CN108787700A - The method and apparatus of residue stabilization, sealing, stabilisation and removing toxic substances containing metal - Google Patents
The method and apparatus of residue stabilization, sealing, stabilisation and removing toxic substances containing metal Download PDFInfo
- Publication number
- CN108787700A CN108787700A CN201810502963.XA CN201810502963A CN108787700A CN 108787700 A CN108787700 A CN 108787700A CN 201810502963 A CN201810502963 A CN 201810502963A CN 108787700 A CN108787700 A CN 108787700A
- Authority
- CN
- China
- Prior art keywords
- waste residue
- reaction
- residue
- insoluble matter
- stabilisation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Abstract
The present invention proposes a kind of residue stabilization, sealing, stabilisation and the method and apparatus of removing toxic substances containing metal, by the way that acid and alkali reaction agent is added into waste residue solution；The solution after reaction is filtered herein after acid and alkali reaction agent reacts generation precipitation with the part heavy metal generation in waste residue, the precipitation of generation is filtered；Solution after reaction is adjusted PH to be placed in high temperature drying device；Waste residue after drying inputs thermal reaction area；Temperature waste residue is risen in thermal reaction area and insoluble matter is dried, so that fractional object volatilizes in gaseous form, and is collected at the tail gas collecting device of thermal reaction area；Waste residue and insoluble matter after thermal reaction area is dried continue to be transferred into curing area, and curing agent is added and cures to waste residue and insoluble matter；To after solidification waste residue and insoluble matter seal up for safekeeping.Method using the present invention realizes to the optimization processing of waste residue heavy metal, reduces in waste residue heavy metal to the pollution of environment.
Description
Technical field
The invention belongs to kind of metal combined contamination Treatment process field more particularly to a kind of residue stabilization containing metal, envelopes
Gu, stabilize and removing toxic substances method and apparatus.
Background technology
Heavy metal pollution has become one of the environmental problem that current area is maximum, harm is most wide, and environment neck at present
The hot spot of domain research.Heavy metal is different from other pollutants, once it enters in the environment such as waste residue or soil, it is difficult to by going
It removes, can be enriched with instead, or be converted into the compound of toxicity bigger.Under normal circumstances, heavy metal pollution will not be certain single
A kind of element pollution is all the combined pollution for entering waste residue or Zinc fractions in the form of inorganic and organic mixture.With much money
It is poor to belong to the mobility in waste residue or soil, is easy to be detained in the soil.Into after people's animal and plant body, incubation period compared with
It is long, seriously affect health and the existence of the mankind.
With the aggravation of urbanization, the serious factory of partial contamination is because enlargement of cities and environmental improvement are forced to move, especially
It is some metal smelt industries, the processing from the production process of product to waste pollutant can all pollute ambient enviroment.
Contaminated place after resettlement can cause physics and chemistry and the biological nature variation of soil, to plant, the animal etc. to depend on for existence
Generate stimulation and physiological-toxicity.Meanwhile on the one hand the pollutant accumulated in soil can be enriched with by food chain finally to the mankind
Health generates harm, and larger carcinogenic risk can be also generated to the resident for being directly exposed to contaminated site for a long time；On the other hand, by
Serious influence is caused in the place of pollution on groundwater environment, reduces the use function of underground water, threatens the health of resident.
For these reasons, it is necessary to propose a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal.
Invention content
The embodiment of the present invention provides a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal.
The embodiment of the present invention is achieved in that a kind of residue stabilization, sealing, stabilisation and the side of removing toxic substances containing metal
Method, described method includes following steps：
Acid and alkali reaction agent is added into waste residue solution by step S10, stands preset time；
Step S20, after acid and alkali reaction agent react with the part heavy metal generation in waste residue after generation precipitates to reaction
Solution is filtered herein, and the precipitation of generation is filtered；
Solution after reaction is adjusted PH and is placed in high temperature drying device, waits for that the solute in solution is also analysed by step S30
Go out；
Step S40, the waste residue after drying input thermal reaction area, and in thermal reaction area, waste residue and insoluble matter are done in heating
It is dry, so that fractional object volatilizes in gaseous form, and it is collected at the tail gas collecting device of thermal reaction area；
Step S50, waste residue and insoluble matter after thermal reaction area is dried continue to be transferred into curing area, and curing agent pair is added
Waste residue and insoluble matter are cured；
Step S60, to after solidification waste residue and insoluble matter seal up for safekeeping.
