CN208594146U - Black and odorous river purification system based on permeable reactive barrier - Google Patents

Abstract

The utility model provides the black and odorous river purification system based on permeable reactive barrier.Black and odorous river purification system of the utility model based on permeable reactive barrier includes: settling system, permeable reactive barrier system and sludge dewatering system；The settling system is connected with permeable reactive barrier system and sludge dewatering system respectively；The settling system is an integral structure with permeable wall reaction system.The utility model black and odorous river purification system be it is a kind of integrate coagulating sedimentation, PRB system, sludge dewatering combined type purification device, the especially setting of settling system, it is able to solve the blockage problem of PRB system, and with the mutual coordinated of PRB system, it mutually promotes, so that the inaccessiable effect of triangular web is achieved.

Description

Black and odorous river purification system based on permeable reactive barrier

Technical field

The utility model relates to black and odorous rivers to administer field, in particular to the black smelly river based on permeable reactive barrier Flow purification system.

Background technique

City is given birth to according to water, emerging because of water, and the water quality condition in city river will have a direct impact on the living environment of people And quality of life.But since China's Urban Water Environment is seriously polluted, the water body in city river is mostly by organic pollutant and nitrogen, phosphorus Etc. contaminants, many city river organic contaminations in China are generally existing and become increasingly conspicuous, and the in line river of municipal sewage flows through Cities and towns section is seriously polluted, and water body appearance is seasonal or black throughout the year smelly, becomes in the current city river pollution problem in China urgently Water environmental problems to be solved.

Since publication in 2015 " ten, water ", the smelly river improvement of urban black is noticeable always.Ten requirements of water " are arrived The year two thousand twenty ground level and the above completed region of the city black and odorous water control within 10%, are disappeared to the year two thousand thirty city black and odorous water It removes."

Black and odorous river is a kind of extreme performance of water body organism pollution, it be due to water hypoxia, organic matter corruption and Caused by.When a large amount of organic pollutant enters river, under the biochemical action of aerobic microbiological, consume a large amount of in water body Oxygen makes water body be converted to anaerobic condition, causes anaerobic bacteria mass propagation, and organic matter corruption, decomposition, fermentation become water body Black, fouling.

Currently used administering method is exactly artificial aeration, Sediment Dredging and water transfer etc., but these methods have purification Period is long, and regulation effect is poor, substantially palliative, and control expense is relatively high, it is difficult to long-term lasting application.

Permeable reactive barrier technology (referred to as " PRB ") is that European and American developed countries generally study and started commercial applications One pollution remediation technology.China starts late to the research of PRB technology, at present also in the laboratory research stage.The technology It is mainly used for the prevention and treatment and reparation of underground water pollution, but deepening continuously with research and application, this technology is gradually applied to The reparation of earth's surface polluted-water, report that is domestic then yet there are no this respect.Since suspended matter is more in urban river, PRB technology It is easily blocked when applied to river improvement, causes to apply and be difficult.

In view of this, special propose the utility model.

Utility model content

The first of the utility model is designed to provide a kind of black and odorous river purification system based on permeable reactive barrier, institute The black and odorous river purification system stated has that process flow is short, operating cost is low, good to the adaptable of water quality, lasting effect etc. excellent Point, can overcome that purification cycle of the existing technology is long, defect of less effective, realize the healthy sustainable development of urban river Exhibition.

In order to realize the above-mentioned purpose of the utility model, the following technical scheme is adopted:

A kind of black and odorous river purification system based on permeable reactive barrier, the black and odorous river based on permeable reactive barrier Purification system includes:

Settling system, permeable reactive barrier system and sludge dewatering system；

Wherein, the settling system is connected with permeable reactive barrier system and sludge dewatering system respectively；

The settling system is an integral structure with permeable wall reaction system.

Preferably, in black and odorous river purification system described in the utility model, the settling system includes sedimentation basin；

Wherein, the lower part of sedimentation basin is provided with sludge hopper, and the sludge collected in sludge hopper is transported to sludge via sludge pipe Dewatering system.

Preferably, in black and odorous river purification system described in the utility model, the sedimentation basin is inclined-plate clarifying basin.

It preferably, further include for loading flocculant and/or helping in black and odorous river purification system described in the utility model The chemicals dosing plant of solidifying agent.

It preferably, further include coagulative precipitation tank in black and odorous river purification system described in the utility model, the coagulation is heavy Shallow lake pond is set to front of the settling system along water (flow) direction.

Preferably, in black and odorous river purification system described in the utility model, the permeable reactive barrier system includes: can Permeable reactive wall, integral type active material case and effluent trough.

Preferably, in black and odorous river purification system described in the utility model, the upstream face of the permeable reactive barrier and Back side is provided with permeable hole；Wherein, the diameter of the permeable hole is 1~10mm.

Preferably, in black and odorous river purification system described in the utility model, the integral type active material case meets water Face and back side are provided with thread gaps；Wherein, the width of the thread gaps is 0.1~1mm.

Preferably, in black and odorous river purification system described in the utility model, the top of the integral type active material case It is provided with hanging ring.

Preferably, in black and odorous river purification system described in the utility model, the sludge dewatering system includes sludge pump And dewaterer.

Compared with prior art, the utility model has the following beneficial effects:

Black and odorous river purification system provided by the utility model is a kind of to collect coagulating sedimentation, PRB system, sludge dewatering in one The combined type purification device of body, the especially setting of settling system, are able to solve the blockage problem of PRB system, and with PRB system It unites mutual coordinated, mutually promotes, so that the inaccessiable effect of triangular web is achieved.

Specifically, on the one hand, coagulating sedimentation system utilizes flocculant and the strong flocculation ability and sloping plate deposition of flocculation aid High-rate sedimentation function, by water body suspended particulate and the pollutants such as colloid be deposited to bottom so that into the dirt of PRB system Dye object is not easy to plug hole, after supernatant enters PRB system, utilizes the Inner electrolysis of iron filings in active material and the suction of other materials Attached effect will not sedimentable pollutant removal, final degree of water pollution is greatly reduced, and black and odorous water passes through 3~5 Become to clarify water body after system, periodically active material is detected, is replaced after failure.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described.

Fig. 1 is the flow chart of black and odorous water processing in specific embodiment of the present invention；

Fig. 2 is black and odorous river purification system structural schematic diagram in specific embodiment of the present invention；

Fig. 3 is black and odorous river purification system structure top view in specific embodiment of the present invention.

Wherein, 1- sloping plate deposition system, 2- permeable reactive barrier system；

110- inclined-plate clarifying basin, 111- intake chamber, 112- sludge hopper, 113- sludge pipe, 114- cover board；221- activity material Material, 230- effluent trough；310- dewaterer, 320- sludge box, 311- outlet pipe.

Specific embodiment

The embodiments of the present invention are described in detail below in conjunction with embodiment, but those skilled in the art It will be understood that the following example is merely to illustrate the utility model, and it is not construed as limitation the scope of the utility model.Embodiment In the person that is not specified actual conditions, carry out according to conventional conditions or manufacturer's recommended conditions.Life is not specified in agents useful for same or instrument Manufacturer person is produced, is the conventional products that can be obtained by commercially available purchase.

In view of shortcoming of the existing permeable reactive barrier technology in the presence of practical application of river improvement, this reality Provided a kind of novel black and odorous river purification system based on permeable reactive barrier with novel, by by permeable reactive barrier with Settling system is used in combination, and can be realized effective purification and processing for black and odorous water.

Specifically, the black and odorous river purification system provided by the utility model based on permeable reactive barrier, comprising: precipitating System, permeable reactive barrier system and sludge dewatering system；

Wherein, settling system and permeable reactive barrier system are integral type package system, and settling system is set to along water flow The front in direction, permeable reactive barrier system are set to along the rear of water (flow) direction；That is, staying water will be big via sedimentation basin After particulate pollutant precipitation process, enters back into permeable wall reaction system and further purified；

Meanwhile in actual use, the integral type package system formed by settling system and permeable wall system is straight It connects in the water body (such as river) for being placed in processing to be clean；

And the settling system is also connected directly with sludge dewatering system, the sludge generated after precipitation process is then via row Mud pipe is transported in sludge dewatering system, and in sludge dewatering system dehydration；

Further, sludge dewatering system is then set to bank；

It, can be with every group of black and odorous river purification system point when being provided with multiple groups black and odorous river purification system in staying water A set of sludge dewatering system is not configured；Alternatively, can also be with the public a set of sludge dewatering system of multiple groups black and odorous river purification system.

More specifically, the settling system then mainly includes sedimentation basin, the sedimentation basin can for inclined-plate clarifying basin or One kind of other efficient sedimentation tanks；Preferably, the sedimentation basin is inclined-plate clarifying basin；

Settling system preferably includes 3~5 inclined-plate clarifying basins, passes through multi stage precipitation, it can be ensured that will be outstanding in water body Floating object removes；

Meanwhile in order to further decrease the purification pressure of permeable reactive barrier system, also further setting in settling system There is the chemicals dosing plant for loading flocculant and/or flocculation aid, by the way that flocculant and/or flocculation aid are added into black and odorous water, Enable to can not by the small granular suspended matters of sloping plate deposition, be cured as forming wadding body (alumen ustum), exist with the suspended matter of deposition Inclined plate bottom side surface forms thin mud layer and is then transported to sludge dewatering system via sludge pipe subsequently into sludge hopper；

Intake chamber can also be arranged in the front of sedimentation basin, so that black and odorous water to be processed can be entered by overflow In sedimentation basin.

Meanwhile the permeable reactive barrier system includes: permeable reactive barrier, integral type active material case, and water outlet Slot；

Different from conventional permeable reactive barrier system, in the utility model, in permeable reactive barrier and without activity The function of the direct filling of material, reaction and purification is integral type active material case by being set in permeable reactive barrier Lai complete At, in this way, it is possible to the more convenient and fast replacement for carrying out active material, while realizing prolonged water body processing and purification；

Further, the materials for wall of permeable reactive barrier is anticorrosion material, while its upstream face and back side are arranged There is permeable hole, the diameter of permeable hole is 1~10mm, such as can be, but be not limited to 2,3,4,5,6,7,8 or 9mm etc.；Thoroughly The setting in water hole can play certain filtration, the water body after precipitation process can be filtered again, thus into One step reduces the pressure of active material processing；

Permeable reactive barrier is along water (flow) direction with a thickness of 0.5~1m.

Likewise, integral type active material case is also prepared by anti-corrosion material, upstream face and back side are provided with spiral shell Line gap, the width of thread gaps is 0.1~1mm, such as can be, but be not limited to 0.2,0.3,0.4,0.5,0.6,0.7, 0.8 or 0.9mm；The setting of thread gaps structure can equally play certain filtration, can be more thin by partial size Small suspended matter is filtered to remove, to avoid blocking in integral type active material case, improves treatment effeciency；

Integral type active material case can 10~50t of load-bearing, upper part is additionally provided with hanging ring, can be by crane directly from wall It inside hangs processing and is replaced；

Meanwhile the built-in carrying active material of integral type active material case, the active material by iron filings, coke, with And zeolite mixes, porosity is 0.3~0.8, such as can be, but be not limited to 0.4,0.5,0.6 or 0.7 etc.；Activity Material can adsorb the pollutants such as organic matter, total phosphorus, ammonia nitrogen in water body, realize the final purification of water body；

In active material, the mass ratio of iron filings, coke and zeolite are as follows: (1~5): (1~5): (1~5)；Preferably, The mass ratio of iron filings, coke and zeolite are as follows: (1~3): (1~3): (1~3)；It is furthermore preferred that iron filings, coke, and boiling The mass ratio of stone are as follows: (2~3): (1~3): (1~3)；Still more preferably, the mass ratio of iron filings, coke and zeolite Are as follows: 2:(1~3): (1~3)；

Via integral type active material case treated water body, then entered in river by effluent trough.

Sludge dewatering system is then made of sludge pump and dewaterer, work of the sludge deposited in settling system in sludge pump Under, entered in dewaterer by sludge pipe and be carried out dehydrating, is separated into filtrate and clod；

Filtrate is passed through in system again, and is formed by clod and then enters in storage mud box, is periodically transported to sewage treatment plant, It is handled together with the sludge in sewage treatment plant.

The black and odorous river purification system of the utility model can be according to the flow velocity of water body (predominantly river) and width etc. Difference, and be configured using different methods, the water body in entire river can be retained, enter the water body in river It is repaired in black and odorous river purification system；It is also possible to the black smelly river of the multiple small-scale structures of arrangement dispersed in river Purification system is flowed, multi-point reparation is carried out to river, gradually improves and promoted water quality.

And the method for carrying out black and odorous river improvement using the black and odorous river purification system based on permeable reactive barrier as above Step can be with specific reference to as follows:

(1) it cuts dirt and receives stream: when flow width is less than 10m, black and odorous river purification system can be fabricated to across entire Entire river is truncated the bottom intrenched stream of the structure of the width in river, system, so that the overflow of black and odorous water entirety is to device It is interior, 1 device can be filled every tens of meter amperes, install 3~5 according to water quality situation；

When flow width is greater than 10m, it can be arranged in what 3~5 midget plants dispersed in river, pass through each dress The detergent power set, promotes water quality of river on the whole；

(2) it sloping plate deposition: through the black and odorous water and big particulate matter in step (1) overflow to sedimentation basin, is filled by dosing It sets and flocculant and flocculation aid is added, so that the suspended matter in water, solidfied material is formed wadding body alumen ustum, be accumulated into inclined tube bottom side surface thin Mud layer, slides back to body refuse superposed layer by gravity, then sinks to sludge hopper, is discharged into sludge dewatering system, supernatant by sludge pipe Liquid then enters permeable reactive barrier system, avoids the blocking of permeable reactive barrier system, extends permeable reactive barrier system Service life；

(3) permeable reactive barrier system: permeable reactive barrier system includes that permeable reactive barrier (is more accurately, internal Be provided with the bearing wall of integral type active material case), integral type active material case and effluent trough, the intracorporal active material iron of wall Bits, coke and zeolite composition, volume ratio are 2:1~3:1~3, and porosity is 0.3~0.8, the thickness of permeable reactive wall wall For 0.5~1m；

Supernatant is entered in permeable reactive barrier system by the upstream face of permeable reactive barrier, then via permeable reaction The back side of wall, into the upstream face of integral type active material case, then during flowing through integral type active material case, with Active material contact removes the pollutant of other hardly possible precipitatings using the suction-operated of the Inner electrolysis and other materials of iron filings, black smelly Water body becomes supernatant liquid, and treated, and water body enters in effluent trough via the back side of integral type active material case, then weighs Newly enter river；

(4) sludge dewatering: the mud through step (2) coagulating sedimentation is pumped into the dewaterer dehydration point positioned at ground by sludge pump From at filtrate and clod, filtrate reenters system, and clod enters storage mud box, is periodically transported to sewage treatment plant and sewage treatment plant Sludge is disposed together.

Treatment thereto process can refer to Fig. 1.

Embodiment 1

Referring to FIG. 2, in the black and odorous river purification system provided by the utility model based on permeable reactive barrier, including The integral type package system being set in water body, the integral type package system can include sloping plate deposition system and permeable reaction Wall system 2；

The sloping plate deposition system includes 3~5 inclined-plate clarifying basins 110, passes through multi stage precipitation, it is ensured that can be by suspended matter Removal；

The top of inclined-plate clarifying basin 110 is provided with cover board 114, and the lower part of inclined-plate clarifying basin 110 is provided with sludge pipe 113, Bottom is provided with sludge hopper 112, and the sludge collected in sludge hopper 112 can be transported in sludge dewatering system by sludge pipe 113 It is handled；

Permeable reactive barrier system 2 includes bearing wall and active material case, and active material upper box part has hanging ring, in activity Replacement can be easily accomplished when material failure, active material 221 is mainly iron filings, coke and zeolite, and volume ratio is 2:1~3: 1~3；

Permeable reactive barrier system 2 will using the Inner electrolysis of iron filings in active material 221 and the suction-operated of other materials Not sedimentable pollutant removal, purified water body are discharged into river by effluent trough 230；

3~5 systems are set according to the pollution level of black and odorous river, are finally reached the effect for thoroughly repairing black and odorous river.

Referring to FIG. 3, the utility model is based in the black and odorous river purification system of permeable reactive barrier, in sloping plate deposition system The precipitating sludge generated in system 1 is pumped into the dewaterer 310 on bank via sludge pipe 113 and is dehydrated by sludge pump, is taken off Sludge after water enters sludge box 320, and cabinet is transported after filling and replaced；

The filtrate generated after filtering reenters in black and odorous river purification system via outlet pipe 311 via intake chamber 111, It is handled again.

Experimental example 1

With reference Fig. 2, the black and odorous river purification system shown in Fig. 3 based on permeable reactive barrier, to certain black and odorous river It administers；

The purification system of black and odorous water is successively made of inclined-plate clarifying basin, PRB system and sludge dewatering system, and river is wide 3m, deep 1.5m, depth of water 0.8m, system-wide are designed as 3.5m, high 1.2m, are embedded in bed mud 0.3m, and wherein inclined-plate clarifying basin is heavy Shallow lake slot is that the thickness of wall body of 3, PRB system is 0.5m, installs set of system every 10m, amounts to 3 sets of systems of installation, three sets of systems Altogether with a set of device for dehydrating sladge waste.

After three sets of systems are handled, water quality significantly improves, and black smelly elimination, Ecology gradually restores.The improvement Front and back black and odorous water water quality indicator such as table 1.

Certain black and odorous river of table 1 administers the water quality indicator of front and back

Project	Black and odorous river	Cross one of system	Cross twice system	Cross three systems
					Sense organ	Black smelly	Coloration reduces slightly smelly	Odorless, tasteless, it is slightly muddy	Odorless, tasteless clarification
pH	7.3	7.1	7.2	7.2
					Ammonia nitrogen (mg/L)	3.2	1.4	0.8	0.21
Total phosphorus (mg/L)	8.3	4.6	1.4	0.5
					Coloration (again)	510	320	50	20

By experimental result as above it is found that the utility model can based on the black and odorous river purification system of permeable reactive barrier The organic matters such as effective ammonia nitrogen, the phosphorus removed in black and odorous water, while water body can also be made to restore odorless clarification.

Although illustrate and describing the utility model with specific embodiment, it will be appreciated that without departing substantially from this reality Many other change and modification can be made in the case where novel spirit and scope.It is, therefore, intended that in appended power Benefit includes all such changes and modifications belonged in the scope of the utility model in requiring.

Claims (10)

1. a kind of black and odorous river purification system based on permeable reactive barrier, which is characterized in that described to be based on permeable reactive barrier Black and odorous river purification system include:

Settling system, permeable reactive barrier system and sludge dewatering system；

Wherein, the settling system is connected with permeable reactive barrier system and sludge dewatering system respectively；

The settling system is an integral structure with permeable wall reaction system.

2. black and odorous river purification system according to claim 1, which is characterized in that the settling system includes sedimentation basin；

Wherein, the lower part of sedimentation basin is provided with sludge hopper, and the sludge collected in sludge hopper is transported to sludge dewatering via sludge pipe System.

3. black and odorous river purification system according to claim 2, which is characterized in that the sedimentation basin is inclined-plate clarifying basin.

4. black and odorous river purification system according to claim 1, which is characterized in that the black and odorous river purification system is also wrapped Include the chemicals dosing plant for loading flocculant and/or flocculation aid.

5. black and odorous river purification system according to claim 1, which is characterized in that the black and odorous river purification system is also wrapped Coagulative precipitation tank is included, the coagulative precipitation tank is set to front of the settling system along water (flow) direction.

6. black and odorous river purification system according to claim 1, which is characterized in that the permeable reactive barrier system packet It includes: permeable reactive barrier, integral type active material case and effluent trough.

7. black and odorous river purification system according to claim 6, which is characterized in that the upstream face of the permeable reactive barrier Back side is provided with permeable hole；Wherein, the diameter of the permeable hole is 1~10mm.

8. black and odorous river purification system according to claim 6, which is characterized in that the integral type active material case is met The water surface and back side are provided with thread gaps；Wherein, the width of the thread gaps is 0.1~1mm.

9. black and odorous river purification system according to claim 6, which is characterized in that the integral type active material case it is upper Portion is provided with hanging ring.

10. black and odorous river purification system according to claim 1, which is characterized in that the sludge dewatering system includes dirt Dredge pump and dewaterer.