CN207537285U - A kind of high-salt wastewater treatment process melded system - Google Patents
A kind of high-salt wastewater treatment process melded system Download PDFInfo
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- CN207537285U CN207537285U CN201720770453.1U CN201720770453U CN207537285U CN 207537285 U CN207537285 U CN 207537285U CN 201720770453 U CN201720770453 U CN 201720770453U CN 207537285 U CN207537285 U CN 207537285U
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 239000010802 sludge Substances 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 15
- 150000001768 cations Chemical class 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 13
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 13
- 239000011734 sodium Substances 0.000 claims abstract description 13
- 238000005189 flocculation Methods 0.000 claims abstract description 12
- 230000016615 flocculation Effects 0.000 claims abstract description 12
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 230000007774 longterm Effects 0.000 claims abstract description 4
- 230000013011 mating Effects 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 4
- 239000010808 liquid waste Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 claims 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims 1
- 239000006227 byproduct Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N chlorine dioxide Inorganic materials O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- PALNZFJYSCMLBK-UHFFFAOYSA-K magnesium;potassium;trichloride;hexahydrate Chemical group O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-].[Cl-].[K+] PALNZFJYSCMLBK-UHFFFAOYSA-K 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a kind of high-salt wastewater treatment process melded system, this system mainly includes desulfurization process device, circulating water treatment device, boiler feedwater pretreatment device, raw water regulating reservoir, electric flocculation device, the super softening plant of level-one, the super softening plant of two level, ozone equipment, ultraviolet device, filter, weak acid cation bed, sodium bed, cartridge filter, NF devices, HIRO devices, electrolysis unit, purifying plant, recycle device, super flocculant, hydrogen gas recovering device；To ensure the operation steady in a long-term of this process system, further include related mating cleaning device, chemicals dosing plant, electrical system and instrument control, sludge with generation separately recycles, and the production water reuse (treatment weak acid cation bed of NF, sodium bed, the generation concentrated water of HIRO after electrolysis unit by recycling.Shorten system flow, each byproduct recycles and reuses, saves the advantages that effluent part investment and operation processing cost, solves the problems, such as that current high-salinity wastewater zero-emission encounters.
Description
Technical field
The present invention relates to high-salt wastewaters to handle environmental technology field, and in particular to a kind of high-salt wastewater treatment process softening system
System.
Background technology
China's rapid economic development at present, the huge consumption of the simultaneous energy, environmental problem also getting worse.In order to
Current environment situation is made to be improved, country is also increasingly tighter to the management of the three wastes, and zero discharge of industrial waste water is numerous enterprises
Received with professional occurrences in human life, while gradual beginning is implemented in industrial circle.And water is essential as industrial circle
Resource, the discharge of the strong brine environmental protection index important as one after concentration.The zero-emission that China industrial wastewater field is implemented,
Especially in thermal power plant, critical issue is that desulfurization wastewater operating cost and cost of investment are too high, and lacks stable operation warp
It tests, is now exploring how to test and finding more stable processing method and operating cost compared with low technical.
Present patent application integrally considers a kind of high-salt wastewater treatment process melded system, and high-salt wastewater and power plant are taken off
Sulphur system integrally considers that for the waste water for generating desulphurization system after softening, the sludge generated is CaCO3With Mg (OH)2, two
Kind byproduct can be separated and be recycled；After supernatant after softening softens again, production water enters NF devices and carries out a point salt treatment,
The part renewable weak acid cation bed of production water and sodium bed, the production water of other NF devices enter HIRO and carry out that concentrated water, concentrated water enter electricity again
Device is solved, product is recycled.
It is that embrane method+evaporative crystallization and fume afterheat evaporate two kinds that the country common at present, which was explored with the experimental stage,
Embrane method has that positive infiltration and high pressure are reverse osmosis, and flue residue heat evaporation is divided into before deduster to be sprayed after spray and deduster.Fume afterheat
It is carnallite to steam generation, and possible next stage can be influenced by environmental protection policy, and embrane method+evaporative crystallization, softens reagent cost
It is excessively high, it runs and overhauls and is more demanding.
