CN106396172A - Two-stage alkali washing type extraction device of organic matters dissolved in fresh water body - Google Patents
Two-stage alkali washing type extraction device of organic matters dissolved in fresh water body Download PDFInfo
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- CN106396172A CN106396172A CN201610920472.8A CN201610920472A CN106396172A CN 106396172 A CN106396172 A CN 106396172A CN 201610920472 A CN201610920472 A CN 201610920472A CN 106396172 A CN106396172 A CN 106396172A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a two-stage alkali washing type extraction device of organic matters dissolved in a fresh water body. The two-stage alkali washing type extraction device comprises a raw water supply unit, a pretreatment unit, a reverse osmosis concentration unit, a pH (potential of hydrogen) value regulation unit, a finished solution extraction unit, a water tank and a master control system, wherein the finished solution extraction unit comprises a primary-stage adsorbing and gathering device, an ion exchange device A, a secondary-stage adsorbing and gathering device, an ion exchange device B, an eluting device and a chemical adding device; in the finished solution extraction unit, the primary-stage adsorbing and gathering device, the secondary-stage adsorbing and gathering device and respective corresponding ion exchange devices are used for adsorbing and purifying the organic matters dissolved in concentrated water to obtain a high-concentration extraction solution; the high-concentration extraction solution is frozen and dried to obtain high-purity powder solid of the organic matters dissolved in the fresh water body. The two-stage alkali washing type extraction device of the organic matters dissolved in the fresh water body is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to organic extraction field, more particularly, in poisons in freshwater, the two-stage alkali cleaning formula of DOM is extracted
Device.
Background technology
DOM is to be mixed by the class natural macromolecular soluble organic that aperture is 0.45 μm of filter membrane in water body
Compound.Research shows, in poisons in freshwater, DOM mainly includes the acidic materials such as humic acid, fulvic acid and polypeptide, many
The small-molecule substances such as sugar, aminoacid.Wherein, the small-molecule substance such as polypeptide, polysaccharide, aminoacid, proportion little it is easy to aquatic
Biological utilisation and decompose.DOM, mainly includes the acidic materials molecular weight such as humic acid, fulvic acid greatly it is difficult to drop
Solution is main component in DOM and pays close attention to object.DOM content in poisons in freshwater is extremely low, typically
Between 0.1-10mg/L, it separates concentration and enrichment is the difficult point that DOM is studied.
Reverse osmosis technology is in the presence of higher than solution osmotic pressure, according to macromolecular substances can not through semipermeable membrane and incite somebody to action
These materials and water are separated.The membrane aperture of reverse osmosis membrane is very little, therefore, it is possible to effectively go dissolved salts in eliminating water,
Colloid, microorganism, Organic substance etc..It is high that reverse osmosiss have a salt rejection rate, and mechanical strength is big and long service life, chemistry or biochemical tolerance
The advantages of property is strong.The present invention utilizes DOM in reverse osmosis technology initial concentration poisons in freshwater.
Chinese utility model patent (application number：201520012044.6, title：Low-concentration organic composition analysis in water
Pretreatment unit) disclose a kind of pretreatment unit of low-concentration organic composition analysis in water, including raw water box, concentrated water case
And fresh-water tank；First pipeline is set and through this first pipeline communication, on the pipeline of the first pipeline between raw water box and fresh-water tank
Set gradually water intaking valve, Feed Pressurization pump and cartridge filter, Feed Pressurization pump is located at the upstream of cartridge filter；Concentrated water case
Second pipe is set and fresh-water tank between and through the connection of this second pipe, the pipeline of second pipe is disposed with one-level supercharging
Pump and first-stage reverse osmosis film, one-level booster pump is located at the upstream of first-stage reverse osmosis film, and the water outlet of first-stage reverse osmosis film is through the
Two pipelines are connected with fresh-water tank, arrange the 3rd pipeline and through the 3rd pipe between the concentrated water outlet of first-stage reverse osmosis film and concentrated water case
Road connects, and the pipeline of the 3rd pipeline is provided with one-level zwitterion mixed-bed resin Filter column.
Chinese utility model patent (application number：201020694245.6, title：Dissolved organic matter enrichment in a kind of water
Piece-rate system) disclose dissolved organic matter concentration and separation system in a kind of water, fill out including pre-filtrating equipment (1), macroporous resin
Fill post (2), cationic resin packed column (3), resin anion (R.A.) packed column (4), organic carbon in-line analyzer (5), peristaltic pump
(6), pH meter (7), dosing pump (8-13), electromagnetic valve (14-17), glass container (18-25), liquid containing bottle (26-29)；This practicality is new
Type passes through to control the switch of electromagnetic valve (14-17) and dosing pump (8-13), realizes in water dissolved organic matter in resin packed column
On enrichment and separation, the switch of electromagnetic valve and dosing pump passes through pH meter (7) respectively and organic carbon in-line analyzer (5) is controlled
System.
First utility model can realize going by cation and anion exchange mixed bed Filter column anion in eliminating water, sun from
Son, disclosure satisfy that the needs of the Organic substances such as infrared, nuclear-magnetism composition parsing；But there is also following defect：1. organic matter is mainly sub-
Group is divided into macromolecule organic acid (as humic acid, fulvic acid account for 50-90%), neutral rich with the overwhelming majority in weakly acidic pH water body
In acid and humic acid ionize as anion, while this utility model uses anion exchange resin to remove anion in water body,
Can adsorb organic in a large number, cause acid ingredient loss in organic matter.Albuminoid class in organic matter is organic simultaneously is both sexes
Material, not only can ionize as anion in water body but also can ionize as cation, this utility model anions and canons hybrid switching
Resin can adsorb albuminoid class organic matter in a large number, causes albuminoid class organic composition to lose.2. this utility model patent is only fitted
Organic for fresh water, and be inapplicable for organic extraction of sea water, because containing substantial amounts of sodium ion in sea water, reverse osmosis
Thoroughly easily cause the crystalline deposit of sodium chloride, the operation of infringement equipment；3. this utility model patent adopts zwitterion mixed bed tree
Fat Filter column removes calcium ion in eliminating water, magnesium ion, chloride ion, sulfate ion etc., rather than using international XAD resin
Carry out absorptive collection organic, the concentration ratio of the organic matter that this mode is collected relatively low it is impossible to meet in experimentation to highly concentrated
The organic demand of degree.Therefore, there is certain defect in the design process in this utility model, makes to account for organic main subfraction
Macromolecule organic acid and albuminoid class is organic loses.Therefore, can not to extract whole water bodys all organic for this utility model
Component, in addition, this utility model complex structure is it is impossible to realize effective Automated condtrol, exploitativeness is not good.
Second utility model can be automatically obtained the enrichment of dissolved organic matter and separation in water, but is only limited to organic
The separation of thing, and automaticity is not high, complex steps, the inconvenient operation and organic matter of high concentration can not be obtained；In addition, it is first
First above-mentioned utility model patent is only applicable to sewage and the separation of useless Organic substance in water, is completely inapplicable for fresh water or sea water
's；Secondly, there is not nanofiltration process of osmosis in system disclosed in above-mentioned utility model patent, lead to the separation efficiency of Organic substance relatively
Low；Again, the general organic matter of international humic acid association (IHSS) is divided into humic acid and fulvic acid, does not exist in this utility model
The components such as disclosed hydrophilic acidic, hydroneutral, hydrophilic-basic, hydrophobic base, hydrophobic acid, hydrophobic neutrality, and above-mentioned several
Component is different from the component of the organic matter that the present invention protects.
Content of the invention
In order to obtain certain density poisons in freshwater organic matter extracting solution, and obtain high-purity organic matter solid, the present invention
Provide the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater, effectively can easily extract the dissolving in raw water
Organic.
In order to solve above-mentioned technical problem, in the poisons in freshwater of the present invention, the two-stage alkali cleaning formula of DOM extracts dress
Put, including raw water feed unit, pretreatment unit, reverse osmosis concentration unit, acid-base value adjustment unit, finished fluid extraction unit,
Water tank and general control system；
Described finished fluid extraction unit includes primary adsorption enriching apparatus, ion interchange unit A, secondary absorption enrichment dress
Put, ion interchange unit B, elution device and chemicals dosing plant, the entrance of described primary adsorption enriching apparatus and tank outlet, drip washing
The outlet of device, the outlet of chemicals dosing plant connect, the entrance of the outlet of primary adsorption enriching apparatus and ion interchange unit A, two
The entrance of level adsorption and enrichment column device connects, and the bottom of primary adsorption enriching apparatus is provided with waste liquid waste cock；
The entrance of described secondary absorption enriching apparatus is connected with the outlet of elution device, the outlet of chemicals dosing plant, two grades of suctions
The outlet of attached enriching apparatus is connected with the entrance of ion interchange unit B, and the bottom of secondary absorption enriching apparatus is provided with waste liquid and discharges
Switch；
The outlet of described elution device is connected with the entrance of described ion interchange unit A, the entrance of ion interchange unit B；
Described primary adsorption enriching apparatus include adsorption column and filler, and described filler, in described adsorption column, described is filled out
Expect for one or more of XAD-8 resin, DAX-8 resin and XAD-7 resin；Described ion interchange unit A includes adsorption column
And filler, in described adsorption column, described filler is hydrogen type cation exchange resin to described filler；
Described secondary absorption enriching apparatus include adsorption column and filler, and described filler, in described adsorption column, described is filled out
Expect for XAD-4 resin；Described ion interchange unit B includes adsorption column and filler, and described filler is in described adsorption column, described
Filler is hydrogen type cation exchange resin.
Preferably, described water tank adopts acid resisting material, is provided with closure above it, and lower end is funnel shaped, is provided with it
Agitator, liquid level sensor and pH sensor；The end face of described closure is provided with least 5 through holes；Described water tank and described one
Pipeline between level adsorption and enrichment device gos deep in water tank, and pipeline top is sealing structure, and it is 50 μ that duct wall is provided with multiple apertures
The hole of m, the minimum altitude in hole controls at the 1/100-1/10 of tank height, and the described tank pipe that stretches into is externally provided with filter mantle,
The aperture of described filter mantle is 100 μm.
Preferably, described acid-base value adjustment unit includes pH sensor, agitator, metering dosing pump, the first acid solution medicine
Agent case and the second acid solution chemical tank；Described pH sensor in water tank, described first acid solution chemical tank and the second acid solution medicament
Case is arranged in juxtaposition；Described metering dosing pump, located between the first acid solution chemical tank, the second acid solution chemical tank and water tank, measures dosing
The entrance of pump is connected with the outlet of the first acid solution chemical tank, the outlet of the second acid solution chemical tank respectively, the outlet of metering dosing pump
It is connected with water tank.
Preferably, described reverse osmosis concentration unit includes reverse osmosis units, high-pressure pump, ion interchange unit C, the first conductance
Rate probe and the second conductivity probe；Wherein reverse osmosis units include reverse osmosis membrane and rustless steel putamina, described reverse osmosis membrane
Aperture value is 0.1nm；
Described first conductivity probe exports and ion interchange unit C between located at described reverse osmosis units concentrated water, and second
Conductivity probe exports and elution device between located at the pure water of reverse osmosis units；Detect number by contrasting two conductivity probes
Value is it can be determined that whether reverse osmosis membrane working condition is good.
Preferably, described reverse osmosis units are provided with liquid-inlet, concentrated water outlet and pure water outlet；Described liquid-inlet passes through
High-pressure pump is connected with water tank, and the outlet of described concentrated water is connected with ion interchange unit C entrance, described ion interchange unit C export and
Water tank connects, and described ion interchange unit C includes adsorption column and filler, described filler in described adsorption column, described filler
For hydrogen type cation exchange resin；Described pure water outlet is connected with the entrance of elution device；Described reverse osmosis units concentrated water and pure
Water out is equipped with security valve；Described elution device upper end is provided with discharge outlet, for discharging excessive pure water.
Preferably, described reverse osmosis units concentrated water and pure water outlet are equipped with security valve, in raw water concentration process, described anti-
When permeation unit pure water and concentrated water electrical conductivity difference are less than preset value, described security valve is opened, and illustrates that now system cannot be carried out
Reverse osmosis concentration.
Preferably, described pretreatment unit includes one-level precision microfiltration filter and two grades of accurate microfiltration filters, one-level
In accurate microfiltration filter, the aperture of precision Filter element is 1 μm, and in two grades of accurate microfiltration filters, the aperture of precision Filter element is 0.45 μ
m；The described one-level precision entrance of microfiltration filter is connected with the outlet of self priming pump, the outlet and two of one-level precision microfiltration filter
The entrance of the accurate microfiltration filter of level connects, and the outlet of two grades of accurate microfiltration filters is connected with water tank.
Preferably, all using polypropylene filter element, precision Filter element needs to change in time, can keep away for one-level, two grades of precision Filter elements
Exempt from blocking and excessive contaminants cooperating microorganisms.
Preferably, raw water feed unit adopts self-priming water supplying pump, and raw water is mainly the fresh water water such as rivers and lakes and subsoil water
Body, within 1000NTU, within 1000mg/l, electrical conductivity value exists the value of dissolved organic carbon the turbidity of raw water quality
Within 30000 μ S/cm；The front end of self priming pump is provided with filter bag, and the aperture of described filter bag is 5 μm.
Preferably, described general control system includes control unit and touch screen device, and described controllable unit is connected with touch screen device,
Described controllable unit is connected with self priming pump, liquid level sensor, pH sensor, metering dosing pump and high-pressure pump；Described pH sensing
Device is provided with lifting platform, can rise to pH sensor outside water tank if necessary.
Preferably, it is provided with liquid level sensor in described water tank, its height of water level controls the 1/5-4/5 in tank height.
Present invention also offers a kind of using the two-stage alkali cleaning formula extraction element of DOM in described poisons in freshwater
Using method, it comprises the steps：
(1) start the main power 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 raw water after filtration enters the one-level precision microfiltration filter 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 microfiltration filters and carries out secondary filter, filters
Raw water afterwards enters water tank by pipeline；When the water level in water tank reaches 4/5 water tank volume, self priming pump quits work；
(3) raw water in water tank enters into reverse osmosis concentration unit through high-pressure pump supercharging by pipeline, and reverse osmosis membrane can cut
Stay solvable inorganic salt and the DOM in raw water, obtain pure water and concentrated water；Pure water is directly discharged to elution device and is deposited
Storage, unnecessary pure water passes through the discharge outlet discharge of elution device upper end；Concentrated water removes cation through ion interchange unit C and is recycled into water
Case, when the dissolved organic carbon content that the dissolved organic carbon on-line determination device in water tank measures reaches preset value, stops
Concentrate；Hydrogen type cation exchange resin in ion interchange unit C should ensure that q.s or timely activation；Reverse osmosis membrane is by rivers
The poisons in freshwater such as lake and subsoil water is separated into pure water and concentrated water, and pure water ratio is higher, and concentrated water saliferous rate and organic concentration are higher,
But too high pure water ratio damages to reverse osmosis membrane, therefore, the pure water amount that reverse osmosis membrane is discharged and the concentrated water amount discharged
Ratio is 1:9-9:1, preferably 1:2-2:1；
(4) start acid-base value adjustment unit, metering dosing pump receives pH sensor signal and starts acid solution addition program, passes through
First passage from first acid solution chemical tank extract acid solution pass through the first acid-resistant pipeline to water tank inject non-oxidizable acid solution, simultaneously
In water tank, stirring motor starts so that acid solution and concentrated water uniformly mix, and until reaching default pH value, metering dosing pump first leads to
Road acid liquid program stopped work, pH sensor lifting platform rises pH sensor probe；
Metering dosing pump Fluohydric acid. is extracted from the second acid solution chemical tank by second channel, by the second acid-resistant pipeline to
Fluohydric acid. is injected, until reaching default hydrofluoric acid concentration, metering dosing pump and water tank stirring motor quit work in water tank；
(5) complete pH value to adjust and Fluohydric acid. addition, and stand the concentrated water after 24h to flow successively through primary adsorption by pipeline
Enriching apparatus and secondary absorption enriching apparatus, after the completion of absorption, close between primary adsorption device and secondary absorption enriching apparatus
Communicating valve, close the connection valve between primary adsorption enriching apparatus and ion interchange unit A, open elution device and one-level
Communicating valve between adsorption and enrichment device, opens the waste liquid waste cock of primary adsorption enriching apparatus bottom, in elution device
Pure water passes through pipe flushing primary adsorption enriching apparatus, and flushing waste is discharged by waste liquid waste cock, completes primary adsorption rich
The flushing of acquisition means, closes the waste liquid waste cock of primary adsorption enriching apparatus bottom, closes elution device rich with primary adsorption
Communicating valve between acquisition means；
Open the communicating valve between elution device and ion interchange unit A, open the waste liquid row of ion interchange unit A bottom
Go out switch, the pure water in elution device passes through pipe flushing ion interchange unit A, flushing waste is arranged by waste liquid waste cock
Go out, complete the flushing of ion interchange unit A, close the waste liquid waste cock of ion interchange unit A bottom, close elution device with
Communicating valve between ion interchange unit A；
Close the connection valve between secondary absorption enriching apparatus and ion interchange unit B, open elution device and two grades
Communicating valve between adsorption and enrichment device, opens the waste liquid waste cock of secondary absorption enriching apparatus bottom, in elution device
Pure water passes through pipe flushing secondary absorption enriching apparatus, and flushing waste is discharged by waste liquid waste cock, completes secondary absorption rich
The flushing of acquisition means, closes the waste liquid waste cock of secondary absorption enriching apparatus bottom, closes elution device rich with secondary absorption
Communicating valve between acquisition means；
Open the communicating valve between elution device and ion interchange unit B, open the waste liquid row of ion interchange unit B bottom
Go out switch, the pure water in elution device passes through pipe flushing ion interchange unit B, flushing waste is arranged by waste liquid waste cock
Go out, complete the flushing of ion interchange unit B, close the waste liquid waste cock of ion interchange unit B bottom, close elution device with
Communicating valve between ion interchange unit B；
(6) primary adsorption enriching apparatus, secondary absorption enriching apparatus, ion interchange unit A, ion interchange unit B are completed
After flushing, close the communicating valve between primary adsorption device and secondary absorption enriching apparatus, open chemicals dosing plant and primary adsorption
Communicating valve between enriching apparatus, opens the communicating valve between primary adsorption enriching apparatus and ion interchange unit A, chemicals dosing plant
Alkali liquor is injected in primary adsorption enriching apparatus by alkaline-resisting pipeline, by the DOM of resin absorption in the presence of alkali liquor
There is desorbing, the effluent after desorbing is discharged after the hydrogen type cation exchange resin in ion interchange unit A, described ion is handed over
Hydrogen type cation exchange resin in changing device A should ensure that q.s or timely activation, and the liquid mark discharged is that one-level is inhaled
Attached pregnant solution；
Close the communicating valve between chemicals dosing plant and primary adsorption enriching apparatus, open chemicals dosing plant and be enriched with secondary absorption
Communicating valve between device, opens the communicating valve between secondary absorption enriching apparatus and ion interchange unit B, and chemicals dosing plant passes through
Alkaline-resisting pipeline injects alkali liquor in secondary absorption enriching apparatus, is occurred in the presence of alkali liquor by the DOM of resin absorption
Desorbing, the effluent after desorbing is discharged after the hydrogen type cation exchange resin in ion interchange unit B, described ion exchange dress
Put the hydrogen type cation exchange resin in B and should ensure that q.s or timely activation, the liquid mark discharged is that secondary absorption is rich
Liquid collecting；
Merge primary adsorption pregnant solution and secondary absorption pregnant solution, be high-purity poisons in freshwater dissolving after lyophilization organic
Matter powder solid.
Preferably, the discharge line of reverse osmosis units pure water is provided with flow speed control valve, described reverse osmosis units concentrated water discharge pipe
Road is provided with flow speed control valve, and the pure water amount that reverse osmosis membrane is discharged is 1 with the ratio of the concentrated water amount discharged:9-9:1.
Preferably, described first acid-resistant pipeline requires to bear the non-oxidizing acid of 10mol/L；Described second acid-resistant pipeline
Requirement can bear the Fluohydric acid. of 6mol/L；Described water tank requires to bear 1mol/L strong acid and 0.5mol/L Fluohydric acid.；Described plus
Alkali liquor in medicine device is the highly basic of 0.1mol/L；Described alkaline-resisting requirements for pipes can bear the highly basic of 0.5mol/L, described water tank
The preset value of pH is 0.5-3.
Preferably, the front end of described high-pressure pump is provided with pressure gauge and security valve, in raw water concentration process, before described high-pressure pump
When pressure is more than preset value, described security valve is opened, it is to avoid high-pressure pump damages and pipeline burst phenomenon.
Preferably, the front end of described self priming pump is provided with relief valve, is provided with liquid level sensor in described water tank, and its water level is in water
During case 4/5 water tank volume, described relief valve is opened, and self priming pump shuts down, it is to avoid cistern water level is too high.
Preferably, reverse osmosis membrane can not dry-storage, it is necessary to assure have water in rustless steel putamina, if equipment leave unused for some reason super
Cross 70h, reverse osmosis membrane should be soaked in clean water, if leave unused for a long time must seal up for safekeeping by reverse osmosis membrane requirement storage mode.
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 join
Electric cabinet, powers to process system power-equipment；On and off switch in control system is protected with electrical control cubicles gate interlock, can reach anti-
Dirt, rapid heat dissipation and easy-to-install effect.
Compared with prior art the beneficial effect comprise that：
(1) present invention provides that the two-stage alkali cleaning formula extraction element structure of DOM in poisons in freshwater is simple, operation side
Just, DOM in poisons in freshwater be can easily and effectively extract, extracting solution and the pressed powder of desired concn obtained；
(2) the one-level precision Filter element aperture in the present invention is set to 1 μm, and two grades of precision Filter element apertures are 0.45 μm, not only
Effective filter out the impurity such as float of larger particles in water, preferably avoid the scuffing that granule debris cause to film, stifled
Plug and impacting with high pressure；And fully achieve protection reverse osmosis membrane and go deimpurity effect using filtration twice；
(3) whole process that acid-base value adjustment unit adjusts pH value is full automatic, saves labour force, reduces production
Cost, the accuracy rate of the pH value of modulation is higher；
(4) the pure water amount discharged in reverse osmosis units and the ratio of the concentrated water amount discharged are preferably 2:1-1:2, so permissible
Avoid pure water discharge excessive or the too small injury that film is caused or device efficiency reduction；
(5) filler in reverse osmosis concentration unit intermediate ion switch C is hydrogen type cation exchange resin, can be anti-
Effectively remove the cation such as metal ion in concentrated water during osmosis concentration, effectively prevent possible flocculation in raw water concentration process
And precipitation；
(6) filler in primary adsorption enriching apparatus in finished fluid extraction unit adopt XAD-8 resin, DAX-8 resin and
One or more of XAD-7 resin, the filler in secondary absorption enriching apparatus adopts XAD-4 resin, second resin multiple techniques
The DOM in concentrated water can be more effectively enriched with, remove to the impurity in concentrated water, obtain the higher dissolving of concentration organic
Matter liquid.
Brief description
Fig. 1 is the process chart of the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater 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 technique stream of the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater of the present invention
Cheng Tu.The organic purifying plant that the present invention provides, including raw water feed unit, pretreatment unit, reverse osmosis concentration unit, acid
Basicity adjustment unit, finished fluid extraction unit, water tank 8 and general control system 4；Wherein raw water feed unit mainly includes self priming pump
1；Pretreatment unit includes 2, two grades of accurate microfiltration filters 3 of one-level precision microfiltration filter；Reverse osmosis concentration unit includes instead
Permeation unit 11, high-pressure pump 10, ion interchange unit C9 and dissolved organic carbon on-line monitoring equipment, wherein reverse osmosis units 11 wrap
Include reverse osmosis membrane and rustless steel putamina；Acid-base value adjustment unit includes pH sensor, metering dosing pump 5, the first acid solution chemical tank 6
With the second acid solution chemical tank 7；Finished fluid extraction unit includes elution device 14, chemicals dosing plant 15, primary adsorption enriching apparatus 16
With ion interchange unit A17, secondary absorption enriching apparatus 18 and ion interchange unit B19；General control system 4 mainly adopts automatically
Control, collection control operation unification in switch board therein is carried out, and whole system can be made to realize automatically controlling operation and manual operation.
Wherein, the entrance of one-level precision micro-filter 2 is connected with the outlet of self priming pump 1, the going out of the accurate micro-filter 2 of one-level
Mouth is connected with the entrance of two grades of accurate micro-filters 3, and the outlet of two grades of accurate micro-filters 3 is connected with water tank 8；PH sensor position
In water tank 8, the first acid solution chemical tank 6 and the second acid solution chemical tank 7 are arranged in juxtaposition, and dosage dosing pump 5 is located at water tank 8 and first
Between acid solution chemical tank 6, the second acid solution chemical tank 7, the outlet of the metering entrance of dosing pump 5 and the first acid solution chemical tank 6, second
The outlet of acid solution chemical tank 7 connects, and the outlet of metering dosing pump 5 is connected with water tank 8；Reverse osmosis units 11 are provided with liquid-inlet,
Concentrated water outlet and pure water outlet；Liquid-inlet is connected with water tank 8 by high-pressure pump 10, and concentrated water outlet is entered with ion interchange unit C9
Mouth connects, and described ion interchange unit C9 outlet is connected with water tank 8, and described ion interchange unit C9 includes adsorption column and filler,
In described adsorption column, described filler is hydrogen type cation exchange resin to described filler；Pure water outlet is with elution device 14 even
Connect, the entrance of elution device 14 outlet and primary adsorption enriching apparatus 16, the entrance of secondary absorption enriching apparatus 18, ion exchange
The entrance of device A17, the entrance of ion interchange unit B19 connect, and elution device 14 upper end is provided with discharge outlet, for discharging excess
Pure water.
Described finished fluid extraction unit includes primary adsorption enriching apparatus 16, ion interchange unit A17, secondary absorption enrichment
Device 18, ion interchange unit B19, elution device and chemicals dosing plant 15, the entrance of primary adsorption enriching apparatus 16 is gone out with water tank 8
Mouth, the outlet of elution device 14, the outlet of chemicals dosing plant 15 connect, and the outlet of primary adsorption enriching apparatus 16 is filled with ion exchange
Put the entrance of A17, the entrance of secondary absorption enrichment column device 18 connects, the bottom of primary adsorption enriching apparatus 16 is provided with waste liquid row
Go out switch, the entrance of described secondary absorption enriching apparatus 18 and primary adsorption enriching apparatus 16 export, the outlet of elution device 14,
The outlet of chemicals dosing plant 15 connects, and the outlet of secondary absorption enriching apparatus 18 is connected with the entrance of ion interchange unit B19, two grades
The bottom of adsorption and enrichment device 18 is provided with waste liquid waste cock；
The entrance of ion interchange unit A17 is connected with the outlet of primary adsorption enriching apparatus 16, the outlet of elution device 14,
The entrance of ion interchange unit B19 is connected with the outlet of secondary absorption enriching apparatus 18, the outlet of elution device 14；
The two-stage alkali cleaning formula extraction element of DOM in the poisons in freshwater that the present invention provides, maximum pure water output capacity is
0.2m3/ h, its raw water water source is the poisons in freshwater such as rivers and lakes and subsoil water, and the water quality requirement of raw water exists for the turbidity of water quality
Within 1000NTU, within 1000mg/l, electrical conductivity value is within 30000 μ S/cm for the value of dissolved organic carbon.
