CN102351342B - Inclined plate electroplate device for removing heavy metal from wastewater and manufacturing method of filter board - Google Patents
Inclined plate electroplate device for removing heavy metal from wastewater and manufacturing method of filter board Download PDFInfo
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- CN102351342B CN102351342B CN 201110189802 CN201110189802A CN102351342B CN 102351342 B CN102351342 B CN 102351342B CN 201110189802 CN201110189802 CN 201110189802 CN 201110189802 A CN201110189802 A CN 201110189802A CN 102351342 B CN102351342 B CN 102351342B
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Abstract
An inclined plate electroplate device for removing heavy metal from wastewater and a manufacturing method of a filter board. The device provided by the invention comprises a water distributing device, an inclined plate reaction device, a flushing device, an effluent gathering device and a sediment gathering device, the main body of the incline plate reaction device is a box-type reactor with the upper portion openmouthed and three filter boards are obliquely disposed inside the reactor; an overflow groove on one side of the upper portion of the reactor is connected with the effluent gathering device; and the bottom of the reactor is provided with the sediment gathering device. The filter board is prepared by steps of: mixing red mud, coal dust, an expanding agent and water, coating the mixture on a netted mud hanging device woven by iron wires, drying and sintering. Wastewater containing toxic heavy metal fully contacts with the filter boards in the device provided by the invention so as to make the heavy metal to react with the filter boards; red mud adsorbed with the heavy metal on the surface layer of the filter boards gathers in the sediment gathering device of the reactor and is together removed. The device provided by the invention is convenient to operate, occupies little space, and can be use to recover the heavy metal in wastewater and solve the reutilization problem of red mud.
Description
Technical field
The present invention relates to the making method of a kind of ramp type heavy metal removal device and filter plate, belong to sewage treatment area, especially the process field of electroplating wastewater.
Background technology
After the 1950's, the population in the world sharp increase, industrial development is rapid.The global water resources situation worsens rapidly, and " water crisis " is on the rise.At present, the annual emissions of China's electroplating wastewater has reached 4,000,000,000 m
3, its contained heavy metal has not only consisted of threat to the diversity of environment protection, species, also has a strong impact on the human physical and mental health.Lead in the sewage can cause that fish, aquatic organism poison; Enter the human body accumulation and can cause the symptoms such as headache, amnesia, memory loss.Excessive copper can cause dermatitis and eczema, and the copper-containing wastewater of high density can cause cutaneous necrosis.Sexavalent chrome also can consist of injury to skin, the respiratory system of human body in the sewage, also can cause bronchogenic carcinoma when serious.Therefore, the processing of electroplating wastewater is extremely urgent.On the other hand, the annual red mud that produces in the whole world is about 5,000 ten thousand tons, and every generation 1t aluminum oxide will produce the red mud by product of 1～1.8t.Alkali in the red mud can cause the soda acid overbalance of human body, even can cause death; The bone tissue of the fluorochemical infringement human body that red mud is contained causes human body bone to be evacuated or distortion; A large amount of sodium things can cause cell dysfunction, function of brain cell obstacle especially, thus cause death.Therefore, how fully and reasonably to utilize red mud to become the focus that people pay close attention to.
The sewage treatment capacity of China does not still catch up with the rapid expansion of water scale, and the auxiliary facility construction such as pipe network, sludge treatment seriously lag behind.On the other hand, the wastewater treatment rate of China compared with developed countries, also exist obvious gap, and the rate of load condensate for the treatment of facility is low, just the water pollution treatment system in widespread use or device processing horizontal remain further to be improved now, treatment effect also is not very perfect, and the level of resources utilization is lower.
At present, electroplating effluent treatment method commonly used comprises biological treatment and method of chemical treatment.Biological treatment has advantages of that cost is low, process control is simple, simple and practical, but the waste water that large flow contains low-concentration heavy metal is difficult to process; Method of chemical treatment has less investment, and advantage easy and simple to handle is large but it takes up an area, and needs the extra chemical substance of adding.
Summary of the invention
For the existing problem of electroplating wastewater processing in the industrial production, the invention provides the making method of a kind of ramp type heavy metal in electroplating wastewater removal device and swash plate thereof.
The present invention be a kind of based on the heavy metal ion in filter plate and the electroplating wastewater by the mode that physical adsorption, chemical precipitation combine with ion-exchange, reach removal of heavy metal ions, and can carry out to filter plate a kind of effective device of back flushing and replacing.
