacent thermal oxidizers 5 large enough to provide a gas residence time of at least two seconds are located vertically above the melter chamber 4. In the present invention, auxiliary heat source 16 is injected into the base of thermal oxidizer 5 to maintain an operating temperature of 1,800 ° F to 2,200 ° F. Oxygen enriched air is also introduced into the base of the thermal oxidizer (5) through the oxygen port (27) to assist in maintaining the desired temperature and for the synthesis of regeneration of fuel gas and fuel gas waste heat generation for oxidation reactions and for processing feedstocks. To provide additional oxygen. Other operating conditions can be varied to optimize or reduce the amount of metal 15 product or to change the slag 14 chemistry.

The present invention includes a tapping and casting system that can be operated in such a way as to control the cooling rate of the cast molten glass ceramic by mold insulation or heat addition to control the amorphous / crystalline phase structure of the final cooled product. do. The invention comprises a refractory linear melter chamber 4 having melt layers 14, 15 having a nominal depth to diameter ratio in the range of 1/4 to 1/2 and tapping molten metal and slag. Side outlets for the same. The slag port 19 is located at a certain depth from the desired melt surface equal to half the melt radius and the metal port 20 is located at the bottom of the melt zone to allow intermittent or continuous tapping of both materials. Alternatively, the portion of the melter chamber 4 containing the molten product can be easily removable as in batch operation without any tapping potential or necessity.

Waste gas with concentrated and volatilized particles is purified and treated in the waste gas treatment system 6 to effectively control the emissions of organics, particles, acid gases, toxic metals or other undesirable emissions. In the present invention, air pollution control system maintenance materials such as purified particles, volatile metals, salts and filters can be introduced back into feed material 1 and processed again through this system. The unique closed coupled thermal oxidizer 5 is designed to effectively oxidize the gaseous and biological cycle modified organic material developed from the molten feed material. This thermal oxidizer 5 is a gas containing a large amount of particles whose biological cycle has changed without compromising the troubled particle slagging or entanglement by forcibly coupling the thermal oxidizer 5 perpendicular to the melter chamber 4. It is specially designed to carry out oxidation. This ability is very important for the disposal of hazardous and radioactive waste when access to the maintenance personnel is restricted or obstructed. The unique arrangement of the waste gas quenching chamber 17 relative to the thermal oxidizer 5 allows for a near instantaneous reduction of gas temperatures from 2000 ° F. to 150 ° F. in a minimal space. The waste gas quenching chamber 17 is directly coupled to the top of the adjacent thermal oxidizer 5 extending downwards from 45 degrees to 60 degrees from the horizontal line. The quenching chamber 17 structure for the thermal oxidizer 5 reduces the potential for waste gas duct blockage that is common in horizontal cross duct arrangements and is very short in the dioxin formation / composition temperature range (about 450 ° F-750 ° F). The gas residence time also minimizes the potential for dioxin formation.

An alternative option included in the present invention is to produce synthesis gas or low Btu fuel gas from the melter waste gas. The redox reactants in this gas phase are controlled and controlled to maximize the generation of syngas for the process feedstock or fuel gas for waste heat generation. In this selection, the thermal oxidizer 5 can be replaced with a reaction chamber 5 which allows the addition of steam or other reactants to react with the melter waste gas to form hydrogen, carbon monoxide, methane gas or other gas. . Particles in the waste gas are filtered upstream or downstream of the reaction chamber 5. Thus, oxygen is injected into or near the surface of the molten bed to control the redox reaction in or on the molten bed for generation of syngas for the process feedstock and for fuel gas waste heat generation.

The present invention comprises the steps of (a) removing wet particles and acid gases and reheating and removing trace organics, trace toxic materials and trace submicron particles, or (b) removing dry particles in a baghouse or hot filter. A waste gas treatment system 6 with particle and acid gas removal options comprising removing the wet acid gas, reheating the gas and removing trace organics, trace toxic materials and trace submicron particles. Have Heat recovery through gas to air heat exchange, water heating, or steam generation is an additional option.

The wet-dry waste gas treatment system 6 is specially designed for radioactive waste applications, making it very reliable and compact. A single second waste stream consisting of scrubber liquid discharges is produced with a very small amount of renewable, spent HEPA filters, and spent charcoal absorbers or other trace organic and metal absorbers. This scrubber liquid contains any absorbed chlorides, sulfated and decomposed salts of fluorides, other dissolved species absorbed from waste gases such as acid gases, nitric acid and carbonic acid, and suspended carbonated undissolved particulate solids.

The dry-wet waste gas treatment system 6 is designed to enable automatic separation of the dry granular second waste stream separately from the wet scrubber aqueous effluent. It is stabilized in a process in which the particles can be used as (a) a product with added value as feedstock for metal regeneration operations, (b) recycled to the melter, or (c) easily disallowing chloride or other scrubber species. It is desirable if possible. Filtering the particles separately from the acid gas scrubbing somehow reduces the amount of chloride that is undesirable in the emission particle treatment or regeneration.

Other waste gas treatment systems 6 that may also be included on a regular or other need basis include dry or semi-dry scrubbing operations for acid gas control followed by dry particle filtration.

The present invention uses a direct current electric-based heat source consisting of two axial movements (as arrow 18) graphite electrodes 21 penetrated at an angle to the axis of the melter chamber 4. Two alternatives to the current and voltage transfer system are two multiples of alternating single phase graphite electrodes 21 and three multiples of alternating three phase graphite electrodes 21. This graphite electrode 21 is located with a nominal tip space half the diameter of the molten bed and can be operated in a submerged short arc joule heating mode or a long arc radiant heat mode. The graphite electrode 21 is equipped with a moving mechanism capable of positioning the electrode tip in the x, y, and z directions 12. The graphite electrode 21 can be separately adjusted in consideration of the variable melting surface level or the electrode consumption rate. The arc melt electrode tip can be raised in conjunction with the elevation of the surface of the melt layer in a portion of the melter chamber having a ratio less than half the nominal depth to diameter so that the chamber itself is as easy as in a batch operation without any tapping potential. It is possible to remove.

The present invention is advantageous in the industrial heat splitting of heterogeneous feedstocks. The method and apparatus of the present invention also extend to the treatment of industrial hazardous waste, medical waste and radioactive (mixed) waste. The invention also extends to the thermal treatment of municipal solid waste or sludge.

The outflow product 7 (FIG. 1) has a metal form suitable for regeneration, a high filtration resistance inherently stable glass ceramic form, a complete combustion waste gas form suitable for final cleaning, or a fuel rich gas suitable for processing feedstock or waste heat generation. Form. An additional advantage from the production of solid products is a significant volume reduction compared to the incoming feedstock.

Referring to FIG. 4, additional isolation gates 24 and air locks 23 are added to the shredder hopper 8 to ensure complete protection when radioactive or hazardous materials are processed.

It will be apparent from the above description that the present invention provides a design for a method and apparatus for the positioning and heat treatment of heterogeneous feedstocks. Various changes may be made in the above embodiments and working methods without departing from the spirit and scope of the following claims. All materials shown in the accompanying drawings or included in the above description have been described by way of example and not by way of limitation.

Changes or modifications to the design and structure of the invention within the scope of the appended claims may be made by those skilled in the art upon reviewing the disclosure herein. Such changes or modifications are intended to be included within the scope of the claims for patent protection disclosure of the invention, provided that they are within the spirit of the invention.

Claims (23)

A method in which a homogeneous or heterogeneous feedstock is thermally treated to form a gas phase with a molten bed in a split arc melter, a. (2) slicing the feed material 1 to a particle size of less than micron to less than half the diameter of the melter, b. Feeding the feedstock horizontally into the melter chamber 4, c. Dividing the feedstock into molten metal, slag and waste gas phase, d. Oxidizing the waste gas for at least 2 seconds at a temperature of at least 2,000 ° F. in the thermal oxidizer 5, e. Quenching waste gas flow from the thermal oxidizer in the waste gas rapid quenching chamber 17 at a minimum time to a temperature of 150 ° F. or less, f. Purifying the waste gas, and g. Removing the final molten product. The method of claim 1, wherein the nominal feedstock 11 properties are heterogeneous and the alternative chemical composition of the matrix material feedstock is 0-100% soil, 0-35% metals, 0-90% flammables, 0 Varying between -60% volatile organics, 0-60% chlorinated organics, 0-20% chlorine, 0-40% carbon, 0-20% nitrate, and 0-100% hydroxide How to. 2. The method of claim 1, wherein the feedstock (11) comprises metals and compounds of organics and inorganics classified as dangerous or toxic according to US Environmental Protection Agency classification. 2. The method of claim 1, wherein the feedstock (11) comprises radioactive isotopes that emit alpha, beta, or gamma radiation. 2. Method according to claim 1, characterized in that the feedstock (11) is extruded or conveyed through the side walls of the melter (4). Method according to claim 1, characterized in that the surface of the molten layer (14, 15) is controlled to a controlled depth of the cold cap (13) to improve the splitting of the volatile material onto the molten glass ceramic. The method of claim 1, wherein a portion of the melter chamber is operated with the cooled outer wall to freeze the layer of molten product on the inner wall for safe long term operation of the melter. 2. The arc melter electrode 21 tip is raised in association with the elevation of the surface of the melt layers 14, 15 in a portion of the melter chamber having a ratio of nominal depth to less than half the diameter, and Characterized in that the chamber (4) itself can be easily removable as in batch operation without any tapping possibilities. 2. The method of claim 1, wherein oxygen controls the redox reactants in and above the molten beds (14, 15) to generate syngas for treatment feedstock and fuel gas waste heat generation. Injection into or near the surface. 2. A method according to claim 1, characterized in that an auxiliary heating source (16) is injected into the base of the thermal oxidizer (5) to maintain the temperature. 2. Oxygen enriched air is injected into the base of the thermal oxidizer 5 to maintain the temperature, thereby providing oxygen for the oxidation reaction and for the generation of syngas for treatment feedstock and fuel gas waste heat generation. Characterized in that. 2. Method according to claim 1, characterized in that air pollution control system maintenance materials such as purified particles, volatile metals, salts and filters can be introduced back into the feed material (1) and processed again through the system. The method of claim 1, wherein the redox reaction in the gas phase can be controlled and controlled to generate fuel gas for waste heat generation and syngas for processing feedstock. The molten product tapping and casting system of claim 1, wherein the molten product tapping and casting system is operated in a manner to control the cooling rate of the cast molten glass ceramic by thermal mold insulation or addition to control the amorphous / crystalline phase structure of the final product. How to feature. 2. Method according to claim 1, characterized in that the liquid can be absorbed into the feedstock (11) or injected onto the top of the cold cap (13) or on the surface of the molten layer (14, 15). For heat split arc melters, a. Fire resistant single row melter with molten layers 14 and 15 having a nominal depth to diameter ratio of 1/4 to 1/2 and a number of side outlets 19 and 20 tapping molten metal and slag Chamber 4; b. The refractory single row melter further comprising an electrode port 10 at 30 ° ± 10 ° from the vertical line, a supply port 9 at 90 ° from the vertical line and a central waste gas port vertically over the melter chamber. chamber; c. An electrically heated source comprising a parallel axis moving graphite electrode 21 current and voltage supply system operating in a submerged or short arc row heat resistance mode or a long arc radiation heat mode; d. To maintain an operating temperature of 1,800 ° F to 2,200 ° F, it is equipped with an auxiliary heating source 16 located at the bottom of the thermal oxidizer and positioned vertically above the melter chamber to provide a gas residence time of more than 2 seconds. Sufficiently large adjacent thermal oxidation reactor 5; e. A waste gas quenching chamber 17 coupled directly to the top of an adjacent thermal oxidizer extending downward from 45 to 60 degrees from horizontal; And f. Apparatus characterized in that it comprises an air pollution control system (6). 17. The apparatus according to claim 16, wherein the two graphite electrodes (21) have nominal electrode tips spaced half the nominal working diameter of the molten layer (14, 15). 18. The apparatus according to claim 17, wherein the graphite electrode (21) has a moving mechanism capable of positioning the electrode tip in the x, y and z directions (12). 17. The apparatus as claimed in claim 16, wherein the heating source further comprises a graphite electrode (21) current and voltage supply system moving on two parallel axes. 17. The apparatus according to claim 16, wherein the heating source is an alternating single-phase graphite electrode (21) current and voltage supply system having electrodes in multiples of two. 17. The apparatus according to claim 16, wherein the heating source is an alternating three-phase graphite electrode (21) current and voltage supply system having electrodes in multiples of three times. 17. The system according to claim 16, further comprising a wet-dry waste gas control system 6 for collecting particles, volatile metals and salts in the water stream of dissolved and suspended sludge material and a gas filtration system for final filtration of the gas stream. Apparatus comprising a. 17. The method according to claim 16, wherein the drying for partitioning the salts from the acid gas scrubber for the splitting of particles and volatile metals and for the flow of dissolved and undissolved suspended sludge material for dry renewable or treatable secondary streams. Further comprising a wet waste gas purification system (6) and a gas filtration system for final filtration of the gas stream.