CN114772736B - Improved constructed wetland sewage treatment system - Google Patents
Improved constructed wetland sewage treatment system Download PDFInfo
- Publication number
- CN114772736B CN114772736B CN202210385268.6A CN202210385268A CN114772736B CN 114772736 B CN114772736 B CN 114772736B CN 202210385268 A CN202210385268 A CN 202210385268A CN 114772736 B CN114772736 B CN 114772736B
- Authority
- CN
- China
- Prior art keywords
- filler
- layer
- iron
- functional
- water
- 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.)
- Active
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 55
- 239000000945 filler Substances 0.000 claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000008213 purified water Substances 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 161
- 238000005273 aeration Methods 0.000 claims description 68
- 239000012767 functional filler Substances 0.000 claims description 63
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims description 58
- 239000004576 sand Substances 0.000 claims description 43
- 239000004575 stone Substances 0.000 claims description 37
- 241000196324 Embryophyta Species 0.000 claims description 26
- 239000002689 soil Substances 0.000 claims description 25
- 238000002955 isolation Methods 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 15
- 235000007164 Oryza sativa Nutrition 0.000 claims description 10
- 235000009566 rice Nutrition 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 claims description 8
- 241000186145 Corynebacterium ammoniagenes Species 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 244000205574 Acorus calamus Species 0.000 claims description 3
- 244000291564 Allium cepa Species 0.000 claims description 3
- 235000002732 Allium cepa var. cepa Nutrition 0.000 claims description 3
- 235000011996 Calamus deerratus Nutrition 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 241000721692 Lythrum Species 0.000 claims description 3
- 241000233948 Typha Species 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000006396 nitration reaction Methods 0.000 abstract description 2
- 238000011049 filling Methods 0.000 description 27
- 230000000694 effects Effects 0.000 description 15
- 239000012528 membrane Substances 0.000 description 12
- 238000012856 packing Methods 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 241000209094 Oryza Species 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 235000013339 cereals Nutrition 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XTCQUBCCCSJAKJ-UHFFFAOYSA-N ethylbenzene Chemical compound CCC1=CC=CC=C1.CCC1=CC=CC=C1 XTCQUBCCCSJAKJ-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000015816 nutrient absorption Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003248 secreting effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The utility model provides an improvement formula constructed wetland sewage treatment system, includes water distribution canal and catchment canal, connects the water distribution canal and is equipped with and is used for supplying sewage to vertically run through, in order to carry out purification treatment's first function filler district to sewage, and the intercommunication first function filler district is equipped with and supplies the second function filler district that first function filler district purified water level runs through, and the catchment canal is connected the second function filler district, in order to collect the purified water in second function filler district. According to the invention, the sewage flows longitudinally through the filler to form vertical flow, so that the vertical flow has better nitration capability, and then flows horizontally through the filler to form horizontal undercurrent.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an improved constructed wetland sewage treatment system.
Background
The artificial wet land is one technology of treating sewage and sludge with the synergistic effect of soil, artificial medium, plant and microbe. The action mechanism comprises adsorption, detention, filtration, oxidation reduction, precipitation, microbial decomposition, conversion, plant shielding, residue accumulation, transpiration moisture and nutrient absorption and the action of various animals, thereby realizing the aim of purifying water quality. Not only can afforest the land and improve the regional climate, but also can increase the oxygen content in the air and promote the virtuous circle of the ecological environment. Therefore, the constructed wetland is often used for treating the tail water of municipal sewage plants or is applied to the practice of improving the water quality of rivers, lakes and reservoirs.
However, the sewage treatment system of the traditional constructed wetland has a simple structure, low sewage removal rate and is easily limited by seasons, so that the system is often used for treating municipal sewage treatment plant tail water with low organic content and simple carbon and nitrogen and other nutrient components. However, for tail water which is difficult to treat, contains a large amount of organic matters and has relatively complex components (for example, tail water in petrochemical industry, which contains various components such as benzene, phenols, petroleum, heavy metals and the like), the conventional artificial wetland sewage treatment system has very general effect of removing the organic matters from the wastewater. In addition, the aerobic nitrification reaction is a main speed limiting step of biological denitrification of the constructed wetland, and the traditional constructed wetland is supplemented with a certain amount of dissolved oxygen by means of the oxygen-secreting capability of the plant root system of the constructed wetland, so that the requirements of organic matter degradation and nitrification in the constructed wetland on the dissolved oxygen are hardly met at the same time, the treatment effect of the traditional constructed wetland treatment system on tail water is limited, and popularization and application of the traditional constructed wetland sewage treatment system are restricted.
Disclosure of Invention
The invention aims to provide an improved constructed wetland sewage treatment system, which solves the problems that the traditional constructed wetland sewage treatment system cannot effectively treat tail water containing more organic matters, complex components and high pollutant concentration.
The technical scheme adopted by the invention for achieving the purpose is as follows:
the utility model provides an improvement formula constructed wetland sewage treatment system, includes water distribution canal and catchment canal, connects the water distribution canal and is equipped with and is used for supplying sewage to vertically run through, in order to carry out purification treatment's first function filler district to sewage, and the intercommunication first function filler district is equipped with and supplies the second function filler district that first function filler district purified water level runs through, and the catchment canal is connected the second function filler district, in order to collect the purified water in second function filler district.
