CN105565589A - Built-in biochemical-ecological system based on in-river rainwater runoff purification river bank - Google Patents
Built-in biochemical-ecological system based on in-river rainwater runoff purification river bank Download PDFInfo
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- CN105565589A CN105565589A CN201510921834.0A CN201510921834A CN105565589A CN 105565589 A CN105565589 A CN 105565589A CN 201510921834 A CN201510921834 A CN 201510921834A CN 105565589 A CN105565589 A CN 105565589A
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal 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
- C02F2103/001—Runoff or storm water
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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
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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
- C02F3/30—Aerobic and anaerobic processes
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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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- Organic Chemistry (AREA)
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Abstract
The invention discloses a built-in biochemical-ecological system based on an in-river rainwater runoff purification river bank. The built-in biochemical-ecological system is formed by five parts of a rainwater desanding well, a rainwater runoff rubble filter dam, an anaerobic organism filter dam, a bidirectional flow wetland purification system and a rubble slope protection in-river water quality repairing system. The built-in biochemical-ecological system disclosed by the invention has the advantages of no energy consumption, ecologicalization, landscaping, and efficient rainwater runoff purification, can guarantee the in-river water quality, and is a necessary means for realizing long effectiveness of river governance; meanwhile, the built-in biochemical-ecological system has a function of repairing a water body, realize rainwater containment, and is an effective measure for building a sponge type city at present; the built-in biochemical-ecological system is positioned at the inner part and the upper part of the river bank, so that the land resource needs not to be additionally occupied, and flood discharging is not affected as the hydraulic radius of a river way is not reduced; meanwhile, a landscape effect of the river way can be increased, so that many purposes can be achieved at one stroke.
Description
Technical field
The present invention relates to a kind of city inland river pollution biochemistry, ecological management and repair system, particularly relating to a kind of for entering inland river rainfall runoff biochemistry-ecological composite purification system.
Background technology
, at first stage of construction, there is one or several city inland river in each city, and its major function is flood discharge in rainy season and urban sewage river.Along with the raising of the level of urbanization, people are also more and more higher to environmental quality requirement, also change view, ecology and flood discharge river into by blowdown flood discharge river to the function of water body of city inland river.But because the water quality of the first rain in city is poor, rainwater after surface runoff close to or exceed the water pollution degree of city domestic sewage, average COD value is greater than 100mg/L, sometimes even up to 300mg/L, especially the level of nitrogen phosphorus is far away higher than national surface water body IV " water environment quality standard " (GB3838-2002) water quality requirement, and the long-term a large amount of existence of pollutent in water body must cause water body blackout to foul, be difficult to the requirement realizing landscape water body.For this reason, the improvement city inland river that governments at all levels actively make great efforts, under ensureing the prerequisite of its water body flood discharge function, purification beautifying water body, makes it to become the landscape that one, city is beautiful.
Known inland river water quality based technique for in-situ remediation comprises: 1, physical method: drainage dirt removal, consume a large amount of Freshwater resources, running cost is high.2, chemical process: chemical flocculation, chemical flocculation treatment technology is a kind of by adding chemical agent removal aquifer pollution thing to reach the sewage disposal technology improving water quality.Chemicals is to the secondary pollution of hydrobiological toxicity and the ecosystem, and the application of this technology has significant limitation, generally uses as jury.3, microbial process: add microbial strains, by directly to polluted-water access contaminant degradation bacterium, thus suppresses harmful microbe growth, movable, and organic contamination and remove body eutrophication material in degraded waters.Above original position Treatment process all exist running cost high, lack long-lasting problem.4, Wetland ecological method: Wetland ecological original position Treatment process has low, long-lasting good, the advantage such as landscape effect is good of running cost, but the runoff wetland be directly arranged in river course or floating island wetland can occupy river course flood discharge passage, reduce the hydraulic radius in river course, affect flood passage, and be difficult to implement on a large scale, subsurface wetland washes away due to river flood passage, and hydraulic resistance is large, just in the more impossible river course being arranged in any inland river.Propose based on the built-in ecological purification system of river levee, this treatment system is all arranged on river levee inside, neither affects flood discharge for this reason, also having height purifies into river rainfall runoff, the advantage that landscape effect is good, the original position realizing inland river water pollutant is administered, and storm water conservation is regulated and stored.
Biochemistry-ecological pollution Treatment process mainly utilizes microorganism, substrate microorganism, this composite bio-chemical-ecosystem of plant to carry out original position physics, chemistry, microorganism, plant triple role to contaminated rain water, and by the filtration of microbial decomposition, matrix, absorption, plant absorption decomposes, microbiological deterioration realizes sewage purification.River levee intrasystem microbial decomposition organic pollutant becomes the material of short grained ionic state by plant assimilating absorption, becomes the nutritive substance of plant-growth, purifies water while Promoting plant growth, realize ecological water quality purification.
Summary of the invention
The present invention is directed to the purified in situ technology Problems existing of inland river pollution runoff rainwater, and traditional current wetland is directly arranged in the hydraulic radius that can reduce river course in river course and affects flood discharge, and floating island wetland does not have sufficient hypothallus to realize suspended state, a difficult problem for decontamination effect improving difference, provides a kind of based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee.This system has Non-energy-consumption, ecology, landscape, efficient rainfall runoff purification, ensures into river matter, is to realize inland river to administer long-lasting inevitable means, and also have the function of repairing water body, implicit rainwater is the effective measure of building sponge-type city at present simultaneously.And it is positioned at the inner and top of river levee without the need to other land occupation resource, the hydraulic radius also not reducing river course affects flood discharge, while can also increase the landscape benefit in river course, can be and achieve many things at one stroke.
The object of the invention is to be achieved through the following technical solutions:
A kind of based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, comprise rainwater except sand drain, rainfall runoff rubble filter dam, anaerobe filter dam, bidirectional flow wetland purification system and rubble mound Ha Noi Water quality restoration system five part, wherein:
Described rainwater removes sand drain and is built in river levee;
Described rainfall runoff rubble filter dam is the rubble mound be connected with rainwater desanding down-hole portion, bottom is provided with perforation rainwater-collecting and water distributor, enter after the rainwater-collecting on rainfall runoff rubble filter dam in Anaerobic Purification unit, and realize water distribution uniformity in the bottom of anaerobe filter dam system;
Described anaerobe filter dam is entering between rainfall runoff rubble filter dam, river and rubble mound Ha Noi Water quality restoration system, inner filling fibrous carrier filler, and top is perforated support and water distribution board;
The described bidirectional flow wetland purification system described in bidirectional flow wetland purification system comprises Wetland Substrate, wetland plant and wetland Overflow drainage mouth, Wetland Substrate is positioned at the top on anaerobe filter dam, plant in Wetland Substrate and be implanted with wetland plant, overflow port is arranged on the top-side of bidirectional flow wetland purification system;
Described rubble mound Ha Noi Water quality restoration system is positioned at inside river levee, and inner slope forms bank protection along the river.
The process of described process section is: rainfall runoff flows into rainwater except sand drain, downward inflow rainfall runoff rubble filter dam, filter through rainfall runoff rubble filter dam, rainwater perforated rainwater-collecting and water distributor bottom filter dam are collected, flow into anaerobe filter dam, and form water distribution in the bottom on anaerobe filter dam, to upwelling, flow through fibrous carrier filling surface, after anaerobism purification, flow into bidirectional flow wetland purification system through perforated support and water distribution board finally to drop and enter inland river, rubble mound Ha Noi Water quality restoration system utilizes the hole between gravel, and the internal water quality of microbial film formed in hole is repaired further, high-water is repaired, low-water level is to microbial film oxygenation, form the dynamic restoring to river, final realization all purifies renovation technique process.
Tool of the present invention has the following advantages:
1, realize the built-in ecological purification of river levee into river rainfall runoff, construction cost is low, and running cost is low, long-lasting good, and landscape effect is good;
2, position, wetland river levee top is arranged, can not reduce the flood discharge hydraulic radius in river course, not affect flood discharge, the high-order draining of wetland can also form effective drop water aeration, increases the dissolved oxygen value of river water body;
3, river levee rubble ecological revetment, realizes inland river water quality in-situ immobilization, all has long-lasting;
4, the built-in biochemistry-ecosystem of river levee of the present invention has the function of implicit rainwater, forms the effective means that sponge-type river levee is sponge-type urban construction;
5, the built-in biochemistry-ecosystem structure of river levee of the present invention is simple, and build flexibly, easy to maintenance, south, the north all can adopt.
Accompanying drawing explanation
Fig. 1 is for entering inland river rainfall runoff purification river levee built-in biochemistry-ecosystem figure;
Fig. 2 is for entering inland river rainfall runoff purification river levee built-in biochemistry-ecosystem vertical view;
Fig. 3 is 1-1 sectional view;
Fig. 4 is 2-2 sectional view.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described; but be not limited thereto; everyly technical solution of the present invention modified or equivalent to replace, and not departing from the spirit and scope of technical solution of the present invention, all should be encompassed in protection scope of the present invention.
As Figure 1-4, provided by the invention based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee by rainwater except sand drain 1, rainfall runoff rubble filter dam 2, anaerobe filter dam 3, bidirectional flow wetland purification system 4 and rubble mound Ha Noi Water quality restoration system 5 five part and form, wherein:
Described rainwater removes sand drain 1 and is built in river levee, comprise coarse rack 1-1, fine fack 1-2, slag removing hole cover plate 1-3, coarse rack 1-1 is entering the oblique 70 degree of angles installation except sand drain 1 top water inlet rolls of river rainwater, coarse rack 1-1 spacing 8-10mm, grate area is greater than 0.5m2, and concrete data are according to Rainfall runoff; Fine fack 1-2 is in sand drain, and tilt 75 degree of angles, and side relative to the direction that rainwater flows into is installed, and cover all bottom rubble layers, coarse rack 1-1 and fine fack 1-2 tackles into river particulate matter, prevents blocking subsequent processing units and rough purification from entering river rainwater; Slag removing hole cover plate 1-3 is at the top of well, and mouth width is greater than 1m, is beneficial to scarfing cinder.
Described rainfall runoff rubble filter dam 2 be and enters river rainwater and remove the rubble mound that sand drain 1 bottom is connected, rubble mound utilizes woven wire fixedly to form along the outer slope of river levee by the rubble 2-2 of particle diameter 5-10cm, the outside 2-1 of rubble mound adopts Concrete Filled with the waterwall 2-4 filtering dam system 3 side near anaerobe, filling thickness 10cm, prevent the rainwater flowed into from directly flowing out, guarantee that rainwater flow into the bottom of river levee from top to bottom; The bottom entering rainfall runoff rubble filter dam, river system 2 is provided with perforation rainwater-collecting and water distributor 2-3, enters in Anaerobic Purification unit after rubble being filtered the rainwater-collecting of side, dam, and realizes water distribution uniformity in the bottom of anaerobe filter dam system 3.
Described anaerobe filter dam 3 is entering between rainfall runoff rubble filter dam 2, river and rubble mound Ha Noi Water quality restoration system 5, for the rectangle form pool body of being encircled a city by base plate 3-4, waterwall 2-4, concrete water-retaining wall 3-2 and perforated support and water distribution board 3-3, this unit utilizes waterwall 2-4 and concrete water-retaining wall 3-2 anaerobic unit and both sides bank protection to be separated, and forms independently processing unit.Rainwater passes through after perforation rainwater-collecting below river rainfall runoff rubble filter dam 2 and water distributor 2-3 collect rainwater, and water conservancy diversion enters anaerobe filter dam 3, utilizes bottom perforated pipe to be upwards uniformly distributed rainwater, realizes cloth water function.Load fibrous carrier filler 3-1 in anaerobe filter dam 3, filler adopts wireline to be fixed in anaerobic unit, and it is 30% that fibrous carrier filler 3-1 loads density.The top on anaerobe filter dam 3 is perforated support and water distribution board 3-3, percentage of open area 70%, pore diameter 5mm, support, top bidirectional flow wetland purification system 4, rainy season rainwater also can by bidirectional flow wetland purification system 4 penetrate into anaerobe filter dam 3 store purification, form two-way water purification function.
Described bidirectional flow wetland purification system 4 is positioned at the top of river levee, comprise Wetland Substrate 4-1, wetland plant 4-2 and wetland Overflow drainage mouth 4-3, Wetland Substrate 4-1 from the bottom to top total thickness is 60cm, and underlayer thickness is the pebble bed particle diameter (d5mm-10mm) of 20cm; Intima-media thickness 20cm; particle diameter 2mm-1mm(loam layer); upper thickness 20cm gravel protective layer, particle diameter (5mm-10mm), prevents loam to run off; wetland plant 4-2 is that Canna generalis Bailey or fairy bamboo etc. view and admire water purification plant; this wetland has two-way purification function, and rainwater both can enter anaerobe by top wetland diafiltration and filter dam 3, when anaerobe filter dam 3 stores after full water also can up-flow; filter through over-wet land, enter river course by top-side overflow port 4-3 drop.
Described rubble mound Ha Noi Water quality restoration system 5 is positioned at inside river levee, and adopt the rubble of particle diameter 5-10cm to tie up fixing via woven wire, inner slope forms bank protection along the river, utilizes the Biomembran repair inland river water quality in the gap of rubble simultaneously.
This system design, with river levee main body, is namely river levee, is again the function that rainwater purification facility also has landscape walkway and implicit rainwater, can design the width of river levee according to Rainfall runoff and water quality.The treatment system that rainfall runoff rubble filter dam 2, anaerobe filter dam 3 and bidirectional flow wetland purification system 4 are formed jointly is the core of this river levee.
technological principle:
Rainfall runoff purifies through rainwater influx coarse rack 1-1 and flows into rainwater except sand drain 1, tiny particulate matter is again separated through fine fack 1-2 in well, rainwater is dirty enters rainfall runoff rubble filter dam 2, manually can be removed by the particulate matter that fine fack 1-2 tackles by slag removing hole cover plate 1-3.Collect through perforation rainwater-collecting and water distributor 2-3 in the bottom on filter dam after filter dam filters and conflux, flow into anaerobe filter dam 3, the biological membrane anaerobic formed by fibrous carrier filler 3-1 surface in anaerobe filter dam 3 purifies, effective organics removal etc., up-flow enters bidirectional flow wetland purification system 4, by the filtration of matrix in Wetland Substrate 4-1, pollutent in water body is adsorbed on hypothallus inside by absorption, by the micropopulation in matrix, under the cooperation of self-ventilation oxygenating system, aerobic decomposition is carried out to pollutent, double oxygen and anaerobic environment is generally in the inside of matrix granule, macrobead organism (protein is effectively decomposed under the synergy of double oxygen and anerobe, fat, polysaccharide) enter small molecules, by absorptions such as wetland plant 4-2 plant Canna generalis Baileys, Promoting plant growth.Simultaneously porous matrix and plant thereof can also heavy metals in active adsorption water body.Fully purify water.Water after purification enters river course through top position wetland Overflow drainage mouth 4-3.In river course, form drop water aeration, improve the dissolved oxygen levels into river rainwater.The microbial film that river in river course is formed by the particle surface of rubble mound is repaired Ha Noi water quality, and purification ensures that water quality reaches the requirement of four class water quality.
Rainfall runoff, by flowing into river course again after wetland variation, permanently effectively can guarantee that the water body in river course keeps IV class water quality.So be a kind of effective inland river pollution governing system based on the suspended wall of rainfall runoff from oxygenation subsurface flow wetland system.
Claims (10)
1. one kind based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described system by rainwater except sand drain, rainfall runoff rubble filter dam, anaerobe filter dam, bidirectional flow wetland purification system and rubble mound Ha Noi Water quality restoration system five part and form, wherein:
Described rainwater removes sand drain and is built in river levee;
Described rainfall runoff rubble filter dam is the rubble mound be connected with rainwater desanding down-hole portion, bottom is provided with perforation rainwater-collecting and water distributor, enter after the rainwater-collecting on rainfall runoff rubble filter dam in Anaerobic Purification unit, and realize water distribution uniformity in the bottom of anaerobe filter dam system;
Described anaerobe filter dam is entering between rainfall runoff rubble filter dam, river and rubble mound Ha Noi Water quality restoration system, inner filling fibrous carrier filler, and top is perforated support and water distribution board;
Described bidirectional flow wetland purification system comprises Wetland Substrate, wetland plant and wetland Overflow drainage mouth, Wetland Substrate is positioned at the top on anaerobe filter dam, plant in Wetland Substrate and be implanted with wetland plant, overflow port is arranged on the top-side of bidirectional flow wetland purification system;
Described rubble mound Ha Noi Water quality restoration system is positioned at inside river levee, and inner slope forms bank protection along the river.
2. according to claim 1 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described rainwater removes sand drain and comprises coarse rack, fine fack and slag removing hole cover plate, coarse rack is entering the oblique 70 degree of angles installation except sand drain top water inlet rolls of river rainwater, fine fack is in sand drain, tilt 75 degree of angles, side relative to the direction that rainwater flows into is installed, and cover all bottom rubble layers, slag removing hole cover plate is at the top of well.
3. according to claim 2 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described coarse rack spacing 8-10mm, grate area is greater than 0.5m
2, the mouth width of slag removing hole cover plate is greater than 1m.
4. according to claim 1 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described rubble mound utilizes woven wire fixedly to form along the outer slope of river levee by the rubble of particle diameter 5-10cm, the outside of rubble mound adopts Concrete Filled with the waterwall filtering system side, dam near anaerobe, and filling thickness is 10cm.
5. according to claim 1 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described fibrous carrier filler adopts wireline to be fixed in anaerobic unit, loading density is 30%.
6. according to claim 1 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that the percentage of open area 70% of described perforated support and water distribution board, pore diameter 5mm.
7. according to claim 1 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described Wetland Substrate is followed successively by pebble bed, loam layer and gravel protective layer from the bottom to top.
8. according to claim 1 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described wetland plant is Canna generalis Bailey or fairy bamboo.
9. according to claim 1 based on entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee, it is characterized in that described rubble mound Ha Noi Water quality restoration system adopts the rubble of particle diameter 5-10cm to tie up fixing via woven wire.
10. to utilize described in the arbitrary claim of claim 1-9 based on the method entering the built-in biochemistry-ecosystem of inland river rainfall runoff purification river levee and realize the built-in ecological purification of river levee into river rainfall runoff, it is characterized in that described method steps is as follows:
Rainfall runoff flows into rainwater except sand drain, downward inflow rainfall runoff rubble filter dam, filter through rainfall runoff rubble filter dam, rainwater perforated rainwater-collecting and water distributor bottom filter dam are collected, flow into anaerobe filter dam, and form water distribution in the bottom on anaerobe filter dam, to upwelling, flow through fibrous carrier filling surface, after anaerobism purification, flow into bidirectional flow wetland purification system through perforated support and water distribution board finally to drop and enter inland river, rubble mound Ha Noi Water quality restoration system utilizes the hole between gravel, and the internal water quality of microbial film formed in hole is repaired further, high-water is repaired, low-water level is to microbial film oxygenation, form the dynamic restoring to river, final realization all purifies renovation technique process.
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| CN106430608A (en) * | 2016-11-30 | 2017-02-22 | 郑州大学 | In-situ biological-ecological recovery integrated system for urban river water body |
| CN106854866A (en) * | 2017-02-24 | 2017-06-16 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of river adds the waterway system of tunnel |
| CN108083578A (en) * | 2017-12-27 | 2018-05-29 | 北京东方利禾景观设计有限公司 | A kind of preposition cleaning system of water body and its construction method being used for into water section |
| CN108423919A (en) * | 2018-01-30 | 2018-08-21 | 苏州农业职业技术学院 | A kind of permeable purification dam that nitrogen phosphorus intercepts |
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