CN206680207U - COD, the processing system of ammonia nitrogen in a kind of removal steam - Google Patents
COD, the processing system of ammonia nitrogen in a kind of removal steam Download PDFInfo
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- CN206680207U CN206680207U CN201720438688.0U CN201720438688U CN206680207U CN 206680207 U CN206680207 U CN 206680207U CN 201720438688 U CN201720438688 U CN 201720438688U CN 206680207 U CN206680207 U CN 206680207U
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Abstract
The utility model provides COD, the processing system of ammonia nitrogen in a kind of removal steam, including sour scrubber system and alkali scrubber system；Sour scrubber system includes sour aeration tower, sour spray system, the sour aeration tower of connection and acid tower circulating pump, the first pH systems, automatic acid supplementing apparatus, sour demister and the acid tower slurries pump of sour spray system, sour spray system outlet at bottom and connected with sour aeration tower entrance；Alkali scrubber system includes alkali aeration tower, alkali spray system, connection alkali aeration tower and washing tower (for removing CO2) circulating pump, the 2nd pH systems, automatic alkali system, alkali demister and washing tower (for removing CO2) slurries pump, the alkali spray system outlet at bottom mended of alkali spray system and connected with alkali aeration tower entrance；The steam (vapor) outlet of pickling gas top of tower is connected by jet chimney with the steam inlet of alkali spray system.The system footprint is small, energy consumption is low, treating capacity is big, high COD, high ammonia-nitrogen wastewater in effectively handling.
Description
Technical field
It the utility model is related to COD, the processing system of ammonia nitrogen in sewage disposal technology, more particularly to a kind of removal steam.
Background technology
In " 13 " period, need to be fully recognized that it is that water is all precious, China's water body treating needs emphasis to recognize that water pollution is prevented
Controlling must pick up from Sources decreasing, it will also be recognized that sewage, waste water are valuable resources, to strive for the money of sewage, waste water
Source, energy.To pay attention to the research and application of sewage, wastewater processing technology simultaneously, improve water reuse rate.With regard to north
For the water shortage problem in capital, Beijing reusing sewage rate is less than 50%, and the water circumstances of Israel is similar with Beijing, its Water circulation
Rate but reaches 90%, and the agricultural product of Israel have been realized in exporting.This has just fully demonstrated the weight of water reuse
The property wanted.
Water is Source of life, without the saving and protection of water, just without Ecological Industrial, ecocity.With Chinese cities and towns
The quickening of change process, industrial development is rapid, and urban population constantly expands, scale constantly expands, therewith caused various waste water
Also increase therewith.Such as kitchen waste water, sanitary sewage, coking chemical waste water, trade effluent, percolate etc..Their processing is difficult
Point is exactly high COD, high ammonia nitrogen.
COD is removed in the current sewage disposal process in China, the method for ammonia nitrogen is to carry out in the case of a liquid.
Ion-exchange process by ion exchange resin by containing with the COD in distilled water and ammonia nitrogen exchange adsorption, though so
Standard water discharge can so be allowed, but resins exchange is limited in one's ability, treating capacity is extremely low, and can not go back primary resin after supersaturation in time will be by
Breakdown, cause system and its be unable to steady and continuous production.And cost is high when needing regenerating resin after saturation, greatest problem be
In resin reduction process, the largely waste liquid containing ammonia nitrogen and COD is produced, causes secondary pollution again.
DTRO techniques, the completely diaphragm by high pressure carry out mandatory filtering, and operating cost is high, and water outlet yields poorly, and concentrates
The problems such as liquid is up to 45%~55%, and winter operation difficulty is big, the later stage runs accessory and membrane module rapid wear and price is high.
Utility model content
The purpose of this utility model is, can not meet existing sewage for techniques such as traditional ion exchange, DTRO
The problem of high standards of processing, COD, the processing system of ammonia nitrogen in a kind of removal steam are proposed, the system footprint is small, energy consumption
It is low, treating capacity is big, high COD, high ammonia-nitrogen wastewater in effectively handling.
To achieve the above object, the technical solution adopted in the utility model is：COD, the place of ammonia nitrogen in a kind of removal steam
Reason system, including sour scrubber system and alkali scrubber system；
The sour scrubber system includes sour aeration tower, sour spray system, connection sour aeration tower lower end liquid outlet and acid and sprayed
The acid tower circulating pump of leaching system spray head, the first pH systems of the sour spray system of connection and sour aeration tower, it is arranged on acid tower circulation
Automatic acid supplementing apparatus between pump and sour aeration tower on pipeline, the sour spray system outlet at bottom connect with sour aeration tower entrance
Logical, the sour aeration tower upper end is provided with the sour demister for removing liquid in steam, the wintercherry of the pickling gas tower bottom
Liquid floss hole is provided with acid tower slurries pump；
The alkali scrubber system includes alkali aeration tower, alkali spray system, connection alkali aeration tower lower end liquid outlet and alkali and sprayed
The washing tower (for removing CO2) circulating pump of leaching system spray head, the 2nd pH systems of connection alkali spray system and alkali aeration tower, it is arranged on washing tower (for removing CO2) circulation
Automatic benefit alkali system between pump and alkali aeration tower on pipeline, the alkali spray system outlet at bottom connect with alkali aeration tower entrance
Logical, the alkali aeration tower upper end is provided with the alkali slurries row for removing the alkali demister of liquid in steam, the alkali cleaning gas tower bottom
Put mouth and be provided with washing tower (for removing CO2) slurries pump；
The steam (vapor) outlet of the pickling gas top of tower is connected by jet chimney with the steam inlet of alkali spray system.
Further, the evaporating temperature of the sour scrubber system and alkali scrubber system is 60 DEG C -115 DEG C.
Further, the sour aeration tower tower body is provided with temp measuring system.
Further, the alkali aeration tower tower body is provided with temp measuring system.
Further, the sour spray system includes two spray pipings in parallel, is provided with two spray pipings
Shower nozzle.
Further, the alkali spray system includes two spray pipings in parallel, is provided with two spray pipings
Shower nozzle.
Further, spiral Solid cone nozzle (spray head), spiral Solid cone nozzle are provided with the sour aeration tower
It is the capital equipment of sour spray system, sprays acid solution and steam reaction, removes the polluter in steam.
Further, spiral Solid cone nozzle (spray head), spiral Solid cone nozzle are provided with the alkali aeration tower
It is the capital equipment of alkali spray system, sprays alkali lye and steam reaction, removes the polluter in steam.
Further, the automatic acid supplementing apparatus and the first pH system relationships, the automatic acid supplementing apparatus can be according to pickling
The pH value that first pH systems of gas tower monitor in real time automatically adjusts.The state of sour caustic scrubber system work is typically high-temperature systems,
Open the valve before and after the first pH systems when needing to measure pH to measure, measurement will close the after terminating after measurement pipeline cleaning
Valve before and after one pH systems, when need not measure the acid/base liquid of high temperature be without the first pH systems, will not be right
First pH systems cause to use and the influence on the life-span.
Further, the automatic benefit alkali system and the 2nd pH system relationships, the automatic benefit alkali system can be according to alkali cleaning
The pH value that 2nd pH systems of gas tower monitor in real time automatically adjusts.The state of sour caustic scrubber system work is typically high-temperature systems,
Open the valve before and after the 2nd pH systems when needing to measure pH to measure, measurement will close the after terminating after measurement pipeline cleaning
Valve before and after two pH systems, when need not measure the acid/base liquid of high temperature be without the 2nd pH systems, will not be right
2nd pH systems cause to use and the influence on the life-span.
The utility model it is a kind of remove steam in COD, ammonia nitrogen processing system operation principle：Pending steam passes through
Jet chimney enters sour spray system, and the spray liquid (acid solution) that the ammonia in steam sprays with sour spray system is reacted, instead
Should after spray liquid flow into sour aeration tower, the spray liquid in sour aeration tower returns sour spray system by acid tower circulating pump, and then
Realize the recycling of spray liquid.The utility model spray liquid includes but is not limited to dilute sulfuric acid, and dilute sulfuric acid and the ammonia in steam are anti-
Should after generate ammonium sulfate, with the continuous progress of reaction, ammonium sulfate reaches saturation state, sour aeration tower lower cylinder crystallize
Separate out.
With the progress of reaction in evaporation process, connecting sour spray system and the first pH systems of sour aeration tower can monitor
The pH value of spray liquid (acid solution), the pH value rise of spray liquid, represents that spray liquid is reacted with steam, with the progress of reaction
Spray liquid gradually uses up, in order to maintain acid amount and the dynamic equilibrium of polluter in steam, with the progress of reaction, according to first
The pH value that pH system detectios arrive, automatically control acid supplementing apparatus and fill into acid solution from trend pickling gas tower, make reaction continue to carry out,
During reaction, according to the change of temperature in the temp measuring system monitoring reaction course on sour aeration tower, pass through data analysis shadow
Ring reason and cause result, this temp measuring system is advantageous to collect Engineering Control data.
Steam after overpickling gas tower spray process removes the drop carried secretly in steam by sour demister, then steam
Alkali spray system is entered by jet chimney, the spray liquid (alkali that the volatile organic matter in steam sprays with alkali spray system
Liquid) reacted, reacted spray liquid inflow alkali aeration tower, the spray liquid in alkali aeration tower returns alkali by washing tower (for removing CO2) circulating pump
Spray system, and then realize the recycling of spray liquid.The utility model spray liquid includes but is not limited to sodium hydroxide, diluted alkaline with
Volatile organic matter reaction generation Organic Sodium Salt in steam, must be carried out, Organic Sodium Salt reaches saturation state, in alkali with reacting
The lower cylinder crystallization of aeration tower separates out.
With the progress of reaction during evaporation, connecting alkali spray system and the 2nd pH systems of alkali aeration tower can supervise
The pH value of spray liquid is surveyed, the pH value of spray liquid reduces, and represents that spray liquid (alkali lye) is reacted with steam, with entering for reaction
Row alkali lye gradually uses up, in order to maintain the dynamic equilibrium of alkali number and polluter in steam, with the progress of reaction, according to second
PH systems, which automatically control, mends alkali system, fills into alkali lye from trend alkali cleaning gas tower, makes reaction continue to carry out, in the process of reaction
In, according to the change of temperature in the temp measuring system monitoring reaction course on alkali aeration tower, by data analysis influencing factor and lead
Result is caused, this temp measuring system is advantageous to collect Engineering Control data.Steam after alkali aeration tower spray process is removed by alkali
Day with fog removes the drop carried secretly in steam, carries out subsequent treatment with qualified discharge.
The material of sour aeration tower takes up an area and different optional fiberglass, carbon according to the ammonia nitrogen concentration and scene that enter steam
One or more in steel lining PE, graphite.Other parts contacted with acid solution also can be selected in fiberglass, carbon steel lining PE, graphite
One or more.The material of washing tower (for removing CO2) is 316L stainless steels, and other parts contacted with alkali lye also use 316L stainless steels.
Association described in the utility model is Electricity Federation unless otherwise specified.
COD, the processing system of ammonia nitrogen are simple and reasonable for structure, compact in a kind of removal steam of the utility model, with existing skill
Art compares, and has advantages below：
1st, COD, the processing system of ammonia nitrogen in a kind of removal steam described in the utility model, the sour aeration tower and alkali cleaning
Gas tower order is certain, and steam first passes around sour aeration tower, then by alkali aeration tower.Such be arranged in ensures treatment effect
Meanwhile cost is not only saved, and reduce the corrosion to follow-up equipment.
2nd, COD, the processing system of ammonia nitrogen in a kind of removal steam described in the utility model, its operating temperature can be in 60-
Any one temperature spot between 115 DEG C, operating temperature range is narrow, and only the pollutant under the evaporating temperature point can just enter
Into steam, it can be ensured that high-quality water outlet.
3rd, COD, the processing system of ammonia nitrogen in a kind of removal steam described in the utility model, sour scrubber system and alkali cleaning gas
Temp measuring system is equipped with system, by independent temp measuring system, the operation of whole system can be monitored, facilitate the statistics of parameter
And analysis.
4th, COD, the processing system of ammonia nitrogen in a kind of removal steam described in the utility model, sour scrubber system and alkali cleaning gas
Spiral Solid cone nozzle is equipped with system, the nozzle spray is shaped as circle, is evenly distributed, pressure and the flow scope of application
Extensively, unique blade design and big flow passage ensure that out the control of liquid and uniform spraying distribution.
5th, COD, the processing system of ammonia nitrogen in a kind of removal steam described in the utility model, sour scrubber system and alkali cleaning gas
It is automatic corresponding to being equipped with system to mend acid/base system, it is automatic mend acid/base system according to special surveys pH systems automatically adjust it is sour/
The amount of filling into of alkali, the waste of effective control cost.Automaticity is high, reduces manual operation, can be achieved unattended.
COD, the processing system of ammonia nitrogen in a kind of removal steam described in the utility model, mainly for existing sewage disposal
Middle COD, ammonia nitrogen removal not thoroughly, it is not up to standard, the requirement of high standard can not be met, the utility model employs high temperature resistant, resistance to
Corrosion material, solves the problems, such as acid and alkali corrosion, while the utility model is a physical and chemical process, will not produce secondary dirt
Dye.
Brief description of the drawings
Fig. 1 is COD in the utility model removal steam, the structural representation of the processing system of ammonia nitrogen；
Fig. 2 is COD in the utility model removal steam, the flow chart of the processing system of ammonia nitrogen.
Wherein
1st, sour spray system；2nd, the first pH systems；3rd, acid tower temp measuring system；4th, acid tower circulating pump；5th, automatic acid supplementing apparatus；
6th, sour demister；7th, sour aeration tower；8th, acid tower slurries pump；9th, alkali spray system；10th, the 2nd pH systems；11st, washing tower (for removing CO2) thermometric system
System；12nd, washing tower (for removing CO2) circulating pump；13rd, alkali system is mended automatically；14th, alkali demister；15th, alkali aeration tower；16th, washing tower (for removing CO2) slurries pump.
Embodiment
The utility model is further illustrated with reference to embodiments：
Embodiment 1
Present embodiment discloses a kind of processing system for removing COD, ammonia nitrogen in steam, its structure as shown in Figure 1 and Figure 2, is wrapped
Include sour scrubber system and alkali scrubber system.The evaporating temperature of the sour scrubber system and alkali scrubber system is 60 DEG C -115 DEG C.
The sour scrubber system includes sour aeration tower 7, sour spray system 1, the sour lower end liquid outlet of aeration tower 7 of connection and acid
The acid tower circulating pump 4 of the spray head of spray system 1, the first pH systems 2 of the sour spray system 1 of connection and sour aeration tower 7, it is arranged on acid
Automatic acid supplementing apparatus 5 between tower circulating pump 4 and sour aeration tower 7 on pipeline, the sour outlet at bottom of spray system 1 and pickling gas
The entrance of tower 7 connects, and the sour upper end of aeration tower 7 is provided with the sour demister 6 for removing liquid in steam, the sour aeration tower
The wintercherry liquid floss hole of 7 bottoms is provided with acid tower slurries pump 8；The tower body of sour aeration tower 7 is provided with acid tower temp measuring system 3.Institute
State in sour aeration tower 7 and be provided with spiral Solid cone nozzle.The automatic acid supplementing apparatus 5 associates with the first pH systems 2, described automatic
Acid supplementing apparatus 5 can automatically adjust according to the pH value that the first pH systems 2 of sour aeration tower 7 monitor in real time.
The alkali scrubber system include alkali aeration tower 15, alkali spray system 9, the lower end liquid outlet of connection alkali aeration tower 15 with
The washing tower (for removing CO2) circulating pump 12 of the spray head of alkali spray system 9, the 2nd pH systems 10 for connecting alkali spray system 9 and alkali aeration tower 15, set
The automatic benefit alkali system 13 on pipeline, the bottom of alkali spray system 9 between washing tower (for removing CO2) circulating pump 12 and alkali aeration tower 15 is put to go out
Mouth connects with the entrance of alkali aeration tower 15, and the upper end of alkali aeration tower 15, which is provided with, removes the alkali demister 14 of liquid, institute in steam
The alkali slurries floss hole for stating the bottom of alkali aeration tower 15 is provided with washing tower (for removing CO2) slurries pump 16；The tower body of alkali aeration tower 15 is provided with washing tower (for removing CO2)
Temp measuring system 11.Spiral Solid cone nozzle is provided with the alkali aeration tower 15.The automatic benefit alkali system 13 and the 2nd pH systems
The association of system 10, the automatic alkali system 13 of mending can be adjusted automatically according to the pH value that the 2nd pH systems 10 of alkali aeration tower monitor in real time
Section.
The steam (vapor) outlet of the pickling gas top of tower is connected by jet chimney with the steam inlet of alkali spray system.
The present embodiment remove steam in COD, ammonia nitrogen processing system operation principle：Pending steam passes through steam pipe
Road enters sour spray system 1, and the spray liquid (acid solution) that the ammonia in steam sprays with sour spray system 1 is reacted, after reaction
Spray liquid flow into sour aeration tower 7, the spray liquid in sour aeration tower 7 returns sour spray system 1 by acid tower circulating pump 4, and then
Realize the recycling of spray liquid.The utility model spray liquid includes but is not limited to dilute sulfuric acid, and dilute sulfuric acid and the ammonia in steam are anti-
Should after generate ammonium sulfate, with the continuous progress of reaction, ammonium sulfate reaches saturation state, in the lower cylinder knot of sour aeration tower 7
Partial crystallization goes out.
With the progress of reaction in evaporation process, connecting sour spray system and the first pH systems 2 of sour aeration tower can supervise
The pH value of spray liquid (acid solution) is surveyed, the pH value rise of spray liquid, represents that spray liquid is reacted with steam, with entering for reaction
Row spray liquid gradually uses up, in order to maintain acid amount and the dynamic equilibrium of polluter in steam, with the progress of reaction, according to the
The pH value that one pH systems 2 detect, automatic acid supplementing apparatus 5 fill into acid solution from trend pickling gas tower 7, make reaction continue to carry out,
During reaction, according to the change of temperature in the monitoring reaction course of acid tower temp measuring system 3 on sour aeration tower 7, pass through number
According to analyzing influence reason and cause result, this acid tower temp measuring system 3 is advantageous to collect Engineering Control data.
Steam after the spray process of overpickling gas tower 7 removes the drop carried secretly in steam, Ran Houzheng by sour demister 6
Vapour enters alkali spray system 9 by jet chimney, the spray liquid that the volatile organic matter in steam sprays with alkali spray system 9
(alkali lye) is reacted, reacted spray liquid inflow alkali aeration tower 15, and the spray liquid in alkali aeration tower 15 is circulated by washing tower (for removing CO2)
Pump 12 returns alkali spray system 9, and then realizes the recycling of spray liquid.The utility model spray liquid includes but is not limited to hydrogen-oxygen
Change sodium, diluted alkaline and the volatile organic matter reaction generation Organic Sodium Salt in steam, must be carried out with reacting, Organic Sodium Salt reaches full
And state, crystallize and separate out in the lower cylinder of alkali aeration tower 15.
With the progress of reaction, connection alkali spray system and the energy of the 2nd pH systems 10 of alkali aeration tower during evaporation
The pH value of spray liquid is monitored, the pH value of spray liquid reduces, and represents that spray liquid (alkali lye) is reacted with steam, with reaction
Carry out alkali lye to gradually use up, in order to maintain the dynamic equilibrium of polluter in alkali number and steam, with the progress of reaction, according to the
Two pH systems 10 mend alkali system 13 automatically, fill into alkali lye from trend alkali cleaning gas tower 15, make reaction continue to carry out, in the mistake of reaction
Cheng Zhong, according to the change of temperature in the monitoring reaction course of washing tower (for removing CO2) temp measuring system 11 on alkali aeration tower 15, pass through data analysis shadow
Ring reason and cause result, this washing tower (for removing CO2) temp measuring system 11 is advantageous to collect Engineering Control data.At the spray of alkali aeration tower 15
Steam after reason removes the drop carried secretly in steam by alkali demister 14, carries out subsequent treatment with qualified discharge.
Using the present embodiment system, COD, ammonia nitrogen in steam are removed, experimental data is as shown in table 1, COD, ammonia in steam
Nitrogen significantly reduces.
Table 1
| Before steam treatment (mg/L) | After steam treatment (mg/L) | |
| COD | 82.77 | 37.62 |
| Ammonia nitrogen | 243.1 | 2.457 |
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (9)
1. COD, the processing system of ammonia nitrogen in a kind of removal steam, it is characterised in that including sour scrubber system and alkali scrubber system；
The sour scrubber system includes sour aeration tower, sour spray system, connection sour aeration tower lower end liquid outlet and acid spray
Unite the acid tower circulating pump of spray head, the sour spray system of connection and sour aeration tower the first pH systems, be arranged on acid tower circulating pump with
Automatic acid supplementing apparatus between sour aeration tower on pipeline, the sour spray system outlet at bottom connect with sour aeration tower entrance, institute
State sour aeration tower upper end and be provided with sour demister for removing liquid in steam, the wintercherry liquid discharge of the pickling gas tower bottom
Mouth is provided with acid tower slurries pump；
The alkali scrubber system includes alkali aeration tower, alkali spray system, connection alkali aeration tower lower end liquid outlet and alkali spray
Unite the washing tower (for removing CO2) circulating pump of spray head, connection alkali spray system and alkali aeration tower the 2nd pH systems, be arranged on washing tower (for removing CO2) circulating pump with
Automatic benefit alkali system between alkali aeration tower on pipeline, the alkali spray system outlet at bottom connect with alkali aeration tower entrance, institute
State alkali aeration tower upper end and be provided with and remove the alkali demister of liquid, the alkali slurries floss hole of the alkali cleaning gas tower bottom in steam and set
It is equipped with washing tower (for removing CO2) slurries pump；
The steam (vapor) outlet of the pickling gas top of tower is connected by jet chimney with the steam inlet of alkali spray system.
2. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that the sour aeration tower tower
Body is provided with temp measuring system.
3. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that the alkali aeration tower tower
Body is provided with temp measuring system.
4. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that the sour spray system
Including two spray pipings in parallel, shower nozzle is provided with two spray pipings.
5. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that the alkali spray system
Including two spray pipings in parallel, shower nozzle is provided with two spray pipings.
6. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that in the sour aeration tower
Provided with spiral Solid cone nozzle.
7. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that in the alkali aeration tower
Provided with spiral Solid cone nozzle.
8. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that the automatic benefit acid system
System and the first pH system relationships.
9. COD, the processing system of ammonia nitrogen in steam are removed according to claim 1, it is characterised in that the automatic benefit alkali system
System and the 2nd pH system relationships.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720438688.0U CN206680207U (en) | 2017-04-25 | 2017-04-25 | COD, the processing system of ammonia nitrogen in a kind of removal steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720438688.0U CN206680207U (en) | 2017-04-25 | 2017-04-25 | COD, the processing system of ammonia nitrogen in a kind of removal steam |
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| Publication Number | Publication Date |
|---|---|
| CN206680207U true CN206680207U (en) | 2017-11-28 |
Family
ID=60400696
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720438688.0U Expired - Fee Related CN206680207U (en) | 2017-04-25 | 2017-04-25 | COD, the processing system of ammonia nitrogen in a kind of removal steam |
Country Status (1)
| Country | Link |
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| CN (1) | CN206680207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986400A (en) * | 2017-04-25 | 2017-07-28 | 大连广泰源环保科技有限公司 | COD, the processing system of ammonia nitrogen in a kind of removal steam |
| CN114082290A (en) * | 2021-11-04 | 2022-02-25 | 中创水务科技环保(广东)有限公司 | Method for advanced treatment of secondary steam COD in landfill leachate by MVR evaporation process |
-
2017
- 2017-04-25 CN CN201720438688.0U patent/CN206680207U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986400A (en) * | 2017-04-25 | 2017-07-28 | 大连广泰源环保科技有限公司 | COD, the processing system of ammonia nitrogen in a kind of removal steam |
| CN106986400B (en) * | 2017-04-25 | 2023-02-03 | 大连广泰源环保科技有限公司 | Treatment system for removing COD and ammonia nitrogen in steam |
| CN114082290A (en) * | 2021-11-04 | 2022-02-25 | 中创水务科技环保(广东)有限公司 | Method for advanced treatment of secondary steam COD in landfill leachate by MVR evaporation process |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20200425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |