CN110436713A - A kind of processing method of rotary kiln deacidifying flue gas waste liquid - Google Patents
A kind of processing method of rotary kiln deacidifying flue gas waste liquid Download PDFInfo
- Publication number
- CN110436713A CN110436713A CN201910783811.6A CN201910783811A CN110436713A CN 110436713 A CN110436713 A CN 110436713A CN 201910783811 A CN201910783811 A CN 201910783811A CN 110436713 A CN110436713 A CN 110436713A
- Authority
- CN
- China
- Prior art keywords
- waste liquid
- flue gas
- processing
- rotary kiln
- gas waste
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of processing methods of rotary kiln deacidifying flue gas waste liquid, are related to technical field of waste water processing.This method step is specific as follows: initially entering disc tube reverse osmosis (dt-ro) conditioning tank and carries out PH adjusting processing, neutralizes acids；Then waste liquid is pumped into coagulation conditioning tank, flocculant is added and carries out static coagulation, make upper layer waste water pump to surge tank, lower layer's flocculate is filtered processing, residue landfill, waste water enters the processing of disc tube reverse osmosis (dt-ro) conditioning tank together with the waste water of upper layer after filtering, concentrated water enters evaporation conditioning tank, introduce coagulating basin, flocculant flocculation is added, using separation of solid and liquid, Sludge landfill, water phase, which enters in evaporator, is evaporated processing, the steam condensation of generation is delivered to biochemical system, concentrate is under the effect of gravity, it flow to bottom concentration flow container, it is separated by solid-liquid separation again by discharge pump, finally make the salt cure generated landfill.Treatment process of the present invention is at low cost, easy to operate, does not generate secondary pollution, for promoting environmental protection to be of great significance.
Description
Technical field
The present invention relates to technical field of waste water processing, specially a kind of processing method of rotary kiln deacidifying flue gas waste liquid.
Background technique
With the progress of Chinese society, for economy also in high speed development, industry has become the pillar industry of economic development.But
Also lead to the generation of a large amount of solid waste and hazardous waste while rapid industrial development.Different from general solid waste,
Hazardous waste has the following characteristics that inflammability, reactivity, toxic, corrosivity, bioconcentration, infectiousness, carcinogenic, cause is prominent
Change, teratogenesis etc..If mishandling, it will cause to seriously endanger to the mankind and environment.
And incineration technology is the common methods of current hazardous waste processing, by burning disposal, hazardous waste is by high temperature point
Solution, germ therein are utterly destroyed, and reduced training is good, and has saved soil.In dangerous waste incineration processing system, flue gas
In contain a large amount of sour gas.Mainly there are wet process, dry method and 3 kinds of semidry method for deacidifying flue gas technique is current.
The principle that wet process takes off acid removal process is that HCl and SO is removed in scrubbing tower using alkaline absorbent2Equal sour gas
Body, alkaline absorbent used are generally NaOH solution.Wet cleaning technique major advantage is that deacidification is high-efficient, external many years
Application achievements all show, to the efficiency of the purification of HCl up to 99% or more, to SO2Also it can reach 95% or more purification
Efficiency.But wet cleaning technique has the drawback that, subsequent to need complicated wastewater treatment equipment, lye absorbs in flue gas
Sour gas after, mainly generate the dreg liquid for holding colloidal suspension state containing flue dust, sulfate, sulphite etc., pH
Value is weakly acidic lower than 5.7.So the necessary proper treatment of this kind of waste water, it could outlet after up to standard.Otherwise it will cause secondary dirt
Dye.The reasonable processing of waste water should be the Sulfates that can be recycled and comprehensively utilize in waste water, make waste resource recovery.Such as: Japan
With Germany since gypsum resource lacks, so in wet process limestone/lime-gypsum method flue gas desulfurization, it successfully will be in waste water
Sulfates be converted to gypsum；Sulfates in waste water can also be converted to the liquid SO of high concentration2, as production sulfuric acid
Raw material.Now, domestic and international power plant is to the desulfurization wastewater of limestone-gypsum method mainly based on chemical treatment.First waste water is existed
Through air oxidation in buffer pool, so that low valence metal ion is oxidized to high price, (the purpose is to make metal ion be easier to precipitate to go
Except), subsequently into neutralization pond, alkaline matter milk of lime is added in neutralization pond, metal ion is made to form hydrogen-oxygen in neutralization pond
Compound precipitating, part metals ion are removed.It but is amphoterisation there are also the hydroxide (such as Fe, Cr, Ni) of some metals
Object is closed, as pH value must increase, solubility increases instead, thus, the waste water after neutralization is precipitated with city using sulfide,
Remove the metal ion in waste water more effectively.The reacted pond of waste water enters flocculation basin after forming metal sulfide, is added one
Fixed coagulant makes tiny sediment flocculation sedimentation.Then the waste water after coagulation is entered sedimentation basin to be separated by solid-liquid separation, point
It separates out the sludge a part come and then flows back into neutralization pond, the flocculated nuclei of crystallization are provided, the pH value of sedimentation basin water outlet is higher, needs to carry out
It could be discharged after up to standard.
