CN106315987A - Multistage-strengthened water-self-purification and water-power-regulation-and-control water purification process and system - Google Patents
Multistage-strengthened water-self-purification and water-power-regulation-and-control water purification process and system Download PDFInfo
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- CN106315987A CN106315987A CN201610878815.9A CN201610878815A CN106315987A CN 106315987 A CN106315987 A CN 106315987A CN 201610878815 A CN201610878815 A CN 201610878815A CN 106315987 A CN106315987 A CN 106315987A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 166
- 238000000746 purification Methods 0.000 title claims abstract description 30
- 238000005189 flocculation Methods 0.000 claims abstract description 36
- 230000016615 flocculation Effects 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000005273 aeration Methods 0.000 claims abstract description 11
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 4
- 241000196324 Embryophyta Species 0.000 claims description 31
- 238000001556 precipitation Methods 0.000 claims description 30
- 239000008394 flocculating agent Substances 0.000 claims description 26
- 238000005086 pumping Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000005728 strengthening Methods 0.000 claims description 12
- 230000001376 precipitating effect Effects 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 5
- 159000000013 aluminium salts Chemical class 0.000 claims description 4
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 229920000592 inorganic polymer Polymers 0.000 claims description 4
- 244000205574 Acorus calamus Species 0.000 claims description 3
- 235000011996 Calamus deerratus Nutrition 0.000 claims description 3
- 241000684239 Canna x generalis Species 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 150000002505 iron Chemical class 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 241000217776 Holocentridae Species 0.000 claims 1
- 239000000701 coagulant Substances 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000000750 progressive effect Effects 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000012549 training Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 108091006146 Channels Proteins 0.000 description 1
- 235000011158 Prunus mume Nutrition 0.000 description 1
- 244000018795 Prunus mume Species 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000020535 bottled fortified water Nutrition 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
-
- 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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a multistage-strengthened water-self-purification and water-power-regulation-and-control water purification process. The process comprises the steps: (1) adding an aluminum-salt or iron-salt inorganic macromolecular coagulant before a primer pump according to the dosage of 5ppm to 30ppm; (2) adding a polyacrylamide coagulant aid to a flocculation reacting section according to the dosage of 0.01ppm to 0.1ppm, mounting a perforated pipe to the bottom of an absorption basin area, and carrying out aeration; (3) planting amphibious plants along the bank of a settling river reach; (4) arranging an ecological overflowing gate at the tail end of a settling dam so as to control the water retention time of a settling dam section to 90 to 120 minutes, control the flow velocity to be lower than 0.1m/s and control the water level difference with a downstream riverway to 30cm to 50cm; (5) arranging a downstream regulating lock in the downstream riverway so as to control water flow velocity and form progressive water head; (6) arranging a regulating lock for each branch when the downstream riverway has a plurality of branches. The invention further relates to a special system for the process. By adopting the process and the system, provided by the invention, on the basis of not affecting hydraulic engineering facilities and riverway draining function, water of diverted water is purified in a remarkable-effect and low-cost manner, and the self-purification capacity of the riverway water is improved.
Description
Technical field
The purification of water quality that the present invention relates to a kind of multistage strengthening self-purification of water and waterpower regulation and control processes technique.The present invention also relates to
And it is exclusively used in a kind of multistage strengthening self-purification of water and the system for purifying and treating water quality of waterpower regulation and control of described technique.
Background technology
In Plain River Network Areas, city stream gradient is little, for river training water body flow, increases urban river water dynamic conditions,
Mainly carry out water distribution regulation and control by the built Energy Saving Measures of Pumping Station that draws in regional extent, and then accelerate the network of waterways water body in this regional extent
Circulation rate, improves water body self-purification ability, improves network of waterways water environment, builds city river view and the life cycle of harmony
Border.
As a example by inhabitants in Xiaoshan, present situation is mainly by pebble mountain water diversion project, along the river drainage and irrigation station and Qianjiang hinge
Deng the bank of Qiangtang River each water diversion project pumping plant by river course in Qiantang River water introducing city, thus improve network of waterways water environment.At present, desolate
Mountain area year, water diversion was at 900,000,000 m3Left and right.According to the outstanding husky statistics of power station, Fuchunjiang River actual measurement, upstream, Qiantang River mean sediment concentration is about
0.2kg/m3, downstream area mean sediment concentration 0.4～2.0kg/m3, particularly prunus mume (sieb.) sieb.et zucc. sedimentary loading in flood season accounts for the 50～70% of the whole year.Money
Outside river, the pool, river water quality silt content is big, turbidity is high, water transparency is low, is introduced directly into interior river network and can cause inland river, interior river network
The severe siltation in road, water quality can not meet the requirement of River Landscape water body simultaneously.
Conventional purification of water quality processes and known purification processing facility is mainly at the structures closed or small-sized dress
Process in putting, homogenizing of the water yield and water quality can be realized by building structures or device.But, in Plain River Network Areas
In, for ensureing downstream, river course water demand, in hydraulic engineering, the diversion facility diversion water yield is big and diversion water quality is complicated and changeable.Such as Hangzhoupro
Qianjiang, state city hinge water diversion flow is designed as 20m3/ s, every day theory water diversion about 1,730,000 m3/s；Outside the Qiantang River, river is owing to being subject to
The impact of tidal water, reaches 2000NTU, about 50NTU time minimum during turbidity maximum, water quality changes the most greatly.In existing diversion
In the water engineering facilities such as pumping plant, it is difficult to have the structures of one homogeneity of spatial construction to be uniformly processed, build especially
The most economical.Therefore, in Plain River Network Areas, how to combine water engineering facility and the rivers, city such as existing diversion pumping plant
Road, on the basis of not affecting function of controlling flood and draining flooded fields, fully takes into account the feature that the diversion water yield is big, change of water quality is big, it is achieved draw
The purified treatment of water water quality is a difficult point.
Summary of the invention
First technical problem to be solved by this invention, it is simply that propose a kind of multistage strengthening self-purification of water and waterpower regulation and control
Purification of water quality process technique.
Second technical problem to be solved by this invention, it is simply that propose a kind of multistage fortified water being exclusively used in above-mentioned technique
Body self-cleaning and the system for purifying and treating water quality of waterpower regulation and control.
Use technique and the system of the present invention, water conservancy can not affected in conjunction with water engineering facilities such as existing diversion pumping plants
On the basis of job facilities water drainage function, effect purifies diversion water quality significantly, inexpensively, and improves the self-cleaning of river water body
Ability.
Solving above-mentioned first technical problem, the present invention adopts the following technical scheme that.
The purification of water quality of a kind of multistage strengthening self-purification of water and waterpower regulation and control processes technique, it is characterized in that including following step
Rapid:
1) adding flocculating agent before primer pump in proportion, described flocculating agent is that aluminium salt class or iron salt class inorganic polymer coagulate
Poly-agent, flocculating agent dosage is 5～30ppm；In primer pump porch, by the high-speed rotation of primer pump self impeller, it is achieved
The Quick uniform mixing of flocculating agent and water body；
2) water body through primer pump out after, enter flocculation reaction section, be proportionally added into helping solidifying by the way of multi-point adding
Agent, flocculation aid is polyacrylamide, and dosage is 0.01～0.1ppm；The stiling basin district of the primer pump outlet of flocculation reaction section
Perforated pipe is installed bottom territory, carries out blast aeration；
3) precipitation section bank plants amphibious plant: Canna generalis Bailey, again power flower, Rhizoma Alismatis, Herba Typhae, calamus, Herba Lythri Salicariae and
Medulla Junci emergent aquactic plant；
4) the ecological of different opening can be realized in precipitation Yong Shui section setting and cross stream lock, running is carried out with water diversion flow
Synchronization modulation；Making precipitation Yong Shui section hydraulic detention time control at 90min～120min, flow velocity is less than 0.1m/s, and and downstream
River water level difference 30～50cm, gate top is crossed and is arranged one's water breaks device at stream；
5) downstream river course is provided with downstream check gate control water volume flow rate, forms multi-level water potential difference, it is ensured that flow velocity is more than 0.1m/
s；
6) when downstream river course has a plurality of distributary, each bar is controlled by the aperture adjusting the throttling lock in each tributary
The distribution ratio of liquid flow in tributary, controls the flow velocity in each tributary of downstream river course, forms water-head, it is ensured that flow velocity is more than 0.1m/s, it is achieved
The hydrodynamic(al) improvement of terms in all river courses.
Described precipitation Yong Shui end sluice is when normal diversion purified treatment, and Yong Shui holded up by ecological stream lock of crossing, and forms water
Water-head before and after lock；During flood discharge, horizontal gate is carried out draining flooded fields water.Ecological stream lock of crossing can realize different opening control Yong Shuishui
Position, carries out synchronization modulation with water diversion flow in running.Lock top is crossed and is arranged one's water breaks device at stream, forms substantial amounts of microporous bubble,
Improve the dissolved oxygen content in water body, improve the ecological environment of river water body.
Solving above-mentioned second technical problem, the present invention is by the following technical solutions.
A kind of multistage strengthening self-purification of water being exclusively used in above-mentioned technique and the system for purifying and treating water quality of waterpower regulation and control, described
System be applicable to diversion pumping plant water engineering facility and city river, its clean water treatment region includes drawing along being provided with even successively
The diversion section of pump intake, comprise the flocculation reaction section of pumping plant stiling basin section, precipitation Yong Shuiduan, precipitation end ecology sluice shape
The ecological reoxygenation section become and downstream river course section；It is characterized in that: described system includes:
Waterpower coagulation system, is made up of flocculating agent storage system 1 and dosing system 2, and dosing system 2 is by storage system
Flocculating agent pump is to primer pump water inlet 3；
Aeration reinforcing flocculation system, prepares 5 and dosing system 6 including flocculation aid, by flocculation aid dosing system 6 with multiple spot
The mode added adds to pumping plant stiling basin water inlet side 7；Also include being arranged in many following currents bottom flocculation reaction section and
Parallel perforated pipe, uses the stainless steel tube of de100～400 by a supervisor from the middle each tube having holes of lateral connection, supervisor,
Perforated pipe uses the UPVC pipe of DN50～250, and the both sides of perforated pipe Center Symmetry Plane are opened from the downward 45 degree of position walls in the center of circle
Hole, aperture is 4～8mm；
Unpowered ecological reoxygenation system include overbank ground ecosystem that the water plant of precipitating phase river course bank formed with
The ecological of precipitation end crosses stream lock；
Downstream river course waterpower regulator control system includes the check gate that each river course, downstream is arranged.
Innovation of the present invention is: 1) combines diversion pumping plant job facilities layout, does not affect the merit of controlling flood and draining flooded fields of pumping plant
Energy；2) adding position and adding ratio of flocculating agent and flocculation aid is optimized, it is achieved add effect optimality and process economy；3)
Due to the important aquaporin of crossing when stiling basin is pumping plant water drainage, dependence mechanical agitation or conventional flap facility maintain flocculation reaction
Required velocity gradient can affect discharge capacity when draining flooded fields flood season, and when flood season drains flooded fields, water volume flow rate is big, also easily to machine
Tool or flap facility cause a devastating effect.In consideration of it, the present invention exposes by arranging perforated pipe bottom diversion pumping plant stiling basin
Gas facility, on the basis of not affecting water drainage function, in increase stiling basin, the turbulence level of water body, increases the collider of granule
Meeting, improves flocculating effect；4) ecology is set at downstream river course precipitation end and crosses stream lock, it is achieved the Yong Shui of precipitating phase, slow down water body
Flow velocity, coagulated particles thing is effectively settled, it is achieved reduces turbidity, improve water transparency, goes the purpose of dephosphorization simultaneously.?
In the case of conditions permit, the precipitating phase of section can also form the overbank ground of land and water handing-over, by planting enduring of amphibious property
Water plant, is effectively improved the bio-diversity in river course.Meanwhile, ingenious combination ecology crosses drop and the lock top that stream lock is formed
A large amount of microporous bubbles that one's water breaks device is formed, in the case of being not required to newly-increased power, improve the dissolved oxygen content in river water body,
Improve urban river water ecological environment；5) the ecological aperture crossing stream lock carries out real-time monitoring according to water diversion flow, can realize difference and draw
During discharge, control river course Yong Shui section at different water levels, it is ensured that sedimentation effect；6) ecological stream lock downstream river course water quality excessively can
Form multi-level water potential difference, river training water body hydrodynamic conditions by the pattern arranging check gate, increase the stream of river water body
Dynamic property, improves the self-purification capacity of water body.
The useful achievement of the present invention: 1) can effectively reduce the turbidity in water body and total phosphorus content, significantly improve the saturating of water body
Lightness and dissolved oxygen content, hence it is evident that the ecological environment of river training water body, improve the self-purification capacity of river water body, and ecological environment is imitated
Benefit is notable；2) can be prevented effectively from the Sediment Siltation of downstream river course after purified treatment, saving is huge because of downstream river course desilting generation
Engineering cost, remarkable in economical benefits.
Accompanying drawing explanation
Fig. 1 is that processing system is applicable to the precipitation section, the downstream schematic diagram without shunting；
Fig. 2 is that processing system is applicable to precipitation section, downstream and has the schematic diagram of shunting；
Fig. 3 is perforated pipe perforate mode elevational schematic view；
Fig. 4 is perforated pipe cross-sectional schematic；
Fig. 5 is turbidity situation of change before and after purified treatment；
Fig. 6 is total phosphorus situation of change before and after purified treatment；
Fig. 7 is DO situation of change before and after purified treatment；
Fig. 8 is transparency change situation before and after purified treatment.
1.-flocculating agent storage system in figure；2.-flocculating agent dosing system；3.-primer pump water inlet；4.-primer pump machine
Group；5. flocculation aid preparation system；6. flocculation aid dosing system；7. flocculation aid multi-point adding；8. blast aeration facility；9. aeration is worn
Kong Guan；10. precipitation harmony aqua region；Ecology crosses stream lock；Ecological natural reaeration region；Downstream river course；Downstream river course check gate.
Detailed description of the invention
Seeing Fig. 1 and Fig. 2, the purification of water quality of the multistage strengthening self-purification of water of the present invention and waterpower regulation and control processes technique, its
Feature is to comprise the following steps:
1) analyze raw water quality situation of change, find raw water quality Changing Pattern, for improving the economy of purified treatment, keep away
Open the time period of the most unfavorable diversion, as by flood tide or the period of other meeting extreme influence water water quality；Arrange clean as far as possible
The time period that change processes: diversion water turbidity is less than 500NTU, salinity is less than 250ppm.If entering when turbidity is more than 500NTU
Row diversion, processing cost can be higher.If salinity is more than 250ppm, it is considered to downstream river course ecosystem, it is not recommended that carry out diversion.
2) adding flocculating agent before primer pump in proportion, described flocculating agent is that aluminium salt class or iron salt class inorganic polymer coagulate
Poly-agent, flocculating agent dosage is 5～30ppm.In primer pump porch, by the high-speed rotation of primer pump self impeller, it is achieved
The Quick uniform mixing of flocculating agent and water body.
3) water body through primer pump out after, enter pumping plant stiling basin carry out flocculation reaction, press by the way of multi-point adding
Ratio adds flocculation aid.Flocculation aid is polyacrylamide, and dosage is 0.01～0.1ppm.For strengthening the turbulence level of water body,
Improving the flocculating effect of water body, the stiling basin sections bottom at primer pump outlet is installed perforated pipe and is carried out aeration, passes through air blast
Aerator aeration, it is achieved the turbulent effect of current in stiling basin, it is ensured that in stiling basin, water body reaches enough turbulence level, maintains
Velocity gradient needed for flocculation reaction, increases the collision opportunity of floc particle.The most also it is avoided that owing to regional area flow velocity delays
Slowly the settling of floccus caused and then impact water drainage.Due to the increase of oxygen content in water body, the enforcement of aeration additionally aids in water body
The removal of polluter.
4) water outlet of diversion pumping plant stiling basin enters downstream river course, crosses stream lock by arranging ecology at interior channel precipitation end,
Realize the Yong Shui of precipitating phase.Precipitation section bank plants amphibious plant, as Canna generalis Bailey, again power flower, Rhizoma Alismatis, Herba Typhae, calamus,
The emergent aquactic plant such as Herba Lythri Salicariae and Medulla Junci, forms the overbank ground of rich biodiversity, can lead to further during diversion purified treatment
Cross and adsorb, filter or retain, reduce the pollutant in water body.
5) for ensureing the granule sedimentation effect of precipitating phase, precipitation Yong Shui section flow velocity less than 0.1m/s, and with downstream river course water
Phase difference 30～50cm, the water-head formed by sluice creates the environment of drop reoxygenation.Gate top is crossed and is arranged one's water breaks device at stream,
Made flowing water body produces substantial amounts of microporous bubble, and be not required to newly-increased power, improve the dissolved oxygen content in river water body, greatly
Improve river water body ecological environment.
6) downstream river course water volume flow rate passes through downstream water gate control, forms multi-level water potential difference, and ensures that flow velocity is more than 0.1m/
S, promotes the self-purification capacity of river water body by improving hydrodynamic conditions.
7) when downstream river course has a plurality of distributary, each bar is controlled by the aperture adjusting the throttling lock in each tributary
The distribution ratio of liquid flow in tributary, controls the flow velocity in each tributary of downstream river course, forms water-head, it is ensured that flow velocity is more than 0.1m/s, it is achieved
The hydrodynamic(al) improvement of terms in all river courses.
Being exclusively used in the multistage strengthening self-purification of water and the system for purifying and treating water quality of waterpower regulation and control of above-mentioned technique, described is
System is applicable to diversion pumping plant water engineering facility and city river, and purified treatment region includes entering along the primer pump that is provided with even successively
The ecological natural reaeration region that the diversion section at the mouth of a river, pumping plant stiling basin section (flocculation reaction section), precipitation Yong Shuiduan, precipitation end sluice are formed
Section and downstream river course section；It is characterized in that: described system includes:
Waterpower coagulation system, is made up of flocculating agent storage system 1 and dosing system 2, by dosing system 2 by storage system
In flocculating agent add to primer pump water inlet 3.
Aeration reinforcing flocculation system, including flocculation aid preparation system 5 and dosing system 6, by flocculation aid dosing system 6 with
The mode of multi-point adding adds to pumping plant stiling basin water inlet side 7；Many following currents also including being arranged in flocculation reaction section and
Parallel perforated pipe, uses the stainless steel tube of de100～400 by a supervisor from the middle each tube having holes of lateral connection, supervisor,
Perforated pipe uses the UPVC pipe of DN50～250, and the both sides of perforated pipe Center Symmetry Plane are opened from the downward 45 degree of position walls in the center of circle
Hole, aperture is 4～8mm.
Unpowered ecological reoxygenation system includes that the overbank ground ecosystem that the water plant of precipitating phase river course bank is formed sets
Put and cross, at the ecological of precipitation end, the reoxygenation water body section that stream lock 11 is formed.When normal diversion purified treatment, ecological mistake
Yong Shui holded up by stream lock, forms water-head before and after sluice；During flood discharge, horizontal gate is carried out draining flooded fields water.Ecological stream lock of crossing can realize
Different opening controls Yong Shui water level, carries out synchronization modulation with water diversion flow in running.Lock top is crossed and is arranged one's water breaks device, shape at stream
Become substantial amounts of microporous bubble, improve the dissolved oxygen content in water body, improve the ecological environment of river water body.
Downstream river course waterpower regulator control system includes downstream river course and the check gate in each tributary.Under being controlled by downstream check gate
Swim the water level in each river course, form multi-level water potential difference, and ensure that flow velocity, more than 0.1m/s, promotes by improving hydrodynamic conditions
The self-purification capacity of river water body.
Concrete application examples
Engineering construction case is carried out at Qianjiang, inhabitants in Xiaoshan hinge.Qianjiang hinge has two primer pumps, separate unit diversion
Pump water diversion flow 10m3/s.During engineering construction, flocculating agent adds in primer pump porch, realizes during entering primer pump
Outside flocculating agent and the Qiantang River, river is sufficiently mixed.Flocculating agent adds as aluminium salt class inorganic polymer flocculating agent, dosage according to
The water quality situation of Qiantang River Wai Jiang is adjusted, dosage 5～30ppm.Then, in stiling basin by the way of multi-point adding
Adding flocculation aid, dosage is 0.01～0.1ppm, creates enough turbulent effects by perforated pipe aerating regulation in stiling basin, maintains
Velocity gradient needed for flocculation.Finally, liberate section, local, river after utilizing downstream river course and complete precipitation process, rear liberation river precipitation
Section length 500m.
Rear liberation river precipitation end is built ecology and is crossed flowing water lock, sluice totally 3 hole, clear span 36m, maximum lock flow 110m3/
S, under employing, horizontal ecology crosses stream gate.Cross stream lock by precipitation end ecology and regulate control precipitation Yong Shui section water level 4.8m,
After lock, river water level controls to keep 50cm water-head before and after 4.3m, sluice by the check gate in downstream, creates drop reoxygenation
Environment.Meanwhile, the one's water breaks device that sluice top is arranged forms substantial amounts of microporous bubble, improves the dissolved oxygen content of water body.Warp
After crossing purified treatment, going out water clarity more than 1m at precipitation end sluice, turbidity removal rate is more than 90%, and the clearance of total phosphorus surpasses
Crossing 80%, Dissolved Oxygen in Water content significantly improves.Each check gate coutroi velocity and water level, urban river water are passed through in each tributary of downstream river course
Dynamic conditions is substantially improved, and water quality can be kept for a long time.
Claims (3)
1. the purification of water quality of the multistage strengthening self-purification of water and waterpower regulation and control processes a technique, it is characterized in that comprising the following steps:
1) adding flocculating agent before primer pump in proportion, described flocculating agent is aluminium salt class or the cohesion of iron salt class inorganic polymer
Agent, flocculating agent dosage is 5～30ppm；
2) water body through primer pump out after, enter flocculation reaction section, by the way of multi-point adding, add flocculation aid, flocculation aid is
Polyacrylamide, dosage is 0.01～0.1ppm；The stiling basin sections bottom of the primer pump outlet of flocculation reaction section is installed
Perforated pipe, carries out blast aeration；
3) the precipitation section bank amphibious plant of plantation: Canna generalis Bailey, again power flower, Rhizoma Alismatis, Herba Typhae, calamus, Herba Lythri Salicariae and lampwick
Grass emergent aquactic plant；
4) the ecological stream lock of crossing of different opening can be realized in precipitation Yong Shui section end setting, Tong Bu with water diversion flow in running
Regulation and control, make precipitation Yong Shui section hydraulic detention time control at 90min～120min, and flow velocity is less than 0.1m/s, and and downstream river course
Water level difference 30～50cm, gate top is crossed and is arranged one's water breaks device at stream；
5) downstream river course is provided with downstream check gate control water volume flow rate, forms multi-level water potential difference, it is ensured that flow velocity is more than 0.1m/s；
6) when downstream river course has a plurality of distributary, each bar tributary is controlled by the aperture adjusting the throttling lock in each tributary
Distribution ratio of liquid flow, control the flow velocity in each tributary of downstream river course, form water-head, it is ensured that flow velocity is more than 0.1m/s, it is achieved all
The hydrodynamic(al) improvement of terms in river course.
The purification of water quality of the multistage strengthening self-purification of water the most according to claim 1 and waterpower regulation and control processes technique, its feature
It is: Yong Shui holded up by described precipitation Yong Shui section end sluice when normal diversion purified treatment, forms water-head before and after sluice；Let out
Hong Shi, horizontal gate is carried out draining flooded fields water.
3. the water quality of the multistage strengthening self-purification of water being exclusively used in technique as claimed in claim 1 or 2 and waterpower regulation and control is clean
Changing processing system, described system is applicable to diversion pumping plant water engineering facility and city river, its purified treatment district being suitable for
Territory includes successively along the diversion section being provided with primer pump water inlet even, the flocculation reaction section comprising pumping plant stiling basin section, precipitation harmony
Water section (10), precipitation Yong Shui section end ecology sluice (11) the ecological reoxygenation section (12) that formed and downstream river course section (13)；Its
Feature is: described system includes:
Waterpower coagulation system, is made up of flocculating agent storage system (1) and flocculating agent dosing system (2), and dosing system is by flocculating agent
Flocculating agent pump in storage system is to primer pump water inlet (3)；
Aeration reinforcing flocculation system, prepares (5) and flocculation aid dosing system (6) including flocculation aid, and flocculation aid is thrown by flocculation aid
Adding system adds to pumping plant stiling basin water inlet side (7) in the way of multi-point adding；Also include being arranged at the bottom of flocculation reaction section
The many following currents in portion and parallel perforated pipe (9), all perforated pipes are used from middle lateral connection, supervisor by a supervisor
The stainless steel tube of de100～400, perforated pipe uses the UPVC pipe of DN50～250, and the both sides of perforated pipe Center Symmetry Plane are from circle
Perforate on the downward 45 degree of position walls of the heart, aperture is 4～8mm；
Unpowered ecological reoxygenation system, including the overbank that the water plant of precipitating phase river course bank is formed ground ecosystem and precipitation
The ecological of Yong Shui end crosses stream lock；
Downstream river course waterpower regulator control system, the check gate (14) arranged including each river course, downstream.
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