Further, the first functional filler area comprises a first planting soil layer, a first coarse sand isolation layer, an iron-carbon mixed filler layer and a first coarse sand protection layer, wherein the first planting soil layer, the first coarse sand isolation layer, the iron-carbon mixed filler layer and the first coarse sand protection layer are arranged from top to bottom, and the iron-carbon mixed filler layer is used for carrying out electrolytic treatment on wastewater by utilizing potential difference generated by the iron-carbon mixed filler layer.
Further, the iron-carbon mixed filler layer comprises a first iron-carbon mixed filler layer and a second iron-carbon mixed filler layer, wherein the first iron-carbon mixed filler layer and the second iron-carbon mixed filler layer are arranged from top to bottom, the filler particle size of the second iron-carbon mixed filler layer is larger than that of the filler in the first iron-carbon mixed filler layer, and the iron-carbon content in the first iron-carbon mixed filler layer is smaller than that in the second iron-carbon mixed filler layer.
Further, the second functional filling area is provided with a deep bed aeration filling area for the sewage to horizontally pass through, and an aeration pipe used for communicating an air source to aerate the deep bed aeration filling area is arranged in the deep bed aeration filling area.
Further, the bottom of the deep-bed aeration filling area is concave, the bottom end of the deep-bed aeration filling area is lower than the bottom of the second functional filling area, and the aeration section of the aeration pipe is arranged at the bottom of the deep-bed aeration filling area.
Further, the deep bed aeration packing area comprises a third planting soil layer, a third coarse sand isolation layer, a third rice stone layer, a fifth graded broken stone layer, an isolation net, a hollow packing layer, a third impermeable membrane and a third coarse sand protection layer which are sequentially arranged from top to bottom.
Further, the second functional filler area comprises a second planting soil layer, a second coarse sand isolation layer, a second rice stone layer, a second functional filler area graded broken stone layer, a second impermeable film and a second coarse sand protection layer which are sequentially arranged from top to bottom.
Further, the second functional filler zone graded broken stone layer comprises a fourth coarse sand protection layer, a fourth graded broken stone layer and a third graded broken stone layer which are arranged from bottom to top.
Further, the first planting soil layer and the second planting soil layer are respectively planted with wetland plants, the wetland plants are one or more of cane shoots, green onions, typha, calamus, lythrum, and core grass, and the planting density is 15-25 plants/m 2 。
Further, the graded broken stone layers of the second functional filler areas are inoculated with Brevibacterium ammoniagenes.
The invention has the beneficial effects that:
1. the invention forms vertical flow by longitudinally flowing sewage through the filler, and the vertical subsurface flow wetland water depth, and then horizontally flowing sewage through the filler to form horizontal subsurface flow.
2. According to the invention, the iron-carbon mixed filler layer is arranged in the first functional filler area, the waste water is electrolyzed by utilizing potential difference generated by iron-carbon, the potential difference generated by iron-carbon is about 1.2V, a better primary cell effect can be formed, benzene ring organic matters are decyclized under the electrolysis action, the decyclized matters can be utilized by plants and microorganisms in the wetland, and pollutants difficult to treat in the waste water can be effectively removed by combining the synergistic action of the plants and the microorganisms in the wetland system, so that the advanced treatment of tail water in petrochemical factories is facilitated.
3. The deep-bed aeration filling area is arranged to form the local sinking aeration area, so that the aerated air can be effectively cut, the aeration is more uniform, the aeration effect is effectively improved, the effective water depth of the constructed wetland can be deepened, the dissolved oxygen content in the constructed wetland can be effectively improved, the smooth proceeding of the nitration reaction is ensured, and the denitrification efficiency of the constructed wetland is improved.
4. The hollow filler arranged in the deep-bed aeration filler zone can effectively increase the porosity of the whole deep-bed aeration filler zone, the relative porosity of the traditional wetland filler is about 25%, the hollow fiber balls can increase the porosity from 25% to more than 80%, the fiber balls are small in occupied volume, after the porosity is increased, the wetland can treat more water in the same time, the treatment efficiency of the wetland is enhanced, the occupied area is reduced, sufficient root system extension space is provided for wetland plants, the water quality purification effect is improved, the maintenance of an aeration system is facilitated, and the maintenance cost of the wetland is reduced.
5. According to the invention, through the arrangement of the multifunctional areas, the functional areas are mutually dependent and mutually reinforced, and the treatment process is improved through the progressive relation, so that the sewage which is difficult to treat, contains complex organic matters and has high concentration can be reliably and effectively purified, the treatment efficiency is improved, and the treatment object and the treatment range of the constructed wetland can be greatly enlarged compared with the traditional wetland system which can only treat simple sewage.
6. According to the invention, through the arrangement of the isolation net, the fillers can be effectively blocked from being crossed, the change of the function areas in the later operation is reduced, the blocking caused by the fact that the fillers above the hollow filler areas fall into the hollow filler areas is prevented, meanwhile, the isolation net can cut and redistribute water flow again, so that water distribution is more uniform, water flow short circuit is further prevented, and wetland blocking is prevented.
Description of the drawings:
FIG. 1 is a schematic diagram of the overall structure of an improved constructed wetland sewage treatment system according to an embodiment;
FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;
FIG. 3 is a schematic cross-sectional structural view of a first functional packing region;
FIG. 4 is a schematic cross-sectional structural view of a second functional packing region;
FIG. 5 is a schematic cross-sectional structural view of a deep bed aerated packing zone.