Technical solution of the present invention is as follows:
A kind of ramp type heavy metal in electroplating wastewater removal device comprises water-distributing device, swash plate reaction unit, flushing arrangement, effluent collection device, precipitation collection device.Wherein, described water-distributing device has water collecting basin 1, cloth pond 3, is water distribution board 4 between cloth pond 3 and the swash plate reaction unit 6, and water distribution board 4 bottoms are provided with water distributing pore 5 and are communicated with cloth pond 3 and swash plate reaction unit 6; The main body of described swash plate reaction unit 6 is box reactors of open topped, three groups of tilted-putted filter plates 9 are arranged in the reactor, the two adjacent groups filter plate is mutually vertical, and reactor top one side has overflow groove 11, and the wall of overflow groove is provided with water outlet 12 and connects effluent collection device 13; Box reactor bottom is precipitation collection device 7, with the mud of enrichment from the filter plate surface peeling.
Described inclination of filtering plate direction and horizontal direction angle are 50-60 °, with the entry opposite direction.Because swash plate is take vertical direction as the basis toward left bank, and entry is from left to right, is reverse with the entry direction therefore.This also is an important technology condition that enters waste water realization baffling in the reactor, and the filter plate of inclination has also played guide functions when the waste water that enters is adsorbed;
Described filter plate inserts the draw-in groove 8 be positioned on the reactor wall in two ends about in the of 9, with fixing filter plate.15-20 filter plate that is parallel to each other is one group.
As skeleton, sintering has red mud coal dust sorbent material to described filter plate on it by the netted extension mud device of iron wire establishment.Described extension mud device can be changed.
Described flushing arrangement is the jet pipe 10 that arranges above filter plate; Jet pipe can not wash filter plate 9 comprehensively when device is worked, and guarantees that the high-level efficiency of reaction is carried out, and prevents the reactor passivation.Preferably, each filter plate top is respectively equipped with 1 jet pipe, with convenient every filter plate has been washed.
Pipeline between described water collecting basin 1 and the cloth pond 3 is provided with the peristaltic pump 2 with under meter.By peristaltic pump 2 waste water is flowed from lower to upper.
The preferred cone-shaped body of described precipitation collection device, the bottom is provided with the mud relief outlet that comes off.
During use, electroplating wastewater enters cloth pond 3 from water collecting basin 1 in the effect of peristaltic pump 2, and the water distributing pore 5 through water distribution board 4 belows enters swash plate reaction unit 6.Waste water through tilting filter plate drainage, flows along the inclination of filtering plate direction under the effect of gravitational difference, and deflector type flows and fully contacts with filter plate between three tilting filter plates, so that the sorbent material on the heavy metal ion in the waste water and the filter plate 9 reacts.Treated waste water is connected to effluent collection device 13 by the overflow groove 11 on top through water outlet 12.The mud of filter plate surface peeling is enrichment and unified the removal in the precipitation collection device 7 of reactor bottom.
According to the technical solution of the present invention, the making method of described filter plate is as follows:
(1) red mud and coal dust is broken respectively, cross 100 mesh sieves, by weight, take by weighing 70～80 parts red mud, 10～20 parts of coal dusts and 1-3 part swelling agent evenly mix, and add water 5-10 part furnishing pulpous state;
(2) get on (15～20) cm that soup compound 5～10g that step (1) makes the spreads upon the iron wire establishment equably * netted extension mud of (10～14) cm device, oven dry makes living mud filter plate;
(3) the living mud filter plate that step (2) is made places the retort furnace sintering, and sintering temperature is 300～350 ℃, and the time is 20～30min.
Preferably, the described swelling agent of step (1) is aluminium powder.
Preferably, the netted extension mud device of the described iron wire establishment of step (2) is of a size of 18cm * 12cm.
Ramp type heavy metal in electroplating wastewater removal device of the present invention has following useful effect:
1, heavy metal removal device of the present invention is the sloping plate deposition formula, and filter plate is wherein made required raw material and mainly adopted red mud and coal dust, does not need exotic materials.Have cost of manufacture low, the simple advantage of flow process has really realized low-cost, less energy-consumption in sewage treatment process;
2, enter the filter plate that waste water tilts in the reactor and realize that deflector type flows, the filter plate of inclination has also played guide functions when the waste water that enters is adsorbed; In the treating processes of waste water, physical adsorption, chemical precipitation and ion-exchange method acting in conjunction, fast and convenient and thoroughly effectively dispose of sewage in heavy metal ion;
3, apparatus of the present invention are accompanied with the jet pipe that can be used for washing, can be at the device time flushing sloping plate unit of working, and the red mud coal dust sorbent material after the surface adsorption is dropped, form new surface.In addition, red mud coal dust sorbent material filter plate also can be changed, and has not only prolonged the work-ing life of this device, and has improved the treatment effect of sewage.
4, apparatus of the present invention for the processing of electroplating wastewater provide a kind of effectively, the detoxification device of environmental protection, promoted industrialized production.
New-type swash plate heavy metal detoxification device of the present invention not only adopts the industrial by-products red mud as raw material, solved the problem of outlet of red mud, and it is lower to have rate of load condensate, treatment effect is more thorough, cost of manufacture is well below other sewage disposal devices, the advantage that resource utilization is high.
Description of drawings
Fig. 1 is a kind of ramp type heavy metal removal device schematic diagram;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the filter-plate structure schematic diagram.
Wherein, 1. captation, 2. peristaltic pump, 3. cloth pond, 4. water distribution board, 5. water distributing pore, 6. swash plate reaction unit, 7. precipitation collection device, 8. draw-in groove, 9. filter plate, 10. jet pipe, 11. overflow grooves, 12. posticums, 13. effluent collection device.
Embodiment
The present invention is further elaborated below in conjunction with drawings and Examples, but protection scope of the present invention is not limited to this.
Embodiment 1:
A kind of ramp type heavy metal in electroplating wastewater removal device, structure comprise water-distributing device, swash plate reaction unit 6, flushing arrangement 10 as shown in Figure 1, effluent collection device 13 and precipitation collection device 7.Described water-distributing device mainly is made of water collecting basin 1 and cloth pond 3, and the pipeline between described water collecting basin 1 and the cloth pond 3 is provided with the peristaltic pump 2 with under meter, is separated by water distribution board 4 between cloth pond 3 and the swash plate reaction unit 6; The main body of described swash plate reaction unit 6 is box reactors of open topped, three groups of tilted-putted filter plates 9 are arranged in the reactor, the two adjacent groups filter plate is mutually vertical, and described swash plate reaction unit upper right side is provided with overflow groove 11 and is connected with water outlet and connects effluent collection device 13; Box reactor bottom is provided with precipitation collection device 7, with the mud of enrichment from the filter plate surface peeling.
Described inclination of filtering plate direction and horizontal direction angle are 55 °, with the entry opposite direction; Filter plate up and down two ends inserts the draw-in groove 8 that is positioned on the reactor wall, with fixing filter plate.18 filter plates that are parallel to each other are one group.Described flushing arrangement is the jet pipe 10 that arranges above filter plate.
As skeleton, sintering has red mud coal dust sorbent material to described filter plate on it by the netted extension mud device of iron wire establishment, and making method is as follows:
Red mud and coal dust is broken respectively, cross 100 mesh sieves.By weight, take by weighing 80 parts of red muds, 10 parts of coal dusts evenly mix the furnishing pulpous state with 2 parts of swelling agent aluminium powders and 8 parts of water; Get soup compound 6.0g and be applied in equably with brush on the netted extension mud of the 18cm * 12cm device of iron wire establishment, oven dry makes living red mud filter plate; To give birth to the red mud filter plate places retort furnace to fire; Firing temperature is 330 ℃, and the firing time is 30min.The red mud coal dust filter plate that the method makes reaches more than 98% the clearance of chromyl electroplating wastewater.
During use, electroplating wastewater enters cloth pond 3 from water collecting basin 1 through the effect of peristaltic pump 2, and the water distributing pore 5 of water distribution board 4 belows of flowing through enters swash plate reaction unit 6.Waste water through tilting filter plate drainage, flows along the inclination of filtering plate direction under the effect of gravitational difference, and deflector type flows and fully contacts with filter plate between three tilting filter plates, so that the heavy metal ion in the waste water and filter plate 9 react.Treated waste water is connected to effluent collection device 13 by the overflow groove 11 on top through water outlet 12.Jet pipe can not wash filter plate 9 comprehensively when device is worked, and guarantees that the high-level efficiency of reaction is carried out, and prevents the reactor passivation.The mud of filter plate surface peeling is enrichment and unified the removal in the precipitation collection device 7 of reactor bottom.
Embodiment 2: ramp type heavy metal in electroplating wastewater removal device structure as described in Example 1, difference is that the making method of red mud coal dust filter plate is as follows:
Take by weighing 78 parts of red muds, 12 parts of coal dusts, 3 parts of swelling agent aluminium powders and 7 parts of water furnishing pulpous states; Get soup compound 5.5g soup compound and be applied in uniformly on the wire netting extension mud device with brush, oven dry makes living mud filter plate; To give birth to the mud filter plate places retort furnace to fire; Firing temperature is 310 ℃, and the firing time is 25min.This filter plate reaches more than 95% the clearance of the electroplating wastewater of cupric.
Embodiment 3: ramp type heavy metal in electroplating wastewater removal device structure as described in Example 1, difference is that the making method of red mud coal dust filter plate is as follows:
Take by weighing 73 parts red mud, 15 parts of coal dusts, swelling agent aluminium powder and 10 parts of water furnishing pulpous states of 2 parts; Get soup compound 8.0g and be applied in uniformly on the wire netting extension mud device with brush, oven dry makes living mud filter plate; To give birth to the mud filter plate and place retort furnace to fire, firing temperature is 350 ℃, and the firing time is 20min.This filter plate reaches more than 99% the clearance of the electroplating wastewater that contains zinc.
Claims (1)
1. a ramp type heavy metal in electroplating wastewater removal device comprises water-distributing device, swash plate reaction unit, flushing arrangement, effluent collection device, precipitation collection device; Wherein, described water-distributing device has water collecting basin (1), cloth pond (3), be water distribution board (4) between cloth pond (3) and the swash plate reaction unit (6), water distribution board (4) bottom is provided with water distributing pore (5) and is communicated with cloth pond (3) and swash plate reaction unit (6); The main body of described swash plate reaction unit (6) is the box reactor of open topped, and three groups of tilted-putted filter plates (9) are arranged in the reactor, and the two adjacent groups filter plate is mutually vertical; Reactor top one side has overflow groove (11), and the wall of overflow groove is provided with water outlet (12) and connects effluent collection device (13); Box reactor bottom is precipitation collection device (7), with the mud of enrichment from the filter plate surface peeling.
2, such as claim 1 ramp type heavy metal in electroplating wastewater removal device, it is characterized in that, described inclination of filtering plate direction and horizontal direction angle are 50-60 °, with the entry opposite direction.
3, such as claim 1 ramp type heavy metal in electroplating wastewater removal device, it is characterized in that, described filter plate up and down two ends inserts the draw-in groove (8) that is positioned on the reactor wall.
4, such as claim 1 ramp type heavy metal in electroplating wastewater removal device, it is characterized in that, every group of filter plate has 15-20 filter plate that is parallel to each other.
5, such as claim 1 ramp type heavy metal in electroplating wastewater removal device, it is characterized in that, described flushing arrangement is the jet pipe (10) that arranges above filter plate.
6, such as claim 1 ramp type heavy metal in electroplating wastewater removal device, it is characterized in that, as skeleton, sintering has red mud coal dust sorbent material to described filter plate on it by the netted extension mud device of iron wire establishment.
7, such as claim 1 ramp type heavy metal in electroplating wastewater removal device, it is characterized in that, the pipeline between described water collecting basin and the cloth pond is provided with the peristaltic pump (2) with under meter.
8, the making method of used filter plate in the described ramp type heavy metal in electroplating wastewater of claim 1 removal device, step is as follows:
(1) red mud and coal dust is broken respectively, cross 100 mesh sieves, by weight, take by weighing 70～80 parts red mud, 10～20 parts of coal dusts and 1-3 part swelling agent evenly mix, and add water 5-10 part furnishing pulpous state;
(2) get on (15～20) cm that soup compound 5～10g that step (1) makes the spreads upon the iron wire establishment equably * netted extension mud of (10～14) cm device, oven dry makes living mud filter plate;
(3) the living mud filter plate that step (2) is made places the retort furnace sintering, and sintering temperature is 300～350 ℃, and the time is 20～30min.
9, the making method of filter plate as claimed in claim 8 is characterized in that the described swelling agent of step (1) is aluminium powder.
10, the making method of filter plate as claimed in claim 8 is characterized in that the described iron wire of step (2) is worked out netted extension mud device and is of a size of 18cm * 12cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189802 CN102351342B (en) | 2011-07-07 | 2011-07-07 | Inclined plate electroplate device for removing heavy metal from wastewater and manufacturing method of filter board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110189802 CN102351342B (en) | 2011-07-07 | 2011-07-07 | Inclined plate electroplate device for removing heavy metal from wastewater and manufacturing method of filter board |
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| CN102351342A CN102351342A (en) | 2012-02-15 |
| CN102351342B true CN102351342B (en) | 2013-01-02 |
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| CN 201110189802 Expired - Fee Related CN102351342B (en) | 2011-07-07 | 2011-07-07 | Inclined plate electroplate device for removing heavy metal from wastewater and manufacturing method of filter board |
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| CN114100205A (en) * | 2021-11-25 | 2022-03-01 | 北控水务(中国)投资有限公司 | Sedimentation tank and sewage purification process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038257A (en) * | 1988-05-31 | 1989-12-27 | 牡丹江市环境科学研究所 | Small Sewage Treatment Equipment and technology thereof |
| CN202107554U (en) * | 2011-07-07 | 2012-01-11 | 山东大学 | Inclined plate type device for removing heavy metal in electroplating wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20110049624A (en) * | 2010-03-12 | 2011-05-12 | 주식회사 지오웍스 | Facility clearing wastewater by eco-friendly clarifier |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038257A (en) * | 1988-05-31 | 1989-12-27 | 牡丹江市环境科学研究所 | Small Sewage Treatment Equipment and technology thereof |
| CN202107554U (en) * | 2011-07-07 | 2012-01-11 | 山东大学 | Inclined plate type device for removing heavy metal in electroplating wastewater |
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