CN107915372A - The online system and method for administering black-odor riverway water body - Google Patents
The online system and method for administering black-odor riverway water body Download PDFInfo
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- CN107915372A CN107915372A CN201711053222.XA CN201711053222A CN107915372A CN 107915372 A CN107915372 A CN 107915372A CN 201711053222 A CN201711053222 A CN 201711053222A CN 107915372 A CN107915372 A CN 107915372A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- 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
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
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- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
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- 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
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention discloses a kind of online system and method for administering black-odor riverway water body.The method comprises the following steps：1) at least one purification channel mutually isolated with main stem is set up along riverbank in sewage draining exit side, the water inlet of the purification channel is connected with sewage draining exit, and the water outlet of the purification channel is connected with main stem；2) waste water of sewage draining exit discharge is carried out to wastewater sedimentation processing using precipitation unit successively in purification channel；3) Anaerobic Treatment is carried out with anaerobic unit to waste water after precipitation process；4) oxidation processes are carried out with catalytic oxidation unit to waste water after Anaerobic Treatment；5) waste water after oxidation processes is reprocessed using plant unit.Can realize black-odor riverway main body fast quick-recovery ecological self-purification ability after Sediment Dredging, avoid and controlled again black smelly vicious circle, and do not interfere with river normally control flood and drain flooded fields, navigation function.
Description
Technical field
The present invention is that one kind is related to black-odor riverway water quality purification function, at the same do not influence river row's flood, navigation it is online strong
Change water body treating technology.Belong to water environment treatment field.
Technical background
It is an important branch in terms of water environment treatment that black-odor riverway, which is administered,.Since environmental consciousness is weak, it is negligent of supervising
And protection, a large amount of industrial or agricultural, the sewage and waste water of life are directly discharged into river, the polluter load of input exceedes self-purification of water energy
When power, water body severe depletion of oxygen, river channel sedimentation, hardening, aquatic food chain serious loss will be caused, long-term water body in the past is just
It can produce black smelly.Black-odor riverway not only makes water body lose original ecological functions, and can pass through biological concentration, food chain
Amplification has an impact human health and life.
It there has been now including many governing measures such as physics, chemistry, biology, wherein river for the black smelly phenomenon in river
Road dredging, flocculant concentration, microbial bacterial agent dispensing, water body aeration aerating etc. means can effectively be directed to black and odorous water
Root carry out a degree of reparation.The high load capacity pollutant of sewage draining exit is directly discharged into after river, and meeting rapid contamination is whole
Water body, Chinese patent CN105502803A by add chemistry, biological agent, water body be aerated etc. means can only be temporary transient elimination or
Person alleviates black smelly state, necessarily occurs that river is repeatedly black smelly in the case of lasting pollution input, and without design anaerobism
Unit is poor for the removal effect of the larger molecular organics of bio-refractory.Chinese patent CN201406359 passes through in river
Upstream and downstream is provided with rubbish grid, buffering partition and small-scale artificial wetland, has certain treatment effect, but same shortage is detested
Oxygen processing unit, and navigation and row's flood function in river can be influenced.This kind of Treatment process is required for the river taken to significant proportion
Road main body, there is also certain deficiency for resolution：Gigantic project, manpower and materials are costly, regulation effect continuation is of short duration leads
Black smelly appearance that cause moves in circles etc..
The content of the invention
To overcome drawbacks described above, it is an object of the invention to provide a kind of efficiently online side for administering black-odor riverway water body
Method.
To reach above-mentioned purpose, black-odor riverway of the present invention is efficiently administered for a long time and the method for quick ecological restoration, including under
State step：
1) set up and the mutually isolated at least one purification channel of main stem, the purification along riverbank in sewage draining exit side
The water inlet of passage is connected with sewage draining exit, and the water outlet of the purification channel is connected with main stem；
2) waste water of sewage draining exit discharge is carried out to wastewater sedimentation processing using precipitation unit successively in purification channel；
3) Anaerobic Treatment is carried out with anaerobic unit to waste water after precipitation process；
4) oxidation processes are carried out with catalytic oxidation unit to waste water after Anaerobic Treatment；
5) waste water after oxidation processes is reprocessed using plant unit.
Preferably, the precipitation unit is the high-molecular porous sieve being connected with water conservancy diversion barricade, high-molecular porous sieve
0.5~2cm of screen distance.
Preferably, the anaerobic unit is the plastic film for the fold being covered on purification channel river surface, film one end
Nian Jie connected with the refluence barricade that suspends, the other end is arranged on riverbank.
Preferably, the catalytic oxidation unit includes bottom of river channel micropore EPDM aeration tubes, wherein micropore size 10
~50 μm, 120 ° of diffusion angle, aeration tube is laid with intervalFrame is floated in the plastics that the water surface is connected with water conservancy diversion barricade
Frame, hangs biologic packing material under plastics floating frame.
Preferably, the plant unit planting plants are Haloragidaceae Myriophyllum spicatum, planting density is 20 Cong/㎡.
Preferably, the purification channel is manufactured in the steps below：
The purification channel is manufactured in the steps below：
Riverbank preset distance is spaced in river suspension water conservancy diversion barricade is set, water conservancy diversion barricade is arranged in parallel with riverbank；Water conservancy diversion
Barricade includes rubber separation layer, and top plastic float, bottom sandbag counterweight, the expansion height for the refluence barricade that suspends is the depth of water
150%~200%；Wherein, water conservancy diversion barricade upstream end is located at sewage draining exit upstream.
To reach above-mentioned purpose, the online system for administering black-odor riverway water body of the invention, including：
At least one purification channel mutually isolated with main stem is set up along riverbank in sewage draining exit side；The purification is led to
The water inlet in road is connected with the sewage draining exit positioned at upstream, and the water outlet of the purification channel is connected with main stem；
It is single to set gradually precipitation unit, anaerobic unit, catalytic oxidation unit and plant for sewage draining exit downstream in purification channel
Member.
Preferably, the purification channel is to be spaced the suspension water conservancy diversion barricade that riverbank is set in main stem to surround, hang
Floating water conservancy diversion barricade is arranged in parallel with riverbank；Wherein, water conservancy diversion barricade includes rubber separation layer, top plastic float, and bottom sandbag is matched somebody with somebody
Weight, the expansion height for the refluence barricade that suspends is the 150%~200% of the depth of water；Wherein, water conservancy diversion barricade upstream end is located on sewage draining exit
Trip.
Preferably, the precipitation unit is the high-molecular porous sieve being connected with water conservancy diversion barricade, high-molecular porous sieve
0.5~2cm of screen distance；
The anaerobic unit is the plastic film for the fold being covered on purification channel river surface, and film one end is with suspending
Flow barricade bonding to be connected, the other end is arranged on riverbank；
The catalytic oxidation unit includes bottom of river channel micropore EPDM aeration tubes, wherein 10~50 μm of micropore size,
120 ° of diffusion angle, aeration tube are laid with intervalIn the plastics floating frame that the water surface is connected with water conservancy diversion barricade, plastics drift
Biologic packing material is hung under floating frame；
The plant unit planting plants are Haloragidaceae Myriophyllum spicatum, and planting density is 20 Cong/㎡.
Above-mentioned method and system is on the premise of the function of basic navigation row flood in river is not influenced, into river
Pollutant be effectively isolated, and online strengthened purification is carried out to pollutant in isolated area, is then entering river master
Body, realizes the process of the efficient process in zonule, and economic consumption is greatly saved.Pass through the processing of different isolated areas
The collocation and adjustment of unit can realize the management goal of " more one plans of river ".And the waste water in river will be entered in less region
Concentrate intensive treatment equally to add the concentration of reactant, improve the treatment effeciency of each processing unit.
Brief description of the drawings：
Fig. 1, the floor map of the embodiment of the present invention.
Fig. 2 is that filter element schematic diagram is precipitated in the embodiment of the present invention.
, will be big in waste water using porous high molecular material grid before sewage draining exit waste water enters isolation processing region
Solid refuse, the indissoluble thing of volume are filtered and salvaged in time.
Fig. 3 is the schematic diagram of anaerobic unit in the embodiment of the present invention.
Film laying on the water surface between water conservancy diversion barricade and river levee, film are accordion, with adapt to water level rise and under
Drop is stretched, and film one end is adhered on the float of water conservancy diversion barricade, and the other end is compacted on embankment with weight.
Fig. 4 is the schematic diagram of catalytic oxidation unit in the embodiment of the present invention,
Utilized on the water surface between water conservancy diversion barricade and river levee under suspensible plastic frame and hang biologic packing material, bottom leads to
Cross micropore aeration pipe aeration aerating.Suspension frame is connected with the float on water conservancy diversion barricade top, can following water-level lifting and with floating.
The width of frame is the 60~80% of actual isolation sector width.
Fig. 5 is the schematic diagram of plant unit in the embodiment of the present invention.
In plant unit using water plant rhizome absorption and catharsis further remove pollution in water body
Material, includes plantation and the harvesting process of plant.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
The online method for administering black-odor riverway water body of the invention, including：
1) set up and the mutually isolated at least one purification channel of main stem, the purification along riverbank in sewage draining exit side
The water inlet of passage is connected with sewage draining exit, and the water outlet of the purification channel is connected with main stem；
2) waste water of sewage draining exit discharge is carried out to wastewater sedimentation processing using precipitation unit successively in purification channel；
3) Anaerobic Treatment is carried out with anaerobic unit to waste water after precipitation process；
4) oxidation processes are carried out with catalytic oxidation unit to waste water after Anaerobic Treatment；
5) waste water after oxidation processes is reprocessed using plant unit.
On the premise of the method and system of the present invention is intended to not influence the function of basic navigation row flood in river, into river
The pollutant in road is effectively isolated, and carries out online strengthened purification to pollutant in isolated area, then into river
Main body, realizes the process of the efficient process in zonule, and economic consumption is greatly saved.
Embodiment
Enter in sewage draining exit at river and water body and main stem are effectively isolated by suspension water conservancy diversion barricade, training wall
Design according to 20m, highly designed according to 1.5m far from riverbank D=1.5~3m, single training wall length in position.Training wall is integrally adopted
With ethylene propylene diene monomer (EPDM) material, top embeds float, and lower part connection counterweight (sandbag), mouth is discharged into by effectively collecting and intercepting
Water, alleviates flow rate of water flow, while provides attachment to microorganism and provide the time, is conducive to the breeding and aggregation of microorganism.In water conservancy diversion
Water treatment clean unit is set in barricade, and treatment process is net using the circulation of " precipitation-anaerobism-catalytic oxidation-water plant "
Change system.And can be with the length of each process section of flexible modulation, collocation order and whole system according to specific water water quality
Cycle-index.Unit forms the structure of " sugarcoated haws string ", and each " cucurbit string location " in each section of cyclic process
Flexibly it can arrange in pairs or groups and adjust.
Sewage removes solid refuse by precipitating phase first when entering system, then passes through anaerobic bacteria into anaerobism section
Digestion is biochemical to the hardly possible in sewage, organic matter of macromolecular carries out degrading while removing part TN.Subsequently into life
Thing catalytic oxidation unit, by artificial aeration+technology of biological membrane to COD, NH in water body3- N is degraded while to bed mud
In a large amount of poly- phosphorus, afterwards by plant unit, further purified water using absorption of the water plant to nutriment.At this time
Chosen whether to arrange strengthened purification system cycle operation again according to effluent quality, until effluent quality reaches discharge standard, no
Can exceed river in itself from net load.The joining place in each stage is all provided with quick DO, COD, NH3- N testers and with meter
Calculation machine is connected, to monitor change of water quality and reply emergency case at any time.
Fig. 2 is precipitation filter element schematic diagram, before sewage draining exit waste water enters isolation processing region, utilizes porous height
The solid refuse of large volume in waste water, indissoluble thing are filtered and salvaged in time by molecular material grid；High-molecular porous sieve screen apertures
0.5~2cm of footpath.
Fig. 3 is the schematic diagram of anaerobic unit, and film laying on the water surface between water conservancy diversion barricade and river levee, film is fold
Shape, to adapt to the flexible of water level raising and lowering, ensures to be not in the problem of support is de- when water level goes up and disappears.It is thin
Film one end is adhered on the float of water conservancy diversion barricade, and the other end is compacted on embankment with weight.The reality of the present invention is applicable in the depth of water and is
0.5m~3m, it is ensured that all can effectively be applied in flood season high water level and low water level period drought period.Connect being effectively isolated extraneous oxygen
Anaerobism section can keep water body DO ＜ 0.5mg/L for a long time under conditions of touching, it is ensured that anaerobic bacteria can be with big in fully degraded water body
Molecule, difficult biochemical decomposition organic matter.
The schematic diagram of Fig. 4 catalytic oxidation units, the micropore aeration pipe installed by area of isolation bottom, and arranged on
It is hung with the structure composition of the plastics floating frame of biologic packing material.Utilization can hang on the water surface between water conservancy diversion barricade and river levee
Biologic packing material is hung under floating plastic frame, bottom passes through micropore aeration pipe aeration aerating.Suspension frame and water conservancy diversion barricade top
Float be connected, can following water-level lifting and with floating.The width of frame is the 60~80% of actual isolation sector width.Aeration tube
Using micropore aeration pipe, outside diameter 30mm internal diameter 20mm, 10~50 μm of aperture, five parallel connections, river is sunken to by sandbag counterweight
Road bottom.Microbe stuffing is hung under under plastics floating frame, and arrangement longitudinal pitch is 20~30cm, and horizontal spacing is 15~
20cm.Aeration control is in 0.2~0.5m3/ min, it is ensured that the dissolved oxygen numerical value in water body maintains more than 4mg/L, ensures
Oxygen animalcule is to COD and NH3Effective degraded of-N.Add efficient COD as needed at the same time, ammonia nitrogen removal microbial inoculum strengthens contact
Oxidation effectiveness.
Fig. 5 is the schematic diagram of plant unit, and absorption and the catharsis of the rhizome of water plant are utilized in plant unit
The polluter in water body is further removed, includes plantation and the harvesting process of plant.Plant unit selection watermifoil is as plant
The main water plant of thing section, planting density are 20 Cong/㎡.Watermifoil can both absorb nitrogen, phosphorus nutrition in substrate by root,
Also can by cauline leaf utilize water in nutriment, nitrogen, phosphorus absorbed after to synthesize the structure composition material of plant itself, and
Watermifoil is then that it is stored in after detoxification in vivo or is dropped in vivo at it to some heavy metals and organic matter of toxic effect
Solution.When water plant, which is gathered in, migrates out waterway system, substantial amounts of nutriment is also exported from water body therewith, so as to reach
The effect of purifying water body.
Further include the step of dredging dredging is carried out to river main body.To clear up endogenous pollution, it is endogenous thin to realize main stem
Dredge, the invention thinking of external source isolation and intensive treatment, progressively recovers the ability of the river self-purification.
Above-mentioned purification channel be at the sewage draining exit in river by suspension water conservancy diversion barricade to river apart from 2~4 meters of riverbank
Place carries out isolation formation, and bottom selects the sandbag counterweight of suitable size to isolate with main body river according to bed mud thickness.It is in this way, dirty
Water enters after area of isolation, is filtered by precipitation unit remove solid refuse and bulk insoluble matter first, and to filtering and blocking
The bulk rubbish cut is salvaged in time.Subsequently into anaerobic unit, acted on by anaerobic digestion organic in width reduction water body
Thing content is carried out at the same time denitrification and removes nitrate nitrogen and total nitrogen.Subsequently into bio-contact oxidation unit, fully it is being aerated
Under conditions of significantly degraded to the biochemical organic matter and ammonia nitrogen in water body using aerobic microbiological.Finally enter water plant list
Member, absorbs the nutrients such as N, P in water body by the Ecology Action of plant, further purifies water.At the same time as needed to master
River carries out necessary dredging and water transfer, promotes whole river to develop to the direction of healthy ecology.
Case study on implementation 1：
The sewage draining exit mean flow rate in certain river is 0.25L/s, and depth of water is 1.8m at this, water water quality index such as following table institute
Show:
According to coming water flow velocity and water quality, design precipitation segment length is 5m, and anaerobism segment length is 15m, catalytic oxidation segment length
For 15m, plant segment length is 10m, and total HRT is 120h.Wherein anaerobism section HRT is 45h, and catalytic oxidation section HRT is 45h, plant
Section is that HRT is 30h.
By the continuous water quality monitoring of 45 days, it is as follows to obtain result：
The water outlet of anaerobism section is averaged water quality：
The water outlet of catalytic oxidation section is averaged water quality：
Plant section water outlet is averaged water quality：
It can be seen that row is fully achieved for strengthened purification system water quality of the water water quality in example 1 Jing Guo one cycle
Standard is put, water outlet will not produce main stem water quality high load capacity influence after being directly entered main stem, and the self-cleaning less than river is born
Lotus.
Case study on implementation 2：
The sewage draining exit mean flow rate in certain river is 1L/s, and depth of water is 1.5m at this, and water water quality index is as shown in the table:
According to coming water flow velocity and water quality, twice, first round precipitation segment length is 5m to the circulation of design cleaning system, anaerobism segment length
It is 15m to spend for 20m, catalytic oxidation segment length, and plant segment length is 10m.Second wheel anaerobism segment length is 10m, catalytic oxidation section
Length is 10m, and plant segment length is 10m.Total length is 80m.
Total HRT is 80h.Wherein first round anaerobism section HRT is 20h, and catalytic oxidation section HRT is 15h, and plant section is for HRT
10h.Second wheel anaerobism section HRT is 10h, and catalytic oxidation section HRT is 10h, and plant section is that HRT is 10h.
By the continuous water quality monitoring of 30 days, it is as follows to obtain result：
First round plant unit effluent quality：
Second wheel plant unit effluent quality：
It can be seen that after passing through the strengthened purification system circulated twice for high organic water water quality in example 2, water quality base
Originally discharge standard is reached, water outlet will not produce main stem water quality high load capacity influence after being directly entered main stem, less than river
From net load.
Claims (8)
- A kind of 1. online method for administering black-odor riverway water body, it is characterised in that the method comprises the following steps：1) set up and the mutually isolated at least one purification channel of main stem, the purification channel along riverbank in sewage draining exit side Water inlet connected with sewage draining exit, the water outlet of the purification channel is connected with main stem；2) waste water of sewage draining exit discharge is carried out to wastewater sedimentation processing using precipitation unit successively in purification channel；3) Anaerobic Treatment is carried out with anaerobic unit to waste water after precipitation process；4) oxidation processes are carried out with catalytic oxidation unit to waste water after Anaerobic Treatment；5) waste water after oxidation processes is reprocessed using plant unit.
- 2. the as claimed in claim 1 online method for administering black-odor riverway water body, it is characterised in that the precipitation unit is The high-molecular porous sieve being connected with water conservancy diversion barricade, high-molecular porous 0.5~2cm of mesh size.
- 3. the as claimed in claim 1 online method for administering black-odor riverway water body, it is characterised in that the anaerobic unit is The plastic film for the fold being covered on purification channel river surface, film one end and the refluence barricade that suspends are Nian Jie connected, and the other end is set Put on riverbank.
- 4. the online method for administering black-odor riverway water body as claimed in claim 1, it is characterised in that the catalytic oxidation list Member includes bottom of river channel micropore EPDM aeration tubes, wherein 10~50 μm of micropore size, 120 ° of diffusion angle, between aeration tube is laid with EveryBiologic packing material is hung under the plastics floating frame that the water surface is connected with water conservancy diversion barricade, plastics floating frame.The plant unit planting plants are Haloragidaceae Myriophyllum spicatum, and planting density is 20 Cong/㎡.
- 5. the as claimed in claim 1 online method for administering black-odor riverway water body, it is characterised in that the purification channel is It is manufactured in the steps below：Riverbank preset distance is spaced in river suspension water conservancy diversion barricade is set, water conservancy diversion barricade is arranged in parallel with riverbank；Water conservancy diversion barricade Including rubber separation layer, top plastic float, bottom sandbag counterweight, the expansion height for the refluence barricade that suspends is the 150% of the depth of water ~200%；Wherein, water conservancy diversion barricade upstream end is located at sewage draining exit upstream.
- 6. a kind of online system for administering black-odor riverway water body, it is characterised in that the system includes：At least one purification channel mutually isolated with main stem is set up along riverbank in sewage draining exit side；The purification channel Water inlet is connected with the sewage draining exit positioned at upstream, and the water outlet of the purification channel is connected with main stem；2) sewage draining exit downstream sets gradually precipitation unit, anaerobic unit, catalytic oxidation unit and plant unit in purification channel.
- 7. the as claimed in claim 6 online system for administering black-odor riverway water body, it is characterised in that the purification channel is It is spaced what the suspension water conservancy diversion barricade that riverbank is set surrounded in main stem, suspension water conservancy diversion barricade is arranged in parallel with riverbank；Wherein, lead Stream barricade includes rubber separation layer, and top plastic float, bottom sandbag counterweight, the expansion height for the refluence barricade that suspends is the depth of water 150%~200%；Wherein, water conservancy diversion barricade upstream end is located at sewage draining exit upstream.
- 8. the as claimed in claim 6 online system for administering black-odor riverway water body, it is characterised in that the precipitation unit is The high-molecular porous sieve being connected with water conservancy diversion barricade, high-molecular porous 0.5~2cm of mesh size；The anaerobic unit is the plastic film for the fold being covered on purification channel river surface, and gear is flow backwards in film one end with suspending Wall bonding is connected, and the other end is arranged on riverbank；The catalytic oxidation unit includes bottom of river channel micropore EPDM aeration tubes, wherein 10~50 μm of micropore size, diffusion 120 ° of angle, aeration tube are laid with intervalIn the plastics floating frame that the water surface is connected with water conservancy diversion barricade, plastics floating frame Biologic packing material is hung under frame；The plant unit planting plants are Haloragidaceae Myriophyllum spicatum, and planting density is 20 Cong/㎡.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258467A (en) * | 2019-06-25 | 2019-09-20 | 中国建筑第八工程局有限公司 | River pollution cutting device and its construction method |
| CN111003805A (en) * | 2018-12-27 | 2020-04-14 | 浙江省农业科学院 | In-situ flow-dividing treatment system and method for river drain outlet |
| CN111960546A (en) * | 2020-08-07 | 2020-11-20 | 中原环保知和(郑州)水环境科技有限公司 | Enhanced denitrification artificial lake and application method thereof |
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Application publication date: 20180417 |