CN106396172B - The two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater - Google Patents
The two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater Download PDFInfo
- Publication number
- CN106396172B CN106396172B CN201610920472.8A CN201610920472A CN106396172B CN 106396172 B CN106396172 B CN 106396172B CN 201610920472 A CN201610920472 A CN 201610920472A CN 106396172 B CN106396172 B CN 106396172B
- Authority
- CN
- China
- Prior art keywords
- water
- enriching apparatus
- unit
- ion interchange
- interchange unit
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The invention provides the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater, 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；Wherein, the finished fluid extraction unit includes primary adsorption enriching apparatus, ion interchange unit A, secondary absorption enriching apparatus, ion interchange unit B, elution device and chemicals dosing plant；Primary adsorption enriching apparatus, secondary absorption enriching apparatus and respective correspondence ion interchange unit are adsorbed to DOM in concentrated water, purified in finished fluid extraction unit, high concentration extract solution is obtained, is high-purity poisons in freshwater DOM powder solid after freeze-drying.The two-stage alkali cleaning formula extraction element of DOM is simple in construction, easy to operate in the poisons in freshwater that the present invention is provided.
Description
Technical field
The present invention relates to the two-stage alkali cleaning formula extraction that organic matter extracts DOM in field, more particularly to poisons in freshwater
Device.
Background technology
DOM can 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 include the acidic materials such as humic acid, fulvic acid and polypeptide, it is many
The small-molecule substances such as sugar, amino acid.Wherein, the small-molecule substance such as polypeptide, polysaccharide, amino acid, proportion is small, it is easy to aquatic
Biological utilisation and decompose.DOM is mainly big including the acidic materials molecular weight such as humic acid, fulvic acid, 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
Concentration is between 0.1-10mg/L, and it is separated and enrichment is the difficult point of DOM research.
Reverse osmosis technology be in the presence of higher than solution osmotic pressure, according to macromolecular substances can not through pellicle and incite somebody to action
These materials and water are separated.The membrane aperture of reverse osmosis membrane is very small, therefore, it is possible to effectively go water removal in dissolved salts,
Colloid, microorganism, organic matter etc..Counter-infiltration has salt rejection rate high, and mechanical strength is big and service life is long, 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 the pretreatment unit of low-concentration organic composition analysis in water a kind of, including raw water box, concentrated water case
And fresh-water tank；First pipeline is set and through first pipeline communication, on the pipeline of the first pipeline between raw water box and fresh-water tank
Water intaking valve, Feed Pressurization pump and cartridge filter are set gradually, Feed Pressurization pump is located at the upstream of cartridge filter；Concentrated water case
Second pipe is set between fresh-water tank and connected through the second pipe, one-level supercharging is disposed with the pipeline of second pipe
Pump and first-stage reverse osmosis film, one-level booster pump are 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, the 3rd pipeline are set between the concentrated water outlet of first-stage reverse osmosis film and concentrated water case and through the 3rd pipe
Road is connected, and one-level zwitterion mixed-bed resin Filter column is provided with the pipeline of the 3rd pipeline.
Chinese utility model patent (application number：201020694245.6, title：Dissolved organic matter is enriched with a kind of water
Piece-rate system) dissolved organic matter concentration and separation system in a kind of water is disclosed, including pre-filtrating equipment (1), macroreticular resin are filled out
Fill post (2), resin cation packed column (3), resin anion (R.A.) packed column (4), organic carbon in-line analyzer (5), peristaltic pump
(6), pH meter (7), measuring pump (8-13), magnetic valve (14-17), glass container (18-25), liquid storage bottle (26-29)；This practicality is new
Type realizes that dissolved organic matter is in resin packed column in water by controlling the switch of magnetic valve (14-17) and measuring pump (8-13)
On enrichment and separation, the switch of magnetic valve and dosing pump controlled by pH meter (7) and organic carbon in-line analyzer (5) respectively
System.
First utility model can realize by cation and anion exchange mixed bed Filter column go water removal in anion, sun from
Son, the need for disclosure satisfy that the composition parsing of the organic matters such as infrared, nuclear-magnetism；But there is also following defect：1. organic matter is mainly sub-
Component is macromolecule organic acid (such as humic acid, fulvic acid accounts for 50-90%), and the overwhelming majority is rich in neutral and weakly acidic pH water body
In acid and humic acid ionization be anion, the utility model using anion exchange resin remove water body in anion while,
Organic matter can be largely adsorbed, causes acid ingredient in organic matter to lose.The albuminoid class organic matter in organic matter is both sexes simultaneously
Material, it is anion that can not only have been ionized in water body but also can to ionize be cation, the utility model anions and canons hybrid switching
Resin can largely adsorb albuminoid class organic matter, cause albuminoid class organic composition to lose.2. this utility model patent is only fitted
For fresh water organic matter, and it is inapplicable to be extracted for seawater organic matter, because containing substantial amounts of sodium ion in seawater, reverse osmosis
Easily cause the crystalline deposit of sodium chloride thoroughly, damage the operation of equipment；3. this utility model patent uses zwitterion mixed bed tree
Fat Filter column removes calcium ion, magnesium ion, chlorion, sulfate ion etc. in water removal, rather than uses international XAD resin
Absorptive collection organic matter is carried out, the concentration ratio for the organic matter that this mode is collected is relatively low, it is impossible to meet in experimentation to highly concentrated
Spend the demand of organic matter.Therefore, there is certain defect in the utility model in the design process, make to account for the main subfraction of organic matter
Macromolecule organic acid and albuminoid class organic matter lose.Therefore, the utility model can not extract the whole organic matters of whole water bodys
Component, in addition, this utility model is complicated, it is impossible to realize effective Automated condtrol, exploitativeness is not good.
Second utility model can realize the enrichment and separation of dissolved organic matter in water automatically, but be only limited to organic
The separation of thing, and automaticity is not high, complex steps, inconvenient operation and the organic matter that can not obtain high concentration；In addition, first
First above-mentioned utility model patent is only applicable to the separation of sewage and useless Organic substance in water, is completely inapplicable for fresh water or seawater
's；Secondly, nanofiltration process of osmosis is not present in system disclosed in above-mentioned utility model patent, cause the separative efficiency of organic matter compared with
It is low；Again, the general organic matter of international humic acid association (IHSS) is divided into humic acid and fulvic acid, in the absence of in the utility model
The components such as disclosed hydrophilic acidic, hydroneutral, hydrophilic-basic, hydrophobic base, hydrophobic acid, hydrophobic neutrality, and it is above-mentioned several
Component is different from the component for the organic matter that the present invention is protected.
The content of the invention
In order to obtain certain density poisons in freshwater organic matter extract solution, and high-purity organic matter solid is obtained, the present invention
There is provided the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater, the dissolving in raw water effectively can be easily extracted
Organic matter.
In order to solve the above-mentioned technical problem, the two-stage alkali cleaning formula of DOM extracts dress in poisons in freshwater of the invention
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；
The 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, entrance and tank outlet, the elution of the primary adsorption enriching apparatus
The outlet of device, the outlet connection of chemicals dosing plant, the outlet of primary adsorption enriching apparatus and ion interchange unit A entrance, two
The entrance connection of level adsorption and enrichment column device, the bottom of primary adsorption enriching apparatus is provided with waste liquid waste cock；
The outlet of the entrance and elution device of the secondary absorption enriching apparatus, the outlet connection of chemicals dosing plant, two grades of suctions
The outlet of attached enriching apparatus is connected with ion interchange unit B entrance, and the bottom of secondary absorption enriching apparatus is discharged provided with waste liquid
Switch；
The outlet of the elution device is connected with the entrance of the ion interchange unit A, ion interchange unit B entrance；
The primary adsorption enriching apparatus includes adsorption column and filler, and the filler is described to fill out in the adsorption column
Expect for the one or more in XAD-8 resins, DAX-8 resins and XAD-7 resins；The ion interchange unit A includes adsorption column
And filler, the filler is in the adsorption column, and the filler is hydrogen type cation exchange resin；
The secondary absorption enriching apparatus includes adsorption column and filler, and the filler is described to fill out in the adsorption column
Expect for XAD-4 resins；The ion interchange unit B includes adsorption column and filler, and the filler is described in the adsorption column
Filler is hydrogen type cation exchange resin.
Preferably, the water tank uses acid resisting material, and it is provided with closure above, and lower end is funnel shaped, is provided with it
Agitator, liquid level sensor and pH sensors；The end face of the closure is provided with least five through hole；The water tank and described one
Pipeline between level adsorption and enrichment device gos deep into water tank, is sealing structure at the top of pipeline, and duct wall is 50 μ provided with multiple apertures
M hole, the minimum altitude in hole is controlled at the 1/100-1/10 of tank height, and the tank pipe that stretches into is externally provided with filter mantle,
The aperture of the filter mantle is 100 μm.
Preferably, the acid-base value adjustment unit includes pH sensors, agitator, metering dosing pump, the first acid solution medicine
Agent case and the second acid solution chemical tank；The pH sensors are located in water tank, the first acid solution chemical tank and the second acid solution medicament
Case is arranged in juxtaposition；The metering dosing pump is located between the first acid solution chemical tank, the second acid solution chemical tank and water tank, measures dosing
Outlet, the outlet of the second acid solution chemical tank of the entrance of pump respectively with the first acid solution chemical tank are connected, and measure the outlet of dosing pump
It is connected with water tank.
Preferably, the reverse osmosis concentration unit includes reverse osmosis units, high-pressure pump, ion interchange unit C, the first conductance
Rate is popped one's head in and the second conductivity probe；Wherein reverse osmosis units include reverse osmosis membrane and stainless steel putamina, the reverse osmosis membrane
Aperture value is 0.1nm；
First conductivity probe is exported between ion interchange unit C located at the reverse osmosis units concentrated water, and second
Between pure water outlet and elution device of the conductivity probe located at reverse osmosis units；Number is detected by contrasting two conductivity probes
Value, it can be determined that whether reverse osmosis membrane working condition is good.
Preferably, the reverse osmosis units are provided with liquid-inlet, concentrated water outlet and pure water outlet；The liquid-inlet passes through
High-pressure pump is connected with water tank, and the concentrated water outlet be connected with ion interchange unit C entrances, the ion interchange unit C export and
Water tank is connected, and the ion interchange unit C includes adsorption column and filler, and the filler is in the adsorption column, the filler
For hydrogen type cation exchange resin；The pure water outlet is connected with the entrance of elution device；The reverse osmosis units concentrated water and pure
Water out is equipped with security valve；The elution device upper end is provided with discharge outlet, for discharging excessive pure water.
Preferably, the reverse osmosis units concentrated water and pure water outlet are equipped with security valve, raw water concentration process, described anti-
When permeation unit pure water and concentrated water electrical conductivity difference are less than preset value, the security valve is opened, and illustrates that now system can not be carried out
Reverse osmosis concentration.
Preferably, the pretreatment unit includes the accurate micro-filtration filter of one-level and two grades of accurate micro-filtration filters, one-level
The aperture of precision Filter element is 1 μm in accurate micro-filtration filter, and the aperture of precision Filter element is 0.45 μ in two grades of accurate micro-filtration filters
m；The outlet of the entrance and self priming pump of the accurate micro-filtration filter of the one-level is connected, the outlet and two of one-level precision micro-filtration filter
The entrance connection of the accurate micro-filtration filter of level, the outlet of two grades of accurate micro-filtration filters is connected with water tank.
Preferably, one-level, two grades of precision Filter elements use polypropylene filter core, and precision Filter element needs timely replacing, can kept away
Exempt to block and excessive contaminants cooperating microorganisms.
Preferably, raw water feed unit uses self-priming water supplying pump, and raw water is mainly the fresh water water such as rivers and lakes and underground water
Body, the turbidity of raw water quality is within 1000NTU, and the value of dissolved organic carbon is within 1000mg/l, and electrical conductivity value exists
Within 30000 μ S/cm；The front end of self priming pump is provided with filter bag, and the aperture of the filter bag is 5 μm.
Preferably, the general control system includes control unit and touch screen device, and the controllable unit is connected with touch screen device,
The controllable unit is connected with self priming pump, liquid level sensor, pH sensors, metering dosing pump and high-pressure pump；The pH sensings
Device is provided with lifting platform, if necessary can rise to pH sensors outside water tank.
Preferably, liquid level sensor is provided with the water tank, its height of water level controls the 1/5-4/5 in tank height.
The two-stage alkali cleaning formula extraction element of DOM in the poisons in freshwater is utilized present invention also offers a kind of
Application method, it comprises the following steps：
(1) the general supply start button of general control system is started；
(2) self priming pump start button is started, 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 accurate micro-filtration filter of one-level that the raw water after filtering 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 filter, filtering
Raw water afterwards enters water tank by pipeline；When the water level in water tank reaches 4/5 water tank volume, self priming pump is stopped；
(3) raw water in water tank is pressurized through high-pressure pump and enters reverse osmosis concentration unit by pipeline, and reverse osmosis membrane can be cut
Solvable inorganic salts and the DOM in raw water are stayed, pure water and concentrated water is obtained；Pure water is directly discharged to elution device and deposited
Storage, unnecessary pure water is discharged by elution device upper end discharge outlet；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 is determined reaches preset value, stops
Concentration；Hydrogen type cation exchange resin in ion interchange unit C should ensure that sufficient amount or in time activation；Reverse osmosis membrane is by rivers
The poisons in freshwater such as lake and underground water is separated into pure water and concentrated water, and pure water is than higher, and concentrated water saliferous rate and organic matter concentration are higher,
But too high pure water ratio is damaged to reverse osmosis membrane, therefore, pure water amount and the concentrated water amount of discharge of reverse osmosis membrane discharge
Ratio is 1:9-9:1, preferably 1:2-2:1；
(4) acid-base value adjustment unit is started, metering dosing pump receives pH sensor signals and starts acid solution addition program, passes through
First passage extracts acid solution from the first acid solution chemical tank and non-oxidizable acid solution is injected into water tank by the first acid-resistant pipeline, simultaneously
Stirring motor starts in water tank so that acid solution and concentrated water are uniformly mixed, and until reaching default pH value, metering dosing pump first leads to
Road acid liquid program stopped work, pH sensors lifting platform rises pH sensor probes；
Metering dosing pump hydrofluoric acid is extracted from the second acid solution chemical tank by second channel, by the second acid-resistant pipeline to
Hydrofluoric acid is injected in water tank, until reaching default hydrofluoric acid concentration, metering dosing pump and water tank stirring motor are stopped；
(5) pH value regulation is completed and hydrofluoric acid is added, and stand the concentrated water after 24h that primary adsorption is flowed successively through by pipeline
Enriching apparatus and secondary absorption enriching apparatus, after the completion of absorption, are closed between primary adsorption device and secondary absorption enriching apparatus
Communicating valve, the connection valve closed between primary adsorption enriching apparatus and ion interchange unit A opens elution device and one-level
Communicating valve between adsorption and enrichment device, is opened in the waste liquid waste cock of primary adsorption enriching apparatus bottom, elution device
Pure water is discharged by pipe flushing primary adsorption enriching apparatus, flushing waste 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；
The communicating valve between elution device and ion interchange unit A is opened, the waste liquid row of ion interchange unit A bottoms is opened
The pure water gone out in switch, elution device is by pipe flushing ion interchange unit A, and flushing waste is arranged by waste liquid waste cock
Go out, complete ion interchange unit A flushing, close the waste liquid waste cock of ion interchange unit A bottoms, close elution device with
Communicating valve between ion interchange unit A；
The connection valve closed between secondary absorption enriching apparatus and ion interchange unit B, opens elution device and two grades
Communicating valve between adsorption and enrichment device, is opened in the waste liquid waste cock of secondary absorption enriching apparatus bottom, elution device
Pure water is discharged by pipe flushing secondary absorption enriching apparatus, flushing waste 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；
The communicating valve between elution device and ion interchange unit B is opened, the waste liquid row of ion interchange unit B bottoms is opened
The pure water gone out in switch, elution device is by pipe flushing ion interchange unit B, and flushing waste is arranged by waste liquid waste cock
Go out, complete ion interchange unit B flushing, close the waste liquid waste cock of ion interchange unit B bottoms, 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, the communicating valve closed between primary adsorption device and secondary absorption enriching apparatus opens 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 lye is injected into primary adsorption enriching apparatus by alkaline-resisting pipeline, by the DOM of resin adsorption in the presence of alkali lye
Desorb, the efflux after desorption is discharged after the hydrogen type cation exchange resin in ion interchange unit A, the ion is handed over
Hydrogen type cation exchange resin in changing device A should ensure that sufficient amount or in time activation, and the liquid mark discharged is inhaled for one-level
Attached pregnant solution；
The communicating valve closed between chemicals dosing plant and primary adsorption enriching apparatus, opens chemicals dosing plant and is 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 lye into secondary absorption enriching apparatus, is occurred by the DOM of resin adsorption in the presence of alkali lye
Desorption, the efflux after desorption is discharged after the hydrogen type cation exchange resin in ion interchange unit B, the ion exchange dress
Put the hydrogen type cation exchange resin in B and should ensure that sufficient amount or in time activation, the liquid mark discharged is that secondary absorption is rich
Liquid collecting；
Merge primary adsorption pregnant solution and secondary absorption pregnant solution, be that high-purity poisons in freshwater dissolving is organic after freeze-drying
Matter powder solid.
Preferably, the discharge line of reverse osmosis units pure water is provided with flow speed control valve, the reverse osmosis units concentrated water discharge pipe
Road is provided with flow speed control valve, and the pure water amount of reverse osmosis membrane discharge is 1 with the ratio of the concentrated water amount of discharge:9-9:1.
Preferably, the first acid-resistant pipeline requirement can bear 10mol/L non-oxidizing acid；Second acid-resistant pipeline
It is required that 6mol/L hydrofluoric acid can be born；The water tank requirement can bear 1mol/L strong acid and 0.5mol/L hydrofluoric acid；It is described to add
The highly basic that alkali lye in medicine device is 0.1mol/L；The alkaline-resisting requirements for pipes can bear 0.5mol/L highly basic, the water tank
PH preset value is 0.5-3.
Preferably, the front end of the high-pressure pump is provided with pressure gauge and security valve, raw water concentration process, before the high-pressure pump
When pressure is more than preset value, the security valve is opened, it is to avoid high-pressure pump is damaged and pipeline burst phenomenon.
Preferably, the front end of the self priming pump, which is provided with safety valve, the water tank, is provided with liquid level sensor, and its water level is in water
During 4/5 water tank volume of case, the safety 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 stainless steel putamina, if equipment leaves unused super for some reason
70h is crossed, reverse osmosis membrane should be soaked in clean water, if long-term leave unused must be sealed up for safekeeping by reverse osmosis membrane requirement storage mode.
Preferably, general control system uses low-voltage distribution, and the voltage class of power supplying and distributing equipment is 220VAC, and 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 the effect being easily installed.
Compared with prior art the beneficial effect comprise that：
(1) present invention provide DOM in poisons in freshwater two-stage alkali cleaning formula extraction element is simple in construction, operation side
Just, DOM in poisons in freshwater can be easily and effectively extracted, the extract solution and solid powder of concentration needed for obtaining；
(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
The impurity such as suspension of larger particles in water has been effective filtered out, scuffing that particle debris causes to film has preferably been avoided, stifled
Plug and impacting with high pressure；And protection reverse osmosis membrane is fully achieved using filtering twice and deimpurity effect is gone；
(3) whole process of acid-base value adjustment unit regulation pH value is full automatic, saves labour, reduces production
Cost, the accuracy rate of the pH value of modulation is higher；
(4) ratio of the pure water amount discharged in reverse osmosis units and the concentrated water amount of discharge is preferably 2:1-1:2, and then can be with
Avoid pure water discharge excessive or the too small injury caused to film or device efficiency reduction；
(5) filler in reverse osmosis concentration unit intermediate ion switch C is hydrogen type cation exchange resin, can be anti-
The cation such as metal ion in concentrated water is effectively removed during osmosis concentration, possible flocculation in raw water concentration process is effectively prevented
And precipitation；
(6) filler in finished fluid extraction unit in primary adsorption enriching apparatus using XAD-8 resins, DAX-8 resins and
Filler in the one or more of XAD-7 resins, secondary absorption enriching apparatus uses XAD-4 resins, second resin GC-MS
The DOM in concentrated water can be more effectively enriched with, is removed to the impurity in concentrated water, the higher dissolving of concentration is obtained organic
Matter liquid.
Brief description of the drawings
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.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail.
Join shown in 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 matter purifying plant that the present invention is provided, 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 the accurate micro-filtration filter 2 of one-level, two grades of accurate micro-filtration filters 3；Reverse osmosis concentration unit includes anti-
Permeation unit 11, high-pressure pump 10, ion interchange unit C9 and dissolved organic carbon on-line monitoring equipment, wherein reverse osmosis units 11 are wrapped
Include reverse osmosis membrane and stainless steel putamina；Acid-base value adjustment unit includes pH sensors, 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 is mainly using automatic
Control, collection control operation therein is unified in switch board to be carried out, and can realize whole system and automatically control operation and manually operated.
Wherein, the entrance of the accurate micro-filter 2 of one-level is connected with the outlet of self priming pump 1, and the accurate micro-filter 2 of one-level goes out
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 sensors 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 entrance and the first acid solution chemical tank 6 of metering dosing pump 5, second
The outlet connection of acid solution chemical tank 7, the outlet of metering dosing pump 5 is connected with water tank 8；Reverse osmosis units 11 are provided with liquid-inlet,
Concentrated water is exported and pure water outlet；Liquid-inlet is connected by high-pressure pump 10 with water tank 8, and concentrated water outlet enters with ion interchange unit C9
Mouth connection, the ion interchange unit C9 outlets are connected with water tank 8, and the ion interchange unit C9 includes adsorption column and filler,
The filler is in the adsorption column, and the filler is hydrogen type cation exchange resin；Pure water outlet connects with elution device 14
Connect, the outlet of elution device 14 and the entrance, the entrance of secondary absorption enriching apparatus 18, ion exchange of primary adsorption enriching apparatus 16
The entrance connection of device A17 entrance, ion interchange unit B19, the upper end of elution device 14 is provided with discharge outlet, for discharging excess
Pure water.
The 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, entrance and the water tank 8 of primary adsorption enriching apparatus 16 go out
Mouth, the outlet of elution device 14, the outlet of chemicals dosing plant 15 connection, outlet and the ion exchange of primary adsorption enriching apparatus 16 are filled
A17 entrance, the entrance connection of secondary absorption enrichment column device 18 is put, the bottom of primary adsorption enriching apparatus 16 is arranged provided with waste liquid
Go out switch, entrance and the primary adsorption enriching apparatus 16 of the secondary absorption enriching apparatus 18 are exported, the outlet of elution device 14,
The outlet connection of chemicals dosing plant 15, the outlet of secondary absorption enriching apparatus 18 is connected with ion interchange unit B19 entrance, two grades
The bottom of adsorption and enrichment device 18 is provided with waste liquid waste cock；
Ion interchange unit A17 entrance is connected with the outlet of primary adsorption enriching apparatus 16, the outlet of elution device 14,
Ion interchange unit B19 entrance 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 is provided, 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 underground water, and the water quality requirement of raw water exists for the turbidity of water quality
Within 1000NTU, the value of dissolved organic carbon is within 1000mg/l, and electrical conductivity value is within 30000 μ S/cm.
General control system uses low-voltage distribution, and the voltage class of power supplying and distributing equipment is 220VAC, and sets low-voltage distribution cabinet, to
Process system power-equipment is powered.In addition, the switch board of independent operation is equipped with control system, and electric switch and electric member
Part is all concentrated in switch board, and power switch is protected with electrical control cubicles gate interlock, can be reached dust-proof, rapid heat dissipation and is easily installed
Effect.
General supply and start button are first turned on, makes whole system in running order, self priming pump 1 is drawn former by pipeline
Water, raw water is tentatively filtered by the filter bag positioned at self priming pump front end, and the aperture of filter bag is 5 μm, by preliminary filtering
Raw water pass through the accurate micro-filtration filter 2 of one-level that the supercharging of self priming pump enters in pretreatment unit once mistake carried out to raw water
Filter, the raw water after once filtering enters two grades of accurate micro-filtration filters 3 and carries out secondary filter, the wherein accurate micro-filtration filtering of one-level
Filter core aperture in device 2 is 1 μm, and the filter core aperture in two grades of accurate micro-filtration filters 3 is 0.45 μm, due in poisons in freshwater
Grain suspension is more, two grades of accurate micro-filtration filters series connection, and such a filter core aperture set can preferably filter out it is larger in water
The impurity such as particle suspensions, increase water quality, scuffing, blocking and the high pressure punching for more effectively avoiding particulate contaminant from causing film
Hit.In addition, precision Filter element needs timely change, it is to avoid block and cross multi-pollutant and gather cooperating microorganisms.
The liquid level that raw water after two grades of precise filtering device filterings is entered in water tank 8, water tank 8 by connecting pipe is passed
Sensor detects that, when water level reaches the 4/5 of water tank volume, liquid level sensor is sent out to general control system to the water level in water tank
Liquid level signal is sent, general control system is received after liquid level signal, is sent control signal to self priming pump 1, it is stopped, that is, stop
The water filling into water tank.
Raw water in water tank is pressurizeed the reverse osmosis membrane entered in reverse osmosis units 11 by high-pressure pump 10, and reverse osmosis membrane can be by
Soluble-salt and organic molecule are trapped in concentrated water in the fresh water such as surface water, underground water and running water；Its to solubilised state sodium from
The removal efficiency of son can reach 98% 96% or so；Pure water through reverse osmosis membrane is directly discharged to store up in elution device 14
Deposit, flow speed control valve is provided with reverse osmosis units 11 and the connecting pipe of elution device 14, pure water outflow reverse osmosis membrane can be adjusted
Speed, its speed adjustable range is 0-200L/h；Treat system after hours, the pure water in elution device 14 can be used to counter-infiltration
Film flush clean；Concentrated water through reverse osmosis membrane separation is back to water tank 8 after ion interchange unit C9 Adsorption cations
In, flow speed control valve is provided with reverse osmosis units 11 and ion interchange unit C9 connecting pipes, concentrated water outflow counter-infiltration can be adjusted
The speed of film, its speed adjustable range is 0-200L/h；The speed and concentrated water of pure water outflow reverse osmosis membrane flow out reverse osmosis membrane
Speed value is arranged in appropriate scope, and the ratio for making the pure water amount that reverse osmosis membrane is discharged and the concentrated water amount of discharge is 1:9-9:
1, and then can avoid because of the excessive velocities of pure water outflow or excessively slowly to the injury caused by reverse osmosis membrane or device efficiency reduction.It is dense
Water, which enters water tank, can circulate concentration, and so repeatedly, the water in raw water box is fewer and fewer, the concentration of salt content 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 is determined reaches preset value, stops
Only concentrate, close concentration systems.
Raw water concentrate during, avoid cocnentration factor too high as far as possible, cocnentration factor is higher, reverse osmosis membrane nearby saliferous rate and
Organic matter excessive concentration, can be damaged to reverse osmosis membrane, therefore, by concentrated water the content of organic matter control 10000mg/L with
Under.Reverse osmosis concentration unit concentrated water is exported is provided with the first conductivity probe 12, reverse osmosis units 11 between ion interchange unit C
Place is provided with the second conductivity probe 13 between elution device 14, is visited by contrasting the first conductivity probe 12 and the second electrical conductivity
It is first 13 detection numerical value, 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 first 13 detection is equal, it is possible to determine that Seepage occurs in reverse osmosis membrane.The outlet of the concentrated water of reverse osmosis units 11 and pure water
Place is additionally provided with security valve, in raw water concentration process, and the electrical conductivity difference of the concentrated water of reverse osmosis units 11 and pure water is 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 concentration, when water level is less than the 1/5 of water tank, security valve
Open, high-pressure pump shuts down, it is possible thereby to avoid high-pressure pump causes high-pressure pump to burn phenomenon when dallying；The front end of high-pressure pump
Pressure gauge is additionally provided with, when the pressure before high-pressure pump is more than preset value, security valve is opened, and 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
The cation such as metal ion in concentrated water is effectively removed in saturating concentration process, is effectively prevented 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 sufficient amount or living in time
Change；
After raw water concentration terminates, start 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 is passed to metering dosing pump 5 by pH sensors, and metering dosing pump startup acid solution adds journey
Sequence, extracts acid solution from the first acid solution chemical tank 6 by first passage and non-oxygen is injected into water tank by the first acidproof special pipeline
The property changed acid solution, while the stirring motor in water tank 8 starts so that acid solution and concentrated water are uniformly mixed, and pH value regulation are carried out, until pH
Value reaches the value pre-set, and metering dosing pump first passage acid liquid program stopped work, pH sensors lifting platform rises pH
Sensor probe；Metering dosing pump extracts hydrofluoric acid by second channel from the second acid solution chemical tank 7, passes through the second acidproof spy
Different pipeline injects hydrofluoric acid into water tank 8, and until reaching default hydrofluoric acid concentration, metering dosing pump is stopped.
The process of whole pH value regulation is full automatic, saves labour, reduces production cost, and the pH modulated
The accuracy of value is higher, and the process efficiency of preparation is also higher.During pH regulations, turn on agitator motor stirs agitator
Mix the water in water tank 8 so that flow into acid solution medicament therein and uniformly dissolve in water, local acid strength can be avoided higher or inclined
It is low.
Because water tank 8 uses acid resisting material, and it is provided with closure above, and the end face of closure is provided with least five through hole；
Lower end is funnel shaped, is conducive to the output of concentrated water；Agitator and pH sensors are provided with it；PH sensors are provided with lifting platform,
After the completion of pH value regulation, lifting platform can rise to pH sensors on the water surface；
Pipeline between water tank and primary adsorption enriching apparatus 16 gos deep into water tank, is sealing structure, pipeline at the top of pipeline
Wall is provided with the hole that multiple apertures are 50 μm, and the minimum altitude in hole is controlled at the 1/100-1/10 of tank height, described to stretch into water
Case pipeline is externally provided with filter mantle, and the aperture of the filter mantle is 100 μm；It is more beneficial for the impurity isolated in concentrated water.
Complete pH value regulation and hydrofluoric acid added, and stand the concentrated water after 24h that primary adsorption richness is flowed successively through 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, the connection valve closed between primary adsorption enriching apparatus 16 and ion interchange unit A17 opens elution
Communicating valve between device 14 and primary adsorption enriching apparatus 16, the waste liquid discharge for opening the bottom of primary adsorption enriching apparatus 16 is opened
Close, the pure water in elution device 14 is by pipe flushing primary adsorption enriching apparatus 16, and flushing waste passes through waste liquid waste cock
Discharge, completes the flushing of primary adsorption enriching apparatus 16, closes the waste liquid waste cock of the bottom of primary adsorption enriching apparatus 16, closes
The communicating valve closed between elution device 14 and primary adsorption enriching apparatus 16；
The connection valve closed between primary adsorption enriching apparatus 16 and ion interchange unit A17, opens elution device 14
Communicating valve between ion interchange unit A17, opens the waste liquid waste cock of ion interchange unit A17 bottoms, elution device
Pure water in 14 is by pipe flushing ion interchange unit A17, and flushing waste is discharged by waste liquid waste cock, completes ion and hands over
Changing device A17 flushing, closes the waste liquid waste cock of ion interchange unit A17 bottoms, closes elution device 14 and ion is handed over
Communicating valve between changing device A17；
The connection valve closed between secondary absorption enriching apparatus 18 and ion interchange unit B19, opens elution device 14
Communicating valve between secondary absorption enriching apparatus 18, opens the waste liquid waste cock of the bottom of secondary absorption enriching apparatus 18, drenches
Pure water in cleaning device 14 is by pipe flushing secondary absorption enriching apparatus 18, and flushing waste is discharged by waste liquid waste cock,
The flushing of secondary absorption enriching apparatus 18 is completed, the waste liquid waste cock of the bottom of secondary absorption enriching apparatus 18 is closed, closes and drenches
Communicating valve between cleaning device 14 and secondary absorption enriching apparatus 18；
The connection valve closed between secondary absorption enriching apparatus 18 and ion interchange unit B19, opens elution device 14
Communicating valve between ion interchange unit B19, opens the waste liquid waste cock of ion interchange unit B19 bottoms, elution device
Pure water in 14 is by pipe flushing ion interchange unit B19, and flushing waste is discharged by waste liquid waste cock, completes ion and hands over
Changing device B19 flushing, closes the waste liquid waste cock of ion interchange unit B19 bottoms, 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
Put after B19 flushings, the communicating valve closed between primary adsorption enriching apparatus 16 and secondary absorption enriching apparatus 18, open dosing dress
The communicating valve between 15 and primary adsorption enriching apparatus 16 is put, primary adsorption enriching apparatus 16 and ion interchange unit A17 is opened
Between communicating valve, chemicals dosing plant 15 injects alkali lye by alkaline-resisting special pipeline into primary adsorption enriching apparatus 16, by resin
The DOM of absorption is desorbed in the presence of alkali lye, and the efflux after desorption is through the hydrogen in ion interchange unit A17
Discharged after type cationic ion-exchange resin, the hydrogen type cation exchange resin in the ion interchange unit A17 should ensure that sufficient amount
Or activation in time, the liquid mark discharged is primary adsorption pregnant solution；
The communicating valve between chemicals dosing plant 15 and secondary absorption enriching apparatus 18 is opened, secondary absorption enriching apparatus 18 is opened
Communicating valve between ion interchange unit B19, chemicals dosing plant 15 is by alkaline-resisting special pipeline to secondary absorption enriching apparatus 18
Middle injection alkali lye, is desorbed by the DOM of resin adsorption in the presence of alkali lye, and the efflux after desorption is through ion
Discharged after hydrogen type cation exchange resin in switch B19, the hydrogen form cation in the ion interchange unit B19 is exchanged
Resin should ensure that sufficient amount or in time activation, and the liquid mark discharged is secondary absorption pregnant solution；
Merge primary adsorption pregnant solution and secondary absorption pregnant solution, be that high-purity poisons in freshwater dissolving is organic after freeze-drying
Matter powder solid.
The primary adsorption enriching apparatus includes adsorption column 16 and filler, and the filler is described in the adsorption column
Filler is the one or more in XAD-8 resins, DAX-8 resins and XAD-7 resins；The ion interchange unit A17 includes inhaling
Attached column and filler, the filler is in the adsorption column, and the filler is hydrogen type cation exchange resin；
The secondary absorption enriching apparatus includes adsorption column 18 and filler, and the filler is described in the adsorption column
Filler is XAD-4 resins；The ion interchange unit B19 includes adsorption column and filler, and the filler is located in the adsorption column,
The filler is hydrogen type cation exchange resin；
Complete after a working cycles, self priming pump is restarted, into next working cycles.When the water body content of organic matter
When relatively low, more than 1 water inlet of self priming pump can be passed through so that concentrated water dissolved organic carbon concentration reaches preset value in water tank 8, then carries out
Next step acid-base value is adjusted.
After organic matter extraction terminates, the discharge outlet of water tank is closed, the pure water being stored in elution device 14 is imported into water tank,
Start concentration, concentrated water valve is reached into maximum, the cleaning of reverse osmosis membrane is realized to washing away for film using pure water.Reverse osmosis membrane is forbidden to do
Dry storage, it is necessary to assure have water in putamina, if for some reason more than 70h without using, reverse osmosis membrane should be soaked in clean water, if
Long-term leave unused must be sealed up for safekeeping by reverse osmosis membrane requirement storage mode.Gained pure water is stored in elution dress during poisons in freshwater organic matter is extracted
14 are put, rinses to provide for reverse osmosis membrane and uses water, the practical problem that field pure water is difficult to obtain successfully is solved.Described above one
The detailed description of series is illustrated only for the feasibility embodiment of the present invention, and they are not to limit this
The protection domain of invention, in the knowledge that the technical field those of ordinary skill possesses, is not 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 (9)
1. the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater, including it is 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；
The 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, entrance and tank outlet, the elution device of the primary adsorption enriching apparatus
Outlet, the outlet connection of chemicals dosing plant, the outlet of primary adsorption enriching apparatus and ion interchange unit A entrance, two grades of suctions
The entrance connection of attached enrichment column device, the bottom of primary adsorption enriching apparatus is provided with waste liquid waste cock；
The outlet of the entrance and elution device of the secondary absorption enriching apparatus, the outlet connection of chemicals dosing plant, secondary absorption are rich
The outlet of acquisition means is connected with ion interchange unit B entrance, and the bottom of secondary absorption enriching apparatus is provided with waste liquid waste cock；
The outlet of the elution device is connected with the entrance of the ion interchange unit A, ion interchange unit B entrance；
The primary adsorption enriching apparatus includes adsorption column and filler, and the filler is in the adsorption column, and the filler is
One or more in XAD-8 resins, DAX-8 resins and XAD-7 resins；The ion interchange unit A includes adsorption column and filled out
Material, the filler is in the adsorption column, and the filler is hydrogen type cation exchange resin；
The secondary absorption enriching apparatus includes adsorption column and filler, and the filler is in the adsorption column, and the filler is
XAD-4 resins；The ion interchange unit B includes adsorption column and filler, and the filler is in the adsorption column, the filler
For hydrogen type cation exchange resin；
The raw water feed unit includes self priming pump, and the pretreatment unit includes the accurate micro-filtration filter of one-level and two grades of precisions
Micro-filtration filter, one-level precision micro-filter entrance and self priming pump outlet connect, one-level precision micro-filter outlet with
The entrance connection of two grades of accurate micro-filters, the outlet of two grades of accurate micro-filters is connected with water tank；The reverse osmosis concentration list
Member include reverse osmosis units, high-pressure pump and ion interchange unit C, the reverse osmosis units provided with liquid-inlet, concentrated water outlet and
Pure water is exported；Liquid-inlet is connected by high-pressure pump with water tank, and concentrated water outlet is connected with ion interchange unit C entrances, and ion is handed over
Changing device C outlets are connected with water tank, and pure water outlet is connected with the entrance of elution device；The acid-base value adjustment unit is passed including pH
Sensor, agitator, metering dosing pump, the first acid solution chemical tank and the second acid solution chemical tank, pH sensors and agitator are located at water
In case, the entrance of metering dosing pump is connected with the outlet of the first acid solution chemical tank, the outlet of the second acid solution chemical tank, measures dosing
The outlet of pump is connected with water tank；
The water tank uses acid resisting material, and it is provided with closure above, and lower end is funnel shaped, is additionally provided with level sensing in it
Device；The end face of the closure is provided with least five through hole；Pipeline between the water tank and the primary adsorption enriching apparatus is deep
Enter in water tank, be sealing structure at the top of pipeline, duct wall is controlled in water provided with the hole that multiple apertures are 50 μm, the minimum altitude in hole
At the 1/100-1/10 of case height, the tank pipe that stretches into is externally provided with filter mantle, and the aperture of the filter mantle is 100 μm；
The general control system includes control unit, described control unit and self priming pump, liquid level sensor, pH sensors, metering
Dosing pump and high-pressure pump connection.
2. the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater as claimed in claim 1, it is characterised in that institute
State the first acid solution chemical tank and the second acid solution chemical tank is arranged in juxtaposition, the metering dosing pump is located at the first acid solution chemical tank, the
Between two acid solution chemical tanks and water tank.
3. the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater as claimed in claim 1, it is characterised in that institute
Stating reverse osmosis concentration unit also includes the first conductivity probe and the second conductivity probe；Wherein reverse osmosis units include counter-infiltration
Film and stainless steel putamina, the aperture value of the reverse osmosis membrane is 0.1nm；First conductivity probe is located at the counter-infiltration
Unit concentrated water is exported between ion interchange unit C, and the second conductivity probe is located at the pure water outlet and elution of reverse osmosis units
Between device.
4. the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater as claimed in claim 3, it is characterised in that institute
Stating ion interchange unit C includes adsorption column and filler, and the filler is in the adsorption column, and the filler is hydrogen form cation
Exchanger resin；The reverse osmosis units concentrated water and pure water outlet are equipped with security valve；The elution device upper end is provided with discharge outlet.
5. the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater as claimed in claim 1, it is characterised in that one
The aperture of precision Filter element is 1 μm in the accurate micro-filtration filter of level, and the aperture of precision Filter element is in two grades of accurate micro-filtration filters
0.45μm。
6. the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater as claimed in claim 1, it is characterised in that institute
Stating general control system also includes touch screen device, and described control unit is connected with touch screen device, and the pH sensors are provided with lifting platform.
7. utilize the two-stage alkali cleaning formula extraction element of DOM in the poisons in freshwater described in claim 1-6 any one
Application method, it is characterised in that it comprises the following steps：
(1) the general supply start button of general control system is started；
(2) self priming pump start button is started, 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 filtering, the accurate micro-filtration filter of one-level that the raw water after filtering 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 filter；After filtering
Raw water enters water tank by pipeline；When the water level in water tank reaches 4/5 water tank volume, self priming pump is stopped；
(3) raw water in water tank is pressurized through high-pressure pump and enters reverse osmosis concentration unit by pipeline, and reverse osmosis membrane can retain original
Solvable inorganic salts and DOM in water, obtain pure water and concentrated water；Pure water is directly discharged to elution device and stored, many
Remaining pure water is discharged by elution device upper end discharge outlet；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 is determined reaches preset value, stop concentration；
Hydrogen type cation exchange resin in ion interchange unit C should ensure that sufficient amount or in time activation；
(4) acid-base value adjustment unit is started, metering dosing pump receives pH sensor signals and starts acid solution addition program, passes through first
Passage extracts acid solution from the first acid solution chemical tank and non-oxidizable acid solution is injected into water tank by the first acid-resistant pipeline, while water tank
Middle stirring motor starts so that acid solution and concentrated water are uniformly mixed, and until reaching default pH value, metering dosing pump first passage adds
Acid solution program stopped works, and pH sensors lifting platform rises pH sensor probes；
Metering dosing pump extracts hydrofluoric acid by second channel from the second acid solution chemical tank, by the second acid-resistant pipeline to water tank
Middle injection hydrofluoric acid, until reaching default hydrofluoric acid concentration, metering dosing pump and water tank stirring motor are stopped；
(5) pH value regulation is completed and hydrofluoric acid is added, and stand the concentrated water after 24h that primary adsorption enrichment is flowed successively through by pipeline
Device and secondary absorption enriching apparatus, after the completion of absorption, the company closed between primary adsorption device and secondary absorption enriching apparatus
Port valve, the connection valve closed between primary adsorption enriching apparatus and ion interchange unit A opens elution device and primary adsorption
Communicating valve between enriching apparatus, opens the pure water in the waste liquid waste cock of primary adsorption enriching apparatus bottom, 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 is enriched with dress with primary adsorption
Communicating valve between putting；
The communicating valve between elution device and ion interchange unit A is opened, the waste liquid discharge for opening ion interchange unit A bottoms is opened
Close, the pure water in elution device is by pipe flushing ion interchange unit A, and flushing waste is discharged by waste liquid waste cock, complete
Into ion interchange unit A flushing, the waste liquid waste cock of ion interchange unit A bottoms is closed, elution device and ion is closed
Communicating valve between switch A；
The connection valve closed between secondary absorption enriching apparatus and ion interchange unit B, opens elution device and secondary absorption
Communicating valve between enriching apparatus, opens the pure water in the waste liquid waste cock of secondary absorption enriching apparatus bottom, 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 is enriched with dress with secondary absorption
Communicating valve between putting；
The communicating valve between elution device and ion interchange unit B is opened, the waste liquid discharge for opening ion interchange unit B bottoms is opened
Close, the pure water in elution device is by pipe flushing ion interchange unit B, and flushing waste is discharged by waste liquid waste cock, complete
Into ion interchange unit B flushing, the waste liquid waste cock of ion interchange unit B bottoms is closed, elution device and ion is closed
Communicating valve between switch B；
(6) primary adsorption enriching apparatus, secondary absorption enriching apparatus, ion interchange unit A, ion interchange unit B is completed to rinse
Afterwards, the communicating valve closed between primary adsorption device and secondary absorption enriching apparatus, opens chemicals dosing plant and is 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 lye into primary adsorption enriching apparatus, is occurred by the DOM of resin adsorption in the presence of alkali lye
Desorption, the efflux after desorption is discharged after the hydrogen type cation exchange resin in ion interchange unit A, the ion exchange dress
Put the hydrogen type cation exchange resin in A and should ensure that sufficient amount or in time activation, the liquid mark discharged is that primary adsorption is rich
Liquid collecting；The communicating valve closed between chemicals dosing plant and primary adsorption enriching apparatus, opens chemicals dosing plant and is enriched with dress with secondary absorption
Communicating valve between putting, opens the communicating valve between secondary absorption enriching apparatus and ion interchange unit B, chemicals dosing plant passes through resistance to
Alkali pipeline injects alkali lye into secondary absorption enriching apparatus, is solved by the DOM of resin adsorption in the presence of alkali lye
Inhale, the efflux after desorption is discharged after the hydrogen type cation exchange resin in ion interchange unit B, the ion interchange unit
Hydrogen type cation exchange resin in B should ensure that sufficient amount or in time activation, and the liquid mark discharged is enriched with for secondary absorption
Liquid；
Merge primary adsorption pregnant solution and secondary absorption pregnant solution, be high-purity poisons in freshwater DOM powder after freeze-drying
Last solid.
8. the application method of the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater as claimed in claim 7, its
It is characterised by, the discharge line of reverse osmosis units pure water is provided with flow speed control valve, the discharge line of the reverse osmosis units concentrated water
Provided with flow speed control valve, the pure water amount of reverse osmosis membrane discharge is 1 with the ratio of the concentrated water amount of discharge:9-9:1.
9. the application method of the two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater as claimed in claim 7, its
It is characterised by, the first acid-resistant pipeline requirement can bear 10mol/L non-oxidizing acid；Second acid-resistant pipeline requires energy
Bear 6mol/L hydrofluoric acid；The water tank requirement can bear 1mol/L strong acid and 0.5mol/L hydrofluoric acid；The chemicals dosing plant
In alkali lye be 0.1mol/L highly basic；The alkaline-resisting requirements for pipes can bear 0.5mol/L highly basic, and the water tank pH's is pre-
If value is 0.5-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610920472.8A CN106396172B (en) | 2016-10-21 | 2016-10-21 | The two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610920472.8A CN106396172B (en) | 2016-10-21 | 2016-10-21 | The two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106396172A CN106396172A (en) | 2017-02-15 |
| CN106396172B true CN106396172B (en) | 2017-09-12 |
Family
ID=58012558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610920472.8A Expired - Fee Related CN106396172B (en) | 2016-10-21 | 2016-10-21 | The two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106396172B (en) |
Family Cites Families (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 |
| CN103143192B (en) * | 2013-02-27 | 2014-11-19 | 中国环境科学研究院 | Program-controlled device and method for separating water-soluble organic matter ingredients |
| CN104230079B (en) * | 2013-06-19 | 2016-04-06 | 中国石油天然气股份有限公司 | Organic separation method in a kind of 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN106396172A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106365354B (en) | Hydrophobicity dissolves humic acid extraction element in a kind of poisons in freshwater | |
| CN106365353B (en) | Fulvic acid extraction element is dissolved 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 | |
| CN106315925B (en) | Organic matter concentration purifying plant and preparation method thereof in poisons in freshwater | |
| CN106477767B (en) | The equipment and its extracting method of fulvic acid in a kind of extraction poisons in freshwater | |
| US20150053626A1 (en) | Water filtration and treatment systems and methods | |
| 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 | |
| CN105948173A (en) | RO (reverse osmosis) water purification system and control method thereof | |
| CN106348513B (en) | A kind of counter-infiltration is combined the equipment for extracting fresh water organic matter with resin | |
| CN106396153B (en) | Humic acid extraction element and extracting method are dissolved in a kind of poisons in freshwater | |
| CN106430711B (en) | The device of fresh water organic matter is extracted using two-stage resin | |
| CN201263910Y (en) | Upward flow filtering equipment | |
| CN109250838A (en) | Pretreated purifier and process for purifying water are carried out using flue gas | |
| CN106430712B (en) | Using the device and preparation method of two-stage resin extraction fresh water fulvic acid | |
| CN106396172B (en) | The two-stage alkali cleaning formula extraction element of DOM in poisons in freshwater | |
| CN106519259B (en) | A kind of equipment for extracting water body fulvic acid | |
| CN210438529U (en) | Reproducible double-membrane filtration water purifying device | |
| CN101665295A (en) | Water treatment device, water treatment system and water treatment method thereof | |
| CN106496592B (en) | Equipment for extracting hydrophobic humic acid in water body | |
| CN106397790B (en) | The double property humic acid extraction equipments of hydrophilic-hydrophobic in a kind of water body | |
| WO2018072282A1 (en) | Apparatus for extracting fulvic acid in water body | |
| CN106872231B (en) | Soil hydrophobic fulvic acid component extraction purification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20170912 Termination date: 20201021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |