CN106430711B - The device of fresh water organic matter is extracted using two-stage resin - Google Patents
The device of fresh water organic matter is extracted using two-stage resin Download PDFInfo
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- CN106430711B CN106430711B CN201610920455.4A CN201610920455A CN106430711B CN 106430711 B CN106430711 B CN 106430711B CN 201610920455 A CN201610920455 A CN 201610920455A CN 106430711 B CN106430711 B CN 106430711B
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention provides the device that fresh water organic matter is extracted using two-stage resin, 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；Reverse osmosis concentration unit can separate pure water and concentrated water in the present invention, and concentrated water is again introduced into water tank, and circulation concentration closes concentration systems when cocnentration factor is suitable；Water pH value after concentration is adjusted acid-base value adjustment unit, and this regulation process is full automatic, not only saves labour, reduces production cost, and the accuracy rate of pH value regulation is higher；Primary adsorption enriching apparatus and secondary absorption enriching apparatus are adsorbed to organic matter in concentrated water, purified in finished fluid extraction unit, organic solvent produces high-purity fresh water organic matter solid powder after removing.The apparatus structure that the use two-stage resin that the present invention is provided extracts fresh water organic matter is simple and convenient to operate, and yield is high.
Description
Technical field
Field is extracted the present invention relates to organic matter, more particularly to using the device of two-stage resin extraction fresh water organic matter.
Background technology
Fresh water organic matter is can be by the class natural macromolecular organic admixture that aperture is 0.45 μm of filter membrane, and it originates
In animals and plants secretion and its Residue decay product, the Nomenclature Composition and Structure of Complexes changes with space-time and source.It is organic in poisons in freshwater
Matter has important ecological and environmental activity.Such as organic matter is to influence poisons in freshwater color and the main matter of taste, is water body
The important conditioning agent of acid-base value.It can interact with the nutritive salt such as nitrogen phosphorus, influence the fresh water aquatic ecosystem.Organic matter with
A large amount of hazardous contaminants in poisons in freshwater interact, so as to change the migration of pollutant, transformation rule and life
Thing utilizability.It can also react with disinfection of tap water agent, produce the carcinogenic teratogenesis DBPs such as haloform.Therefore
In recent years, the organic matter in poisons in freshwater causes extensive concern.Research shows that organic matter mainly includes corruption in poisons in freshwater
Grow the small-molecule substance such as the acidic materials such as acid, fulvic acid and polypeptide, polysaccharide, amino acid.Wherein, polypeptide, polysaccharide, amino acid etc.
Small-molecule substance, proportion is small, it is easy to utilized and decomposed by aquatile.The acidic materials such as humic acid, fulvic acid point
Son amount is big, it is difficult to degrade, and is main component in organic matter and pays close attention to object.In addition, organic matter contains in poisons in freshwater
Amount is extremely low, and general concentration is between 0.1-10mg/L, and it is separated and enrichment is the difficult point of organic matter 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 is realized to fresh water organic matter initial concentration using reverse osmosis technology.
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.
This utility model can realize the anion gone by cation and anion exchange mixed bed Filter column in water removal, cation,
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. the main subfraction of organic matter
For macromolecule organic acid (such as humic acid, fulvic acid accounts for 50-90%), most fulvic acid in neutral and weakly acidic pH water body
It is anion with humic acid ionization, can be big while the utility model removes anion in water body using anion exchange resin
Amount absorption organic matter, causes acid ingredient in organic matter to lose.The albuminoid class organic matter in organic matter is amphiprotic substance simultaneously,
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
Albuminoid class organic matter can be largely adsorbed, causes albuminoid class organic composition to lose.2. this utility model patent is only applicable to
Fresh water organic matter, and it is inapplicable to be extracted for seawater organic matter, because containing substantial amounts of sodium ion in seawater, counter-infiltration pole
Easily cause the crystalline deposit of sodium chloride, damage the operation of equipment；3. this utility model patent uses zwitterion mixed-bed resin mistake
Filter post removes calcium ion, magnesium ion, chlorion, sulfate ion etc. in water removal, rather than is carried out using international XAD resin
Absorptive collection organic matter, the concentration ratio for the organic matter that this mode is collected is relatively low, it is impossible to which meet in experimentation has to high concentration
The demand of machine matter.Therefore, there is certain defect in the utility model in the design process, make to account for the big of the main subfraction of organic matter
Molecular organic acids and albuminoid class organic matter are lost.Therefore, the utility model can not extract the whole organic matter fractions of whole water bodys,
In addition, this utility model is complicated, it is impossible to realize effective Automated condtrol, exploitativeness is not good.
The content of the invention
In order to obtain certain density extract solution, preferably using the organic matter in extract solution, the invention provides use
Two-stage resin extracts the device of fresh water organic matter, effectively can easily extract the organic matter in raw water.
In order to solve the above-mentioned technical problem, use two-stage resin of the invention extracts the device of fresh water organic matter, including original
Water feed unit, pretreatment unit, reverse osmosis concentration unit, acid-base value adjustment unit, finished fluid extraction unit, water tank and master control
System processed；
The finished fluid extraction unit includes primary adsorption enriching apparatus, secondary absorption enriching apparatus, elution device and added
Medicine device, the entrance of primary adsorption enriching apparatus outlet respectively with water tank, the outlet of elution device, chemicals dosing plant go out
Mouth connection；The outlet respectively with elution device of the entrance of the secondary absorption enriching apparatus, the outlet of chemicals dosing plant, primary adsorption
The outlet connection of enriching apparatus；
The bottom of primary adsorption enriching apparatus and secondary absorption enriching apparatus is equipped with waste cock；
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 secondary absorption enriching apparatus includes absorption
Post and filler, the filler is in the adsorption column, and the filler is XAD-4 resins；
The water tank uses acid resisting material, and it is provided with closure above, and lower end is funnel shaped, in it provided with agitator,
Liquid level sensor and pH sensors；The end face of the closure is provided with least five through hole；The water tank is rich with the primary adsorption
Pipeline between acquisition means gos deep into water tank, is sealing structure at the top of pipeline, duct wall is provided with the hole that multiple apertures are 50 μm, hole
Minimum altitude control at the 1/100-1/10 of tank height, the tank pipe that stretches into is externally provided with filter mantle, the filtering
The aperture of cover is 100 μm.
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 30000mS/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 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-filter of level, the outlet of two grades of accurate micro-filtration filters is connected with water tank.
Preferably, firsts and seconds precision Filter element uses polypropylene filter core, and precision Filter element needs timely replacing, can kept away
Exempt to block and excessive contaminants cooperating microorganisms.
Preferably, the reverse osmosis concentration unit includes reverse osmosis units, high-pressure pump, the first conductivity probe and the second electricity
Conductance is popped one's head in；Wherein reverse osmosis units include reverse osmosis membrane and stainless steel putamina, and the aperture value of the reverse osmosis membrane is
0.1nm；
First conductivity probe is located at the reverse osmosis units concentrated water exit, and the second conductivity probe is located at reverse osmosis
Between saturating unit pure water outlet and elution device；Numerical value is detected by contrasting two conductivity probes, it can be determined that reverse osmosis membrane
Whether 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 is connected with water tank, and the pure water outlet is connected with the entrance of elution device, described
Entrance, the entrance of secondary absorption enriching apparatus of the outlet of elution device respectively with primary adsorption enriching apparatus are connected；It is described to drench
Cleaning 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 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 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.
Extracting fresh water present invention also offers a kind of device for extracting fresh water organic matter using the use two-stage resin has
The method of machine matter, 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, preliminary by self priming pump front end filter bag
Raw water after filtering, the accurate micro-filtration filter of one-level entered by the supercharging of self priming pump in pretreatment unit carries out one to raw water
Secondary filtering, the raw water after once filtering enters two grades of accurate micro-filtration filters and carries out secondary filter, after being filtered through second
Raw water enters water tank by pipeline；
(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 natural organic matter in raw water are stayed, pure water and concentrated water is obtained；It is directly discharged to by the pure water of reverse osmosis membrane
Stored in elution device, unnecessary pure water is discharged by elution device upper end discharge outlet, and concentrated water is recycled into water tank, works as position
When the dissolved organic carbon content that dissolved organic carbon on-line determination device in water tank is determined reaches preset value, stop concentration；Instead
The poisons in freshwater such as rivers and lakes and underground water are separated into pure water and concentrated water by permeable membrane, and pure water concentrated water saliferous rate and has than higher
Machine matter concentration is higher, but too high pure water ratio is damaged to reverse osmosis membrane, therefore, pure water amount and the row of reverse osmosis membrane discharge
The ratio of the concentrated water amount gone out 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 through by pipeline successively
Enriching apparatus and secondary absorption enriching apparatus, complete absorption；After the completion of absorption, primary adsorption device and secondary absorption device are closed
Between valve, open the valve between elution device and primary adsorption enriching apparatus, and open primary adsorption enriching apparatus bottom
Pure water in the liquid waste cock in portion, elution device is by pipe flushing primary adsorption enriching apparatus, and flushing liquor passes through discharge
Switch discharge, completes the flushing of primary adsorption enriching apparatus, closes the liquid waste cock of primary adsorption enriching apparatus bottom, closes
The valve closed between elution device and primary adsorption enriching apparatus；After the flushing for completing primary adsorption enriching apparatus, dosing is opened
Valve between device and primary adsorption enriching apparatus, chemicals dosing plant is noted by resistance to organic pipeline into primary adsorption enriching apparatus
Enter nonpolar volatile organic solvent, sent out by the natural organic matter of resin adsorption in the presence of nonpolar volatile organic solvent
Raw desorption, collects efflux and is labeled as primary adsorption enriching apparatus eluent；
(6) complete after the elution of primary adsorption enriching apparatus；The valve closed between chemicals dosing plant and primary adsorption enriching apparatus
Door；The valve between elution device and secondary absorption enriching apparatus is opened, and opens the liquid of secondary absorption enriching apparatus bottom
Pure water in waste cock, elution device is by pipe flushing secondary absorption enriching apparatus, and flushing liquor is discharged by waste cock,
Complete the flushing of secondary absorption enriching apparatus, close the waste cock of secondary absorption enriching apparatus bottom, close elution device and
Valve between secondary absorption enriching apparatus；After the flushing for completing secondary absorption enriching apparatus, chemicals dosing plant and two grades of suctions are opened
Valve between attached enriching apparatus, chemicals dosing plant injects nonpolar volatilization into secondary absorption enriching apparatus by resistance to organic pipeline
Property organic solvent, desorbed by the natural organic matter of resin adsorption in the presence of nonpolar volatile organic solvent, collect
Efflux is labeled as secondary absorption enriching apparatus eluent；
Merge after primary adsorption enriching apparatus leacheate and secondary absorption enriching apparatus eluent, rotary evaporation, nitrogen blow or
Naturally volatilization obtains fresh water organic matter solid powder.
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, 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.
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
Nonpolar volatile organic solvent in medicine device and resistance to organic pipeline is methanol, ethanol or its mixture, the water tank pH's
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.
Compared with prior art the beneficial effect comprise that：
(1) present invention provides the apparatus structure for extracting fresh water organic matter using two-stage resin and is simple and convenient to operate, Ke Yifang
Just the fresh water organic matter solution of concentration needed for efficiently extracting, preferably using the organic matter in extract solution, and automates journey
Degree is high；
(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, are more had
The impurity such as suspension of larger particles in water has been filtered out to effect, scuffing, blocking that particle debris is caused to film is preferably avoided
And impacting with high pressure；In addition, the effect using tertiary filter can be reached using two-stage filter, the overall knot of device is simplified
Structure, has saved production cost；
(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 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, and resin column GC-MS can
To be more effectively enriched with the organic matter in concentrated water, remove to the impurity in concentrated water, obtain the higher organic matter liquid of concentration.
Brief description of the drawings
Fig. 1 is the structural representation for the device that the present invention extracts fresh water organic matter using two-stage resin.
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 process chart for the device that the present invention extracts fresh water organic matter using two-stage resin.This
The organic matter purifying plant provided is provided, including raw water feed unit, pretreatment unit, reverse osmosis concentration unit, acid-base value are adjusted
Save unit, finished fluid extraction unit, water tank 8 and general control system 4；Wherein raw water feed unit mainly includes self priming pump 1；Pre- place
Managing unit includes the accurate micro-filtration filter 2 of one-level, two grades of accurate micro-filtration filters 3；Reverse osmosis concentration unit includes counter-infiltration list
Member 10, high-pressure pump 9 and dissolved organic carbon on-line monitoring equipment, wherein reverse osmosis units 10 include reverse osmosis membrane and stainless steel membrane
Shell；Acid-base value adjustment unit includes pH sensors, metering dosing pump 5, the first acid solution chemical tank 6 and the second acid solution chemical tank 7；Into
Product liquid extraction unit includes elution device 13, chemicals dosing plant 14, primary adsorption enriching apparatus 15 and secondary absorption enriching apparatus 16；
General control system 4 is mainly using automatically controlling, and collection control operation therein is unified in switch board to be carried out, and can realize whole system
Automatically control operation and manually operated.
Wherein, the entrance of the accurate micro-filtration filter 2 of one-level is connected with the outlet of self priming pump 1, one-level precision micro-filtration filter 2
Outlet be connected with the entrance of two grades of accurate micro-filtration filters 3, the outlet of two grades of precision micro-filtration filters 3 is connected with water tank 8；pH
Sensor is located in water tank 8, and 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
Between the acid solution chemical tank 6 of case 8 and first, the second acid solution chemical tank 7, the entrance and the first acid solution chemical tank 6 of dosing pump 5 are measured
Outlet, the outlet of the second acid solution chemical tank 7 connection, the outlet of metering dosing pump 5 is connected with water tank 8；Reverse osmosis units 10 are provided with
Liquid-inlet, concentrated water outlet and pure water outlet；Liquid-inlet is connected by high-pressure pump 9 with water tank 8, and concentrated water outlet connects with water tank 8
Connect, pure water outlet is connected with elution device 13, elution device 13 export entrance respectively with primary adsorption enriching apparatus 15, two grades
The entrance connection of adsorption and enrichment device 16；The entrance of primary adsorption enriching apparatus 15 is connected with water tank 8, primary adsorption enriching apparatus
15 outlet is connected with the entrance of secondary absorption enriching apparatus 16；The outlet of chemicals dosing plant 14 respectively with primary adsorption enriching apparatus
The entrance connection of 15 entrance, secondary absorption enriching apparatus 16；The upper end of elution device 13 is provided with discharge outlet, excessive pure for discharging
Water；The bottom of primary adsorption enriching apparatus 15 and secondary absorption enriching apparatus 16 is equipped with liquid waste cock.
The use two-stage resin that the present invention is provided extracts the device of fresh water organic matter, and 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, the water quality requirement of raw water for water quality turbidity 1000NTU it
Interior, 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 10 by high-pressure pump 9, and reverse osmosis membrane can be by
Soluble-salt and DOM molecule are trapped in concentrated water in the fresh water such as surface water, underground water and running water；It is to solubilised state
The removal efficiency of sodium ion can reach 98% 96% or so；Pure water through reverse osmosis membrane is directly discharged to elution device 13
Middle storage, is provided with flow speed control valve on reverse osmosis units 10 and the connecting pipe of elution device 13, can adjust pure water outflow counter-infiltration
The speed of film, its speed adjustable range is 0-200L/h；Treat system after hours, the pure water in elution device 13 can be used to anti-
Permeable membrane flush clean；Concentrated water through reverse osmosis membrane separation is back in water tank 8 by pipeline, in reverse osmosis units 10 and water tank
8 connecting pipes are provided with flow speed control valve, can adjust the speed that concentrated water flows out reverse osmosis membrane, and its speed adjustable range is 0-200L/
h；The speed of pure water outflow reverse osmosis membrane and the speed value of concentrated water outflow reverse osmosis membrane are arranged in appropriate scope, make reverse osmosis
The pure water amount of permeable membrane discharge is 1 with the ratio of the concentrated water amount of discharge:9-9:1, and then can avoid because of the speed mistake that pure water flows out
Fast or the excessively slow injury caused to reverse osmosis membrane or device efficiency reduction.Concentrated water, which enters water tank, can circulate concentration, so repeatedly,
Water in raw water box is fewer and fewer, the concentration more and more higher of salt content and the content of organic matter, when the dissolved organic carbon in water tank exists
When the dissolved organic carbon content that line determines device measure reaches preset value, stop concentration, 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 exit is provided with the first conductivity probe 11, between reverse osmosis units 10 and elution device 13
Place is provided with the second conductivity probe 12, by contrasting the numerical value that the first conductivity probe 11 and the second conductivity probe 12 are detected,
May determine that reverse osmosis membrane whether seepage；If the numerical value phase that i.e. the first conductivity probe 11 is detected with the second conductivity probe 12
Deng, it is possible to determine that there is Seepage in reverse osmosis membrane.The exit of reverse osmosis units concentrated water and pure water is additionally provided with security valve, in original
In water concentration process, when the electrical conductivity difference of reverse osmosis units concentrated water and pure water is less than preset value, security valve is opened, now system
It is out of service.
The front end of high-pressure pump 9 is provided with security valve, during concentration, and when water level is less than the 1/5 of water tank, security valve is opened
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 is also
Provided with pressure gauge, 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 quick-fried with pipeline
Split phenomenon.
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 injects non-oxidizable into water tank by the first acid-resistant pipeline
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
To the value pre-set, the program stopped work of metering dosing pump first passage acid liquid, pH sensors lifting platform rises pH sensings
Device is popped one's head in；Metering dosing pump hydrofluoric acid is extracted from the second acid solution chemical tank 7 by second channel, by the second acid-resistant pipeline to
Hydrofluoric acid is injected in water tank 8, 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 15 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 is added, and stand after 24h, open the concentrated water in the outlet valve of water tank 8, water tank
Primary adsorption enriching apparatus 15 and secondary absorption enriching apparatus 16 are flowed through successively, and primary adsorption enriching apparatus 15 and secondary absorption are rich
Filler in acquisition means 16 is adsorbed to the organic matter in concentrated water；After the completion of absorption, primary adsorption device 15 and two grades are closed
Valve between adsorbent equipment 16, opens the valve between elution device 13 and primary adsorption enriching apparatus 15, and open one-level
Pure water in the liquid waste cock of the bottom of adsorption and enrichment device 15, elution device 13 is enriched with by pipe flushing primary adsorption to be filled
15 are put, flushing liquor is discharged by waste cock, complete the flushing of primary adsorption enriching apparatus 15, close primary adsorption enriching apparatus
The waste cock of 15 bottoms, the valve closed between elution device 13 and primary adsorption enriching apparatus 15；
After the flushing for completing primary adsorption enriching apparatus 15, open between chemicals dosing plant 14 and primary adsorption enriching apparatus 15
Valve, and open the liquid waste cock of the bottom of primary adsorption enriching apparatus 15, chemicals dosing plant 14 by resistance to organic pipeline to
Nonpolar volatile organic solvent is injected in primary adsorption enriching apparatus 15, is waved by the natural organic matter of resin adsorption nonpolar
Desorbed in the presence of hair property organic solvent, collect efflux and be labeled as primary adsorption enriching apparatus leacheate；
The valve closed between elution device 13 and primary adsorption enriching apparatus 15；Open elution device 13 and secondary absorption
Valve between enriching apparatus 16, and open in the liquid waste cock of the bottom of secondary absorption enriching apparatus 16, elution device 13
Pure water by pipe flushing secondary absorption enriching apparatus 16, flushing liquor is discharged by waste cock, complete secondary absorption enrichment
The flushing of device 16, closes the waste cock of the bottom of secondary absorption enriching apparatus 16, closes elution device 13 and secondary absorption is rich
Valve between acquisition means 16；
After the flushing for completing secondary absorption enriching apparatus 16, open between chemicals dosing plant 14 and secondary absorption enriching apparatus 16
Valve, and open the liquid waste cock of the bottom of secondary absorption enriching apparatus 16, chemicals dosing plant 14 by resistance to organic pipeline to
Nonpolar volatile organic solvent is injected in secondary absorption enriching apparatus 16, is waved by the natural organic matter of resin adsorption nonpolar
Desorbed in the presence of hair property organic solvent, collect efflux and be labeled as secondary absorption enriching apparatus leacheate；
Merge after primary adsorption enriching apparatus leacheate and secondary absorption enriching apparatus leacheate, rotary evaporation, nitrogen blow or
Naturally volatilization obtains fresh water organic matter solid powder.
Primary adsorption enriching apparatus 15 includes adsorption column and filler, and wherein filler is used located at the interior of adsorption column
Filler in the one or more of XAD-8 resins, DAX-8 resins and XAD-7 resins, secondary absorption enriching apparatus 16 is XAD-4
Resin, can adsorb the organic compositions such as humic acid, fulvic acid, obtain the higher organic matter liquid of concentration.
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 13 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
13 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.
A series of detailed description described above is illustrated only for the feasibility embodiment of the present invention,
They are not to limit the scope of the invention, the knowledge possessed in the technical field those of ordinary skill
Interior, the various change made on the premise of present inventive concept is not departed from belongs to protection scope of the present invention.
Claims (1)
1. the device of fresh water organic matter is extracted using two-stage resin, 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；Characterized in that,
The finished fluid extraction unit includes primary adsorption enriching apparatus, secondary absorption enriching apparatus, elution device and dosing dress
Put, outlet, the outlet of elution device, the outlet of chemicals dosing plant of the entrance of the primary adsorption enriching apparatus respectively with water tank connect
Connect；The outlet of the entrance and elution device of the secondary absorption enriching apparatus, the outlet of chemicals dosing plant, primary adsorption enriching apparatus
Outlet connection；
The entrance of the outlet connection pretreatment unit of raw water feed unit, the entrance of the outlet connection water tank of pretreatment unit；Together
When, the concentrated water outlet of reverse osmosis units, the outlet of acid-base value adjustment unit connect the entrance of water tank respectively；Reverse osmosis units it is pure
Water out is connected with the entrance of the elution device of finished fluid extraction unit, the outlet of water tank respectively with the entrances of reverse osmosis units with
And the entrance connection of the primary adsorption enriching apparatus of finished fluid extraction unit；General control system controls the action of each unit；
The bottom of the primary adsorption enriching apparatus and secondary absorption enriching apparatus is equipped with waste cock；
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 secondary absorption enriching apparatus include adsorption column and
Filler, the filler is in the adsorption column, and the filler is XAD-4 resins；
The water tank uses acid resisting material, and it is provided with closure above, and lower end is funnel shaped, and it is interior provided with agitator, liquid level
Sensor and pH sensors；The end face of the closure is provided with least five through hole；The water tank is enriched with the primary adsorption and filled
Pipeline between putting gos deep into water tank, is sealing structure at the top of pipeline, duct wall is provided with the hole that multiple apertures are 50 μm, and hole is most
Low clearance 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 filter mantle
Aperture is 100 μm.
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| CN109911973A (en) * | 2019-03-04 | 2019-06-21 | 博天环境集团股份有限公司 | The processing system and method for concentrated water after a kind of UF membrane |
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| CN202036818U (en) * | 2010-12-31 | 2011-11-16 | 北京工业大学 | Gathering and separating system for dissolved organic matter in water |
| 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 |
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Inventor after: Bai Yingchen Inventor after: Wu Fengchang Inventor after: Liao Haiqing Inventor after: Chen Qu Inventor after: Feng Weiying Inventor after: Zhang Chen Inventor after: Chang Ming Inventor before: Bai Yingchen Inventor before: Wu Fengchang Inventor before: Liao Haiqing Inventor before: Chen Qu Inventor before: Feng Weiying Inventor before: Zhang Chen Inventor before: Chang Ming |
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Granted publication date: 20170912 Termination date: 20201021 |