CN208662093U - The wet method detoxifcation device systems that chromic slag harmlessness is administered - Google Patents
The wet method detoxifcation device systems that chromic slag harmlessness is administered Download PDFInfo
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- CN208662093U CN208662093U CN201820951625.XU CN201820951625U CN208662093U CN 208662093 U CN208662093 U CN 208662093U CN 201820951625 U CN201820951625 U CN 201820951625U CN 208662093 U CN208662093 U CN 208662093U
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Abstract
The utility model discloses the wet method detoxifcation device systems that a kind of chromic slag harmlessness is administered, comprising: grinding machine；Pulping tank, pulping tank entry level are lower than ball mill discharging height, so that ball mill discharging gravity flow enters pulping tank, pulping tank is equipped with Pulp pump；Souring tank, souring tank are superstructure, are connected to pulping tank by Pulp pump, multiple feed inlets are arranged in acidification upper end, and discharge port is arranged in bottom, and overflow port is arranged in the nearly top of tank wall；Neutralizing tank is restored, reduction neutralizing tank is underground structure, is connected to souring tank by gravity tank, multiple dosing mouths are arranged at the top of reduction neutralizing tank, reduction neutralizing tank is equipped with high pressure Pulp pump；Filter press, filter press are connected to reduction neutralizing tank by high pressure Pulp pump.It forms a set of stylized, standardized device systems and to live construction requirements, meets chromic wastes disposal and go on smoothly and detoxify slag requirement up to standard, complete equipment is made to greatly shorten disposal process, realize modularization, reproducible, efficient disposal system.
Description
Technical field
The utility model belongs to chromium slag contaminated recovery technique field, administers more particularly, to a kind of chromic slag harmlessness
Wet method detoxifcation device systems.
Background technique
Chromium slag be chromic salts have calcium roasting leaching step discharge containing Cr6+Solid waste, belong to heavy metal hazardous waste.Chromium
The toxicity of slag is mainly derived from Cr6+Strong oxidizing property caused by corrosion and destruction to body.Cr in chromium slag6+It is unstable, easily
Enter environment after being dissolved in acid or water, pollutes.China built up the 1st bar of chromium salt production line from 1958 so far, successively there is more than 70
Enterprise, family produced chromic salts, and the enterprise that wherein small scale, production technology fall behind all successively closes, stop, merge and shift, existing chrome salt production enterprise
25.Combine the chromium slag contaminated comprehensive improvement scheme of publication with State Environmental Protection Administration in the National Development and Reform Commission
The accumulative chromium slag that generates in the whole nation of middle statistics about exceedes 600 × 104t。
Chromium slag belongs to hazardous waste, air storage or underground and causes storing place surrounding soil and underground water without barrier landfill
Serious pollution causes very big health risk to the work of people around dirty swine, currently, the ground such as Hebei, Henan, Shandong, Gansu are successive
Carry out the processing of chromic slag wet method detoxifcation, but due to current conventional wet lay detoxification system long flow path, equipment is more, construction difficulty and cost
Height, and equipment secondary use rate is low after the completion of disposition, causes the waste of part construction investment.
Therefore, it is necessary to research and develop a kind of wet method detoxifcation device systems that chromic slag harmlessness is administered, shorten harmlessness disposing stream
Journey saves artificial and mechanical work, increases remediation efficiency, reduces treatment cost.
Utility model content
The purpose of the utility model is to provide the wet method detoxifcation device systems that a kind of chromic slag harmlessness is administered, and make chromium slag contaminated
Improvement forms a set of stylized, standardized device systems and live construction requirements, meets chromic wastes disposal trouble-free operation and removing toxic substances
Slag requirement up to standard, and realize modularization, reproducible, efficient disposal system.
To achieve the goals above, the utility model provides a kind of wet method detoxifcation device systems that chromic slag harmlessness is administered,
Include:
Ball mill；
Pulping tank, the pulping tank entry level are lower than the ball mill discharging height, so that the ball mill discharging is certainly
Stream enters the pulping tank, and the pulping tank is equipped with Pulp pump；
Souring tank, the souring tank are superstructure, are connected to the pulping tank, the souring tank by the Pulp pump
Multiple feed inlets are arranged in top, and discharge port is arranged in bottom, and overflow port is arranged in the nearly top of tank wall；
Neutralizing tank is restored, the reduction neutralizing tank is underground structure, is connected to the souring tank by gravity tank, described to go back
Multiple dosing mouths are set at the top of former neutralizing tank, and the reduction neutralizing tank is equipped with high pressure Pulp pump；
Filter press, the filter press are connected to the reduction neutralizing tank by the high pressure Pulp pump.
Preferably, the acidification tank is industrial enamel or carbon steel lining plastic material.
Preferably, the Pulp pump and the high pressure Pulp pump are the corrosion-resistant Pulp pump of high chromium, and scene is equipped with stand-by pump.
Preferably, it is carbon steel lining plastic or steel reinforced concrete lining plastic that the reduction, which neutralizes the material of tank,.
It preferably, further include pipeline and valve, the pipe in the wet method detoxifcation device systems that the chromic slag harmlessness is administered
The material in road is 304 stainless steels or carbon steel, and the material of the valve is 304 stainless steels or 316 stainless steels.
Preferably, the construction of platform of the filter press is greater than transport height at a distance from ground below.
Preferably, the ball mill is rolling bearing overflow ball mill, and the filter press is van-type plate and frame filter press.
Preferably, the pulping tank, souring tank, reduction neutralizing tank are equipped with agitating device.
Preferably, the pulping tank, souring tank, reduction neutralizing tank top are equipped with service ports and spare mouth.
Preferably, evacuation port is arranged in the nearly bottom of the souring tank tank wall, for tank body maintenance or the emptying of complete working hour, institute
Souring tank top of the tank is stated equipped with gauge port.
The utility model has the beneficial effects that: the wet method detoxifcation device systems that the chromic slag harmlessness is administered are to reduce pipeline
And the failures such as blocking, corrosion of pump occur, and reduce the use of pipeline to the full extent, equipment height difference is made full use of to take slurry
Gravity flow form, simplification of flowsheet improve disposal efficiency and ability；Fully consider device temperature, the acid during wet method detoxifcation
The parameters such as alkali tolerance and wear-resisting property, propose corresponding material to long-term disposal facility and short-term disposal facility and parameter are wanted
It asks；Multiple feed inlets and dosing mouth are set, it is inconvenient to solve the problems, such as that material addition and medicament are prepared；Save artificial mechanism work
Industry makes chromium slag contaminated improvement form a set of stylized, standardized device systems and to live construction requirements, meet chromic wastes disposal
It goes on smoothly and requirement that the slag that detoxifies is up to standard, complete equipment is made to greatly shorten disposal process, realize modularization, reproducible, efficient
Disposal system.
Other features and advantages of the utility model will then part of the detailed description can be specified.
Detailed description of the invention
The utility model illustrative embodiments are described in more detail in conjunction with the accompanying drawings, the utility model it is upper
It states and other purposes, feature and advantage will be apparent, wherein in the utility model illustrative embodiments, phase
Same reference label typically represents same parts.
Fig. 1 shows the wet method detoxifcation device systems that the chromic slag harmlessness of one embodiment according to the present utility model is administered
Structural schematic diagram.
Fig. 2 shows the wet method detoxifcation device systems that the chromic slag harmlessness of one embodiment according to the present utility model is administered
Material operational flow diagram.
Description of symbols
1, ball mill；2, pulping tank；3, Pulp pump；4, souring tank；5, feed inlet；6, discharge port；7, overflow port；8, it restores
Neutralizing tank；9, gravity tank；10, dosing mouth；11, high pressure Pulp pump；12, filter press；13, agitating device；14, service ports；15, standby
With mouth；16, gauge port；17, evacuation port；18, recirculated water；
Specific embodiment
Preferred embodiments of the present invention are described in more detail below.Although the following describe the utility model
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the utility model without the implementation that should be illustrated here
Mode is limited.On the contrary, thesing embodiments are provided so that the utility model is more thorough and complete, and can be by this
The range of utility model is completely communicated to those skilled in the art.
The wet method detoxifcation device systems that a kind of chromic slag harmlessness according to the present utility model is administered, comprising:
Ball mill；
Pulping tank, pulping tank entry level are lower than ball mill discharging height, so that ball mill discharging gravity flow enters pulping tank,
Pulping tank is equipped with Pulp pump；
Souring tank, souring tank are superstructure, are connected to pulping tank by Pulp pump, multiple chargings are arranged in acidification upper end
Mouthful, discharge port is arranged in bottom, and overflow port is arranged in the nearly top of tank wall；
Neutralizing tank is restored, reduction neutralizing tank is underground structure, is connected to souring tank, reduction neutralizing tank top by gravity tank
Multiple dosing mouths are set, and reduction neutralizing tank is equipped with high pressure Pulp pump；
Filter press, filter press are connected to reduction neutralizing tank by high pressure Pulp pump.
Specifically, device height difference is made full use of to take slurry gravity flow form in device systems, simplification of flowsheet is reduced
The plugging fault of pipeline and pump.
Preferably, acidification tank is industrial enamel or carbon steel lining plastic material.
Specifically, the pH value of reaction system is adjusted to 3-5 since the concentrated sulfuric acid or dilute sulfuric acid to be added in the tank body,
Tank body material is industrial enamel or carbon steel lining plastic.
Preferably, Pulp pump and the high pressure Pulp pump are the corrosion-resistant Pulp pump of high chromium, and scene is equipped with spare
Pump.
Specifically, it when blocking or other failures occur for live Pulp pump, can replace in time, when preventing device systems from shutting down
Between it is too long, influence treatment effeciency and processing result.
Preferably, it is carbon steel lining plastic or steel reinforced concrete lining plastic that reduction, which neutralizes the material of tank,.
Specifically, it needs to be that the acid slurries of 3-5 adjust the alkalinity for being 8.0-9.0 to pH value by pH value in reductive jar
Slurries, therefore the material of tank body is carbon steel lining plastic or steel reinforced concrete lining plastic.
It preferably, further include pipeline and valve in the wet method detoxifcation device systems that chromic slag harmlessness is administered, it is described
The material of pipeline is 304 stainless steels or carbon steel, and the material of the valve is 304 stainless steels or 316 stainless steels.
Specifically, the concentrated sulfuric acid or dilute sulfuric acid pipeline select 304 stainless steel materials；Other pharmaceutical pipelines select carbon steel material,
To reduce engineering cost；Valve selects 304 stainless steels or 316 stainless steels, prevents the evaporating, emitting, dripping or leaking of liquid or gas in system operation from occurring.
Preferably, the construction of platform of filter press is greater than transport height at a distance from ground below.
Specifically, transport vehicle can be directly entered below platform, be transported outward in time convenient for removing toxic substances slag mud cake.
Preferably, ball mill is rolling bearing overflow ball mill, and the filter press is van-type plate and frame filter press.
Preferably, pulping tank, souring tank, reduction neutralizing tank are equipped with agitating device.
Preferably, pulping tank, souring tank, reduction neutralizing tank top are equipped with service ports and spare mouth.
Preferably, evacuation port is arranged in the nearly bottom of souring tank tank wall, empties for tank body maintenance or complete working hour,
The souring tank top of the tank is equipped with gauge port.
When specifically used, chromium slag is ground to the particle of 150-200 mesh partial size first with ball mill, particle utilizes height
Chromium slag particle and water are mixed into the alkaline slurry that mass ratio is about 1:1, utilize slurry by difference from pulping tank, pulping tank is flowed into
Pump pumps out the chromium slag homogenate in pulping tank to souring tank, and sulfuric acid is added in chromium slag homogenate using feed inlets other on souring tank
Chromium slag is acidified dissolution Cr VI, the slurry with hexavalent chromium solution flows into reduction neutralizing tank by gravity tank in souring tank,
The reproducibilities such as ferrous sulfate or vulcanized sodium, sodium pyrosulfite medicament, which is first added, in reduction neutralizing tank will dissolve out Cr VI in souring tank
Chromium slag starch reduction and detoxication, sodium hydroxide solution, white lime or paper white sludge solution is then added by acid reaction system tune
The whole alkaline system for being 8.0-9.0 to pH value, the trivalent chromium settlement that will be reduced into are completed removing toxic substances using high pressure Pulp pump
Chromium slag stock pump go out to filter press, filters pressing is a removing toxic substances blob of slag, then is transported by transport vehicle.The medicament added in souring tank is sulfuric acid,
It tank car can be used is pumped into or is arranged ground horizontal tank and be pumped into；It is reproducibility medicament (solid powder that medicament is added in reduction neutralizing tank
Or liquid) and basic agent (solid powder or liquid), ground flat belt pan feeding mode can be used, reduce equipment and artificial throwing
Enter.
The wet method detoxifcation device systems that the chromic slag harmlessness is administered save artificial mechanism operation, make chromium slag contaminated improvement shape
At a set of stylized, standardized device systems and to live construction requirements, meets chromic wastes disposal and go on smoothly and detoxify slag and reach
Target requirement, makes complete equipment greatly shorten disposal process, realizes modularization, reproducible, efficient disposal system.
Embodiment
Fig. 1 shows the wet method detoxifcation device systems that the chromic slag harmlessness of one embodiment according to the present utility model is administered
Structural schematic diagram；The wet method detoxifcation administered Fig. 2 shows the chromic slag harmlessness of one embodiment according to the present utility model is set
The material operational flow diagram of standby system.This device systems is according to 30t/h processing capacity Aided design, in project implementation application,
Reasonable disposition can be carried out according to actual requirement.
As shown in Figure 1 to Figure 2, the wet method detoxifcation device systems which administers, comprising:
Rolling bearing overflow ball mill 1, pulping tank 2,2 entry level of pulping tank are lower than 1 discharge height of ball mill, make
The discharging gravity flow of ball mill 1 enters in pulping tank 2, pulping tank 2 by Pulp pump 3 and pipeline and valve respectively with four grounds
The souring tank 4 of structure connects, and three feed inlets 5 and gauge port 16 is arranged in 4 top of souring tank, and discharge port 6, tank body side is arranged in bottom
Overflow port 7 is arranged in the nearly top of wall, and side-wall near-bottom portion is equipped with the evacuation port 17 for tank body maintenance or the emptying of complete working hour, four acid
The discharge port 6 for changing tank 4 is connected to the reduction neutralizing tank 8 of underground structure by gravity tank 9, restores and is arranged two at the top of neutralizing tank 8
A dosing mouth 10, reduction neutralizing tank 8 are connected to three van-type plate and frame filter press 12, van-type plate compression by high pressure Pulp pump 11
12 construction of platform of machine is greater than transport height at a distance from ground below.
Wherein, pulping tank 2, souring tank 4, reduction neutralizing tank 8 in be equipped with agitating device 13, top is equipped with service ports 14
And spare mouth 15.
Rolling bearing overflow ball mill 1 is the special equipment for grinding chromium slag particle to 150-200 mesh, model used
GMY2275, maximum ball load 42.5t, revolving speed 21r/min, cylinder main material Q235B, steel plate thickness 22mm.Liner material quality
ZGMn13, mating drum type dispenser, speed reducer is international trade.Material into ball mill process is to be crushed to averagely by pretreatment
Partial size 35mm and following material, due to including the working measures such as wet screening, watering and lowering dust, pan feeding humidity in pretreatment process.It is required that
Ball mill discharging 150-200 mesh material is not less than 90%.
Pulping tank 2 is the tank body of cylindrical strip agitating device, and since ball mill discharging is chromium slag: water quality is than being about 1:1
Slurries, and in alkalinity, the material of pulping tank may be selected carbon steel, stainless steel, industrial enamel or tank interior lining plastic (glass reinforced plastic or
PP, lining plastic thickness are not less than 10mm).Slurrying tank volume should be flux matched with ball mill discharging amount and rear end pumping, having a size of φ
4000 × 3500, ground height 1500mm, subterranean depth 2000mm enter pulping tank convenient for ball mill discharging gravity flow.To guarantee
The adequacy of stirring, agitator motor select power to be not less than 22kw.
Pulp pump 3 is the corrosion-resistant Pulp pump of high chromium, parameter Q=100m3/ h, H=25m, since pulping tank is semi-underground
Structure, if scene can provide underground pump house, which may be selected horizontal pump, if scene can not provide pump house, the slurry
Pump selection submerged pump form.Scene setting the using and the reserved two.
Souring tank 4 is that four ground bands of scene setting stir round Storage Tank, due to be added in the tank body concentrated sulfuric acid or
The pH of reaction system is adjusted to 3-5 by dilute sulfuric acid, thus tank body be industrial enamel or carbon steel lining plastic (if acidification medicament is the concentrated sulfuric acid,
Should then test in advance and add temperature, liner plate is prevented to be thermally deformed removing), tank body size suggests φ 5000 × 6500, allly
Upper structure, feed inlet are tank deck, and discharge port is not higher than 150mm apart from tank bottom height.
The round Storage Tank that neutralizing tank 8 is underground structure is restored, ground souring tank is connected and underground reduction neutralizing tank is ground
Groove structure (armored concrete, internal lining plastic) up to underground restores in neutralizing tank and ferrous sulfate or vulcanized sodium, coke is first added
The chromium slag that Cr VI is dissolved out in souring tank is starched reduction and detoxication by the reproducibilities such as sodium sulfite medicament, and it is molten that sodium hydroxide is then added
Liquid, white lime or paper white sludge solution adjust acid reaction system to 8.0-9.0, and it is heavy that the trivalent chromium being reduced into is stablized
It forms sediment.Therefore, for the intracorporal reaction system pH of the tank from acid to alkaline, the material of tank body is carbon steel lining plastic or steel reinforced concrete lining plastic.Reduction neutralizes
The size of tank is φ 4000 × 6000, top of the tank can 500mm above ground level, it is anti-safely that cover board or border fence etc. is arranged in tank deck
Shield measure.
High pressure Pulp pump 11 is the high pressure Pulp pump being mounted on by reduction neutralizing tank bottom discharge port in pump house, it is desirable that outlet
Pressure is not less than 8 kilograms, and material is high-chromium wear-resistant, parameter Q=150m3/ h, H=85m, setting high pressure Pulp pump purpose be by
Slurry high-pressure pump after removing toxic substances guarantees filter press inlet pressure requirements to rear end plate and frame filter press.
Van-type plate and frame filter press 12 is the filter press of common engineer application, and since the disposition amount of chromium slag slurry is big, solid content is high,
Therefore plate and frame filter press selects area 600m2Above chamber-type press filter, quantity are 3, to meet daily construction requirement.Plate
Frame filter press suggestion is set up on the platform higher than transport vehicle carriage height or the setting of plate and frame filter press lower section falls mud pit, is convenient for
Removing toxic substances slag mud cake is transported outward in time.
Pipeline and valve selection in the system: the concentrated sulfuric acid or dilute sulfuric acid pipeline select 304 stainless steel materials；Other medicament pipes
Road selects carbon steel material, reduces engineering cost；Valve selects 304 stainless steels or 316 stainless steels, prevents in system operation
Evaporating, emitting, dripping or leaking of liquid or gas occur.
The medicament added in souring tank 4 is sulfuric acid, tank car can be used is pumped into or is arranged ground horizontal tank and is pumped into.Reduction neutralizes
It is reproducibility medicament (solid powder or liquid) and basic agent (solid powder or liquid) that medicament is added in tank 8, can be used ground
Face flat belt pan feeding mode reduces equipment and artificial investment.
As shown in Figure 1, system body layout, by ball mill 1 to plate and frame filter press 12, construction process is into 1 work of ball mill
The material of sequence is to be crushed to average grain diameter 35mm and following material by pretreatment, due to including wet screening in pretreatment process, spilling
The working measures such as water depositing dust, pan feeding may be moist.It is required that ball mill 1 discharges, 150-200 mesh material is not less than 90%.After ball milling
Chromium slag slurry be chromium slag: the slurries of water quality ratio 1:1, flow to certainly on the ground or semi-underground pulping tank 2 in, pumped by Pulp pump 3
The acidification stirring of slurries is carried out into ground souring tank 4.It is added after the acidification slurry stirring 3-4h of sufficient amount of sulfuric acid through gravity tank certainly
Stream enter underground restore neutralizing tank 8, continue stirring during be added reproducibility medicament, reaction time 1-2h, then plus
Enter basic agent and adjust pH to 8-8.5, when adjusting a length of 1-2h.The slurry for completing removing toxic substances and pH value adjustment passes through high pressure slurry
11 pump of pump to plate and frame filter press 12 is dehydrated, and the removing toxic substances slag mud cake of formation transports outward detection, the water reuse of filters pressing to pulping tank 2, acidification
It is recycled in tank 4 and medicament compounding system.
Wherein, souring tank 4 is calculated as top feed, bottom discharge, feed inlet 5 include slurry feed inlet, sulfuric acid feed inlet, from
Water feed inlet additionally includes spare mouth 15, gauge port 16 (for installation on-line monitoring pH meter and liquidometer).Top is simultaneously
Service ports are set, equipment repair and maintenance are used for.Overflow port is arranged in the nearly top of tank wall, prevents tank boil-overs, overflow port can be connected to acid
Change neutralizing tank or scene construction gutter.Evacuation port is arranged in the nearly bottom of tank wall, for tank body maintenance or the emptying of complete working hour.
Reduction neutralizing tank 8 equally takes top to feed, and service ports 14 and spare mouth 15 and dosing is arranged in bottom discharge, top
Mouth 10, dosing mouth 10 include reduction medicament dosing mouth, basic agent dosing mouth, and bottom discharge port connects high pressure Pulp pump 11.
Each embodiment of the utility model is described above, above description is exemplary, and non-exclusive, and
And it is also not necessarily limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for
Many modifications and changes are obvious for those skilled in the art.
Claims (10)
1. the wet method detoxifcation device systems that a kind of chromic slag harmlessness is administered, which is characterized in that the wet process that the chromic slag harmlessness is administered
Detoxifying equipment system includes:
Ball mill；
Pulping tank, the pulping tank entry level are lower than the ball mill discharging height, so that the ball mill discharging flows into certainly
Enter the pulping tank, the pulping tank is equipped with Pulp pump；
Souring tank, the souring tank are superstructure, are connected to the pulping tank, the acidification upper end by the Pulp pump
Multiple feed inlets are set, and discharge port is arranged in bottom, and overflow port is arranged in the nearly top of tank wall；
Neutralizing tank is restored, the reduction neutralizing tank is underground structure, the souring tank is connected to by gravity tank, in the reduction
Multiple dosing mouths are set with tank top, the reduction neutralizing tank is equipped with high pressure Pulp pump；
Filter press, the filter press are connected to the reduction neutralizing tank by the high pressure Pulp pump.
2. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the acidification
Tank is industrial enamel or carbon steel lining plastic material.
3. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the slurry
Pump and the high pressure Pulp pump are the corrosion-resistant Pulp pump of high chromium, and scene is equipped with stand-by pump.
4. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the reduction
The material for neutralizing tank is carbon steel lining plastic or steel reinforced concrete lining plastic.
5. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the chromium slag
It further include pipeline and valve in the wet method detoxifcation device systems of innoxious governance, the material of the pipeline is 304 stainless steels or carbon
Steel, the material of the valve are 304 stainless steels or 316 stainless steels.
6. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the filters pressing
The construction of platform of machine is greater than transport height at a distance from ground below.
7. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the ball milling
Machine is rolling bearing overflow ball mill, and the filter press is van-type plate and frame filter press.
8. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the slurrying
Tank, souring tank, reduction neutralizing tank are equipped with agitating device.
9. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the slurrying
Tank, souring tank, reduction neutralizing tank top are equipped with service ports and spare mouth.
10. the wet method detoxifcation device systems that chromic slag harmlessness according to claim 1 is administered, which is characterized in that the acid
Change tank side-wall near-bottom portion and evacuation port is set, is equipped with for tank body maintenance or the emptying of complete working hour, the souring tank top of the tank
Gauge port.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112718806A (en) * | 2020-12-31 | 2021-04-30 | 福建省固体废物处置有限公司 | Disposal device and method for degrading organic matters of landfill materials |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112718806A (en) * | 2020-12-31 | 2021-04-30 | 福建省固体废物处置有限公司 | Disposal device and method for degrading organic matters of landfill materials |
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