The marks in the figure: 1. rammed earth foundation 2, first functional filler zone 201, first planting soil layer, 202, first coarse sand isolating layer, 203, first coarse sand isolating layer, 204, first stage crush stone layer, 205, first iron carbon mixed filler layer, 206, second iron carbon mixed filler layer, 207, second stage crush stone layer, 208, first coarse sand protecting layer, 209, first impermeable membrane, 3, wetland plant, 4, water distribution channel, 401, water distribution pipe, 402, water collecting pipe, 5, water collecting channel, 501, water collecting pipe, 6, evacuation pipe, 7, second functional filler zone, 701, second planting soil layer, 702, second coarse sand isolating layer, 703, second rice stone layer, 704, third stage crush stone layer, 705, fourth stage crush stone layer, 706, fourth stage coarse sand protecting layer, 707, second membrane, 708, second coarse sand protecting layer, 8, water distribution filler zone, 9, deep bed aeration filler zone, 901, third planting soil layer, 902, third coarse sand isolating layer, 904, third rice isolating layer, 903, fifth stone layer, 905, third coarse sand isolating layer, 10, and 906, aerated water collecting zone, and sealing zone, wherein the first coarse sand isolating layer is formed by the first stage crush stone layer, the second coarse sand isolating layer is formed by the first coarse sand isolating layer.
Detailed Description
The invention will be further described with reference to the drawings and detailed description, wherein, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention provides a concrete embodiment of an improved constructed wetland sewage treatment system, which comprises:
referring to fig. 1 to 2, the constructed wetland sewage treatment system of this embodiment comprises a water distribution channel 4 for supplying sewage and a water collection channel 5 for collecting water purified by the sewage treatment system, a first functional filler zone 2 for passing through the sewage longitudinally to purify the sewage and a second functional filler zone 7 for passing through the first functional filler zone 2 horizontally, wherein the longitudinal pass refers to the sewage flowing from the bottom to the top of the first functional filler zone 2, the horizontal pass refers to the sewage flowing horizontally from one end to the other end of the second functional filler zone 7, and when in particular application, the first functional filler zone 2 is connected with the water distribution channel 4 through a plurality of water distribution pipes 401 arranged at the bottom of the first functional filler zone 2 to input sewage to the bottom of the first functional filler zone 2, the upper part of the first functional filler zone 2 is provided with a plurality of water collecting pipes 402 for collecting sewage longitudinally penetrating through the first functional filler zone 2, the water outlet section of the water collecting pipes 402 is arranged at one end of the second functional filler zone 7 and is used for conveying purified water of the first functional filler zone 2 to the second functional filler zone 7 for purification treatment, the purified water of the first functional filler zone 2 horizontally penetrates through the second functional filler zone 7, the other end of the second functional filler zone 7 is provided with a water collecting pipe 501, the water collecting pipe 501 is communicated with a water collecting channel 5 and conveys the purified water of the second functional filler zone 7 after collecting, in the embodiment, the water distributing pipe 401, the water collecting pipe 402 and the water collecting pipe 501 are respectively provided with 5, 6 and 1 sets of perforated pipes, the perforated pipes are provided with water holes with diameters of 20mm, the interval of 100mm, the water holes are downwards inclined at 45 degrees in a crossing way, as can be understood, each set of perforated pipe is correspondingly provided with an electric valve and a manual valve for water inlet and water outlet respectively.
The sewage flows longitudinally through the filler to form vertical flow, so that the uniformity of water flow is improved, a dead water area is avoided, the effective area of the wetland is utilized to the maximum extent, the wetland blockage can be reduced through the design of the vertical flow, the better nitrification capacity is further achieved, then the sewage flows horizontally through the filler to form horizontal undercurrent, and the removal effect of the indexes of pollutants such as BOD, COD, SS and heavy metals in the sewage is further improved.
Wherein, the two ends of the second functional filler area 7 are respectively provided with a water distribution filler area 8 and a water collecting filler area 10, the water outlet end of the water collecting pipe 402 is arranged in the water distribution filler area 8, the water collecting pipe 501 is arranged in the water collecting filler area 10, the porosity of the filler can be effectively improved by changing the arrangement of the filler within the range of 2 meters around the water distribution layer and the water collecting layer, the uniformity of water distribution and water collecting is enhanced, and the functions of preventing water flow short circuit and blocking are achieved.
In this embodiment, as shown in fig. 2 and 3, the first functional filler area 2 includes a first planting soil layer 201, a first coarse sand isolation layer 202, an iron-carbon mixed filler layer and a first coarse sand protection layer 208 that are disposed from top to bottom, where the first planting soil layer 201 is used for planting wetland plants, the thickness is about 200mm, the first coarse sand protection layer 208 is used for being laid on the rammed earth foundation 1 of the constructed wetland, the grain size can be 0.5-1mm, the thickness is 100mm, the first coarse sand isolation layer 202 is used for bearing the planting soil layer 201, the grain size can be set to 0.5-1mm, the thickness is 100mm, the iron-carbon mixed filler layer is used for performing electrolytic treatment on wastewater by using potential difference generated by self-contained iron-carbon, the potential difference generated by the iron-carbon is about 1.2V, a better primary cell effect can be formed, the benzene ring organic matters can be decomposed under the electrolytic action, degradation of benzene ring matters, phenols, petroleum organic pollutants and the like in the wastewater can be effectively removed by combining the synergistic effect of the plant and microorganism in the wetland system, and the wastewater can be conveniently treated in depth to the factory.
Referring to fig. 3, the iron-carbon mixed filler layer includes a first iron-carbon mixed filler layer 205 and a second iron-carbon mixed filler layer 206 with a filler particle size greater than that of the first iron-carbon mixed filler layer 205, where the first iron-carbon mixed filler layer 205 and the second iron-carbon mixed filler layer 206 are disposed from top to bottom, and the iron-carbon content in the first iron-carbon mixed filler layer 205 is smaller than that in the second iron-carbon mixed filler layer 206, for example, the first iron-carbon mixed filler layer 205 has a filler particle size of 30-50mm and a thickness of 200mm, the second iron-carbon mixed filler layer 206 has a filler particle size of 50-80mm and a thickness of 200mm, the iron-carbon content in the first iron-carbon mixed filler layer 205 is 20%, the iron-carbon content in the second iron-carbon mixed filler layer 206 is 30%, and by arranging the upper and lower iron-carbon mixed filler layers in a small and lower manner, so as to effectively reduce the possibility of downward movement of the upper filler by gravity, prevent the filler from stringing, and the iron-carbon content in the iron-carbon mixed filler layer is higher, the better the micro-electrolysis effect, but the higher the lower cost is implemented, the lower cost is better than the lower cost, and the lower cost is better than the upper cost and the upper cost can be removed by the fact that the upper cost is lower than the upper cost is actually and lower and the upper cost is lower.
Wherein, a first impermeable film 209 is arranged in the first coarse sand protective layer 208, a first rice stone layer 203 and a first level matched gravel layer 204 are arranged between the first coarse sand isolation layer 202 and the first coarse sand mixed filler layer 205 from top to bottom, the grain size of the first rice stone layer 203 is 1-5mm, the thickness is 100mm, the grain size of the first level matched gravel layer 204 is 10-30mm, the thickness is 100mm, a second level matched gravel layer 207 is arranged between the second iron carbon mixed filler layer 206 and the first coarse sand protective layer 208, the grain size of the second level matched gravel layer 207 is 80-120mm, and the thickness is about 400mm.
Referring to FIG. 4, in the present embodiment, the second functional filler region 7 includes a second coarse sand protecting layer 708, a second impermeable film 707, and a second functional filler sequentially arranged from bottom to topThe second coarse sand protective layer 708 is used for being paved on the rammed earth foundation 1 of the constructed wetland, the grain size can be 0.5-1mm, the thickness can be 100mm, the first impermeable membrane 209 and the second impermeable membrane 707 are made of high-density polyethylene materials and are used for impermeable, and the volume weight of the impermeable membrane is not less than 700g/m 2 A permeability coefficient of not more than 10 -6 m/s。
The graded broken stone layer of the second functional filler area comprises a fourth-grade coarse sand protection layer 706, a fourth-grade broken stone layer 705 and a third-grade graded broken stone layer 704 from bottom to top, wherein when the particle sizes of the fillers of the fourth-grade coarse sand protection layer 706, the fourth-grade broken stone layer 705 and the third-grade graded broken stone layer 704 are set, the particle size of the fourth-grade coarse sand protection layer 706 is 0.5-1mm, the thickness is 100mm, the particle size of the fourth-grade broken stone layer 705 is 30-80mm, the thickness is 400mm, the particle size of the third-grade graded broken stone layer 704 is 10-30mm, and the thickness is 200mm.
As shown in fig. 1 and 2, a deep-bed aeration filler zone 9 is arranged in the second functional filler zone 7, namely, the deep-bed aeration filler zone 9 is an independent zone inlaid in the second functional filler zone 7, which is different from the main body part of the second functional filler zone 7, the deep-bed aeration filler zone 9 can be arranged in the middle part of the second functional filler zone 7 and positioned in the middle section of the sewage flowing in the second functional filler zone 7, the filler of the deep-bed aeration filler zone 9 adopts the filler with the porosity larger than that in the surrounding second functional filler zone 7, the particle size and the type of the filler are different, after wetland plants are planted, the deep-bed aeration filler zone 9 and the plants cooperate to form a deep-bed aeration biological and plant cooperative functional zone, an aeration pipe 11 is arranged in the deep-bed aeration filler zone 9, the aeration pipe 11 is used for communicating an air source to perform aeration operation towards the deep-bed aeration filling area 9, sewage horizontally penetrates through the deep-bed aeration filling area 9 and then enters the rest part of the second functional filling area 7 after entering the second functional filling area 7, finally enters the water collecting channel 5 along the water collecting pipe 501 to finish water quality purification treatment in the constructed wetland, and when the water collecting pipe 501 is specifically arranged, three outlets of high, middle and low can be arranged in the vertical direction of a port through the three-way pipe, so that high, middle and low water level operation of the wetland is realized, the treatment capacity of the wetland can be increased during high water level operation, and the microbial environment inside the wetland filling can be improved through external air in the filling layer during operation, especially during low water level operation, so that the treatment efficiency is improved.
