CN106496592A - For extracting the equipment of hydrophobic humic acid in water body - Google Patents
For extracting the equipment of hydrophobic humic acid in water body Download PDFInfo
- Publication number
- CN106496592A CN106496592A CN201610920299.1A CN201610920299A CN106496592A CN 106496592 A CN106496592 A CN 106496592A CN 201610920299 A CN201610920299 A CN 201610920299A CN 106496592 A CN106496592 A CN 106496592A
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- acid
- tank
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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 invention provides a kind of equipment for extracting hydrophobic humic acid in water body is used for the equipment for extracting hydrophobic humic acid in water body, including raw water feed unit, pretreatment unit, nanofiltration upgrading unit, acid-base value adjustment unit, organic matter extraction unit, the first water tank, general control system, the second water tank, pH value automatic adjustment unit and humic acid extraction unit；Wherein, the humic acid extraction unit includes the second elution device, liquid memory, filter and vavuum pump；The outlet respectively with second water tank of the entrance of the filter, the outlet of second elution device are connected, and the outlet of the filter is connected with liquid memory entrance；Humic acid is separated with other Dissolved Organic Matters by membrane filtration in humic acid extraction unit, then purified by elution device drip washing, extract the humic acid of high concentration.A kind of device structure for extracting hydrophobic humic acid in water body that the present invention is provided is simple, high degree of automation, easy to operate.
Description
Technical field
A kind of the present invention relates to environmental technology field, more particularly to equipment for extracting hydrophobic humic acid in water body.
Background technology
DOM is to be mixed by the class natural macromolecular organic matter that aperture span is 0.5 μm of filter membrane
Thing, it change with space-time and source from animals and plants secretion and its Residue decay product, the Nomenclature Composition and Structure of Complexes.Dissolving is organic
Matter mainly includes the acidic materials such as humic acid, fulvic acid, and the acidic materials molecular weight such as humic acid, fulvic acid is big, it is difficult to drop
Solution, is the main component in DOM, by extensive concern.In addition, humic acid, particularly hydrophobicity dissolve humic acid to having
The environmental behaviour of organic pollutants has important impact.Research shows, the phenolic hydroxyl group that contains in humic acid, carbonyl, aromatic radical
Etc. can interact with the heavy metal and organic matter in water, and then realize to pollutant conversion in the environment, migration
And home to return to.In water body, content of humic acid is low, and in fresh water, content is generally 1-3mg/L, and in seawater, content is generally 0.1-0.5mg/
How L, realize that the humic acid for efficiently extracting high concentration from substantial amounts of fresh water or Marine water is the problem of urgent need to resolve.
Chinese invention (application number：201310548129.1, title：From percolate the technique of extracted humic acid and
Special purpose device) a kind of technique of extracted humic acid from percolate and special purpose device is disclosed, its technique includes following step
Suddenly：
(1) raw water is passed through pretreatment system carries out water quality adjustment so as to which pH value is between 4-9, oxidation-reduction potential ORP
In the range of 150-250mV, it is beneficial to concentrating and separating of the material film to humic acid, so as to improve the service life of material film；
(2) it is rotten plant using membrane separating method by pretreated for step (1) water outlet under the pressure condition of 10-30bar
Acid is trapped within concentrate, forms humic acid dope, is finally given the preprocessed aqueous concentration of concentration ratio and is improved 30-60 times
Humic acid dope.
The special purpose device of present invention extracted humic acid technique from percolate, including raw water box (1), raw water box (1)
Water side is connected to pretreatment system (2), intake pump (3) is housed, in advance on raw water box (1) and pretreatment system (2) connecting line
Processing system (2) output end is connected with accurate filter (4), and accurate filter (4) output end is connected with material membrane module (5),
High-pressure pump (6) is housed on accurate filter (4) and material membrane module (5) connecting line, the concentrate of material membrane module (5) goes out
Mouth of a river connection collection box (7), permeate delivery port are connected to product water tank (8).
The present invention can extract the humic acid dope of high concentration, but the be suitable for water body of the present invention is narrow, it is impossible to will
Humic acid is completely separated with fulvic acid, and can not realize Automated condtrol, and inconvenient operation, exploitativeness be not good.
Content of the invention
In order to efficiently separate humic acid and fulvic acid, and extracted humic acid is used, the invention provides a kind of
For extracting the equipment of hydrophobic humic acid in water body, seawater or the humic acid in fresh water raw water effectively can be easily extracted.
In order to solve above-mentioned technical problem, a kind of equipment for extracting hydrophobic humic acid in water body of the present invention, including
Raw water feed unit, pretreatment unit, nanofiltration upgrading unit, acid-base value adjustment unit, organic matter extraction unit, the first water tank,
General control system, the second water tank, pH value automatic adjustment unit and humic acid extraction unit；
The pH value automatic adjustment unit includes pH sensors, the first acid solution chemical tank, the second acid solution chemical tank and dosing
Pump；, in second water tank, the first acid solution chemical tank and the second acid solution chemical tank are arranged side by side for the pH sensors
Arrangement, the outlet of the first acid solution chemical tank, the outlet of the second acid solution chemical tank by dosing pump with second water tank
Connection；
The humic acid extraction unit includes the second elution device, liquid memory, filter and vavuum pump；The filtration
The outlet respectively with second water tank of the entrance of device, the outlet of second elution device are connected, the outlet of the filter
It is connected with liquid memory entrance；The filter includes sample room, filter membrane and core, the filter membrane be placed in the sample room it
Interior, and using the core as filter membrane supporter；The aperture span of the filter membrane is 0.1-0.7 μm；The vavuum pump
Outlet is connected with the liquid memory.
Preferably, the raw water feed unit adopts self-priming water supplying pump, raw water to be seawater or fresh water, the turbidity of raw water quality
Within 100NTU, within 1000mg/l, electrical conductivity value is within 40000 μ S/cm for the value of TOC；The front end of self priming pump
Filter bag is provided with, the aperture of the filter bag is 10 μm.
Preferably, the pretreatment unit includes one-level precision micro-filtration filter and two grades of accurate micro-filtration filters, one-level
In accurate micro-filter, the aperture of precision Filter element is 1 μm, and in two grades of accurate micro-filters, the aperture of precision Filter element is 0.45 μm；Institute
State the one-level precision entrance of micro-filter to be connected with the outlet of self priming pump, the outlet of one-level precision micro-filter is micro- with two grades of precisions
The entrance connection of filter, the outlet of two grades of accurate micro-filters are connected with the first water tank.
Preferably, one-level, two grades of precision Filter elements adopt polypropylene filter core, precision Filter element to need to change in time, can keep away
Exempt from blocking and excessive contaminants cooperating microorganisms.
Preferably, first water tank adopts acid resisting material, and which is provided with closure above, is provided with agitator, liquid level in which
Sensor and pH sensors；The end face of the closure is provided with least 5 through holes；First water tank is filled with the adsorption and enrichment
Pipeline between putting is stretched in water tank, is sealing structure at the top of pipeline, and duct wall is provided with the hole that multiple apertures are 50 μm, and hole is most
Low clearance is controlled at the 1/10 of tank height, and the tank pipe that stretches into is externally provided with filter mantle, and the aperture of the filter mantle is
100μm.
Preferably, second water tank adopts acid resisting material, and which is provided with closure above, and lower end is funnel shaped, in which
It is provided with agitator, liquid level sensor and pH sensors；The end face of the closure is provided with least 5 through holes；Second water tank
Go deep in water tank with the pipeline between the filter, be sealing structure at the top of pipeline, it is 50 μm that duct wall is provided with multiple apertures
Hole, the minimum altitude in hole controlled at the 1/10 of tank height, and the tank pipe that stretches into is externally provided with filter mantle, the filtration
The aperture of cover is 100 μm；Second water tank is provided with nitrogen feedway, prevents humic acid from aoxidizing in the basic conditions.
Preferably, the nanofiltration upgrading unit includes that nano-filtration unit, high-pressure pump and the first dissolved organic carbon on-line monitoring are visited
Head and the second dissolved organic carbon on-line monitoring are popped one's head in；Wherein nano-filtration unit includes NF membrane and stainless steel putamina, the NF membrane
Aperture value be 1-2nm；
The first dissolved organic carbon on-line monitoring probe is located at 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.
Preferably, the nano-filtration unit is provided with original water inlet, concentrated water outlet and waste liquid outlet；The original water inlet is by height
Press pump is connected with water tank, and the concentrated water outlet is connected with the first water tank；The nano-filtration unit concentrated water outlet is all provided with wastewater outlet
There is security valve, in raw water concentration process, the nano-filtration unit concentrated water and waste water dissolved organic carbon on-line monitoring probe detect numerical value
When difference is less than preset value, the security valve is opened, and illustrates that now system cannot be concentrated.
Preferably, acid-base value adjustment unit includes pH sensors, agitator, metering dosing pump and acid solution chemical tank；Institute
PH sensors are stated in the first water tank, the metering dosing pump is located between the first water tank and acid solution chemical tank, measures dosing
The entrance of pump is connected with the outlet of acid solution chemical tank, and the outlet for measuring dosing pump is connected with the first water tank.
Preferably, the organic matter extraction unit includes adsorption and enrichment device, the first elution device and alkali lye chemical tank, the
One elution device and alkali lye chemical tank are arranged in juxtaposition；The outlet of the first elution device, the outlet of alkali lye chemical tank with absorption
The entrance connection of enriching apparatus, the entrance of the adsorption and enrichment device are connected with the outlet of the first water tank, adsorption and enrichment device
Outlet is connected with the second water tank, and its bottom is provided with the waste cock of flushing liquor.
Preferably, the adsorption and enrichment device includes adsorption column and filler, and described filler is in the adsorption column, described
One or more for XAD-8 resins, DAX-8 resins and XAD-7 resins of filler.
Preferably, the general control system includes that control unit and touch screen device, described control unit are connected with touch screen device, institute
State control unit to be connected with self priming pump, liquid level sensor, pH sensors, measuring pump, high-pressure pump and pH value automatic adjustment unit；Institute
Liquid level sensor and pH sensors are stated in first water tank and the second water tank, the pH sensors are provided with lifting platform, must
Can rise to outside water tank when wanting；1/5-4/5 of the height of water level control of first water tank in tank height.
Present invention also offers a kind of utilization carries out humic acid extraction for extracting the equipment of hydrophobic humic acid in water body
Method, it is characterised in which comprises the 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
Tentatively filtered, the one-level precision micro-filtration filter that the raw water after filtration is entered in pretreatment unit by the supercharging of self priming pump
Raw water is once filtered, the raw water after once filtering enters two grades of accurate micro-filtration filters and carries out secondary filtration；Cross
Raw water after filter enters the first water tank by pipeline；When water level in first water tank reaches 4/5 tank height, self priming pump stops work
Make；
Raw water in (3) first water tanks enters into nano-filtration unit through high-pressure pump supercharging by pipeline, and NF membrane can be to raw water
In natural DOM concentrated, obtain waste water and concentrated water；Through the direct discharging of waste water of NF membrane, concentrated water circulate into
Enter the first water tank, when the content of the organic carbon that the TOC on-line monitorings probe being located in the first water tank is determined reaches preset value, stop
Only concentrate；
(4) start acid-base value adjustment unit, metering dosing pump receives the startup of pH sensor signals and passes through from acid solution chemical tank
Acid-resistant pipeline injects acid solution in the first water tank, while stirring motor starts in the first water tank so that acid solution is uniformly mixed with concentrated water
Close, until reaching default pH value, metering dosing pump and the first water tank stirring motor quit work；
(5) complete the concentrated water after pH value is adjusted and adsorption and enrichment device is flowed into by pipeline, after the completion of absorption, open first and drench
The outlet valve of cleaning device, the pure water in the first elution device is by pipe flushing adsorption and enrichment device, and opens adsorption and enrichment
Switch below device, flushing waste are discharged by pipeline, complete the flushing of adsorption and enrichment device, close waste liquid waste cock；
(6) after completing the flushing of adsorption and enrichment device, the outlet valve of the first elution device is closed, opens alkali lye chemical tank
Outlet valve, alkali lye chemical tank inject alkali lye by alkaline-resisting pipeline in adsorption and enrichment device, by the natural dissolving of resin adsorption
Organic matter is desorbed in the presence of alkali lye, and efflux flows into the second water tank through piping；
(7) pH automatic adjustment units are started, pH automatic adjustment units receive the detection signal startup acid solution of pH sensors and add
Enter program, press through dosing pump, acid solution is extracted from the first acid solution chemical tank and injected in the second water tank by the first acid-resistant pipeline
Non-oxidizable acid solution, while stirring motor starts in the second water tank so that acid solution and organic matter uniformly mix, default until reaching
PH value, first passage acid liquid program stopped work；
Press through dosing pump, hydrofluoric acid is extracted from the second acid solution chemical tank, by the second acid-resistant pipeline to the second water tank
Middle injection hydrofluoric acid, the liquid in the second water tank reach default hydrofluoric acid concentration, dosing pump and the second water tank stirring horse
Reach and quit work；
(8) outlet valve of the second water tank is opened, while starting vavuum pump, is pressed by vavuum pump, in the second water tank
During organic matter is through filter influent holder, by membrane filtration, hydrophobic humic acid is left on above filter membrane organic matter, miscellaneous
Mass flow enters in liquid memory；
(9) after organic matter completes to filter, the outlet valve of the second water tank is closed, opens the outlet valve of the second elution device
Door, the pure water in the second elution device are rinsed to filter membrane by pipeline inflow filter；After the completion of flushing, fluid storage
Liquid in device is directly emitted, the humic acid that the organic matter stayed on filter membrane is extracted for needed for.
Preferably, the discharge line of the nano-filtration unit waste water is provided with flow speed control valve, and concentrated water discharge line is provided with speed governing
Valve, the wastewater flow rate that nano-filtration unit is discharged are 1 with the ratio of the concentrated water amount that discharges:9-9:1.
Preferably, the degree of the acid-resistant pipeline and the first acid-resistant pipeline can bear the strong acid for being 10mol/L；The alkali lye
NaOH of the alkali lye in chemical tank for 0.1mol/L；The degree of the alkaline-resisting pipeline can bear the highly basic of 0.1mol/L；Described
The degree of the second acid-resistant pipeline can bear the hydrofluoric acid of 6mol/L；Nitration mixture concentration range in second water tank is 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 pressure value of the high-pressure pump is 0-1.0Mpa, and the front end of high-pressure pump is provided with pressure gauge and security valve,
In raw water concentration process, when before the high-pressure pump, pressure is more than preset value, the security valve is opened, it is to avoid high-pressure pump is damaged and managed
Road Decrepitation Phenomena.
Preferably, general control system adopts low-voltage distribution, and the electric pressure of power supplying and distributing equipment is 220VAC, and sets low pressure and match somebody with somebody
Electric cabinet, powers to process system power-equipment；Power switch in control system is protected with electrical control cubicles gate interlock, can be reached anti-
Dirt, rapid heat dissipation and easy-to-install effect.
Preferably, the front end of the self priming pump is provided with safety valve, is provided with liquid level sensor in the water tank, and its water level is in water
During 4/5 volume of case, the safety valve is opened, and self priming pump shuts down, it is to avoid cistern water level is too high.
The beneficial effect comprise that compared with prior art：
(1) provided by the present invention for extracting the simple device structure of hydrophobic humic acid in water body, high degree of automation, behaviour
Facilitate, extract highly purified humic acid, preferably utilize extracted humic acid；
(2) the one-level precision Filter element aperture in the present invention is 1 μm, and two grades of precision Filter element apertures are 0.45 μm, more effectively
The impurity such as suspension of larger particles in water has been filtered, scuffing, blocking and height that particle debris are caused to film has preferably been avoided
Pressure impact；
(3) in this device, the whole process of pH value is full automatic, saves labour, reduces production cost, modulation
PH value accuracy rate higher；
(4) waste liquid amount that discharges in nano-filtration unit in nanofiltration separation upgrading unit with the optimum ratio of the concentrated water amount that discharges is
2:1-1:2, and then waste liquid discharge can be avoided excessive or the too small injury for causing film or unit efficiency reduction；
The bottom of (5) first water tanks and the second water tank is funnel shaped, and stretches into the pipeline in water tank and be externally provided with filtration
Cover, not only contributes to the outflow of organic matter, is also beneficial to precipitate the impurity in organic matter；Organic matter passes through membrane filtration, not only
The impurity in organic matter can be removed, highly purified humic acid can also be extracted.
Description of the drawings
Fig. 1 is a kind of structural representation for extracting the equipment of hydrophobic humic acid in water body of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail.
Shown in ginseng Fig. 1, Fig. 1 is the process chart that the present invention is used for extracting the equipment of hydrophobic humic acid in water body.This
The humic acid extraction element of bright offer, is adjusted including raw water feed unit, pretreatment unit, nanofiltration upgrading unit, acid-base value single
Unit, organic matter extraction unit, the first water tank 7, general control system 4, the second water tank 15, pH value automatic adjustment unit and humic acid are carried
Take unit；Wherein raw water feed unit mainly includes self priming pump 1；Pretreatment unit includes one-level precision micro-filtration filter 2 and two
The accurate micro-filtration filter 3 of level；Nanofiltration upgrading unit includes nano-filtration unit 9, high-pressure pump 8 and dissolved organic carbon on-Line Monitor Device,
Wherein nano-filtration unit 9 includes NF membrane and stainless steel putamina；Acid-base value adjustment unit includes PH sensors, metering 5 and of dosing pump
Acid solution medicament dosing tank 6；Organic matter extraction unit includes adsorption and enrichment device 14, alkali lye chemical tank 13, the first elution device 12；
PH value automatic adjustment unit includes dosing pump, the first acid solution chemical tank 16 and the second acid solution chemical tank 17；Humic acid extraction unit
Including the second elution device 18, filter, vavuum pump 22 and liquid memory 23, wherein filter includes sample room 19, filter membrane
20 and core 21, filter membrane 20 is located in sample room 19, and is supported by core 21；General control system 4 is main using automatically controlling, its
In collection control operate in switch board unification carry out, can make whole system realize automatically control operation and manually operated.
The entrance of wherein one-level precision micro-filtration filter 2 is connected with the outlet of self priming pump 1, one-level precision micro-filtration filter 2
Outlet be connected with the entrance of two grades of accurate micro-filtration filters 3, the outlet of two grades of precision micro-filtration filters 3 is connected with the first water tank 7
Connect；Metering dosing pump 5 is located between the first water tank 7 and acid solution chemical tank 6, measures the entrance and acid solution chemical tank 6 of dosing pump 5
Outlet connection, the outlet for measuring dosing pump 5 are connected with the first water tank 7；Nano-filtration unit 10 is provided with original water inlet, concentrated water outlet and gives up
Liquid is exported, and original water inlet is connected with the first water tank 7 by high-pressure pump 8, and concentrated water outlet is connected with the first water tank 7；Alkali lye chemical tank
13 outlet, the outlet of the first elution device 12 are connected with the entrance of adsorption and enrichment device 14；The entrance of adsorption and enrichment device 14
Outlet with the first water tank 7 is connected, and the outlet of adsorption and enrichment device 14 is connected with the second water tank 15；Set above second water tank 17
There is semitight lid, bottom is funnel shaped, and inside is provided with agitator, pH probes and nitrogen inlet duct and gas outlet；Liquid is stored up
The entrance of storage 23 is connected with the outlet of filter, and the entrance of filter is connected with the outlet of the second water tank 15, vavuum pump 22
Air entry is placed in the cavity of liquid memory 23；PH automatic adjustment units are connected with pH sensors in the second water tank are located at, the
One acid solution chemical tank 16 is exported, the outlet of the second acid solution chemical tank 17 is connected with the second water tank 15 by dosing pump；Master control
System 4 includes that control unit and touch screen device, control unit are connected with touch screen device, control unit and self priming pump 1, liquid level sensor,
PH sensors, metering dosing pump 5 and high-pressure pump 8 connect.
The raw water humic acid extraction element that the present invention is provided, its raw water water source are seawater or fresh water, the water quality requirement of raw water
For water quality turbidity within 100NTU, within 1000mg/l, electrical conductivity value is within 40000 μ S/cm for the value of TOC；
The front end of self priming pump is provided with filter bag, and the aperture of filter bag is 10 μm.
General control system adopts low-voltage distribution, and the electric pressure of power supplying and distributing equipment is 220VAC, and sets low-voltage distribution cabinet, to
Process system power-equipment is powered.In addition, in control system, be equipped with the switch board of independent operation, and electric switch and electric unit
Part is all concentrated in switch board, and power switch and electrical control cubicles gate interlock are protected, and can reach dust-proof, rapid heat dissipation and easy-to-install
Effect.
General supply and start button is first turned on, makes whole system in running order, self priming pump 1 is drawn by pipeline former
Water, raw water are tentatively filtered by being located at the filter bag that self priming pump front end aperture is 10 μm, the raw water after tentatively filtering
The one-level precision micro-filtration filter 2 that the supercharging of self priming pump 1 is entered in pretreatment unit is once filtered to raw water, through once mistake
Raw water after filter enters two grades of accurate micro-filtration filters 3 and carries out secondary filtration, the wherein filter in one-level precision micro-filtration filter 2
Core is 1 μm, and the filter core in two grades of accurate micro-filtration filters 3 is 0.45 μm, and this kind of filter core diameter is arranged and can preferably filter water
The impurity such as the suspension of middle larger particles, increase water quality, the scuffing that more effectively avoids particulate contaminant from causing film, blocking and
Impacting with high pressure.In addition, precision Filter element needs to change in time, it is to avoid block and cross multi-pollutant and gather cooperating microorganisms.
Raw water after two-stage precise filtering device is filtered enters the first water tank 7 by connecting pipe, in the first water tank 7
Liquid level sensor to water tank in water level detect that, when water level reaches the 4/5 of water tank, liquid level sensor is to master control system
System sends liquid level signal, after general control system receives liquid level signal, sends control signal to self priming pump so as to quit work, i.e.,
Raw water is injected in stopping to the first water tank.
Raw water in first water tank 7 is pressurizeed the NF membrane that enters in nano-filtration unit 9 through high-pressure pump 8, and NF membrane can will be light
Concentrated water and waste water is separated in water and seawater, is expelled directly out through the waste water of the saliferous and small molecule organic matter of NF membrane, in nanofiltration
The waste liquid outlet of unit 9 is provided with flow speed control valve, can adjust the speed that waste liquor stream goes out NF membrane, and its speed adjustable range is 0-
200L/h；It is back in the first water tank 7 through pipeline through the detached concentrated water of NF membrane, is connected with the first water tank 7 in nano-filtration unit 9
Pipeline is provided with flow speed control valve, can adjust the speed that concentrated stream goes out NF membrane, and its speed adjustable range is 0-200L/h；Waste water stream
The speed and concentrated stream for going out NF membrane goes out the speed value of NF membrane and is arranged in appropriate scope, the waste liquid for discharging NF membrane
Amount is 1 with the ratio of the concentrated water amount that discharges:9-9:1, its optimum ratio is 1:2-2:1, the excessive velocities because flowing out can be avoided
Or the injury that slowly NF membrane caused excessively or device efficiency reduce.Concentrated water water tank inlet can circulate concentration, so repeatedly, first
Water in water tank is fewer and feweri, the concentration more and more higher of the content of organic matter, when the dissolved organic carbon on-line determination device in water tank
When the organic carbon content of measure reaches preset value, stop concentration, close concentration systems.
During raw water is concentrated, avoid that cocnentration factor is too high as far as possible, cocnentration factor is higher, and saliferous rate and organic concentration are got over
Height, too high concentration can be damaged to NF membrane, therefore, the content of organic matter in concentrated water is controlled in below 10000mg/L.
The pipeline that nano-filtration unit concentrated water is discharged is provided with the first dissolved organic carbon on-line monitoring probe 11, and nano-filtration unit is discharged
The second dissolved organic carbon on-line monitoring probe 10 is provided with the pipeline of waste water, is visited by contrasting the first dissolved organic carbon on-line monitoring
11 and the numerical value of 10 detection of the second dissolved organic carbon on-line monitoring probe, it is possible to determine that NF membrane whether seepage；If i.e.
The numerical value difference of 10 detection of one dissolved organic carbon on-line monitoring probe 11 and the second dissolved organic carbon on-line monitoring probe is less than pre-
If during value, it is possible to determine that Seepage occurs in NF membrane.The exit of nano-filtration unit concentrated water and waste water is additionally provided with security valve, in original
In water concentration process, when the dissolved organic carbon difference of nano-filtration unit concentrated water and waste water is less than preset value, security valve is opened, and is now
System is out of service.
The front end of high-pressure pump 8 is provided 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 avoid high-pressure pump from causing the phenomenon that high-pressure pump burns when dallying；Work as high pressure
When pressure before pump is more than preset value, security valve is opened, and high-pressure pump can be avoided to damage and pipeline burst phenomenon.
After raw water concentration terminates, start acid-base value adjustment unit.PH value needed for arranging in general control system 4, which sets
Fixed pH value is 0.5-3, and pH value is believed by and pH sensors that this pH sensor signal is delivered in water tank, pH sensors
Metering dosing pump 5 number is passed to, dosing pump startup is measured, the acid solution in acid solution chemical tank 6 is passed through by acidproof spy by supercharging
Different pipeline flows into the first water tank 7, while the stirring motor in the first water tank 7 starts so that acid solution and concentrated water uniformly mix, and carry out
PH value is adjusted, and when pH value reaches the value for pre-setting, metering dosing pump 5 and the first water tank stirring motor quit work.
The process that whole pH value is adjusted is full automatic, saves labour, reduces production cost, and the pH for modulating
The accuracy of value is higher, and the process efficiency of preparation is also higher.During pH is adjusted, using the water in the first water tank of stirring,
Flow into acid solution medicament therein uniformly to dissolve in water, the pH value of local can be avoided higher or low.
After the completion of pH value is adjusted, the outlet valve of the first water tank 7 is opened, and the concentrated water in the first water tank 7 flows into adsorption and enrichment
Device 14, the filler in adsorption and enrichment device to concentrated water in organic matter adsorb；After the completion of absorption, the first water tank 7 is closed
Outlet valve, open the opening valve of the first elution device 12, while open the waste liquid waste cock of adsorption and enrichment device 14,
Pure water in first elution device 12 is rinsed to adsorption and enrichment device 14 by pipeline, is effectively removed miscellaneous in organic matter
Matter, the waste liquid of flushing are discharged by waste liquid discharge line.
The outlet valve of the first elution device 12 after the completion of flushing, is closed, waste liquid waste cock is closed；Open alkali lye medicament
The outlet valve of case 13, the alkali lye in alkali lye chemical tank 13 flow through adsorption and enrichment device 14, adsorption and enrichment device 14 by pipeline
In polymeric adsorbent absorption the interaction of organic matter and alkali lye after desorb, the organic matter after desorption is by pipeline inflow the
In two water tanks 15.
Adsorption and enrichment device 14 includes that adsorption column and filler, wherein filler use XAD-8 trees located at the interior of adsorption column
One or more of fat, DAX-8 resins and XAD-7 resins, can adsorb the DOM composition such as humic acid, fulvic acid, obtain
Take the higher organic matter liquid of concentration.
PH automatic adjustment units are opened, the signal of detection is sent to pH adjustment units, dosing pump startup acid solution by pH probes
Addition program, presses through dosing pump, extracts acid solution by the first acidproof special pipeline to the second water from the first acid solution chemical tank 16
Non-oxidizable acid solution is injected in case 15, while the stirring motor in the second water tank 15 starts so that acid solution and organic matter are uniformly mixed
Close, carry out pH value regulation, until pH value reaches the value for pre-setting, first acid liquid program stopped work of dosing pump；Dosing
Pump passes through to extract hydrofluoric acid from the second acid solution chemical tank 17, injects hydrogen by the second acidproof special pipeline in the second water tank 15
Fluoric acid, until reaching the concentration of default hydrofluoric acid, dosing pump quits work.PH sensors in second water tank 15 are provided with lifting
Platform, after the completion of pH value is adjusted, lifting platform can rise to pH sensors on the water surface.
Pipeline between second water tank 15 and filter gos deep in water tank, is sealing structure at the top of pipeline, and duct wall is provided with
Multiple apertures are 50 μm of hole, and at the 1/10 of tank height, the tank pipe that stretches into is externally provided with for the minimum altitude control in hole
Filter mantle, the aperture of the filter mantle is 100 μm, is more beneficial for precipitating the impurity in concentrated water；Nitrogen is additionally provided with second water tank
Feedway, can prevent humic acid from aoxidizing in the basic conditions.
After humic acid solution in second water tank 15 is stirred 24 hours, the outlet valve of the second water tank 15 is opened, while opening
Dynamic vavuum pump 22, is pressed by vavuum pump 22, during the organic matter in the second water tank 15 is through filter influent holder 23, is had
Machine matter is filtered by filter, and hydrophobic humic acid is left on above the filter membrane 20 in filter, and impurity flows into liquid memory 23
In.
After organic matter completes to filter, the outlet valve of the second water tank 15 is closed, open the outlet valve of the second elution device 18
Door, the pure water in the second elution device 18 flow through filter by pipeline, filter membrane 20 are rinsed, and the waste liquid after flushing is flowed into
Liquid memory 23；After the completion of flushing, the liquid in liquid memory 23 is directly emitted, and the organic matter stayed on filter membrane is institute
The humic acid that need to be extracted.
Humic acid is extracted after terminating, and closes the discharge outlet of the first water tank, and the pure water in the first elution device pours the first water into
Case, starts concentration, concentrated water valve is reached maximum, washes away the cleaning for realizing NF membrane using pure water to film.NF membrane is forbidden to do
Dry storage, it is necessary to assure have water in putamina, if not using more than 70h for some reason, should be soaked in NF membrane in clean water, if long
Phase leaves unused and must seal up for safekeeping by NF membrane requirement storage mode.
The water body hydrophobic dissolving humic acid extraction unit uses filter membrane for disposable filter membrane, and filter membrane needs to be resistant to 0.2-
0.4mol/L strong acid, filter membrane are stored on request and are used, but the siliceous filter membrane such as unusable glass fiber filter.
A series of detailed description mentioned above is only for illustrating for the feasibility embodiment of the present invention,
They are not to limit the scope of the invention, in the ken that the technical field those of ordinary skill possesses
Interior, the various change that makes on the premise of without departing from present inventive concept belongs to protection scope of the present invention.
Claims (10)
1. a kind of equipment for extracting hydrophobic humic acid in water body, concentrates including raw water feed unit, pretreatment unit, nanofiltration
Unit, acid-base value adjustment unit, organic matter extraction unit, the first water tank, general control system, the second water tank, pH value are automatically adjusted
Unit and humic acid extraction unit；
The pH value automatic adjustment unit includes pH sensors, the first acid solution chemical tank, the second acid solution chemical tank and dosing pump；Institute
PH sensors are stated in second water tank, the first acid solution chemical tank and the second acid solution chemical tank are arranged in juxtaposition,
The outlet of the first acid solution chemical tank, the outlet of the second acid solution chemical tank pass through company of the dosing pump with second water tank
Connect；
The humic acid extraction unit includes the second elution device, liquid memory, filter and vavuum pump；The filter
Entrance outlet respectively with second water tank, the outlet of second elution device are connected, the outlet of the filter and liquid
Body holder entrance connects；The filter includes that sample room, filter membrane and core, the filter membrane are placed within the sample room,
And using the core as filter membrane supporter；The aperture span of the filter membrane is 0.1-0.7 μm；The outlet of the vavuum pump
It is connected with the liquid memory.
2. the equipment for extracting hydrophobic humic acid in water body is used for as claimed in claim 1, it is characterised in that the pretreatment list
Unit includes one-level precision micro-filtration filter and two grades of accurate micro-filtration filters, the hole of precision Filter element in one-level precision micro-filtration filter
Footpath is 0.45 μm, and in two grades of accurate micro-filtration filters, the aperture of precision Filter element is 0.22 μm；The one-level precision micro-filtration filter
Entrance be connected with the outlet of self priming pump, the outlet of one-level precision micro-filtration filter is connected with the entrance of two grades of accurate micro-filtration filters
Connect, the outlet of two grades of accurate micro-filtration filters is connected with the first water tank.
3. the equipment for extracting hydrophobic humic acid in water body is used for as claimed in claim 1, it is characterised in that first water tank is adopted
With acid resisting material, which is provided with closure above, is provided with agitator, liquid level sensor and pH sensors in which；The closure
End face is provided with least 5 through holes；Pipeline between first water tank and the adsorption and enrichment device is stretched in water tank, pipeline top
Portion is sealing structure, and duct wall is provided with the hole that multiple apertures are 50 μm, and the minimum altitude in hole is controlled at the 1/10 of tank height,
The tank pipe that stretches into is externally provided with filter mantle, and the aperture of the filter mantle is 100 μm；
Second water tank adopts acid resisting material, and which is above provided with closure, and lower end is funnel shaped, be provided with which agitator,
Liquid level sensor and pH sensors；The end face of the closure is provided with least 5 through holes；Second water tank and the filter
Between pipeline stretch in water tank, be sealing structure at the top of pipeline, duct wall is provided with the hole that multiple apertures are 50 μm, hole minimum
At the 1/10 of tank height, the tank pipe that stretches into is externally provided with filter mantle, and the aperture of the filter mantle is 100 for highly control
μm；Second water tank is provided with nitrogen feedway, prevents humic acid from aoxidizing in the basic conditions.
4. the equipment for extracting hydrophobic humic acid in water body is used for as claimed in claim 1, it is characterised in that the nanofiltration concentration is single
Unit includes nano-filtration unit, high-pressure pump, the first dissolved organic carbon on-line monitoring probe and the second dissolved 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 located at the concentrated water exit of the nano-filtration unit, the second dissolved organic carbon
On-line monitoring probe is at the wastewater outlet of nano-filtration unit；
The nano-filtration unit is provided with original water inlet, concentrated water outlet and waste liquid outlet；The original water inlet passes through high-pressure pump and first
Water tank connects, and the concentrated water outlet is connected with the first water tank；The nano-filtration unit concentrated water outlet is equipped with security with wastewater outlet
Valve.
5. the equipment for extracting hydrophobic humic acid in water body is used for as claimed in claim 1, it is characterised in that acid-base value adjustment unit
Include pH sensors, agitator, metering dosing pump and acid solution chemical tank；The pH sensors are in the first water tank, described
Metering dosing pump is located between the first water tank and acid solution chemical tank, and the outlet of the entrance and acid solution chemical tank that measure dosing pump connects
Connect, the outlet for measuring dosing pump is connected with the first water tank.
6. the equipment for extracting hydrophobic humic acid in water body is used for as claimed in claim 1, it is characterised in that the organic matter is extracted
Unit includes adsorption and enrichment device, the first elution device and alkali lye chemical tank, the first elution device and alkali lye chemical tank cloth arranged side by side
Put；The outlet of the first elution device, the outlet of alkali lye chemical tank are connected with the entrance of adsorption and enrichment device, the adsorption and enrichment
The entrance of device is connected with the outlet of the first water tank, and the outlet of adsorption and enrichment device is connected with the second water tank, and its bottom is provided with
The waste cock of flushing liquor；
The adsorption and enrichment device includes adsorption column and filler, and in the adsorption column, described filler is XAD-8 to described filler
One or more of resin, DAX-8 resins and XAD-7 resins.
7. in water body as claimed in claim 1, hydrophobic dissolving humic acid is extracted, it is characterised in that the general control system includes controlling
Unit processed and touch screen device, described control unit are connected with touch screen device, and described control unit is passed with self priming pump, liquid level sensor, pH
The connection of sensor, measuring pump, high-pressure pump and pH value automatic adjustment unit；The liquid level sensor and pH sensors are located at described first
In water tank；1/5-4/5 of the height of water level control of first water tank in tank height.
8. utilize the arbitrary described equipment for extracting hydrophobic humic acid in water body of claim 1-7 to carry out humic acid extraction
Method, it is characterised in which comprises the 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 carried out to raw water
Preliminary filtration, the one-level precision micro-filtration filter that the raw water after filtration is entered in pretreatment unit by the supercharging of self priming pump is to original
Water is once filtered, and the raw water after once filtering enters two grades of accurate micro-filtration filters and carries out secondary filtration；After filtration
Raw water by pipeline enter the first water tank；When water level in first water tank reaches 4/5 tank height, self priming pump quits work；
Raw water in (3) first water tanks enters into nano-filtration unit through high-pressure pump supercharging by pipeline, during NF membrane can be to raw water
Natural DOM is concentrated, and obtains waste water and concentrated water；Through the direct discharging of waste water of NF membrane, concentrated water is recycled into
One water tank, when the content of the organic carbon of the dissolved organic carbon on-line monitoring probe measure being located in the first water tank reaches preset value
When, stop concentration；
(4) start acid-base value adjustment unit, metering dosing pump receives pH sensor signals and starts from acid solution chemical tank by acidproof
Pipeline injects acid solution in the first water tank, while stirring motor starts in the first water tank so that acid solution is uniformly mixed with concentrated water, directly
Default pH value is reached, metering dosing pump and the first water tank stirring motor quit work；
(5) complete the concentrated water after pH value is adjusted and adsorption and enrichment device is flowed into by pipeline, after the completion of absorption, open the first drip washing dress
The outlet valve that puts, the pure water in the first elution device is by pipe flushing adsorption and enrichment device, and opens adsorption and enrichment device
The waste liquid waste cock of bottom, flushing waste are discharged by pipeline, complete the flushing of adsorption and enrichment device, are closed waste liquid discharge and are opened
Close；
(6) after completing the flushing of adsorption and enrichment device, the outlet valve of the first elution device is closed, opens the outlet of alkali lye chemical tank
Valve, alkali lye chemical tank inject alkali lye in adsorption and enrichment device by alkaline-resisting pipeline, organic by the natural dissolving of resin adsorption
Matter is desorbed in the presence of alkali lye, and efflux flows into the second water tank through piping；
(7) pH automatic adjustment units are started, pH automatic adjustment units receive the detection signal of pH sensors and start acid solution addition journey
Sequence, presses through dosing pump, extracts acid solution from the first acid solution chemical tank and injects non-oxygen in the second water tank by the first acid-resistant pipeline
The property changed acid solution, while stirring motor starts in the second water tank so that acid solution and organic matter uniformly mix, until reaching default pH
Value, first passage acid liquid program stopped work；
Press through dosing pump, hydrofluoric acid is extracted from the second acid solution chemical tank, noted by the second acid-resistant pipeline in the second water tank
Enter hydrofluoric acid, the liquid in the second water tank reaches default hydrofluoric acid concentration, dosing pump quits work；
(8) outlet valve of the second water tank is opened, while starting vavuum pump, is pressed by vavuum pump, organic in the second water tank
During matter is through filter influent holder, organic matter is left on above filter membrane by membrane filtration, hydrophobic humic acid, trash flow
Enter in liquid memory；
(9) after organic matter completes to filter, the outlet valve of the second water tank is closed, opens the outlet valve of the second elution device, the
Pure water in two elution devices is rinsed to filter membrane by pipeline inflow filter；After the completion of flushing, in liquid memory
Liquid is directly emitted, the humic acid that the organic matter stayed on filter membrane is extracted for needed for.
9. in water body as claimed in claim 8, hydrophobic dissolves humic acid extracting method, it is characterised in that the nano-filtration unit is given up
The discharge line of water is provided with flow speed control valve, and concentrated water discharge line is provided with flow speed control valve, wastewater flow rate and discharge that nano-filtration unit is discharged
Concentrated water amount ratio be 1:9-9:1.
10. in water body as claimed in claim 8, hydrophobic dissolves humic acid extracting method, it is characterised in that the acid-resistant pipeline
The strong acid for being 10mol/L can be born with the degree of the first acid-resistant pipeline；Alkali lye in the alkali lye chemical tank is 0.1mol/L's
NaOH；The degree of the alkaline-resisting pipeline can bear the highly basic of 0.1mol/L；The degree of second acid-resistant pipeline can bear 6mol/
The hydrofluoric acid of L；Nitration mixture concentration in second water tank is 0.001-1mol/L hydrochloric acid and 0.1-0.5mol/L hydrofluoric acid；Described
PH preset values are 0.5-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610920299.1A CN106496592B (en) | 2016-10-21 | 2016-10-21 | Equipment for extracting hydrophobic humic acid in water body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610920299.1A CN106496592B (en) | 2016-10-21 | 2016-10-21 | Equipment for extracting hydrophobic humic acid in water body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106496592A true CN106496592A (en) | 2017-03-15 |
| CN106496592B CN106496592B (en) | 2018-03-09 |
Family
ID=58318357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610920299.1A Expired - Fee Related CN106496592B (en) | 2016-10-21 | 2016-10-21 | Equipment for extracting hydrophobic humic acid in water body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106496592B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004325425A (en) * | 2003-04-28 | 2004-11-18 | Silk Kogei:Kk | Method of manufacturing standard powder sample of in-water fulvic acid |
| 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 |
| CN104230079A (en) * | 2013-06-19 | 2014-12-24 | 中国石油天然气股份有限公司 | Method for separating organic matters in reverse osmosis concentrated water |
| CN204346808U (en) * | 2015-01-08 | 2015-05-20 | 常州大学 | The pretreatment unit of low-concentration organic composition analysis in water |
| CN105777819A (en) * | 2016-05-10 | 2016-07-20 | 上海晶宇环境工程股份有限公司 | Process for extracting fulvic acid from garbage leachate membrane concentrated liquid and special device thereof |
-
2016
- 2016-10-21 CN CN201610920299.1A patent/CN106496592B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004325425A (en) * | 2003-04-28 | 2004-11-18 | Silk Kogei:Kk | Method of manufacturing standard powder sample of in-water fulvic acid |
| CN104230079A (en) * | 2013-06-19 | 2014-12-24 | 中国石油天然气股份有限公司 | Method for separating organic matters in reverse osmosis concentrated water |
| 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 |
| CN204346808U (en) * | 2015-01-08 | 2015-05-20 | 常州大学 | The pretreatment unit of low-concentration organic composition analysis in water |
| CN105777819A (en) * | 2016-05-10 | 2016-07-20 | 上海晶宇环境工程股份有限公司 | Process for extracting fulvic acid from garbage leachate membrane concentrated liquid and special device thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郭瑾 等: "松花江水中天然有机物的提取分离与特性表征", 《环境科学》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106496592B (en) | 2018-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106365354B (en) | Hydrophobicity dissolves humic acid extraction element in a kind of poisons in freshwater | |
| CN106336515B (en) | The equipment that water body fulvic acid is extracted in a kind of use two-stage resin combination | |
| CN106365353B (en) | Fulvic acid extraction element is dissolved in a kind of poisons in freshwater | |
| CN106477767B (en) | The equipment and its extracting method of fulvic acid in a kind of extraction poisons in freshwater | |
| CN106315925B (en) | Organic matter concentration purifying plant and preparation method thereof in poisons in freshwater | |
| CN106315924B (en) | DOM nanofiltration concentration purifying plant and method of purification in a kind of water body | |
| CN106336041B (en) | Counter-infiltration is combined the device for extracting fresh water fulvic acid with a grade resins | |
| WO2018072280A1 (en) | Extracting device for fulvic acid dissolved in fresh water body and preparation method therefor | |
| CN106315956B (en) | The extraction equipment and its application method of two-stage alkali cleaning formula water body DOM | |
| CN106396153B (en) | Humic acid extraction element and extracting method are dissolved in a kind of poisons in freshwater | |
| CN206437955U (en) | With preventing the water purifier of reverse osmosis membrane secondary pollution function | |
| CN106430712B (en) | Using the device and preparation method of two-stage resin extraction fresh water fulvic acid | |
| CN106348513B (en) | A kind of counter-infiltration is combined the equipment for extracting fresh water organic matter with resin | |
| CN106430711B (en) | The device of fresh water organic matter is extracted using two-stage resin | |
| CN106519259B (en) | A kind of equipment for extracting water body fulvic acid | |
| CN106496592B (en) | Equipment for extracting hydrophobic humic acid in water body | |
| CN106706404A (en) | Equipment for extracting hydrophobic fulvic acid in soil by adopting combination of two-stage resins | |
| CN101665295A (en) | Water treatment device, water treatment system and water treatment method thereof | |
| CN214167589U (en) | Ceramic membrane chemical cleaning waste liquid treatment device | |
| CN106397790B (en) | The double property humic acid extraction equipments of hydrophilic-hydrophobic in a kind of water body | |
| CN106396172B (en) | The two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater | |
| WO2018072282A1 (en) | Apparatus for extracting fulvic acid in water body | |
| CN106872231B (en) | Soil hydrophobic fulvic acid component extraction purification device | |
| CN110227352A (en) | A kind of biogas slurry method for concentration based on UF membrane | |
| CN106905382A (en) | A kind of device for extracting soil hydrophobic humic acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20201021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |