CN107352625A - Water-fertilizer integral forward osmosis membrane water treatment system and its application - Google Patents
Water-fertilizer integral forward osmosis membrane water treatment system and its application Download PDFInfo
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- CN107352625A CN107352625A CN201710775697.3A CN201710775697A CN107352625A CN 107352625 A CN107352625 A CN 107352625A CN 201710775697 A CN201710775697 A CN 201710775697A CN 107352625 A CN107352625 A CN 107352625A
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- osmosis membrane
- forward osmosis
- water
- material liquid
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- 239000012528 membrane Substances 0.000 title claims abstract description 68
- 238000009292 forward osmosis Methods 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000003337 fertilizer Substances 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 199
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002994 raw material Substances 0.000 claims abstract description 38
- 238000001764 infiltration Methods 0.000 claims abstract description 32
- 230000008595 infiltration Effects 0.000 claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 22
- 230000002262 irrigation Effects 0.000 claims abstract description 17
- 238000003973 irrigation Methods 0.000 claims abstract description 17
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 230000006698 induction Effects 0.000 claims description 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 238000001471 micro-filtration Methods 0.000 claims description 8
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 5
- 229920002284 Cellulose triacetate Polymers 0.000 claims description 4
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical group O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 claims description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 3
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 3
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 239000004323 potassium nitrate Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 239000013535 sea water Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 10
- 229910001385 heavy metal Inorganic materials 0.000 description 8
- 239000003513 alkali Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000002420 orchard Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
- C02F1/445—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by forward osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/002—Forward osmosis or direct osmosis
- B01D61/005—Osmotic agents; Draw solutions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- 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
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to water-treatment technology field, a kind of water-fertilizer integral forward osmosis membrane water treatment system is disclosed, including raw material liquid trough and draw liquid bath, raw material liquid trough and draw and be provided with forward osmosis membrane chamber between liquid bath, forward osmosis membrane chamber includes forward osmosis membrane and the material liquid side being separated by forward osmosis membrane and draws liquid side, the delivery port of raw material liquid trough is connected with the material liquid side entrance of forward osmosis membrane chamber, and the raw material liquid recycle stream that material liquid side outlet is connected with raw material liquid trough after making positive infiltration processing enters raw material liquid trough；Draw the delivery port of liquid bath to be connected with the liquid side entrance of drawing of forward osmosis membrane chamber, draw liquid side outlet and draw the liquid recycle stream that draws that liquid bath is connected after making positive infiltration processing to enter to draw liquid bath；The connecting line for drawing liquid bath and drawing between liquid side entrance is provided with for discharging the valve one for drawing liquid after positive infiltration is handled, and it is fertilizer solution to draw liquid.Positive infiltration water process is combined with agricultural irrigation, the fertilizer solution after infiltration processing, which draws liquid, to be directly discharged in agricultural irrigation device.
Description
Technical field
The present invention relates to water-treatment technology field, in particular it relates to a kind of water-fertilizer integral forward osmosis membrane water treatment system
And its application.
Background technology
The method for treating water being widely used at present mainly has Re Fa and the major class of embrane method two, wherein counter-infiltration（RO）At embrane method water
It is more early to manage technical research, developed at present it is more ripe, but due to its needs compared with high impressed pressure, floor space is big, film easily pollutes
The shortcomings of limit further development.
And compared with counter-infiltration, positive infiltration（FDFO）Technology is used as motive force using film both sides solution permeable pressure head, it is not necessary to
Impressed pressure, operation is simple, has the advantages that low energy consumption, low stain and process are easily achieved, proposed in recent years
Novel membrane water technology.
As shown in figure 1, in order to ensure the sustainable progress of positive process of osmosis, it is necessary to carry out concentration recycling to drawing liquid,
This process needs to expend big energy, if first traditional positive infiltration processing needs endlessly to add without recovery
Permeable pressure head could be kept by entering to draw liquid, cause to draw liquid resource largely wasting, and second need an external counter-infiltration system dense
The recycling that liquid draw liquid is drawn in contracting, thus increases cost of investment（Counter-infiltration system power consumption is big）.
The content of the invention
The technical problem to be solved in the present invention is to be directed to above-mentioned technological deficiency, there is provided one kind is simple in construction, draws liquid not
Need recovery, the water-fertilizer integral forward osmosis membrane water treatment system of the progress of work can be automatically controlled.
The above-mentioned purpose of the present invention is achieved by the following technical programs：
A kind of water-fertilizer integral forward osmosis membrane water treatment system, including raw material liquid trough and draw liquid bath, raw material liquid trough and draws liquid
Forward osmosis membrane chamber is provided between groove, forward osmosis membrane chamber includes forward osmosis membrane and the material liquid side being separated by forward osmosis membrane and drawn
Take liquid side, the delivery port of the raw material liquid trough is connected with the material liquid side entrance of forward osmosis membrane chamber, the material liquid side outlet with
The raw material liquid recycle stream that raw material liquid trough is connected after making positive infiltration processing enters raw material liquid trough；The delivery port for drawing liquid bath is with just oozing
Permeable membrane chamber draws the connection of liquid side entrance, it is described draw liquid side outlet and draw liquid bath connect make positive infiltration handle after draw liquid
Liquid bath is drawn in circulation inflow；The connecting line for drawing liquid bath and drawing between liquid side entrance, which is provided with, to be used to discharge positive infiltration
The valve one for drawing liquid after processing, the liquid that draws is fertilizer solution.
Positive infiltration water technology is that as material liquid, choosing one kind has of a relatively high infiltration to need liquid to be processed
The solution of pressure is as liquid is drawn, and in the case where being driven to positive permeable pressure head, hydrone enters through forward osmosis membrane draws liquid side, concentration
Material liquid is exhausted from system.The liquid that draws after dilution is reclaimed in a specific way in recovery system, while obtains fresh water, is returned
The liquid that draws received utilizes into the circulatory system.
Further, the fertilizer solution is any one in sodium chloride, potassium nitrate, urea, ammonium nitrate, potassium dihydrogen phosphate
Kind.
Further, agricultural irrigation device is connected with the valve one, it is followed in order with drawing to be formed between liquid bath
Ring.
Yet further, draw liquid bath and be provided with liquid level induction system one, it is connected with the signal of valve one, and valve one can be
It is opened and closed under the signal control of liquid level induction system one.
Further, material liquid water inlet pipe is connected in the raw material liquid trough, is provided with and was used at the material liquid water inlet pipe
Filter the micro-filtration of material liquid.
Further, the micro-filtration is the screen cloth that mesh number is 50~200 mesh.
Yet further, the connecting line between the raw material liquid trough and material liquid side entrance is provided with to be used to discharge and just oozed
The valve two of material liquid after processing thoroughly.
Also further, raw material liquid trough is provided with liquid level induction system two, and it is connected with valve binary signal, and valve two can be
It is opened and closed under the signal control of liquid level induction system two.
Further, the forward osmosis membrane is cellulose triacetate forward osmosis membrane（CTAFO films）.
The present invention also provides the water-fertilizer integral forward osmosis membrane water treatment system at sewage, waste water, saline-alkali water simultaneously
Application in terms of reason and water-fertilizer integral irrigation.
Compared with prior art, the present invention has the advantages that：
1）Water-fertilizer integral forward osmosis membrane water treatment system can be widely applied in the processing of the water such as sewage, waste water, saline-alkali water, especially
It has significant clean-up effect for heavy metal-containing polluted water, can be effectively improved that current domestic heavy industry sewage pollution is serious to be showed
Shape；
2）Positive infiltration water process is combined with agricultural irrigation, using fertilizer solution as liquid is drawn, it can be always maintained at permeating
Pressure difference, drawing liquid and can be directly discharged in agricultural irrigation device after infiltration processing, need not move through follow-up lengthy and jumbled processing or to drawing
Liquid is taken to be recycled, it is simple and convenient；
3）The heavy metal ion drawn in liquid heavy metal contaminant water of fertilizer solution has superelevation interception rate, reachable 80%~
90%；
4）Using cellulose triacetate forward osmosis membrane as permeable membrane, it selects permeability strong, and performance is better than other current forward osmosis membranes, can
To remove bacterium, virus, the harmful substance such as heavy metal and suspended particulate, with reference to the application of fertilizer solution, water can be increased substantially
Divide the utilization rate with fertilizer；
5）The setting of fluid level control device one/bis- and its signal connected mode between valve one/bis-, make the water process system
System forms the Intelligent treatment closed loop of a self feed back, is participated in without artificial；
6）The setting of micro-filtration can effectively improve the operational efficiency and physical life of forward osmosis membrane.
Brief description of the drawings
Fig. 1 is the structural representation of positive osmosis process in the prior art；
Fig. 2 is the structural representation of water-fertilizer integral forward osmosis membrane water treatment system of the present invention；
Fig. 3 is the operation principle schematic diagram of the water-fertilizer integral forward osmosis membrane water treatment system.
Embodiment
Accompanying drawing of the embodiment of the present invention being given for example only property explanation, it is impossible to be interpreted as limitation of the present invention.In order to more all right
Bright the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；For this area
For technical staff, some known features and its explanation may be omitted and will be understood by accompanying drawing.It is below in conjunction with the accompanying drawings and real
Example is applied to be described further technical scheme.
Embodiment
As shown in figures 2-3, a kind of water-fertilizer integral forward osmosis membrane water treatment system, including raw material liquid trough 1 and draw liquid bath
2, raw material liquid trough 1 and draw forward osmosis membrane chamber 3 is provided between liquid bath 2, forward osmosis membrane chamber 3 includes forward osmosis membrane 31 and by just permeating
The material liquid side 32 and draw liquid side 33 that film is separated.
Water treatment system described in the present embodiment mainly applies to the processing of heavy metal-containing polluted water, and it mainly make use of material liquid
And caused permeable pressure head between liquid is drawn, mass exchange is produced by osmotic pressure, i.e., the hydrone in material liquid side is through just
Permeable membrane, which enters, draws liquid side.
Wherein the delivery port of raw material liquid trough 1 is connected with the entrance of material liquid side 32 of forward osmosis membrane chamber 3, and material liquid side 32 exports
The raw material liquid recycle stream connected with raw material liquid trough 1 after making positive infiltration processing enters raw material liquid trough 1；Draw the delivery port of liquid bath 2 with just
Infiltration membrane cavity 3 draws the entrance connection of liquid side 33, draws the outlet of liquid side 33 with drawing liquid bath 2 and connects drawing after making positive infiltration processing
Liquid recycle stream is taken to enter to draw liquid bath.
To optimize water treatment system of the present invention, the liquid that draws after positive infiltration processing is set to be not required to by recycling step, this
The liquid that draws that invention is selected is fertilizer solution, and is set drawing liquid bath 2 and drawing on the connecting line between the entrance of liquid side 33
For discharging the V-8 of valve one for drawing liquid after positive infiltration is handled.
Be disposed between raw material liquid trough 1 and the entrance of material liquid side 32 valve V-1, magnetic force circulating pump P-1, valve V-4,
Flowmeter FG-1 and pressure gauge PG-1, from being also sequentially provided with pressure gauge PG-2 and valve between material liquid side outlet and raw material liquid trough
V-5；Draw liquid bath and draw and be disposed with valve V-7, magnetic force circulating pump P-2, valve V-6, flowmeter between liquid side entrance
FG-2 and pressure gauge PG-3, pressure gauge PG-4 is provided with from drawing between liquid side 33 exports and drawn liquid bath 2.
Specifically, fertilizer solution can be any one in sodium chloride, potassium nitrate, urea, ammonium nitrate, potassium dihydrogen phosphate,
Can effectively absorb the active ingredients such as N, P, K in material liquid, at the same can also be directed in material liquid five kinds of Heavy Metals such as Cd,
Cr, Pb, Hg, As and Organic Pollution are handled, and the interception rate of its heavy metal is 80%~90%.
Fertilizer solution by positive infiltration processing is released from the V-8 of valve one, to make it obtain point-to-point application, in subtracting
Between the link such as excessive artificial participation, the connection agricultural irrigation device 4 preferably the V-8 of valve one at.
The material liquid of the present embodiment is taken from industry/sanitary sewage, industrial wastewater, saline-alkali water or seawater etc..
Agricultural irrigation device 4 can be applicable to arable land irrigation, orchard irrigation etc., specifically, from the V-8 of valve one releases
Aqueous solution indices are significantly better than the standard of national irrigation water.
To lift the automation function of this water treatment system, draw liquid bath 2 and be provided with liquid level induction system 1, itself and valve
Door one V-8 signals connection, when drawing liquid volume in liquid bath 33 and reaching the sensing critical value of liquid level induction system 1, valve
One V-8 is opened, and is drawn liquid and is entered agricultural irrigation device 4.
Simultaneously to realize automatically feeding for material liquid, material liquid water inlet pipe 5, material liquid water inlet are further connected with raw material liquid trough 1
The micro-filtration 51 for filter stock liquid is provided with pipe 5.
Because can contain physics macromolecular in water, material liquid enters back into positive infiltration processing after the filtering of micro-filtration 51,
One will not cause the physics macromolecular in water（Film can not be passed through）It is blocked in positive infiltration processing core link（That is forward osmosis membrane
Chamber）, then the forward osmosis membrane chamber be not required to often clean, save man-hour；Physics macromolecular will not be adsorbed in forward osmosis membrane in two waters
On, avoid blocking forward osmosis membrane passage（Extend the service life of forward osmosis membrane）, allow the water to smoothly penetrate into and draw liquid side, carry
High workload efficiency.
Specifically, micro-filtration 5 is the screen cloth that mesh number is 50~200 mesh, and it can be effectively by the physics macromolecular mistake in water
Filter.
Connecting line between raw material liquid trough 1 and the entrance of material liquid side 32, which is provided with, to be used to discharge the original after positive infiltration processing
The V-2 of valve two of feed liquid.
Raw material liquid trough 1 is provided with liquid level induction system 2 11, and liquid level induction system 2 11 is connected with the V-2 signals of valve two,
When the material liquid volume in raw material liquid trough 1 is reduced to the influence value of liquid level induction system 2 11, the V-2 of valve two is automatically turned on,
Material liquid is discharged.
The forward osmosis membrane 31 of the present embodiment is high-throughout cellulose triacetate forward osmosis membrane（CTAFO films）, its membrane material
Hydrophilic, hymeniderm layer and porous support layer contact angle are respectively 60 ° and 63.6 °, and in electroneutral, integral thickness is about 50um, greatly
The concentration difference polarization of film is reduced, positive process of osmosis is especially suitable for, there is good resistance tocrocking, Water Sproading rate, flux can be with
Reach 43.2L/（㎡*h）, performance is better than other current forward osmosis membranes, can effectively remove bacterium, viral, heavy metal and suspension
The harmful substances such as particle.
The water treatment system running of the present embodiment is：The water that need to be handled enters raw material liquid trough from material liquid water inlet pipe 5
1, then valve V-1 and valve V-4 and valve V-5 open, material liquid is under magnetic force circulating pump P-1 dynamic action from material liquid
Groove 1 flows through the material liquid side 32 that magnetic force circulating pump P-1 enters forward osmosis membrane chamber, during which detects flow velocity, pressure by flowmeter FG-1
Power table PG-1 and PG-2 are respectively intended to the pressure differential of detection inlet and outlet, and flow velocity etc. can be adjusted according to pressure differential；Draw
The valve V-6 and valve V-7 of liquid side are opened, and are drawn liquid and are entered under magnetic force circulating pump P-2 dynamic action and draw liquid side 33, phase
Between flow velocity detected by flowmeter FG-2, pressure gauge PG-3 and PG-4 are respectively intended to the pressure differential of detection inlet and outlet, and can basis
Pressure differential is adjusted to flow velocity etc.；Into forward osmosis membrane chamber 3 material liquid and draw liquid in the presence of forward osmosis membrane 31 and produce
Biological mass transter, the hydrone of material liquid side 32, which largely enters, to be drawn liquid side 33 and is diluted to drawing liquid, with forward osmosis membrane
The lasting progress of processing, the liquid volume in raw material liquid trough 1 are being reduced always, until its reduction is to liquid level induction system 2 11
During influence value, the V-2 of valve two, which is opened, discharges the material liquid after concentration, and the circulation is then continued after terminating by material liquid water inlet pipe 5
Water inlet, repeat above material liquid side operating procedure；And the substantial increase of the liquid volume in liquid bath 2 is now drawn, when volume reaches
During the influence value of liquid level induction system 1, the V-8 of valve one openings will draw liquid and discharge to agricultural irrigation device 4.
Specifically, material liquid and the inlet and outlet of liquid is drawn by the water treatment system from main feedback control, without people
Work participates in, and forms intelligent circulation.
The water treatment system of the present embodiment is applied has obtained excellent checking on orchard irrigation, drawing after positive infiltration processing
Take liquid to reduce the secondary saline soil that crop field flood irrigation and border irrigation occur, using water wisely 40%~50%, save fertilizer 50%~60%, carry
High yield 14.6%~17.1%, shorten the material liquids such as fructescence, while industrial wastewater and also dealt carefully with.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of water-fertilizer integral forward osmosis membrane water treatment system, it is characterised in that including raw material liquid trough and draw liquid bath, raw material
Liquid bath and draw forward osmosis membrane chamber is provided between liquid bath, forward osmosis membrane chamber includes forward osmosis membrane and is separated by forward osmosis membrane
Material liquid side and liquid side is drawn, the delivery port of the raw material liquid trough is connected with the material liquid side entrance of forward osmosis membrane chamber, the original
The raw material liquid recycle stream that feed liquid side outlet is connected with raw material liquid trough after making positive infiltration processing enters raw material liquid trough；The liquid bath of drawing
Delivery port is connected with the liquid side entrance of drawing of forward osmosis membrane chamber, and the liquid side outlet that draws makes at positive infiltration with drawing liquid bath and connecting
The liquid recycle stream that draws after reason enters to draw liquid bath；The connecting line for drawing liquid bath and drawing between liquid side entrance, which is provided with, to be used
The valve one for drawing liquid after positive infiltration processing is discharged, the liquid that draws is fertilizer solution.
2. water-fertilizer integral forward osmosis membrane water treatment system according to claim 1, it is characterised in that the fertilizer solution is
Any one in sodium chloride, potassium nitrate, urea, ammonium nitrate, potassium dihydrogen phosphate.
3. water-fertilizer integral forward osmosis membrane water treatment system according to claim 2, it is characterised in that connect at the valve one
It is connected to agricultural irrigation device.
4. water-fertilizer integral forward osmosis membrane water treatment system according to claim 3, it is characterised in that draw liquid bath and be provided with
Liquid level induction system one, liquid level induction system one are connected with the signal of valve one.
5. water-fertilizer integral forward osmosis membrane water treatment system according to claim 1, it is characterised in that in the raw material liquid trough
Material liquid water inlet pipe is connected to, the micro-filtration for filter stock liquid is provided with the material liquid water inlet pipe.
6. water-fertilizer integral forward osmosis membrane water treatment system according to claim 5, it is characterised in that the micro-filtration is
Mesh number is the screen cloth of 50~200 mesh.
7. water-fertilizer integral forward osmosis membrane water treatment system according to claim 1, it is characterised in that the raw material liquid trough with
Connecting line between material liquid side entrance is provided with the valve two for being used for discharging the material liquid after positive infiltration is handled.
8. water-fertilizer integral forward osmosis membrane water treatment system according to claim 7, it is characterised in that raw material liquid trough is provided with
Liquid level induction system two, liquid level induction system are connected with valve binary signal.
9. water-fertilizer integral forward osmosis membrane water treatment system according to claim 1, it is characterised in that the forward osmosis membrane is
Cellulose triacetate forward osmosis membrane.
10. water-fertilizer integral forward osmosis membrane water treatment system is in sewage, waste water, saline and alkaline as described in claim 1~9 any one
Application in terms of water, Seawater Treatment and water-fertilizer integral irrigation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775697.3A CN107352625A (en) | 2017-08-31 | 2017-08-31 | Water-fertilizer integral forward osmosis membrane water treatment system and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775697.3A CN107352625A (en) | 2017-08-31 | 2017-08-31 | Water-fertilizer integral forward osmosis membrane water treatment system and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107352625A true CN107352625A (en) | 2017-11-17 |
Family
ID=60290690
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417801A (en) * | 2016-01-18 | 2016-03-23 | 青岛理工大学 | Method and system for extracting fresh water from sewage with synergy of forward osmosis and electrodialysis |
| CN105638065A (en) * | 2016-01-15 | 2016-06-08 | 临沂大学 | Irrigated fertilization equipment and irrigated fertilization method |
| CN106830192A (en) * | 2017-01-24 | 2017-06-13 | 上海大学 | Forward osmosis membrane water treatment facilities |
| CN207361843U (en) * | 2017-08-31 | 2018-05-15 | 株洲志恒实业有限公司 | Water-fertilizer integral forward osmosis membrane water treatment system |
-
2017
- 2017-08-31 CN CN201710775697.3A patent/CN107352625A/en active Pending
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Application publication date: 20171117 |