Preferably, the waste residue after described pair of solidification and insoluble matter are sealed up for safekeeping and specially use cement to the waste residue after solidification
It is sealed up for safekeeping with insoluble matter.
Preferably, the acid and alkali reaction agent in the step S10 includes hydrochloric acid, dilute sulfuric acid, dust technology, sodium hydroxide, hydrogen-oxygen
Change one or more in potassium.
Preferably, further include after the step S10：
Step S12 will be carried out using after curing agent solidification using cement by reacting the precipitation generated with acid and alkali reaction agent
It seals up for safekeeping.
Preferably, the curing agent includes magnesia, potassium dihydrogen phosphate, borax, iron oxide and silica；Wherein institute
State magnesia 20.0%~50.0%, potassium dihydrogen phosphate 35.0%~55.0%, borax 2.5%~10%, iron oxide 0.2%~
1%, silica 0.2%~2%.
Preferably, time waste residue and insoluble matter being dried in the step S40 be 3h, drying temperature be 300~
500℃。
Preferably, further include before the step S10：
Waste residue is made solution and is tentatively filtered to it, insoluble matter is filtered by step S11.
To achieve the above object, the present invention also proposes setting for a kind of residue stabilization containing metal, sealing, stabilisation and removing toxic substances
Standby, the equipment includes pretreatment unit, reaction unit, drying device, heating device and retracting device；
The pretreatment unit is connect with the reaction unit, and the pretreatment unit is connected with the pump housing, and being used for will be pre-
Liquid in processing unit is pumped into reaction unit；
Filter plate is provided in the reaction unit, the reaction unit is connect with the drying device, and the reaction
Device is connected with the pump housing for being pumped into the liquid in reaction unit in the drying device；
The drying device is provided with discharge port close to the side of the heating device, and the heating device is then arranged therewith
Corresponding feed inlet is delivered to heating device to the waste residue after will be dry in drying device, and the drying device is connected with tail
Gas collection device；The heating device is connect with the retracting device, and the heating device is connected with the tail gas recycle dress
It sets.
Preferably, the reaction unit is connected with charging device, for putting into acid and alkali reaction agent in reaction unit.
The method of the present invention stands preset time by the way that acid and alkali reaction agent is added into waste residue solution；Wait for acid and alkali reaction
Agent is filtered the solution after reaction after reacting generation precipitation with the part heavy metal generation in waste residue herein, will generate
Precipitation is filtered；Solution after reaction is adjusted PH to be placed in high temperature drying device, waits for that the solute in solution is also precipitated；It is dry
Waste residue after dry enters thermal reaction area together with the insoluble matter at preliminary Filtration Filtration；Temperature waste residue and insoluble is risen in thermal reaction area
Object is dried, so that fractional object volatilizes in gaseous form, and is collected at the tail gas collecting device of thermal reaction area；
Waste residue and insoluble matter after thermal reaction area is dried continue to be transferred into curing area, and curing agent is added and is carried out to waste residue and insoluble matter
Solidification；To after solidification waste residue and insoluble matter seal up for safekeeping.Method using the present invention is realized to the optimization of waste residue heavy metal
Reason reduces in waste residue heavy metal to the pollution of environment.
Description of the drawings
Fig. 1 is a kind of residue stabilization, sealing, stabilisation and the equipment of removing toxic substances containing metal of the embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present invention proposes a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal, it is intended to which it is a kind of right to propose
Heavy metals immobilization in waste residue seals efficient method up for safekeeping.
Described method includes following steps：
Waste residue is made solution and is tentatively filtered to it, insoluble matter is filtered by step S11；
Acid and alkali reaction agent is added into waste residue solution by step S10, stands preset time；
Step S20, after acid and alkali reaction agent react with the part heavy metal generation in waste residue after generation precipitates to reaction
Solution is filtered herein, and the precipitation of generation is filtered；
Solution after reaction is adjusted PH and is placed in high temperature drying device, waits for that the solute in solution is also analysed by step S30
Go out；
Step S40, the waste residue after drying enter thermal reaction area together with the insoluble matter at preliminary Filtration Filtration；In thermal response
Area rises temperature waste residue and insoluble matter is dried, so that fractional object volatilizes in gaseous form, and in the tail of thermal reaction area
It is collected at gas collection device；
Step S50, waste residue and insoluble matter after thermal reaction area is dried continue to be transferred into curing area, and curing agent pair is added
Waste residue and insoluble matter are cured；
Step S60, to after solidification waste residue and insoluble matter seal up for safekeeping.
Specifically, in the present embodiment, solution first is made in waste residue, i.e., water is added wherein, at this time part heavy metal ion
Will be soluble in water, become heavy metal ion.And it is not soluble in water will be filtered away with waste residue, the waste residue object that this Partial filtration is gone out
Matter will the heat drying the step of in be dried.And waste residue solution will then be made by the way that chemical reactor is added into it in it
Part heavy metal ion react with reactant ion, the substance after partial reaction is precipitation, so before being reacted,
It includes that the heavy metal in waste residue can be understood in advance specifically for which heavy metal substance, and then can be by reactant is targetedly added.Such as,
If sulfate ion can be added in baric in heavy metal, it is made to generate barium sulfate precipitate；If chlorine can be added in argentiferous in heavy metal
Ion makes it generate silver nitride precipitation, etc..After waste residue solution is reacted, the precipitation of generation is filtered, and it is filtered clear
Solution then further by its pH value adjustment to neutrality, is then input in high temperature drying device by liquid, waits for the solvent quilt in solution
Evaporation, in solute be precipitated.Solute after precipitation continues to be passed to thermal reaction area, mainly further will analysis in thermal reaction area
The solute gone out is dried, and the moieties in it are volatilized in gaseous form, and in the exhaust collection of thermal reaction area
It is collected at device.Wherein, the tail gas of collection includes mainly nitrogenous, volatile organic matter etc..It is understood that tail gas is received
Acquisition means connect exhaust gas processing device, can handle the tail gas of collection, are drained into greatly after reaching exhaust emission standard
In gas.Connecting is finally transferred into curing area by the waste residue of thermal reaction area and initial filtered insoluble matter, toward solidification
Curing agent is added in area, by residue stabilization, finally seals up for safekeeping by the waste residue after solidification, heavy metal is isolated completely, hinder
Exhausted heavy metal pollution on the environment.
Wherein, it in above-mentioned steps S10, is generated by the way that acid and alkali reaction agent is added to make the ion in solution participate in reaction
Precipitation, acid and alkali reaction agent therein includes one or more in hydrochloric acid, dilute sulfuric acid, dust technology, sodium hydroxide, potassium hydroxide.
Acid and alkali reaction agent specifically can be selected according to the ingredient of advance detection heavy metal.Due to adding acid and alkali reaction agent, will change
The pH value of solution, in order to make its pH value of the solution after reaction be restored to middle character body, the pH value of the solution after first detection reaction, if
Its pH value is shown as acid, then akaline liquid is launched into it, so that the pH value of solution is restored to neutrality.Wherein, specific to launch
The number of akaline liquid can be regulated and controled according to the pH value of detection.
Wherein, include using the curing agent during curing agent is cured in the step 50：Magnesia, biphosphate
Potassium, borax, iron oxide and silica；The wherein described magnesia 20.0%~50.0%, potassium dihydrogen phosphate 35.0%~
55.0%, borax 2.5%~10%, iron oxide 0.2%~1%, silica 0.2%~2%.Preferably, the magnesia
30%, potassium dihydrogen phosphate 40%, borax 3%, iron oxide 0.4%, silica 0.6%.
Further, time waste residue and insoluble matter being dried in the step S40 is 3h~5h, and drying temperature is
300~500 DEG C.Drying time is preferably 3h in the present embodiment, and drying temperature is preferably 420 DEG C.
In addition, referring to Fig. 1, the present invention also proposes setting for a kind of residue stabilization containing metal, sealing, stabilisation and removing toxic substances
Standby, the equipment includes pretreatment unit 10, reaction unit 21, drying device 30, heating device 40 and retracting device；
The pretreatment unit 10 is connect with the reaction unit 21, and the pretreatment unit 10 is connected with the pump housing 14,
For the liquid in pretreatment unit 10 to be pumped into reaction unit 21；
Filter plate 11 is provided in the reaction unit 21, the reaction unit 21 is connect with the drying device 30, and
The reaction unit 21 is connected with the pump housing 14 for being pumped into the liquid in reaction unit 21 in the drying device 30；
By transmitting band connection between the drying device 30 and the adding apparatus；The heating device 40 with described time
Receiving apparatus connects.
The pretreatment unit 10 is used to that solution to be made in waste residue and tentatively filters it, and insoluble matter is filtered,
Filter device is provided in pretreatment unit 10, filtering can be the filter plate 11 being arranged in the pretreatment unit 10, use
The insoluble matter in waste residue solution is deposited in bottom, which can move up and down in pretreatment unit 10, will not
Molten object is pressed in bottom, and 10 bottom of the pretreatment unit is provided with outlet 13, and valve 12 is provided at outlet 13, to the bottom of by
The insoluble matter in portion is discharged.It is connected by transmission pipeline 22 between the pretreatment unit 10 and the reaction unit 21.
The pre-processing device is connect with the reaction unit 21, and the pretreatment unit 10 is connected with the pump housing 14, with
Liquid in pretreatment unit 10 is pumped into reaction unit 21.Reaction unit 21 connects charging device 20, charging device 20
Automatically reactant can be put into reaction unit 21.Pass through transfer tube between the reaction unit 21 and the drying device 30
Road 22 connects.
The drying device 30 is double-layer structure, including interior layer box body and outer-layer box body, the interior layer box body with it is described outer
Heating tube 32 is provided between layer box body, the interior layer box body is thermally conductive material, and the outer side box body is made of heat-barrier material.
Liquid after the completion of reaction unit 21 reacts is pumped into the interior layer box body of drying device 30, has heating tube 32 to add interior layer box body
Heat, so that the solvent seasoning of waste residue liquid is spilt into the gaseous state to volatilize in tail gas collecting device 31, the solute of solution is then with solid-state
It is precipitated, the side of the drying device 30 is provided with discharge port, can be collected from the discharge port by the waste residue after drying, its is defeated
It send to heating device 40, the side of heating device 40 is provided with corresponding feed inlet.
Waste residue is further dried in heating device 40, and the waste residue in heating device 40 is finally transferred to retracting device
In, curing agent is added in retracting device, waste residue is further cured finally using cement that the waste residue after solidification is further
Sealing makes the heavy metal in it that can not escape.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (9)
1. a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal, which is characterized in that the method includes such as
Lower step：
Acid and alkali reaction agent is added into waste residue solution by step S10, stands preset time；
Step S20, to the solution after reaction after acid and alkali reaction agent reacts generation precipitation with the part heavy metal generation in waste residue
It is filtered herein, the precipitation of generation is filtered；
Solution after reaction is adjusted PH and is placed in high temperature drying device by step S30, waits for that the solute in solution is precipitated；
Step S40, the waste residue after drying input thermal reaction area, and in thermal reaction area, waste residue and insoluble matter is dried in heating, with
So that fractional object is volatilized in gaseous form, and is collected at the tail gas collecting device of thermal reaction area；
Step S50, waste residue and insoluble matter after thermal reaction area is dried continue to be transferred into curing area, and curing agent is added to waste residue
Cured with insoluble matter；
Step S60, to after solidification waste residue and insoluble matter seal up for safekeeping.
2. a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal according to claim 1, feature
Be, described pair solidification after waste residue and insoluble matter sealed up for safekeeping specially use cement to after solidification waste residue and insoluble matter into
Row is sealed up for safekeeping.
3. a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal according to claim 1, feature
It is, the acid and alkali reaction agent in the step S10 includes one in hydrochloric acid, dilute sulfuric acid, dust technology, sodium hydroxide, potassium hydroxide
Kind is a variety of.
4. a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal according to claim 1, feature
It is, further includes after the step S10：
Step S12 will be sealed using after curing agent solidification using cement by reacting the precipitation generated with acid and alkali reaction agent
It deposits.
5. a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal according to claim 1, feature
It is, the curing agent includes magnesia, potassium dihydrogen phosphate, borax, iron oxide and silica；The wherein described magnesia
20.0%~50.0%, potassium dihydrogen phosphate 35.0%~55.0%, borax 2.5%~10%, iron oxide 0.2%~1%, dioxy
SiClx 0.2%~2%.
6. a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal according to claim 1, feature
It is, the time that waste residue and insoluble matter are dried in the step 40 is 3h~5h, and drying temperature is 300~500 DEG C.
7. a kind of residue stabilization, sealing, stabilisation and the method for removing toxic substances containing metal according to claim 1, feature
It is, further includes before the step S10：
Waste residue is made solution and is tentatively filtered to it, insoluble matter is filtered by step S11.
8. a kind of residue stabilization, sealing, stabilisation and the equipment of removing toxic substances containing metal, which is characterized in that the equipment includes pre-
Processing unit, reaction unit, drying device, heating device and retracting device；
The pretreatment unit is connect with the reaction unit, and the pretreatment unit is connected with the pump housing, for that will pre-process
Liquid in device is pumped into reaction unit；
Filter plate is provided in the reaction unit, the reaction unit is connect with the drying device, and the reaction unit
It is connected with the pump housing for being pumped into the liquid in reaction unit in the drying device；
The drying device is provided with discharge port close to the side of the heating device, and the heating device, which is then arranged, to be corresponding to it
Feed inlet, be delivered to heating device to the waste residue after will be dry in drying device, the drying device is connected with tail gas receipts
Acquisition means；The heating device is connect with the retracting device, and the heating device is connected with the device for recovering tail gas.
9. a kind of residue stabilization, sealing, stabilisation and the equipment of removing toxic substances containing metal according to claim 8, feature
It is, the reaction unit is connected with charging device, for putting into acid and alkali reaction agent in reaction unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502963.XA CN108787700B (en) | 2018-05-24 | 2018-05-24 | Metalliferous residue stabilization, sealing, stabilisation and the method and apparatus of removing toxic substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502963.XA CN108787700B (en) | 2018-05-24 | 2018-05-24 | Metalliferous residue stabilization, sealing, stabilisation and the method and apparatus of removing toxic substances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108787700A true CN108787700A (en) | 2018-11-13 |
| CN108787700B CN108787700B (en) | 2019-04-09 |
Family
ID=64092753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810502963.XA Active CN108787700B (en) | 2018-05-24 | 2018-05-24 | Metalliferous residue stabilization, sealing, stabilisation and the method and apparatus of removing toxic substances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108787700B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137497A (en) * | 1982-02-08 | 1983-08-15 | Ebara Infilco Co Ltd | Treatment of heavy metal-containing waste matter |
| US5087375A (en) * | 1987-10-21 | 1992-02-11 | Aggio Recovery | Method for producing insoluble industrial raw material from waste |
| CN1541969A (en) * | 2003-11-06 | 2004-11-03 | 同济大学 | Method for producing cement using burning fly ash as blending stock |
| CN101758061A (en) * | 2010-01-29 | 2010-06-30 | 清华大学 | Method for pretreating fly ash of domestic refuse incineration through cooperative disposal of cement kilns |
| CN103447283A (en) * | 2013-08-30 | 2013-12-18 | 漯河兴茂钛业股份有限公司 | Safe disposal method for waste residue produced by production of titanium tetrachloride by using titanium dioxide by chlorination process |
| CN103846267A (en) * | 2012-11-28 | 2014-06-11 | 大连东泰产业废弃物处理有限公司 | Method for processing fly ash from burning of garbage |
| CN204122439U (en) * | 2014-07-30 | 2015-01-28 | 富阳鹿山双龙化工有限公司 | For the city garbage burning flying ash resource pretreatment system of cement producting material |
| CN105327927A (en) * | 2015-11-09 | 2016-02-17 | 中国天楹股份有限公司 | Method and system for disposing incineration fly ash of household garbage |
-
2018
- 2018-05-24 CN CN201810502963.XA patent/CN108787700B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137497A (en) * | 1982-02-08 | 1983-08-15 | Ebara Infilco Co Ltd | Treatment of heavy metal-containing waste matter |
| US5087375A (en) * | 1987-10-21 | 1992-02-11 | Aggio Recovery | Method for producing insoluble industrial raw material from waste |
| CN1541969A (en) * | 2003-11-06 | 2004-11-03 | 同济大学 | Method for producing cement using burning fly ash as blending stock |
| CN101758061A (en) * | 2010-01-29 | 2010-06-30 | 清华大学 | Method for pretreating fly ash of domestic refuse incineration through cooperative disposal of cement kilns |
| CN103846267A (en) * | 2012-11-28 | 2014-06-11 | 大连东泰产业废弃物处理有限公司 | Method for processing fly ash from burning of garbage |
| CN103447283A (en) * | 2013-08-30 | 2013-12-18 | 漯河兴茂钛业股份有限公司 | Safe disposal method for waste residue produced by production of titanium tetrachloride by using titanium dioxide by chlorination process |
| CN204122439U (en) * | 2014-07-30 | 2015-01-28 | 富阳鹿山双龙化工有限公司 | For the city garbage burning flying ash resource pretreatment system of cement producting material |
| CN105327927A (en) * | 2015-11-09 | 2016-02-17 | 中国天楹股份有限公司 | Method and system for disposing incineration fly ash of household garbage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108787700B (en) | 2019-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108630335A (en) | Vacuum microwave drying system and drying means in a kind of radioactivity wet type pail for used dressings | |
| CN101921306A (en) | System and method for extracting microprotein from sludge through hydrolysis | |
| CN203541071U (en) | Mechanochemical Harmless Treatment Device for Heavy Metal Contaminated Soil | |
| CN108787700B (en) | Metalliferous residue stabilization, sealing, stabilisation and the method and apparatus of removing toxic substances | |
| CN104032138B (en) | The method of a kind of dump leaching-mercurous tailings of precipitation stabilization treatment | |
| CN102161557B (en) | Method for treating excess sludge | |
| CN108980853A (en) | Incineration of refuse flyash and percolate cooperative processing method and device | |
| CN109570185B (en) | Waste incineration fly ash reduction dechlorination method and device based on water vapor induction | |
| CN103979600A (en) | Preparation method of ultrathin copper oxide powder | |
| CN104692837A (en) | Method of comprehensively utilizing sludge | |
| CN205170590U (en) | Wastewater treatment system | |
| CN107694519A (en) | The modified activated carbon of tetrabromobisphenol A biological effectiveness in a kind of reduction contaminated soil | |
| CN109078967A (en) | A kind of aluminium electroloysis waste lining leaches liquid oxidation broken cyanide, carbon point-neutralized system | |
| ES2234298T5 (en) | PROCEDURE AND DEVICE FOR MANUFACTURING A LARGE VOLUME CONTAINER. | |
| CN208912789U (en) | A kind of aluminium electroloysis waste lining leaches liquid oxidation broken cyanide, carbon point-neutralized system | |
| JP2006339132A (en) | Method and apparatus for restoring electricity using soil fuel cell generation system | |
| CN104609512B (en) | A kind of process the device and method of hardly degraded organic substance in high-concentration waste hydrochloric acid | |
| CN209174567U (en) | The processing unit of organic matter in a kind of filtering waste residue | |
| CN105621481A (en) | Method for recovering arsenic from ecological remediation plant ciliate desert-grass | |
| CN207659163U (en) | A kind of heat-energy recovering apparatus for neutralization chamber | |
| CN106007319A (en) | Electromagnetic sludge treatment device | |
| CN206139195U (en) | System for use surplus activated sludge as production of material adsorption material | |
| CN206447716U (en) | A kind of galvanizing waste acid resource processing unit | |
| CN211035578U (en) | Leachate treatment equipment | |
| CN111020195A (en) | Method for recovering waste mercuric bromide reagent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200509 Address after: Yang Gangju Dongshe town Tongzhou District 226000 Jiangsu city of Nantong Province Patentee after: NANTONG LEER ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 413000 No. 518 Yingbin Road, Hunan, Yiyang Patentee before: Hunan City University |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226000 Yanggang Residence, Dongshe Town, Tongzhou District, Nantong City, Jiangsu Province Patentee after: Le'er Environmental Technology (Jiangsu) Co.,Ltd. Address before: 226000 Yanggang Residence, Dongshe Town, Tongzhou District, Nantong City, Jiangsu Province Patentee before: NANTONG LEER ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 226000 tanghong village, Dongshe Town, Tongzhou District, Nantong City, Jiangsu Province Patentee after: Jiangsu Le'er Environmental Technology Co.,Ltd. Address before: 226000 Yanggang Residence, Dongshe Town, Tongzhou District, Nantong City, Jiangsu Province Patentee before: Le'er Environmental Technology (Jiangsu) Co.,Ltd. |
|
| CP03 | Change of name, title or address |