CN110028161A - Riverway water quality purification system and method - Google Patents
Riverway water quality purification system and method Download PDFInfo
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- CN110028161A CN110028161A CN201910222339.9A CN201910222339A CN110028161A CN 110028161 A CN110028161 A CN 110028161A CN 201910222339 A CN201910222339 A CN 201910222339A CN 110028161 A CN110028161 A CN 110028161A
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to water environment treatment field technical fields, disclose a kind of riverway water quality purification system and method.The riverway water quality purification system includes the first ecological net cage being laid on river bank slope, and connect with the described first ecological net cage, on the direction moved towards perpendicular to river across the second ecological net cage in river row pool；The second ecological net case includes wire gabion box, filler, and for wrapping up the filler and the solid bag of geotechnique being arranged in the wire gabion box together with the filler, the filler includes the base particulate material mixed by clay mineral, activated carbon, zeolite, pyrite and lime stone and the mediator modified plant fiber felt of the quinone being embedded in the base particulate material.Differently composed ecological net cage is arranged based on the different zones in river for system, and the performance that achievees the effect that depollute is stable, adaptable, at low cost.
Description
Technical field
The invention belongs to technical field of water environment treatment, and in particular to a kind of riverway water quality purification system and method.
Background technique
Deterioration and shortage of fresh water with water environment utilize the ecology of water environment in ecological treatment system purification river
Engineering technology is excellent because having that small investment, facility are simple, do not generate secondary pollution, energy consumption is low, convenient for management, clean effect is good etc.
Point becomes the research hotspot of Water Environmental Pollution Control.Conventional ecology net cage is by wire gabion box, the solid bag of geotechnique, native stone filling
Object and vegetable fiber blanket are formed.Underwater ecological net cage is using rubble as filler, and by side slope and canal bottom is repaired and net cage
It is laid with, so that channel visual experience is more smooth, aesthetics is preferable.Ecological net cage waterborne is spy with surface layer vegetable fiber blanket
Point, so that preferable afforestation effect is presented in channel two sides bank slope waterborne.But such ecological net cage for sewage regulation effect compared with
Difference.Over time, polluter can be accumulated to ecological net cage surface in channel, generate new pollution.Therefore, it needs out
Hair removal capacity is stable, adaptable, at low cost, combines the water purification system and method for beautification river process.
Summary of the invention
In view of this, the system is based in river the embodiment of the invention provides a kind of riverway water quality purification system and method
Differently composed ecological net cage is arranged in the different zones in road, and the performance that achievees the effect that depollute is stable, adaptable, at low cost.
First aspect of the embodiment of the present invention provides riverway water quality purification system, comprising: is laid on more on river bank slope
A first ecological net cage, and connect with the described first ecological net cage, on the direction moved towards perpendicular to river across river row
The ecological net cage of multiple the second of pool；
Second net cage includes wire gabion box, filler, and for wrapping up the filler and together with described
Filler is arranged in the geotechnique in the wire gabion box and consolidates bag, and the filler includes by clay mineral, activated carbon, boiling
Base particulate material that stone, pyrite and lime stone mix and the quinone mediator being embedded in the base particulate material change
Property plant fiber felt.
Differently composed ecological net cage is laid on the different zones in river by the embodiment of the present invention, has both reached beautification river
Effect, and the second ecological net cage being arranged in river has the function of synergistic sorption precipitating and is catalyzed microbial degradation,
Removal pollution physical performance is stable, at low cost, effect is good, adaptable.
The partial size of the clay mineral is 0.5-2mm, the activated carbon, zeolite, pyrite in one of the embodiments,
Partial size with lime stone is 2-5mm.
The clay mineral, activated carbon, zeolite, pyrite and lime stone mass percent in one of the embodiments,
It is corresponding in turn to are as follows: 25-40%, 5-15%, 15-25%, 15-25% and 10-20%.
Multiple the described second ecological net cages across river row pool are spliced into wall shape in one of the embodiments,
5-15m is spaced between the ecological net cage of described the second of neighboring walls shape.
Second aspect of the embodiment of the present invention provides a kind of riverway water quality purification method, comprising the following steps:
Above-mentioned riverway water quality purification system is laid in the river of quasi- purification；
Terrestrial plant is planted in the described first ecological net cage, the planting aquatic plants on the second ecological net cage.
The method that the embodiment of the present invention is purified based on ecological net cage passes through the second ecological net cage mesostroma granular materials
Adsorption precipitation, the absorption absorption of plant, microbial degradation etc. organically combine, reach efficiently removal water environment gross contamination object and
Persistently remove the purpose of pollutant.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of water purification system provided in an embodiment of the present invention；
Fig. 2 is the cross-sectional configuration schematic diagram in river in Fig. 1；
Fig. 3 is removal effect figure of the embodiment of the present invention to river A pollutant；
Fig. 4 is removal effect figure of the embodiment of the present invention to another river B pollutant；
Fig. 5 is that modified plant fibers felt biocatalysis strengthens NO3 -- N degradation property；
Fig. 6 is that modified plant fibers felt biocatalysis strengthens COD degradation performance；
Wherein, the ecological net cage of 10- first, the ecological net cage of 20- second, 201- water plant, the river 30-, 31- bank slope,
The river 32- row pool.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, omit to well-known system, device and
The detailed description of method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Fig. 1 shows 30 water purification system of river comprising: multiple first be laid on the bank slope 31 in river 30 are raw
State net cage 10, and connect with the described first ecological net cage 10, on the direction moved towards perpendicular to river 30 across river Hang Shui
The ecological net cage 20 of multiple the second of area 32.Described second ecological net cage 20 includes wire gabion box, filler, and is used for
It wraps up the filler and the geotechnique being arranged in the wire gabion box together with the filler consolidates bag, the filler packet
It includes the base particulate material mixed by clay mineral, activated carbon, zeolite, pyrite and lime stone and is embedded in the base
The mediator modified plant fiber felt of quinone in matter granular materials.The wire gabion box is used to form mediator regulation ecological net cage
Frame plays the role of support and limit filler, is often the netted of wire establishment, mesh can be regular hexagon, and side length is
5-8cm。
Frame and supporting role of the wire gabion box as mediator regulation ecological net cage, size (length × width × height)
For 160-240cm × 80-120cm × 20-40cm.
Clay mineral can provide the carrier of the growth of water plant 201, the adsorbable organic matter of activated carbon, the adsorbable ammonia of zeolite
Dissolved oxygen in nitrogen, heavy metal and increase water environment, pyrite can be used for denitrification and flocculation sedimentation dephosphorization, and lime stone can be made
Removal for precipitating reagent for trace meter in water.On the one hand the mediator modified plant fiber felt of quinone can be plant and the micro- life of root system
The growth of object provides carrier, while quinone mediator has and accelerates electron transfer function, can enhancement microbiological redox active from
And improve the rate of the biological oxidation-reductions such as the oxidation of organic matter, the reduction of nitrate.Described first ecological net cage 10 is adopted
With the ecological net cage of conventional slope protection.
In the present embodiment, it is intensively laid with one layer along the bank slope 31 in river 30 or splices one layer according to the effect of other beautifications
The first ecological net cage 10 beautifies bank slope 31 for kind of a terrestrial plant, while playing purification and flowing into the rainwater in river 30 and solid
Husky function.Described second ecological net cage 20 is combined with clay mineral, activated carbon, zeolite, pyrite and lime stone as matrix
Granular materials has the function of adsorption precipitation, and the growth for plant and rhizosphere microbial provides carrier；Quinone improved plant is fine
Dimension felt has the function of catalytic intensification microbial degradation pollutant, and further the pollutant of absorption is degraded, reaches collaboration
Handle the effect of pollutant.The effect of can achieve removal pollutant steady in a long-term by the system, referring to Fig. 1 and Fig. 2.
For preferably adsorption precipitation pollutant, and the environment of growth is provided for water plant 201, the clay mineral
Partial size is 0.5-2mm, the activated carbon, zeolite, pyrite and lime stone partial size be 2-5 mm.
In order to make the second ecological net cage 20 that there is universality, clay mine in base particulate material to 30 purification of water quality of river
Object, activated carbon, zeolite, pyrite and lime stone mass percent be corresponding in turn to are as follows: 25-40%, 5-15%, 15-25%,
15-25% and 10-20%.
It certainly, can be by adjusting hundred of component in base particulate material in the case where being determined for 30 pollutant of river
Divide and removes pollutant than carrying out specific aim.For example, working as organic matter in river 30 is major pollutants, the percentage of active carbon is preferred
10-15%；Or when ammonia nitrogen in river 30 or phosphorus are major pollutants, the mass percent of zeolite is 20-25%；Or when nitrate nitrogen or
Phosphorus is major pollutants, and the mass percent of pyrite is 20-25%.
In one of the embodiments, the mediator modified plant fiber felt of the quinone the preparation method comprises the following steps: using Rapid Circulation
Voltammetry forms the polymeric membrane of doping quinone mediator on plant fiber felt surface.
The fast Cyclic Voltammetry using graphite electrode is charging electrode and auxiliary electrode, using saturated calomel electrode as reference
Electrode, polymerization current potential are 10-20V, and polymerization time 1-6h, polymeric solution is 3-8 for the aqueous solution containing quinone, aqueous solution pH.Contain
Quinone aqueous solution can be anthraquinone -2,6- sodium disulfonate (AQDS), anthraquinone-2-sodium (AQS), anthraquinone-1-sulfonic acid sodium (α -
AQS), the water-soluble quinones such as anthraquinone -1,5- sodium disulfonate (1,5-AQDS) and anthraquinone -2,7- sodium disulfonate (2,7-AQDS) is situated between
Body.
The mediator modified plant fiber felt of quinone is laid at the 10-20cm buried depth of the base particulate material.Quinone mediator
Modified plant fibers felt is the carrier that water plant 201 grows, and setting depth should not be too shallow, so as to 201 root system of water plant
It is come into full contact with filler, weakens influence of the souring of water flow to water plant 201 and its rhizosphere microbial；Also unsuitable
It is too deep, so that water plant 201 quickly grows ecological net cage, form purification of water quality ability.The preferred 15cm of buried depth.In the present embodiment
The buried depth refers to the distance or depth of upper surface of the mediator modified plant fiber felt of the quinone to filler.
As one of embodiment, the described first ecological net cage 10 includes wire gabion box, the solid bag of geotechnique and filling
Soil in the solid bag of the geotechnique；The soil of filling uses normal soil, for planting terrestrial plant, such as dog tooth
Root mainly afforests river 30 using terrestrial plant, while purifying the function of flowing into the rainwater in river 30 and fix the sand.
In one embodiment, multiple the described second ecological net cages 20 across river row pool 32 are spliced into
Wall shape is spaced 5-15m between the described second ecological net cage 20 of neighboring walls shape.The ecological net cage 20 of the second of the wall shape
It can be single layer dense accumulation and be spliced into stripe shape wall, the height of single layer is 20-40cm.And along the direction that river 30 moves towards
Together at interval of 5-15m setting.Therefore, can full basin without dead angle remove pollutant.
In other embodiments, the multiple described second ecological net cage 20 can also be spaced the grid type wall for being spliced into layer 2-4
Body.The interval of 60-100cm is equipped between the adjacent described second ecological net cage 20 of the grid type wall same layer；Adjacent layer
Between, the interval shifts to install.The interval of the 60-100cm passes through convenient for water flow, and every layer of height is 20-40cm, grid
Height be subject to and do not influence flood passage or other facilities.
In other embodiments, the grid type wall and the closely packed wall river 30 walk upwards successively between
Every setting, and between the adjacent grid type wall and closely packed wall between be divided into 5-15m.
As a specific embodiment, the method for carrying out purification of water quality using system above, comprising the following steps:
One, quinone modified plant fibers felt is prepared
(1) pretreatment of plant fiber felt: before preparing modified plant fibers felt, first by monolith plant fiber felt cut out for
80cm × 80cm size, and with rinsing several times, until there is no impurity outflow, 120 DEG C of dryings about 2 hours are then put in, are taken
It is spare out.
(2) weigh 30-40g AQS, measure 20-30mL pyrroles it is soluble in water, be placed in polymerization tank be sufficiently mixed uniformly.
(3) graphite electrode with plant fiber felt is worked electrode, naked graphite electrode does auxiliary electrode, is saturated calomel
Electrode does reference electrode, and uses fast Cyclic Voltammetry, carries out electropolymerization.Polymerization current potential is 12V；Polymerization time is 3h；It is poly-
Closing pH value of solution is 3.
(4) modified plant fibers felt is removed from working electrode after the completion of polymerizeing, is cleaned, it is spare.
By quinone modified plant fibers felt and unmodified plant fiber felt in removal COD (Chemical Oxygen
Demand, COD) and NO3 -Performance in terms of-N is compared.Experimental condition be respectively as follows: (carbon source is sodium succinate, temperature
30 DEG C of degree, initial pH is 7, activated sludge concentration 1500-2500mg/L, wherein being used for NO3 —The test C/N ratio of N degradation is 3.Examination
Test result referring to figs. 5 and 6.
The result shows that: quinones mediator has been aggregated to the surface of plant fiber felt.
Two, the ecological net cage 10 of preparation first and the second ecological net cage 20
First ecological net cage 10 is identical with the structure of the second ecological net cage 20, and only filler is different.First ecological net cage
Filling soil in 10.Filling is equipped with the base particulate material of above-mentioned quinone modified plant fibers felt, institute in second ecological net cage 20
State includes 30% clay mineral, 10% activated carbon, 20% zeolite, 20% pyrite and 20% lime stone in base particulate material.
Three, water purification system is constructed
River A is chosen as purification target.River A is averaged width 9.5m, mean depth 1-2m, 0.43 m/s of flow velocity, water quality
Condition are as follows: COD (Chemical Oxygen Demand, COD) 338 ± 25mg/L, TN (total nitrogen) 7.1 ± 2.4mg/
L、NH4 +-N 5.9±1.2mg/L、NO3 -1.2 ± 0.25mg/L of-N, TP (total phosphorus) 0.97 ± 0.13mg/L.
The first ecological net cage 10 is all laid on the bank slope 31 in river 30.It is arranged one every 5m in river row pool 32
Second ecological net cage 20 of the wall shape of road splicing, across the river 30 on the direction moved towards perpendicular to river 30, and the
Two ecological net cages 20 connect with the described first ecological net cage 10.
Four, planting plants
Bermuda grass is planted at the first ecological net cage 10, beautifies river 30.Be less than at 1m in second ecological 20 depth of water of net cage,
Slough and SEA LEVEL VARIATION area plantation reed and cattail, the depth of water be greater than at 1m Zhong Zhi ?the submerged plants such as algae, hornwort.
After system building, by purification in 3 months, COD in river A, total nitrogen and phosphorus be averaged disappear be reduced to 77.7%,
50.7% and 45.4%, and in (10 months) for a long time, water quality is good, keeps stablizing, referring to Fig. 3.
In a further embodiment, trend of the second ecological net cage 20 of the grid and the wall shape in river 30
On successively interval setting, and between the second ecological net cage 20 of the adjacent wall shape grid and the wall shape between be divided into
15m.With the water quality of system processing river B, river B mean breadth 38m, mean depth 1.7-2.4m, flow velocity 0.62m/s, water
Matter is 65 ± 13mg/L of COD, 4.1 ± 1.6mg/L of TN, NH4 +-N 3.6±0.5mg/L、NO3 --N 0.42±0.10mg/L、
The effect of 0.32 ± 0.09mg/L of TP, ecological net cage purification river 30 are shown in Fig. 4.From fig. 4, it can be seen that setting mediator regulates and controls life
After state net cage, water quality in river 30 can obviously improve, COD, NH after the purification of mediator regulation ecological net cage4 +- N's and TP is average dense
Degree is 34.3,1.88 and 0.17mg/L, and average removal rate is respectively 47.2%, 54.1% and 46.9%, and effluent quality reaches ground
Table water IV standard.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of riverway water quality purification system characterized by comprising multiple first ecological nets being laid on river bank slope
Case, and connect with the described first ecological net cage, on the direction moved towards perpendicular to river across multiple the of river row pool
Two ecological net cages；
The second ecological net case includes wire gabion box, filler, and for wrapping up the filler and together with described
Filler is arranged in the geotechnique in the wire gabion box and consolidates bag, and the filler includes by clay mineral, activated carbon, boiling
Base particulate material that stone, pyrite and lime stone mix and the quinone mediator being embedded in the base particulate material change
Property plant fiber felt.
2. riverway water quality purification system as described in claim 1, which is characterized in that the partial size of the clay mineral is 0.5-
2mm, the activated carbon, zeolite, pyrite and lime stone partial size be 2-5mm.
3. riverway water quality purification system as claimed in claim 2, which is characterized in that the clay mineral, activated carbon, zeolite,
Pyrite and lime stone mass percent are corresponding in turn to are as follows: 25-40%, 5-15%, 15-25%, 15-25% and 10-20%.
4. riverway water quality purification system as claimed in claim 3, which is characterized in that when organic matter is main pollution in river
Object, the percentage of active carbon are 10-15%；Or
When ammonia nitrogen in river or phosphorus are major pollutants, the mass percent of zeolite is 20-25%；Or
When nitrate nitrogen or phosphorus are major pollutants, the mass percent of pyrite is 20-25%.
5. riverway water quality purification system as described in claim 1, which is characterized in that the mediator modified plant fiber felt of quinone
The preparation method comprises the following steps: forming the polymeric membrane of doping quinone mediator on plant fiber felt surface using fast Cyclic Voltammetry.
6. riverway water quality purification system as claimed in claim 5, which is characterized in that the fast Cyclic Voltammetry is with graphite electricity
Extremely charging electrode and auxiliary electrode, using saturated calomel electrode as reference electrode, polymerization current potential be 10-20V, polymerization time 1-
6h, polymeric solution are 3-8 for the pH of aqueous solution, aqueous solution containing quinone.
7. riverway water quality purification system as described in claim 1, which is characterized in that the first ecological net case includes wire
Gabion box, the solid bag of geotechnique and the soil being filled in the solid bag of the geotechnique.
8. riverway water quality purification system as described in claim 1, which is characterized in that multiple across described the of river row pool
Two ecological net cages are spliced into wall shape, are spaced 5-15m between the ecological net cage of described the second of neighboring walls shape.
9. riverway water quality purification system as claimed in claim 8, which is characterized in that multiple described second ecological net cage closs packings
It is spliced into stripe shape wall or interval is spliced into grid type wall.
10. a kind of riverway water quality purification method, which comprises the following steps:
Such as the described in any item riverway water quality purification systems of claim 1-9 are laid in the river of quasi- purification；
Terrestrial plant is planted in the described first ecological net cage, the planting aquatic plants on the second ecological net cage.
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| CN201910222339.9A CN110028161A (en) | 2019-03-22 | 2019-03-22 | Riverway water quality purification system and method |
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| CN201910222339.9A CN110028161A (en) | 2019-03-22 | 2019-03-22 | Riverway water quality purification system and method |
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Cited By (2)
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| CN112679052A (en) * | 2021-02-01 | 2021-04-20 | 江苏聚慧科技有限公司 | Artificial water quality purification reef with reoxygenation function |
| CN114586591A (en) * | 2022-01-11 | 2022-06-07 | 中国地质大学（北京） | River channel ecological management method and system |
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