CN1102129C - Intensified ecological sewage decontaminating method for rivers, channels and ditches - Google Patents
Intensified ecological sewage decontaminating method for rivers, channels and ditches Download PDFInfo
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- CN1102129C CN1102129C CN98102839A CN98102839A CN1102129C CN 1102129 C CN1102129 C CN 1102129C CN 98102839 A CN98102839 A CN 98102839A CN 98102839 A CN98102839 A CN 98102839A CN 1102129 C CN1102129 C CN 1102129C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The present invention relates to a river or ditch sewage ecological strengthening self-cleaning method which is characterized in that river channel(ditch)space is used so that wet land oxidation ponds are formed by establishing a plurality of stages of base weirs; each stage of base weir is composed of bank slope vegetation, landscape aeration equipment, sprinkling aeration equipment, a wet land, a base weir and precipitation ditches in front of and behind the base weir, and river sewage orderly is purified through the action of various aquatic animals and plants in all stages of base weir wet land oxidation ponds and bank slope soil organisms. The method of the present invention is suitable for river ditches and river basins, has the advantages of less construction investment and optimal land utilization, and is a river sewage ecological strengthening self-cleaning method which has the characteristic of treatment in accordance with local condition, and less investment, and conforms to the principle of 'comprehensively utilizing and turning the harmful into the beneficial'.
Description
The invention belongs to sewage disposal technology, more precisely about the ecological treatment method of river irrigation canals and ditches water pollution.
Along with improving constantly of development of industry and agriculture and living standards of the people, the contradiction between environmental pollution and the Economic development becomes and becomes increasingly conspicuous, the public hazards that cause of water pollution wherein, and all pay much attention to countries in the world, proposes many Preventing Countermeasures and treatment technology.
Set up large-scale wastewater treatment plant at present, it is the method that generally adopts in the world that sewage is concentrated biochemical treatment.But these class methods exist input high, and expensive big, floor space is wide, and the restraining factors that treatment effect is subjected to are many, and problems such as the water quality of dispatching from the factory instability are difficult to apply for the relatively poor area of economic strength.In some rivers, discharge a large amount of plant effluent and sanitary sewage now every year.The river, the Huanshui River that for example belongs to Haihe basin, total length 160KM, it rises in the clear spring village of Linzhou City, Henan Province, behind the Anyang, defend the river and go into the Bohai Sea through Tianjin in the injection of 50KM place, the factory effluent and the sanitary sewage of more than 8,000 ten thousand tons of the annual dischargings of tame factory more than 30 will be admitted in this river, make this river become one to receive dirt, blowdown channel, littoral natural landscape quality descends greatly.
The objective of the invention is to overcome the deficiency of prior art, propose a kind ofly in conjunction with basin training works construction and invest for a short time, high efficiency makes full use of the place in river course, becomes to receive the river of dirt, discharging pollution and be the purifying method in " sewage-farm ".
River wastewater treatment process of the present invention: river wastewater flows through " the bio-based weir wetland oxidation pond " that multistage Ji Yan constitutes, reach sewage self-cleaning purpose, every grade of Ji Yan is made of the precipitation ditch before and after view aeration, sprinkling irrigation aeration, wetland, Ji Yan, the basic weir and the biological vegetation of levee slope or diafiltration material, to form the diafiltration of alternate cycles water, aeration and stable flocculation, to precipitate.
The present invention's's " bio-based weir wetland oxidation pond " construction method: adopt ecological management engineering and river desilting training works bonded construction method, promptly when the river dredging training works, can renovate a side riverbed embankment earlier, opposite side keeps the runoff draining.During regulation at first after the desilting along the river bed from bottom to top build by laying levee slope diafiltration ladder with the levee slope root step by step with brick, stone, hard fiber material, build Ji Yan by laying bricks or stones in interval, regulation river (canal) then, horizontal plane between the two-stage base weir is positioned at the 1/2-2/3 place of higher level's base height of weir degree and the top of the Ji Yan of subordinate, to form the wetland oxidation pond water surface, build step by step on so by the downstream, and then build by laying the opposite side riverbed by this method.The concrete construction method on bio-based weir: in the river course, select suitable distance to dig two 0.5 meter dark, 1 meter wide traverse furrow and promptly precipitate ditch: construct front and back, basic weir two walls with mechanically resistant materials such as masonry, cement, one-sided basal wall thickness 0.24-0.36 rice, between the front and rear wall apart from 0.52-0.78 rice, and be integral with steel reinforcing, then the earth before and after the weir is inserted the space of front and rear wall, become dark 0.5 meter, wide 1 meter antiseepage to precipitate ditch with masonry, cement masonry at last.In the end have two-three grades of rubber dams after the one-level bio-based weir, little stream canal can not built yet.Described basic weir can maintain the current plane of certain altitude, keep certain water level, can increase at water level again, when flow increases, has the effect of letting out under the draining, it constructs height 0.5-1.0 rice, width 0.5-1.0 rice (river that flow velocity is little, surging force is little, canal), flow velocity is rapid, and it is 1-1.5 rice that width is constructed in the river that surging force is bigger.
Wetland oxidation pond of the present invention is the waters general designation of the water surface degree of depth below two meters, has multiple aquatic vascular plant and aquatic miniature organism on it, can purify water, and has the function that good habitat is provided for wild fauna and flora.The wetland oxidation pond treatment system that forms can precipitate, adsorb, filters, fixes, ion-exchange, complex reaction, nitrated, denitrification, nutritive element absorb, the processes such as dissimilation of biological metabolism conversion and bacterium, fungi, especially aquatic macrophyte has flourishing root system, justacrine has mucus, become the attaching substratum of miniature organism, can produce effective microorganism flocculation, precipitation, absorption, diafiltration, Decomposition to polluted water, improve the sewage purification rate.
Precipitation ditch before and after the basic weir of the present invention can deposit a certain amount of settling, needs periodic cleaning, and every grade of interior settling of precipitation ditch is drawn into and carries out ecological material cycle utilization on the levee slope at the same level.This settling is the digested sludge that is become by biological degradation under anaerobism or aerobic condition, helps absorbing of plant, has the utility value of exploitation ecological economy resource, avoids secondary pollution, reduces training of channel quantities.
The above wetland oxidation pond that forms in basic weir of the present invention is the improvement sewage method that combines with wet land treating system, and is incomplete same with the oxidation pond described in the sewage water treatment method of classics.Its ultimate principle is to utilize the self-purification capacity of nature water body and ecological purification effect and the levee slope soil and the vegetation treatment system of aquatic animals and plants, promotes organic matter decomposition, handles the metabolism toxicity of waste water degraded water quality.
Described view aeration, be at broad river surface, the rainer range does not reach the central section, river of bank levee slope, by the various combination form, be equipped with color lamp,, make it have ornamental value to form fountain sight formula aeration mode, have abundant ingress of air oxygenation again, quicken the decomposition rate of water pollutant.
Described sprinkling irrigation aeration, be that the bank waterside is located rationally by the dress sprinkling irrigation equipment along the river, its range can reach top, embankment slope, the sewage sprinkling irrigation aeration water yield of every grade of Ji Yan should equal the flooding quantity of Ji Yan at the same level, its effect is: can irrigate the embankment plant, allow the soil organisms decomposing pollutant, can strengthen the contact area with air again, fully aeration aerating quickens the aerobic decomposition of pollutent; Can also when the rainer maximum range also is difficult to arrive the top, levee slope skirt sprinkling irrigation aerating apparatus can be set at tall and big riverbank levee slope, promptly adopt slope soil pipe laying down, skirt upwards carries out aeration at embankment top arrangement shower nozzle, also helps in the winter time levee slope temperature canopy plant is irrigated.
Bio-based of the present invention weir is in the purge cases of different water phase:
During the river whereabouts, become inner lead between each basic weir, prolong the high-concentration sewage residence time,, increase the number of times that diafiltration is flowed and exchanged by sprinkling irrigation levee slope soil vegetative cover.In addition, because the water surface is stable, change of water quality speed is unhappy, therefore the biological species that is adapted under this water area ecological environment condition takes place correspondingly to make a variation, survive, breed, set up new ecological symbiotic relationship, mutually collaborative decomposing pollutant and meta-bolites, the pollution degradation material promotes absorbing of sewage purification and plant.
During eagre, current surpass dam crest, can be had drop simultaneously by the biofiltration of basic weir crest portion, absorption, produce nature drop and hydraulic jump, increase the aeration aerating process, promote the purification of pollution substance;
The flood discharge phase, the dilution water yield in upstream is big, and floating plant, pleuston, zooplankton are flushed away, and polluted water also can be diluted, and floatingleaved plant and emergent, the hydrodynamic(al) plant of sinking still can keep.
Major advantage of the present invention and effect:
Method of the present invention is short of rain for arid, water resources lacks, the riverbed width greater than one meter, the river degree of depth and He Po land level ratio greater than 1/2, slope, river and horizontal plane angle be greater than 120 degree, the gradient that nature is skewed and/or stepped, growth has vegetation or seminatural vegetation and industrial and agricultural wastewater is arranged and the river of sanitary sewage discharging and basin all suitable; The present invention saves the area owing to make full use of the space, river course, and construction investment is little, and is manageable, working cost seldom, the decontamination effect improving dissolved oxygen increases, BOD5, COD
Mn, COD
CrAll reduce, and the cytogenetic toxicity of weakening effect is arranged, reduce the fish kills rate, obviously reduce the concentration of copper in the water, lead, cadmium; The present invention rebuilds by embankment, and the riverbed is smooth, implements the engineering of " bio-based weir wetland oxidation pond ", can form the orderly biological green belt of artificial economy of rule, improves the ecological environment; Sedimentary mud can be used to plant the economic plants of well developed root system in the scavenging process, can also develop waterplant, herbivore and carnivore.In sum, the present invention makes full use of river course spatial vegetation and seminatural vegetation, be " the self-purification system " of strengthening physical environment, become and to receive dirt, blowdown river course and be a natural sewage-farm, the base that has the Biological resources development and utilization simultaneously, be a kind ofly suit measures to local conditions, expensive little and meet the river wastewater intensified ecological self-cleaning method of " comprehensive utilization turns harm into good " principle.
Below in conjunction with description of drawings bio-based weir wetland oxidation pond structure.
Fig. 1 is a bio-based weir wetland oxidation pond structural representation;
Fig. 2 is a basic weir side-view synoptic diagram.
As shown in Figure 1, base of the present invention weir wetland oxidation pond is made of some grades of basic weirs, every grade of Ji Yan has successively: the precipitation ditch 6 of view aeration, sprinkling irrigation aeration section 3, wetland oxidation pond 4, basic weir 5 and 5 front and back, basic weir, 1 is the riverbed among the figure, 2 overflow dams of building for the gateway in riverbed.
Found out by Fig. 2, the hard materials such as base weir 5 front and rear walls, 9 usefulness masonries, cement are built by laying bricks or stones, and with many reinforcing bars 10 with its reinforcing, then the earth before and after the basic weir is dug out and insert the space between the front and rear wall 9 and tamp, base forms smooth wetland oxidation pond 4 before the weir, precipitation ditch 6 before and after the base weir is the antiseep ditches that become one fixed width and the degree of depth with masonry, cement masonry.
Further set forth characteristics of the present invention below by example.
Embodiment
This example carries out in Fig. 3 simulator (synoptic diagram).Experiment divides two groups of I, II, and the sewage of experiment usefulness is taken from river, the Huanshui River Cao horse section water sample.
Experimentation and condition: the drop of river gradient is just simulated in the position of experiment cylinder, flows automatically in the next stage experiment cylinder, waits the settling cylinder body (I that enters belt stirrer
3, II
3) interior after waterplant absorption diafiltration is overflowed, by the airtight suction water storage bottle of negative pressure, be dropped into the first step naturally with speed then and test cylinder (I
1, II
1) in; Carry out rayed with fluorescent lamp by natural Light To Dark Ratio condition during experiment; In the II group diafiltration of PFU (polyurethane foamed blocks) A two-stage is arranged, its effect is to allow wherein miniature organism that the living space of a decomposing pollutant matter is arranged; Deposition cylinder (I
3, II
3) in plant and to be implanted with waterplant of the same race, every group of experiment cylinder cultured the small-sized fish (peacock fish) of equivalent amount, feeds with the water flea of river, the Huanshui River polluted waters, observes pollutent and will produce what effect after the aquatic food chain effect.Experimental result is seen attached list.
Find out that DO has increased 5.83mg/l, BOD5, COD by subordinate list II group (PFU) data
Mn, COD
CrReduce by 75.1%, 72.8%, 29.4% respectively; The concentration of Cu, Pb, Cd and the mortality ratio of fish obviously descend; PFU decomposes settling and more is of value to the plant absorbing utilization; The cytogenetic toxicity effect obviously weakens.
Subordinate list
| The index classification | Project | The sewage contrast | The experiment of PFU sewage | Analytical procedure | ||
| Initial value | The purification value | Initial value | The purification value | |||
| Overall target (mg/l) | DO BOD5 CODmn CODcr | 0.00 20.28 40.37 97.72 | 1.35 9.50 12.89 67.24 | 0.00 20.28 40.37 97.72 | 5.83 5.05 10.98 68.96 | GB7489-87 GB7488-87 GB11892-89 GB11914-89 |
| The long-pending thing (PPb) that belongs to of heavy turmeric | Cu Pb Cd | 28.32 5.40 0.37 | 13.21 1.97 do not detect | Polarography polarography polarography | ||
| Biological indicator | Plant length (cm) | 30 | 114 | Method of masurement | ||
| Cell micronucleus rate (‰) | 24.15 (P＜0.05) | 21.6 (P＞0.05) | " environmental monitoring technology standard " biological monitoring (water surrounding part) | |||
| Chromosome aberrations rate (%) | 15.11 (P＜0.01) | 20.18 (P＜0.01) | The environmental monitoring technology standard " biological monitoring (water surrounding part) | |||
| Fish kills rate (%) | 46.6 | 29.3 | Biostatistics | |||
Claims (8)
1. intensified ecological sewage decontaminating method for rivers, channels and ditches, it is characterized in that " bio-based weir wetland oxidation pond " that the river ditch polluted water constitutes through multistage Ji Yan, every grade of Ji Yan is made up of the precipitation ditch before and after the biological vegetation of levee slope or diafiltration material, view aeration, sprinkling irrigation aeration, wetland, Ji Yan and the basic weir, and the horizontal plane between the two-stage base weir is positioned at the 1/2-2/3 place of upper level base height of weir degree and the top of the Ji Yan of subordinate.
2. in accordance with the method for claim 1, it is characterized in that basic height of weir degree 0.5-1.0 rice, 1.5 meters of width, its height is a principle not influence flood carrying capacity.
3. in accordance with the method for claim 1, it is characterized in that making riverbed wetland oxidation pond to maintain the dark interval, waters of 0.5-1.0 rice.
4. in accordance with the method for claim 1, it is characterized in that in the bottom of basic weir front and rear wall building up 0.5 meter of the degree of depth, width with masonry, cement is 1 meter precipitation ditch.
5. in accordance with the method for claim 1, it is characterized in that distance between the described two basic weirs should be able to form gradient with 0.5-1 ‰ and broad stable smooth wetland oxidation pond cross flow and not influence the flood discharge function.
6. in accordance with the method for claim 1, it is characterized in that in the end that its water surface is no more than 2/3 of previous stage Ji Yan after the one-level Ji Yan highly has two-three grades of rubber dams.
7. in accordance with the method for claim 1, it is characterized in that sewage, mud sprinkling irrigation water and the settling of every grade of basic weir wetland oxidation pond can be drawn on the levee slope at the same level,, purify diafiltration for the plant absorbing utilization.
8. in accordance with the method for claim 1, it is characterized in that the sewage sprinkling irrigation aeration of every grade of basic weir wetland oxidation pond and the view aeration water yield equal the flooding quantity with one-level base weir wetland oxidation pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102839A CN1102129C (en) | 1998-07-10 | 1998-07-10 | Intensified ecological sewage decontaminating method for rivers, channels and ditches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102839A CN1102129C (en) | 1998-07-10 | 1998-07-10 | Intensified ecological sewage decontaminating method for rivers, channels and ditches |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1241538A CN1241538A (en) | 2000-01-19 |
| CN1102129C true CN1102129C (en) | 2003-02-26 |
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ID=5217603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98102839A Expired - Fee Related CN1102129C (en) | 1998-07-10 | 1998-07-10 | Intensified ecological sewage decontaminating method for rivers, channels and ditches |
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| CN (1) | CN1102129C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398464C (en) * | 2007-07-13 | 2008-07-02 | 北京市水利科学研究所 | Composite surface-flow land wetting system |
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| CN1300019C (en) * | 2004-04-05 | 2007-02-14 | 甄建伟 | River way type sewage treatment system |
| CN100436345C (en) * | 2006-11-09 | 2008-11-26 | 武汉理工大学 | Wastewater treatment method of pyramid type artificial swamp |
| CN100436350C (en) * | 2006-11-15 | 2008-11-26 | 中国科学院南京土壤研究所 | Agricultural ecological canal-artificial wet land water quality improvement and ecological system reconstruction method |
| CN100434371C (en) * | 2006-11-15 | 2008-11-19 | 中国科学院南京土壤研究所 | Ecological method for purifying trench sewage |
| CN100513326C (en) * | 2006-12-26 | 2009-07-15 | 封华强 | domestic sewage ecological treatment device |
| KR101049410B1 (en) * | 2009-12-15 | 2011-07-14 | 신강하이텍(주) | Appeal Purification and Aquatic Environment Restoration Method |
| CN101786729A (en) * | 2010-03-23 | 2010-07-28 | 南昌大学 | Water distribution-water fall reoxygenation system of surface flow artificial wetland |
| CN102234995B (en) * | 2010-09-27 | 2014-03-19 | 华北电力大学 | Ecological overtopping dam and construction method thereof |
| CN102107990A (en) * | 2010-12-28 | 2011-06-29 | 中国科学院南京地理与湖泊研究所 | Stepped riverine wetland water purification method |
| CN103319050B (en) * | 2013-07-04 | 2014-09-10 | 李敬生 | Ecological safety purifying method for sewage of rivers and channels |
| CN105130090A (en) * | 2014-06-09 | 2015-12-09 | 蒋寿悟 | River ditch sewage ecological strengthening self cleaning method |
| CN106149618A (en) * | 2015-03-30 | 2016-11-23 | 成益民 | Processing tecchnics is gushed in river |
| CN108249582B (en) * | 2018-03-27 | 2023-12-01 | 宁波伊玛环境科技股份有限公司 | Urban comprehensive sewage treatment system |
-
1998
- 1998-07-10 CN CN98102839A patent/CN1102129C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398464C (en) * | 2007-07-13 | 2008-07-02 | 北京市水利科学研究所 | Composite surface-flow land wetting system |
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| Publication number | Publication date |
|---|---|
| CN1241538A (en) | 2000-01-19 |
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Granted publication date: 20030226 Termination date: 20120710 |