Referring to fig. 2, the rammed earth foundation 1 corresponding to the deep-bed aeration filling area 9 is concave, so that the bottom of the deep-bed aeration filling area 9 is concave, taking the example shown in fig. 2, the deep-bed aeration filling area 9 is in a trapezoid shape with large upper part and small lower part, the bottom of the deep-bed aeration filling area is lower than the bottom of the second functional filling area 2, the aeration section 1101 of the aeration pipe 11 is arranged at the bottom of the deep-bed aeration filling area 9, namely at the area of the deep-bed aeration filling area 9 lower than the second functional filling area 2, thereby forming a partial submerged aeration area, forming deep-bed aeration, and the nitrification and denitrification of microorganisms in the wetland are the main denitrification mechanism of the constructed wetland, wherein the aerobic nitrification is the main speed limiting step of biological denitrification of the constructed wetland, the dissolved oxygen in the traditional wetland is small, the aerobic bacteria are inhibited from performing the nitrification reaction, the dissolved oxygen content in the constructed wetland can be effectively improved through partial submerged aeration, the depth of the wetland is increased, the occupied area of the wetland is reduced, the sewage is increased, and the denitrification efficiency is improved.
In other embodiments, the deep-bed aerated packing zone 9 may be further configured as follows, and as shown in fig. 5, the deep-bed aerated packing zone 9 includes, sequentially from top to bottom, a third planting soil layer 901, a third coarse sand isolation layer 902, a third rice stone layer 903, a fifth graded broken stone layer 904, an isolation net 905, a hollow packing layer 906, a third impermeable membrane 907, and a third coarse sand protection layer 908, where the third planting soil layer 901 is the same as the first planting soil layer and the second planting soil layer, and has a thickness of about 200mm, the third coarse sand isolation layer 902 has a particle size of 0.5-1mm, a thickness of about 100mm, the third rice stone layer 903 has a particle size of 1-5mm, a thickness of about 100mm, the fifth graded broken stone layer 904 has a particle size of 10-30mm, a thickness of about 100mm, the hollow packing layer 906 forms a hollow packing layer with a thickness of about 1900mm, and the third impermeable membrane 907 may be the same as the first impermeable membrane and the second impermeable membrane.
The multi-layer filler of the deep-bed aeration filler zone 9 can effectively cut aeration and improve aeration effect, wherein the hollow filler layer can be hollow spherical plastic, such as hollow fiber balls, random movement of the spherical plastic is limited by the isolation net 905, dropping of soil layers above is prevented, mutual intersection of fillers in all functional zones is effectively blocked, change of later operation between the functional zones is reduced, the isolation net system realizes water flow re-cutting and redistribution, water distribution is more uniform, the water flow re-cutting and re-distribution device is an important ring for preventing water flow from being short-circuited and blocking, in addition, the isolation net is convenient for maintenance of a bottom aeration pipe, and when the water flow re-cutting and re-distribution device is implemented, the isolation net 905 can be made of nylon materials with harder textures, and effective oxidation resistance and corrosion resistance are realized, and the mesh diameter is about 3mm.
The hollow filler can effectively increase the porosity of the whole deep bed aeration filler zone 9, can improve the porosity from 25% to about 80%, greatly increases the treatment capacity of the wetland, reduces the occupied area of the wetland, provides enough root system extension space for the wetland plants, is beneficial to better growth of the plants, and improves the water quality purification effect.
In combination with the illustration of fig. 2, a plurality of aeration sections 1101 are arranged along the flowing direction of sewage in the deep-bed aeration filling area 9, and the aeration sections are connected with aeration pipes 11 through pipelines, and in the illustration of the illustration, two aeration sections 1101 are arranged and are oppositely paved at the bottom of the deep-bed aeration filling area 9, so that the purpose of further improving the aeration effect is achieved.
The effective water depth of the deep-bed aeration filler zone 9 is deeper than the surrounding area, the filler type is different from the surrounding area, the pollutant removal effect can be improved when aeration is carried out, the possibility of blocking the constructed wetland can be effectively reduced by remixing the passing sewage, the pollutant removal effect is guaranteed, the service life of the constructed wetland is prolonged, in addition, the purification effect is kept for discharging impurities such as biomembrane and silt in gaps of the blocked filler by the conventional wetland, the membrane pouring operation is required, in the embodiment, the hollow filler is arranged not only in the life cycle of the normal wetland, but also in the reduction of the membrane pouring, when the filler cannot be subjected to excavation and replacement, the replacement is convenient, when the aeration zone of the deep-bed aeration filler zone 9 is maintained, the aeration zone of the hollow filler is only required to be excavated, and the hollow filler is required to be completely excavated, the excavated and the hollow filler is not repeatedly used, so that the cost of operation and maintenance of the wetland is greatly reduced.
As described above, in order to facilitate the film pouring operation, in this embodiment, the water collecting and filling area 10 is provided with the emptying pipe 6, the emptying pipe 6 is located at the bottom of the water collecting and filling area 10, and when the film pouring is required, the water stored in the wetland is emptied through the emptying pipe 6.
In this embodiment, the first planting soil layer 201 and the second planting soil layer 701 are both planted with wetland plants 3, the wetland plants 3 are emergent aquatic plants, for example, one or more of cane shoots, green onions, typha, calamus, lythrum, and core grass are adopted, and the planting density is 15-25 plants/m 2 。
In the concrete implementation, the graded broken stone layer of the second functional filler area can be inoculated with Brevibacterium ammoniagenes, and the quantity of the flora for denitrifying or treating refractory organic matters in the constructed wetland is increased by inoculating Brevibacterium ammoniagenes, so that the removal effect of microorganisms on pollutants in sewage is enhanced, the decomposition and change of the refractory pollutants are enhanced, and the pollutants are absorbed and transferred by wetland plants more easily, and the water quality of the effluent of the whole wetland treatment system is improved.
By using the treatment system provided by the embodiment, the tail water of a factory area of a petrochemical wastewater treatment station is treated, the quality of the discharged tail water, the quality of the water treated by the treatment system provided by the embodiment and the quality analysis result of the traditional wetland sewage treatment system are shown in the following table 1, and the quality of the obtained purified water is obviously improved by adopting the treatment system of the embodiment.
TABLE 1 results of analysis of quality of tail Water from a factory area of a petrochemical wastewater treatment plant and results of analysis of quality of purified Water obtained by purifying tail Water by a treatment System and purifying Tail Water by a conventional wetland Sewage treatment System according to the present embodiment
| Major contaminants | Unit (B) | Tail water | This embodiment | Traditional Chinese medicine |
| pH value of | Dimensionless | 8.11 | 6.72 | 7.28 |
| Chemical oxygen demand | mg/L | 78.35 | 11.22 | 51.08 |
| Ammonia nitrogen | mg/L | 7.40 | 0.98 | 2.78 |
| Petroleum products | mg/L | 5.50 | 0.55 | 2.41 |
| Sulfides | mg/L | 0.80 | 0.26 | 0.65 |
| Suspension of | mg/L | 5.67 | 4.78 | 5.25 |
| Volatile phenol | mg/L | 0.20 | 0.08 | 0.15 |
| Total phosphorus | mg/L | 0.36 | 0.03 | 0.07 |
| Total nitrogen | mg/L | 46.47 | 8.55 | 16.92 |
| Five-day biochemical oxygen demand | mg/L | 19.37 | 5.66 | 11.29 |
| Benzene | mg/L | 0.12 | 0.02 | 0.08 |
| Toluene (toluene) | mg/L | 0.08 | 0.01 | 0.06 |
| Ortho-xylene | mg/L | 0.36 | 0.02 | 0.22 |
| Meta-xylene | mg/L | 0.28 | 0.02 | 0.21 |
| Para-xylene | mg/L | 0.30 | 0.01 | 0.24 |
| Ethylbenzene (ethylbenzene) | mg/L | 0.32 | 0.02 | 0.24 |
| Total cyanide | mg/L | 0.22 | 0.16 | 0.16 |
| Total organic carbon | mg/L | 16.07 | 7.43 | 8.56 |
| Total vanadium | mg/L | 0.06 | 0.00 | 0.00 |
| Fluoride compounds | mg/L | 7.48 | 4.28 | 4.92 |
| Total copper | mg/L | 0.00 | 0.00 | 0.00 |
| Total zinc | mg/L | 0.10 | 0.01 | 0.02 |
| Adsorbable organic halogen (AOX) | mg/L | 0.04 | 0.028 | 0.02 |
It should be noted that the above embodiments are only for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention falls within the protection scope of the present invention.
Claims (3)
1. The improved constructed wetland sewage treatment system comprises a water distribution channel (4) and a water collecting channel (5), and is characterized in that the water distribution channel (4) is connected with a first functional filler zone (2) for longitudinally penetrating through sewage to purify the sewage, the first functional filler zone (2) is communicated with a second functional filler zone (7) for horizontally penetrating through purified water of the first functional filler zone (2), and the water collecting channel (5) is connected with the second functional filler zone (7) to collect purified water of the second functional filler zone (7);
the first functional filler region (2) is connected with the water distribution channel (4) through a plurality of water distribution pipes (401) arranged at the bottom of the first functional filler region (2), sewage is input to the bottom of the first functional filler region (2), a plurality of water collecting pipes (402) are arranged at the upper part of the first functional filler region (2) and used for collecting sewage longitudinally penetrating through the first functional filler region (2), a water outlet section of each water collecting pipe (402) is arranged at one end of the second functional filler region (7) and used for conveying purified water of the first functional filler region (2) to the second functional filler region (7) for purification treatment, the purified water of the first functional filler region (2) horizontally penetrates through the second functional filler region (7), a water collecting pipe (501) is arranged at the other end of the second functional filler region (7), three outlets, namely a high outlet, a middle outlet and a low outlet, are arranged in the vertical direction of a port of the water collecting pipe (501), the water collecting pipe (501) is communicated with the water collecting channel (5), and the purified water of the second functional filler region (7) is conveyed after being collected;
two ends of the second functional filler region (7) are respectively provided with a water distribution filler region (8) and a water collecting filler region (10), the water outlet end of the water collecting pipe (402) is arranged in the water distribution filler region (8), and the water inlet end of the water collecting pipe (501) is arranged in the water collecting filler region (10);
the first functional filler zone (2) comprises a first planting soil layer (201), a first coarse sand isolation layer (202) and an iron-carbon mixed filler layer and a first coarse sand protection layer (208) which are arranged from top to bottom, wherein the iron-carbon mixed filler layer is used for carrying out electrolytic treatment on wastewater by utilizing potential difference generated by the iron-carbon mixed filler layer, the iron-carbon mixed filler layer comprises a first iron-carbon mixed filler layer (205) and a second iron-carbon mixed filler layer (206) with filler particle size larger than that of the first iron-carbon mixed filler layer (205) which are arranged from top to bottom, the iron-carbon content in the first iron-carbon mixed filler layer (205) is smaller than that of the second iron-carbon mixed filler layer (206), the filler particle size of the first iron-carbon mixed filler layer (205) is 30-50mm, the thickness is 200mm, the filler particle size of the second iron-carbon mixed filler layer (206) is 50-80mm, the thickness is 200mm, the iron-carbon content in the first iron-carbon mixed filler layer (205) is 20%, the iron-carbon content in the second iron-carbon mixed filler layer (206) is 30%,
the second functional filler region (7) is provided with a deep-bed aeration filler region (9) for the sewage to horizontally pass through, an aeration pipe (11) which is used for communicating an air source and aerating the deep-bed aeration filler region (9) is arranged in the deep-bed aeration filler region (9), the bottom of the deep-bed aeration filler region (9) is concave, the bottom end of the deep-bed aeration filler region is lower than the bottom of the second functional filler region (7), an aeration section (1101) of the aeration pipe (11) is arranged at the bottom of the deep-bed aeration filler region (9), and the deep-bed aeration filler region (9) comprises a third planting soil layer (901), a third coarse sand isolation layer (902), a third rice stone layer (903), a fifth graded stone layer (904), an isolation net (905), a hollow filler layer (906), a third impermeable film (907) and a third coarse sand protection layer (908) which are sequentially arranged from top to bottom;
the second functional filler area (7) comprises a second planting soil layer (701), a second coarse sand isolation layer (702), a second rice stone layer (703), a second functional filler area graded broken stone layer, a second impermeable film (707) and a second coarse sand protection layer (708) which are sequentially arranged from top to bottom, and the second functional filler area graded broken stone layer is inoculated with Brevibacterium ammoniagenes.
2. An improved constructed wetland sewage treatment system according to claim 1, wherein said second functional filler zone graded stone layer comprises a fourth-stage coarse sand protective layer (706), a fourth-stage graded stone layer (705) and a third-stage graded stone layer (704) which are arranged from bottom to top.
3. An improved constructed wetland sewage treatment system according to claim 1, wherein the first planting soil layer (201) and the second planting soil layer (701) are both planted with wetland plants (3), the wetland plants (3) are one or more of cane shoots, green onions, typha, calamus, lythrum, and core grass, and the planting density is 15-25 plants/m 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210385268.6A CN114772736B (en) | 2022-04-13 | 2022-04-13 | Improved constructed wetland sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210385268.6A CN114772736B (en) | 2022-04-13 | 2022-04-13 | Improved constructed wetland sewage treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114772736A CN114772736A (en) | 2022-07-22 |
| CN114772736B true CN114772736B (en) | 2024-04-09 |
Family
ID=82429442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210385268.6A Active CN114772736B (en) | 2022-04-13 | 2022-04-13 | Improved constructed wetland sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114772736B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115818823A (en) * | 2022-11-22 | 2023-03-21 | 北京建筑大学 | Sewage remediation device and application |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2100855A1 (en) * | 2008-03-14 | 2009-09-16 | Premier Tech 2000 Ltee | A tertiary system and process for treating a liquid effluent from an onsite domestic secondary treatment unit |
| CN101759329A (en) * | 2010-01-08 | 2010-06-30 | 蓝星环境工程有限公司 | Method for processing organosilicon waste water |
| KR101106778B1 (en) * | 2011-05-24 | 2012-01-18 | 한국바이오시스템(주) | Wastewater treatment apparatus for public facilities and apartment house by natural purification and wastewater treatment method and water circulation system using the wastewater treatment apparatus |
| CN102964028A (en) * | 2012-11-19 | 2013-03-13 | 同济大学 | Underground water advection percolation system used for town sewage treatment |
| KR101303525B1 (en) * | 2013-03-07 | 2013-09-03 | 순천대학교 산학협력단 | A livestock wastewater treatment system using constructed wetlands |
| CN204079607U (en) * | 2014-09-24 | 2015-01-07 | 威士邦（厦门）环境科技有限公司 | A kind of natural energy layering aeration aerating artificial swamp |
| CN106587335A (en) * | 2017-01-04 | 2017-04-26 | 中国葛洲坝集团第工程有限公司 | Black and odorous water body aeration and oxygenation ecosystem recovery system |
| CN206384930U (en) * | 2016-12-22 | 2017-08-08 | 上海湛清环境工程有限公司 | Compound type constructed wetland system |
| CN107151056A (en) * | 2017-06-27 | 2017-09-12 | 郑州大学环境技术咨询工程有限公司 | It is a kind of to strengthen the horizontal drowned flow artificial wet land system of denitrification |
| CN208265854U (en) * | 2017-12-29 | 2018-12-21 | 星景生态环保科技（苏州）有限公司 | A kind of wetland effluent water level control apparatus |
| CN209702397U (en) * | 2018-12-25 | 2019-11-29 | 北京东方园林环境股份有限公司 | A kind of artificial swamp water auto-regulation system |
| CN212356946U (en) * | 2020-05-29 | 2021-01-15 | 山东省环科院环境工程有限公司 | Sewage enhanced denitrification advanced treatment undercurrent system |
-
2022
- 2022-04-13 CN CN202210385268.6A patent/CN114772736B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2100855A1 (en) * | 2008-03-14 | 2009-09-16 | Premier Tech 2000 Ltee | A tertiary system and process for treating a liquid effluent from an onsite domestic secondary treatment unit |
| CN101759329A (en) * | 2010-01-08 | 2010-06-30 | 蓝星环境工程有限公司 | Method for processing organosilicon waste water |
| KR101106778B1 (en) * | 2011-05-24 | 2012-01-18 | 한국바이오시스템(주) | Wastewater treatment apparatus for public facilities and apartment house by natural purification and wastewater treatment method and water circulation system using the wastewater treatment apparatus |
| CN102964028A (en) * | 2012-11-19 | 2013-03-13 | 同济大学 | Underground water advection percolation system used for town sewage treatment |
| KR101303525B1 (en) * | 2013-03-07 | 2013-09-03 | 순천대학교 산학협력단 | A livestock wastewater treatment system using constructed wetlands |
| CN204079607U (en) * | 2014-09-24 | 2015-01-07 | 威士邦（厦门）环境科技有限公司 | A kind of natural energy layering aeration aerating artificial swamp |
| CN206384930U (en) * | 2016-12-22 | 2017-08-08 | 上海湛清环境工程有限公司 | Compound type constructed wetland system |
| CN106587335A (en) * | 2017-01-04 | 2017-04-26 | 中国葛洲坝集团第工程有限公司 | Black and odorous water body aeration and oxygenation ecosystem recovery system |
| CN107151056A (en) * | 2017-06-27 | 2017-09-12 | 郑州大学环境技术咨询工程有限公司 | It is a kind of to strengthen the horizontal drowned flow artificial wet land system of denitrification |
| CN208265854U (en) * | 2017-12-29 | 2018-12-21 | 星景生态环保科技（苏州）有限公司 | A kind of wetland effluent water level control apparatus |
| CN209702397U (en) * | 2018-12-25 | 2019-11-29 | 北京东方园林环境股份有限公司 | A kind of artificial swamp water auto-regulation system |
| CN212356946U (en) * | 2020-05-29 | 2021-01-15 | 山东省环科院环境工程有限公司 | Sewage enhanced denitrification advanced treatment undercurrent system |
Non-Patent Citations (5)
| Title |
|---|
| 宋关玲等.北方富营养化水体生态修复技术.中国轻工业出版社,2015,第96页. * |
| 汪俊三.物碎石床人工湿地污水处理技术和我的工程案例.中国环境科学出版社,2009,第330页. * |
| 深床过滤用于垂直流人工湿地净化效果研究;王媚;徐栋;杜明普;陈迪松;武俊梅;张义;周巧红;肖恩荣;张婷;吴振斌;;环境科学与技术;20171215(S2);第65-70页 * |
| 贾丽等.现代节水渔业技术.海洋出版社,2017,第92-93页、图8.2、图8.3. * |
| 黄伯云等.中国战略性新兴产业—新材料 环境工程材料.中国铁道出版社,2018,第217页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114772736A (en) | 2022-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Idelovitch et al. | Soil-aquifer treatment: a new approach to an old method of wastewater reuse | |
| US7790032B2 (en) | Waste treatment process | |
| KR101163061B1 (en) | Equipment and method for water and stream purification using layered soil system | |
| CN107540094B (en) | Constructed wetland sewage treatment system | |
| CN107055754B (en) | Circulating zero-valent iron biofilter for strengthening treatment of rural domestic sewage | |
| CN101905944B (en) | Composite-type sewage sludge treatment system for artificial wetland | |
| Yildiz | Water and wastewater treatment: Biological processes | |
| US20070289922A1 (en) | Modular wastewater treatment system | |
| CN102775025A (en) | Municipal life wastewater treatment system with high efficiency and low energy consumption | |
| CN104528932A (en) | Advanced wastewater treatment denitrification biological filter device system and treatment process | |
| CN101671096A (en) | Method for processing sewage by multilevel vertical-current compound manual wetting ground and processing system thereof | |
| CN102515355A (en) | Combined subsurface-flow constructed wetland system with high efficiency and low cost for processing polluted river water | |
| CN110746055A (en) | River course normal position water purification and advanced wastewater treatment system | |
| CN111484132A (en) | Composite artificial wetland system for advanced treatment of tail water and sewage treatment method | |
| CN114772736B (en) | Improved constructed wetland sewage treatment system | |
| CN102964037A (en) | Novel sewage treatment method by combined utilization of light filter material biological aerated filter and heavy filter material biological aerated filter | |
| CN204474402U (en) | A kind of advanced treatment of wastewater denitrification bio-filter apparatus system | |
| CN105152487A (en) | Water area sewage treatment device and method | |
| CN105174469A (en) | Integrated composite stereo constructed wetland system and sewage processing method | |
| CN204874019U (en) | Ecological ditch water purification system | |
| Rahi et al. | Performance of subsurface flow constructed wetland systems in the treatment of Al-Rustumia municipal wastewater using continuous loading feed | |
| Bali et al. | Removal of contaminants and pathogens from secondary effluents using intermittent sand filters | |
| CN210150906U (en) | Improvement type domestic sewage purification system | |
| CN107840534B (en) | A kind of odorless extruding liquor treating process without solid waste discharge of refuse transfer station | |
| CN207079072U (en) | Artificial wet land system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |