CN108083518A - The portable electrolemma method for desalting brackish water and device of a kind of Driven by Solar Energy - Google Patents

The portable electrolemma method for desalting brackish water and device of a kind of Driven by Solar Energy Download PDF

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Publication number
CN108083518A
CN108083518A CN201711424350.0A CN201711424350A CN108083518A CN 108083518 A CN108083518 A CN 108083518A CN 201711424350 A CN201711424350 A CN 201711424350A CN 108083518 A CN108083518 A CN 108083518A
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water
electrolemma
desalination
solar energy
driven
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王建友
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Tianjin Water System Technology Co Ltd
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Tianjin Water System Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/009Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/005Processes using a programmable logic controller [PLC]

Abstract

The invention discloses the portable electrolemma method for desalting brackish water and device of Driven by Solar Energy, bitter is successively purified using the integrated form technological process of " the secondary filter microfiltration membranes activated carbon ultrafiltration electrodeionization of falling pole ", desalination, self priming pump wherein used, the deionized membrane stack of falling pole is using the Constant Direct Current electric drive of photo-electric solar cell output, the deionized membrane stack of falling pole does not set disengaging water ga(u)ge and flow control valve, desalination water and Concentrate flow are distributed automatically by water inlet manifold, whole diluting compartments, Ion Exchange Resin In The Mixing Bed is filled in enriched chamber and electrode chamber.The electrolemma brackish water desalination device of Driven by Solar Energy provided by the invention, without manual adjustment water, without additional configuring direct current power supply, it can be achieved that outdoor, field is round-the-clock exempts from electricity operation, especially suitable for the water dispersion type pattern in the area such as open air, field, island, desert, when directly using contaminant water, bitter as raw water efficiently, produce safe and Wholesome Drinking Water on the spot.

Description

The portable electrolemma method for desalting brackish water and device of a kind of Driven by Solar Energy
Technical field
The present invention relates to brackish water desalination process field, a kind of portable electrolemma bitter of Driven by Solar Energy is particularly related to Desalination method and device.
Background technology
Rural area for domestic northwest, North China and numerous coastal regions in east China and do not possess municipal central water supply The centralized residential district of pipe network, drinking water safety problem are faced with increasingly acid test.Surface water, underground water are considerable Area almost becomes uniquely available water source, but bitter, contaminant water and high-fluorine water cause most water sources not make directly With, it is necessary to using effective water purifying process.These areas are also not suitable for while can not also use to concentrate on water supply pattern Way of supplying water can only use scattered, self-propelled water supply pattern.In addition, also many occasions, as outdoor machine acts industry, just Need small-sized, portable purified water treatment device, can easily solve purification of water quality, desalination, except microorganism the problems such as, Prepare qualified drinking water.
For desalination, more practical technology includes reverse osmosis (RO), nanofiltration (NF), electrodialysis (ED) and electricity go from Sub (EDI).For the direction using reverse osmosis progress brackish water desalination there are many invention, as Chinese patent 103936202A is public A kind of method for desalting brackish water and device are opened, using " self-cleaning laminated filter-filtration-reverse osmosis-underground water mixing dress Put-calcite filtering bed-ozone generating-device-activated-carbon device " integrating process, reverse osmosis concentrated water, which enters nanofiltration device, to carry out Softening, the production water after softening are back to feed water by reverse osmosis, reduce the concentration of divalent incrustation ion in feed water by reverse osmosis, outer row's nanofiltration Strong brine enters energy recycle device, ensures that nanofiltration water inlet is not required to booster pump and softening separation can be completed.The process has Need not add chemical agent, producing water water quality is stablized, reverse osmosis produced water Hui Shou Shuai≤80%, inorganic ions rejection >=99.5%, The advantages that treatment effeciency is high, but technological process is more complicated, and reverse osmosis operating pressure reaches more than 4Mpa, it is necessary to high pressure pumping unit And to membrane module and pipeline be pressure-resistant, requirement for anticorrosion is higher, cost of investment is high.Patent CN104828906A and CN102863095A etc. Also bitter is desalinated using reverse osmosis technology, required operating pressure is in more than 3Mpa, this is to small-sized, miniature RO/NF film groups For part and device, it can not realize.ED and EDI then belongs to electric drive membrane process, belongs to atmospheric operation, the infiltration with solution It presses unrelated, it is only necessary to have pump energy driven current, there is DC power supply can be realized.Chinese patent CN202499741U and ZL94230263.X desalinates bitter using electrodialytic technique, and device structure is simple, at low cost, stable effluent quality, repair It is easy to operate.But flowmeter, valve and voltage regulating device are more needed for conventional electrodialysis, to the skill of Operation and Maintenance personnel Art attainment there are certain requirements, it is necessary to targetedly be simplified design.
At present, most ripe desalination water technologies rely on electrical energy drive, and minimize outdoors, motor driven water supply mould The use of electric energy is uneconomical and inapplicable in formula.Much regional in China, such as northwest arid area, solar energy resources is very rich Richness if solar energy can be efficiently used to handle bitter, can need not rely on electric energy and solve domestic water, so as to be field machine Action industry, which supplies water, provides new reliable solution pattern.Chinese patent CN102491441A and CN102897863A are individually disclosed too Positive energy method for desalting brackish water and device, distill bitter using solar energy heat collector and superconductive medium, can compare Relatively efficiently desalinated using solar energy, reduce electric energy energy consumption, desalination is efficient, the advantages that producing water water quality is good.The two Solar energy in patented technology plays photothermy, substantially belongs to hot method desalination, but booster pump used and PLC control system are equal Electric energy is needed, is not suitable for exempting from the purifying field water quality desalination under the conditions of electricity completely.Therefore, a kind of the portable of Driven by Solar Energy is designed Formula electrolemma method for desalting brackish water has important economic value and realistic meaning with device.
The content of the invention
First technical problem to be solved by this invention, the portable electrolemma for being to provide a kind of solar energy electric drive are bitter Desalination method, for the inconvenience of the regulating devices such as existing electrolemma process multithread gauge, valve and power supply, to conventional electrodialysis Technique carries out simplifying design, and is further combined it with solar cell, with adapt to it is easy to operate, be convenient for carrying will It asks, the deficiency of central water supply mode can be made up, realize the round-the-clock purification of water quality desalination exempted under the conditions of electricity, supplied for outdoor study Water provides safeguard.
The technical solution that specifically provides of the present invention is, a kind of portable electrolemma method for desalting brackish water of Driven by Solar Energy with Device, with the bitter desalting membrane process that the electrodeionization of falling pole (EDIR) is core, joint carbon filtration, micro-filtration and ultrafiltration etc. are more Grade pretreatment unit, forms brackish water desalination integrated technique.Mainly include electric power system, pretreatment system and EDIR desalination systems Three parts.Bitter after pretreatment system and desalination system processing, obtains the drinking water of safe and high quality successively.
A kind of portable electrolemma method for desalting brackish water of Driven by Solar Energy, raw water successively pass through " secondary filter-micro- The technological process of filter-activated carbon adsorption-ultrafiltration-electrodeionization of falling pole " is purified, desalination, and self priming pump used and extremely electric Deionization membrane stack is using the direct current of photo-electric solar energy output as driving force, while the condensed water and electrode for the electrodeionization of falling pole Water mutually merges inside membrane stack, and the pattern distributed automatically with total Water with desalination current carries out flow-rate adjustment automatically.
It specifically includes with lower part:
(1) electric power system:
Solar panels including carrying out opto-electronic conversion, include one group of body solar panels and a certain number of extension solar energy Plate, the electric energy for being collected solar panels by opto-electronic conversion effect store in solar cells.Solar cell constant output Voltage is 24V, and the water pump and EDIR membrane stacks for device use.Water pump and EDIR membrane stacks are designed as fixed 24V DC powereds, So as to which pump power and membrane stack DC power supply need not be reconfigured.
(2) pretreatment system:
Including water inlet pipe, booster pump, secondary filter component, micro-filtration membrane module, activated carbon adsorption filter core and ultrafiltration membrane group Part, ultrafiltration apparatus water outlet is through after the detection of line electrical conductivity, desalt processing is carried out into EDIR membrane stacks device;
(3) EDIR desalination systems:
Pretreated raw water is divided into each concentration of two bursts of water inlets into EDIR devices with the automatic allocation model of total water current Room and diluting compartment, electrode water and concentration current are combined into one, and water outlet is directly discharged;Desalinate water outlet successively through online electrical conductivity and After the detection of line acidometer is qualified, into water producing tank.
Wherein, the portable electrolemma method for desalting brackish water of above-mentioned a kind of Driven by Solar Energy, in pretreatment system, the essence Secondary filter component easily replaces consumptive material using PP cotton melt-blown filters etc. in close filtering technique flow, removes big suspended solid, glue Body, most of turbidity, particulate matter, 5~10 μm of filtering accuracy;Micro-filtration membrane module in the micro-filtration technological process, using filtering essence The miillpore filter for 0.2~1.0 μm is spent, further reduces turbidity, removes most of microorganism, tiny particles content;The activity The activated carbon adsorption filter core used in charcoal absorbing process flow goes the colourity in raw water and stink using granular activated carbon It removes, reduces raw water turbidity, compressive resistance 0.5MPa;Ultrafiltration membrane in the ultrafiltration technology flow, using anti-pollution, good hydrophilic property The hollow fiber ultrafiltration membrane of the materials such as polysulfones, polyether sulfone, polypropylene, Kynoar or collapsible membrane filter thoroughly go to remove water In microorganism, colloid and larger molecular organics, filtering accuracy is less than 0.01 μm.By pretreated water, haze reduction arrives Below 3NTU, without other macromolecular organic pollutions, microorganism, it is seen that the impurity such as particulate matter.
The booster pump has self-suction function, and metered flow matches with flow of inlet water needed for downstream unit, using 24V DC powered.
Wherein, the portable electrolemma method for desalting brackish water of above-mentioned a kind of Driven by Solar Energy, the electrodeionization of the falling pole work In skill flow, EDIR (electrodeionization of falling pole) membrane stack includes the anions and canons exchange membrane being alternately arranged leads with corresponding current To partition plate, the desalting room and enriched chamber being alternately arranged are formed.It, can be with filled with Ion Exchange Resin In The Mixing Bed in diluting compartment The intermembranous electric conductivity of ion exchange is significantly improved, is greatly facilitated the ion in water by solution mutually to the migration of film surface.Further, Also with same strategy filled with Ion Exchange Resin In The Mixing Bed in enriched chamber, the length and width of enriched chamber, thickness with desalination Room it is identical.By corresponding electrode switching operation, the positive and negative electrode of EDIR is aperiodically made mutually to convert, every time after conversion, Original diluting compartment becomes new enriched chamber, and original enriched chamber then becomes new diluting compartment, and two kinds every indoor weak acid and weak base Property environment mutually changes therewith, so as to prevent fouling from generating well.Within the short period after switching electrode every time, one As for 0.5-1 minute, new desalination water water quality may be not yet qualified, then the production water during this directly discharges, up to effluent quality It is qualified.
According to design principle is simplified, the DC powered power for the deionized membrane stack of falling pole is adopted from photo-electric solar panels It is run with constant voltage, applied voltage 24V, 36V, 48V thrin, is preferably 24V.For different raw water qualities, pass through Flexibly change the partition plate quantity in membrane stack and ensure desalting effect so that production water TDS is no more than 1000mg/L, reaches drinking water It is required that.
Further, there was only two strands of current of desalination water and condensed water outside the EDIR membrane stacks, the condensed water inside membrane stack Stream and electrode current are combined into one, and the flow of each stock current distributes automatically, thus the water use efficiency of whole device is close to 50%, nothing The control measures such as other flowmeters, valve must be set, also eliminate the potential wind that layman's maloperation causes device to be damaged Danger.
Yet further, in order to fully reduce the resistance of EDIR membrane stacks, desalting effect is improved, in the electrode chamber of both sides also Equally filled with Ion Exchange Resin In The Mixing Bed, the resistance of respective electrode room can be reduced by more than 90% by this, and can reduce Cl-、 OH-The electrode reaction of ion reduces Cl2、O2Etc. electrode reactions product generation, beneficial to the operation steady in a long-term of device.
In a kind of portable electrolemma method for desalting brackish water of above-mentioned Driven by Solar Energy, the electrodeionization of the falling pole technique stream Cheng Zhong:Strong acid and strong base Ion Exchange Resin In The Mixing Bed is filled in whole diluting compartments, enriched chamber and electrode chamber, the strong acid is strong The ratio of yin, yang resin is 4 in alkaline Ion Exchange Resin In The Mixing Bed:6~6:4, resin particle size range is 0.45~0.9mm.
Wherein, the electrode of the EDIR membrane stacks device switches the cycle as 2~6h.
Second technical problem to be solved by this invention, the portable electrolemma for being to provide a kind of above-mentioned Driven by Solar Energy are bitter Device used by desalination method.The device is for adjustings such as existing electric drive membrane process multithread gauge, valve and power supplys It to the design that conventional electrodialysis device is simplified, and is further combined by the inconvenience of device with solar cell, with Adapt to requirement easy to operate, to be convenient for carrying, can make up the deficiency of central water supply mode, realize it is round-the-clock exempt from electricity under the conditions of Purification of water quality desalination acts industry water supply for outdoor machine and provides safeguard.
The device includes raw water box, self priming pump, solenoid valve, secondary filter component, micro-filtration membrane module, activated carbon adsorption group Part, hyperfiltration membrane assembly, online conductivity meter, the deionized membrane stack of falling pole device, online acidometer, solar cell, PLC controls Device, photo-electric solar panels, water producing tank;Secondary filter component, micro-filtration membrane module and activated carbon adsorption component are sequentially connected;It is described The water outlet of activated carbon adsorption component and the water inlet of hyperfiltration membrane assembly connect, the production water out of the hyperfiltration membrane assembly and pole Deionized membrane stack water inlet is connected, and the deionized membrane stack of the falling pole production water out is connected with water producing tank;The PLC controls Device respectively with self priming pump, solenoid valve, online electrical conductivity, the deionized membrane stack of falling pole device, online acidometer, solar cell and Solar panels are electrically connected with parallel way.
Wherein, in the portable electrolemma brackish water desalination device of above-mentioned Driven by Solar Energy, the solenoid valve is specifically mounted on Following position:Self priming pump water outlet bypasses and the inlet/outlet pipe of hyperfiltration membrane assembly road:Activated carbon adsorption component water outlet is with surpassing On the connecting line of filter membrane component water inlet, on the connecting line of activated carbon adsorption component water outlet and hyperfiltration membrane assembly lower end, On the outlet pipeline of hyperfiltration membrane assembly bottom, on the connecting line of hyperfiltration membrane assembly production water out and online conductivity meter water inlet.
Wherein, in the portable electrolemma brackish water desalination device of above-mentioned Driven by Solar Energy, the quantity of the online electrical conductivity For 1~3, wherein at least one is arranged on the pipeline between hyperfiltration membrane assembly water outlet and the deionized membrane stack of falling pole device, In addition the desalination water in the deionized membrane stack of falling pole device, condensed water outlet pipeline on depending on actual needs set or be not provided with.
Wherein, in the portable electrolemma brackish water desalination device of above-mentioned Driven by Solar Energy, the online acidometer is arranged on On the desalination water of the deionized membrane stack of falling pole device, condensed water outlet pipeline or according to reality when pH value need not be monitored It is not provided with.
Compared with the routine techniques such as existing electrodialysis brackish water desalination, the beneficial effects of the invention are as follows:
1st, this method is the bitter desalting membrane process using EDIR as core, has combined secondary filter, micro-filtration, activity The multistage pretreating process such as charcoal and ultrafiltration, forms brackish water desalination integrating process technique.By also being filled out in the enriched chamber of EDIR Ion exchange resin is filled, and imposes electrode switching operation, forms the electrodeionization of falling pole (EDIR) new process so that on conventional meaning EDI inflow requirements reduce, to desalinate bitter.Meanwhile filling possesses conduction and ion exchange in electrode chamber Ion Exchange Resin In The Mixing Bed greatlys improve the conductive capability of electrode chamber, reduces the power consumption of device;In addition, can also it mitigate Electrode reaction is conducive to the operation steady in a long-term of device.More main technical characteristic is the work of the EDIR electrolemma devices of core Make the output voltage that voltage is specified solar cell, i.e. 24V, without additional adjustment;The desalination water of EDIR, condensed water also exist Automatic distribution inside membrane stack, the water use efficiency of entire membrane stack are then fixed as close to 50%, so as to eliminate artificial regulatory and grasp by mistake Make, with more portability;Self priming pump is equally driven by solar cell with the fixation direct voltage output of 24V, and whole device can To realize that this method is in bitter in addition to solar cell under the conditions of bitter of the raw water salt content no more than 4000mg/L Each ion remaval rate stabilization each ion concentration in 90% or so, production water may conform to national standards for drinking water quality Requirement in GB5749-2006, production water TDS are not higher than 600mg/L.
2nd, the present apparatus is controlled using PLC, solves the adjustings such as existing electric drive membrane process multithread gauge, valve and power supply dress The inconvenience put;Easy to operate to adapt to using solar cell as electric power system, the requirement being convenient for carrying can make up concentration The deficiency of way of supplying water realizes the round-the-clock purification of water quality desalination exempted under the conditions of electricity, and acting industry water supply for outdoor machine provides safeguard.
Description of the drawings
Fig. 1 is a kind of flow of the portable electrolemma brackish water desalination device embodiment of Driven by Solar Energy provided by the invention Schematic diagram (in figure, "-" represents piping connection portion, and " ┄ " represents circuit part);
Reference numeral is as follows:1- raw water boxs, 2- self priming pumps, 3- solenoid valves, 4- secondary filter components, 5- micro-filtration membrane modules, 6- activated carbon adsorption components, 7- hyperfiltration membrane assemblies, the online conductivity meters of 8-, 9-EDIR membrane stack devices, the online acidometers of 10-, 11- Solar cell, 12-PLC controllers, 13- solar panels, 14- water producing tanks.
Specific embodiment
A kind of portable electrolemma brackish water desalination device of Driven by Solar Energy as shown in Figure 1, the device include raw water box 1st, self priming pump 2, solenoid valve 3, pre-processing assembly (secondary filter component 4, micro-filtration membrane module 5, activated carbon adsorption component 6), ultrafiltration Membrane module 7, online conductivity meter 8, EDIR membrane stacks device 9, online acidometer 10, solar cell 11, PLC controller 12, too Positive energy plate 13, water producing tank 14;Pre-processing assembly is by sequentially connected secondary filter component 4, microfiltration component 5 and activated carbon adsorption group Part 6 forms;The water outlet of activated carbon adsorption component 6 is connected with the water inlet of hyperfiltration membrane assembly 7, and the production water of hyperfiltration membrane assembly 7 goes out Mouth is connected with 9 water inlet of EDIR membrane stacks device;EDIR membrane stacks device 9 produces water out and is connected with water producing tank 14;The PLC controls Device 12 respectively with self priming pump 2, solenoid valve 3, online electrical conductivity 8, EDIR membrane stacks device 9, online acidometer 10, solar cell 11 It is connected with solar panels 13 with parallel way;Self priming pump, solenoid valve and DC power supply needed for EDIR membrane stacks are by solar cell 11 provide, and integral solar battery 11 is equipped with 4 sets of extension solar panels 13 of quantity according to actual needs, has fully ensured that whole Electric energy storage needed for covering device;The mutual cooperation for each solenoid valve 3 that hyperfiltration membrane assembly 7 passes through its water inlet pipe and water outlet pipe road, can be with Realize and regularly just rinsing and backwash in PLC controller 12 times, so as to which film wire be avoided to block too early, ensure device it is longer when Between working life;
The desalination water of EDIR membrane stack devices and condensed water water outlet, are switched as electrode is switched.It is extremely preceding each time Desalination water water outlet is extremely being new condensed water water outlet afterwards;And original condensed water water outlet, then become new desalination Product water water outlet.After electrode is switched, only new fresh water outlet pipe need to be accessed water producing tank.In any case, such as During outdoor study, water producing tank 14 can not also be carried, fresh water with system with.Similarly, in order to improve portability, can also save Raw water box 1 directly draws water to earth surface water source using self priming pump 2 and carries out purification desalination.
Hyperfiltration membrane assembly 7 in whole system, before and after share the solenoid valves 3 of 4 different positions:Hyperfiltration membrane assembly 7 Inlet/outlet pipe road:On the connecting line of 6 water outlet of activated carbon adsorption component and 7 water inlet of hyperfiltration membrane assembly, activated carbon adsorption On 6 water outlet of component and the connecting line of 7 lower end of hyperfiltration membrane assembly, on 7 bottom outlet pipeline of hyperfiltration membrane assembly, hyperfiltration membrane assembly On the connecting line of 7 production water outs and online 8 water inlet of conductivity meter.It, can be according to raw water under the action of PLC controller 12 Situations such as water quality situation, membrane module permeant flux, in time adjusts the parameter setting in PLC program, easily it is carried out just It rinses and backwashes.
When carrying out brackish water desalination using above device, raw water enters pretreatment stage through self priming pump 2, successively through accurate mistake Component 4, micro-filtration membrane module 5, activated carbon adsorption component 6 and hyperfiltration membrane assembly 7 are filtered, removes turbidity, particulate matter, glue in water removal respectively The impurity such as body, peculiar smell, larger molecular organics and microorganism so that the haze reduction of water to below 1NTU or even lower, microorganism Then it is removed completely.
Online conductivity meter 8 is equipped with 3, the pipe being separately mounted between 7 water outlet of hyperfiltration membrane assembly and EDIR membrane stacks device 9 On the road, the desalination water of EDIR membrane stacks device 9, on the outlet pipeline of condensed water.If detecting, raw water salt content is excessively high, such as electrical conductivity It is more than 5000mg/L more than 10000 μ S/cm or TDS, then the automatic appropriate electrode that reduces is switched the cycle by PLC controller 12, is prevented Potential fouling risk.
Online acidometer 10 is arranged on the desalination water of EDIR membrane stacks device 9, on condensed water outlet pipeline or according to reality It is not provided with when pH value need not be monitored.
Strong acid and strong base mixed bed ion is filled in the enriched chambers of EDIR membrane stack devices, diluting compartment and electrode chamber and exchanges tree Fat, yin, yang resin volume ratio are 4:6~6:4, yin and yang resin grain size is 0.45~0.9mm, more conventional normal resin grain size point Cloth scope 0.315-1.2mm is opposite narrow.Relatively narrow resin particle diameter distribution enables to current every indoor water-flow equation Evenly, contact of the current with resin is more abundant, reaches stable state more rapidly.Further, the present invention also fills in electrode chamber Same Ion Exchange Resin In The Mixing Bed can greatly improve the conductive capability of electrode chamber, reduce the power consumption of device;This Outside, resin also significantly mitigates electrode reaction, reduces Cl2And O2Generation, be conducive to the operation steady in a long-term of device.
Embodiment 1
In the present embodiment, using level-one two-part EDIR membrane stack configurations, totally 8 films pair, i.e. membrane stack share each 8 desalinations Room and 8 enriched chambers, the size of each current compartment is 100*300*3mm.The constant DC voltage exported with solar cell Driving powers of the 24V as self priming pump and EDIR membrane stacks is 2891mg/L (electrical conductivity 5.12mScm to TDS-1) it is true Bitter carries out desalinating desalting, and main operating parameters and water-in and water-out water quality are as shown in table 1:
1 operating parameter of table and water-in and water-out water quality
In the present embodiment, to the removal rate stabilizations of various ions in bitter 90% or so, each ion contains EDIR devices Amount testing result meets the requirement in national standards for drinking water quality GB5749-2006.EDIR is used and is frequently switched electricity Pole operates, and the time interval of falling pole is 2-3h, and fouling is not found inside EDIR membrane stacks;The rated voltage and electric current of self priming pump used point Not Wei 24V and 1A, processing 3000mg/L or so bitter and water yield for 11L/h on the premise of, EDIR applied currents are about 1.4A, solar-electricity tankage used are 24V8AH, are full of when about 16 is small when single group solar panel charging illumination is normal, with 4 The extension of block solar energy is charged, and under conditions of illumination abundance, the fully charged time is or so 2 hours, it is clear that can ensure device The effective supply of required power supply.
It should be noted that:Above example is for illustrating that a kind of portable electrolemma bitter of Driven by Solar Energy is light Method and apparatus, portable electrolemma method for desalting brackish water and the dress of a kind of Driven by Solar Energy for the offer that is not intended to limit the present invention are provided It puts.Those skilled in the art should be understood that:It can still make any corresponding change and change with disclosure according to the present invention Shape, but these corresponding changes and deformation should all belong to the scope of the claims of the present invention.

Claims (10)

1. the portable electrolemma method for desalting brackish water of a kind of Driven by Solar Energy, which is characterized in that raw water successively passes through " accurate mistake The technological process of filter-micro-filtration-activated carbon adsorption-ultrafiltration-electrodeionization of falling pole " is purified, desalination, and self priming pump used and fall Pole deionized membrane stack using photo-electric solar energy output direct current as driving force, while the condensed water for the electrodeionization of falling pole and Electrode water mutually merges inside membrane stack, and the pattern distributed automatically with total Water with desalination current carries out flow-rate adjustment automatically.
2. a kind of portable electrolemma method for desalting brackish water of Driven by Solar Energy according to claim 1, which is characterized in that The filtering accuracy of secondary filter filter core is 5~10 μm in the secondary filter technological process;Micro-filtration in the micro-filtration technological process The filtering accuracy of film is 0.2~1.0 μm.
3. a kind of portable electrolemma method for desalting brackish water of Driven by Solar Energy according to claim 1, which is characterized in that The filtering accuracy of ultrafiltration membrane is not higher than 0.01 μm in the ultrafiltration technology flow, and ultrafiltration membrane production water produces water turbidity without microorganism Less than 3NTU.
4. a kind of portable electrolemma method for desalting brackish water of Driven by Solar Energy according to claim 1, which is characterized in that In the electrodeionization of the falling pole technological process:Strong acid and strong base mixed bed is filled in whole diluting compartments, enriched chamber and electrode chamber Ion exchange resin, the ratio of yin, yang resin is 4 in the strong acid and strong base Ion Exchange Resin In The Mixing Bed:6~6:4, resin particle Footpath scope is 0.45~0.9mm.
5. a kind of portable electrolemma method for desalting brackish water of Driven by Solar Energy according to claim 1, which is characterized in that Electrode switches the cycle as 2~6h in the electrodeionization of the falling pole technological process.
6. a kind of portable electrolemma method for desalting brackish water of Driven by Solar Energy according to claim 1, which is characterized in that In the electrodeionization of the falling pole technological process:The DC powered power for the deionized membrane stack of falling pole comes from photo-electric solar panels, It is run using constant voltage, applied voltage 24V, 36V, 48V thrin.
7. a kind of portable electrolemma method for desalting brackish water equipment therefor of any one of claim 1~6 Driven by Solar Energy, It is characterized in that, the device includes raw water box (1), self priming pump (2), solenoid valve (3), secondary filter component (4), micro-filtration membrane module (5), activated carbon adsorption component (6), hyperfiltration membrane assembly (7), online conductivity meter (8), the deionized membrane stack of falling pole device (9), Online acidometer (10), solar cell (11), PLC controller (12), photo-electric solar panels (13), water producing tank (14);Essence Close filter assemblies (4), micro-filtration membrane module (5) and activated carbon adsorption component (6) are sequentially connected;The activated carbon adsorption component (6) Water outlet be connected with the water inlet of hyperfiltration membrane assembly (7), the production water out of the hyperfiltration membrane assembly (7) and the electrodeionization of falling pole Membrane stack (9) water inlet is connected, and the deionized membrane stack of falling pole (9) the production water out is connected with water producing tank (14);The PLC controls Device (12) processed respectively with self priming pump (2), solenoid valve (3), online electrical conductivity (8), the deionized membrane stack of falling pole device (9), online Acidometer (10), solar cell (11) and solar panels (13) are electrically connected with parallel way.
8. a kind of portable electrolemma brackish water desalination device of Driven by Solar Energy according to claim 7, which is characterized in that The solenoid valve (3) is specifically mounted on following position:Self priming pump (2) water outlet bypasses, and activated carbon adsorption component (6) water outlet is with surpassing On the connecting line of filter membrane component (7) water inlet, activated carbon adsorption component (6) water outlet and the company of hyperfiltration membrane assembly (7) lower end Take over road, on the outlet pipeline of hyperfiltration membrane assembly (7) bottom, hyperfiltration membrane assembly (7) production water out and online conductivity meter (8) into On the connecting line at the mouth of a river.
9. a kind of portable electrolemma brackish water desalination device of Driven by Solar Energy according to claim 7, which is characterized in that The quantity of the online electrical conductivity (8) is 1~3, and wherein at least one is arranged on hyperfiltration membrane assembly (7) water outlet and is gone with extremely electricity On pipeline between ionic membrane stack device (9), in addition the desalination water in the deionized membrane stack of falling pole device (9), condensed water go out It sets or is not provided with depending on actual needs in water lines;
The online acidometer (10) is arranged on the desalination water of the deionized membrane stack of falling pole device (9), on condensed water outlet pipeline, Or it is not provided with according to reality when pH value need not be monitored.
10. a kind of portable electrolemma brackish water desalination device of Driven by Solar Energy according to claim 7, feature exist In, be not provided on the whole pipelines being connected with the deionized membrane stack of falling pole device (9) to desalination water, condensed water and electrode water into The flowmeter of row flow-rate adjustment and adjustable valve.
CN201711424350.0A 2017-12-25 2017-12-25 The portable electrolemma method for desalting brackish water and device of a kind of Driven by Solar Energy Pending CN108083518A (en)

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Application publication date: 20180529