CN107176699A - Biological filter dam - Google Patents

Biological filter dam Download PDF

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Publication number
CN107176699A
CN107176699A CN201710605743.5A CN201710605743A CN107176699A CN 107176699 A CN107176699 A CN 107176699A CN 201710605743 A CN201710605743 A CN 201710605743A CN 107176699 A CN107176699 A CN 107176699A
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CN
China
Prior art keywords
layer
biological filter
filter dam
dam according
biological
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.)
Pending
Application number
CN201710605743.5A
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Chinese (zh)
Inventor
龚敏
梁灵枝
黄欣燕
黄超
胡昌顺
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Zhongshan Zhongkai Environmental Protection Equipment Manufacturing Co Ltd
Original Assignee
Zhongshan Zhongkai Environmental Protection Equipment Manufacturing Co Ltd
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Application filed by Zhongshan Zhongkai Environmental Protection Equipment Manufacturing Co Ltd filed Critical Zhongshan Zhongkai Environmental Protection Equipment Manufacturing Co Ltd
Priority to CN201710605743.5A priority Critical patent/CN107176699A/en
Publication of CN107176699A publication Critical patent/CN107176699A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biotechnology (AREA)
  • Botany (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention discloses biological filter dam.The biological filter dam, including a filtrate body;One vegetable layer, is grown in an outer surface of the filtrate body;With microbe stuffing layer, growth has the microorganism for being intended for membrane biological reaction, is arranged on another outer surface of the filtrate body.The biological filter dam of the present invention, included microbe stuffing layer can tackle water body purification using membrane bioreaction, and the included outer surface for being grown in the filtrate body can be purified using root system to water body, thus achieve higher treatment effeciency.

Description

Biological filter dam
Technical field
The present invention relates to the technical field of black-odor river sewage draining exit sewage disposal, in particular to biological filter dam.
Background technology
With the fast development of social economy, urban river, lake due to undressed industry and sanitary sewage it is direct It is discharged into, loads of nutrition is sharply increased, eutrophication is extremely serious, so as to cause a large amount of consumption of Dissolved Oxygen in Water, causes water Body anoxic and darkly smelly state, make the whole ecosystem crisis occur.The current most of urban waterway of China has existed black smelly Phenomenon, the black smelly phenomenon in China river appears in Shanghai inland river and gushed earliest, subsequent Nanjing, Suzhou, the inland river in Guangzhou etc..Recent decades Come, the scope and degree of China's black and odorous water are constantly aggravated, in national most of city section, flow through the water body of busy areas The overwhelming majority is improved year by year by different degrees of pollution, and degradation.According to incompletely statistics, have in China's urban water-body 40% has black and odorous water.On April 16th, 2015, country promulgated《Water prevention and cure of pollution action plan》--- " ensureing with all strength In water ecological environment safety " one, Special attention will be given to " regulation city black and odorous water " takes control source to cut dirt, garbage-cleaning, desilting The measures such as dredging, restoration of the ecosystem, increase black and odorous water management.It is required that municipality directly under the Central Government, provincial capital, cities specifically designated in the state plan built-up areas Black and odorous water will be substantially eliminated before the end of the year 2017.
In the prior art, biofilter is generally used to the improvement that black-odor river is administered, biofilter is by rubble or modeling The biological treatment structures that material products filler is constituted.Sewage and the microbial film gap-contact grown on filler surface, make sewage It is purified.Because biomembrane group plants single, cause filter tank limited to the treatment effeciency of sewage.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of biological filter dam, and the biological filter dam has to sewage Higher treatment effeciency.
A kind of biological filter dam, including a filtrate body;One vegetable layer, is grown in an outer surface of the filtrate body;It is micro- with one Biologic packing material layer, growth has the microorganism for being intended for membrane biological reaction, is arranged on another outer surface of the filtrate body.
Further, the filtrate body includes the stone layer, haydite layer and volcano rock stratum being cascading.
Further, the thickness of the stone layer is 15~25mm.
Further, the thickness of the haydite layer is 7~13mm.
Further, the thickness of the volcano rock stratum is 3~7mm.
Further, haydite layer is flyash ceramic granulosa.
Further, the outer layer of the microbe stuffing layer has been stacked pervious bed.
Further, the pervious bed is filter pulp layer.
Further, the vegetable layer is water plant layer.
Further, in addition to the filter mesh layer to accommodating pervious bed and the microbe stuffing layer.
The present invention's is ecological filter bed, and included microbe stuffing layer can tackle water body purification using membrane bioreaction, be wrapped The outer surface for being grown in the filtrate body included can be purified using root system to water body, thus achieve higher processing effect Rate.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment Figure is briefly described, it should be understood that, the following drawings illustrate only certain embodiments of the invention, therefore be not construed as Restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis These accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows the structure chart on the biological filter dam that one embodiment of the invention is provided.
Main element symbol description:
100- biological filters dam;
20- filtrate bodies;
21- stone layers;
22- haydites layer;
23- volcano rock stratums;
40- vegetable layers;
60- microbe stuffings layer;
80- pervious beds;
90- filter mesh layers.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing Give preferred embodiment.But, it can be realized in many different forms, however it is not limited to described herein to implement Example.On the contrary, the purpose that these embodiments are provided be make to the disclosure of which more it is thorough comprehensively.
The term used in the various embodiments of the disclosure is only used for describing the purpose of specific embodiment and not anticipated In the various embodiments of the limitation disclosure.As used herein, singulative is intended to also include plural form, unless context is clear Chu it is indicated otherwise.Unless otherwise defined, all terms (including the technical term and scientific terminology) tool being otherwise used herein There is the implication identical implication that the various embodiment one skilled in the art with the disclosure are generally understood that.The term (term such as limited in the dictionary typically used) is to be interpreted as having and the situational meaning in correlative technology field Identical implication and it will be not construed as with Utopian implication or excessively formal implication, unless in the various of the disclosure It is clearly defined in embodiment.
In the description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear", The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than indicate or imply signified dress Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the limit of the present invention System.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any One or more embodiments or example in combine in an appropriate manner.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection or the connection of two element internals, can To be to be joined directly together, it can also be indirectly connected to by intermediary, for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term.
The statement (" first ", " second " etc.) used in the various embodiments of the disclosure can be modified to be implemented various Various element in example, but corresponding element can not be limited.For example, presented above be not intended to limit the suitable of the element Sequence and/or importance.The purpose presented above for being only used for differentiating an element and other elements.For example, the first user fills Put and indicate different user device with second user device, although the two is all user's set.For example, not departing from each of the disclosure In the case of the scope for planting embodiment, the first element is referred to alternatively as the second element, similarly, and the second element is also referred to as first Element.
It should be noted that:, can be by the first composition member if an element ' attach ' to another element by description Part is directly connected to the second element, and " connection " the 3rd can be constituted between the first element and the second element Element.On the contrary, when an element " being directly connected to " is arrived into another element, it will be appreciated that be in the first element And second the 3rd element is not present between element.
In addition, the indefinite article " one kind " and " one " before key element of the present invention or component are to key element or the quantitative requirement of component (i.e. occurrence number) unrestriction.Therefore " one " or " one kind " should be read as including one or at least one, and odd number The key element or component of form also include plural form, unless the obvious purport of the quantity refers to singulative.
Refer to Fig. 1.The biological filter dam 100 of the embodiment of the present invention, including a filtrate body 20;One vegetable layer 40, is grown in One outer surface of filtrate body 20;With microbe stuffing layer 60, growth has the microorganism for being intended for membrane biological reaction, is arranged on Another outer surface of filtrate body 20.
In above-described embodiment, included microbe stuffing layer 60 can tackle water body purification using membrane bioreaction, included The outer surface for being grown in filtrate body 20 water body can be purified using root system, thus achieve higher treatment effeciency.
The shape of above-mentioned filtrate body 20 is not construed as limiting, for example, can be similar to the trapezoidal of river levee, the appearance of filtrate body 20 Face is that have top surface and two side faces to be constituted, and top surface refers to the one side that relative position is in ground, refers to sideways adjacent with top surface Outer surface." outer surface " of foregoing " vegetable layer 40 is grown in an outer surface of the filtrate body 20 " can be filtrate body 20 Top surface;" another outer surface " of foregoing " microbe stuffing layer 60 is arranged on another outer surface of the filtrate body 20 " can be The two side faces of filtrate body 20.
Filtrate body 20 can fill any structure to be formed using filtrate.According to the difference of filtrate, material body can include according to The secondary stone layer 21 being stacked, haydite layer 22 and volcano rock stratum 23.Note, here, be stacked be it is multiple have Rotating fields Object (such as film) stack manner on another one surface is fitted in using one.It is sequentially overlapped and is set to A, B, C, D Example, refers to that an A surface sets B, B surface to set C, C surface to set D, i.e., according to a direction (such as from up to Under), A, B, C, D are arranged in order.
Stone layer 21, it is to be understood that bottommost, the i.e. position closest to ground can be laid in.Stone layer 21 Function as bed course.Stone layer 21 can include rubble.Here, rubble is through machinery by natural rock, cobble or ore Crush, be sieved into, particle diameter is more than 4.75mm rock particles.Rubble is preferably formed for cobblestone is broken.Herein, goose ovum Stone is the by-product for exploiting yellow ground, because shape is gained the name like goose ovum.Cobblestone is derived from and lived through as a kind of pure natural stone material Swelled after crustal movement before 10000000 year by ancient riverbed in the sandstone mountain produced, experiencing mountain torrents impact, flowing water handling process In constantly extrude, rub and formed.Cobblestone can gather materials on the spot, and the planktonic algae pair such as the diatom accompanying by cobblestone Sewage plays catharsis.
It is the referring to property of thickness of stone layer 21 15~25mm, such as 15mm, 16mm, 18mm, 20mm, 22mm, 24mm Or 25mm etc., preferably 20mm.
It is the referring to property of thickness of haydite layer 22 7~13mm, such as 7mm, 7.5mm, 8mm, 10mm, 11mm, 12.5mm Or 13mm, preferably 10mm etc..
Above-mentioned, the volcanic rock of volcano rock stratum 23 is also known as effusive rock (Effusive rock), belongs to magmatic rock (igneous rock) One class, the rock that the effect such as the magma that is sprayed when being volcanic action, volcanism is condensed, diagenesis, compacting is formed.Volcanic rock can preferably be Basalt, basalt belongs to basic volcanic rocks, by the porous stone material formed after volcano eruption, is of great rarity.Gushed out during eruption The magma come has gas slag, solid magma, and temperature and pressure declines rapidly, chemically and physically changed, so magma is just Become basalt.Contain substantial amounts of silicon, potassium, sodium, iron, magnesium, 26 kinds of mineral elements, Yi Jitong, zinc, chromium, nickel, manganese etc..
It is the referring to property of thickness of volcano rock stratum 23 3~7mm, such as 3mm, 3.5mm, 4mm, 5mm, 6mm or 7mm.
Term " membrane biological reaction " refers to film being combined the Selective Separation of dusty gas with biodegradation, microorganism It is attached to Nets impregnated film surface and forms biomembrane, film both sides is respectively the pollution in gas phase and liquid phase, waste gas Material reaches biofilm surface by film and is degraded by microorganisms.Bacterium and fungi containing high concentration, pass through pumping in membrane reactor Bacterium and fungi are back to use in biological reaction tank, is suitable to processing hydroaropic substance using bacterium and fungi is suitable to processing hydrophobicity The characteristic of material, constructs the reaction of bacteria-fungal combined biological, inoculated bacteria and fungi go respectively in the different zones of reaction Different types of pollutant in removing exhaust gas.
It is understood that microbe stuffing layer 60 includes microbe stuffing and the micro- life being dropped in microbe stuffing Thing.Microbe stuffing can use known form, for example, can be inorganic filler, and such as conventional inorganic filler has:, coke, Quartz sand, activated carbon, expansion alumino-silicate etc.).Can also be organic polymer filler, such as polystyrene, polyvinyl chloride, poly- Propylene PE, various types of resins, plastics (including all kinds of foamed materials), fiber etc..Shape as biofilter material can be granular, no Regular granular, fiberglass or plastics, activated carbon grain, plastic optical fibre class shape, cellular or corrugated plate shape, spherical lightweight etc..Herein, Particulate filler can be inorganic or quartz sand.Its rough surface, it is easy to aufwuch, the ability for retaining suspended contaminant is strong, lacks Point is that resistance is big, is easily blocked.Irregular particulate filler can be Ha Kaideng balls (Hacketten) and polyhedron empty ball etc., can use Ceramic graphite, plastics or metal are made, feature be it is simple in construction, it is cheap, but fluid distrbution is uneven.Activated carbon grain:Compare table Area is big, and hole is more.Plastic optical fibre class filler light weight, it is hard, but surface is smooth, and voidage is small, not easy to be filmed.Cellular or ripple The material of line plate-like fillers can be fiberglass or plastics (polyethylene polystyrene and polypropylene etc.), and its voidage is high, structure Simply, light weight but intensity are high, and antiseptic property is good, and aging biology is easy to come off etc. primary disadvantage is that the biological life on filler surface It is long whard to control with the balance that comes off, it is difficult to obtain the spherical lightweight of homogeneous flow velocity in filler.Spherical lightweight is to use clay.
Significantly improved in order that obtaining microorganism with the compatibility of microorganism filtrate, so as to greatly reduce microorganism in filler Surface attachment grows difficulty, forms the time of biofilm and can shift to an earlier date, it is possible to provide a kind of such as Chinese patent Organism compatibility filling described in CN106430527A, be specially:A kind of organism compatibility filling, its composition and parts by weight For:15~20 parts of methacrylic acid-beta-hydroxy ethyl ester, 1.5~3 parts of graphene oxide, 1~2 part of crosslinking agent, 15~20 parts of gelatin, 3~5 parts of enzymatic activity conditioning agent, 0.5~2 part of modifier for processing, 0.5~1 part of macromolecular adhesive, biologic packing material particle 55~ 80 parts, 5~8 parts of plasticizer, the density of the organism compatibility filling is 0.93~0.98g/cm3.Enzymatic activity conditioning agent is Refer to Fe2+Compound, Cu2+Compound, Mn2+Compound, Ca2+Compound or Zn2+Compound.Modifier for processing is Refer at least one of stearate, stearic acid.Crosslinking agent refers to epoxychloropropane, divinylbenzene, N, N- di-2-ethylhexylphosphine oxides third At least one of acrylamide.Methacrylic acid-beta-hydroxy ethyl ester, the mass ratio of graphene oxide are 10:(1~5).Macromolecule glue Glutinous agent refers at least one of polyamide-based, polyesters, polyurethanes.Biologic packing material particle is by macromolecule polymer material system Into organic polymer biologic packing material particle, the macromolecule polymer material be selected from polypropylene, polyethylene, polyamide, polyester, Any one in polyvinyl chloride.Plasticizer is preferably compound adjacent benzene class plasticizer.The preparation side of the organism compatibility filling Method is including step:Step 1: the gelatin is pressed into 1:The solid-liquid ratio of (1~10) is dissolved in 50 DEG C of ultra-pure water, is then added The enzymatic activity conditioning agent, modifier for processing, form solution;Step 2: graphene oxide is placed in deionized water, aoxidize Graphene and the mass ratio of deionized water are 1:(5~10), ultrasonic disperse processing, are prepared into graphene oxide dispersion;Then In the ultra-pure water that methacrylic acid-beta-hydroxy ethyl ester, graphene oxide dispersion, crosslinking agent are dissolved in 3~20 parts 50 DEG C, stirring is equal Even, the reaction time is 5h;The suspension obtained after reaction is centrifuged, the sediment obtained after separation is cleaned dry with ultra-pure water Only, it is added in solution made from step one, stirs, obtains mixture;Step 3: continuously stirring bar in 60~120rpm Under part, macromolecular adhesive is slowly added into the mixture of step 2, mixed mortar is formed;Step 4: 10 times will be diluted Plasticizer uniformly spill several times in the surface of biologic packing material particle;Then the biologic packing material particle is immersed into the mixed of step 3 In rubber alloy slurry, until mixed mortar sticks to the surface of biologic packing material particle, taken out after being impregnated with, cool solidification, 80 DEG C of dryings, system Obtain organism compatibility filling.
The aerobic or anaerobic type microorganism that can be known in the art as the microorganism of microbe stuffing layer 60, for example may be used Inorganic molecules can be decomposed by saccharomycete, lactic acid bacteria, mould, black-koji mould, monascus ruber for being decomposed to organic matter etc. Nitrobacteria, sulfide-oxidizing enzyme etc..
Above-mentioned vegetable layer 40 can have the plant of preferable purified water for all, can for example include with watermifoil, calamus, It is the water plant of representative in Scirpus tabernaemontani, canna, cyperus alternifolius, hornwort.
The outer layer of microbe stuffing layer 60 has been stacked pervious bed 80.Here, pervious bed 80 refers to water can be allowed to pass through Without allowing suspension bulky grain to pass through element.Pervious bed 80 can include filter pulp layer, porous fibre etc..The mistake of filter pulp generally meaning Filter pulp (screen pack) refers to air filtration.Filter pulp is divided into four types according to the difference of material, filtrate:Synthetic fibers filter cotton, Non-woven fabrics filter cotton, glass fiber filter cotton, activated carbon filter cotton.Filter pulp can filter for synthetic fibers filter cotton, non-woven fabrics Cotton, glass fiber filter cotton or activated carbon filter cotton etc. form.
