CN105568210A - Waste disposal method - Google Patents

Waste disposal method Download PDF

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Publication number
CN105568210A
CN105568210A CN201610096711.2A CN201610096711A CN105568210A CN 105568210 A CN105568210 A CN 105568210A CN 201610096711 A CN201610096711 A CN 201610096711A CN 105568210 A CN105568210 A CN 105568210A
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China
Prior art keywords
waste
waste water
spray
disposal
treatment
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CN201610096711.2A
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CN105568210B (en
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叶玉芳
叶华健
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ZHEJIANG SHANGDING INDUSTRIAL FURNACE Co Ltd
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ZHEJIANG SHANGDING INDUSTRIAL FURNACE Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/34Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in more than one step

Abstract

The invention relates to a waste disposal method. The waste disposal method comprises the steps of pre-cleaning, preheating, nitridation, oxidation, post-cleaning, gas disposal part, waste water disposal part and waste residue disposal part. According to the waste disposal method, (a) the waste water disposal part is conducted, specifically, waste water of a pre-cleaning tank disposal part and a post-cleaning tank disposal part is introduced into a precipitation tank to be precipitated, the rest of waste water is introduced into a filter tank to be filtered and then is introduced into a spray tower to serve as spray water, the sprayed waste water is subjected to secondary precipitation and filtration to serve as spray water again; (b), the waste residue disposal part is conducted, specifically, leftover waste residues after reactions of the nitridation disposal part and the oxidation disposal part are sent into a residue processing furnace to be combusted, and the neutralizing detoxication process is completed; and (c), the gas disposal part is conducted, specifically, a gas mixture produced in the waste residue disposal part is introduced into the spray tower for spray processing and then is discharged after reaching the standard. According to the waste disposal method, the detoxication harmless disposal of the waste residues, recycling of the waste water and deep purification disposal of waste gases are achieved by disposing the waste residues, the waste water and the waste gases which are produced in the nitrogen-carbon-oxygen heat treatment process in a separated purification disposal mode, and the technique operation steps are simplified.

Description

A kind of refuse processing method
Technical field
The present invention relates to a kind of refuse processing method waste water, waste residue etc. that produce in nitrogen carbon oxygen Combined Processing process being carried out to recycling treatment.
Background technology
In technical field of heat treatment, in order to improve the hardness, wear resistance, erosion resistance etc. of metal works, need to carry out a series of process for modifying surface such as removal of impurities, nitriding and oxide treatment to workpiece, but in traditional heat treatment process, separately between every procedure, single to carry out, be not connected each other, the waste of generation is also individually carry out purifying treatment, complex process and add the cost of waste purifying treatment.
Chinese invention patent 201410243622.7 discloses a kind of nitrogen carbon oxygen composite treatment process and device, comprise front cleaning, preheating, carbonitriding, oxidation, off gas treatment and rear cleaning, introducing in oxidized still containing poisonous gas in nitriding furnace is carried out Detoxified treatment by it, and qualified discharge after the gas in oxidized still being introduced absorption tower spray process, it achieves the compound of nitrogenize operation and oxidation operation in method, simplify operating procedure to a certain extent, decrease floor space, the flue dust difference reuse of collecting after simultaneously the gas in nitriding furnace and oxidized still being carried out de-dirt process is in corresponding nitriding furnace or oxidized still, decrease purifying treatment step, realize recycling treatment.Although this technique and corresponding device thereof achieve the compound of nitrogenize operation and oxidation operation, improve exhaust purification efficiency, but reflect according to applicant, in use still come with some shortcomings: in this Combined Processing process, all some waste water or waste residue can be produced with every procedure, especially the wastewater volume produced after Water spray is large and have toxicity, and residual waste residue after nitriding furnace and oxidized still reaction, traditional processing mode is carried out concentrated fixed-end forces, but its quality is large, purifying treatment operation is loaded down with trivial details, efficiency is low, simultaneously, owing to still retaining a part of unreacted nitridation salt in this waste residue, adjustment salt or saline oxide etc. are containing cyanogen root salt, there is toxicity and very easily water-soluble, if can not get sufficient purifying treatment, easily cause secondary environmental pollution, and this technique and device do not carry out deep purifying and recycle process for waste water described above and waste residue, cause the waste that resource is unnecessary.
Summary of the invention
The object of the invention is for the deficiencies in the prior art part, a kind of refuse processing method is provided, the waste residue, waste water and the waste gas that produce in nitrogen carbon oxygen heat treatment process are adopted the mode of separate type purifying treatment, the removing toxic substances realizing waste residue is innoxious, the cycling and reutilization of waste water and the deep purifying process of waste gas, optimize the purification process technique of waste, simplify technological operation step, shorten the purifying treatment time.
Technology solution of the present invention is as follows:
A kind of refuse processing method, comprise front cleaning, preheating, nitrogenize, oxidation, rear cleaning and air treatment section, the flue dust that described nitriding treatment part produces is introduced in oxidized still and is carried out oxidation Detoxified treatment, the waste gas that oxide treatment part produces is introduced spray column and is carried out spray process, it is characterized in that: also comprise waste water treatment section and Solid state fermentation part
(a) waste water treatment section: the waste water of front clean part and rear rinse bath treating part is introduced in settling bath and precipitates, again residue waste water is introduced after carrying out Depth Filtration in filter vat, introduce spray column and make spray-water, the waste water produced after spray, introduce in wastewater trough and filter vat again, be reintroduced back in spray column after precipitation, filtration;
(b) Solid state fermentation part: waste residue remaining after nitriding treatment part and oxide treatment partial reaction is sent into Slag treatment stove combustion 20 ~ 90min complete in and detoxification processes, and generating the gaseous mixture that ammonia, carbonic acid gas and dust form, temperature of combustion is between 800 DEG C ~ 1000 DEG C;
(c) air treatment section: the rear qualified discharge of spray column spray process introduced by gaseous mixture Solid state fermentation part produced.
Waste residue in the present invention, by burn processing, reacts with removing toxic substances during the toxic substance in waste residue can be completed at short notice under specific hot conditions.
As improvement, during the waste water after described spray process carried out its pH value before Detoxified treatment and regulate.
As improvement, add weakly acid soln in described waste water after spray process, regulate waste water ph to be 6 ~ 8.Wherein, weakly acid soln adopts concentration to be the acetic acid of 10% ~ 20%.
As improvement, concentrated by the throw out in settling bath and filter vat and send into Slag treatment stove combustion 20 ~ 90min, temperature of combustion is between 800 DEG C ~ 1000 DEG C.
As improvement, described waste gas after the process of one-level spray is introduced in activated carbon adsorber again and is carried out secondary absorption purification.
As improvement, the waste water after described front clean part, rear rinse bath treating part and spray introduces precipitation 0.5 ~ 2h in settling bath.
Beneficial effect of the present invention is:
The waste residue produced in each operation of nitrogen carbon oxygen heat treatment process is carried out centralized burning by the present invention, with removing toxic substances reaction in making the toxic substance in waste residue occur under specific hot conditions, thus realize minimizing and the harmless treatment of waste residue, carry out spray cleaning process qualified discharge by the exhaust gas centralized produced after burning simultaneously, and neutralization adjustment is carried out to the waste water produced after spray, spray-water use is remake after precipitation and filtration, realize the cycling and reutilization of waste water, optimize waste water, the purification process technique of waste residue and waste gas, simplify technological operation step, shorten the purifying treatment time, and whole technological process achieves the innoxious of waste, resource utilization and minimizing.
Another object of the present invention is for the deficiencies in the prior art part, a kind of nitrogen carbon oxygen castoff processing system is provided, remaining waste residue reacted in nitriding furnace and oxidized still is sent in Slag treatment stove and carries out concentrated combustion, waste residue is made to realize rapid detoxification process, after precipitating, filtering, introduce spray column again in Waste Water Centralized introducing settling bath simultaneously after front rinse bath, rear rinse bath and spray column spray and make spray-water, realize the cycling and reutilization of waste water, this stable system performance, reduce purification apparatus to a great extent, reduce costs.
The scheme that the present invention solve the technical problem is:
A kind of castoff processing system, comprise front rinse bath, preheating oven, nitriding furnace, oxidized still, rear rinse bath and air processing unit, described nitriding furnace is connected with oxidized still by outlet pipe, oxidized still is connected with the inlet mouth of spray column by exhaust pipeline a, it is characterized in that: also comprise treatment unit for waste water and Solid state fermentation unit
Treatment unit for waste water comprises settling bath and filter vat, a filtering net is provided with between settling bath and filter vat, this settling bath is connected with the water outlet of spray column with front rinse bath, rear rinse bath with waste pipe c respectively by waste pipe a, waste pipe b, and filter vat is connected with the water-in of spray column by waste pipe d;
Solid state fermentation unit comprises Slag treatment stove, and this Slag treatment stove is connected with oxidized still with nitriding furnace respectively by waste residue transport pipe a;
Air processing unit comprises the exhaust pipeline b being communicated with the pneumatic outlet of Slag treatment stove and the inlet mouth of spray column.
As improvement, near the water outlet of described spray column, be also provided with pH detector, for detecting the pH value of the water outlet waste water of spray column.
As improvement, described spray column is also provided with acidic solution throwing device, in waste water, quantitatively adds acidic solution according to the pH value of waste water after spray column spray, make wastewater pH maintain the normal range of 6 ~ 8, be beneficial to and follow-up purifying treatment carried out to the impurity in waste water, improve waste water reuse rate.
As improvement, described Slag treatment stove is connected with filter vat with settling bath respectively by waste residue transport pipe b.
As improvement, the air outlet of described spray column is also connected with activated carbon adsorber.
As improvement, described filtering net is the one in non-woven fabrics filter cotton or glass fiber filter cotton.
Beneficial effect of the present invention is:
(1) reacted residue in the throw out deposited in front rinse bath, rear rinse bath and nitriding furnace, oxidized still is concentrated to send in Slag treatment stove and is carried out Thorough combustion by the present invention, realize the minimizing of waste residue, harmless treatment, simultaneously by introducing after spray column carries out the process of one-level spray in the exhaust gas centralized of oxidized still and the reaction of Slag treatment stove, then carry out secondary absorption purifying treatment and qualified discharge through activated carbon adsorber;
(2) after the waste water after front rinse bath, rear rinse bath and spray column work being carried out concentrate precipitation and depth type filtration, introduce in spray column and do Water spray use, the waste water produced after spray carried out in pH value simultaneously and to regulate and after Detoxified treatment, be reintroduced back to settling bath, after secondary sedimentation, filtration, reuse, to spray column, realizes the cycling and reutilization of waste water again, reaches the object of energy-saving and emission-reduction, carry out recycling treatment to the full extent, reduce production cost;
In sum, present invention achieves the separate type process of waste water and dregs, concentrated deep purifying is carried out to the waste gas produced in every procedure, waste water or waste residue, stable system performance, failure rate is low, has purifying treatment efficiency high, purifying treatment step simplifies, low cost and other advantages.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the process flow sheet of the nitrogen carbon oxygen refuse processing method of the embodiment of the present invention one;
Fig. 2 represents the hydrogen root (CN in the temperature of combustion of Slag treatment stove and waste residue -), cyanate radical (CNO -) and saline oxide (ABL) concentration between the chart of relation;
Fig. 3 is the structured flowchart of the nitrogen carbon oxygen castoff processing system of the embodiment of the present invention two.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is illustrated clearly and completely.
Embodiment one
Fig. 1 is the process flow sheet of the nitrogen carbon oxygen refuse processing method of the embodiment of the present invention one; As shown in Figure 1, the invention provides a kind of refuse processing method, comprise front cleaning, preheating, nitrogenize, oxidation, rear cleaning and air treatment section, the flue dust that described nitriding treatment part produces is introduced in oxidized still and is carried out oxidation Detoxified treatment, the waste gas that oxide treatment part produces is introduced spray column and is carried out spray process, it is characterized in that: also comprise waste water treatment section and Solid state fermentation part
(a) waste water treatment section: the waste water of front clean part and rear rinse bath treating part is introduced in settling bath and carries out precipitation 0.5 ~ 2h, again residue waste water is introduced after carrying out Depth Filtration in filter vat, introduce spray column and make spray-water, the waste water produced after spray, introduce in wastewater trough and filter vat again, be reintroduced back in spray column after precipitation, filtration;
(b) Solid state fermentation part: waste residue remaining after nitriding treatment part and oxide treatment partial reaction is sent into Slag treatment stove combustion 20 ~ 90min complete in and detoxification processes, and generating the gaseous mixture that ammonia, carbonic acid gas and dust form, temperature of combustion is between 800 DEG C ~ 1000 DEG C;
(c) air treatment section: the rear qualified discharge of spray column spray process introduced by gaseous mixture Solid state fermentation part produced.
Under production conditions, owing to containing some unconverted hydrogen root (CN in the residue in nitriding furnace -) and part cyanate radical (CNO -), all there is hypertoxicity, in Slag treatment stove combustion process, pass into oxygen or air provides oxygen element, make hydrogen root (CN -) when the temperature combustion of 400 DEG C ~ 800 DEG C, it is oxidized to cyanate radical, and concrete reaction process is as follows:
2CN +O 2→2CNO
CN +[O]→CNO
In the high-temp combustion process of 800 DEG C ~ 1000 DEG C, the hydrogen root (CN in nitriding furnace residue -) and cyanate radical (CNO -) there is oxidizing reaction with the saline oxide (ABL) in oxidized still residue, make the hydrogen root (CN in waste residue -) and cyanate radical (CNO -) decomposed, thus thoroughly elimination hydrogen root reaches environmental protection, concrete reaction process is as follows:
CN +ABL→CO 3 2-+…
CNO +ABL→CO 3 2-+…
The carbonic acid gas, dust etc. that produce after burning are introduced after spray column carries out the process of one-level spray, then introduce in activated carbon adsorber and carry out qualified discharge after secondary absorption purifying treatment, and two stages for the treatment of improves the decontamination effect improving of waste gas.
In this embodiment, preferably, as shown in Figure 2, more than 400 DEG C in the temperature field of less than 800 DEG C, the hydrogen root (CN in residue -) and oxygen element generation oxidizing reaction, hydrogen root (CN in this temperature field -) concentration reduce gradually, due to hydrogen root (CN along with the rising of temperature -) be oxidized to cyanate radical, thus cause the cyanate radical (CNO in this temperature field -) concentration can raise along with the rising of temperature of combustion.More than 800 DEG C in the temperature field of less than 1000 DEG C, now, the hydrogen root (CN in Slag treatment stove -) and cyanate radical (CNO -) start oxidizing reaction occurs with the saline oxide (ABL) in waste residue, make hydrogen root (CN -), cyanate radical (CNO -) and the concentration of saline oxide (ABL) reduce along with the rising of temperature, if temperature of combustion reaches more than 1000 DEG C hydrogen root (CN -), cyanate radical (CNO -) and the concentration of saline oxide (ABL) then roughly become certain.
In the present embodiment, containing a large amount of ammonias and ammonia root etc. in the waste water produced after spray process, its very easily water-soluble pH value of waste water that makes is greater than 9 usually, affect waste water quality, pole is unfavorable for follow-up cycling and reutilization, and the present invention, before waste water introduces settling bath, adds weakly acid soln in waste water, regulate to carry out neutralization to its pH value, make the waste water ph after adjustment be 6 ~ 8.Wherein, weakly acid soln in the present embodiment adopts concentration to be the acetic acid of 10% ~ 20%, and cost is low and easily obtain.
In nitrogen carbon oxygen combined heat treatment process, workpiece in cleaning process on it with iron filings and residual hydrogen root be dissolved in rinse bath, the throw out in rinse bath is made to have toxicity, the present invention sends into Slag treatment stove combustion 5 ~ 20min by being concentrated by the throw out in settling bath and filter vat, temperature of combustion is between 800 DEG C ~ 1000 DEG C, thus eliminate its toxicity and reach environmental protection, realize the minimizing process of waste residue simultaneously.
Embodiment two
Fig. 3 is the structured flowchart of the nitrogen carbon oxygen castoff processing system of the embodiment of the present invention two; As shown in Figure 3, the invention provides a kind of castoff processing system, comprise front rinse bath 1, preheating oven 2, nitriding furnace 3, oxidized still 4, rear rinse bath 5 and air processing unit, treatment unit for waste water and Solid state fermentation unit, described nitriding furnace 3 is connected with oxidized still 4 by outlet pipe, and oxidized still 4 is connected with the inlet mouth 71 of spray column 7 by exhaust pipeline a6; Treatment unit for waste water comprises settling bath 8 and filter vat 9, a filtering net 10 is provided with between settling bath 8 and filter vat 9, this settling bath 8 is connected with the water outlet 72 of spray column 7 with front rinse bath 1, rear rinse bath 5 with waste pipe c13 respectively by waste pipe a11, waste pipe b12, and filter vat 9 is connected with the water-in 73 of spray column 7 by waste pipe d14;
Air processing unit comprises the pneumatic outlet 151 and the exhaust pipeline b16 of the inlet mouth 71 of spray column 7 that are communicated with Slag treatment stove 15, and the air outlet of spray column 7 is connected with activated carbon adsorber 18, realizes the process of waste gas two-step purification, improves decontamination effect improving, energy-conserving and environment-protective.
Wherein, Solid state fermentation unit comprises Slag treatment stove 15, and described Slag treatment stove 15 is connected with oxidized still 4 with nitriding furnace 3 respectively by waste residue transport pipe a; In addition, this Slag treatment stove 15 is connected with filter vat 9 with settling bath 8 respectively by waste residue transport pipe b, settling in settling bath 8 and filter vat 9 to be sent in Slag treatment stove 15 through waste residue transport pipe b by conveying belt and is burnt, to realize minimizing, the harmless treatment of waste, structure is simple, and efficiency is high.
In the present embodiment, in order to the waste water ph at water outlet 72 place of the more convenient spray column of Real-Time Monitoring intuitively 7, pH detector is also provided with near the water outlet 72 of spray column 7, the top of this spray column 7 is also provided with acidic solution throwing device 17, the pH value that can spray rear waste water according to spray column 7 quantitatively adds acetum in waste water, make waste water ph maintain the normal range of 6 ~ 8, regulate waste water quality, be beneficial to and follow-up deep purifying process carried out to waste water.
Filtering net 10 in the present invention adopts the one in non-woven fabrics filter cotton or glass fiber filter cotton, carries out filtration, purification to the impurity in waste water in settling bath 8, realizes waste water recycling capable of circulation, reaches the object of energy-saving and emission-reduction.
Wherein, in the present embodiment, described front rinse bath 1, preheating oven 2, nitriding furnace 3, oxidized still 4 and rear rinse bath 5 are arranged side by side successively, optimize space utilization, are convenient to suspender location, are beneficial to the shift motion shortening suspender and switch at per pass inter process, increase work efficiency.
Principle of work:
After the first premenstrual rinse bath 1 of workpiece after being installed carries out cleaning by degreasing, hanging in temperature is carry out thermal pretreatment in the preheating oven 2 of 350 DEG C ~ 400 DEG C, hanging in temperature is subsequently carry out Nitrizing Treatment in the nitriding furnace 3 of 400 DEG C ~ 550 DEG C, then enter after carrying out oxide treatment in oxidized still 4, hanging in temperature is be incubated 10min ~ 20min in the rear rinse bath 5 of 70 DEG C ~ 80 DEG C, cool in atmosphere more afterwards, the dry nitrogen carbon oxygen Combined Processing namely completing workpiece, in this process, oxidation Detoxified treatment is carried out in being passed in oxidized still 4 by outlet pipe containing poisonous gas of producing in nitriding furnace 3, and the ammonia produced after being oxidized Detoxified treatment, carbonic acid gas, the waste gas such as dust by exhaust pipeline a6 by oxidized still 4 introduce in spray column 7 carry out one-level spray evolve process after, remaining waste gas carries out qualified discharge after secondary absorption through activated carbon adsorber 18 again, in addition, the optimization of pipeline is utilized to arrange, by front rinse bath 1, in rear rinse bath 5 and spray column 7 spray the waste water of rear generation respectively by corresponding waste pipe a11, after waste pipe b12 and waste pipe c13 introduces and precipitates 0.5 ~ 2h in settling bath 8, the waste water on its top is introduced again in filter vat 9, be reintroduced back in spray column 7 after filter screen 10 carries out depth type filtration and make spray-water, its waste water realizing producing in nitrogen carbon oxygen Combined Processing process on the one hand carries out concentrated purifying treatment, simplify purification process technique, shorten the purifying treatment time, realize the cycling and reutilization of waste water on the other hand, energy-conserving and environment-protective, in addition, by remaining waste residue reacted in nitriding furnace 3 and oxidized still 4 and front rinse bath 1, in rear rinse bath 5, the throw out of deposition is sent in Slag treatment stove 15 respectively by corresponding waste residue transport pipe a and waste residue transport pipe b and is burned, with removing toxic substances reaction in making the toxic substance in waste residue occur under combustion conditions, to realize the minimizing of waste residue, harmless treatment, the waste gas produced that simultaneously burns carries out qualified discharge after adsorption treatment through activated carbon adsorber 18 again after carrying out spray process in exhaust pipeline b16 introducing spray column 7, circulate successively, realize waste gas, the separate type pooling of resources process of waste water and waste residue, stable system performance, failure rate is low, simple and convenient, the fittings of equipment is few and floor space is little.
The above; be only and invent preferably embodiment, but protection scope of the present invention is not limited thereto, be anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.

Claims (6)

1. a refuse processing method, comprise front cleaning, preheating, nitrogenize, oxidation, rear cleaning and air treatment section, the flue dust that described nitriding treatment part produces is introduced in oxidized still and is carried out oxidation Detoxified treatment, the waste gas that oxide treatment part produces is introduced spray column and is carried out spray process, it is characterized in that: also comprise waste water treatment section and Solid state fermentation part
(a) waste water treatment section: the waste water of front clean part and rear rinse bath treating part is introduced in settling bath and precipitates, again residue waste water is introduced after carrying out Depth Filtration in filter vat, introduce spray column and make spray-water, the waste water produced after spray, introduce in wastewater trough and filter vat again, be reintroduced back in spray column after precipitation, filtration;
(b) Solid state fermentation part: waste residue remaining after nitriding treatment part and oxide treatment partial reaction is sent into Slag treatment stove combustion 20 ~ 90min complete in and detoxification processes, and generating the gaseous mixture that ammonia, carbonic acid gas and dust form, temperature of combustion is between 800 DEG C ~ 1000 DEG C;
(c) air treatment section: the rear qualified discharge of spray column spray process introduced by gaseous mixture Solid state fermentation part produced.
2. a kind of refuse processing method according to claim 1, is characterized in that, described spray process after waste water introducing settling bath before its pH value is carried out in and regulate.
3. a kind of refuse processing method according to claim 2, is characterized in that, adds weakly acid soln, regulate waste water ph to be 6 ~ 8 in described waste water after spray process.
4. a kind of refuse processing method according to claim 1, is characterized in that, concentrated by the throw out in settling bath and filter vat and send into Slag treatment stove combustion 20 ~ 90min, temperature of combustion is between 800 DEG C ~ 1000 DEG C.
5. a kind of refuse processing method according to claim 1, is characterized in that, described waste gas after the process of one-level spray is introduced in activated carbon adsorber again and carried out secondary absorption purification.
6. a kind of refuse processing method according to claim 1, is characterized in that, the waste water after described front clean part, rear rinse bath treating part and spray introduces precipitation 0.5 ~ 2h in settling bath.
CN201610096711.2A 2016-02-22 2016-02-22 A kind of refuse processing method Active CN105568210B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106914473A (en) * 2017-04-10 2017-07-04 东华理工大学 Solid waste processing system containing gas
CN115029684A (en) * 2022-05-31 2022-09-09 四川铭能科技开发有限公司 Gas heating deposition furnace and system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104004985A (en) * 2014-06-03 2014-08-27 浙江尚鼎工业炉有限公司 Carbon-nitrogen-oxygen combined treatment process and device
CN104759178A (en) * 2015-03-16 2015-07-08 靖江新舟合金材料有限公司 Waste gas purifying spray system
CN105032890A (en) * 2015-07-07 2015-11-11 义马环保电力有限公司 Barium slag processing system and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104004985A (en) * 2014-06-03 2014-08-27 浙江尚鼎工业炉有限公司 Carbon-nitrogen-oxygen combined treatment process and device
CN104759178A (en) * 2015-03-16 2015-07-08 靖江新舟合金材料有限公司 Waste gas purifying spray system
CN105032890A (en) * 2015-07-07 2015-11-11 义马环保电力有限公司 Barium slag processing system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106914473A (en) * 2017-04-10 2017-07-04 东华理工大学 Solid waste processing system containing gas
CN115029684A (en) * 2022-05-31 2022-09-09 四川铭能科技开发有限公司 Gas heating deposition furnace and system

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Denomination of invention: A waste treatment method

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