CN203095678U - Multi-stage inclined plate electric filter bed - Google Patents
Multi-stage inclined plate electric filter bed Download PDFInfo
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- CN203095678U CN203095678U CN201320037819.6U CN201320037819U CN203095678U CN 203095678 U CN203095678 U CN 203095678U CN 201320037819 U CN201320037819 U CN 201320037819U CN 203095678 U CN203095678 U CN 203095678U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 58
- 238000011043 electrofiltration Methods 0.000 claims description 107
- 238000012856 packing Methods 0.000 claims description 56
- 238000011010 flushing procedure Methods 0.000 claims description 30
- 238000009826 distribution Methods 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 29
- 229910052742 iron Inorganic materials 0.000 abstract description 14
- 239000002253 acid Substances 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001448 ferrous ion Inorganic materials 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000010802 sludge Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 25
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 15
- 239000000945 filler Substances 0.000 description 12
- 238000000746 purification Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 239000000571 coke Substances 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 10
- 239000010439 graphite Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 239000010814 metallic waste Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NJFMNPFATSYWHB-UHFFFAOYSA-N ac1l9hgr Chemical compound [Fe].[Fe] NJFMNPFATSYWHB-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The utility model discloses a multi-stage inclined plate electric filter bed. The device comprises an overflow weir, an electric filter bed body, a water inlet, a backflash pipeline, a water outlet, a water distributer and a heavy metal strong liquor collecting tank. By adopting the device, the cathode and anode of padding in the electric filter bed are hardly separated, and the padding is easy to replace; payment for iron and ferrous ion is reduced when the heavy metal ion is restored into a simple substance to be recoverd and the heavy metal wastewater is effectively purified at a high speed; the service cycle of the electric filter bed is prolonged; the disadvantages of the electric filter bed are high hardening rate and too much sludge under an acid condition are improved; biochemical indicators of the wastewater are improved; and operation and maintenance are facilitated.
Description
Technical field
The utility model relates to a kind of multistage sloping plate formula electrofiltration bed, belongs to water-treatment technology field.
Background technology
Iron carbon bed facture is a kind of application form that metallic iron is handled waste water technology, and poisonous and harmful, high concentration COD waste water are had good effect.But iron carbon method also has its shortcoming, mainly is that (1) iron filings are easy to harden into piece after the medium-term and long-term immersion of acidic medium, results in blockage, and forms channel, makes operational difficulty, and treatment effect reduces; (2) iron iron amount of stripping under acidic conditions is bigger, and it is many to add the body refuse amount that produces with the back in the alkali.
Heavy metal wastewater thereby mainly is meant the waste water that contains heavy metal of discharging in the Industrial processes such as mining and metallurgy, machinofacture, chemical industry, electronics, instrument.The method of heavy metal containing wastewater treatment is broadly divided into three major types at present,
Chemical precipitation method comprises neutralization precipitation method, sulphide precipitation, the ferrite precipitator method, chemical reduction method, electrochemical process and polymer method;
Physical treatment process comprises absorption method, extraction process, ion exchange method, membrane separation process, evaporation and freezing method etc.;
Biological treatment comprises bio-flocculation process, biochemical process and phytoremediation method.
Traditional method handle the useless cost height of heavy metal, reaction slowly, easily cause secondary pollution, for shortcomings such as the heavy metal of lower concentration are difficult.
Summary of the invention
The utility model purpose is to provide a kind of multistage sloping plate formula electrofiltration bed, this device comprises overflow weir 1, electrofiltration bed main body 2, water-in 3, back flushing pipeline 4, water outlet 5, water-distributing device 6, heavy metal dope receiving tank 7, overflow weir 1 is arranged on electrofiltration bed main body 2 tops, heavy metal dope receiving tank 7 is arranged on electrofiltration bed main body 2 bottoms, water-distributing device 6 is arranged between electrofiltration bed main body 2 and the heavy metal dope receiving tank 7, water-in 3 is connected with water-distributing device 6 by pipeline, water outlet 5 is arranged on the electrofiltration bed main body 2, the inlet of back flushing pipeline 4 is arranged on water outlet 5 positions (promptly with the water inlet of water outlet as the back flushing pipeline, during flushing, inject counter-flushing liquid from water outlet), the top that back flushing pipeline 4 the other ends are arranged on electrofiltration bed main body (2) is used to wash electrofiltration bed main body (2), integral body is positioned at system top, water-in, water outlet and back flushing pipeline are controlled by valve.
Electrofiltration bed main body 2 is right cylinder or rectangular shape in the utility model.
Water-distributing device 6 is the looping network water distributor in the utility model.
Be provided with ramp type bed of packings body 8 in the utility model in the electrofiltration bed main body 2, ramp type bed of packings body 8 is that alternating expression or sequential distribute in the distribution mode of electrofiltration bed main body, wherein the ramp type bed of packings body that distributes of sequential is that 0～45 ° parallel mode is distributed in the electrofiltration bed main body with the angle of inclination, the ramp type bed of packings body that alternating expression distributes is that " Z " font of 1～30 ° is distributed in the electrofiltration bed with the angle of inclination, and every layer of ramp type bed of packings body all links to each other with electrode.
Ramp type bed of packings body 8 is connected in employing negative electrode/negative electrode, cathode/anode, three kinds of forms of anode/anode a kind of in the utility model with electrode.
Ramp type bed of packings body 8 is made by the perforated plastic that is filled with iron filings, coke and graphite pebbles mixture, metal or xyloid plate in the utility model, wherein iron filings and coke are made the iron carbon filler by the mixed of mass ratio 7～12:2～5, be the mixed of 0.1～1:1 by volume with graphite pebbles and iron carbon filler then, mixture is filled in the multihole lamina and makes.
Electrofiltration bed inner stuffing ramp type bed of packings body is divided into two kinds of alternating expression and sequentials, forms multistage sloping plate formula electrofiltration bed, and the filler in each ramp type bed of packings body can be changed, and is not prone to the anode and cathode separation phenomenon.
The utility model is used in purification of heavy metal waste water, specifically carries out as follows:
(1) in multistage sloping plate formula electrofiltration bed, place ramp type bed of packings body after, multistage sloping plate formula electrofiltration bed is applied external voltage, open water inlet valve, make heavy metal wastewater thereby flow into electrofiltration bed main body by water-distributing device, pH is 3～5 in the electrofiltration bed, waste water stops in electrofiltration bed main body and handles 10～30min under the normal temperature, and water outlet is flowed out from water outlet by overflow weir and also carried out follow-up advanced treatment on demand;
(2) multistage sloping plate formula electrofiltration bed operating is after 20～60 days, close water inlet valve and outlet valve, open back flushing pipeline valve, adopting mass percent concentration is that 1%～8% acid solution carries out back flushing to electrofiltration bed main body and handles, at this moment, institute's making alive mode is anode/anode in the electrofiltration bed, and the treatment time is 40～70min, water outlet enters heavy metal dope receiving tank and carries out follow-up heavy metal enrichment method processing for concentrating the heavy metal acid solution.
Electrofiltration bed impressed voltage described in the utility model is the alternating-current of 0.1～10V.
The acid solution of back flushing described in the utility model is sulfuric acid, nitric acid or hydrochloric acid.
Of the present utility model a bit and technique effect as follows:
The utility model proposes a kind of multistage sloping plate formula electrofiltration bed, this device is in conjunction with conventional iron carbon bed process and electrochemical method, the Fe in the electrofiltration bed
2+Can make various heavy metal ion formation have the ferrite matrix precipitation of magnetic; This method can be removed contents of many kinds of heavy metal ion in the waste water, and the particle of formation is big and be easy to separation, and the electrofiltration bed carries out back flushing after work for some time handles, and handles thereby make heavy metal ion obtain the concentrated subsequent purification of further carrying out.
This multistage sloping plate formula electrofiltration bed makes the iron carbon filler not have existing demixing phenomenon, and is easy to change; Make the heavy metal element in the heavy metal wastewater thereby reduce at the electrofiltration bed system, carry out effectively concentrating reclaiming at heavy metal dope receiving tank, when heavy metal wastewater thereby is able to effectively purify at a high speed, reduce paying of iron and ferrous ion, prolonged the life cycle of electrofiltration bed, having improved conventional iron carbon bed easily hardens under acidic conditions, shortcomings such as body refuse is many, and life cycle is short, the biodegradability index of raising heavy metal wastewater thereby, for follow-up advanced treatment provides the foundation, and this device is done easy to maintenance.
Description of drawings
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the structural representation of the utility model water-distributing device;
Fig. 3 is a ramp type bed of packings body sequential distribution schematic diagram in the utility model electrofiltration bed main body;
Fig. 4 is a ramp type bed of packings body alternating expression distribution schematic diagram in the utility model electrofiltration bed main body;
Among the figure: the 1st, overflow weir; The 2nd, electrofiltration bed main body; The 3rd, water-in; The 4th, the back flushing pipeline; The 5th, water outlet; The 6th, water-distributing device; The 7th, heavy metal dope receiving tank; The 8th, ramp type bed of packings body.
Embodiment
Below by embodiment the utility model is described in further detail, but the utility model protection domain is not limited to described content.
Embodiment 1:This multistage sloping plate formula electrofiltration bed comprises overflow weir 1, electrofiltration bed main body 2, water-in 3, back flushing pipeline 4, water outlet 5, water-distributing device 6, heavy metal dope receiving tank 7, overflow weir 1 is arranged on electrofiltration bed main body 2 tops, heavy metal dope receiving tank 7 is arranged on electrofiltration bed main body 2 bottoms, water-distributing device 6 is arranged between electrofiltration bed main body 2 and the heavy metal dope receiving tank 7, water-in 3 is connected with water-distributing device 6 by pipeline, water outlet 5 is arranged on the electrofiltration bed main body 2, the inlet of back flushing pipeline 4 is arranged on the water outlet position, the top that the other end is arranged on electrofiltration bed main body 2 is used to wash electrofiltration bed main body 2, integral body is positioned at system top, water-in, water outlet and back flushing pipeline are controlled by valve; Wherein electrofiltration bed main body 2 is a right cylinder, be provided with ramp type bed of packings body in the electrofiltration bed main body 2, ramp type bed of packings body 8 is that sequential distributes in the distribution mode of electrofiltration bed main body 2, wherein the ramp type bed of packings body that distributes of sequential is that 30 ° parallel mode is distributed in the electrofiltration bed main body 2 with the angle of inclination, ramp type bed of packings body 8 is connected the negative electrode/negative electrode form that adopts with electrode, be that every layer of ramp type bed of packings body all links to each other (seeing Fig. 1-3) with negative electrode.
Ramp type bed of packings body 8 is made by the perforated plastic plate that is filled with iron filings, coke and graphite pebbles mixture in the present embodiment,
Wherein to press the mixed of mass ratio 7:2 even for iron filings and coke, makes the iron carbon filler, is the mixed of 0.1:1 by volume with commercially available graphite pebbles and iron carbon filler then, and mixture is filled in the cellular-plastic panels and makes.
The application method of present embodiment device in purification of heavy metal waste water, particular content is as follows:
(1) heavy metal wastewater thereby of present embodiment processing is that copper is waste water, and copper content is 2g/L;
(2) after sequential places ramp type bed of packings body in multistage sloping plate formula electrofiltration bed, check that electrofiltration bed intake-outlet and other devices are complete, open water inlet valve and outlet valve, close back flushing pipeline valve, copper is that heavy metal wastewater thereby enters the electrofiltration bed from wastewater disposal basin, and PH is 3 in the electrofiltration bed, and temperature is a normal temperature, retention time of sewage is 10min, and water outlet is flowed out from water outlet by overflow weir and also carried out follow-up advanced treatment on demand;
(3) operation of multistage sloping plate formula electrofiltration bed system was closed water inlet valve and outlet valve after 20 days, opened back flushing pipeline valve, was 8% H from water outlet implantation quality percentage concentration
2SO
4Solution carries out back flushing to electrofiltration bed main body to be handled, and the external making alive mode of ramp type bed of packings is anode/anode, and the treatment time is 40min, and water outlet adopts ordinary method to carry out follow-up heavy metal purification process after resting on the heavy metal receiving tank; Copper content is 0.02g/L in this device processing back water outlet.
Embodiment 2:Present embodiment multistage sloping plate formula electrofiltration bed structure is with embodiment 1, difference is that electrofiltration bed main body 2 is rectangular parallelepiped, ramp type bed of packings body is that alternating expression distributes in the distribution mode of electrofiltration bed main body, the ramp type bed of packings body that alternating expression distributes is that " Z " font of 10 ° is distributed in (see figure 4) in the electrofiltration bed with the angle of inclination, ramp type bed of packings body is connected employing anode/cathode form with electrode, promptly every layer of ramp type bed of packings body alternately links to each other with positive electrode with negative electrode.
Ramp type bed of packings body 8 is made by the woodboard with holes that is filled with iron filings, coke and graphite pebbles mixture in the present embodiment,
Wherein to press the mixed of mass ratio 8:3 even for iron filings and coke, makes the iron carbon filler, is the mixed of 0.4:1 by volume with commercially available graphite pebbles and iron carbon filler then, and mixture is filled in the porous plank and makes.
The application method of present embodiment device in purification of heavy metal waste water, particular content is as follows:
(1) heavy metal wastewater thereby of present embodiment processing is nickeliferous heavy metal wastewater thereby, and nickel content is 174mg/L;
(2) after alternating expression places ramp type bed of packings body in multistage sloping plate formula electrofiltration bed, check that electrofiltration bed intake-outlet and other devices are complete, open water inlet valve and outlet valve, close back flushing pipeline valve, heavy metal wastewater thereby enters the electrofiltration bed from wastewater disposal basin, and PH is 4 in the electrofiltration bed, and temperature is a normal temperature, waste water is 15min in the residence time of electrofiltration bed, and water outlet is flowed out from water outlet by overflow weir and also carried out follow-up advanced treatment on demand;
(3) operation of multistage sloping plate formula electrofiltration bed system is after 30 days, close water inlet valve and outlet valve, open back flushing pipeline valve, be that 5% hydrochloric acid soln carries out back flushing to it and handles from water outlet implantation quality percentage concentration, the external making alive mode of ramp type bed of packings is anode/anode, treatment time is 50min, and water outlet is carried out follow-up heavy metal purification process after resting on the heavy metal receiving tank; Nickel content is 0.25mg/L in this device processing back water outlet.
Embodiment 3: present embodiment multistage sloping plate formula electrofiltration bed structure is with embodiment 1, difference is that electrofiltration bed main body 2 is for circular, ramp type bed of packings body is that sequential distributes in the distribution mode of electrofiltration bed main body, wherein the ramp type bed of packings body that distributes of sequential is that 0 ° parallel mode is distributed in the electrofiltration bed main body 2 with the angle of inclination, ramp type bed of packings body is connected employing anode/anode form with electrode, promptly every layer of ramp type bed of packings body all links to each other with positive electrode.
Ramp type bed of packings body 8 is made by the perforated plastic plate that is filled with iron filings, coke and graphite pebbles mixture in the present embodiment,
Wherein to press the mixed of mass ratio 10:4 even for iron filings and coke, makes the iron carbon filler, is the mixed of 0.7:1 by volume with commercially available graphite pebbles and iron carbon filler then, and mixture is filled in many plastic plates and makes.
The application method of present embodiment device in purification of heavy metal waste water, particular content is as follows:
1. the heavy metal wastewater thereby of present embodiment processing is arsenical heavy metal wastewater thereby, and arsenic content is 89mg/L;
2. after sequential places ramp type bed of packings body in multistage sloping plate formula electrofiltration bed, check that electrofiltration bed intake-outlet and other devices are complete, open water inlet valve and outlet valve, close back flushing pipeline valve, heavy metal wastewater thereby enters the electrofiltration bed from wastewater disposal basin, and PH is 5 in the electrofiltration bed, and temperature is a normal temperature, waste water is 20min in the residence time of electrofiltration bed, and water outlet is flowed out from water outlet by overflow weir and also carried out follow-up advanced treatment on demand;
3. the operation of multistage sloping plate formula electrofiltration bed system is after 40 days, close water inlet valve and outlet valve, open back flushing pipeline valve, be that 2% salpeter solution carries out back flushing to it and handles with mass percent concentration, the external making alive mode of ramp type bed of packings is anode/anode, treatment time is 60min, and water outlet is carried out follow-up heavy metal purification process after resting on the heavy metal receiving tank; Zinc content is 0.31mg/L in this device processing back water outlet.
Embodiment 4: present embodiment multistage sloping plate formula electrofiltration bed structure is with embodiment 1, difference is that electrofiltration bed main body 2 is rectangle, ramp type bed of packings body is that alternating expression distributes in the distribution mode of electrofiltration bed main body, the ramp type bed of packings body that alternating expression distributes is that " Z " font of 30 ° is distributed in the electrofiltration bed with the angle of inclination, ramp type bed of packings body is connected employing negative electrode/negative electrode form with electrode, promptly every layer of ramp type bed of packings body all links to each other with negative electrode.
Ramp type bed of packings body 8 is made by the steel plate with holes that is filled with iron filings, coke and graphite pebbles mixture in the present embodiment,
Wherein to press the mixed of mass ratio 12:5 even for iron filings and coke, makes the iron carbon filler, is the mixed of 1:1 by volume with commercially available graphite pebbles and iron carbon filler then, and mixture is filled in the stephanoporate steel plate and makes.
The application method of present embodiment device in purification of heavy metal waste water, particular content is as follows:
1. the heavy metal wastewater thereby of present embodiment processing is the heavy metal wastewater thereby that contains chromium, and chromium content is 58mg/L;
2. after alternating expression places ramp type bed of packings body in multistage sloping plate formula electrofiltration bed, check that electrofiltration bed intake-outlet and other devices are complete, open water inlet valve and outlet valve, close back flushing pipeline valve, heavy metal wastewater thereby enters the electrofiltration bed from wastewater disposal basin, and PH is 4 in the electrofiltration bed, and temperature is a normal temperature, waste water is 30min in the residence time of electrofiltration bed, and water outlet is flowed out from water outlet by overflow weir and also carried out follow-up advanced treatment on demand;
3. the operation of multistage sloping plate formula electrofiltration bed system is after 60 days, close water inlet valve and outlet valve, open back flushing pipeline valve, be that 1% sulphuric acid soln carries out back flushing to it and handles from water outlet implantation quality percentage concentration, the external making alive mode of ramp type bed of packings is anode/anode, treatment time is 70min, and water outlet is carried out follow-up heavy metal purification process after resting on the heavy metal receiving tank; Chromium content is 0.24mg/L in this device processing back water outlet.
Embodiment 5:Present embodiment multistage sloping plate formula electrofiltration bed structure is with embodiment 1, difference is that electrofiltration bed main body is for circular, ramp type bed of packings body is that alternating expression distributes in the distribution mode of electrofiltration bed main body, the ramp type bed of packings body that alternating expression distributes is that " Z " font of 1 ° is distributed in the electrofiltration bed with the angle of inclination, ramp type bed of packings body is connected employing anode/anode form with electrode, promptly every layer of ramp type bed of packings body all links to each other with positive electrode.
The application method of this device in purification of heavy metal waste water is with embodiment 1, and difference is to handle the heavy metal wastewater thereby that contains chromium, and chromium content is 65mg/L, and chromium content is 0.31mg/L in the processing back water outlet.
Embodiment 6:Present embodiment multistage sloping plate formula electrofiltration bed structure is with embodiment 2, difference is that electrofiltration bed main body is for circular, ramp type bed of packings body is that sequential distributes in the distribution mode of electrofiltration bed main body, the ramp type bed of packings body that sequential distributes is that 45 ° parallel mode is distributed in the electrofiltration bed main body with the angle of inclination, ramp type bed of packings body is connected employing cathode/anode form with electrode, promptly every layer of ramp type bed of packings body alternately links to each other with positive electrode with negative electrode.
The application method of this device in purification of heavy metal waste water is with embodiment 2, and difference is to handle arsenical heavy metal wastewater thereby, and arsenic content is 91mg/L, and chromium content is 0.36mg/L in the processing back water outlet.
Claims (5)
1. multistage sloping plate formula electrofiltration bed, it is characterized in that: it comprises overflow weir (1), electrofiltration bed main body (2), water-in (3), back flushing pipeline (4), water outlet (5), water-distributing device (6), heavy metal dope receiving tank (7), overflow weir (1) is arranged on electrofiltration bed main body (2) top, heavy metal dope receiving tank (7) is arranged on electrofiltration bed main body (2) bottom, water-distributing device (6) is arranged between electrofiltration bed main body (2) and the heavy metal dope receiving tank (7), water-in (3) is connected with water-distributing device (6) by pipeline, water outlet (5) is arranged on the electrofiltration bed main body (2), back flushing pipeline (4) inlet is arranged on the water outlet (5), the other end is arranged on the top of electrofiltration bed main body (2), water-in, water outlet and back flushing pipeline are controlled by valve.
2. according to the described multistage sloping plate formula of claim 1 electrofiltration bed, it is characterized in that: electrofiltration bed main body (2) is right cylinder or rectangular parallelepiped.
3. according to the described multistage sloping plate formula of claim 1 electrofiltration bed, it is characterized in that: water-distributing device (6) is the looping network water distributor.
4. according to the described multistage sloping plate formula of claim 1 electrofiltration bed, it is characterized in that: be provided with ramp type bed of packings body (8) in the electrofiltration bed main body (2), ramp type bed of packings body (8) is that alternating expression or sequential distribute in the distribution mode of electrofiltration bed main body, wherein the ramp type bed of packings body that distributes of sequential is that 0～45 ° parallel mode is distributed in the electrofiltration bed main body with the angle of inclination, the ramp type bed of packings body that alternating expression distributes is that " Z " font of 1～30 ° is distributed in the electrofiltration bed with the angle of inclination, and every layer of ramp type bed of packings body all links to each other with electrode.
5. according to the described multistage sloping plate formula of claim 4 electrofiltration bed, it is characterized in that: ramp type bed of packings body (8) is connected in employing negative electrode/negative electrode, cathode/anode, three kinds of forms of anode/anode a kind of with electrode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320037819.6U CN203095678U (en) | 2013-01-24 | 2013-01-24 | Multi-stage inclined plate electric filter bed |
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| CN201320037819.6U CN203095678U (en) | 2013-01-24 | 2013-01-24 | Multi-stage inclined plate electric filter bed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408112A (en) * | 2013-08-01 | 2013-11-27 | 昆明理工大学 | Electrochemical oxidation device |
| CN105016436A (en) * | 2015-07-02 | 2015-11-04 | 中国环境科学研究院 | Method for removing arsenic by iron and carbon through reinforcement with magnetic field |
| CN107601671A (en) * | 2017-11-10 | 2018-01-19 | 东北大学 | The Waste Water Treatment and method of non-aeration deflector type synchronous nitration and denitrification |
-
2013
- 2013-01-24 CN CN201320037819.6U patent/CN203095678U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408112A (en) * | 2013-08-01 | 2013-11-27 | 昆明理工大学 | Electrochemical oxidation device |
| CN103408112B (en) * | 2013-08-01 | 2015-06-03 | 昆明理工大学 | Electrochemical oxidation device |
| CN105016436A (en) * | 2015-07-02 | 2015-11-04 | 中国环境科学研究院 | Method for removing arsenic by iron and carbon through reinforcement with magnetic field |
| CN107601671A (en) * | 2017-11-10 | 2018-01-19 | 东北大学 | The Waste Water Treatment and method of non-aeration deflector type synchronous nitration and denitrification |
| CN107601671B (en) * | 2017-11-10 | 2024-01-26 | 东北大学 | Non-aeration baffling type synchronous nitrification and denitrification wastewater treatment system and method |
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