CN208857088U - A kind of advanced treatment apparatus for printing and dyeing wastewater - Google Patents
A kind of advanced treatment apparatus for printing and dyeing wastewater Download PDFInfo
- Publication number
- CN208857088U CN208857088U CN201820442321.0U CN201820442321U CN208857088U CN 208857088 U CN208857088 U CN 208857088U CN 201820442321 U CN201820442321 U CN 201820442321U CN 208857088 U CN208857088 U CN 208857088U
- Authority
- CN
- China
- Prior art keywords
- filter
- ozone
- printing
- pipe
- activated carbon
- 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.)
- Expired - Fee Related
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 26
- 238000004043 dyeing Methods 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 54
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 42
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010802 sludge Substances 0.000 claims abstract description 9
- 238000005188 flotation Methods 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000005273 aeration Methods 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 8
- 238000010517 secondary reaction Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 230000011218 segmentation Effects 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009298 carbon filtering Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- MMBMIVSDYYPRHH-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO.OO MMBMIVSDYYPRHH-UHFFFAOYSA-N 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a kind of advanced treatment apparatus for printing and dyeing wastewater, including secondary settling tank, denitrification bio-filter, discharge bay, flotation tank, fibre turntable filter chamber, rapidly miscible pool, ozone contact tank, activated carbon filter, air accumulator and the ozone generator being connected with air accumulator, the rapidly miscible pool top is equipped with hydrogen peroxide and adds pipeline;The ozone generator is connected with the first shunt pipe and the second shunt pipe for shunting general pipeline, being connected with shunting general pipeline;First shunt pipe is connected with the ozone contact tank, and second shunt pipe is connected with the activated carbon filter.The utility model is added by carrying out ozone segmentation in ozone contact tank and activated carbon filter, is passing through H2O2With the combination of active carbon, there is better catalytic performance, ozone utilization rate is high, and effluent quality can be improved, and it is few to produce sludge quantity, operating cost is effectively reduced, and no setting is required that deep layer filter bed can be realized, occupied area is small.
Description
Technical field
The utility model belongs to technical field, more particularly, to a kind of advanced treatment apparatus for printing and dyeing wastewater.
Background technique
Printing and dyeing enterprise is industrial wastewater discharge rich and influential family, and, organic pollutant content height big with water, coloration are deep, alkaline
Greatly, the features such as change of water quality is big belongs to intractable industrial wastewater.Domestic common printing-dyeing waste water treatment process at present, main point
For two major classes: first is that physico-chemical process, second is that biochemical method.Due in recent years, a large amount of bio-refractory organic matters such as PVA slurry, artificial
Silk alkaline hydrolysis object (mainly O-phthalic acid), New-type adjuvant etc. enter dyeing waste water, and traditional biological treatment is
By serious challenge.In addition country be continuously improved discharge water quality requirement, i.e., do not require nothing more than water outlet COD can reach 80mg/L with
Under, and total nitrogen can control in 15mg/L or less.
Various depth logos more popular at present have: biological aerated filter, advanced oxidation processes (Fenton, ozone), physics
Absorption method and membrane separation technique etc..Biological aerated filter operating cost is lower, but its influenced by change of water quality it is bigger;It is fragrant
Method needs to adjust pH and adds a large amount of molysite, causes in water outlet that salt content is higher, is unfavorable for reuse, also will form a large amount of dirts
Mud increases processing difficulty;Absorption method mainly utilizes the porous structure of active carbon, macroporous absorbent resin, carries out hard-degraded substance
Removal, investment is high, and operating cost is high, very good in operation outlet effect early period, but with the adsorption saturation of active carbon, water outlet effect
Fruit is gradually deteriorated, until system completely loses removal ability, needs to regenerate active carbon, and regeneration method is complicated, regeneration
Number is limited, and generating largely useless charcoal is secondary pollution.
Ozone has strong oxidizing property, has sterilization, and oxidation of organic compounds removes coloration, has obtained extensively in processing waste water
Application.But do not ensure that water outlet COD and total nitrogen can be up to standard only by ozone treatment.Deep layer filter bed is then to have to take off
The ability of nitrogen, but take up a large area, and the ability for removing total nitrogen is limited.
Therefore, in order to solve the above technical problems, it is necessory to provide a kind of not only with denitrogenation but also the waste water of COD can have been removed
Processing unit, while also needing occupied area small, to overcome the defect in the prior art.
Utility model content
The utility model for overcome the deficiencies in the prior art, provides a kind of denitrogenation, goes the print that COD effect is good, takes up little area
Contaminate advanced waste treatment apparatus.
