CN103351084B - Multi-stage water quality eco-purification system suitable for shallow narrow mixed water river channel - Google Patents
Multi-stage water quality eco-purification system suitable for shallow narrow mixed water river channel Download PDFInfo
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- CN103351084B CN103351084B CN201310320203.4A CN201310320203A CN103351084B CN 103351084 B CN103351084 B CN 103351084B CN 201310320203 A CN201310320203 A CN 201310320203A CN 103351084 B CN103351084 B CN 103351084B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000000746 purification Methods 0.000 title claims abstract description 45
- 238000007667 floating Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 12
- 239000010881 fly ash Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 244000005700 microbiome Species 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 208000028804 PERCHING syndrome Diseases 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000003403 water pollutant Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 claims description 2
- 230000007483 microbial process Effects 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 238000005067 remediation Methods 0.000 abstract 4
- 239000011435 rock Substances 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 5
- 244000205574 Acorus calamus Species 0.000 description 3
- 235000011996 Calamus deerratus Nutrition 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a multi-stage water quality eco-purification system suitable for a shallow narrow mixed water river channel, which can effectively solve the problems of multi-stage water quality eco-purification and eco-remediation of the shallow narrow mixed water river channel. The system adopts a method comprising the following steps: arranging an overflow dam formed by building rocks in a main river channel; arranging a biological solid settling pool in front of the overflow dam, arranging a semi-submersible artificial ecologic filter bed and an in-situ remediation module combination unit behind the overflow dam and in a sheer river bed, arranging an ecologic floating bed and an ecologic foundation in the in-situ remediation module combination unit in sequence to form a multi-stage eco-purification unit, arranging and fixing a plurality of multi-stage eco-purification units in the river channel along the river channel to form the multi-stage water quality eco-purification system. The ecologic foundation can adsorb pollutants in water, and provides a dwelling site for microbes; the microbes dwelling on the ecologic foundation can further remove pollutants in water. The system is scientific and reasonable, is suitable for intensifying and purifying ecological engineering of the shallow narrow mixed water river channel, and has an important meaning in river pollution prevention and ecologic remediation.
Description
Technical field
The present invention relates to river control, be particularly a kind ofly applicable to the multistage water quality ecological purification system that shallow narrow type mixes water river course.
Background technology
River comprises river water body, riverbed and riverbank (dike), has the several functions such as flood regulation and control, removing pollutant, climatic regulation, landscaping.For many years, mankind's activity has destroyed natural form and the hydrophytic habitat of river system, causes degradation problem under the ability of the river self-purification decline, water pollution aggravation, species diversity.For a long time, experts and scholars purify with ecological reestablishment and have accumulated a large amount of practical experiences for water quality of river.At present, purifying polluted river water and ecological reestablishment are mainly divided into Physical, chemical method and the large class of biologic technology 3.Biologic technology, owing to contributing to the reparation of river ecological in enhancing river course self detergent power, the pollution of harnessing a river, is the one preferred technique of water quality of river purification and restoration of the ecosystem.
River, the northern area of China natural runoff is less or natural in runoff, what river water was mainly made up of the sanitary sewage of processing and trade effluent mixes water, have seriously polluted, river discharge is little, water flow section is narrow, and (partial rivers main stem width is less than 15m, and outside river course, both sides can not utilize soil) etc. feature, according to this feature in northern area river, be not easy to carry out river course showering technology, and adopt, various biologic technologies are organically combined, utilize artificial/semi-artificial river stage purification ecosystem of riverbed in-situ construction, in realizing purifying polluted river water, also can reach the object of repairing river ecosystem.Therefore, utilize riverbed in-situ construction to be applicable to the multistage water quality ecological purification system that shallow narrow type mixes water river course, significant for prevention and cure of pollution and the restoration of the ecosystem in river.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the present invention's object is just to provide a kind of multistage water quality ecological purification system that shallow narrow type mixes water river course that is applicable to, and can effectively solve shallow narrow type and mix the multistage water quality ecological purification in water river course and the problem of restoration of the ecosystem.
The technical scheme that the present invention solves is, in main stem, be provided with the overflow weir that stone is built by laying bricks or stones, before overflow weir, there is biology to fall Gu Chi, after overflow weir, in steep riverbed, be provided with semisubmersible artificial ecology filter bed and original position and repair module assembled unit, repair in position and in module assembled unit, be disposed with biological floating bed and ecological matrix, form a multi-stage ecological purification unit, multiple multi-stage ecological purifications unit is arranged and is fixed in river course along river course, forms multistage water quality ecological purification system, ecological matrix is for adsorbed water body part pollutent, simultaneously for microorganism provides habitat, the microorganism perching on ecological matrix is further removed the part pollutent in water, described semisubmersible artificial ecology filter bed is by the supreme different sorts of successively laying in the end in the steep riverbed in river course, present position, the hypothallus of different-grain diameter, described different sorts, the hypothallus of different-grain diameter is gravel, slag, building waste, coarse sand, flyash, iron filings and pedosphere, on pedosphere, planting aquatic plants is (as reed, calamus), in low water season and the period when a river is at its normal level, river falls Gu Chi from biology and falls through overflow weir, order is through the semisubmersible artificial ecology filter bed of difference in functionality section, and follow-up original position is repaired module assembled unit, water pollutant COD is removed in strengthening
cr, N and P, realize effects of purification quality, in the time of the wet season, river, after overflow weir, can cover in a short time semisubmersible artificial ecology filter bed top and enter follow-up original position reparation module assembled unit, and then in the time effectively protecting wetland, also not hinder river course flood.
The present invention is scientific and reasonable, is to be applicable to the shallow narrow strengthened purification ecological engineering that mixes water river course, significant for prevention and cure of pollution and the restoration of the ecosystem in river.
Brief description of the drawings
Fig. 1 is the structure iron of a multi-stage ecological purification unit of flow path direction along the river of the present invention.
Fig. 2 is the longitudinal profile view of a multi-stage ecological purification unit of flow path direction along the river of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Shown in Fig. 1,2, in main stem of the present invention, be provided with the overflow weir 2 that stone is built by laying bricks or stones, overflow weir 2 has biology to fall solid pond 1 above, overflow weir 2 is provided with semisubmersible artificial ecology filter bed 3 and original position below and repairs module assembled unit 4 in steep riverbed 7, repair in position and in module assembled unit, be disposed with biological floating bed 5 and ecological matrix 6, form a multi-stage ecological purification unit, multiple multi-stage ecological purifications unit is arranged and is fixed in river course along river course, forms multistage water quality ecological purification system, ecological matrix 6 is for adsorbed water body part pollutent, simultaneously for microorganism provides habitat, the microorganism perching on ecological matrix is further removed the part pollutent in water, described semisubmersible artificial ecology filter bed 3 is by the supreme different sorts of successively laying in the end in the steep riverbed 7 in river course, present position, the hypothallus of different-grain diameter, described different sorts, the hypothallus of different-grain diameter is gravel, slag, building waste, coarse sand, flyash, iron filings and pedosphere, on pedosphere, planting aquatic plants is (as reed, calamus) 8(is in the specific implementation, can be according to purification of water quality target contaminant difference, semisubmersible artificial ecology filter bed 3 can be divided into ecological filter bed section of the strong removal type of COD, ecological filter bed section of the strong removal type of ammonia nitrogen), in low water season and the period when a river is at its normal level, river falls Gu Chi from biology and falls through overflow weir, order is through the semisubmersible artificial ecology filter bed of difference in functionality section, and follow-up original position is repaired module assembled unit, water pollutant CODCr is removed in strengthening, N and P, realize effects of purification quality, in the time of the wet season, river, after overflow weir, can cover in a short time semisubmersible artificial ecology filter bed top and enter follow-up original position reparation module assembled unit, and then in the time effectively protecting wetland, also not hinder river course flood.
In order to ensure result of use, one or more (not shown) of emergent, submerged plant and floating plant kind are fallen solid pond 1 both sides kind and are implanted with in the biology before overflow weir, benefit suspended substance, silt etc. in interception, sedimentation water body;
Described overflow weir 2 weir crests are higher than ordinary water-level 15-20cm, and overflow weir total height is less than 60cm, when regulating and storing the water yield, also make river in falling process, carry out reoxygenation for shallow narrow river course, improve dissolved oxygen concentration;
Described semisubmersible artificial ecology filter bed 3 is by the supreme hypothallus of successively laying different sorts, different-grain diameter in the end in the riverbed 7 in river course, present position, by the supreme one deck composite interstitial substance bed course of successively laying in the end, thickness 3cm, composite interstitial substance bed course is formed by diameter 1 ~ 2cm gravel, building waste and clay particle assembly, gravel, building waste and clay particle volume ratio are 6:2:2, to prevent and treat and to delay river bottom mud secondary pollution; On composite interstitial substance bed course, be respectively from bottom to top: slag layer, thickness 5cm, particle diameter 3 ~ 5cm, iron filings/flyash and gravel mixing assembly layer, iron filings and flyash volume ratio are 1:3, volume ratio 1:6 ~ 10 of iron filings/flyash and gravel, thickness 10 ~ 15cm, iron filings particle diameter 0.5 ~ 1cm, grain size of gravel 3 ~ 5cm; Slag coarse sands layer, slag, coarse sand volume ratio are 1:1, thickness 5 ~ 8cm; Pedosphere, thickness 3cm, hypothallus total thickness is less than 40cm.
Described original position is repaired module assembled unit 4 at central zone, river course compartment kind planting submerged plant 9, plants respectively emergent and hygrophyte near both sides, riverbank, and the resistance to current between overflow stage is less, and river course flood discharge is not exerted an influence.
Planting aquatic plants 10 on described biological floating bed 5, by plant and the common purifying water body of microbial process (being attached on root system of plant).
Described ecological matrix 6 is in adsorbed water body when part particulate matter, and also for microorganism provides habitat, the microorganism being fixed on ecological matrix is further removed part pollutent in water body.
When described water plant planting, dispose landscape plant, when purification improves water quality, river training natural landscape.
The present invention has following useful technique effect:
(1) the river water body water yield of regulating and storing in overflow weir upstream, river can carry out reoxygenation by overflow weir, improves dissolved oxygen concentration;
(2) multi-stage ecological purification system is fallen Gu Chi by biology and is held back suspended substance, sedimentation silt;
(3) semisubmersible artificial bio-membrane's filter bed of multi-stage ecological purification system constructing, utilize steep riverbed by the supreme hypothalluses such as gravel, slag, physical chemistry strengthening adsorption stuffing, coarse sand, flyash, iron filings and soil, the planting aquatic plants on pedosphere (as reed, calamus etc.) of successively laying in the end.When wet season, river all enters follow-up original position and repairs module assembled unit after overflow weir from semisubmersible artificial bio-membrane filter bed top, original position is repaired module assembled unit at central zone, river course kind planting submerged plant, plant respectively emergent and hygrophyte near riverbank place, resistance to current between overflow stage is less, river course flood discharge is not exerted an influence, and then also do not hinder flood passage in the time effectively protecting wetland;
(4) semisubmersible artificial bio-membrane filter bed can be divided into several unit modules, according to the actual contaminated degree of river and purification needs, carries out multiple module combinations, in river course, interts and builds with original position reparation module assembled unit, and form is comparatively flexible;
(5) multi-stage ecological purification system, by set up biological floating bed and ecological matrix junior unit in river course, further to remove part pollutent in water body, is guaranteed clean dirty effect;
(6) multi-stage ecological purification system is arranged in pairs or groups and is planted landscape plant, river training natural landscape in the time that purification improves water quality in the time of planting aquatic plants;
(7) multi-stage ecological purification system, according to the specific geographic physical features situation in river course, by the use of connecting of each unit;
(8) the present invention does not need the energy consumption equipment such as lift pump, water purifying process link is by self-assembling formation, required fund input is relative with running cost less, and purification of water quality is combined with ecological reestablishment, building mode and management are simpler, running maintenance technical requirements is relatively low, is the innovation in river improvement.
Claims (5)
1. one kind is applicable to the multistage water quality ecological purification system that shallow narrow type mixes water river course, it is characterized in that, in main stem, be provided with the overflow weir (2) that stone is built by laying bricks or stones, overflow weir (2) has biology to fall Gu Chi (1) above, overflow weir (2) in steep riverbed (7), is provided with semisubmersible artificial ecology filter bed (3) below and original position is repaired module assembled unit (4), repair in position and in module assembled unit, be disposed with biological floating bed (5) and ecological matrix (6), form a multi-stage ecological purification unit, multiple multi-stage ecological purifications unit is arranged and is fixed in river course along river course, form multistage water quality ecological purification system, ecological matrix (6) is for adsorbed water body part pollutent, simultaneously for microorganism provides habitat, the microorganism perching on ecological matrix is further removed the part pollutent in water, described semisubmersible artificial ecology filter bed (3) is by the supreme different sorts of successively laying in the end in the steep riverbed (7) in river course, present position, the hypothallus of different-grain diameter, described different sorts, the hypothallus of different-grain diameter is gravel, slag, building waste, coarse sand, flyash, iron filings and pedosphere, planting aquatic plants on pedosphere (8), in low water season and the period when a river is at its normal level, river falls Gu Chi from biology and falls through overflow weir, order is through the semisubmersible artificial ecology filter bed of difference in functionality section, and follow-up original position is repaired module assembled unit, water pollutant CODCr is removed in strengthening, N and P, realize effects of purification quality, in the time of the wet season, river, after overflow weir, can cover in a short time semisubmersible artificial ecology filter bed top and enter follow-up original position reparation module assembled unit, and then in the time effectively protecting wetland, also not hinder river course flood,
Described semisubmersible artificial ecology filter bed (3) is by the supreme hypothallus of successively laying different sorts, different-grain diameter in the end in the steep riverbed (7) in river course, present position, by the supreme one deck composite interstitial substance bed course of successively laying in the end, thickness 3cm, composite interstitial substance bed course is formed by diameter 1 ~ 2cm gravel, building waste and clay particle assembly, gravel, building waste and clay particle volume ratio are 6:2:2, to prevent and treat and to delay river bottom mud secondary pollution; On composite interstitial substance bed course, be respectively from bottom to top: slag layer, thickness 5cm, particle diameter 3 ~ 5cm, iron filings/flyash and gravel mixing assembly layer, iron filings and flyash volume ratio are 1:3, volume ratio 1:6 ~ 10 of iron filings/flyash and gravel, thickness 10 ~ 15cm, iron filings particle diameter 0.5 ~ 1cm, grain size of gravel 3 ~ 5cm; Slag coarse sands layer, slag, coarse sand volume ratio are 1:1, thickness 5 ~ 8cm; Pedosphere, thickness 3cm, hypothallus total thickness is less than 40cm;
The upper kind in described biological floating bed (5) is implanted with waterplant, by plant and the common purifying water body of microbial process.
2. be according to claim 1ly applicable to the multistage water quality ecological purification system that shallow narrow type mixes water river course, it is characterized in that: the biology before overflow weir falls Gu Chi (1) both sides kind and is implanted with one or more in emergent, submerged plant and floating plant, benefits suspended substance, silt in interception, sedimentation water body.
3. be according to claim 1ly applicable to the multistage water quality ecological purification system that shallow narrow type mixes water river course, it is characterized in that: described overflow weir (2) weir crest is higher than ordinary water-level 15-20cm, overflow weir total height is less than 60 cm, when regulate and store the water yield for shallow narrow river course, also make river in falling process, carry out reoxygenation, improve dissolved oxygen concentration.
4. be according to claim 1ly applicable to the multistage water quality ecological purification system that shallow narrow type mixes water river course, it is characterized in that: it is at central zone, river course intermittent type kind planting submerged plant (9) that described original position is repaired module assembled unit (4), plant respectively emergent and hygrophyte near both sides, riverbank, resistance to current between overflow stage is less, and river course flood discharge is not exerted an influence.
5. be according to claim 1ly applicable to the multistage water quality ecological purification system that shallow narrow type mixes water river course, it is characterized in that: when described water plant planting, dispose landscape plant, when purification improves water quality, river training natural landscape.
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CN106477724A (en) * | 2015-08-28 | 2017-03-08 | 上海太和水环境科技发展有限公司 | A kind of ecological pretreatment system for being applied to river water body reparation |
CN107585873A (en) * | 2017-10-18 | 2018-01-16 | 安徽环境科技股份有限公司 | A kind of black-odor riverway water correction device |
CN110241781B (en) * | 2019-06-28 | 2021-05-04 | 李文杰 | Comprehensive treatment method for urban inland river ecology and embankment landscape |
CN110606570A (en) * | 2019-10-09 | 2019-12-24 | 贵州民族大学 | Ecological base combines river pollution treatment system of plant |
CN110723809A (en) * | 2019-11-07 | 2020-01-24 | 盛世生态环境股份有限公司 | Multistage treatment method suitable for river pollution in rural areas |
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CP02 | Change in the address of a patent holder | ||
CP02 | Change in the address of a patent holder |
Address after: 450001 Zhengzhou science and Technology Development Zone, Henan, No. 100 science Avenue Patentee after: Zhengzhou University Address before: 450001 science avenue of Zhengzhou high tech Development Zone, Zhengzhou, Henan Province, No. Patentee before: Zhengzhou University |