Invention content
The present invention overcomes the deficiencies in the prior art, provide a kind of high-salt wastewater treatment process melded system.
In view of the above problem of the prior art, according to an aspect of the present invention, to solve the technical issues of above-mentioned, sheet
Invention uses a kind of high-salt wastewater treatment process melded system, this system mainly includes desulfurization process device, circulating water treatment fills
It puts, boiler feedwater pretreatment device, raw water regulating reservoir, electric flocculation device, the super softening plant of level-one, the super softening dress of two level
It puts, ozone equipment, ultraviolet device, filter, weak acid cation bed, sodium bed, cartridge filter, NF devices, HIRO devices, be electrolysed dress
Put, purifying plant, recycle device, super flocculant, hydrogen gas recovering device；To ensure the fortune steady in a long-term of this process system
Row further includes related mating cleaning device, chemicals dosing plant, electrical system and instrument control, it is characterised in that:
This high-salt wastewater treatment process melded system passes through each device in pipeline and pump attachment system.
（1）The desulfurization wastewater of desulfurization process device production water is connect by pumping with raw water regulating reservoir, then by pump connection electricity
Flocculation plant reconnects the super softening plant of level-one, and upper part is in the super softening plant connection of two level；
The sludge settling case of the super softening plant of two level is returned to be connect with first reaction chamber of the super softening plant of two level.
（2）The super softening plant of two level is equipped with ozone equipment and ultraviolet device, and filter is connect with weak acid cation bed, weak acid
Cation bed series connection sodium bed softening, connects ultraviolet device afterwards, reconnects cartridge filter, then with NF devices, concentrated water spout at desulfurization
Manage device connection.
（3）The production water connection NF water producing tanks of NF devices, HIRO devices are connect with electrolysis unit, and electrolysis unit is equipped with purification
Device is simultaneously connect with hydrogen gas recovering device；Compared with prior art, it is of the invention to be advantageous in that：
（1）Through electric flocculation device after being aerated in waste water raw water regulating reservoir, through level-one, the super softening plant of two level, generate
Sludge be CaCO3With Mg (OH)2, two kinds of byproducts, which can separate, to be recycled；
（2）The super softening plant of two level is equipped with ozone equipment, ultraviolet device is sterilized；
（3）The concentrated water that special separation film generates directly is back to desulphurization system, directly and SO2Gypsum is generated, saves desulfurization system
The lime stone of system；
（4）Weak acid cation bed, sodium bed regeneration NF devices production water, save medicament and save effluent part investment and operation simultaneously
Processing cost；
（5）The concentrated water that HIRO devices generate enters electrolysis unit, and the byproduct generated is comprehensively utilized；
（6）Each unit can independent operating, regulating power is stronger；
（7）Technological process is relatively short, reduces investment outlay and operating cost.
Description of the drawings
Illustrate present specification embodiment or technical solution of the prior art in order to clearer, it below will be to embodiment
Or attached drawing is briefly described needed in the description of the prior art, it should be apparent that, the accompanying drawings in the following description is only
It is the reference to some embodiments in present specification, for those skilled in the art, what is do not made the creative labor
In the case of, other attached drawings can also be obtained according to these attached drawings, are used after being also adjusted to certain part therein.
Fig. 1 shows the structure diagram of high-salt wastewater treatment process melded system according to an embodiment of the invention.
In figure, (101) desulfurization process device, (102) raw water regulating reservoir, (103) electric flocculation device, the super softening plant of (104) level-one,
(105) the super softening plant of two level, (106) ozone equipment, (107) ultraviolet device, (108) filter, (109) weak acid sun
Bed, (110) sodium bed, (111) cartridge filter, (112) NF devices, (113) HIRO, (114) electrolysis unit, (115) recycling profit
With device, (116) purifying plant, (117) hydrogen gas recovering device, (118) super flocculant, (119) circulating water treatment device,
(120) boiler feedwater pretreatment device.
Specific embodiment
The present invention is described in further detail, but the implementation of the present invention is not limited to this with reference to embodiment.
Fig. 1 shows high-salt wastewater treatment process melded system according to an embodiment of the invention, including desulfurization process
Device (101), raw water regulating reservoir (102), electric flocculation device (103), the super softening plant of level-one (104), the super softening of two level
Device (105), ozone equipment (106), ultraviolet device (107), filter (108), weak acid cation bed (109), sodium bed (110),
Cartridge filter (111), NF devices (112), HIRO (113), electrolysis unit (114), recycle device (115), purification dress
Put (116), hydrogen gas recovering device (117), super flocculant (118), circulating water treatment device (119), boiler feedwater are located in advance
Manage device (120).
In order to realize zero discharge of industrial waste water with high salt, this high-salt wastewater treatment process melded system is broadly divided into five
Step is realized, passes through pipeline and each device in pump attachment system.
Step 1：Desulfurization process device (101) produces the desulfurization wastewater of water, is aerated into raw water regulating reservoir (102),
After removing part COD, electric flocculation device (103) is squeezed by pump, flocculation reaction is generated by electric flocculation device (103).Then into
Enter the super softening plant of level-one (104)；
Step 2：To the super softening plant of level-one (104) differential responses case add in caustic soda, super flocculant (118),
Organic sulfur, soda ash and flocculation aid make the pH value of water be maintained at 9 ~ 10, make heavy metal precipitation, Ca2+Generate CaCO3Sludge, with removal
Part SiO2, this sludge using sludge reflux recycle and discharge two kinds in the super softening plant of level-one (104), sludge reflux from
The sludge settling case of the super softening plant of level-one (104) is back to first reaction chamber of the super softening plant of level-one (104), when
When concentration reaches 3 ~ 10, filter press, mud cake outward transport can be drained into, pressing filtering liquid is back to first of the super softening plant of level-one (104)
Reaction chamber；
Step 3：The supernatant of the super softening plant of level-one (104) surpasses to the super softening plant of two level (105) to two level
Caustic soda, super flocculant (118) are added in the different zones of grade softening plant (105), the pH value of water is made to be maintained at 11 ~ 12,
Generate Mg (OH)2Precipitation, with removal residue SiO2；
This sludge using sludge reflux recycle and discharge two kinds in the super softening plant of two level (105), sludge reflux from
The sludge settling case of the super softening plant of two level (105) is back to first reaction chamber of the super softening plant of two level (105), when
When concentration reaches 3 ~ 10, filter press can be drained into, mud cake recoverable, sludge can also be returned desulfurization process device carry out with
SO2Reaction, pressing filtering liquid are back to first reaction chamber of the super softening plant of two level (105)；
Step 4：The super softening plant of two level (105) is equipped with ozone equipment (106), ultraviolet device (107), thereon
Clear liquid filters after sterilization in filter (108), after weak acid cation bed (109), sodium bed (110) softening, then ultraviolet light
Into NF devices (112) after device (107) sterilization, by cartridge filter (111), NF devices (112) carry out a point salt treatment, dense
Water is mainly Mg2+、Ca2+、SO42-, production water side is mainly NaCl.Concentrated water can return desulfurization process device (101), also can be with two level
Sludge Mg (OH) in super softening plant (105)2Reaction generation MgSO4；
Step 5：The production water of NF devices (112) enters NF water producing tanks, and production moisture is to be utilized at three, and weak acid is used at one
The regeneration of cation bed (109), sodium bed (110), when regeneration, add in antisludging agent, and regeneration liquid waste enters the super softening plant of level-one (104)；
Second part can enter HIRO devices (113), and after HIRO devices (113) concentration, production water recycles, and concentrated water enters electrolysis
Device (114) in four kinds of gases such as anode chamber's generation ClO2, O3, Cl2, H2O2, generates H2, NaOH, in Anode in cathode chamber
Into gas part enter circulating water treatment device (119) and boiler feedwater pretreatment device (120) carries out disinfection sterilization,
It transports outward, NaClO2 can be also generated with NaOH and then transports outward after can carrying out pressurization bottling, the product of generation enters recycle device
(115) packaging utilization is carried out, H2 enters purifying plant (115) and enters hydrogen gas recovering device (116) afterwards；To ensure this technique system
The operation steady in a long-term of system, realizes complete zero-emission, while product is utilized, and further includes related mating cleaning device, adds
Medicine device, electrical system and instrument control participate in a kind of this operation of high-salt wastewater treatment process melded system.
" one embodiment " and " embodiment " for being spoken of in the present specification etc. refers to combining embodiment description
Specific features, structure or feature are included at least one embodiment of the application generality description.It is multiple in the description
It is not centainly to refer to same embodiment that statement of the same race, which occurs, in place.Furthermore, it is understood that describe one with reference to any embodiment
Specific features, structure either feature when to be advocated is that this feature, structure or feature are realized with reference to other embodiment
Also it falls within the scope of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modifications and embodiment, these modifications and embodiment will be fallen in this Shen
It please be within disclosed spirit and spirit.More specifically, it is disclosed, in the range of drawings and claims in the application, it can
A variety of variations and modifications are carried out with the building block to theme combination layout and/or layout.In addition to building block and/or layout
Outside the variations and modifications of progress, to those skilled in the art, other purposes also will be apparent.
Claims (1)
1. a kind of high-salt wastewater treatment process melded system, this system mainly include desulfurization process device, circulating water treatment device,
Boiler feedwater pretreatment device, raw water regulating reservoir, electric flocculation device, the super softening plant of level-one, the super softening plant of two level,
Ozone equipment, ultraviolet device, filter, weak acid cation bed, sodium bed, cartridge filter, NF devices, HIRO devices, electrolysis unit,
Purifying plant, recycle device, super flocculant, hydrogen gas recovering device；To ensure the operation steady in a long-term of this process system,
Further include related mating cleaning device, chemicals dosing plant, electrical system and instrument control, it is characterised in that：At this high-salt wastewater
Science and engineering skill melded system passes through each device in pipeline and pump attachment system；
（1）The desulfurization wastewater of desulfurization process device production water is connect with raw water regulating reservoir, then by pump connection electric flocculation device, then
The super softening plant of level-one is connected, upper part is connect with the super softening plant of two level, the sludge settling of the super softening plant of two level
Case is returned and is connect with first reaction chamber of the super softening plant of two level；
（2）The super softening plant of two level is equipped with ozone equipment and ultraviolet device, and filter is connect with weak acid cation bed, weak acid cation bed
Sodium bed of connecting softens, and connects ultraviolet device afterwards, reconnects cartridge filter, then connect with NF devices, at concentrated water spout and desulfurization
Manage device connection；
（3）The production water of NF devices enters NF water producing tanks, and production moisture is to be utilized at three, at one for weak acid cation bed, sodium bed again
Raw, regeneration liquid waste enters the super softening plant of level-one；Second part enters HIRO devices, after the concentration of HIRO devices, produces water
It recycles, concentrated water enters electrolysis unit, and ClO is generated in anode chamber2、O3、Cl2、H2O2Four kinds of gases generate H in cathode chamber2、
NaOH enters circulating water treatment device in the gas part of anode generation and boiler feedwater pretreatment device carries out disinfection and kills
Bacterium is transported outward after carrying out pressurization bottling or generates NaClO with NaOH2Then it transports outward, the product of generation enters recycle device
Carry out packaging utilization, H2Enter hydrogen gas recovering device after into purifying plant.
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| CN201720770453.1U CN207537285U (en) | 2017-06-29 | 2017-06-29 | A kind of high-salt wastewater treatment process melded system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720770453.1U CN207537285U (en) | 2017-06-29 | 2017-06-29 | A kind of high-salt wastewater treatment process melded system |
Publications (1)
| Publication Number | Publication Date |
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| CN207537285U true CN207537285U (en) | 2018-06-26 |
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Address after: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Water Environmental Protection Co.,Ltd. Country or region after: China Address before: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee before: Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd. Country or region before: China |