In order to provide the skeleton of filtrate body 20, it can also include to accommodating pervious bed 80 and the microbe stuffing layer 60 Filter mesh layer 90.Here, filter screen can be gabion box.Herein, gabion box is malleable low by improved corrosion, high intensity, tool Carbon steel wire or cladding PVC above steel wire are formed using machinery braiding, and the box-structure being made using the net is exactly stone Cage net cage.According to ASTM and EN standards, used mild steel wire diameter is different according to engineering design requirements.It is typically in the range of Between 2.0-4.0mm, the tensile strength of the gabion netting wire is no less than 38kg/m2, and coat of metal weight is generally greater than 245g/m2, The edge linear diameter of gabion mesh sheet is typically greater than sealike colour.The length of the stranded part of its two-wire cannot be less than 50mm. to protect The coat of metal and PVC coating of card twisting part steel splitting silk are not damaged.
As the form of other alternative filter screen, it can also be snakeskin bag, gunny etc., i.e., building stones are placed on snakeskin In bag, gunny etc..
The biological filter dam 100 of the present invention has the advantage that:
1st, acted on using biological filter dam 100, form it into drop system, increase the oxygenation of film reaction, form biological Diversity ecological recycle system.
2nd, intensive treatment system globe area filtrate body 20 adsorb, plant absorption and technology of biological membrane.
3rd, drop stream construction system is combined, makes water body flow, realizes aeration aerating.
4th, vegetable layer 40 largely absorbs dirty water pollutant, reduces the natural ecosystem of rivers and recovers load.
5th, the anaerobic bacteria input by microbe stuffing layer 60 and aerobic bacteria collective effect, greatly increase processing load, performance It is reliable and stable.
It is above-mentioned not address part, it is adaptable to prior art.
Although more above used the term for representing structure, the possibility for being not precluded from using other terms.Use These terms are used for the purpose of more easily describing and explaining the essence of the present invention;It is construed as any additional limit System is all disagreed with spirit of the present invention.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (10)

1. a kind of biological filter dam, it is characterised in that including a filtrate body;One vegetable layer, is grown in an appearance of the filtrate body Face;With microbe stuffing layer, growth has the microorganism for being intended for membrane biological reaction, is arranged on the another outer of the filtrate body Surface.
2. biological filter dam according to claim 1, it is characterised in that the filtrate body includes the building stones being cascading Layer, haydite layer and volcano rock stratum.
3. biological filter dam according to claim 2, it is characterised in that the thickness of the stone layer is 15~25mm.
4. biological filter dam according to claim 2, it is characterised in that the thickness of the haydite layer is 7~13mm.
5. biological filter dam according to claim 2, it is characterised in that the thickness of the volcano rock stratum is 3~7mm.
6. biological filter dam according to claim 2, it is characterised in that the haydite layer is flyash ceramic granulosa.
7. biological filter dam according to claim 1, it is characterised in that the outer layer of the microbe stuffing layer has been stacked Pervious bed.
8. biological filter dam according to claim 7, it is characterised in that the pervious bed is filter pulp layer.
9. biological filter dam according to claim 1, it is characterised in that the vegetable layer is water plant layer.
10. biological filter dam according to claim 7, it is characterised in that also including to house the pervious bed and micro- life The filter mesh layer of thing packing layer.
CN201710605743.5A 2017-07-24 2017-07-24 Biological filter dam Pending CN107176699A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108439704A (en) * 2018-03-26 2018-08-24 宁波市恒洁水务发展有限公司 A kind of river point-source pollution source in-situ treatment system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086643A (en) * 2009-12-02 2011-06-08 上海市农业科学院 Ecological engineering technology for stopping riverway coastal pollutants from entering rivers and restoring vegetation communities
CN106430617A (en) * 2016-08-31 2017-02-22 鑫源鑫(北京)水利工程有限公司 Biological purification dam
CN207108618U (en) * 2017-07-24 2018-03-16 中山市中开环保设备制造有限公司 Biological filter dam

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086643A (en) * 2009-12-02 2011-06-08 上海市农业科学院 Ecological engineering technology for stopping riverway coastal pollutants from entering rivers and restoring vegetation communities
CN106430617A (en) * 2016-08-31 2017-02-22 鑫源鑫(北京)水利工程有限公司 Biological purification dam
CN207108618U (en) * 2017-07-24 2018-03-16 中山市中开环保设备制造有限公司 Biological filter dam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108439704A (en) * 2018-03-26 2018-08-24 宁波市恒洁水务发展有限公司 A kind of river point-source pollution source in-situ treatment system

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Application publication date: 20170919