CN205999343U - The zero-discharge treatment system of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage - Google Patents
The zero-discharge treatment system of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage Download PDFInfo
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- CN205999343U CN205999343U CN201621027601.2U CN201621027601U CN205999343U CN 205999343 U CN205999343 U CN 205999343U CN 201621027601 U CN201621027601 U CN 201621027601U CN 205999343 U CN205999343 U CN 205999343U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Abstract
This utility model is related to a kind of zero-discharge treatment system of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage, belongs to environmental protection technical field.This system includes material storage device, pretreatment and supply unit, heater, supercritical water gasification reactor, regenerator, Separate System of Water-jet, sedimentation tank, biological processing unit, Sewage advanced treatment and the recycling unit being sequentially connected.This system not only achieves the zero discharge treatment of high-concentration hardly-degradable organic hazardous garbage, and shorten the response time under high-temperature and high-pressure conditions for the supercritical water gasification consersion unit, reduce equipment corrosion, extend the life-span of supercritical water reaction apparatus, reduce cost of investment, application prospect is extremely wide.
Description
Technical field
This utility model belongs to environmental protection technical field, is related to a kind of supercritical water gasification method joint Biochemical method high
The zero-discharge treatment system of concentration difficult degradation organic hazardous garbage.
Background technology
Hazardous waste refers to the one kind such as corrosivity, acute toxicity, Leaching, reactivity, infectiousness, radioactivity and one
Plant the waste of above hazard profile, its management and intractability are big, cause serious harm to human health and environment." ten
Two or five ", since planning, national policy aspect gradually payes attention to dangerous waste disposal, and relevant authorities have formulated hazardous waste mesh
Record；Establish hazardous waste and centrally dispose fee system, promote a series of economic policy such as industrialization of dangerous waste disposal
Formulation and the useless treatment industry of danger development.According to measuring and calculating, the hazardous waste disposal investment of the coming five years China will reach 15,000,000,000 yuan.
Process to danger wastes mainly has the methods such as solidification, burning and landfill both at home and abroad at present, but these methods still can not be complete
Efficiently, economic process hazardous waste and do not produce secondary pollution, particularly high-concentration hardly-degradable organic liquid danger wastes,
Its processing cost and danger are high, easily produce secondary pollution in processing procedure.Research and development high-concentration hardly-degradable organic hazardous
Garbage zero discharge treatment technology is a focus and the difficult point of current useless process field of endangering.
Supercritical gasification technology refers to using the water (temperature under in a supercritical state：374.2 DEG C, pressure 22.1MPa)
As reaction medium, organic pollution depth degradation is the inorganic substances such as carbon dioxide, water, its response speed is fast, can be several
Second degrading high concentration difficult degradation organic hazardous garbage within a few minutes, treatment effeciency is high.But compared to other organic contaminations
Thing, supercritical water gasification technology requires higher to the degradation condition of ammonia nitrogen, and not only organic pollution to be extended is in the reactor
The time of staying, and for the complicated ammonia nitrogen class material of chemical constitution, need to add catalyst or oxidation in supercritical water
Agent, and the addition of catalyst and oxidant, can cause the corrosion of equipment and increase processing cost.Bioanalysises be a kind of ripe,
Effectively denitrogenation technology, its range is wide, suitable large-scale application, and processing cost is low, therefore, the appropriate knot of both technology
Close, thoroughly can process high-concentration hardly-degradable organic hazardous garbage at low cost, actual in conjunction with engineering, at biology
The draining managed carries out recycling after advanced treating, it is possible to achieve the zero-emission recycling treatment of danger wastes.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of supercritical water gasification method joint Biochemical method highly concentrated
The zero-discharge treatment system of degree difficult degradation organic hazardous garbage, this system being capable of green high-efficient ground, at low cost, thoroughly degrade
High-concentration hardly-degradable organic hazardous garbage, and realize zero-emission and recycling.
For reaching above-mentioned purpose, this utility model provides following technical scheme：
At a kind of zero-emission of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage
Reason system, this system includes material storage device, pretreatment and supply unit, heater, the supercritical water gasification being sequentially connected
Reactor, regenerator, Separate System of Water-jet, sedimentation tank, biological processing unit, Sewage advanced treatment and recycling unit；
Described material storage device is storage bin, and described pretreatment and supply unit include the material system with slurry being sequentially connected
System and plunger displacement pump；Described biological processing unit includes the AO pond being sequentially communicated and MBR membrane reactor, described Sewage advanced treatment and
Recycling unit includes the film processing system being sequentially communicated and soft water system；
The air mixture that described Separate System of Water-jet is isolated is passed through heater and carries out burning heat supply, the part in sedimentation tank
Sludge reflux to material stock mixing system, discharge and be used for carrying out recycling by excess sludge；The dirt of described MBR membrane reactor retention
Mud is back to AO pond, and the partial drainage of MBR membrane reactor is back to material stock mixing system, and residual drainage enters Sewage advanced treatment
With recycling unit.
This systematic difference flow process is as follows：
S1：After with slurry for high-concentration hardly-degradable organic hazardous garbage, supercritical water gasification reaction is pumped into by plunger
Device, temperature be 650～700 DEG C, pressure be 25～30MPa airtight condition under react 2～3 minutes, reaction terminate after,
It is cooled to 50 DEG C in regenerator afterwards, enter Separate System of Water-jet and carry out aqueous vapor separation；
S2：The air mixture that step S1 is isolated is passed through heater and carries out burning heat supply；
S3：The grain slag mixture that step S1 is isolated enters sedimentation tank and staticly settles 1 hour, by the pH of sedimentation tank supernatant
After being transferred to 5～7, send into AO biochemistry pool and carry out biology aerobic anaerobism alternate treatment, the liquid after AO biochemistry pool is processed enters MBR
(film-bioreactor, Membrane Bio-Reactor, MBR) membrane reactor is processed further；
S4：The water that step S3 is discharged carries out advanced treating with membrane separation process, and the water after process enters soft water system, for pot
Stove heat supply.
The beneficial effects of the utility model are：
1) this utility model synthesis supercritical water gasification method and bioanalysises both feature, initially with supercritical water gasification
High-concentration hardly-degradable organic hazardous offal treatment is carried out denitrogenation processing by method to a certain extent, then using bioanalysises, shortens
In the response time under high-temperature and high-pressure conditions for the supercritical water gasification consersion unit, significantly improve treatment effeciency, reduce equipment
Corrosion, reduces cost.
2) it is to meet the demand that in specific engineering practice, sewage recycling utilizes, this utility model adopts membrane separation process opposite
A part of waste water after thing is processed carries out advanced treating so as to reach boiler feed water standard, and for boiler heat supplying, another part gives up
Water is back to material stock mixing system, with slurry for material, thoroughly achieves the recycling of waste water.
3) it is the energy self-balancing realizing high-concentration hardly-degradable organic hazardous castoff processing system, this utility model will surpass
The air mixture that critical gasification reaction produces is fed through heater, as the supplementary fuel of mixing combustion heater, makes full use of
The energy that system itself produces, it is to avoid the waste of the energy.
Brief description
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, this utility model provides as follows
Accompanying drawing illustrates：
The system structure diagram that Fig. 1 is adopted by this utility model；
Wherein：1- material bin, 2- material stock mixing system, 3- plunger displacement pump, 4- heater, 5- supercritical water gasification reactor,
6- regenerator, 7- Separate System of Water-jet, 8- sedimentation tank, 9-AO pond, 10-MBR pond, 11- film processing system, 12- soft water system.
Specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in figure 1, the difficult fall of a kind of supercritical water gasification method joint Biochemical method high concentration that this utility model provides
The zero-discharge treatment system of solution organic hazardous garbage, including the material storing being sequentially connected, pretreatment and supply unit, heating
Device 4, supercritical water gasification reactor 5, regenerator 6, Separate System of Water-jet 7, sedimentation tank 8, biological processing unit, waste water advanced place
Reason and recycling unit.The air mixture that Separate System of Water-jet 7 is isolated is passed through heater and carries out burning heat supply, sedimentation tank
Partial sludge in 8 is back to material stock mixing system, excess sludge recycling.
Material storing, pretreatment and supply unit include storage bin 1, material stock mixing system 2 and the plunger displacement pump being sequentially connected
3.Biological processing unit includes the AO pond 9 being sequentially communicated and MBR pond 10, the sludge reflux of MBR film retention to AO pond 9, MBR pond
Partial drainage is back to material stock mixing system, and residual drainage enters Sewage advanced treatment and recycling unit, waste water advanced
Process and recycling unit includes film processing system 11 and soft water system 12.
In the present embodiment, design influent COD is 30000mg/L, and pH is 5.5, and the operation principle of this system is：
1) storage of raw material, pretreatment and conveying：After high-concentration hardly-degradable organic hazardous garbage is with slurry, by plunger displacement pump
It is fed sequentially into heater and supercritical water gasification reactor.
2) supercritical water gasification：High-concentration hardly-degradable organic hazardous garbage is heated, after pressurization, send into supercritical aqueous vapor
Change reactor, the temperature in reactor is maintained at 700 DEG C about, in 25-30MPa, the response time is 2 minutes to pressure limit.
3) gas-liquid separation：What described Separate System of Water-jet gas outlet isolated is the mixing of hydrogen, methane and vapor
Combustion gas, air mixture is passed through heater and carries out burning heat supply；Mud and the fluid-mixing of water that liquid outlet is isolated.
4) carry out a biological disposal upon：The fluid liquid that described Separate System of Water-jet is isolated initially enters sedimentation tank and carries out quenched, general
PH value is adjusted to neutrality.After standing a period of time, sedimentation tank supernatant enters AO pond and carries out denitrogenation processing, and at the bottom of pond partial sludge flows back
To material stock mixing system, excess sludge recycling.The water processing through AO pond, entrance MBR pond carries out quick muddy water and divides
From the retention of, MBR film sludge reflux to AO pond, to ensure that there is the Biomass of abundance in AO pond.MBR pond partial drainage is back to material
Stock mixing system, uses water as with slurry.
5) remaining sewage that MBR pond is discharged enters after film processing system carries out advanced treating and enters soft water system, as pot
Stove supplies water.
Finally illustrate, preferred embodiment above only in order to the technical solution of the utility model to be described and unrestricted, to the greatest extent
Gutron is crossed above preferred embodiment and this utility model is described in detail, but those skilled in the art should manage
Solution, can make various changes, in the form and details without departing from this utility model claims institute to it
The scope limiting.
Claims (1)
1. a kind of zero discharge treatment of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage
System it is characterised in that：Material storage device that this system includes being sequentially connected, pretreatment and supply unit, heater, super face
The water reactor in boundary, regenerator, Separate System of Water-jet, sedimentation tank, biological processing unit, Sewage advanced treatment and resource profit
Use unit；
Described material storage device is storage bin, described pretreatment and supply unit include the material stock mixing system being sequentially connected and
Plunger displacement pump；Described biological processing unit includes the AO pond being sequentially communicated and MBR membrane reactor, described Sewage advanced treatment and resource
Change film processing system and the soft water system that range site includes being sequentially communicated；
The air mixture that described Separate System of Water-jet is isolated is passed through heater and carries out burning heat supply, the partial sludge in sedimentation tank
It is back to material stock mixing system, excess sludge is discharged and is used for carrying out recycling；The mud of described MBR membrane reactor retention returns
It flow to AO pond, the partial drainage of MBR membrane reactor is back to material stock mixing system, and residual drainage enters Sewage advanced treatment and money
Source range site.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027601.2U CN205999343U (en) | 2016-08-31 | 2016-08-31 | The zero-discharge treatment system of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027601.2U CN205999343U (en) | 2016-08-31 | 2016-08-31 | The zero-discharge treatment system of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage |
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| CN205999343U true CN205999343U (en) | 2017-03-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221811A (en) * | 2016-08-31 | 2016-12-14 | 重庆赛迪热工环保工程技术有限公司 | The zero-discharge treatment system of supercritical water gasification method associating Biochemical method high-concentration hardly-degradable organic hazardous garbage and method |
| CN107879422A (en) * | 2017-11-03 | 2018-04-06 | 天津市瑞德赛恩水业有限公司 | A kind of new type water ecological recycle system |
| CN111499099A (en) * | 2020-04-23 | 2020-08-07 | 广东创欣环境资源有限公司 | Comprehensive harmless zero-emission treatment system for medical wastes |
-
2016
- 2016-08-31 CN CN201621027601.2U patent/CN205999343U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221811A (en) * | 2016-08-31 | 2016-12-14 | 重庆赛迪热工环保工程技术有限公司 | The zero-discharge treatment system of supercritical water gasification method associating Biochemical method high-concentration hardly-degradable organic hazardous garbage and method |
| CN107879422A (en) * | 2017-11-03 | 2018-04-06 | 天津市瑞德赛恩水业有限公司 | A kind of new type water ecological recycle system |
| CN111499099A (en) * | 2020-04-23 | 2020-08-07 | 广东创欣环境资源有限公司 | Comprehensive harmless zero-emission treatment system for medical wastes |
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