CN106397790B - The double property humic acid extraction equipments of hydrophilic-hydrophobic in a kind of water body - Google Patents
The double property humic acid extraction equipments of hydrophilic-hydrophobic in a kind of water body Download PDFInfo
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- CN106397790B CN106397790B CN201610920653.0A CN201610920653A CN106397790B CN 106397790 B CN106397790 B CN 106397790B CN 201610920653 A CN201610920653 A CN 201610920653A CN 106397790 B CN106397790 B CN 106397790B
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
Abstract
The present invention provides a kind of double property humic acid extraction equipments of hydrophilic-hydrophobic in water body, and the double property dissolving humic acid extraction units of unit, water tank, general control system and hydrophilic-hydrophobic are adjusted including raw water feed unit, pretreatment unit, nanofiltration upgrading unit, acid-base value；Wherein, the double property dissolving humic acid extraction units of the hydrophilic-hydrophobic include liquid memory, filter, vacuum pump and elution device；The filter inlet is connect with the outlet of the water tank；The filter outlet is connect with liquid memory entrance；The double property of hydrophilic-hydrophobic are dissolved by humic acid by membrane filtration in the double property dissolving humic acid extraction units of hydrophilic-hydrophobic and other Dissolved Organic Matters detach, then are eluted and purified by elution device, the double property dissolving humic acid of extraction hydrophilic-hydrophobic.The double property humic acid extraction equipments of hydrophilic-hydrophobic are simple in structure in a kind of water body provided by the invention, high degree of automation, easy to operate.
Description
Technical field
The present invention relates to a kind of double property humic acid extraction equipments of hydrophilic-hydrophobic in concentration technique field more particularly to water body.
Background technology
Dissolved organic matter is can be by a kind of natural macromolecular organic admixture of the aperture for 0.45 μm of filter membrane, its source
Change in animals and plants secretion and its Residue decay product, the Nomenclature Composition and Structure of Complexes with space-time and source.According to it in water body
Dissolving situation, dissolved organic matter can be divided into：Fulvic acid (being all dissolved in water under any pH value conditions of fulvic acid) and humic acid
(humic acid are not soluble in water in pH 1).In Marine water, the acidic materials such as dissolving humic acid, fulvic acid are to organic dirt
The environmental behaviour of dye object metal ion has important influence.For example, the groups such as phenolic hydroxyl group, carbonyl for containing in dissolving humic acid can
To interact with the heavy metal in water and poisonous and harmful substance, and then realize to heavy metal and poisonous and harmful object difficult to degrade
Conversion, migration and the home to return to of matter in the environment.But how to realize at present high from the Marine waters such as rivers and lakes and underground water
The problem of dissolving humic acid of effect ground extraction high concentration is urgent need to resolve.At present, classical water body dissolving humic acid extracting method makes
Be enriched with XAD-8 resins, cause hydrophily humic acid lose, so as to influence result of study with actual environment not attached, gained
Structure can not be applied to engineering practice.
A kind of article about humic acid extracting method of Peng An, Wang An grey hair table, thesis topic：Water body parent's humic acid
And its extraction of complex compound I. Jis canal humic acid and characterization (ACTA Scientiae Circumstantiae, the 2nd phase of the first volume, 1981.06), it discloses
A kind of method of humic acid extraction, what extracting method mainly carried out under laboratory conditions, humic acid extraction and purifying
Including two steps：
(1) pretreatment of resin is adsorbed
Processed absorption resin dress column, resin height and diameter ratio are 10:1, upper and lower opening is filled with mineral wool, can both be played
Supporting function can play a role in filtering again.
(2) extraction of river water humic acid
The extraction flow of river water humic acid (FA) such as attached drawing 2.
Humic acid extracting method disclosed in this paper carries out under the conditions of depending primarily on laboratory and a large amount of manual operations
, operating process is complicated, and the humic acid amount extracted is less, is not suitable for extensive sample collection；It is in addition, rotten disclosed in this paper
It grows sour extracting method to be affected by man's activity operation, it is impossible to applied to the extraction for dissolving humic acid in high salinity Marine water
And compare, exploitativeness is bad.
Invention content
In order to obtain the double property dissolving humic acid of the hydrophilic-hydrophobic of high concentration, the present invention provides hydrophilic in a kind of water body-thin
The double property humic acid extraction equipments of water, this device can be widely used in hydrophilic in the Marine waters such as rivers and lakes and underground water-thin
The extraction of the double property dissolving humic acid of water.
In order to solve the above-mentioned technical problem, the double property humic acid extractions of hydrophilic-hydrophobic are set in a kind of Marine water of the invention
It is standby, including raw water feed unit, pretreatment unit, nanofiltration upgrading unit, acid-base value adjust unit, water tank, general control system and
The double property dissolving humic acid extraction units of hydrophilic-hydrophobic；
The double property dissolving humic acid extraction units of the hydrophilic-hydrophobic include liquid memory, filter, vacuum pump and elution
Device；The filter inlet is connect with the outlet of the water tank；The filter outlet is connect with liquid memory entrance；
The filter includes sample room, filter membrane, and using sand core as filter membrane supporter；The aperture value model of the filter membrane
Enclose is 0.1-0.7 μm；
The outlet of the elution device is connect with filter inlet；The vacuum pump is connect with the liquid memory.It is excellent
Selection of land, the water tank use acid resisting material, are equipped with sealing cover above, interior to be equipped with blender, liquid level sensor and pH sensings
Device；The end face of the sealing cover is equipped at least five through-hole；Pipeline between the water tank and the filter gos deep into water tank,
It is sealing structure at the top of pipeline, duct wall is equipped with the hole that multiple apertures are 50 μm, and the minimum altitude in hole is controlled in tank height
At 1/10, the tank pipe that stretches into is externally provided with filter mantle, and the aperture of the filter mantle is 100 μm.
Preferably, the raw water feed unit use self-priming water supplying pump, raw water can be fresh water or seawater, raw water quality it is turbid
Degree is within 100NTU, and the value of TOC is within 1000mg/l, and conductivity value is within 40000 μ S/cm；Before self priming pump
End is equipped with filter bag, and the aperture of the filter bag is 10 μm.
Preferably, the pretreatment unit includes level-one precision micro-filtration filter, two level precision micro-filtration filter level-one essence
The aperture of precision Filter element is 1 μm in close micro-filter, and the aperture of precision Filter element is 0.45 μm in two level precision micro-filtration filter；Institute
The outlet for stating the entrance and self priming pump of level-one precision micro-filter connects, and the outlet of level-one precision micro-filter and two level precision are micro-
The entrance connection of filter, the outlet of two level precision micro-filter is connect with water tank.
Preferably, using polypropylene filter core, precision Filter element needs to replace in time firsts and seconds precision Filter element, can keep away
Exempt to block and excessive contaminants cooperating microorganisms.
Preferably, the nanofiltration upgrading unit includes nano-filtration unit, high-pressure pump, the first dissolved organic carbon on-line monitoring probe
It monitors on-line and pops one's head in the second dissolved organic carbon；Wherein nano-filtration unit includes NF membrane and stainless steel putamina, the NF membrane
Aperture value is 1-2nm；
The first dissolved organic carbon on-line monitoring probe is set on the nano-filtration unit concentrated water exit, and the second dissolving is organic
Carbon on-line monitoring probe is at the wastewater outlet of nano-filtration unit；By the inspection for comparing 2 dissolved organic carbon on-line monitoring probes
Survey numerical value, it can be determined that whether NF membrane working condition is good.
Preferably, the nano-filtration unit is equipped with liquid-inlet, concentrated water outlet and wastewater outlet；The liquid-inlet passes through height
Press pump is connect with water tank, and the concentrated water outlet is connect with water tank, and the waste water is discharged by pipeline；The nano-filtration unit and high pressure
Security valve is equipped between pump, concentrated water, which exports, is equipped with security valve, in raw water concentration process, the nano-filtration unit waste water and concentrated water dissolving
When organic carbon difference is less than preset value, the security valve is opened, and illustrates that system can not carry out nanofiltration concentration at this time.
Preferably, the acid-base value adjusts unit and includes pH sensors, blender, measures dosing pump, acid solution chemical tank；
The pH sensors are set in water tank；The metering dosing pump is set between acid solution chemical tank and water tank, measures entering for dosing pump
Outlet of the mouth respectively with acid solution chemical tank is connect, and the outlet for measuring dosing pump is connect with water tank.
Preferably, the general control system includes control unit and touch screen device, and described control unit is connect with touch screen device, institute
Control unit is stated to connect with self priming pump, liquid level sensor, pH sensors, metering dosing pump, high-pressure pump and acid-base value adjusting unit；
Liquid level sensor and pH sensors are equipped in the water tank；PH sensors are equipped with lifting platform, it may be necessary to rise to outside water tank.
The present invention also provides it is a kind of using the double property humic acid extraction equipments of hydrophilic-hydrophobic in the water body carry out it is hydrophilic-
The method of hydrophobic double property dissolving humic acid extractions, includes the following steps：
(1) start the general supply start button of general control system；
(2) start self-priming pump start button, self priming pump draws raw water by pipeline, and the filter bag of self priming pump front end is to raw water
It is tentatively filtered, the raw water after filtering enters the level-one precision micro-filtration filter in pretreatment unit by the supercharging of self priming pump
Raw water is once filtered, the raw water after tentatively filtering enters two level precision micro-filtration filter and carries out secondary filtering；It crosses
Raw water after filter enters water tank by pipeline；When the water level in water tank reaches 4/5 tank height, self priming pump is stopped；
(3) raw water in water tank is pressurized through high-pressure pump and enters nanofiltration upgrading unit by pipeline, and NF membrane can be to raw water
In Natural Dissolved Organic Matter concentrated, obtain waste water and concentrated water；Direct discharging of waste water by NF membrane is to effluent storage
Device is stored, and concentrated water is recycled into water tank, when what the dissolved organic carbon on-line monitoring probe in water tank measured has
When the content of machine carbon reaches preset value, stop concentration；The natural water bodies such as fresh water or seawater are separated into waste water and concentrated water by NF membrane,
Waste water ratio is higher, and concentrated water concentration containing organic matter is higher, but excessively high waste water ratio damages NF membrane；Therefore, it is reverse osmosis
The wastewater flow rate of film discharge is 1 with the ratio of the concentrated water amount of discharge:9-9:1, preferably 2:1-1:2；
(4) start acid-base value and adjust unit, metering dosing pump receives pH sensor signals startup acid solution and adds in program, from acid
Liquid chemical tank extracts acid solution and injects non-oxidizable acid solution into water tank by acid-resistant pipeline, while stirring motor starts in water tank,
So that acid solution and concentrated water uniformly mix, until reaching preset pH value, the program stopped work of metering dosing pump acid liquid；
(5) after stirring for 24 hours, the outlet valve of water tank is opened, while start vacuum pump, is pressed by vacuum pump, in water tank
Concentrated water by solution strainer influent reservoir, the double property dissolving humic acid of hydrophilic-hydrophobic are trapped within above filter membrane,
Impurity flows into liquid memory；
(6) after completing filtering, the outlet valve of water tank is closed, the outlet valve of elution device is opened, is applied by vacuum pump
It presses, the pure water in elution device is rinsed filter membrane by pipeline influent reservoir；After the completion of flushing, fluid storage
Liquid direct emission in device is fallen, and the organic matter stayed on filter membrane dissolves humic acid for the double property of hydrophilic-hydrophobic of required extraction.
Preferably, the discharge line of nano-filtration unit waste water is equipped with speed governing valve, and the nano-filtration unit is connect with the water tank
Pipeline be equipped with speed governing valve, NF membrane discharge wastewater flow rate with discharge concentrated water amount ratio be 1:9-9:1.
Preferably, the degree of the acid-resistant pipeline can bear the non-oxidizing acid of 10mol/L；Nitration mixture concentration in the water tank
For 0.001-1mol/L hydrochloric acid and 0.1-0.5mol/L hydrofluoric acid；The preset value of the pH is 0.5-3.
Preferably, the front end of the high-pressure pump is equipped with pressure gauge and security valve, in raw water concentration process, before the high-pressure pump
When pressure is more than preset value, the security valve is opened, and avoids high-pressure pump damage and pipeline burst phenomenon.
Preferably, NF membrane can not dry-storage, it is necessary to assure has water in putamina, if it is more than 70h that equipment is left unused for some reason, answers
NF membrane is soaked in clean water, if long-term leave unused must be sealed up for safekeeping by NF membrane requirement storage mode.
Preferably, general control system uses low-voltage distribution, and the voltage class of power supplying and distributing equipment is 220VAC, and set low pressure and match
Electric cabinet is powered to process system power-equipment；Power switch in control system is protected with power control cabinet gate interlock, can be reached anti-
Dirt, rapid heat dissipation and the effect being easily installed.
Preferably, the front end of the self priming pump is equipped with safety valve, is equipped with liquid level sensor in the water tank, water level is in water
During 4/5 volume of case, the safety valve is opened, and self priming pump shuts down, and avoids cistern water level excessively high.
Compared with prior art the beneficial effect comprise that：
(1) present invention provides that a kind of double property humic acid extraction equipments of hydrophilic-hydrophobic in water body are simple in structure, the degree of automation
It is high, easy to operate, easily and effectively the double property dissolving humic acid of hydrophilic-hydrophobic and other impurity can be detached, extraction is a large amount of
The double property dissolving humic acid of hydrophilic-hydrophobic preferably utilize the double property dissolving humic acid of extracted hydrophilic-hydrophobic；
(2) it is 0.45 μm that level-one precision Filter element aperture, which is 1 μm of two level precision Filter element aperture, in the present invention, is more effectively filtered out
The impurity such as suspended matter of larger particles in water preferably avoid particle sundries and scratch, block and high pressure punching caused by film
It hits；
(3) whole process that acid-base value adjusts unit adjusting pH value is full automatic, saves labour, reduces production
Cost, the accuracy rate of the pH value of modulation are higher；
(4) wastewater flow rate discharged in NF units in nanofiltration upgrading unit and the ratio of the concentrated water amount of discharge are 2:1-1:2, into
And can it is excessive to avoid waste water stream output or it is too small caused by film injury or device efficiency reduce；
(5) present invention is not related to the use of the hydrophobicity resins such as XAD-8, and extract is humic acid, both including hydrophobic humic
Acid also includes hydrophilic humic acid, compared with the hydrophobicity humic acid of international humic acid association criterion method extraction, can react comprehensively
True environment present situation and information.
Description of the drawings
Fig. 1 is the double property humic acid extraction equipment structure diagrams of hydrophilic-hydrophobic in a kind of water body of the present invention.
Fig. 2 is that river water humic acid extracts flow chart in the prior art.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail.
Join shown in Fig. 1, Fig. 1 is the process flow chart of the double property humic acid extraction equipments of hydrophilic-hydrophobic in water body of the present invention.This
The double property dissolving humic acid extraction equipments of the hydrophilic-hydrophobic provided are provided, it is dense including raw water feed unit, pretreatment unit, nanofiltration
Contracting unit, acid-base value adjust the double property dissolving humic acid extraction units of unit, water tank 8, general control system 4 and hydrophilic-hydrophobic；Wherein
Raw water feed unit mainly includes self priming pump 1；Pretreatment unit includes level-one precision micro-filtration filter 2, two level precision micro-filtration mistake
Filter 3；Nanofiltration upgrading unit includes nano-filtration unit 11, high-pressure pump 9 and dissolved organic carbon on-line monitoring probe apparatus, wherein nanofiltration
Unit 11 includes NF membrane and stainless steel putamina；Acid-base value adjusts unit and includes pH sensors, metering dosing pump 5, acid solution medicament
Case 6, the double property dissolving humic acid extraction units of the hydrophilic-hydrophobic include liquid memory 18, filter, vacuum pump 17, wherein
Filter includes sample room 14, filter membrane 15 and sand core 16, and filter membrane 15 is located in sample room 14, and is supported by sand core 16；Master control
For system 4 mainly using electrical equipment control, collection therein controls operation unified progress in switch board, and whole system can be made to realize certainly
Dynamic control operation and manual operation.
Wherein, the entrance of level-one precision micro-filter 2 is connect with the outlet of self priming pump 1, and level-one precision micro-filter 2 goes out
Mouth is connect with the entrance of two level precision micro-filter 3, and the outlet of two level precision micro-filter 3 is connect with water tank 8；PH sensors position
In water tank 8, metering dosing pump 5 be set between water tank 8 and acid solution chemical tank 6, measure dosing pump 5 entrance respectively with acid solution medicine
The outlet connection of agent case 6, the outlet of metering dosing pump 5 are connect with water tank 8；Nano-filtration unit 11 is equipped with liquid-inlet, concentrated water outlet
And waste liquid outlet；Liquid-inlet is connect by high-pressure pump 9 with water tank 8, and concentrated water outlet is connect with water tank 8, direct discharging of waste water storage
There are in storage of waste water device, the outlet of elution device 13 is connect with filter；The entrance of filter outlet and liquid memory 18
Connection, the entrance of filter are connect with the outlet of water tank 8；The outlet of vacuum pump 17 is placed in the cavity of liquid memory 18；Always
Control system 4 includes control unit and touch screen device, and control unit is connect with touch screen device, control unit and self priming pump 1, level sensing
Device, pH sensors, metering dosing pump 5 and high-pressure pump 9 connect.
Hydrophilic-hydrophobic humic acid extraction equipment in water body provided by the invention, water body water source be seawater or fresh water, raw water
Water quality requirement for water quality turbidity within 1000NTU, the value of TOC is within 1000mg/L, and conductivity value is 40000
Within μ S/cm；The front end of self priming pump is equipped with filter bag, and the aperture of filter bag is 10 μm.
General control system uses low-voltage distribution, and the voltage class of power supplying and distributing equipment is 220VAC, and set low-voltage distribution cabinet, to
Process system power-equipment is powered.In addition, the switch board of outfit independent operation and electric switch and electrical member in control system
Part is all concentrated in switch board, and power switch is protected with power control cabinet gate interlock, can be reached dust-proof, rapid heat dissipation and is easily installed
Effect.
General supply and start button are first turned on, makes whole system in running order, self priming pump 1 is drawn former by pipeline
Water, raw water are tentatively filtered by being located at the filter bag of 1 front end of self priming pump, and the aperture of filter bag is 10 μm, by preliminary mistake
The raw water of filter carries out primary mistake by the level-one precision micro-filtration filter 2 that the supercharging of self priming pump enters in pretreatment unit to raw water
Filter, the raw water after tentatively filtering enter two level precision micro-filtration filter 3 and carry out secondary filter, and wherein level-one precision micro-filtration filters
Filter core in device 2 is 1 μm, and the filter core in two level precision micro-filtration filter 3 is 0.45 μm, and such filter core diameter setting can be more preferable
Ground filters out the impurity such as suspended matter of larger particles in water, improves water quality, and particulate contaminant is more effectively avoided to be drawn caused by film
Wound blocks.In addition, precision Filter element needs to replace in time, avoid blocking and cross multi-pollutant and gather cooperating microorganisms.
Raw water after the filtering of two level precise filtering device enters water tank 8 by connecting pipe, and the liquid level in water tank 8 passes
Sensor is detected the water level in water tank, and when water level reaches the 4/5 of water tank volume, liquid level sensor is sent out to general control system
After liquid level signal, general control system is sent to receive liquid level signal, control signal is sent to self priming pump, it is made to be stopped, that is, is stopped
The water filling into water tank.
Raw water in water tank enters the NF membrane in nano-filtration unit 11 by the pressurization of high-pressure pump 9, NF membrane can by fresh water and
Concentrated water and waste water are separated into seawater, the waste water of saliferous and small molecule organic matter through NF membrane is expelled directly out, in nano-filtration unit
11 waste water discharge opening is equipped with speed governing valve, can adjust the speed that waste water stream goes out NF membrane, and speed adjustable range is 0-
200L/h；Concentrated water through nanofiltration UF membrane is flowed back by pipeline in water tank 8, in nano-filtration unit 11 and 8 connecting pipe of water tank
Equipped with speed governing valve, the speed that concentrated stream goes out NF membrane can be adjusted, speed adjustable range is 0-200L/h；Waste water stream goes out nanofiltration
The speed value that the speed and concentrated stream of film go out NF membrane is arranged in appropriate range, makes wastewater flow rate and row that NF membrane is discharged
The ratio of concentrated water amount gone out is 1:9-9:1, so can to avoid because of excessive velocities that waste water flows out or excessively slowly to NF membrane caused by
Injury or device efficiency reduce.Concentrated water water tank inlet can recycle concentration, and so repeatedly, the water in raw water box is fewer and fewer,
The concentration of the content of organic matter is higher and higher, when the organic carbon content that the dissolved organic carbon on-line determination device in water tank measures reaches
During preset value, stop concentration, close concentration systems.
During raw water concentrates, avoid that cocnentration factor is excessively high, and cocnentration factor is higher as possible, saliferous rate and organic concentration are got over
Height, excessively high concentration organic matter and inorganic salts crystallite can damage NF membrane, and therefore, the control of raw water cocnentration factor is existed
Below 10000mg/L.
Nano-filtration unit waste outflow pipe is equipped with the second dissolved organic carbon on-line monitoring probe 10, nano-filtration unit concentrated water drainage
Go out at pipeline to be equipped with the first dissolved organic carbon on-line monitoring probe 12, by comparing the second dissolved organic carbon on-line monitoring probe 10
With the numerical value of 12 detection of the first dissolved organic carbon on-line monitoring probe, it is possible to determine that whether NF membrane leaks；I.e. if second is molten
It is equal with the numerical value of 12 detection of the first dissolved organic carbon on-line monitoring probe to solve organic carbon on-line monitoring probe 10, it is possible to determine that receive
There is Seepage in filter membrane.The exit of nano-filtration unit concentrated water and waste water is additionally provided with security valve, in raw water concentration process, nanofiltration
When the dissolved organic carbon content difference of unit concentrated water and waste water is less than preset value, security valve is opened, and system is out of service at this time.
The front end of high-pressure pump is equipped with pressure gauge and security valve, during concentration, when water level is less than the 1/5 of water tank,
Security valve is opened, and high-pressure pump shuts down, it is possible thereby to the phenomenon that high-pressure pump is avoided high-pressure pump to be caused to burn when dallying；Work as high pressure
When pressure before pump is more than preset value, security valve is opened, and can be damaged and pipeline burst phenomenon to avoid high-pressure pump.
After raw water concentrates, start acid-base value and adjust unit.Required pH value in general control system 4 is set, is set
Fixed pH value is 0.5-3, and pH value signal is passed to metering dosing pump 5 by sensor, and metering dosing pump startup acid solution adds in program,
Acid solution, which is extracted, from acid solution chemical tank 6 injects non-oxidizable acid solution, while the stirring horse in water tank 8 into water tank by acid-resistant pipeline
Up to startup so that acid solution and concentrated water uniformly mix, and carry out pH value adjusting, until pH value reaches pre-set value, metering dosing
The work of 5 acid solution program stoppeds is pumped, the stirring motor measured in dosing pump 5 and water tank 8 is stopped.
The process that entire pH value is adjusted is full automatic, saves labour, reduces production cost, and the pH modulated
The accuracy of value is higher, and the process efficiency of preparation is also higher.During pH adjustings, using the water in stirring water tank so that
It flows into acid solution medicament therein uniformly to dissolve in water, local pH value can be avoided higher or relatively low.After the completion of pH value is adjusted, stirring
Motor works on, and for 24 hours, since water tank 8 is using acid resisting material, and it is equipped with sealing cover to the concentrated water stirring in water tank 8 above, close
The end face of capping is equipped at least five through-hole；Blender and pH sensors are equipped in it；PH sensors are equipped with lifting platform, pH value tune
After the completion of section, lifting platform can rise to pH sensors on the water surface；
Pipeline between water tank and filter gos deep into water tank, is sealing structure at the top of pipeline, duct wall is equipped with multiple holes
Diameter is 50 μm of hole, and the minimum altitude in hole is controlled at the 1/10 of tank height, and the tank pipe that stretches into is externally provided with filter mantle,
The aperture of the filter mantle is 100 μm；The impurity being more advantageous in precipitation concentrated water.
After concentrated water in water tank stirs 24 hours, the outlet valve of water tank 8 is opened, while starts vacuum pump 17, by true
Sky pump 17 presses, and the concentrated water in water tank 8 is flowed by pipeline in the sample room 14 of filter, is then filtered by filter membrane 15,
Liquid after filtering is flowed into liquid memory 18, and the double property dissolving humic acid of hydrophilic-hydrophobic are trapped within above filter membrane, trash flow
Enter liquid memory 18；
After completing filtering, the outlet valve of water tank 8 is closed, the outlet valve of elution device 13 is opened, passes through vacuum pump 17
It presses, the pure water in elution device 13 flows into filter by pipeline, and filter membrane is rinsed；After the completion of flushing, waste liquid is direct
In influent reservoir 18, the liquid in liquid memory can be fallen with direct emission, and the organic matter stayed on filter membrane is required
The double property dissolving humus of the hydrophilic-hydrophobic of extraction.
After the double property dissolving humic acid extractions of hydrophilic-hydrophobic, the discharge outlet of water tank is closed, it will be pure in elution device 13
Water pours into water tank, starts concentration, concentrated water valve is opened to the maximum, and utilizes the cleaning of washing away realization NF membrane of the pure water to film.Nanofiltration
Film forbids stored dry, it is necessary to assure has water in putamina, if not used for some reason more than 70h, should be soaked in NF membrane clean
In water, if long-term leave unused must be sealed up for safekeeping by NF membrane requirement storage mode.
The double property dissolving humic acid extraction units of the hydrophilic-hydrophobic are disposable filter membrane using filter membrane, and filter membrane needs to be resistant to
By 0.2-0.4mol/L strong acid, filter membrane is stored and is used as required, but the siliceous filter membrane such as unusable glass fiber filter.
A series of detailed description described above is illustrated only for the feasibility embodiment of the present invention,
They are not to limit the scope of the invention, in the knowledge that the technical field those of ordinary skill has
Interior, the various change made under the premise of present inventive concept is not departed from all belongs to the scope of protection of the present invention.
Claims (8)
1. a kind of double property humic acid extraction equipments of hydrophilic-hydrophobic in water body, including raw water feed unit, pretreatment unit, nanofiltration
Upgrading unit, acid-base value adjust the double property dissolving humic acid extraction units of unit, water tank, general control system and hydrophilic-hydrophobic；
The nanofiltration upgrading unit includes nano-filtration unit, high-pressure pump, the first dissolved organic carbon on-line monitoring probe and the second dissolving
Organic carbon on-line monitoring probe；Wherein nano-filtration unit includes NF membrane and stainless steel putamina, and the aperture value of the NF membrane is
1-2nm；
The first dissolved organic carbon on-line monitoring probe is set on the nano-filtration unit concentrated water exit, and the second dissolved organic carbon exists
Line monitoring probe is at the wastewater outlet of nano-filtration unit；
The nano-filtration unit is equipped with liquid-inlet, concentrated water outlet and wastewater outlet；The liquid-inlet passes through high-pressure pump and water tank
Connection, the concentrated water outlet are connect with water tank, and the waste water is discharged by pipeline；It is equipped between the nano-filtration unit and high-pressure pump
Security valve, concentrated water outlet are equipped with security valve；
The acid-base value adjusts unit and includes pH sensors, blender, metering dosing pump, acid solution chemical tank；The pH sensings
Device is set in water tank, and the metering dosing pump is set between acid solution chemical tank and water tank, measure the entrance of dosing pump respectively with acid
The outlet connection of liquid chemical tank, the outlet for measuring dosing pump is connect with water tank；
The double property dissolving humic acid extraction units of the hydrophilic-hydrophobic include liquid memory, filter, vacuum pump and elution dress
It puts；The filter inlet is connect with the outlet of the water tank；
The filter outlet is connect with liquid memory entrance；The filter include sample room, filter membrane, and using sand core as
Filter membrane supporter；The aperture value range of the filter membrane is 0.1-0.7 μm；
The outlet of the elution device is connect with filter inlet；The vacuum pump is connect with the liquid memory.
2. the double property humic acid extraction equipments of hydrophilic-hydrophobic in water body as described in claim 1, which is characterized in that the water tank
Using acid resisting material, it is equipped with sealing cover above, it is interior to be equipped with blender, liquid level sensor and pH sensors；The sealing cover
End face be equipped at least five through-hole；Pipeline between the water tank and the filter gos deep into water tank, is sealing at the top of pipeline
Structure, duct wall are equipped with the hole that multiple apertures are 50 μm, and the minimum altitude in hole is controlled at the 1/10 of tank height, described to stretch into
Tank pipe is externally provided with filter mantle, and the aperture of the filter mantle is 100 μm.
3. the double property dissolving humic acid extraction equipments of hydrophilic-hydrophobic in water body as described in claim 1, which is characterized in that described pre-
Processing unit includes level-one precision micro-filtration filter, two level precision micro-filtration filter；Precision Filter element in level-one precision micro-filter
Aperture for 1 μm, the aperture of precision Filter element is 0.45 μm in two level precision micro-filtration filter；The level-one precision micro-filtration filter
Entrance and the outlet of self priming pump connect, the outlet of level-one precision micro-filtration filter and the entrance of two level precision micro-filtration filter connect
It connects, the outlet of two level precision micro-filtration filter is connect with water tank.
4. the double property humic acid extraction equipments of hydrophilic-hydrophobic in water body as described in claim 1, which is characterized in that the master control
System includes control unit and touch screen device, and described control unit is connect with touch screen device, and described control unit is passed with self priming pump, liquid level
Sensor, pH sensors, metering dosing pump, high-pressure pump adjust unit with acid-base value and connect；Liquid level sensor is equipped in the water tank
With pH sensors；PH sensors are equipped with lifting platform.
5. carry out hydrophilic-hydrophobic using the double property humic acid extraction equipments of hydrophilic-hydrophobic in any water bodys of claim 1-4
The method of double property dissolving humic acid extractions, which is characterized in that it includes the following steps：
(1) start the general supply start button of general control system；
(2) start self-priming pump start button, self priming pump draws raw water by pipeline, and the filter bag of self priming pump front end carries out raw water
Preliminary filtering, the raw water after filtering is by the level-one precision micro-filtration filter being pressurized into pretreatment unit of self priming pump to original
Water is once filtered, and the raw water after tentatively filtering enters two level precision micro-filtration filter and carries out secondary filter；After filtering
Raw water enters water tank by pipeline；When the water level in water tank reaches 4/5 tank height, self priming pump is stopped；
(3) raw water in water tank is pressurized through high-pressure pump and enters nanofiltration upgrading unit by pipeline, and NF membrane can be to day in raw water
Right dissolved organic matter is concentrated, and obtains waste water and concentrated water；By the direct discharging of waste water of NF membrane, concentrated water is recycled into water
Case when the content of organic carbon that the dissolved organic carbon on-line monitoring probe in water tank measures reaches preset value, stops
Only concentrate；
(4) start acid-base value and adjust unit, metering dosing pump, which receives pH sensor signals and starts acid solution, adds in program, by from acid
Liquid chemical tank extracts acid solution and injects non-oxidizable acid solution into water tank by acid-resistant pipeline, while stirring motor starts in water tank,
So that acid solution and concentrated water uniformly mix, until reaching preset pH value, the program stopped work of metering dosing pump acid liquid；
(5) after stirring for 24 hours, the outlet valve of water tank is opened, while start vacuum pump, is pressed by vacuum pump, it is dense in water tank
Water is by the way that in solution strainer influent reservoir, the double property dissolving humic acid of hydrophilic-hydrophobic are trapped within above filter membrane, impurity
Influent reservoir；
(6) after completing filtering, the outlet valve of water tank is closed, the outlet valve of elution device is opened, is pressed by vacuum pump, drenched
Pure water in cleaning device is rinsed filter membrane by pipeline influent reservoir；After the completion of flushing, in liquid memory
Liquid direct emission is fallen, and the organic matter stayed on filter membrane dissolves humic acid for the double property of hydrophilic-hydrophobic of required extraction.
6. the double property humic acid extracting methods of hydrophilic-hydrophobic in water body as claimed in claim 5, which is characterized in that nano-filtration unit is given up
The discharge line of water is equipped with speed governing valve, and the pipeline that the nano-filtration unit is connect with the water tank is equipped with speed governing valve, NF membrane
The wastewater flow rate of discharge and the ratio of the concentrated water amount of discharge are 1: 9-9: 1.
7. the double property humic acid extracting methods of hydrophilic-hydrophobic in water body as claimed in claim 5, which is characterized in that the acid-proof pipe
The degree in road can bear the non-oxidizing acid of 10mol/L；Nitration mixture concentration range in the water tank for 0.001-1mol/L hydrochloric acid and
0.1-0.5mol/L hydrofluoric acid；The preset value of the pH is 0.5-3.
8. the double property humic acid extracting methods of hydrophilic-hydrophobic in water body as claimed in claim 5, which is characterized in that the high-pressure pump
Front end is equipped with pressure gauge and security valve.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627008A (en) * | 2013-11-06 | 2014-03-12 | 上海晶宇环境工程有限公司 | Technology and special device for extracting humic acids from landfill leachate |
| CN103626314A (en) * | 2013-11-06 | 2014-03-12 | 上海晶宇环境工程有限公司 | Technology for treating nanofiltration concentrated solution of garbage leachate and special device |
| CN203668285U (en) * | 2013-11-06 | 2014-06-25 | 上海晶宇环境工程有限公司 | Special device for a technology of humic acid extraction from landfill leachate |
| CN105111464A (en) * | 2015-09-16 | 2015-12-02 | 中国环境科学研究院 | Method for graded extraction of humic acid in soil |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627008A (en) * | 2013-11-06 | 2014-03-12 | 上海晶宇环境工程有限公司 | Technology and special device for extracting humic acids from landfill leachate |
| CN103626314A (en) * | 2013-11-06 | 2014-03-12 | 上海晶宇环境工程有限公司 | Technology for treating nanofiltration concentrated solution of garbage leachate and special device |
| CN203668285U (en) * | 2013-11-06 | 2014-06-25 | 上海晶宇环境工程有限公司 | Special device for a technology of humic acid extraction from landfill leachate |
| CN105111464A (en) * | 2015-09-16 | 2015-12-02 | 中国环境科学研究院 | Method for graded extraction of humic acid in soil |
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