CN108503138A - A kind of large size town domestic sewage processing system - Google Patents
A kind of large size town domestic sewage processing system Download PDFInfo
- Publication number
- CN108503138A CN108503138A CN201810297806.XA CN201810297806A CN108503138A CN 108503138 A CN108503138 A CN 108503138A CN 201810297806 A CN201810297806 A CN 201810297806A CN 108503138 A CN108503138 A CN 108503138A
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- domestic sewage
- processing system
- town domestic
- sewage processing
- sludge
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- 239000010865 sewage Substances 0.000 title claims abstract description 40
- 238000012545 processing Methods 0.000 title claims abstract description 26
- 239000010802 sludge Substances 0.000 claims abstract description 37
- 230000003647 oxidation Effects 0.000 claims abstract description 24
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 18
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000004062 sedimentation Methods 0.000 claims abstract description 10
- 238000005276 aerator Methods 0.000 claims description 10
- 230000008719 thickening Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 18
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 10
- 239000011574 phosphorus Substances 0.000 abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 241000894006 Bacteria Species 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 229920000388 Polyphosphate Polymers 0.000 description 3
- 229920000037 Polyproline Polymers 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000001205 polyphosphate Substances 0.000 description 3
- 235000011176 polyphosphates Nutrition 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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
- C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention discloses a kind of large-scale town domestic sewage processing systems, including between sequentially connected throttling overflow well, coarse rack, between lift pump room, fine fack, just between heavy distribution well, primary sedimentation tank, oxidation ditch, two heavy distribution wells, secondary settling tank and disinfection water outlet, it selects A2O techniques by BOD5, SS in sanitary sewage and existing nitrogen and phosphorus removes one by one in a variety of manners, sludge settling is good, is not easy to expand, complete equipment system run all right, the extensive integrated purifying processing for realizing treatment of town sewage and sludge, is discharged after processing and reaches《Urban wastewater treatment firm pollutant emission standard》Primary standard B standard, the present invention are suitable for town domestic sewage treatment technology.
Description
Technical field
The present invention relates to town domestic sewage processing technology field, more particularly to a kind of large-scale town domestic sewage processing system
System.
Background technology
China has a vast territory, and natural conditions and the level of economic development differ greatly, downtown areas feature, the industrial structure and master
Want function also different, therefore, the characteristic of town sewage, discharge water body situation, design land used, selects technique at collection mode
Etc. being all different.Currently, China there is no, for Small Town Wastewater processing engineering, (treatment scale is less than 20,000 ton per days, focuses mostly on
2000~5000 ton per days) live Drainage Design specification, standard, regulation etc., still use it is existing in, extensive sewage disposal
The relevant criterion of engineering finds that there are many problems in engineering design.
Town sewage be mainly derived from town dweller life in sewage, each industrial enterprise manufacture during generate
Production waste water and the contaminated surface water of cities and towns precipitation and part this 3 aspect.The dirt generated in town dweller's daily life
Water includes the sewage that the facilities such as residential households, hotel, institutional settings, school, market are discharged due to resident's daily routines, such as
Wash vegetables cook, take a shower, flushing the toilet.The water quality characteristics of this kind of sewage be often contain higher organic matter, as starch, protein,
The inorganic matters such as high-quality etc. and nitrogen, phosphorus, in addition, also containing pathogenic microorganism and more suspended matter.
The problems of engineering design of town sewage can cause the natural environment and quality of life in cities and towns, the serious hair for restricting cities and towns
Exhibition is horizontal, therefore designs that a kind of standard reaches a standard, technique is suitble to and the efficient extensive town domestic sewage processing system of processing
It is extremely urgent.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of large-scale town domestic sewage processing system,
Selecting A2O techniques, existing nitrogen and phosphorus remove one by one by BOD5, SS in sanitary sewage and in a variety of manners, sludge settling is good,
It is not easy to expand, complete equipment system run all right, the extensive integrated purifying processing for the treatment of of town sewage and sludge is realized, after processing
Water outlet reaches《Urban wastewater treatment firm pollutant emission standard》Primary standard B standard.
In order to achieve the above objectives, the technical solution adopted by the present invention to solve the technical problems is：A kind of life of large size cities and towns
Sewage disposal system living, including between sequentially connected throttling overflow well, coarse rack, between lift pump room, fine fack, just heavy water distribution
Between well, primary sedimentation tank, oxidation ditch, two heavy distribution wells, secondary settling tank and disinfection water outlet；
The secondary settling tank is connected with sludge centralized pool, and the sludge centralized pool is connected with thickening room, the sludge collection
Excess sludge pump group and returned sludge pump group are equipped in middle pond, the returned sludge pump group is connected to oxidation ditch；
The oxidation ditch is oval and includes the outer fissure being arranged from outside to inside, middle ditch, septal fossula and anaerobic pond, described outer
It is equipped with a propeller in ditch, middle ditch, septal fossula and anaerobic pond, the side of the anaerobic pond is equipped with wet well, in the anaerobic pond
Equipped with a pair of of blender, the both sides of the outer fissure are traversed equipped with a monomer rotary disk aerator, and the oxidation ditch is interior to be equipped with a pair
The rotary disk aerator group of outer fissure, middle ditch and septal fossula is linearly traversed, two rotary disk aerator groups are mutually parallel and about oxygen
Change ditch central symmetry；
Include Pneumatic control cabinet, ballast cabinet, central control cabinet and disinfection by ultraviolet light pond between the disinfection water outlet.
Preferably, the thickening room includes sequentially connected mud storage pool, dewaterer and conveyer, the dewaterer
It is connected with flushing pump, air compressor machine and chemicals dosing plant.
Preferably, the number of the oxidation ditch and secondary settling tank is 2.
Preferably, overflow pipe is equipped between throttling overflow well and the fine fack, between the coarse rack between fine fack
Inside it is equipped with shaftless screw slag conveyer.
Preferably, the primary sedimentation tank is connected with spiral sand separator and Roots blower unit.
Preferably, the center of the secondary settling tank is equipped with mud scraper.
Preferably, being connected with water flow meter between the secondary settling tank and disinfection water outlet.
Due to the application of the above technical scheme, the present invention has following advantageous effect compared with prior art：
1. a pair town sewage is fully pre-processed, and is made by primary sedimentation tank, oxidation ditch, secondary settling tank etc. using A2O techniques
Anaerobism, anoxic, aerobic three kinds of different environmental conditions and microorganism species type carry out organic cooperation, and it is organic to be provided simultaneously with removal
The function of object, denitrogenation dephosphorizing, by BOD5, SS in town domestic sewage and in a variety of manners existing nitrogen and phosphorus remove one by one, disappear
It is discharged COD after poison and is below 20mg/L less than 60mg/L, BOD5 and SS, total nitrogen is less than 20mg/L, and total phosphorus is less than 1mg/L, reaches
《Urban wastewater treatment firm pollutant emission standard》Primary standard B standard；
2. complete equipment system run all right, sludge settling is good, is not easy to expand, dehydration decontamination processing is abundant, realizes
The integrated purifying for the treatment of of town sewage and sludge is handled, and equipment assembly is reasonable, and technological means is complete, and purified treatment ability protrudes；
3. total hrt of the present invention is less than other similar techniques, treatment effeciency is high, and processing step is sound, and equipment is complete
Kind, sewage loads amount is big, is suitble to large town or more town sewage combined governances, has a extensive future, and is conducive to promote.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present embodiment.
Fig. 2 is the structural schematic diagram of oxidation ditch in the present embodiment.
Fig. 3 is the structural schematic diagram between disinfection water outlet in the present embodiment.
Fig. 4 is the structural schematic diagram in thickening room in the present embodiment.
In figure：1, throttle overflow well；2, between coarse rack；3, lift pump room；4, between fine fack；5, just sink distribution well；6, just
Heavy pond；7, oxidation ditch；8, two heavy distribution well；9, secondary settling tank；10, between disinfection water outlet；11, sludge centralized pool；12, thickening
Room；13, excess sludge pump group；14, returned sludge pump group；15, outer fissure；16, middle ditch；17, septal fossula；18, anaerobic pond；19, it promotes
Device；20, wet well；21, blender；22, monomer rotary disk aerator；23, rotary disk aerator group；24, Pneumatic control cabinet；25, town
Flow device cabinet；26, central control cabinet；27, disinfection by ultraviolet light pond；28, mud storage pool；29, dewaterer；30, conveyer；31, flushing pump；
32, air compressor machine；33, chemicals dosing plant；34, overflow pipe；35, shaftless screw slag conveyer；36, spiral sand separator；37, Roots blower
Group；38, mud scraper；39, water flow meter.
Specific implementation mode
With reference to specific embodiment, present disclosure is described in further detail：
As shown in Figure 1, the present embodiment is a kind of large-scale town domestic sewage processing system, including sequentially connected throttling is overflow
Flow well 1, between coarse rack 4 between 2, lift pump room 3, fine fack, just heavy distribution well 5, primary sedimentation tank 6, oxidation ditch 7, two heavy distribution wells 8,
10 between secondary settling tank 9 and disinfection water outlet；Secondary settling tank 9 is connected with sludge centralized pool 11, and sludge centralized pool 11 is connected with thickening room
12, sludge centralized pool 11 is interior to be equipped with excess sludge pump group 13 and returned sludge pump group 14, and returned sludge pump group 14 is connected to oxidation ditch
7。
As shown in Fig. 2, oxidation ditch 7 is oval and includes the outer fissure 15 being arranged from outside to inside, middle ditch 16,17 and of septal fossula
Anaerobic pond 18 is equipped with a propeller 19 in outer fissure 15, middle ditch 16, septal fossula 17 and anaerobic pond 18, and the side of anaerobic pond 18 is equipped with
Wet well 20, anaerobic pond 18 is interior to be equipped with a pair of of blender 21, and the both sides of outer fissure 15 are traversed equipped with a monomer rotary disk aerator 22,
A pair of rotary disk aerator group 23 for linearly traversing outer fissure 15, middle ditch 16 and septal fossula 17, two plate-spinning aerations are equipped in oxidation ditch 7
Unit 23 is mutually parallel and about 7 central symmetry of oxidation ditch.
As shown in figure 3,10 including Pneumatic control cabinet 24, ballast cabinet 25, central control cabinet 26 and ultraviolet between disinfection water outlet
Line sterilization pool 27.
As shown in figure 4, thickening room 12 includes sequentially connected mud storage pool 28, dewaterer 29 and conveyer 30, dehydration
Machine 29 is connected with flushing pump 31, air compressor machine 32 and chemicals dosing plant 33.
In the present embodiment, the number of oxidation ditch 7 and secondary settling tank 9 is 2；4 are all provided between throttling overflow well 1 and fine fack
Have an overflow pipe 34, between coarse rack 4 between 2 and fine fack in be equipped with shaftless screw slag conveyer 35；Primary sedimentation tank 6 is connected with spiral sub-sand
Machine 36 and Roots blower unit 37；The center of secondary settling tank 9 is equipped with mud scraper 38；It is connected between 10 between secondary settling tank 9 and disinfection water outlet
There is water flow meter 39.
The operation principle of the present embodiment is：Town domestic sewage is passed sequentially through 2 between coarse rack by the overflow well 1 that throttles, is thin
Stop is precipitated in primary sedimentation tank 64 between grid, after first heavy distribution well 5, is carried out at A2O techniques into oxidation ditch 7 and secondary settling tank 9 afterwards
Reason, sewage enters 10 between disinfection water outlet after the processing of secondary settling tank 9, and 9 sludge of secondary settling tank enters sludge centralized pool 11, sludge centralized pool 11
Middle partial sludge is back to oxidation ditch 7 by returned sludge pump group 14 and realizes that circularly purifying, sludge centralized pool 11 pass through remaining dirty
Dredge pump group 13 connects thickening room 12 and realizes cleaning dosing and thickening.The principle of wherein A2O techniques is：A2O biologies are de-
In the activated sludge of nitrogen dephosphorization system, flora is mainly made of nitrifier and denitrifying bacterium, polyP bacteria；In aerobic section, nitrification is thin
Bacterium by the ammonia nitrogen in becoming a mandarin and organic nitrogen ammonification at ammonia nitrogen, acted on by biological nitration, be converted to nitrate；In anoxic section,
The interior nitrate brought into that flows back by biological denitrification, is converted to nitrogen and escaped into air by denitrifying bacteria, to
Achieve the purpose that denitrogenation；In anaerobism section, the degradable organic matters such as polyP bacteria discharges phosphorus, and absorbs lower fatty acid；And good
Oxygen section, polyP bacteria excess absorbs phosphorus, and by the discharge of excess sludge, phosphorus is removed.
The present invention innovation be：Town sewage is fully pre-processed, and using A2O techniques by primary sedimentation tank 6,
Oxidation ditch 7, secondary settling tank 9 etc. make anaerobism, anoxic, aerobic three kinds of different environmental conditions and microorganism species type carry out organic
Cooperation, is provided simultaneously with the function of organics removal, denitrogenation dephosphorizing, deposits BOD5, SS in town domestic sewage and in a variety of manners
Nitrogen and phosphorus remove one by one, COD is discharged after disinfection and is below 20mg/L less than 60mg/L, BOD5 and SS, total nitrogen is less than 20mg/
L, total phosphorus are less than 1mg/L, reach《Urban wastewater treatment firm pollutant emission standard》Primary standard B standard；Complete equipment system
Stable, sludge settling is good, is not easy to expand, and dehydration decontamination processing is abundant, and the integration for realizing treatment of town sewage and sludge is net
Change is handled, and equipment assembly is reasonable, and technological means is complete, and purified treatment ability protrudes；Total hrt of the present invention is less than same
Other techniques of class, treatment effeciency is high, and processing step is sound, and equipment record, sewage loads amount is big, is suitble to large town or more cities and towns
Sewage combined governance, has a extensive future, and is conducive to promote.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be implemented, and it is not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by Spirit Essence should all cover within the scope of the present invention.
Claims (7)
1. a kind of large size town domestic sewage processing system, it is characterised in that：Including sequentially connected throttling overflow well (1), slightly
(4), just heavy distribution well (5), primary sedimentation tank (6), oxidation ditch (7), two heavy water distributions between (2), lift pump room (3), fine fack between grid
Between well (8), secondary settling tank (9) and disinfection water outlet (10)；
The secondary settling tank (9) is connected with sludge centralized pool (11), and the sludge centralized pool (11) is connected with thickening room (12),
Excess sludge pump group (13) and returned sludge pump group (14), the returned sludge pump group are equipped in the sludge centralized pool (11)
(14) connection oxidation ditch (7)；
The oxidation ditch (7) is oval and includes the outer fissure (15) being arranged from outside to inside, middle ditch (16), septal fossula (17) and detests
Oxygen pond (18), the outer fissure (15), middle ditch (16), septal fossula (17) and anaerobic pond (18) are interior to be equipped with a propeller (19), described
The side of anaerobic pond (18) is equipped with wet well (20), and a pair of of blender (21), the outer fissure are equipped in the anaerobic pond (18)
(15) both sides are traversed equipped with a monomer rotary disk aerator (22), be equipped in the oxidation ditch (7) it is a pair of linearly traverse it is outer
The rotary disk aerator group (23) of ditch (15), middle ditch (16) and septal fossula (17), two rotary disk aerator groups (23) are mutually parallel
And about oxidation ditch (7) central symmetry；
(10) include Pneumatic control cabinet (24), ballast cabinet (25), central control cabinet (26) and ultraviolet light between the disinfection water outlet
Sterilization pool (27).
2. a kind of large-scale town domestic sewage processing system according to claim 1, it is characterised in that：The thickening
Room (12) includes sequentially connected mud storage pool (28), dewaterer (29) and conveyer (30), and the dewaterer (29) is connected with punching
Wash pump (31), air compressor machine (32) and chemicals dosing plant (33).
3. a kind of large-scale town domestic sewage processing system according to claim 1, it is characterised in that：The oxidation ditch
(7) and the number of secondary settling tank (9) is 2.
4. a kind of large-scale town domestic sewage processing system according to claim 1, it is characterised in that：The throttling overflow
Well (1) (4) between fine fack is equipped with overflow pipe (34), and (2) are equipped with shaftless spiral shell between fine fack in (4) between the coarse rack
Revolve slag conveyer (35).
5. a kind of large-scale town domestic sewage processing system according to claim 1, it is characterised in that：The primary sedimentation tank
(6) spiral sand separator (36) and Roots blower unit (37) are connected with.
6. a kind of large-scale town domestic sewage processing system according to claim 1, it is characterised in that：The secondary settling tank
(9) center is equipped with mud scraper (38).
7. a kind of large-scale town domestic sewage processing system according to claim 1, it is characterised in that：The secondary settling tank
(9) between disinfection water outlet water flow meter (39) is connected between (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297806.XA CN108503138A (en) | 2018-04-04 | 2018-04-04 | A kind of large size town domestic sewage processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297806.XA CN108503138A (en) | 2018-04-04 | 2018-04-04 | A kind of large size town domestic sewage processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108503138A true CN108503138A (en) | 2018-09-07 |
Family
ID=63380479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297806.XA Pending CN108503138A (en) | 2018-04-04 | 2018-04-04 | A kind of large size town domestic sewage processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108503138A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817235A (en) * | 2015-04-29 | 2015-08-05 | 浩蓝环保股份有限公司 | Town sewage treatment system and town sewage treatment method for high and cold regions |
| CN205528001U (en) * | 2016-04-15 | 2016-08-31 | 重庆市合川排水有限公司 | A high -efficient oxidation ditch for promoting oxygen dissolves |
-
2018
- 2018-04-04 CN CN201810297806.XA patent/CN108503138A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817235A (en) * | 2015-04-29 | 2015-08-05 | 浩蓝环保股份有限公司 | Town sewage treatment system and town sewage treatment method for high and cold regions |
| CN205528001U (en) * | 2016-04-15 | 2016-08-31 | 重庆市合川排水有限公司 | A high -efficient oxidation ditch for promoting oxygen dissolves |
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Application publication date: 20180907 |
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