WO2023109034A1 - Detoxification and recycling method for gasification and high-temperature melting of full-industrial organic hazardous waste - Google Patents

Abstract

Provided are a detoxification and recycling method for gasification and high-temperature melting of full-industrial organic hazardous waste, comprising: multiphase pretreatment, multi-element regulation and control, and multi-component homogenization are performed on the full-industrial organic hazardous waste for furnace-entering raw material configuration, and flowing type raw materials subjected to precise compatibility and meeting related requirements undergo gasification and high-temperature melting reactions in a furnace, and then are subjected to chilling; generated gas is subjected to desulfurization, decarburization and purification to obtain carbon dioxide and high-purity hydrogen products, and glassy byproducts after chilling can be used as general solid waste after being subjected to hazardous waste identification; after sedimentation and filter pressing of chilled water, ash forms a filter cake, wastewater is recycled, and inorganic salt and nitrogen and phosphorus resources in the wastewater are extracted. Main elements in the furnace-entering raw materials are accurately regulated and controlled, gasification and high-temperature melting serve as reaction conditions, and element migration and transformation rules serve as a basis, thereby realizing detoxification and recycling of industrial organic hazardous waste, and near-zero emission of pollutants. The method is a low-carbon green and clean technical method.

Description

Harmless and resourceful method of gasification and high-temperature melting of industrial organic hazardous waste technical field

The invention belongs to the field of resource utilization of solid waste, and in particular relates to a harmless and resourceful method for the gasification and high-temperature melting of industrial organic hazardous waste.

Background technique

Industrial organic hazardous waste refers to solid or liquid organic articles and substances that have lost their original use value or have not lost their use value but are discarded or abandoned in industrial production, and have one or more hazardous characteristics. Due to the complex and diverse components of industrial organic hazardous waste, and its characteristics of being dangerous, toxic and harmful, the ways and scope of its resource utilization are limited.

In the prior art, incineration methods such as rotary kilns are used to dispose of industrial organic hazardous wastes, but only the heat energy is recovered, and secondary pollutants such as nitrogen oxides and dioxins are inevitably produced. In the existing technology, coal-water slurry gasification is used to co-process industrial organic hazardous waste technology, which requires additional fossil energy as a heat supplement. As a synergistic technology, the main purpose is to convert syngas. The quantity is limited, and at the same time, there are high restrictions on the indicators of incoming raw materials. The difficulty of the disposal or utilization technology of organic hazardous waste is to completely eliminate its toxicity and harmfulness, effectively realize the immobilization, stabilization and harmlessness of heavy metals, and at the same time minimize the impact of non-metallic elements on its treatment efficiency, and finally realize Resource utilization of main elements.

Contents of the invention

In order to solve the problems in the prior art, the present invention provides a harmless and resourceful method for the gasification and high-temperature melting of industrial organic hazardous waste, and uses organic solid waste to replace fossil raw materials such as coal to realize the recovery of industrial organic solid waste. resourceful.

The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes of the present invention comprises the following steps:

1) According to the phase state, carry out compatibility pretreatment on various industrial organic hazardous wastes;

2) Analyzing and measuring the physical and chemical properties of various industrial organic hazardous wastes after compatibility pretreatment, the physical and chemical properties include main element content, pH value, calorific value, viscosity, ash melting point, ash content, etc.;

3) Configure the raw materials for the industrial organic hazardous waste after the physical and chemical properties are determined. After the configuration is completed, the physical and chemical properties of the raw materials for the furnace should meet: the total calorific value is 15kJ/g-25kJ/g, and the ash melting point of the raw material is 800°C ~1200°C, raw material viscosity should be less than 800mPa·s, raw material moisture content 10%-30%, raw material total chlorine content should be less than 10%, organic chlorine content should be less than 6%, raw material total sulfur content should be less than 8%, raw material content The total fluorine content should be less than 6%;

4) Multi-element control is carried out for industrial organic hazardous waste. After the configuration is completed, the ash element composition of the raw material into the furnace should meet: silicon content of 5%-50%, phosphorus content of 1%-10%, aluminum content of 5%-15% %, iron content is 1%-5%, sodium content is 10%-40%, calcium content is 5%-50%;

5) The raw materials that have been precisely regulated and configured enter the gasifier for gasification and high-temperature melting. The raw materials that enter the gasifier are all industrial organic hazardous waste and are not mixed with fossil energy; the high-temperature gas after the reaction and the molten inorganic The substance quickly enters the chilling chamber for chilling to realize the cooling of high-temperature gas and the solidification of molten inorganic substances; in this process, chilling wastewater will be generated, and most of the inorganic salts will be dissolved in the wastewater;

6) The cooled gas is separated, washed, transformed, and desulfurized to form a gas mainly composed of hydrogen and carbon dioxide. The gas is decarburized to form carbon dioxide and high-purity hydrogen products, and the hydrogen sulfide gas obtained after desulfurization is further converted into sulfur By-products;

7) The molten inorganic matter will produce glassy by-products after quenching. Since the main element components are regulated during the configuration of the raw materials into the furnace, the toxicity of the glassy by-products can meet the requirements of water leaching and acid leaching. The relevant standards can be used as general solid waste;

8) The chilled wastewater contains a large amount of inorganic salts and fine particles. The chilled water settles in the settling tank for solid-liquid separation, and the solids in the lower layer enter the plate and frame filter press for pressure filtration to form carbon black filter cake, whose toxicity meets water leaching Relevant standards related to acid leaching can be used as general solid waste, or further returned to the gasifier for raw material compatibility;

9) Collect the supernatant of the sedimentation tank and the supernatant after pressure filtration, and use the ammonium magnesium phosphate treatment process to extract the nitrogen and phosphorus resources. The formed struvite can be used as raw materials for the production of compound fertilizers. Cold water recycling, if the dissolved inorganic salt content in the circulating wastewater is greater than 10%, it needs to enter the evaporation device for evaporation and crystallization for desalination, the obtained inorganic salt is mainly sodium chloride after separation, and can be used as Used for dyeing and printing.

As a preferred version of the present invention, described step 1) is specifically:

The non-viscous solid organic hazardous waste is crushed and ground, and the solid particle size after treatment is controlled at 100-600 mesh; the viscous solid organic hazardous waste is first mechanically stripped from the package and the solid, and the package is cleaned to meet the standard Finally, it is used as general solid waste. The stripped solids are first shredded mechanically, and then heated and stirred in a closed container under the action of organic wastewater or solvents to form materials;

The liquid organic hazardous waste is firstly stratified in the storage tank, and then reacts to remove its reactivity and corrosiveness. After standing and stratifying, it is transported to different liquid storage tanks through mass flow meters according to the different density ranges of the liquid. ;

The semi-solid and semi-liquid organic hazardous waste is put into static stratification first, and the stratified upper liquid is extracted to the liquid organic hazardous waste storage tank, and treated according to the liquid organic hazardous waste treatment method; the lower solid is treated as viscous solid organic waste. Hazardous waste disposal methods.

As a preferred solution of the present invention, after the liquid organic hazardous waste is placed in the storage tank and stratified, according to the properties of each layer of liquid organic hazardous waste, the reaction is first performed to remove the reactivity; According to the nature of the liquid organic waste, pump the third liquid organic hazardous waste for reaction, and adjust the pH value of the liquid to promote the removal of chemical reaction characteristics and corrosiveness according to the change in the reaction.

As a preferred version of the present invention, the gasification and high-temperature melting reaction temperature of step 5) is 1000°C to 1500°C, the pressure of the gasifier is 0.5Mpa to 8Mpa, and the volume ratio of oxygen to the raw material input to the gasifier is 300:1 to 300:1. 500:1, part of the nozzle area inside the gasifier is in an oxidized state, and the outer area of the gasifier nozzle is in a reduced state.

As a preferred solution of the present invention, in step 7), if the glassy by-product is found to have hazardous waste characteristics, it will be treated as hazardous waste, and returned to step 1) for pretreatment according to the phase state, and then used for gasification The configuration of raw materials into the furnace.

As a preferred version of the present invention, if the carbon black filter cake obtained in step 8) is found to have hazardous waste characteristics, it will be used as hazardous waste, and returned to step 1) for pretreatment according to the phase state, and then used for gasification into Furnace raw material configuration.

As a preferred solution of the present invention, the step 9) utilizes the waste water produced, uses the nitrogen and phosphorus in the waste water for the preparation of ammonium magnesium phosphate, and carries out fractional crystallization and purification of inorganic salts such as sodium chloride and potassium chloride in the waste water, Realize the resource utilization of nitrogen, phosphorus, chlorine, sodium, potassium and other elements.

The beneficial effects of the present invention are:

Industrial organic hazardous waste contains relatively rich inorganic elements, such as calcium, silicon, aluminum, potassium, sodium, iron, chlorine, sulfur, phosphorus and other elements, in addition to the high content of organic matter. The invention does not need to add any additives by performing multi-phase state pretreatment, multi-element control, and multi-component homogeneous raw material configuration on industrial organic hazardous waste, and forms an all-organic hazardous waste as the main body and meets the physical and chemical requirements. The nature of the flow of raw materials. During the configuration process of raw materials into the furnace, the physical and chemical properties of the raw materials and the elemental composition of the ash content of the raw materials must be satisfied at the same time.

The overall process realizes the directional transformation of main elements through the precise control of raw material configuration elements and the law of element migration and transformation. Organic substances are converted into carbon dioxide, high-purity hydrogen products and sulfur by-products through high-temperature gasification, and inorganic substances are converted into solid glass by-products after high-temperature melting to immobilize and stabilize heavy metals and remove leaching toxicity. Inorganic salts dissolved in water can be effectively recycled and utilized through magnesium ammonium phosphate process and desalination. Therefore, the overall process realizes the harmlessness of organic pollutants and heavy metals in toxic and harmful industrial organic hazardous wastes, and the recycling of major elements such as carbon, hydrogen, sulfur, nitrogen, phosphorus, chlorine, sodium, and potassium. The overall technological process has nearly zero discharge of pollutants, which is a low-carbon, green and clean technical method.

Compared with the coal-water slurry co-processing hazardous waste technology, the present invention has the following advantages: 1) The raw materials in the present invention are all configured with industrial organic hazardous waste, and the heat energy in the organic hazardous waste is fully utilized to meet its gasification calorific value requirements , does not use any fossil raw materials such as coal, oil, natural gas, etc. as energy; 2) Since the present invention uses all organic hazardous waste as a heat source and does not use other fossil energy substances, energy utilization is more environmentally friendly; 3) the present invention makes full use of industrial The organic hazardous waste is rich in inorganic elements, and the physical and chemical properties of the incoming raw materials and ash element composition are precisely regulated to form glassy by-products with high glassy content, and the solid by-product hazardous waste is realized from the source. The effective control of the characteristics makes the leaching toxicity meet the requirements, and finally realizes the immobilization, stabilization and harmlessness of heavy metals; 4) Since the ash content of organic waste is much lower than that of coal-water slurry co-processing technology, the glassy by-product Yields are low. If the chilled residue is identified as hazardous solid waste, compared with coal-water slurry synergistic technology, the output of secondary hazardous waste is greatly reduced; 5) the present invention uses all-organic hazardous waste as the raw material for the furnace, and the organic matter content is higher than that of water content in the coal slurry, so the yield of effective syngas is higher. 6) This technology gasifies organic hazardous waste under the condition of overall high-temperature reduction state, which can completely decompose organic matter into CO and H ₂ to eliminate its toxicity and harmfulness. It has also been completely reduced to a low-priced state, realizing the harmlessness and recycling of dangerous organic substances.

Compared with coal-water slurry co-processing organic hazardous waste technology, the organic hazardous waste used in the present invention includes but not limited to rectification residue, industrial organic waste, biological fermentation residue, organic resin waste, waste mineral oil, industrial sludge, Waste catalysts, high-concentration organic waste liquid (water), waste organic solvents, organic adsorption materials (such as activated carbon, organic resin, carbon fiber, etc.), extraction liquid, washing liquid, waste tires, waste printed circuit boards, waste etching liquid, etc. It mainly involves HW01~06, HW08~13, HW37~40, HW45, HW49, and HW50 in the National Hazardous Waste List (2021). This invention has greatly expanded the utilization range of raw materials, and is more extensive and efficient.

Description of drawings

Fig. 1 is a flow chart of the harmless and resourceful method of gasification and high-temperature melting of all industrial organic wastes of the present invention;

The glassy by-product XRD spectrum of Fig. 2 example 1;

The glassy by-product XRD spectrum of Fig. 3 example 2;

Fig. 4 is example 4 glassy state by-product mapping collection of graphs;

Fig. 5 is the water-quenched XRD pattern of the coal-water slurry of Comparative Example 1.

Detailed ways

Example 1

The existing industrial organic hazardous wastes such as lapping liquid, mineral slime and methanol organic solvent need to be disposed of. Mineral slime is an organic waste that is difficult to pulp, with low calorific value and high content of chlorine, so it is difficult to effectively dispose of it by incineration and coal-water slurry gasification.

Fine grinding liquid is semi-solid and semi-liquid organic waste, which contains more grinding debris and higher content of heavy metals. After the polishing liquid is left to stand, the upper liquid is treated as liquid organic waste, and the lower liquid is ground to 500-mesh particles by a rod mill. The mineral slime is ground into 500 mesh particles after being ground by a rod mill. The methanol organic solvent is put into storage tanks for standby after standing and stratifying. The methanol solvent has a high calorific value and can be effectively regulated.

The physical and chemical properties of each substance were analyzed and determined after treatment, and their physical and chemical properties are shown in the following table.

Table 1 Physicochemical properties of samples to be treated

sample	mineral mud	methanol organic solvent	Concentrate
Calorific value (kJ/g)	4	23.002	1.5
Ash content (%)	15	0	10
Ash melting point (℃)	1100	0	1200
Viscosity (mPa·s)	/	3	400
chlorine(%)	3	3	0
sulfur(%)	1.5	2.1	0
fluorine(%)	0.1	1	0
phosphorus(%)	2	1	0

Table 2 Ash element mass percentage table

According to the analysis of the physical and chemical properties of the samples, the main problem is that the calorific value of the mineral mud is low, and the iron content in the ash of the lapping liquid is high. By adding organic solvents to increase the overall calorific value, increase the amount of mineral mud used, and reduce the amount of lapping liquid used as a basis, adjust the ratio of the three to meet the element adjustment requirements.

Through data integration and configuration, it is determined that the mass percentage of each substance is organic solvent: mineral mud: fine grinding liquid = 3:1:2. According to this ratio, the configuration of the raw materials into the furnace is carried out. The physical and chemical properties of the raw materials into the furnace are analyzed in the following table.

Table 3 The physical and chemical properties of raw materials

nature	value
Calorific value (kJ/g)	16
Ash melting point (℃)	1120
Viscosity (mPa·s)	400
Moisture content (%)	12
Chlorine content (%)	2.7
Organochlorine (%)	1.2
Phosphorus content (%)	4.5
Sulfur content (%)	0.9
Fluorine content (%)	4
Ash silicon content (%)	16
Ash calcium content (%)	10
Ash aluminum content (%)	7.5
Ash iron content (%)	6
Ash sodium content (%)	12

The configured raw materials completely solve the problem of the calorific value of mineral slime and the problem of high iron content in the ash of the lapping liquid. The mixed liquor is processed in a gasifier. The temperature of the gasifier is 1350°C and the pressure is 0.8Mpa. The treatment capacity of organic fluid substances is 5m ³ /h. The amount of circulating quenching water is 50t/h, and the ratio of input oxygen volume to raw material volume is 400:1.

Under this condition, 40t of organic solvent rich in methanol, 40t of grinding debris liquid and 20t of mineral slime are processed as a whole. Through the control and adjustment of elements in the early stage, combined with the transformation rules of elements, 3t-4t of solid by-products will be produced through theoretical calculation and analysis, 1t-2t of chloride will be introduced into the chilled water body, and 0.4t-0.8t of phosphorus will be introduced into the chilled water body.

In the production process of the actual plant area, 3.45 tons of glassy by-products are produced by the gasification quenching water quenching of the gasification furnace. Particulates in the gas, after the particulates are removed, the cooled gas is converted and wet desulfurized to remove the sulfur products in the gas, and the by-product sulfur is 2.7t, and ^65780m3 of hydrogen and ^57292m3 of carbon dioxide are obtained at the same time. The composition of the generated hydrogen is determined, the hydrogen concentration reaches 99.999%, and the carbon dioxide gas concentration reaches 99.1%.

The waste water in the settling tank enters the filter press for pressure filtration to obtain a filter cake product of 0.31t. After the waste water undergoes ammonium magnesium phosphate treatment process, 4.4t of ammonium magnesium phosphate is obtained. Subsequent waste water undergoes a graded desalination process to extract 2.1t of salt for printing and dyeing.

The resulting water-quenched slag was tested by XRD, and its XRD pattern was determined as shown in Figure 2. The calculated vitreous content is 95%.

The vitreous body by-product was further tested for heavy metal leaching to judge its leaching characteristics. The data show that the leaching characteristics of the glassy by-products produced in production meet the requirements, and the glassy by-products are judged to be harmless products.

Table 4 Leaching situation table of glassy by-products

The reclaimed water in the system is produced by chilling during the gasification process, and the process will utilize the inorganic salts and ammonia nitrogen as resources, and further analyze and verify its chemical composition and treatment effect. High utilization of salt, total phosphorus and ammonia nitrogen in wastewater has been realized.

Table 5 Wastewater Treatment Effect Comparison Table

Water body	before processing	after treatment
TOC (ppm)	40	44
Ammonia nitrogen (ppm)	125	12
Total phosphorus (ppm)	260	6
Salt content (%)	13	1

In this example, conventional difficult-to-handle mineral sludge is used as raw material for disposal. The disposal process makes full use of the different characteristics of organic waste to realize the harmless treatment of mineral slime and realize the resource utilization of organic matter in it. This example reflects the wide applicability of the present invention to industrial organic wastes. Regulate the properties of different industrial organic wastes, and finally realize resourceful and harmless treatment.

Example 2

There are a variety of industrial organic hazardous wastes. The solid component is powdered activated carbon used for organic gas adsorption, the semi-solid and semi-liquid component is the rectification residue rich in DMF, and the liquid component is rich in DMF. Toluene is an organic solvent, and the residue contains a large amount of heavy metals such as Ni, Pb, and Cd. Activated carbon is ground by a rod mill with a particle size of 300 mesh, which contains heavy metals such as Cu and Ni. The semi-solid and semi-liquid rectification residue is treated with an organic solvent after standing still, and the lower solid is ground by a rod mill with a grinding particle size of 300 mesh. The organic solvent and the liquid in the upper layer of the rectification residue are homogeneous after the reaction and are used for later use.

Analyze and measure the physical and chemical properties of the pretreated industrial organic waste to determine its physical and chemical properties. .

Table 6 Physicochemical properties of samples to be processed

sample	Organic solvents	Distillation residue	activated carbon
Calorific value (kJ/g)	22.457	17.854	16.789
Ash content (%)	0	22.4	10.44
Ash melting point (℃)	\	942	>1450
Viscosity (mPa·s)	3	2000	\
chlorine(%)	3.22	1.08	2.14
fluorine(%)	1	2	1
sulfur(%)	0.01	8.6	0.69
phosphorus(%)	0.1	1	8.7

Table 7 Ash element mass percentage table

According to the physical and chemical properties of raw materials and ash element data, use software to perform data model calculations, and determine the ratio of organic solvent: rectification residue: activated carbon = 5:3:2.

Test the properties of the configured raw materials, and the data results are listed in the table below

Table 8 Physical and chemical properties of raw materials

nature	value
Calorific value (kJ/g)	18.246
Ash melting point (℃)	1120
Viscosity (mPa·s)	450
Moisture content (%)	9
Chlorine content (%)	2.4
Organochlorine (%)	1.4
Fluorine content (%)	2
Phosphorus content (%)	2.9
Sulfur content (%)	3.2
Ash silicon content (%)	15.5
Ash calcium content (%)	10.5
Ash aluminum content (%)	5.4
Ash iron content (%)	1.1
Ash sodium content (%)	10.2

The raw material is pressurized and gasified in a gasification furnace with a temperature of 1250°C and a pressure of 0.98Mpa. The treatment capacity of organic fluid substances is 10m ³ /h. The amount of circulating quenching water is 60t/h, and the ratio of oxygen volume to raw material volume is 390

Under this condition, 200t of organic solvent, 120t of rectification residue and 80t of activated carbon are processed as a whole. Through the control and adjustment of elements in the early stage, combined with the transformation rules of elements, 6t-7t of solid by-products will be produced through theoretical calculation and analysis, 5t-7t of chloride will be introduced into the chilled water body, and 8t-9t of phosphorus will be introduced into the chilled water body.

In the production process of the actual factory area, 5.5 tons of glassy by-products are produced by the gasification quenching water quenching of the gasification furnace. Particulates in the gas, after the particulates are removed, the cooled gas is converted and wet desulfurized to remove the sulfur products in the gas, and the by-product sulfur is 6.8t, and ^168790m3 of hydrogen and ^127911m3 of carbon dioxide are obtained at the same time. The composition of the generated hydrogen is determined, the hydrogen concentration reaches 99.999%, and the carbon dioxide gas concentration reaches 99.1%.

The waste water in the settling tank enters the filter press for pressure filtration to obtain a filter cake product of 1.4t. After the waste water undergoes ammonium magnesium phosphate treatment process, 10.2t of ammonium magnesium phosphate is obtained. Subsequent waste water undergoes a graded desalination process to extract 6.2t of salt for printing and dyeing. The degree of vitrification of the glassy by-product is analyzed, and it is determined that the degree of vitrification of the glassy by-product is relatively high. The XRD of the glassy by-product is shown in Figure 3. After calculation The vitreous content is 94%.

The glassy by-products were analyzed by microwave acid digestion to analyze their heavy metal content, and the results are shown in the table below.

Table 9 Glassy by-product heavy metal content

serial number	Hazardous Substances Program	Content (mg/kg)
1	As	313.63
2	Se	20
3	Zn	36.26
4	Pb	1.09
5	Cd	18
6	Ni	352.53
7	mn	1839.51
8	Cr	688.98
9	Cu	53.3
10	Ba	263.55

The results of acid leaching and water leaching component analysis of glassy by-products are as follows.

Table 10 Glassy by-product leaching table

The data sheet shows that the leaching characteristics of the glassy by-product meet the requirements and can be utilized as a paving material.

The content of organic matter in the circulating water body can be used to measure the gasification effect and gasification efficiency of the organic matter in the gasifier from the side. The actual detection data of the organic matter in the circulating water body are shown in the table below.

Table 11 Chilled water organic matter content

time (h)	TOC (ppm)
6	50
18	51
twenty four	40
30	20
36	61
42	20
48	twenty four

54	twenty four
60	30
66	40
72	44

The reclaimed water in the system is produced by chilling during the gasification process. In the process, the inorganic salt and ammonia nitrogen will be used as resources, and the chemical composition and treatment effect will be further analyzed and verified.

Table 12 Wastewater Treatment Effect Comparison Table

Water body	before processing	after treatment
TOC (ppm)	30	30
Ammonia nitrogen (ppm)	245	13
Total phosphorus (ppm)	240	12
Salt content (%)	4	4

This example is the disposal of typical industrial organic wastes. The above-mentioned hazardous organic wastes can be treated by traditional techniques. From the data analysis of the reused water body, it can be seen that the content of organic matter in the water body during the production process is low and maintained at about 30ppm. This shows that after being gasified by the gasifier, most of the organic matter in the raw material is fully decomposed and utilized, and the organic matter components are completely gasified. According to the analysis of the hydrogen output and carbon dioxide output, the output is higher than that of the traditional gasification process. This example shows that this technology realizes full resource utilization of organic matter in industrial waste.

Example 3

There are five types of industrial organic hazardous wastes, which are tar-rich rectification residues, lubricating oil organic solvents, high-concentration wastewater rich in ethyl acetate, reaction kettle bottoms, and antibiotic fermentation residues. The bottom slag of the reaction kettle is granular activated carbon, the antibiotic fermentation is a granular solid slag, the rectification residue is a slurry semi-solid, and the high-concentration wastewater and organic solvent are liquid.

The five kinds of industrial organic wastes were pretreated separately, and the reaction kettle bottom residue and antibiotic fermentation residue were ground for treatment. The rectification residue is a slurry semi-solid, and after standing and stratifying, the solid matter is ground, and the liquid matter is treated as liquid organic hazardous waste. Organic solvents and high-concentration wastewater are left to stand, layered, and homogeneously reacted to be treated.

The physical and chemical properties of the raw materials were measured for the above-mentioned several organic hazardous wastes, and the measured data are shown in the table below.

Table 13 Physical and chemical properties of organic hazardous waste

Table 14 Sample ash element mass percentage

According to the physical and chemical properties of raw materials and ash element data, use software to perform data model calculations, and determine the ratio of organic solvent: rectification residue: reactor bottom residue: antibiotic fermentation residue: high-concentration wastewater = 4:2:1:1:2

The properties of the configured raw materials are tested, and the data results are listed in the table below.

Table 15 Physical and chemical properties of raw materials

nature	value
Calorific value (kJ/g)	18.647
Ash melting point (℃)	1110
Viscosity (mPa·s)	200
Moisture content (%)	11
Chlorine content (%)	2.6
Organochlorine (%)	1.5
Fluorine content (%)	2.1
Phosphorus content (%)	3.1
Sulfur content (%)	0.8
Ash silicon content (%)	14.1
Ash calcium content (%)	13.2
Ash aluminum content (%)	4.4
Ash iron content (%)	1.2

Ash sodium content (%)

11.1

The data results meet the requirements of raw materials, and can be used as raw materials for gasifier gasification.

The raw material is pressurized and gasified by a gasifier with a temperature of 1350°C and a pressure of 1.8Mpa. The ratio of oxygen volume to raw material volume is 410:1, and the treatment capacity of organic fluid is 6m ³ /h. The amount of circulating chilled water is 60t/h.

Under such conditions, 200t of organic solvents, 100t of rectification residues, 50t of reactor bottom residues, 50t of antibiotic fermentation residues, and 100t of high-concentration wastewater are treated as a whole. Through the control and adjustment of elements in the early stage, combined with the transformation rules of elements, 10t-14t of solid by-products will be produced through theoretical calculation and analysis, 10t-12t of chloride will be introduced into the chilled water body, and 8t-9t of phosphorus will be introduced into the chilled water body.

In the production process of the actual factory area, 8.4 tons of glassy by-products are produced by the gasification quenching water quenching of the gasification furnace. Particulates in the gas, after the particulates are removed, the cooled gas is converted and wet desulfurized to remove sulfur products in the gas, and the by-product sulfur is 6.8t, and ^182580m3 of hydrogen and ^149292m3 of carbon dioxide are obtained at the same time. The composition of the generated hydrogen is determined, the hydrogen concentration reaches 99.999%, and the carbon dioxide gas concentration reaches 99.1%.

The waste water in the settling tank enters the filter press for pressure filtration to obtain a filter cake product of 3.2t. After the waste water undergoes ammonium magnesium phosphate treatment process, 12.4t of ammonium magnesium phosphate is obtained. Subsequent waste water undergoes a graded desalination process to extract 15.4t of salt for printing and dyeing.

The composition of the generated hydrogen is determined, the hydrogen concentration reaches 99.999%, and the carbon dioxide gas concentration reaches 99%.

The chemical composition in hydrogen is shown in Table 16 below.

Table 16 Hydrogen chemical composition detection table

The gas data is measured for its carbon dioxide, and the carbon dioxide does not contain free water.

The chemical composition of the glassy by-products generated during the treatment process was determined, and the chemical composition was determined by XRF as shown in Table 17

Table 17 Glassy by-product chemical composition list

The data sheet shows that the by-products in the glassy state are mainly silicon-calcium elements. Combined with the formula adjustment process, the directional transfer of elements is realized, and the XRD data spectrum of the by-products in the glassy state is detected at the same time. The spectral data is a bulging peak, and the content of the vitreous by-product of the glass state is calculated to be 98%, the content of the vitreous components is relatively high, and the vitreous is completely solidified.

Determination of glassy by-product heavy metals. The data is as follows

Table 18 Heavy metal content of glassy by-products

serial number	Hazardous Substances Program	Content (mg/kg)
1	As	334.2
2	Se	2.1
3	Zn	40.155
4	Pb	1.245
5	Cd	0.246
6	Ni	3.125
7	mn	6.25
8	Cr	1.423
9	Cu	9.1
10	Ba	32.15

The results of acid leaching and water leaching component analysis of glassy by-products are as follows.

Table 19 Glassy by-product leaching table

The data sheet shows that the leaching characteristics of the glassy by-product meet the requirements and can be utilized as a paving material.

The reclaimed water in the system is produced by chilling during the gasification process, and its chemical composition and treatment effect are further analyzed and verified

Table 20 Wastewater Treatment Effect Comparison Table

Water body	before processing	after treatment
TOC (ppm)	50	50
Ammonia nitrogen (ppm)	150	1
Total phosphorus (ppm)	200	2
Salt content (%)	14	1

The data table shows that the value of the treated reused water reaches the standard. The water body has been recycled.

Through the detection and determination of gas, solid and liquid data generated by this technology, it realizes harmlessness and resource utilization. At the same time, the elements are migrated and transformed according to the established process, and the balanced utilization of the elements is realized on the whole.

This example is a relatively common proportioning process in the present invention. The present invention requires the control of organic hazardous waste elements, so it is necessary to use various organic wastes for regulation. From the design, the scope of utilization of industrial organic hazardous waste has been expanded, and the wide utilization of industrial organic hazardous waste has been realized. While using a variety of organic hazardous wastes, it can realize the harmlessness of by-products and the recycling of organic substances.

Example 4

There are six kinds of industrial organic hazardous wastes to be processed, solid industrial organic hazardous waste resin and activated carbon, liquid industrial etching solution, semi-solid and semi-liquid organic hazardous waste biochemical sludge, distillation residue, and biological fermentation sludge.

The solid industrial organic hazardous waste is subjected to grinding treatment, and the grinding particle size is 200 mesh. Liquid industrial organic hazardous waste 2, after standing still and reacting, is used as raw material for standby. The supernatant of semi-solid and semi-liquid organic waste is treated together with the liquid organic waste, and the lower solid waste is ground together with the solid.

The physical and chemical properties of the raw materials were measured for the above-mentioned several organic hazardous wastes, and the measured data are shown in the table below.

Table 21 Physical and chemical properties of organic hazardous waste

After the industrial organic hazardous waste is burned, the burned ash is analyzed by XRF data, and the chemical composition is determined as shown in Table 21.

Table 22 Mass percentage of organic hazardous waste ash content elements

The etching solution is rich in heavy metals, and its heavy metals are determined.

Table 23 Etching solution heavy metal content

serial number	Hazardous Substances Program	Content (mg/kg)
1	As	645.1
2	Se	245.1
3	Zn	481.4
4	Pb	45.1
5	Cd	256.1
6	Ni	458.1
7	mn	2634.1
8	Cr	1584.2
9	Cu	692.4
10	Ba	699.1

According to the data analysis of various substances, the etching solution contains a large amount of heavy metals, which is highly toxic and difficult to handle. Therefore, the etching solution is a difficult problem in the treatment of industrial organic waste.

According to the physical and chemical properties of raw materials and ash element data, use software to perform data model calculations, and determine the ratio as laboratory waste liquid: etching liquid: rectification residue: biological fermentation sludge: resin powder: activated carbon = 3:2:1:2: 2:1

The properties of the configured raw materials are tested, and the data results are listed in the table below.

Table 24 Physical and chemical properties of raw materials

nature	value
Calorific value (kJ/g)	25.482
Ash melting point (℃)	1200
Viscosity (mPa·s)	541
Moisture content (%)	12
Chlorine content (%)	3.4
Organochlorine (%)	2.1
Fluorine content (%)	2
Phosphorus content (%)	4.5
Sulfur content (%)	2.4
Ash silicon content (%)	15
Ash calcium content (%)	20
Ash aluminum content (%)	4.5
Ash iron content (%)	2.1
Ash sodium content (%)	15

The data results meet the requirements of raw materials, and can be used as raw materials for gasifier gasification.

The raw material is pressurized and gasified by a gasifier with a temperature of 1400°C, a pressure of 2.1Mpa, a volume ratio of oxygen to raw material of 402, and an organic fluid treatment capacity of 10m ³ /h. The amount of circulating chilled water is 60t/h.

Under this condition, 150t of laboratory waste liquid, 100t of etching solution, 50t of rectification residue, 100t of biological fermentation mud, 100t of resin powder, and 50t of activated carbon are treated as a whole. Through the control and adjustment of elements in the early stage, combined with the transformation rules of elements, 20t-30t of solid by-products will be produced through theoretical calculation and analysis, 12t-14t of chloride will be introduced into the chilled water body, and 12t-14t of phosphorus will be introduced into the chilled water body.

In the production process of the actual factory area, 20.4 tons of glassy by-products are produced by the gasification quenching water quenching of the gasification furnace. Particulates in the gas, after the particulates are removed, the cooled gas is converted and wet desulfurized to remove sulfur products in the gas, and the by-product sulfur is 4.5t, and ^282580m3 of hydrogen and ^222452m3 of carbon dioxide are obtained at the same time. The composition of the generated hydrogen is determined, the hydrogen concentration reaches 99.999%, and the carbon dioxide gas concentration reaches 99.1%.

The waste water in the settling tank enters the filter press for pressure filtration to obtain a filter cake product of 4.5t. After the waste water undergoes ammonium magnesium phosphate treatment process, 13.9t of ammonium magnesium phosphate is obtained. Subsequent waste water undergoes a graded desalination process to extract 12.4t of salt for printing and dyeing.

The composition of the generated hydrogen is determined, the hydrogen concentration reaches 99.999%, and the carbon dioxide gas concentration reaches 99%.

The focus of this treatment process is how to realize the solidification of heavy metals and carry out detailed analysis and determination of glassy by-products. The chemical composition of the glassy by-products produced during the treatment process was determined, and the chemical composition was determined by XRF as shown in Table 25.

Table 25 Glassy by-product chemical composition list

The data sheet shows that the by-products in the glassy state are mainly composed of silicon-calcium-iron elements. Combined with the formula adjustment process, the directional transfer of elements has been realized. At the same time, the XRD data spectrum of the glassy by-products shows that the vitreous content is 98%.

At the same time, the glassy by-products were analyzed by electron microscope. As shown in Figure 4, the electron microscope data show that the main elements of the glassy by-products are calcium, silicon, aluminum, phosphorus, and oxygen. These elements can realize the transfer of solid components, so The distribution of the elements shows that, through the adjustment, the directional transformation of the elements is achieved.

Table 26 Glassy by-product heavy metal content

serial number	Hazardous Substances Program	Content (mg/kg)
1	As	64.1
2	Se	31.0
3	Zn	40.1
4	Pb	4.5
5	Cd	25.13
6	Ni	55.4
7	mn	267
8	Cr	210.1
9	Cu	80.1
10	Ba	60.1

The results of acid leaching and water leaching component analysis of glassy by-products are as follows.

Table 27 Glassy by-product leaching table

The data sheet shows that the glassy by-product leaching characteristics are also satisfactory and can be utilized as a paving material.

Further data analysis is carried out on the reused water body, and the effects of graded desalination treatment and ammonium magnesium phosphate treatment are tested at the same time.

Table 28 Wastewater Treatment Effect Comparison Table

Water body	before processing	after treatment
TOC (ppm)	45	40
Ammonia nitrogen (ppm)	404	2
Total phosphorus (ppm)	524	4
Salt content (%)	14	2

The data table shows that the value of the treated reused water reaches the standard. Moreover, the graded desalination process and magnesium ammonium phosphate treatment process meet the actual production requirements.

In this example, the etching solution is used as waste treatment. The etching solution contains a large amount of heavy metals, and the metal content is high. It needs to be combined with silicon, aluminum, calcium and other elements to solidify the heavy metals. Through the determination of the metal content, element distribution and other properties of the glassy by-products, it is determined to achieve the solidification of heavy metals, and the overall process realizes harmless production.

Comparative example 1

The existing high-concentration wastewater of etching solution needs to be treated, and the coal-water slurry gasification co-processing technology is used for treatment. The properties of high-concentration wastewater of etching solution are as follows. Because the etchant contains a large amount of heavy metals, the leaching characteristics of the glassy products produced are mainly analyzed.

Table 29 Properties of High Concentration Wastewater

sample	High concentration wastewater
Calorific value (kJ/g)	6
Ash content (%)	1
Ash melting point (℃)	800
Viscosity (mpa)	1
chlorine(%)	2
fluorine(%)	1
sulfur(%)	0.4
phosphorus(%)	1
pH	6

The ratio of high-concentration organic wastewater of etching solution to coal is 4:6. Analyze the resulting slurry

Table 30 Physicochemical Properties of Slurry

nature	value
Calorific value (kJ/g)	18.05
Ash melting point (℃)	1110
Viscosity (mPa·s)	1000
Moisture content (%)	40
Chlorine content (%)	0.1
Organochlorine (%)	0.2
Fluorine content (%)	2.1
Phosphorus content (%)	4.1
Sulfur content (%)	3.2
Ash silicon content (%)	50
Ash calcium content (%)	9
Ash aluminum content (%)	4
Ash iron content (%)	1.2
Ash sodium content (%)	1

The raw material is pressurized and gasified in a gasification furnace, the temperature of the gasifier is 1250°C, the pressure is 1.6Mpa, the oxygen volume ratio is 400 to the raw material volume, and the organic fluid material treatment capacity is 6m ³ /h. The amount of circulating chilled water is 60t/h. Under this condition, 40t of high-concentration organic wastewater and 60t of coal will be treated as a whole. According to the calculation rules of the present invention, 0.4t-0.6t of solid by-products will be produced, 2t-3t of chloride will be introduced into the chilled water body, and 0.2t-1t of phosphorus will be introduced into the chilled water body. In the actual factory area, 15.5 tons of water-quenched glassy by-products and 8.4 tons of carbon black products are produced. The output of syngas is 250601m ³ /h, of which the hydrogen content is 30%. Among them, the glassy by-products are quite different from the theoretical calculation, because the ash in coal expands the volume of the glassy by-products while not playing the role of regulating elements.

The XRD data analysis of the glassy by-products is shown in Figure 5. The degree of vitrification is poor, and the vitreous body content is 60%.

The results of acid leaching and water leaching component analysis of glassy by-products are as follows.

Table 31 Glassy by-product leaching table

This example shows that, in order to achieve the solidification of heavy metals in the etching solution, the leaching index is much higher than the requirement for the co-processing of hazardous waste by coal-water slurry gasification. At the same time, the addition of coal slag increases the volume of glassy by-products, which fails to achieve harmless production for subsequent treatment, causing environmental pollution.

Comparative example 2

There are a variety of industrial organic hazardous wastes. The solid component is powdered activated carbon used for organic gas adsorption, and the semi-solid and semi-liquid component is the distillation residue rich in DMF. Two kinds of organic wastes are disposed of by coal-water slurry gasification co-processing technology. Analyze the chemical properties of substances.

Table 32 Physicochemical properties of samples to be treated

sample	Distillation residue	activated carbon
Calorific value (kJ/g)	17.854	16.789
Ash content (%)	22.4	10.44
Ash melting point (℃)	942	>1450
Viscosity (mPa·s)	2000	\
chlorine(%)	1.08	2.14
fluorine(%)	2	1
sulfur(%)	8.6	0.69
phosphorus(%)	1	8.7

According to coal water slurry gasification co-processing technology, coal water slurry: distillation residue: activated carbon = 5:3:2.

The slurry is pressurized and gasified in a gasifier with a temperature of 1250°C and a pressure of 0.98Mpa. The treatment capacity of organic fluid substances is 10m ³ /h. The amount of circulating quenching water is 60t/h, and the ratio of oxygen volume to raw material volume is 390

Under this condition, 200t of coal-water slurry, 120t of rectification residue, and 80t of activated carbon will be treated as a whole. If the calculation rules of the present invention are used, 8t-16t of solid by-products will be produced, and 2t-3t of chlorides will be introduced into the chilled water body. Introduce phosphorus 8t-10t.

In the actual production process, 60.2 tons of water-quenched glassy by-products and 10.4 tons of carbon black products are produced in the factory area. Syngas production is 36541m ³ /h, of which the hydrogen content is 38%.

The results of acid leaching and water leaching component analysis of glassy by-products are as follows.

Table 33 Glassy by-product leaching table

Data analysis During the co-processing of coal-water slurry, the water leaching effect is not up to standard

The content of organic matter in the circulating water body can be used to measure the gasification effect and gasification efficiency of the organic matter in the gasifier from the side. The actual detection data of the organic matter in the circulating water body are shown in the table below.

Table 34 Chilled water organic matter content

time (h)	TOC (ppm)
6	2000
18	2146
twenty four	3459
30	4587
36	5712
42	5471
48	4561
54	2352
60	3541
66	4587
72	6541

This example is the disposal of typical industrial organic wastes. Coal-water slurry gasification synergistic technology is used to process typical organic wastes. The organic matter in the recycled water body shows that the gasification effect in the gasifier is poor, and the resource utilization of organic matter is not well controlled. The resource utilization of organic matter is poor, and the utilization of inorganic salts in water requires the removal of organic matter.

Among the above examples, Example 1 highlights the wide applicability of the present invention to industrial organic hazardous waste. In the example, mineral slime is selected as the furnace raw material. Due to the low calorific value, high ash content and complex metal types of the mineral slime, it cannot be processed and utilized by the existing technology. Through the analysis of physical and chemical properties, the present invention makes full use of the complex characteristics of the metal types, adjusts the content of different metals in the raw materials into the furnace, and finally not only realizes the harmless and resourceful utilization of mineral slime, which shows that the present invention has the characteristics of wide applicability. Example 2 and Comparative Example 2 highlight the high gasification conversion efficiency of organic matter in the present invention. In the two examples, different technologies are used to treat similar industrial organic hazardous wastes, and the content of organic matter in the recycled water is compared and analyzed. By finely adjusting the raw materials into the furnace, more sufficient gasification of organic matter can be realized, which shows that the present invention can realize the reduction of hazardous waste. Harmless treatment and efficient resource utilization of organic matter in waste. Example 3 shows that the present invention uses typical and bulk organic hazardous wastes as raw materials for processing, the overall processing process is stable, the components of by-products in the vitreous body meet the requirements, the high-purity hydrogen reaches the standard and the output is relatively high, which shows that in the actual production process, the present invention It has stable and reliable performance, and can realize the unification of resource utilization and harmless treatment of organic hazardous waste. Example 4 and Comparative Example 2 highlight that the present invention realizes the stabilization and harmlessness of heavy metals. The two examples compare and analyze the leaching toxicity and production amount of glassy by-products after the treatment of organic waste containing heavy metals. The present invention realizes the solidification of heavy metals and better stabilization effect through the adjustment of the main metal content of ash in the early stage, and the vitreous water While reducing the amount of quenched slag, realize harmless production. In summary, the above examples fully illustrate that the present invention can achieve higher gas efficiency for organic matter by performing multi-phase state pretreatment, multi-element control, multi-component homogeneity and precise compatibility of raw materials into the furnace for all organic hazardous waste. It is a low-carbon, green and clean technical method to improve the conversion efficiency and harmless of heavy metals, and at the same time realize the resource utilization of nitrogen, phosphorus, chlorine, sodium, potassium, sulfur and other elements, and achieve near-zero discharge of pollutants.

Claims (10)

1. The harmless and resourceful method of gasification and high-temperature melting of industrial organic hazardous waste is characterized in that it includes the following steps:

   1) According to the phase state, carry out compatibility pretreatment on various industrial organic hazardous wastes;

   2) Analyzing and measuring the physical and chemical properties of various industrial organic hazardous wastes after compatibility pretreatment, the physical and chemical properties include main element content, pH value, calorific value, viscosity, ash melting point, ash content, etc.;

   3) Configure the raw materials for the industrial organic hazardous waste after the physical and chemical properties are determined. After the configuration is completed, the physical and chemical properties of the raw materials for the furnace should meet: the total calorific value is 15kJ/g-25kJ/g, and the ash melting point of the raw material is 800°C ~1200°C, raw material viscosity should be less than 800mPa·s, raw material moisture content 10%-30%, raw material total chlorine content should be less than 10%, organic chlorine content should be less than 6%, raw material total sulfur content should be less than 8%, raw material content The total fluorine content should be less than 6%;

   4) Multi-element control is carried out for industrial organic hazardous waste. After the configuration is completed, the ash element composition of the raw material into the furnace should meet: silicon content of 5%-50%, phosphorus content of 1%-10%, aluminum content of 5%-15% %, iron content is 1%-5%, sodium content is 10%-40%, calcium content is 5%-50%;

   5) The raw materials that have been precisely regulated and configured enter the gasifier for gasification and high-temperature melting. The raw materials that enter the gasifier are all industrial organic hazardous waste and are not mixed with fossil energy; the high-temperature gas after the reaction and the molten inorganic The substance quickly enters the chilling chamber for chilling to realize the cooling of high-temperature gas and the solidification of molten inorganic substances; in this process, chilling wastewater will be generated, and most of the inorganic salts will be dissolved in the wastewater;

   6) The cooled gas is separated, washed, transformed, and desulfurized to form a gas mainly composed of hydrogen and carbon dioxide. The gas is decarburized to form carbon dioxide and high-purity hydrogen products, and the hydrogen sulfide gas obtained after desulfurization is further converted into sulfur By-products;

   7) The molten inorganic matter will produce glassy by-products after quenching. Since the main element components are regulated during the configuration of the raw materials into the furnace, the toxicity of the glassy by-products can meet the requirements of water leaching and acid leaching. The relevant standards can be used as general solid waste;

   8) The chilled wastewater contains a large amount of inorganic salts and fine particles. The chilled water settles in the settling tank for solid-liquid separation, and the solids in the lower layer enter the plate and frame filter press for pressure filtration to form carbon black filter cake, whose toxicity meets water leaching Relevant standards related to acid leaching can be used as general solid waste, or further returned to the gasifier for raw material compatibility;

   9) Collect the supernatant of the sedimentation tank and the supernatant after pressure filtration, and use the ammonium magnesium phosphate treatment process to extract the nitrogen and phosphorus resources. The formed struvite can be used as raw materials for the production of compound fertilizers. Cold water recycling, if the dissolved inorganic salt content in the circulating wastewater is greater than 10%, it needs to enter the evaporation device for evaporation and crystallization for desalination, the obtained inorganic salt is mainly sodium chloride after separation, and can be used as Used for dyeing and printing.
2. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes as claimed in claim 1, characterized in that said step 1) is specifically:

   The non-viscous solid organic hazardous waste is crushed and ground, and the solid particle size after treatment is controlled at 100-600 mesh; the viscous solid organic hazardous waste is first mechanically stripped from the package and the solid, and the package is cleaned to meet the standard Finally, it is used as general solid waste. The stripped solids are first shredded mechanically, and then heated and stirred in a closed container under the action of organic wastewater or solvents to form materials;

   The liquid organic hazardous waste is firstly stratified in the storage tank, and then reacts to remove its reactivity and corrosiveness. After standing and stratifying, it is transported to different liquid storage tanks through mass flow meters according to the different density ranges of the liquid. ;

   The semi-solid and semi-liquid organic hazardous waste is put into static stratification first, and the stratified upper liquid is extracted to the liquid organic hazardous waste storage tank, and treated according to the liquid organic hazardous waste treatment method; the lower solid is treated as viscous solid organic waste. Hazardous waste disposal methods.
3. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes as claimed in claim 1, characterized in that the industrial organic hazardous wastes are selected from HW01-06 in the National Hazardous Waste List (2021) , HW08～13, HW37～40, HW45, HW49, HW50 types of hazardous waste.
4. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes as claimed in claim 2, characterized in that after the liquid organic hazardous wastes are placed in the storage tank and stratified, according to According to the nature of each layer of liquid organic hazardous waste, the reaction is carried out first to remove the reactivity; when the reactivity cannot be removed through the reaction, the third liquid organic hazardous waste is pumped according to the nature of the liquid organic waste for reaction, and according to the reaction Changes in the pH of the liquid are adjusted to facilitate the removal of chemically reactive and corrosive properties.
5. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes according to claim 1, characterized in that the reaction temperature of gasification and high-temperature melting in step 5) is 1000°C to 1500°C, The gasifier pressure is 0.5Mpa-8Mpa, the volume ratio of input gasifier oxygen to raw material is 300:1-500:1, part of the nozzle area inside the gasifier is in an oxidized state, and the outer area of the gasifier nozzle is in a reduced state.
6. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes as claimed in claim 1, characterized in that in step 7), if the glassy by-products are found to have hazardous waste characteristics, then Treat it as hazardous waste and return to step 1) for pretreatment according to the phase state, and then use it for the configuration of raw materials for gasification into the furnace.
7. As claimed in claim 1, the harmless and resourceful method of gasification of all industrial organic hazardous wastes and high-temperature melting is characterized in that if the carbon black filter cake obtained in said step 8) is found to have hazardous waste characteristics, it will be As a hazardous waste, return to step 1) for pretreatment according to the phase state, and then use it for the configuration of the raw material for gasification into the furnace.
8. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes as claimed in claim 1, characterized in that said step 9) utilizes the waste water produced, and nitrogen and phosphorus in the waste water are used for ammonium magnesium phosphate Preparation, stepwise crystallization, purification and utilization of inorganic salts such as sodium chloride and potassium chloride in wastewater, to realize resource utilization of nitrogen, phosphorus, chlorine, sodium, potassium and other elements.
9. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes as claimed in claim 1, characterized in that, in the step 3) and step 4), the calorific value of raw materials into the furnace is controlled by controlling the raw materials 18.647kJ/g, raw material ash melting point 1110°C, raw material viscosity 200mPa·s, raw material moisture content 11%, raw material chlorine content 2.6%, organic chlorine content 1.5%, raw material sulfur content 0.8%, raw material fluorine The ash content of raw materials into the furnace is composed of elements, silicon content is 14.1%, phosphorus content is 3.1%, aluminum content is 4.4%, iron content is 1.2%, sodium content is 11.1%, and calcium content is 13.2%.
10. The harmless and resourceful method of gasification and high-temperature melting of all industrial organic hazardous wastes according to claim 1, characterized in that, in the step 5), the temperature of the gasifier is 1350°C and the pressure is 1.8Mpa , flow type into the furnace raw material processing flow rate is 6m ³ /h, input gasifier oxygen volume to raw material ratio is 400:1, circulating quenching water is 60t/h.

Images