To achieve the goals above, the utility model uses a kind of following technical scheme: advanced treatment apparatus for printing and dyeing wastewater,
Including secondary settling tank, denitrification bio-filter, discharge bay, flotation tank, fibre turntable filter chamber, rapidly miscible pool, ozone contact tank, work
Property carbon filtering pool, air accumulator and the ozone generator being connected with air accumulator, the rapidly miscible pool top be equipped with hydrogen peroxide add pipe
Road;The ozone generator is connected with the first shunt pipe and the second shunt pipe for shunting general pipeline, being connected with shunting general pipeline;It should
First shunt pipe is connected with the ozone contact tank, and second shunt pipe is connected with the activated carbon filter.
Preferably, there is filler and aeration plate, which is quartz sand and granular activated carbon, institute in the activated carbon filter
The second shunt pipe is stated to be connected with the aeration plate;By the setting of aeration plate so that aeration sufficiently, improves water treatment efficiency.
Preferably, there is filler, which is haydite in the denitrification bio-filter.
Further, the denitrification bio-filter lower part is equipped with backwash air inlet pipe and backwash water inlet pipe, described anti-
It rinses air inlet pipe and connects the first air blower, the backwash water inlet pipe is connected with the discharge bay;Discharge bay can directly be utilized
Water to denitrification bio-filter carry out backwash operation, avoid the occurrence of excessive water resource waste, it is energy saving.
Further, the air bearing bottom of pond portion connects a sludge pipe.
Further, the activated carbon filter bottom is equipped with air inlet pipe and recoil water pipe, the air inlet pipe connection second
Air blower;By air inlet and water inlet while backwash operation is carried out, backwash effect is good, high-efficient.
Preferably, two upper spacers are equipped in the ozone contact tank so that ozone contact tank is divided into 3 secondary reaction ponds;
First shunt pipe is set as 3, and 3 the first shunt pipes correspond with 3 secondary reaction ponds be connected to respectively;?
Realize that waste water is contacted with the segmentation of ozone, is further increased water treatment efficiency, is reduced the COD of water outlet in ozone contact tank.
This it is practical it is new in added by carrying out ozone segmentation in ozone contact tank and activated carbon filter, passing through H2O2And work
Property charcoal combination, there is better catalytic performance, ozone utilization rate is high, and effluent quality can be improved, and it is few to produce sludge quantity, is effectively reduced
Operating cost, and no setting is required that deep layer filter bed can be realized, occupied area is small;
Secondly, directlying adopt denitrification bio-filter after secondary settling tank, two-stage ozone is then recycled, it can be to avoid denitrogenation
In the process, carbon source adds excessive generation COD, reduces the COD of water outlet.
Furthermore it is handled by denitrification bio-filter, has the characteristics that load is high, impact-resistant, before can effectively improving
Section biochemical denitrification effect, lifting means stability and service life, and guarantee that can be stable is discharged the up to standard of total nitrogen, makes its arrival
GB/T 4287-2012 textile dyeing and finishing industrial water pollution object discharge standard.
In conclusion the utility model is added by carrying out ozone segmentation in ozone contact tank and activated carbon filter, logical
Cross H2O2With the combination of active carbon, there is better catalytic performance, ozone utilization rate is high, and effluent quality can be improved, and produces sludge quantity
It is few, operating cost is effectively reduced, and no setting is required that deep layer filter bed can be realized, occupied area is small.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
In order to make those skilled in the art better understand the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical solutions in the embodiments of the present invention are clearly and completely described.
As shown in Figure 1, a kind of advanced treatment apparatus for printing and dyeing wastewater, including pass sequentially through the interconnected secondary settling tank 1 of pipeline,
Denitrification bio-filter 2, discharge bay 3, flotation tank 4, fibre turntable filter chamber 5, rapidly miscible pool 6, ozone contact tank 7 and activity
Carbon filtering pool 8;Secondly, further including air accumulator 11 and the ozone generator being connected with air accumulator 12, and the outlet of ozone generator 12
End is connected with and shunts general pipeline 121, the first shunt pipe 122 and the second shunt pipe 123 made of stainless steel, and first shunts branch
Pipe 122 and the second shunt pipe 123 are connected with shunting general pipeline, and the first shunt pipe 122 is set as 3;It is described this first
Shunt pipe 122 is connected to 7 bottom of ozone contact tank, and second shunt pipe 123 is connected to the activated carbon filter 8
Bottom;Specifically, have filler and aeration plate in the activated carbon filter 8, which is quartz sand and granular activated carbon, described
Second shunt pipe 123 is connected after penetrating to activated carbon filter 8 with the aeration plate, and the aeration plate by directly buying on the market
It obtains.
Secondly, 8 bottom of activated carbon filter is equipped with air inlet pipe 81 and recoil water pipe 82, the connection of air inlet pipe 81 second
Air blower 13, the recoil water pipe 82 are equipped with water pump, the water after the completion of final process can be pumped into activated carbon filter 8,
Filler in activated carbon filter 8 is backwashed, the waste water after backwash flows into leading portion biochemical processing process section;It is described anti-
Nitrifying also has filler in biofilter 2, which is haydite;Further, 2 lower part of denitrification bio-filter is equipped with
Air inlet pipe 21 and backwash water inlet pipe 22 are backwashed, and the backwash air inlet pipe 21 connects the first air blower 9, the backwash
Water inlet pipe 22 is connected with the discharge bay 3, and backwash water inlet pipe 22 is equipped with water pump, is pumped into the water of discharge bay by water pump
To denitrification bio-filter 2, filler is backwashed;First air blower, the second air blower are to buy on the market
Obtained ordinary blower, repeats no more.
Preferably, 6 top of rapidly miscible pool, which is equipped with hydrogen peroxide, adds pipeline 61, pipeline is added by the hydrogen peroxide
Hydrogen peroxide is added to rapidly miscible pool 6;4 bottom of flotation tank connects a sludge pipe 41, can carry out to the sludge of flotation tank 4 clear
Reason;Further, it is spaced apart in the ozone contact tank 7 there are two upper spacer 71, two upper spacers divide ozone contact tank
3 secondary reaction ponds are divided into, a lower clapboard 72 is respectively equipped in each secondary reaction pond;3 above-mentioned the first shunt pipes
122 are connected to 3 secondary reaction ponds one-to-one correspondence respectively, are aerated respectively to 3 secondary reaction ponds.
Treatment process is as follows: waste water enters denitrification bio-filter 2 and stops reaction 25min, anti-nitre after being discharged by secondary settling tank 1
Change and added methanol in biofilter 2 as carbon source, and the dosage of methanol are as follows: by the Determination of Total Nitrogen in Waste Water being discharged with secondary settling tank 1
The ratio of amount is that the amount of 3:1-5:1 is added to guarantee that water outlet total nitrogen achievees the purpose that 15mg/L;Waste water is given birth to by denitrification later
The water outlet of object filter tank 2 enters discharge bay 3 and stores, then enters flotation tank 4 by discharge bay 3, while Xiang Shuizhong adds Polyferric Sulfate and PAM;It
Waste water carries out mud-water separation in flotation tank 4 afterwards, later wastewater effluent to fibre turntable filter chamber 5, and sludge is then arranged by sludge pipe
Out;After waste water removes oil removal in fibre turntable filter chamber 5, into rapidly miscible pool 6, pipeline is added to fast by hydrogen peroxide
Fast mixing pit 6 adds hydrogen peroxide, and the mass fraction of hydrogen peroxide is 27.5%;Waste water enters ozone contact tank 7 later, in ozone
Contact chamber stops reaction 40min, while to being aerated in ozone contact tank, the aeration quantity and hydrogen peroxide dosage mole of ozone
Than for 1:2-1:5, and the maximum dosage of ozone be 30ppm;Waste water enters to activated carbon filter 8 later, in active carbon filtration
Reaction 40min is stopped in pond 8, while activated carbon filter 8 is aerated, and ozonation aerated amount is 20ppm;It is useless after reaction
Water discharges.
Wherein, the effluent quality index of secondary settling tank is as follows: CODCrFor 150-180mg/L, total nitrogen 25mg/L-35mg/L;
Effluent quality index after denitrification bio-filter reacts is as follows: CODCrFor 110-130mg/L
Final outflow water water quality indicator is as follows: CODCr: 80mg/L is hereinafter, total nitrogen: 6-10mg/L.
Pass through above-mentioned experiment, it can be deduced that draw a conclusion: passing through the device, it is ensured that water outlet is lower than 80mg/L, total nitrogen
In 15mg/L hereinafter, reaching GB/T 4287-2012 textile dyeing and finishing industrial water pollution object discharge standard.
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
The range of the utility model protection all should belong in every other embodiment.
Claims (7)
1. a kind of advanced treatment apparatus for printing and dyeing wastewater, including secondary settling tank (1), denitrification bio-filter (2), discharge bay (3), air bearing
Pond (4), fibre turntable filter chamber (5), rapidly miscible pool (6), ozone contact tank (7), activated carbon filter (8), air accumulator (11) and
The ozone generator (12) being connected with air accumulator, it is characterised in that: rapidly miscible pool (6) top is equipped with hydrogen peroxide and adds pipe
Road (61);The ozone generator (12) is connected with the first shunt pipe for shunting general pipeline (121), being connected with shunting general pipeline
(122) and the second shunt pipe (123);First shunt pipe (122) is connected with the ozone contact tank (7), and described
Two shunt pipes (123) are connected with the activated carbon filter (8).
2. a kind of advanced treatment apparatus for printing and dyeing wastewater according to claim 1, it is characterised in that: the activated carbon filter
(8) there is filler and aeration plate, which is quartz sand and granular activated carbon, second shunt pipe (123) and the exposure in
Gas disk is connected.
3. a kind of advanced treatment apparatus for printing and dyeing wastewater according to claim 1, it is characterised in that: the denitrification biological filter
There is filler, which is haydite in pond (2).
4. a kind of advanced treatment apparatus for printing and dyeing wastewater according to claim 1, it is characterised in that: the denitrification biological filter
Pond (2) lower part is equipped with backwash air inlet pipe (21) and backwash water inlet pipe (22), backwash air inlet pipe (21) connection first
Air blower (9), the backwash water inlet pipe (22) are connected with the discharge bay (3).
5. a kind of advanced treatment apparatus for printing and dyeing wastewater according to claim 1, it is characterised in that: flotation tank (4) bottom
Portion connects a sludge pipe (41).
6. a kind of advanced treatment apparatus for printing and dyeing wastewater according to claim 1, it is characterised in that: the activated carbon filter
(8) bottom is equipped with air inlet pipe (81) and recoil water pipe (82), and the air inlet pipe (81) connects the second air blower (13).
7. a kind of advanced treatment apparatus for printing and dyeing wastewater according to claim 1, it is characterised in that: the ozone contact tank
(7) two upper spacers (71) are equipped in so that ozone contact tank is divided into 3 secondary reaction ponds;First shunt pipe (122)
3 are set as, 3 the first shunt pipes (122) correspond with 3 secondary reaction ponds be connected to respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820442321.0U CN208857088U (en) | 2018-03-29 | 2018-03-29 | A kind of advanced treatment apparatus for printing and dyeing wastewater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820442321.0U CN208857088U (en) | 2018-03-29 | 2018-03-29 | A kind of advanced treatment apparatus for printing and dyeing wastewater |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208857088U true CN208857088U (en) | 2019-05-14 |
Family
ID=66410391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201820442321.0U Expired - Fee Related CN208857088U (en) | 2018-03-29 | 2018-03-29 | A kind of advanced treatment apparatus for printing and dyeing wastewater |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208857088U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110204134A (en) * | 2019-06-25 | 2019-09-06 | 绍兴柯桥江滨水处理有限公司 | A kind of the efficient ozone catalytic oxidation advanced treatment technique and device of dyeing waste water |
-
2018
- 2018-03-29 CN CN201820442321.0U patent/CN208857088U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110204134A (en) * | 2019-06-25 | 2019-09-06 | 绍兴柯桥江滨水处理有限公司 | A kind of the efficient ozone catalytic oxidation advanced treatment technique and device of dyeing waste water |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103058372B (en) | Down-flow integrated nitrification and denitrification aeration biological filtering device and method | |
CN1312063C (en) | Method for removing ammonia nitrogen from sewage in subzone | |
CN204779148U (en) | Coking wastewater advanced treatment and recycling system | |
CN102775029A (en) | Advanced municipal wastewater treatment system and method | |
CN105858950A (en) | Dyeing wastewater advanced treatment method and device by using ozone, oxydol and activated carbon | |
CN101386439B (en) | Technique for processing organic wastewater by atmospheric catalytic oxidation at low-temperature | |
CN202046964U (en) | High-efficiency sewage treating device | |
CN208857088U (en) | A kind of advanced treatment apparatus for printing and dyeing wastewater | |
CN103833189A (en) | Equipment and process for deeply treating coal gas wastewater | |
CN201648186U (en) | Composite membrane bioreactor | |
CN106957132B (en) | Method and device for treating printing and dyeing wastewater by combining rotary oxidation ditch process with ozone activated carbon | |
CN203820567U (en) | Device for deep treatment of printing and dyeing wastewater by multi-phase combined catalytic oxidation | |
CN210457807U (en) | High-efficient ozone catalytic oxidation advanced treatment unit of printing and dyeing wastewater | |
CN202808537U (en) | Town sewage deep treatment system | |
CN202688153U (en) | Deep treatment device of municipal sewage | |
CN208471814U (en) | System for advanced treatment of dyeing wastewater | |
CN205616677U (en) | Ozone, hydrogen peroxide solution and active carbon are to printing and dyeing wastewater advanced treatment unit | |
CN108439710A (en) | System for advanced treatment of dyeing wastewater | |
CN104984572A (en) | Efficient active flowing bed purifier | |
CN202022787U (en) | Minitype efficient composite type ammonia nitrogen removal equipment for domestic sewage | |
CN211078800U (en) | System for treating regenerated waste liquid of targeted nitrogen and phosphorus removal resin | |
CN201648121U (en) | Horizontal submerged flow artificial wet land | |
CN211813791U (en) | Organic waste water photocatalysis processing apparatus | |
CN108911259B (en) | System and process for treating polyvinyl chloride organic wastewater | |
CN108751573B (en) | BAME treatment and recycling method for printing and dyeing wastewater |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |