CN104609498B - A kind of dynamic adsorption purifies the method for heavy metal ion in water - Google Patents
A kind of dynamic adsorption purifies the method for heavy metal ion in water Download PDFInfo
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- CN104609498B CN104609498B CN201510086079.9A CN201510086079A CN104609498B CN 104609498 B CN104609498 B CN 104609498B CN 201510086079 A CN201510086079 A CN 201510086079A CN 104609498 B CN104609498 B CN 104609498B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 62
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000003463 adsorbent Substances 0.000 claims abstract description 51
- 230000008569 process Effects 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 6
- 231100000719 pollutant Toxicity 0.000 claims abstract description 6
- 238000005265 energy consumption Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 37
- 238000001914 filtration Methods 0.000 claims description 30
- 239000012071 phase Substances 0.000 claims description 27
- 239000000523 sample Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- 230000002572 peristaltic effect Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 239000002594 sorbent Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 239000007790 solid phase Substances 0.000 claims description 3
- -1 after process Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 6
- 244000166124 Eucalyptus globulus Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003911 water pollution Methods 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of dynamic adsorption and purify the method for heavy metal ion in water.The water body flow control technology using adsorbent to be fixing phase, design by fixing phase Filter column cleverly, control easily and effectively to obtain efficient dynamic adsorption condition, integrated a kind of dynamic adsorption purifies the technical method of heavy metal ion in water, the most efficiently administers offer a kind of new method, new way for heavy metal pollution emergency disposal, the micro-pollution of rivers and lakes heavy metal.The inventive method carries out micro-pollution process to the river water that major pollutants are heavy metal ion, Lake Water etc., obtaining outside efficient heavy ion remaval effect, there is certain contamination accident emergency function simultaneously, it addition, this inventive method has the advantages such as plant running process stabilization, low energy consumption and operating cost are cheap.
Description
Technical field
The invention belongs to changing waste into resources utilize and water-treatment technology field, purify the method for heavy metal ion in water particularly to a kind of dynamic adsorption.
Background technology
Water is that the mankind depend on for existence one of resource, and it is closely bound up with the sustainable development of society.Nowadays, the mankind have a strong impact on the natural ecosystem of the earth to the vandalism of environment, and the heavy metal with arsenic, chromium and antimony as representative/class heavy metal water pollution condition is especially prominent.At present in water, the minimizing technology of heavy metal mainly has chemical precipitation method, electroflotation, ion exchange, membrane separation process and an absorption method, wherein absorption method owing to it has advantages such as instant effect, renewable recovery, secondary pollution probability are low attention.
Common heavy metal in water adsorption cleaning method is static adsorption, and static adsorptive method processes the shortcoming of solid-liquid separation difficulty after heavy metal existence is adsorbed, and is difficult to be collected adsorbing material and desorbing recycling.
The dynamic adsorption method of purification can utilize outstanding and adsorption rate adsorbent faster to carry out quick dynamic adsorption purifying water body pollutant, can not only various float in trap water, and the oxide on surface is attached by nonionic exchange adsorption and ion-exchange absorption, can effectively remove the heavy metal ion in water, adsorbent can use with regeneration cycle.
At present, the active carbon of the most frequently used adsorbent and modified cellulose etc., but most adsorbent is relatively big because of the degree of refinement of cost height, complex manufacturing or adsorption effect sorbent suspension granule, the selection that it is critical only that adsorbent of dynamic adsorption technology and use.Researchers both domestic and external carry out Study on dynamic adsorption using different adsorbing materials as adsorbent in trial.Plant something lost state structural porous heavy metal absorbent with Eucalyptus something lost state structure Fe/C compound adsorbent as representative is connective due to the three-dimensional network of its special internal structure, and block adsorbent also has outstanding specific surface area performance.Based on this, science determines the flow-control of flowing phase, developing a kind of fixing phase high-efficiency dynamic adsorption cleaning Heavy Metals in Waters ion method, to promoting heavy metal pollution of water body emergency disposal, the heavy metal micropollution of rivers and lakes water body is administered to be had and important meaning.
Summary of the invention
It is an object of the invention to provide a kind of dynamic adsorption and purify the method for heavy metal ion in water.
The thinking of the present invention: the water body flow control technology using adsorbent to be fixing phase, design by fixing phase Filter column cleverly, control easily and effectively to obtain efficient dynamic adsorption condition, integrated a kind of dynamic adsorption purifies the technical method of heavy metal ion in water, the most efficiently administers offer a kind of new method, new way for heavy metal pollution emergency disposal, the micro-pollution of rivers and lakes heavy metal.
Concretely comprise the following steps:
(1) arrange and a kind of purify the device of heavy metal ion in water, promote system, reaction temperature control system, fixing phase dynamic adsorption response system including pending liquid pH value automatic regulating system, the quantitative constant speed of pending liquid and process effluent collection system, said system sets gradually, and is installed on fixed support platform.
Described pending liquid pH value automatic regulating system is made up of acid tank, alkaline tank, pH value regulation controller and pH value probe；Set required pH value, pH value probe real-time measurement values is in contrast, if pH value probe actual measurement pH value is less than setting value, then the Wriggling Pump Head of acid tank starts, add weak acid and regulate the pH value of pending liquid, in like manner, if pH value probe actual measurement pH value is less than setting value, then the Wriggling Pump Head of alkaline tank starts, and adds weak base and regulates the pH value of pending liquid.
The described quantitative constant speed of pending liquid promotes system and is made up of pending liquid collecting-tank and water inlet peristaltic pump, water inlet peristaltic pump can be according to processing the water speed water yield requiring to set water inlet, and it is capable of start by set date, timing closedown and timing speed change, with final realization, the accurate of processing speed is controlled.
Described reaction temperature control system is by temperature probe, temperature controller, heater and temperature controlled water heat promote system composition under water, temperature controlled water heat promotes system and uses the mode of up flow type warm water submergence to realize fixing in multifunctional filtering post the adsorption reaction ambient temperature control of phase filter tube, when temperature reaches to need level, heater is automatically switched off under water, natural cooling is lowered the temperature, the purpose of temperature is reached effectively to control by repeatedly rising gentle cooling, this system can ensure the recycling of heat energy by warm water backflow, reduce and temperature controlled add thermal energy consumption, reduce operating cost.
Described fixing phase dynamic adsorption response system is that dynamic adsorption purifies the main body reactor of heavy metal ion in water, it is made up of fixed support, multifunctional filtering post, fixing phase filter tube and adsorbent fixed system, fixed support is made up of an iron and multiple fixing, and its function is fixing multifunctional filtering post, fixes phase filter tube, adsorbent fixed system and attached spool；Adsorbent fixed system is made up of the knob valve of two groups of fleece, rubber packing ring and perforates consistent with fixing phase filter tube inner tube bore, fixing phase filter tube is blocked up and down, realize the loss of adsorbent during powder, graininess, the fixation of block adsorbent, effectively closure dynamic adsorption；Multifunctional filtering post is made up of the concentric column of diameter 20mm and diameter 10mm, length is 150mm, space between two concentric columns controls storage tank respectively with temperature by the import and export of 3mm and temperature controlled water heat promotes system and is connected, and is adjusted by the reaction temperature in the multifunctional filtering post to being arranged on fixed support of the upper warm water in the space between two concentric columns.
Described process effluent collection system includes processing water outlet collecting-tank, and it be the mixing pit of quantitative collection water outlet liquid, simultaneously can timed collection blend water sample, in order to sampling for test.
(2) in the purification water that step (1) is arranged, the device of heavy metal ion is in dynamic adsorption purification process, water intake mode uses up flow type, to ensure that adsorbent is suspended in the inner prop of multifunctional filtering post during dynamic adsorption, and solid phase time of contact can be made full use of, it is effectively improved the effect of dynamic adsorption, adsorbent fixed system is fixed on the two ends of multifunctional filtering post, fleece and packing ring are all arranged in two, two all can conveniently be taken out, beneficially adsorbent, the replacing of filter membrane and cleaning.
(3) in the purification water that step (1) is arranged, the main body reaction zone of the device of heavy metal ion is at the inner prop of multifunctional filtering post, its dynamic adsorption effect is determined by the quick adsorption ability of adsorbent, adsorbent is the modified heavy metal absorbent that plant loses state structure, make full use of plant and lose the loose structure of state, adsorbent is powdery or bulk, when carrying out dynamic adsorption for block adsorbent, the adsorbent that can improve Dynamic gas-mixing and adsorption devices recycles and cleans renewal.
(4) heavy metal ion in pending liquid during flowing through the device that step (3) is arranged by coming in contact absorption with adsorbent, thus retain pollutant on the sorbent, after process, liquid continues upper outflow multifunctional filtering post extremely process water outlet collecting-tank, i.e. realizes dynamic adsorption and purifies heavy metal ion in water.
Use the present invention that the river water that major pollutants are heavy metal ion, Lake Water etc. are carried out micro-pollution process, obtaining outside efficient heavy ion remaval effect, there is certain contamination accident emergency function simultaneously, it addition, this inventive method has the advantages such as plant running process stabilization, low energy consumption and operating cost are cheap.
Accompanying drawing explanation
Fig. 1 is to purify the structural representation of heavy metal ion device in water used by the present invention.
Labelling in figure: 1-pending liquid pH value automatic regulating system；The quantitative constant speed of the pending liquid of 2-promotes system；3-reaction temperature control system；4-fixes phase dynamic adsorption response system；5-processes effluent collection system；6-fixed support platform；7-acid tank；8-alkaline tank；9-pH value regulation controller；10-pH value is popped one's head in；11-pending liquid collecting-tank；12-is intake peristaltic pump；13-multifunctional filtering post；14-fixes phase filter tube；15-adsorbent fixed system；16-processes water outlet collecting-tank；17-temperature controller；18-temperature probe；19-heater under water；20-atmospheric valve；21-temperature controls storage tank；22-temperature controlled water heat promotes system；23-fixed support.
Fig. 2 is the dynamic adsorption breakthrough curve under different temperatures adsorbed arsenic in the embodiment of the present invention.
Detailed description of the invention
Embodiment:
(1) arrange and a kind of purify the device of heavy metal ion in water, as shown in Figure 1, promote system 2, reaction temperature control system 3, fixing phase dynamic adsorption response system 4 including pending liquid pH value automatic regulating system 1, the quantitative constant speed of pending liquid and process effluent collection system 5, said system sets gradually, and is installed on fixed support platform 6.
Described pending liquid pH value automatic regulating system 1 is made up of acid tank 7, alkaline tank 8, pH value regulation controller 9 and pH value probe 10；Set required pH value, pH value 10 real-time measurement values of popping one's head in are in contrast, if pH value probe 10 actual measurement pH value is less than setting value, then the Wriggling Pump Head of acid tank 7 starts, add weak acid and regulate the pH value of pending liquid, in like manner, if pH value probe 10 actual measurement pH value is less than setting value, then the Wriggling Pump Head of alkaline tank 8 starts, and adds weak base and regulates the pH value of pending liquid.
The described quantitative constant speed of pending liquid promotes system 2 and is made up of pending liquid collecting-tank 11 and water inlet peristaltic pump 12, water inlet peristaltic pump 12 can be according to processing the water speed water yield requiring to set water inlet, and it is capable of start by set date, timing closedown and timing speed change, with final realization, the accurate of processing speed is controlled.
Described reaction temperature control system 3 is by temperature probe 18, temperature controller 17, heater 19 and temperature controlled water heat lifting system 22 form under water, temperature required water is stored in the temperature control storage tank 21 being provided with atmospheric valve 20, promote system 22 for temperature controlled water heat to use, temperature controlled water heat promotes system 22 and uses the method for up flow type warm water submergence to realize fixing in multifunctional filtering post 13 the adsorption reaction ambient temperature control of phase filter tube 14, when temperature reaches to need level, heater 19 is automatically switched off under water, natural cooling is lowered the temperature, the purpose of temperature is reached effectively to control by repeatedly rising gentle cooling, this system can ensure the recycling of heat energy by warm water backflow, reduce and temperature controlled add thermal energy consumption, reduce operating cost.
Described fixing phase dynamic adsorption response system 4 is the main body reactor of dynamic adsorption purifying water body heavy metal ion, it is made up of fixed support 23, multifunctional filtering post 13, fixing phase filter tube 14 and adsorbent fixed system 15, fixed support 23 is made up of an iron and multiple fixing, and its function is fixing multifunctional filtering post 13, fixes phase filter tube 14, adsorbent fixed system 15 and attached spool；Adsorbent fixed system 15 is made up of the knob valve of two groups of fleece, rubber packing ring and perforates consistent with fixing phase filter tube 14 inner tube bore, fixing phase filter tube about 14 is blocked, realize the loss of adsorbent during powder, graininess, the fixation of block adsorbent, effectively closure dynamic adsorption；Multifunctional filtering post 13 is made up of the concentric column of diameter 20mm and diameter 10mm, length is 150mm, space between two concentric columns controls storage tank 21 respectively with temperature by the import and export of 3mm and temperature controlled water heat promotes system 22 and is connected, and is adjusted by the reaction temperature in the multifunctional filtering post 13 to being arranged on fixed support 23 of the upper warm water in the space between two concentric columns.
Described process effluent collection system 5 includes processing water outlet collecting-tank 16, and it be the mixing pit of quantitative collection water outlet liquid, simultaneously can timed collection blend water sample, in order to sampling for test.
(2) in the purification water that step (1) is arranged, the device of heavy metal ion is in dynamic adsorption purification process, water intake mode uses up flow type, to ensure that adsorbent is suspended in the inner prop of multifunctional filtering post 13 during dynamic adsorption, and solid phase time of contact can be made full use of, it is effectively improved the effect of dynamic adsorption, adsorbent fixed system 15 is fixed on the two ends of multifunctional filtering post 13, fleece and packing ring are all arranged in two, two is all convenient takes out, beneficially adsorbent, the replacing of filter membrane and cleaning.
(3) in the purification water that step (1) is arranged, the main body reaction zone of the device of heavy metal ion is at the inner prop of multifunctional filtering post 13, its dynamic adsorption effect is determined by the quick adsorption ability of adsorbent, adsorbent is the modified heavy metal absorbent that plant loses state structure, makes full use of plant and loses the loose structure of state.
(4) heavy metal ion in pending liquid during flowing through the device that step (3) is arranged by coming in contact absorption with adsorbent, thus retain pollutant on the sorbent, after process, the upper multifunctional filtering post 13 that flows out of liquid continuation is to processing water outlet collecting-tank 16, i.e. realizes dynamic adsorption and purifies heavy metal ion in water.
The present embodiment use the dilute hydrochloric acid of 0.01mol/L and the dilute solution of sodium hydroxide of 0.01mol/L as the regulator of pH value, set the pH value of pending liquid as 3, pending liquid is the arsenic solution of initial concentration 20mg/L, length × width × height=100mm × 100mm × the 200mm of pending solution collecting-tank 11, solution can add at any time；Setting water inlet peristaltic pump 12 and promote the flow velocity of pending liquid as 5.14mL/min, adsorbent selects Eucalyptus to lose state Fe/C composite, and < 100 mesh fill in multifunctional filtering post 13 particle diameter, and the height of multifunctional filtering post 13 is 150mm, a diameter of 30mm.
Design temperature T respectively 25 DEG C, 35 DEG C and 45 DEG C carry out 3 parallel tests, through the experiment of about 300 minutes, obtain complete dynamic adsorption breakthrough curve, as shown in Figure 2.When 25 DEG C Eucalyptus lose state Fe/C composite to water in the absorbability of As (V) relative to 35 DEG C and 45 DEG C time low.At three temperature, adsorption column reaches the time of breakthrough point and is respectively 98min, 113min and 135min, and the time reaching exhaustion point is respectively 245min, 271min and 280min, and equilibrium adsorption capacity is respectively 10.52mg/g, 12.13mg/g and 12.72mg/g.
The above; it it is only the preferred embodiment of the inventive method; not the present invention is made any pro forma restriction, every any simple modification, equivalent variations and modification made above example according to the technical spirit of the present invention, the most still belongs to the protection domain of technical solution of the present invention.
Claims (1)
1. a dynamic adsorption purifies the method for heavy metal ion in water, it is characterised in that concretely comprise the following steps:
(1) arrange and a kind of purify the device of heavy metal ion in water, promote system, reaction temperature control system, fixing phase dynamic adsorption response system including pending liquid pH value automatic regulating system, the quantitative constant speed of pending liquid and process effluent collection system, said system sets gradually, and is installed on fixed support platform；
Described pending liquid pH value automatic regulating system is made up of acid tank, alkaline tank, pH value regulation controller and pH value probe；Set required pH value, pH value probe real-time measurement values is in contrast, if pH value probe actual measurement pH value is higher than setting value, then the Wriggling Pump Head of acid tank starts, add weak acid and regulate the pH value of pending liquid, in like manner, if pH value probe actual measurement pH value is less than setting value, then the Wriggling Pump Head of alkaline tank starts, and adds weak base and regulates the pH value of pending liquid；
The described quantitative constant speed of pending liquid promotes system and is made up of pending liquid collecting-tank and water inlet peristaltic pump, water inlet peristaltic pump can be according to processing the water speed water yield requiring to set water inlet, and it is capable of start by set date, timing closedown and timing speed change, with final realization, the accurate of processing speed is controlled；
Described reaction temperature control system is by temperature probe, temperature controller, heater and temperature controlled water heat promote system composition under water, temperature controlled water heat promotes system and uses the mode of up flow type warm water submergence to realize fixing in multifunctional filtering post the adsorption reaction ambient temperature control of phase filter tube, when temperature reaches to need level, heater is automatically switched off under water, natural cooling is lowered the temperature, the purpose of temperature is reached effectively to control by repeatedly rising gentle cooling, this system can ensure the recycling of heat energy by warm water backflow, reduce and temperature controlled add thermal energy consumption, reduce operating cost；
Described fixing phase dynamic adsorption response system is that dynamic adsorption purifies the main body reactor of heavy metal ion in water, it is made up of fixed support, multifunctional filtering post, fixing phase filter tube and adsorbent fixed system, fixed support is made up of an iron and multiple fixing, and its function is fixing multifunctional filtering post, fixes phase filter tube, adsorbent fixed system and attached spool；Adsorbent fixed system is made up of the knob valve of two groups of fleece, rubber packing ring and perforates consistent with fixing phase filter tube inner tube bore, fixing phase filter tube is blocked up and down, realize the loss of adsorbent during powder, graininess, the fixation of block adsorbent, effectively closure dynamic adsorption；Multifunctional filtering post is made up of the concentric column of diameter 20mm and diameter 10mm, length is 150mm, space between two concentric columns controls storage tank respectively with temperature by the import and export of 3mm and temperature controlled water heat promotes system and is connected, and is adjusted by the reaction temperature in the multifunctional filtering post to being arranged on fixed support of the upper warm water in the space between two concentric columns；
Described process effluent collection system includes processing water outlet collecting-tank, and it be the mixing pit of quantitative collection water outlet liquid, simultaneously can timed collection blend water sample, in order to sampling for test；
(2) in the purification water that step (1) is arranged, the device of heavy metal ion is in dynamic adsorption purification process, water intake mode uses up flow type, to ensure that adsorbent is suspended in the inner prop of multifunctional filtering post during dynamic adsorption, and solid phase time of contact can be made full use of, it is effectively improved the effect of dynamic adsorption, adsorbent fixed system is fixed on the two ends of multifunctional filtering post, fleece and packing ring are all arranged in two, two all can conveniently be taken out, beneficially adsorbent, the replacing of filter membrane and cleaning；
(3) in the purification water that step (1) is arranged, the main body reaction zone of the device of heavy metal ion is at the inner prop of multifunctional filtering post, its dynamic adsorption effect is determined by the quick adsorption ability of adsorbent, adsorbent is the modified heavy metal absorbent that plant loses state structure, make full use of plant and lose the loose structure of state, adsorbent is powdery or bulk, when carrying out dynamic adsorption for block adsorbent, the adsorbent that can improve Dynamic gas-mixing and adsorption devices recycles and cleans renewal；
(4) heavy metal ion in pending liquid during flowing through the device that step (3) is arranged by coming in contact absorption with adsorbent, thus retain pollutant on the sorbent, after process, liquid continues upper outflow multifunctional filtering post extremely process water outlet collecting-tank, i.e. realizes dynamic adsorption and purifies heavy metal ion in water.
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| US7794606B2 (en) * | 2007-04-09 | 2010-09-14 | Innovation Services, Inc. | Modular flameless waste treatment method |
| US20130233796A1 (en) * | 2012-03-06 | 2013-09-12 | Narasimha M. Rao | Treatment of industrial water systems |
| WO2013160779A1 (en) * | 2012-04-27 | 2013-10-31 | Biological Petroleum Cleaning Ltd. | Method and system for treating waste material |
| CN103721686A (en) * | 2013-12-24 | 2014-04-16 | 宜兴市金德环保设备有限公司 | Corn cob morph-genetic material capable of removing arsenic in wastewater |
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