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, being equipped with the switch board of independent operation in control system, and electric switch and electrically first
Part all concentrates in switch board, and on and off switch and electrical control cubicles gate interlock are protected, and can reach dust-proof, rapid heat dissipation and easy-to-install
Effect.
First turn on main power and start button, make whole system in running order, self priming pump 1 is drawn by pipeline former
Water, raw water is tentatively filtered by the filter bag positioned at self priming pump front end, and the aperture of filter bag is 5 μm, filters through preliminary
The one-level precision microfiltration filter 2 that entered by the supercharging of self priming pump in pretreatment unit of raw water once mistake is carried out to raw water
Filter, the raw water after once filtering enters two grades of accurate microfiltration filters 3 and carries out secondary filter, and wherein one-level precision microfiltration filters
Filter element aperture in device 2 is 1 μm, and the filter element aperture in two grades of accurate microfiltration filters 3 is 0.45 μm, due in poisons in freshwater
Grain float is more, two grades of accurate microfiltration filters series connection, and the setting of this kind of filter element aperture can preferably filter larger in water
The impurity such as particle suspensions, increase water quality, and more effectively avoid scuffing, blocking and high pressure punching that particulate contaminant causes to film
Hit.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 grades of precise filtering devices filter enters water tank 8 by connecting pipe, and the liquid level in water tank 8 passes
Sensor detects to 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
Send liquid level signal, after general control system receives liquid level signal, send control signal so as to quit work to self priming pump 1, that is, stop
The water filling in water tank.
Raw water in water tank is pressurizeed the reverse osmosis membrane entering in reverse osmosis units 11 through high-pressure pump 10, and reverse osmosis membrane can be by
In the fresh water such as surface water, subsoil water and tap water, soluble-salt and organic molecule are trapped in concentrated water；Its to the dissolved sodium from
The removal efficiency of son 96% about, can reach 98%；Pure water through reverse osmosis membrane is directly discharged to storage in elution device 14
Deposit, reverse osmosis units 11 with elution device 14 connecting pipe are provided with flow speed control valve, pure water can be adjusted and flow out reverse osmosis membrane
Speed, its speed range of accommodation is 0-200L/h；Treat system after hours, the pure water in available elution device 14 is to reverse osmosiss
Film flush clean；Concentrated water through reverse osmosis membrane separation is back to water tank 8 after ion interchange unit C9 Adsorption cation
In, reverse osmosis units 11 with ion interchange unit C9 connecting pipe are provided with flow speed control valve, concentrated water can be adjusted and flow out reverse osmosiss
The speed of film, its speed range of accommodation is 0-200L/h；Pure water flows out the speed of reverse osmosis membrane and concentrated water flows out reverse osmosis membrane
Speed value is arranged in suitable scope, and the pure water amount making reverse osmosis membrane discharge and the ratio of the concentrated water amount discharged are 1:9-9:
1, and then the excessive velocities because pure water flows out or the injury excessively slowly reverse osmosis membrane being caused or device efficiency reduction can be avoided.Dense
Water enters water tank and can circulate concentration, and so repeatedly, the water in raw water box is fewer and feweri, the concentration of salinity and the content of organic matter
More and more higher, when the dissolved organic carbon content that the dissolved organic carbon on-line determination device in water tank measures reaches preset value, stops
Only concentrate, close concentration systems.
During raw water concentrates, avoid that cocnentration factor is too high, cocnentration factor is higher as far as possible, reverse osmosis membrane nearby saliferous rate and
Organic excessive concentration, can damage to reverse osmosis membrane, therefore, by the content of organic matter in concentrated water control 10000mg/L with
Under.It is provided with the first conductivity probe 12, reverse osmosis units 11 between the outlet of reverse osmosis concentration unit concentrated water and ion interchange unit C
Place is provided with the second conductivity probe 13 and elution device 14 between, is visited by contrasting the first conductivity probe 12 and the second electrical conductivity
The numerical value of 13 detections are it can be determined that reverse osmosis membrane whether seepage；If i.e. the first conductivity probe 12 and the second electrical conductivity are visited
The numerical value of 13 detections equal it is possible to determine that Seepage in reverse osmosis membrane.Reverse osmosis units 11 concentrated water and the outlet of pure water
Place is additionally provided with security valve, and in raw water concentration process, reverse osmosis units 11 concentrated water and pure electrical conductivity of water difference are less than preset value
When, security valve is opened, and now system is out of service.
The front end of high-pressure pump 10 is provided with security valve, during concentrating, when water level is less than the 1/5 of water tank, security valve
Open, high-pressure pump shuts down, thus can avoid the phenomenon leading to high-pressure pump to burn during high-pressure pump idle running；The front end of high-pressure pump
It is additionally provided with pressure gauge, when the pressure before high-pressure pump is more than preset value, security valve is opened, high-pressure pump can be avoided to damage and pipeline
Decrepitation Phenomena.
Filler in reverse osmosis concentration unit intermediate ion switch C9 is hydrogen type cation exchange resin, can be in reverse osmosis
Thoroughly effectively remove the cation such as metal ion in concentrated water in concentration process, effectively prevent in raw water concentration process in water tank 8 and pipe
Possible flocculation and precipitation in road；Hydrogen type cation exchange resin in ion interchange unit C9 should ensure that q.s or lives in time
Change；
Raw water concentrates after terminating, and starts acid-base value adjustment unit.Required pH value is set in general control system 4, and it sets
Fixed pH value is 0.5-3, and pH value signal transmission is given metering dosing pump 5 by pH sensor, and metering dosing pump startup acid solution adds journey
Sequence, by first passage from the first acid solution chemical tank 6 extract acid solution pass through the first acidproof special pipeline to water tank inject non-oxygen
The property changed acid solution, the stirring motor startup in water tank 8 simultaneously, so that acid solution and concentrated water uniformly mix, carries out pH value regulation, until pH
Value reaches the value pre-setting, metering dosing pump first passage acid liquid program stopped work, and pH sensor lifting platform rises pH
Sensor probe；Metering dosing pump extracts Fluohydric acid., by the second acidproof spy by second channel from the second acid solution chemical tank 7
Different pipeline injects Fluohydric acid. in water tank 8, and until reaching default hydrofluoric acid concentration, metering dosing pump quits work.
The process that whole pH value is adjusted is full automatic, saves labour force, reduces production cost, and the pH modulating
The degree of accuracy of value is higher, and the process efficiency of preparation is also higher.During pH regulator, turn on agitator motor makes agitator stir
Mix the water in water tank 8 and uniformly dissolve in water so that flowing into acid solution medicament therein, the acid strength of local can be avoided higher or inclined
Low.
Because water tank 8 adopts acid resisting material, and above it, it is provided with closure, the end face of closure is provided with least 5 through holes；
Lower end is funnel shaped, is conducive to the output of concentrated water；It is provided with agitator and pH sensor in it；PH sensor is provided with lifting platform,
After the completion of pH value is adjusted, lifting platform can rise to pH sensor on the water surface；
Pipeline between water tank and primary adsorption enriching apparatus 16 gos deep in water tank, and pipeline top is sealing structure, pipeline
Wall is provided with the hole that multiple apertures are 50 μm, and the minimum altitude in hole controls at the 1/100-1/10 of tank height, described stretches into water
Case pipeline is externally provided with filter mantle, and the aperture of described filter mantle is 100 μm；It is more beneficial for isolating the impurity in concentrated water.
Complete pH value to adjust and Fluohydric acid. addition, and stand the concentrated water after 24h to flow successively through primary adsorption richness by pipeline
Acquisition means 16 and secondary absorption enriching apparatus 18, after the completion of absorption, close primary adsorption device 16 and secondary absorption enriching apparatus
Communicating valve between 18, closes the connection valve between primary adsorption enriching apparatus 16 and ion interchange unit A17, opens drip washing
Communicating valve between device 14 and primary adsorption enriching apparatus 16, the waste liquid discharge opening primary adsorption enriching apparatus 16 bottom is opened
Close, the pure water in elution device 14 passes through pipe flushing primary adsorption enriching apparatus 16, flushing waste passes through waste liquid waste cock
Discharge, complete the flushing of primary adsorption enriching apparatus 16, close the waste liquid waste cock of primary adsorption enriching apparatus 16 bottom, close
Close the communicating valve between elution device 14 and primary adsorption enriching apparatus 16；
Close the connection valve between primary adsorption enriching apparatus 16 and ion interchange unit A17, open elution device 14
Communicating valve and ion interchange unit A17 between, opens the waste liquid waste cock of ion interchange unit A17 bottom, elution device
Pure water in 14 passes through pipe flushing ion interchange unit A17, and flushing waste is discharged by waste liquid waste cock, completes ion and hands over
The flushing of changing device A17, closes the waste liquid waste cock of ion interchange unit A17 bottom, closes elution device 14 and ion is handed over
Communicating valve between changing device A17；
Close the connection valve between secondary absorption enriching apparatus 18 and ion interchange unit B19, open elution device 14
Communicating valve and secondary absorption enriching apparatus 18 between, opens the waste liquid waste cock of secondary absorption enriching apparatus 18 bottom, drenches
Pure water in cleaning device 14 passes through pipe flushing secondary absorption enriching apparatus 18, and flushing waste is discharged by waste liquid waste cock,
Complete the flushing of secondary absorption enriching apparatus 18, close the waste liquid waste cock of secondary absorption enriching apparatus 18 bottom, close and drench
Communicating valve between cleaning device 14 and secondary absorption enriching apparatus 18；
Close the connection valve between secondary absorption enriching apparatus 18 and ion interchange unit B19, open elution device 14
Communicating valve and ion interchange unit B19 between, opens the waste liquid waste cock of ion interchange unit B19 bottom, elution device
Pure water in 14 passes through pipe flushing ion interchange unit B19, and flushing waste is discharged by waste liquid waste cock, completes ion and hands over
The flushing of changing device B19, closes the waste liquid waste cock of ion interchange unit B19 bottom, closes elution device 14 and ion is handed over
Communicating valve between changing device B19；
Complete primary adsorption enriching apparatus 16, secondary absorption enriching apparatus 18, ion interchange unit A17, ion exchange dress
After putting B19 flushing, close the communicating valve between primary adsorption enriching apparatus 16 and secondary absorption enriching apparatus 18, open dosing dress
Put the communicating valve between 15 and primary adsorption enriching apparatus 16, open primary adsorption enriching apparatus 16 and ion interchange unit A17
Between communicating valve, chemicals dosing plant 15 injects alkali liquor, by resin by alkaline-resisting special pipeline in primary adsorption enriching apparatus 16
There is desorbing in the DOM of absorption in the presence of alkali liquor, the effluent after desorbing is through the hydrogen in ion interchange unit A17
Discharge after type cation exchange resin, the hydrogen type cation exchange resin in described ion interchange unit A17 should ensure that q.s
Or activate in time, the liquid mark discharged is primary adsorption pregnant solution；
Open the communicating valve between chemicals dosing plant 15 and secondary absorption enriching apparatus 18, open secondary absorption enriching apparatus 18
Communicating valve and ion interchange unit B19 between, chemicals dosing plant 15 is by alkaline-resisting special pipeline to secondary absorption enriching apparatus 18
, be there is desorbing in the presence of alkali liquor by the DOM of resin absorption, the effluent after desorbing is through ion in middle injection alkali liquor
Discharge after hydrogen type cation exchange resin in switch B19, the hydrogen form cation in described ion interchange unit B19 exchanges
Resin should ensure that q.s or timely activation, and the liquid mark discharged is secondary absorption pregnant solution；
Merge primary adsorption pregnant solution and secondary absorption pregnant solution, be high-purity poisons in freshwater dissolving after lyophilization organic
Matter powder solid.
Described primary adsorption enriching apparatus include adsorption column 16 and filler, and described filler is in described adsorption column, described
Filler is one or more of XAD-8 resin, DAX-8 resin and XAD-7 resin；Described ion interchange unit A17 includes inhaling
Attached column and filler, in described adsorption column, described filler is hydrogen type cation exchange resin to described filler；
Described secondary absorption enriching apparatus include adsorption column 18 and filler, and described filler is in described adsorption column, described
Filler is XAD-4 resin；Described ion interchange unit B19 includes adsorption column and filler, described filler in described adsorption column,
Described filler is hydrogen type cation exchange resin；
After completing a cycle of operation, restart self priming pump, enter next cycle of operation.When the water body content of organic matter
When relatively low, can be intake for more than 1 time so that concentrated water dissolved organic carbon concentration reaches preset value in water tank 8 by self priming pump, then carry out
Next step acid-base value is adjusted.
After organic extraction terminates, close the discharge outlet of water tank, the pure water being stored in elution device 14 imported water tank,
Start and concentrate, concentrated water valve is reached maximum, using pure water the cleaning realizing reverse osmosis membrane is washed away to film.Reverse osmosis 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, reverse osmosis membrane should be soaked in clean water, if
Leave unused for a long time and must seal up for safekeeping by reverse osmosis membrane requirement storage mode.In the organic extraction of poisons in freshwater, gained pure water is stored in drip washing dress
Put 14, rinse offer water for reverse osmosis membrane, successfully solve the practical problem that field pure water is difficult to obtain.Mentioned above one
The detailed description of series is only for illustrating of the feasibility embodiment of the present invention, and they are not to limit this
The protection domain of invention, in the ken that described technical field those of ordinary skill possesses, without departing from ancestor of the present invention
The various change made on the premise of purport belongs to protection scope of the present invention.
Claims (10)
1. in poisons in freshwater DOM two-stage alkali cleaning formula extraction element, including raw water feed unit, pretreatment unit, anti-
Osmosis concentration unit, acid-base value adjustment unit, finished fluid extraction unit, water tank and general control system；
Described finished fluid extraction unit include primary adsorption enriching apparatus, ion interchange unit A, secondary absorption enriching apparatus, from
Sub- switch B, elution device and chemicals dosing plant, the entrance of described primary adsorption enriching apparatus and tank outlet, elution device
Outlet, the outlet of chemicals dosing plant connect, the entrance of the outlet of primary adsorption enriching apparatus and ion interchange unit A, two grades of suctions
The entrance of attached enrichment column device connects, and the bottom of primary adsorption enriching apparatus is provided with waste liquid waste cock；
The entrance of described secondary absorption enriching apparatus is connected with the outlet of elution device, the outlet of chemicals dosing plant, and secondary absorption is rich
The outlet of acquisition means is connected with the entrance of ion interchange unit B, and the bottom of secondary absorption enriching apparatus is provided with waste liquid waste cock；
The outlet of described elution device is connected with the entrance of described ion interchange unit A, the entrance of ion interchange unit B；
Described primary adsorption enriching apparatus include adsorption column and filler, and in described adsorption column, described filler is described filler
One or more of XAD-8 resin, DAX-8 resin and XAD-7 resin；Described ion interchange unit A includes adsorption column and fills out
Material, in described adsorption column, described filler is hydrogen type cation exchange resin to described filler；
Described secondary absorption enriching apparatus include adsorption column and filler, and in described adsorption column, described filler is described filler
XAD-4 resin；Described ion interchange unit B includes adsorption column and filler, described filler in described adsorption column, described filler
For hydrogen type cation exchange resin.
2. in poisons in freshwater as claimed in claim 1 the two-stage alkali cleaning formula extraction element of DOM it is characterised in that institute
State water tank and adopt acid resisting material, above it, be provided with closure, lower end is funnel shaped, is provided with agitator, liquid level sensor in it
With pH sensor；The end face of described closure is provided with least 5 through holes；Between described water tank and described primary adsorption enriching apparatus
Pipeline go deep in water tank, pipeline top is sealing structure, and duct wall is provided with the hole that multiple apertures are 50 μm, the minimum altitude in hole
Control at the 1/100-1/10 of tank height, the described tank pipe that stretches into is externally provided with filter mantle, and the aperture of described filter mantle is
100μm.
3. in poisons in freshwater as claimed in claim 1 the two-stage alkali cleaning formula extraction element of DOM it is characterised in that institute
State acid-base value adjustment unit and include pH sensor, agitator, metering dosing pump, the first acid solution chemical tank and the second acid solution medicament
Case；In water tank, described first acid solution chemical tank and the second acid solution chemical tank are arranged in juxtaposition described pH sensor；Described metering
Located between the first acid solution chemical tank, the second acid solution chemical tank and water tank, the entrance of metering dosing pump is respectively with first for dosing pump
The outlet of acid solution chemical tank, the outlet of the second acid solution chemical tank connect, and the outlet of metering dosing pump is connected with water tank.
4. in poisons in freshwater as claimed in claim 1 the two-stage alkali cleaning formula extraction element of DOM it is characterised in that described
Reverse osmosis concentration unit includes reverse osmosis units, high-pressure pump, ion interchange unit C, the first conductivity probe and the second electrical conductivity
Probe；Wherein reverse osmosis units include reverse osmosis membrane and rustless steel putamina, and the aperture value of described reverse osmosis membrane is 0.1nm；
Described first conductivity probe exports and ion interchange unit C between located at described reverse osmosis units concentrated water, the second conductance
Rate is popped one's head in located between the pure water outlet of reverse osmosis units and elution device.
5. in poisons in freshwater as claimed in claim 4 the two-stage alkali cleaning formula extraction element of DOM it is characterised in that described
Reverse osmosis units are provided with liquid-inlet, concentrated water outlet and pure water outlet；Described liquid-inlet is connected with water tank by high-pressure pump, institute
State concentrated water outlet to be connected with ion interchange unit C entrance, described ion interchange unit C outlet is connected with water tank, and described ion is handed over
Changing device C includes adsorption column and filler, and in described adsorption column, described filler exchanges tree for hydrogen form cation to described filler
Fat；Described pure water outlet is connected with the entrance of elution device；Described reverse osmosis units concentrated water and pure water outlet are equipped with security valve；
Described elution device upper end is provided with discharge outlet.
6. in poisons in freshwater as claimed in claim 1 the two-stage alkali cleaning formula extraction element of DOM it is characterised in that institute
State pretreatment unit and include one-level precision microfiltration filter and two grades of accurate microfiltration filters, essence in one-level precision microfiltration filter
The aperture of close filter element is 1 μm, and in two grades of accurate microfiltration filters, the aperture of precision Filter element is 0.45 μm；Described one-level precision microfiltration
The entrance of filter is connected with the outlet of self priming pump, the outlet of one-level precision microfiltration filter and two grades of accurate microfiltration filters
Entrance connects, and the outlet of two grades of accurate microfiltration filters is connected with water tank.
7. in poisons in freshwater as claimed in claim 1 the two-stage alkali cleaning formula extraction element of DOM it is characterised in that described
General control system includes control unit and touch screen device, and described controllable unit is connected with touch screen device, described controllable unit with from
Sucking pump, liquid level sensor, pH sensor, metering dosing pump and high-pressure pump connect；Described pH sensor is provided with lifting platform.
8. utilize the use of the two-stage alkali cleaning formula extraction element of DOM in the arbitrary described poisons in freshwater of claim 1-7
Method is it is characterised in that it comprises the steps：
(1) start the main power 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 raw water after filtration is by the one-level precision microfiltration filter in the supercharging entrance pretreatment unit of self priming pump to former
Water is once filtered, and the raw water after once filtering enters two grades of accurate microfiltration filters and carries out secondary filter；After filtration
Raw water enters water tank by pipeline；When the water level in water tank reaches 4/5 water tank volume, self priming pump quits work；
(3) raw water in water tank enters into reverse osmosis concentration unit through high-pressure pump supercharging by pipeline, and reverse osmosis membrane can retain former
Solvable inorganic salt in water and DOM, obtain pure water and concentrated water；Pure water is directly discharged to elution device and is stored, many
Remaining pure water passes through the discharge outlet discharge of elution device upper end；Concentrated water removes cation through ion interchange unit C and is recycled into water tank, when
When the dissolved organic carbon content that dissolved organic carbon on-line determination device in water tank measures reaches preset value, stop concentrating；
Hydrogen type cation exchange resin in ion interchange unit C should ensure that q.s or timely activation；
(4) start acid-base value adjustment unit, metering dosing pump receives pH sensor signal and starts acid solution addition program, by first
Passage from first acid solution chemical tank extract acid solution pass through the first acid-resistant pipeline to water tank inject non-oxidizable acid solution, water tank simultaneously
Middle stirring motor starts so that acid solution and concentrated water uniformly mix, and until reaching default pH value, metering dosing pump first passage adds
Acid solution program stopped works, and pH sensor lifting platform rises pH sensor probe；
Metering dosing pump extracts Fluohydric acid., by the second acid-resistant pipeline to water tank by second channel from the second acid solution chemical tank
Middle injection Fluohydric acid., until reaching default hydrofluoric acid concentration, metering dosing pump and water tank stirring motor quit work；
(5) complete pH value to adjust and Fluohydric acid. addition, and stand the concentrated water after 24h to flow successively through primary adsorption enrichment by pipeline
Device and secondary absorption enriching apparatus, after the completion of absorption, close the company between primary adsorption device and secondary absorption enriching apparatus
Port valve, closes the connection valve between primary adsorption enriching apparatus and ion interchange unit A, opens elution device and primary adsorption
Communicating valve between enriching apparatus, opens the waste liquid waste cock of primary adsorption enriching apparatus bottom, the pure water in elution device
By pipe flushing primary adsorption enriching apparatus, flushing waste is discharged by waste liquid waste cock, completes primary adsorption enrichment dress
The flushing put, closes the waste liquid waste cock of primary adsorption enriching apparatus bottom, closes elution device and primary adsorption enrichment dress
Communicating valve between putting；
Open the communicating valve between elution device and ion interchange unit A, the waste liquid discharge opening ion interchange unit A bottom is opened
Close, the pure water in elution device passes through pipe flushing ion interchange unit A, and flushing waste is discharged by waste liquid waste cock, complete
Become the flushing of ion interchange unit A, close the waste liquid waste cock of ion interchange unit A bottom, close elution device and ion
Communicating valve between switch A；
Close the connection valve between secondary absorption enriching apparatus and ion interchange unit B, open elution device and secondary absorption
Communicating valve between enriching apparatus, opens the waste liquid waste cock of secondary absorption enriching apparatus bottom, the pure water in elution device
By pipe flushing secondary absorption enriching apparatus, flushing waste is discharged by waste liquid waste cock, completes secondary absorption enrichment dress
The flushing put, closes the waste liquid waste cock of secondary absorption enriching apparatus bottom, closes elution device and secondary absorption enrichment dress
Communicating valve between putting；
Open the communicating valve between elution device and ion interchange unit B, the waste liquid discharge opening ion interchange unit B bottom is opened
Close, the pure water in elution device passes through pipe flushing ion interchange unit B, and flushing waste is discharged by waste liquid waste cock, complete
Become the flushing of ion interchange unit B, close the waste liquid waste cock of ion interchange unit B bottom, close elution device and ion
Communicating valve between switch B；
(6) primary adsorption enriching apparatus, secondary absorption enriching apparatus, ion interchange unit A, ion interchange unit B flushing are completed
Afterwards, close the communicating valve between primary adsorption device and secondary absorption enriching apparatus, open chemicals dosing plant and be enriched with primary adsorption
Communicating valve between device, opens the communicating valve between primary adsorption enriching apparatus and ion interchange unit A, and chemicals dosing plant passes through
Alkaline-resisting pipeline injects alkali liquor in primary adsorption enriching apparatus, is occurred in the presence of alkali liquor by the DOM of resin absorption
Desorbing, the effluent after desorbing is discharged after the hydrogen type cation exchange resin in ion interchange unit A, described ion exchange dress
Put the hydrogen type cation exchange resin in A and should ensure that q.s or timely activation, the liquid mark discharged is that primary adsorption is rich
Liquid collecting；
Close the communicating valve between chemicals dosing plant and primary adsorption enriching apparatus, open chemicals dosing plant and secondary absorption enriching apparatus
Between communicating valve, open the communicating valve between secondary absorption enriching apparatus and ion interchange unit B, chemicals dosing plant pass through alkaline-resisting
Pipeline injects alkali liquor in secondary absorption enriching apparatus, is solved in the presence of alkali liquor by the DOM of resin absorption
Inhale, the effluent after desorbing is discharged after the hydrogen type cation exchange resin in ion interchange unit B, described ion interchange unit
Hydrogen type cation exchange resin in B should ensure that q.s or timely activation, and the liquid mark discharged is that secondary absorption is enriched with
Liquid；
Merge primary adsorption pregnant solution and secondary absorption pregnant solution, after lyophilization, be high-purity poisons in freshwater DOM powder
Last solid.
9., as the two-stage alkali cleaning formula extraction element using method of DOM in claim 8 poisons in freshwater, its feature exists
In the discharge line of reverse osmosis units pure water is provided with flow speed control valve, and the discharge line of described reverse osmosis units concentrated water is provided with tune
Fast valve, the pure water amount that reverse osmosis membrane is discharged is 1 with the ratio of the concentrated water amount discharged:9-9:1.
10., as the two-stage alkali cleaning formula extraction element using method of DOM in claim 8 poisons in freshwater, its feature exists
In described first acid-resistant pipeline requires to bear the non-oxidizing acid of 10mol/L；Described second acid-resistant pipeline requires to bear
The Fluohydric acid. of 6mol/L；Described water tank requires to bear 1mol/L strong acid and 0.5mol/L Fluohydric acid.；In described chemicals dosing plant
Alkali liquor is the highly basic of 0.1mol/L；Described alkaline-resisting requirements for pipes can bear the highly basic of 0.5mol/L, the preset value of described water tank pH
For 0.5-3.
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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 |
| CN103143192A (en) * | 2013-02-27 | 2013-06-12 | 中国环境科学研究院 | Program-controlled device and method for separating water-soluble organic matter ingredients |
| 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 |
| CN105347593A (en) * | 2015-11-16 | 2016-02-24 | 浙江工业大学 | Method for extraction separation of dissoluble organic matters in fresh water |
-
2016
- 2016-10-21 CN CN201610920472.8A patent/CN106396172B/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 |
| CN103143192A (en) * | 2013-02-27 | 2013-06-12 | 中国环境科学研究院 | Program-controlled device and method for separating water-soluble organic matter ingredients |
| 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 |
| CN105347593A (en) * | 2015-11-16 | 2016-02-24 | 浙江工业大学 | Method for extraction separation of dissoluble organic matters in fresh water |
Non-Patent Citations (2)
| Title |
|---|
| 王立英等: "应用XAD系列树脂分离和富集天然水体中溶解有机质的研究进展", 《地球与环境》 * |
| 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》 * |
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