Currently, flue gas largely uses wet process depickling, wet process depickling generates a large amount of waste liquid, and subsequent processing amount is very big, institute
To find out reasonable method, rationally to solve waste water imperative.
For the processing problem of deacidifying flue gas waste water, secondary pollution is mainly prevented, while being capable of waste water after Treatment for Reuse.
The materilization freatment method generallyd use, although processed waste water can be carried out reuse, since treating capacity is big, matched processing technology is set
Standby primary investment and follow-up investment number are very high, therefore, develop a kind of pair of deacidifying flue gas process for treating waste liquor and environment is promoted to protect
Protector is significant.
Summary of the invention
In order to overcome the shortcomings and deficiencies of the prior art described above, the present invention provides a kind of rotary kiln deacidifying flue gas waste liquids
Processing method.
The present invention is achieved by the following technical solution: a kind of processing method of rotary kiln deacidifying flue gas waste liquid, packet
Include following steps:
(1) deacidifying flue gas waste liquid is pumped into disc tube reverse osmosis (dt-ro) conditioning tank, disc tube reverse osmosis (dt-ro) conditioning tank is that DTRO is adjusted
PH processing is adjusted in pond；
(2) deacidifying flue gas waste liquid in step (1) is pumped into coagulation conditioning tank, flocculant is added and carries out static coagulation, upper layer simultaneously
Waste water pump to surge tank carries out subsequent processing；
(3) lower layer's flocculate in step (2) is introduced into plate and frame type filter-press and is filtered processing, residue is filtered into landfill disposal
Afterwards after the Waste Water Centralized in waste water and step (2), it is further processed；
(4) waste water pump in surge tank to disc tube reverse osmosis (dt-ro) conditioning tank being handled, the water produced reuse pool that is pumped into waits for reuse,
Concentrated water enters evaporation conditioning tank and is further processed；
(5) concentrated water that step (4) are discharged is introduced into coagulating basin, flocculant flocculation is added, after flocculation waste liquid after being separated by solid-liquid separation,
Water phase enters evaporation intake pool and is further processed, and sludge carries out landfill disposal；
(6) water phase that step (5) are discharged is introduced into evaporator and is evaporated processing, the steam of generation after condensation by conveying
It is for further processing to biochemical system, concentrate from bottom concentration flow container is flow to, is discharged under gravity by discharge pump
System carries out solid-liquid separation treatment, the salt cure landfill of generation.
The processing method of rotary kiln deacidifying flue gas waste liquid provided by the present invention, initially enters disc tube reverse osmosis (dt-ro) conditioning tank
PH adjusting processing is carried out, acids is neutralized；Then waste liquid is pumped into coagulation conditioning tank, flocculant is added and carries out static coagulation, makes
Layer waste water pump is to surge tank, and lower layer's flocculate is filtered processing, and residue landfill, waste water enters together with the waste water of upper layer after filtering
The processing of disc tube reverse osmosis (dt-ro) conditioning tank, concentrated water enter evaporation conditioning tank, introduce coagulating basin, flocculant flocculation are added, using solid
Liquid separation, Sludge landfill, water phase, which enters in evaporator, is evaporated processing, and the steam condensation of generation is delivered to biochemical system, dense
Contracting liquid under the effect of gravity, flow to bottom concentration flow container, is separated by solid-liquid separation again by discharge pump, finally make the salt generated solid
Change landfill.
Preferably, in the step (2), when flocculant is added preferentially to deacidifying flue gas waste liquid carry out aeration stirring 5 ~
It is stood again after 10min, aeration quantity is 2 ~ 4m3/ (m2H), by aeration stirring, flocculant is made to be evenly distributed in waste liquid, mixed
Stop stirring after uniformly, sufficiently static guarantee sufficiently flocculation.
Preferably, the flocculant in the step (2) and (5) is PB1 gene, the dosage of flocculant is 0.5 ~
2g/L。
Preferably, the disc tube reverse osmosis (dt-ro) conditioning tank in the step (4) is further equipped with the cloth bag for dispelling suspended matter
Filter.
Preferably, the disc tube reverse osmosis (dt-ro) conditioning tank in the step (4) is further equipped with the activity for dispelling organic matter
Carbon filter.
Preferably, in step (6), first water phase is preheated before water phase is introduced into evaporator, is preheated to evaporation
It is transferred to after temperature in evaporator and is evaporated processing, after being preheated to evaporating temperature, reduce influence of the material to evaporation process.
It is further preferred that being filtered water phase before preheating to water phase, the particulate contaminant in waste water is filtered out, reduces blocking
Equipment, pump and pipeline.
Preferably, water phase organic matters content is less in the step (6), while the predominantly nothings such as sulfate, sulphite
Machine salt, after being separated by solid-liquid separation, liquid phase can reenter vapo(u)rization system and evaporate again concentrate.
Preferably, in the step (6), gas-liquid separator is first passed through before generated steam condensation and captures foam and takes
The waste liquid of band, such as secondary demister, vapor are further processed using biochemical system is delivered to after condensation.
Preferably, evaporator described in the step (6) is triple effect evaporator.
Do not indicate that temperature refers both to carry out at room temperature in the present invention, heretofore described stirring is for promoting raw material
Between be sufficiently mixed, accelerate reaction, therefore the mixing speed of this field routine can be achieved, do not need restriction mixing speed.
Compared with prior art the invention has the following advantages: rotary kiln deacidifying flue gas waste liquid provided by the present invention
Processing method, can make about 70% waste liquid that can directly carry out deacidifying flue gas reuse after DTRO；Treatment process of the invention at
This is low, easy to operate, does not generate secondary pollution, for promoting environmental protection to be of great significance.
Detailed description of the invention
Fig. 1 is deacidifying flue gas process for treating waste liquor flow diagram of the invention.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
A kind of processing method of rotary kiln deacidifying flue gas waste liquid, the present embodiment are including as follows after using preferred embodiment
Step:
(1) deacidifying flue gas waste liquid is pumped into disc tube reverse osmosis (dt-ro) conditioning tank, disc tube reverse osmosis (dt-ro) conditioning tank is that DTRO is adjusted
PH processing is adjusted in pond；
(2) deacidifying flue gas waste liquid in step (1) is pumped into coagulation conditioning tank, flocculant is added and carries out static coagulation, upper layer simultaneously
Waste water pump to surge tank carry out subsequent processing, when flocculant is added preferentially to deacidifying flue gas waste liquid progress aeration stirring 5 ~
It is stood again after 10min, aeration quantity is 2 ~ 4m3/ (m2H), by aeration stirring, flocculant can be made to be evenly distributed in waste liquid,
Stop stirring after mixing, sufficiently static guarantee sufficiently flocculation；Wherein flocculant is PB1 gene, the throwing of flocculant
Dosage is 0.5 ~ 2g/L；
(3) lower layer's flocculate in step (2) is introduced into plate and frame type filter-press and is filtered processing, residue is filtered into landfill disposal
Afterwards after the Waste Water Centralized in waste water and step (2), it is further processed；
(4) waste water pump in surge tank to disc tube reverse osmosis (dt-ro) conditioning tank being handled, the water produced reuse pool that is pumped into waits for reuse,
Concentrated water enters evaporation conditioning tank and is further processed；Wherein disc tube reverse osmosis (dt-ro) conditioning tank is further equipped with for dispelling suspended matter
Cloth envelop collector and active carbon filter for dispelling organic matter；
(5) concentrated water that step (4) are discharged is introduced into coagulating basin, flocculant flocculation is added, after flocculation waste liquid after being separated by solid-liquid separation,
Water phase enters evaporation intake pool and is further processed, and sludge carries out landfill disposal；Wherein flocculant is PB1 gene,
The dosage of flocculant is 0.5 ~ 2g/L；
(6) water phase that step (5) are discharged is filtered, filters out the particulate contaminant in waste water, reduce occluding device, pump and pipe
Then road preheats filtered water phase, after being preheated to evaporating temperature, be introduced into evaporator and be evaporated processing, produces
First pass through the waste liquid that gas-liquid separator captures foam and carrying before raw steam condensation, vapor after condensation using being delivered to
Biochemical system is further processed；From bottom concentration flow container is flow to, system is discharged by discharge pump under gravity in concentrate
System carries out solid-liquid separation treatment, the salt cure landfill of generation, and liquid phase reenters vapo(u)rization system and evaporates again；Wherein evaporator
For triple effect evaporator, flow separator is secondary demister.
Do not indicate that temperature refers both to carry out at room temperature in the present embodiment, the stirring is for promoting to fill between raw material
Divide mixing, accelerate reaction, therefore the mixing speed of this field routine can be achieved, does not need restriction mixing speed.
The scope of protection of present invention is not limited to the above specific embodiment, and for those skilled in the art and
Speech, the present invention can there are many deformation and change, it is all within design and principle of the invention it is made it is any modification, improve and
Equivalent replacement should be all included within protection scope of the present invention.
Claims (10)
1. a kind of processing method of rotary kiln deacidifying flue gas waste liquid, characterized by the following steps:
(1) deacidifying flue gas waste liquid is pumped into disc tube reverse osmosis (dt-ro) conditioning tank, pH processing is adjusted；
(2) deacidifying flue gas waste liquid in step (1) is pumped into coagulation conditioning tank, flocculant is added and carries out static coagulation, upper layer simultaneously
Waste water pump to surge tank carries out subsequent processing；
(3) lower layer's flocculate in step (2) is introduced into plate and frame type filter-press and is filtered processing, residue is filtered into landfill disposal
Afterwards after the Waste Water Centralized in waste water and step (2), it is further processed；
(4) waste water pump in surge tank to disc tube reverse osmosis (dt-ro) conditioning tank being handled, the water produced reuse pool that is pumped into waits for reuse,
Concentrated water enters evaporation conditioning tank and is further processed；
(5) concentrated water that step (4) are discharged is introduced into coagulating basin, flocculant flocculation is added, after flocculation waste liquid after being separated by solid-liquid separation,
Water phase enters evaporation intake pool and is further processed, and sludge carries out landfill disposal；
(6) water phase that step (5) are discharged is introduced into evaporator and is evaporated processing, the steam of generation after condensation by conveying
It is for further processing to biochemical system, concentrate from bottom concentration flow container is flow to, is discharged under gravity by discharge pump
System carries out solid-liquid separation treatment, the salt cure landfill of generation.
2. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
(2) in, when flocculant is added preferentially to deacidifying flue gas waste liquid carry out 5 ~ 10min of aeration stirring after stand again, aeration quantity be 2 ~
4m3/ (m2H), by aeration stirring, flocculant is made to be evenly distributed in waste liquid, stops stirring after mixing, it is sufficiently static
Guarantee sufficiently flocculation.
3. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
(2) flocculant and in (5) is PB1 gene, and the dosage of flocculant is 0.5 ~ 2g/L.
4. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
(4) the disc tube reverse osmosis (dt-ro) conditioning tank in is further equipped with the cloth envelop collector for dispelling suspended matter.
5. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
(4) the disc tube reverse osmosis (dt-ro) conditioning tank in is further equipped with the active carbon filter for dispelling organic matter.
6. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
(6) first water phase is preheated before water phase is introduced into evaporator in, is transferred in evaporator after being preheated to evaporating temperature
It is evaporated processing, after being preheated to evaporating temperature, reduces influence of the material to evaporation process.
7. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 6, it is characterised in that: the step
(6) before being preheated in water phase, water phase is filtered, filters out the particulate contaminant in waste water, reduce occluding device, pump and
Pipeline.
8. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
(6) after being separated by solid-liquid separation, liquid phase reenters vapo(u)rization system and evaporates again the concentrate in.
9. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
(6) in, the waste liquid that gas-liquid separator captures foam and carrying is first passed through before generated steam condensation, vapor is using cold
Biochemical system is delivered to after solidifying to be further processed.
10. a kind of processing method of rotary kiln deacidifying flue gas waste liquid according to claim 1, it is characterised in that: the step
Suddenly evaporator described in (6) is triple effect evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783811.6A CN110436713A (en) | 2019-08-23 | 2019-08-23 | A kind of processing method of rotary kiln deacidifying flue gas waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783811.6A CN110436713A (en) | 2019-08-23 | 2019-08-23 | A kind of processing method of rotary kiln deacidifying flue gas waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110436713A true CN110436713A (en) | 2019-11-12 |
Family
ID=68437445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910783811.6A Pending CN110436713A (en) | 2019-08-23 | 2019-08-23 | A kind of processing method of rotary kiln deacidifying flue gas waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110436713A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1085742A (en) * | 1996-09-12 | 1998-04-07 | Kawasaki Heavy Ind Ltd | Method and apparatus for treating desulfurization drainage |
| CN205893013U (en) * | 2016-08-03 | 2017-01-18 | 广州市迈源科技有限责任公司 | Landfill leachate is biochemical, joint processing system of evaporation |
| CN207877490U (en) * | 2017-11-30 | 2018-09-18 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of thermal power plant desulfurization wastewater zero-discharge treatment system |
| CN109824196A (en) * | 2019-03-13 | 2019-05-31 | 苏州希图环保科技有限公司 | A kind of low COD Wastewater zero-discharge treatment system with high salt |
-
2019
- 2019-08-23 CN CN201910783811.6A patent/CN110436713A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1085742A (en) * | 1996-09-12 | 1998-04-07 | Kawasaki Heavy Ind Ltd | Method and apparatus for treating desulfurization drainage |
| CN205893013U (en) * | 2016-08-03 | 2017-01-18 | 广州市迈源科技有限责任公司 | Landfill leachate is biochemical, joint processing system of evaporation |
| CN207877490U (en) * | 2017-11-30 | 2018-09-18 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of thermal power plant desulfurization wastewater zero-discharge treatment system |
| CN109824196A (en) * | 2019-03-13 | 2019-05-31 | 苏州希图环保科技有限公司 | A kind of low COD Wastewater zero-discharge treatment system with high salt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104355473B (en) | A kind of method using electrodialytic technique to carry out power plant desulfurization waste water desalination zero discharge treatment | |
| CN101016175B (en) | Method of eliminating magnesium sulfate from magnesium sulfate containing waste water solution | |
| CN105540977A (en) | Desulfurized waste water treatment method and system | |
| CN105948364A (en) | Desulfurization wastewater zero discharging treatment system based on bypass flue evaporation | |
| CN102010082B (en) | Treatment method for recycling waste dilute sulfuric acid | |
| CN206352096U (en) | Desulfurization wastewater zero-discharge treatment system is carried out using flue evaporative crystallization | |
| CN101157504B (en) | Process for softening hardwater by employing SO2 and CO2 in exhaust gas | |
| CN106542670A (en) | A kind of wet desulphurization waste water zero discharge treatment process | |
| CN108975570A (en) | A kind of device and method handling industrially desulfurized waste water using stack gases | |
| CN111170544A (en) | Zero discharge system and method for pretreatment wastewater of active coke desulfurization and denitrification and salt preparation from rich gas | |
| CN110745989B (en) | Activated carbon flue gas purification acid-making wastewater zero-discharge process and system | |
| CN205974125U (en) | Desulfurization waste water zero release processing system | |
| CN104229757B (en) | A kind of method of dirty acid purification being processed to Returning process recycling | |
| CN109650636A (en) | A kind of brine waste processing system | |
| CN206188554U (en) | Zero discharge system of coal fired power plant desulfurization waste water | |
| CN209368063U (en) | A kind of garbage percolation liquid treating system | |
| CN107875853A (en) | A kind of coal-burning power plant environmental protection island system and method for cooperateing with zero-emission desulfurization wastewater | |
| CN209143930U (en) | A kind of coal fired power plant desulfurization wastewater dechlorination processing unit | |
| CN111453795A (en) | High-magnesium desulfurization wastewater concentration and reduction treatment system and process | |
| CN206980451U (en) | System for integrated treatment fire coal boiler fume and mine water | |
| CN216236502U (en) | Landfill leachate treatment system | |
| CN110436713A (en) | A kind of processing method of rotary kiln deacidifying flue gas waste liquid | |
| CN214115293U (en) | Ion exchange regeneration sewage calcium removal system | |
| CN212403826U (en) | Desulfurization waste water advanced treatment of power plant and utilization system | |
| CN210764746U (en) | Adopt washing cigarette waste water retrieval and utilization processing apparatus of STRO device |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
|
| RJ01 | Rejection of invention patent application after publication |