CN106277386B - The circulation controllable underground water pollution multistage strengthens repair system and restorative procedure - Google Patents
The circulation controllable underground water pollution multistage strengthens repair system and restorative procedure Download PDFInfo
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- CN106277386B CN106277386B CN201610832128.3A CN201610832128A CN106277386B CN 106277386 B CN106277386 B CN 106277386B CN 201610832128 A CN201610832128 A CN 201610832128A CN 106277386 B CN106277386 B CN 106277386B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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Abstract
A kind of circulation controllable underground water pollution multistage reinforcing repair system: pumped well is arranged in the center of underground water pollution plumage, and pumped well connects underground water distributing reservoir by the aqueduct that draws water, is equipped with water quality sensor and water level sensor in underground water distributing reservoir；By several water filling well constructions around underground water pollution plumage periphery, it is equipped with water filling aqueduct in each water injection well, disposal unit is strengthened by the pollution multistage and connects underground water distributing reservoir, water level sensor is equipped in water injection well and connects automatic control device；Pollution multistage reinforcing disposal unit is staggered by trigonometric expression distributing damper forms zeolite area, first order reaction zone, second level reaction zone, third level reaction zone and active carbon area；Automatic control device is PLC programmable controller, is separately connected water quality sensor, water level sensor, the aqueduct that draws water, transmitter and frequency converter.The invention also discloses the methods repaired to underground water pollution.
Description
Technical field
The invention belongs to underground water pollutions to repair field, more particularly to a kind of circulation controllable underground water pollution multistage
Strengthen repair system.
The invention further relates to the methods that above-mentioned repair system repairs underground water pollution.
Background technique
Currently, China's underground water pollution situation is increasingly severe, contaminated site type is complicated and pollutant kind is more, right
Remedy Technology of Contaminated Groundwater is put forward higher requirements.
Remedy Technology of Contaminated Groundwater mainly has dystopy pump-and-treat system and based technique for in-situ remediation, and wherein dystopy extraction technology exists
Have the characteristics that repairing efficiency is short, effect is obvious, controllability is strong in practical application, but it exists due to adsorbing after the reparation of water-bearing layer
Pollutant on particulate matter discharges caused trailing phenomenon again.
In-situ treatment technology is then divided into air in situ injection, microorganism and permeable coefficient tensor (PRB) etc. in situ, especially
Be PRB technology in groundwater remediation technology by extensive concern, the technology realized in the case where unchanged descending water environment to by
The reparation of polluted underground water, but equally also with the limitation of its own.The technology needs underground water to reach certain flow rate, to protect
Set wall can be passed through by demonstrate,proving underground water, further, since materials for wall is arranged, need to excavate the ditch of respective depth in place
Slot, and trench depth is usually to be arranged according to aqueous layer depth, therefore PRB technology is not suitable for low-permeability in practical projects
Place or the deeper place of underground water buried depth.
Based on the above analysis, in order to preferably solve the problems, such as contaminated site groundwater remediation, it is desirable to provide a kind of universality
The circulation controllable underground water pollution multistage strengthen repair system.
Summary of the invention
The purpose of the present invention is disclose a kind of circulation controllable underground water pollution multistage reinforcing repair system.
A further object of the present invention is to disclose a kind of restorative procedure using above-mentioned repair system to underground water pollution.
To achieve the above object, the circulation controllable underground water pollution multistage provided by the invention strengthens repair system, by
Draw water unit, water filling gang of wells, pollution multistage reinforcing disposal unit and automatic control device composition, in which:
Draw water unit: pumped well is arranged in underground water pollution plumage center, and pumped well connects underground by the aqueduct that draws water
Water distributing reservoir, underground water distributing reservoir is interior to be equipped with water quality sensor and water level sensor；It water quality sensor, water level sensor and draws water
Aqueduct is separately connected automatic control device；
Water filling gang of wells: by several water filling well constructions around underground water pollution plumage periphery, note is equipped in each water injection well
Water aqueduct, each water filling aqueduct strengthen disposal unit by the pollution multistage and connect Polluted Groundwater distributing reservoir, water injection well
In be equipped with water level sensor, water level sensor connect automatic control device；
The pollution multistage strengthens disposal unit: the pollution multistage strengthens disposal unit and is staggered by trigonometric expression distributing damper
Form zeolite area, first order reaction zone, second level reaction zone, third level reaction zone and active carbon area；
Automatic control device: automatic control device be PLC programmable controller, be separately connected water quality sensor,
Water level sensor, the aqueduct that draws water, transmitter and frequency converter.
The circulation controllable underground water pollution multistage strengthens repair system, wherein the pollution multistage strengthens disposition
Zeolite is filled in zeolite area in unit, filled with active carbon in active carbon area, first order reaction zone, second level reaction zone and
Third level reaction zone fills different medium material according to the pollutant kind of processing respectively.
The circulation controllable underground water pollution multistage strengthens repair system, wherein the pollution multistage strengthens disposition
Unit both ends are respectively provided with a sieve plate.
The circulation controllable underground water pollution multistage strengthens repair system, wherein the pollution multistage strengthens disposition
Zeolite area one end in unit connects underground water distributing reservoir, and active carbon area one end connects water injection well.
The circulation controllable underground water pollution multistage strengthens repair system, wherein water injection well and pumped well are all provided with
It sets in the water-bearing layer above water barrier.
The circulation controllable underground water pollution multistage strengthens repair system, wherein underground water distributing reservoir is sealing
Formula underground water distributing reservoir.
It is provided by the invention to strengthen repair system to underground water dirt using the above-mentioned circulation controllable underground water pollution multistage
Contaminate the method repaired:
The pumped well of underground water pollution plumage center setting, the Polluted Groundwater aqueduct that drawn water is stored to underground
Water distributing reservoir, automatic control device according to contaminated water quality and quantity in underground water distributing reservoir to the switch or rate to draw water into
Row control；
Polluted Groundwater in underground water distributing reservoir flows through pollution multistage reinforcing disposal unit by filling the water aqueduct,
Pollutant is strengthened in disposal unit in the multistage first passes around zeolite area, and it is anti-through trigonometric expression distributing damper to pass through the first order step by step
Area, second level reaction zone, third level reaction zone are answered, most afterwards after the disposition of active carbon area is up to standard, by surrounding underground water pollution plumage
Several water injection wells laid inject aquifer, by the circulation drawn water-filled the water, form Polluted Groundwater flow direction and take out
The charge for remittance guiding area of well to control the expansion of pollution range, and plays the continuous backwash to contaminated water-bearing layer
Effect.
The method, wherein when being lower than water level sensor into water level in underground water distributing reservoir, automation control dress
It sets and PLC programmable controller, the corresponding control letter of PLC programmable controller output is output control signals to by transmitter
Number to frequency converter, stop pumping；Starting suction pump draws water automatically again after separated in time, repeatedly with this；
When water injection well filled the water into water-bearing layer not in time and make fill the water gang of wells in water level and level of ground water formed pressure difference when,
Water level sensor in water injection well outputs control signals to PLC programmable controller, and PLC programmable controller output phase is answered
Signal is controlled to frequency converter, suction pump is closed, stops pumping；When pressure difference restores, then automatic starting suction pump draws water, with
This is repeatedly.
The method, wherein programmable in PLC according to change of water quality in polluted underground water distributing reservoir in operational process
The mode of the change of gradient of specific place water quality and the operation program of pumping rate relationship is inputted in sequence controller, converts pumped well
In pumping rate, change Polluted Groundwater the multistage strengthen disposal unit residence time, increase or decrease its processing
Time.
The method, wherein when multistage reinforcing disposal unit remediation efficiency is low, passes through and replace reaction materials at different levels
To ensure repairing effect.
The present invention has the advantages that
1, using trigonometric expression distributing damper, the reaction time of Polluted Groundwater and reaction material can be increased, reduction is repaired
The occupied area of apparatus for coating promotes the effective use of reaction material, reduces rehabilitation cost investment.
2, using the combined type renovation technique that draws water-fill the water, one circulating " hydrosphere " is formed, underground can be effectively solved
The appearance of trailing phenomenon in water repair process reduces the risk that underground water pollutes again.
3, it is directed to different type contaminated site adaptability and strong operability, and can Replacement and Repair at any time in repair process
Material, or recharge material, reduce rehabilitation cost.
4, the automatic control device used can be according to the variation of water level and water quality, auto-controlled water-pumping switch or speed of drawing water
Rate overcomes since the charge for remittance time is long in pumped well and pumping rate need to change caused work of drawing water according to change of water quality
The technical problem that can not be carried out continuously.
Detailed description of the invention
Fig. 1 is the circulation controllable underground water pollution multistage of the invention to strengthen repair system floor plan.
Fig. 2 is the circulation controllable underground water pollution multistage of the invention to strengthen repair system process schematic representation.
Fig. 3 is the pollution multistage of the invention to strengthen disposal unit schematic diagram.
Fig. 4 is automatic control device schematic diagram of the invention.
Primary clustering symbol description in attached drawing:
1 underground water distributing reservoir；2 water injection wells；3 pollution multistages strengthened disposal unit；4 pumped wells；5 water filling aqueducts；6 is dirty
Contaminate plumage；7 draw water aqueduct；8 sieve plates；9 zeolite areas；10 trigonometric expression distributing dampers；11 first order reaction zones；12 second order reactions
Area；13 third level reaction zones；14 active carbon areas；15 charges for remittance guiding；16 water-bearing layers；17 water barriers；18 automatic control devices；19
Water quality sensor；20 water level sensors.
Specific embodiment
The contaminated site underground water pollution repair system of universality provided by the invention comprising the underground of circulation controllable
Water pollution prosthetic device and technique, and can according to the variation of water level and water quality, auto-controlled water-pumping switch and rate it is automatic
Change control device, it is final to realize effectively removing for underground water pollutant.
Circulation controllable underground water pollution repair system of the invention is by the unit that draws water, fills the water gang of wells, pollution reinforced
Set unit, automatic control device composition.
The unit that draws water mainly is made of underground water distributing reservoir, pumped well and aqueduct etc., is used for contaminated underground water
It is evacuated to earth's surface, is distributed after delivering into the storage of underground water distributing reservoir by the aqueduct that draws water to each water injection well.
Filling the water gang of wells is to be laid in Pollution Plume periphery by several water filling well constructions；
Pollution reinforced disposal unit fills different medium material along water (flow) direction respectively, and each material fills unit it
Between trigonometric expression distributing damper is alternately set, to increase the time of contact of pollutant and filler, reduce the land occupation face of disposal unit
Product；
Automatic control device is by water level sensor, water quality sensor, transmitter, PLC programmable controller, frequency converter
It is formed Deng part, to auto-controlled water-pumping rate and water pumping switch, to realize normally continuously running for whole system.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, pumped well 4 is arranged in 6 center of underground water pollution plumage, pumped well 4 is arranged above water barrier 17
Water-bearing layer 16, by draw water aqueduct 7 connect underground water distributing reservoir 1, underground water distributing reservoir 1 of the invention be sealingly under
Water distributing reservoir is stored Polluted Groundwater to underground water distributing reservoir 1 by pumped well 4 and the aqueduct 7 that draws water；Underground moisture is matched
Water quality sensor 19 and water level sensor 20 are equipped in pond 1, water quality sensor 19, water level sensor 20 and the aqueduct 7 that draws water divide
It Lian Jie not automatic control device 18 (as shown in Figure 4).
Water filling gang of wells is formed by several water injection wells 2 around underground water pollution plumage periphery, water injection well 2 is arranged in water-bearing layer
In 16, water filling aqueduct 5 is equipped in each water injection well 2, each water filling aqueduct 5 is strengthened disposal unit 3 by the pollution multistage and connected
Receive polluted underground water distributing reservoir 1；Water level sensor 20 is equipped in water injection well 2, water level sensor 20 connects automation control dress
Set 18 (as shown in Figure 4).
The pollution multistage strengthens disposal unit 3 and is staggered that form zeolite area 9, the first order anti-by trigonometric expression distributing damper 10
11st area, second level reaction zone 12, third level reaction zone 13 and active carbon area 14 are answered, is filled with zeolite, active carbon area in zeolite area 9
Active carbon, the pollution of first order reaction zone 11, second level reaction zone 12 and third level reaction zone 13 according to processing are filled in 14
It (is skill known in this field about different packing materials are used for different pollutants that species fill different medium material respectively
Art), the both ends that the pollution multistage strengthens disposal unit 3 are respectively provided with a sieve plate 8 (as shown in Figure 3).It pollutes the multistage and strengthens disposition
9 one end of zeolite area connects underground water distributing reservoir in unit, and 14 one end of active carbon area connects water injection well (as shown in Figure 2).
Automatic control device 18 of the invention is PLC programmable controller, is separately connected water quality sensor 19, water level
Sensor 20, draw water aqueduct 7, transmitter and frequency converter.Transmitter of the present invention, frequency converter and programmable with PLC
The connection of sequence controller is well-known technique.
The present invention is suitable for different types of contaminated site groundwater remediation, and repair process is:
First underground water pollution plumage center be arranged pumped well 4, for by Polluted Groundwater through the water guide that draws water
The storage of pipe 7 is to underground water distributing reservoir 1, and to flow through pollution more by filling the water aqueduct 5 for Polluted Groundwater in underground water distributing reservoir 1
Stage strengthens disposal unit 3, and pollutant is strengthened in the multistage first passes around zeolite 9 in disposal unit 3, and shunts and keep off through trigonometric expression
Plate 10 passes through first order reaction zone 11, second level reaction zone 12, third level reaction zone 13 step by step, most reaches afterwards through the disposition of active carbon 14
After mark, aquifer 16 is injected by several water injection wells 2 laid around underground water pollution plumage.Pass through what is drawn water-fill the water
Circulation forms Polluted Groundwater and flows to 15 regions of charge for remittance guiding of pumped well, so that the expansion of pollution range is controlled, and
Play the role of the continuous backwash to contaminated water-bearing layer.In addition, when the multistage strengthens disposal unit 3 due to longtime running reparation
When inefficiency, reaction materials at different levels can be changed quickly to ensure efficient repairing effect.
In repair process, can by automatic control device 18 according to the water quality and quantity in underground water distributing reservoir 1 to pumping
The switch or rate of water are controlled.Cause to be drawn water under the entrance sealingly of aqueduct 7 when lower due to groundwater seepage
Water shortage in water distributing reservoir 1 is to meet the water for strengthening the distribution of disposal unit 3 to the pollution multistage by water filling aqueduct 5
When, i.e., when being sealingly lauched in distributing reservoir 1 water level lower than water level sensor 20, output control signals to by transmitter
PLC programmable controller, the corresponding control signal of PLC programmable controller output to frequency converter, stops pumping, interval one
Starting suction pump draws water automatically again after fixing time, repeatedly with this；Preferably cause when due to groundwater seepage due to water filling
Well 2 fills the water not in time into water-bearing layer and makes to fill the water water level and level of ground water in gang of wells and form pressure difference, when pressure difference is more than reasonable
When range, PLC programmable controller is output control signals to by the water level sensor 20 being arranged in water injection well 2, PLC can
Programming sequence controller output phase should control signal to frequency converter, close suction pump, stop pumping.Work as pressure difference after separated in time
When being restored in proper range, starting suction pump draws water system automatically again, repeatedly with this.In addition, the automatic control system
18 can also be according to change of water quality in underground water distributing reservoir 1 in system operation, by inputting in PLC programmable controller
The mode of the operation program of the change of gradient and pumping rate relationship of specific place water quality converts the pumping rate in pumped well,
Change Polluted Groundwater in the residence time of disposal unit, increase or decrease it and handle the time, thus realizing treatment effect
Under the premise of, it can effectively reduce operating cost.
Claims (10)
1. a kind of circulation controllable underground water pollution multistage strengthens repair system, multistage by the unit that draws water, water filling gang of wells, pollution
Duan Qianghua disposal unit and automatic control device composition, in which:
Draw water unit: pumped well is arranged in the center of underground water pollution plumage, and pumped well connects underground water by the aqueduct that draws water
Distributing reservoir, underground water distributing reservoir is interior to be equipped with water quality sensor and water level sensor；Water quality sensor, water level sensor and drawing water is led
Water pipe is separately connected automatic control device；
Water filling gang of wells: by several water filling well constructions around underground water pollution plumage periphery, water filling is equipped in each water injection well and is led
Water pipe respectively fills the water aqueduct by the pollution multistage and strengthens disposal unit connection underground water distributing reservoir, is equipped with water level in water injection well
Sensor, water level sensor connect automatic control device；
The pollution multistage strengthens disposal unit: pollution multistage reinforcing disposal unit is staggered by trigonometric expression distributing damper to be formed
Zeolite area, first order reaction zone, second level reaction zone, third level reaction zone and active carbon area；
Automatic control device: automatic control device is PLC programmable controller, is separately connected water quality sensor, water level
Sensor, the aqueduct that draws water, transmitter and frequency converter.
2. the circulation controllable underground water pollution multistage according to claim 1 strengthens repair system, wherein pollution is multistage
It is filled with zeolite in zeolite area in Duan Qianghua disposal unit, is filled with active carbon, first order reaction zone, second in active carbon area
The pollutant kind of order reaction area and third level reaction zone foundation processing fills different medium material respectively.
3. the circulation controllable underground water pollution multistage according to claim 1 or 2 strengthens repair system, wherein pollution
Multistage strengthens disposal unit both ends and is respectively provided with a sieve plate.
4. the circulation controllable underground water pollution multistage according to claim 3 strengthens repair system, wherein pollution is multistage
Zeolite area one end in Duan Qianghua disposal unit connects underground water distributing reservoir, and active carbon area one end connects water injection well.
5. circulation controllable underground water pollution multistage according to claim 1 strengthens repair system, wherein water injection well and
Pumped well is arranged in the water-bearing layer above water barrier.
6. the circulation controllable underground water pollution multistage according to claim 1 strengthens repair system, wherein underground moisture
It is sealingly to be lauched distributing reservoir with pond.
Underground water pollution is repaired 7. the circulation controllable underground water pollution multistage described in claim 1 strengthens repair system
Method:
The pumped well of underground water pollution plumage center setting, the Polluted Groundwater aqueduct that drawn water is stored to underground moisture
With pond, automatic control device controls the switch or rate that draw water according to contaminated water quality and quantity in underground water distributing reservoir
System；
Polluted Groundwater in underground water distributing reservoir flows through pollution multistage reinforcing disposal unit, pollution by filling the water aqueduct
Object is strengthened in disposal unit in the multistage first passes around zeolite area, and passes through the first order reaction step by step through trigonometric expression distributing damper
Area, second level reaction zone, third level reaction zone, most afterwards after the disposition of active carbon area is up to standard, by surrounding underground water pollution plumage cloth
If several water injection wells inject aquifer, by the circulation drawn water-filled the water, form Polluted Groundwater flow direction and draw water
The charge for remittance guiding area of well, to control the expansion of pollution range, and the continuous backwash played to contaminated water-bearing layer is made
With.
8. according to the method described in claim 7, wherein, when entering that water level is lower than water level sensor in underground water distributing reservoir,
Automatic control device outputs control signals to PLC programmable controller, the output of PLC programmable controller by transmitter
Corresponding control signal stops pumping to frequency converter；Starting suction pump draws water automatically again after separated in time, anti-with this
It is multiple；
When water injection well filled the water into water-bearing layer not in time and make fill the water gang of wells in water level and level of ground water formed pressure difference when, water filling
Water level sensor in well outputs control signals to PLC programmable controller, and PLC programmable controller output phase should control
Signal closes suction pump, stops pumping to frequency converter；When pressure difference restores, then automatic starting suction pump draws water, anti-with this
It is multiple.
9. according to the method described in claim 7, wherein, according to the change of water quality in underground water distributing reservoir in operational process,
The mode of the change of gradient of specific place water quality and the operation program of pumping rate relationship is inputted in PLC programmable controller,
Convert pumped well in pumping rate, change Polluted Groundwater the multistage strengthen disposal unit residence time, increase or
It reduces it and handles the time.
10. the method according to claim 7 or 9, wherein when the remediation efficiency of multistage reinforcing disposal unit is low, lead to
It crosses and replaces reaction materials at different levels to ensure repairing effect.
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| CN104671385A (en) * | 2015-01-14 | 2015-06-03 | 同济大学 | Method for controlling pollution of ground water of sulfate polluted site and remediating soil |
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| CN104671385A (en) * | 2015-01-14 | 2015-06-03 | 同济大学 | Method for controlling pollution of ground water of sulfate polluted site and remediating soil |
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Effective date of registration: 20230105 Address after: 421, Floor 4, Building 6, Yard 7, Yuxi Road, Shunyi District, Beijing, 101318 Patentee after: Beijing Yixian Environmental Protection Technology Co.,Ltd. Address before: 202C-1, Floor 2, Building 106, Lize Zhongyuan, Chaoyang District, Beijing, 100102 Patentee before: BEIJING DERUIKESEN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |