CN202265478U - Reactor for treating small amount of subsequent heavy metals in metallurgical wastewater - Google Patents
Reactor for treating small amount of subsequent heavy metals in metallurgical wastewater Download PDFInfo
- Publication number
- CN202265478U CN202265478U CN2011201324847U CN201120132484U CN202265478U CN 202265478 U CN202265478 U CN 202265478U CN 2011201324847 U CN2011201324847 U CN 2011201324847U CN 201120132484 U CN201120132484 U CN 201120132484U CN 202265478 U CN202265478 U CN 202265478U
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- small amount
- wastewater
- iron carbon
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Abstract
The utility model relates to a wastewater treatment device and particularly discloses a reactor for treating a small amount of subsequent heavy metals in metallurgical wastewater subjected to alkali precipitation and neutralization. The reactor comprises a buffer pool, an iron carbon pond, an anaerobic reactor, a heavy metal silt settling pit and an exhaust gas scrubber. The wastewater is sequentially treated by the buffer pool, the iron carbon pond and the anaerobic reactor and exhaust gas generated in the process of treating the wastewater is scrubbed by the exhaust gas scrubber and is discharged. The reactor disclosed by the utility model can be widely used for the stabilizing treatment of various metallurgical subsequent wastewater.
Description
Affiliated technical field
The present invention relates to a kind of reactor drum of wastewater treatment, be specifically related to follow-up a small amount of heavy metal treatment reactor of smelting wastewater.
Background technology
In human social development, mineral smelting, industries such as plating play important effect.In smelting process, inevitably produce a large amount of waste water, generally contain each heavy metal species and objectionable impurities in these waste water, if can not effectively handle, can pollute and ecology is damaged environment.A few years ago, repeatedly heavy metal contamination incident just occurred in China, and had a strong impact on food safety, fishery products safety and human body are healthy.
The treatment process of smelting wastewater mainly contains membrane separation process, ion exchange method, alkali precipitation or the sulphur precipitator method at present.Because general salinity is very high in the smelting wastewater, membrane separation process running cost is too high; And all kinds of ionic exist in the waste water, make ion exchange resin be easy to adsorb saturated; The sulphur precipitator method can cause sulfide in water to pollute and airborne hydrogen sulfide contamination; Because pH is different for the best of various heavy metal ion deposition; In actually operating, pH control also has certain error in addition, so alkaline precipitation is handled the very difficult stably reaching standard that guarantees of smelting wastewater; In addition, the existence of complex compound has strengthened the difficulty of heavy metal precipitation in the treating processes smelting wastewater.
The follow-up a small amount of heavy metal treatment reactor that guarantees the smelting wastewater of waste water stably reaching standard is the utility model equipment key problem to be solved.
The utility model content
For solve existing smelting wastewater handle in heavy metal can't the existing above-mentioned defective of stably reaching standard, the primary and foremost purpose of the utility model provides a kind of reactor drum of wastewater treatment.Above-mentioned reactor drum can be used for follow-up a small amount of heavy metal of smelting wastewater to be handled.
The purpose of the utility model realizes through following technical scheme:
The utility model also provides a kind of follow-up a small amount of heavy metal treatment reactor of smelting wastewater; Comprise electrical control system; Treatment unit for waste water, heavy metal mud sinking chamber and off gas treatment unit, described treatment unit for waste water comprise Buffer Pool, iron carbon pond and the anaerobic reactor that connects successively according to front and back.Said iron carbon pond and anaerobic reactor are up-down structure, and said heavy metal mud sinking chamber is arranged on Buffer Pool and mid-way, iron carbon pond, and said heavy metal mud sinking chamber also is provided with shore pipe, and said shore pipe is connected with extraneous.Be provided with water distributor between said iron carbon pond and the anaerobic reactor, the outlet of the gas that described anaerobic pond produces is arranged on the off gas treatment unit.Said off gas treatment unit is provided with off gas scrubber.
It is following to utilize the follow-up a small amount of heavy metal treatment reactor of the utility model smelting wastewater to handle the ultimate principle of waste water:
Through the smelting wastewater of alkali precipitation, arrive slightly acidic, the follow-up a small amount of heavy metal treatment reactor that gets into the utility model smelting wastewater then to pH regulator.Get into the waste water elder generation process iron carbon pond of reactor drum, interior decomposition complex compound and replacing section heavy metal, the wastewater pH of process reaction is near neutrality.The waste water in iron carbon pond of flowing through distributes to waste water through water distributor; Get into then and utilize sulfate radical reduction bacterium and methanogen in the anaerobic reactor, organism is decomposed, through the katalysis of enzyme; Be reduced into simple substance selenium to selenate and selenite etc. in the waste water; After the persulfate reduction, the sulfate radical partial reduction in the waste water becomes a small amount of heavy metal in negative sulfidion and the waste water to generate sulfide precipitation, in addition; Bacterium is the absorbed portion heavy metal also, and the heavy metals exceeding standard incident of having avoided dosing control to be forbidden to cause takes place.The heavy metal precipitation thing that generates is deposition in the heavy metal precipitation chamber, discharges through row's heavy metal mud pipe then.At the gases such as hydrogen sulfide that Anaerobic processes generate, leading to into through the equipment vapor pipe, the unitary off gas scrubber of off gas treatment carries out the sulfide recovery and purifies.
As preferentially, said reactor drum is flow lifting type to carry out, and this position is provided with and more helps treatment unit for waste water waste water reaction full contact and the sludge settling of being convenient to the heavy metal mud sinking chamber.
As preferably, iron carbon bed iron carbon mass ratio is 3: 1.
As preferably, the anaerobic reaction actuator temperature is controlled at about 50 ℃, through exothermic heat of reaction heat supply voluntarily.
The utility model device is compared with existing installation has following beneficial effect:
(1) the utility model makes full use of sulfate radical reduction bacterium, makes heavy metal form deposition or reduction and is eliminated.
(2) reactor drum of the utility model is realized heat supply voluntarily, saves energy, and can accelerate speed of reaction, saves facility investment.
(3) in the anaerobic pond of the utility model the heavy metal mud sinking chamber is set, can be used for reclaiming heavy metal.
(4) the utility model reclaims the hydrogen sulfate that Anaerobic processes produce, and is used for precipitation of heavy metals again.
Description of drawings
Fig. 1 respectively handles unitary front layout n. for follow-up a small amount of heavy metal reactor drum of the smelting wastewater of the utility model.
Fig. 2 is follow-up a small amount of heavy metal structure of reactor synoptic diagram of the smelting wastewater of the utility model.
Wherein main Reference numeral is following:
1-equipment water inlet pipe
The 2-Buffer Pool
3-iron carbon pond
The 4-water distributor
The 5-anaerobic reactor
6-heavy metal mud sinking chamber
The 7-overflow weir
8-equipment vapor pipe
The 9-vacuum breaker
The 10-off gas scrubber
11-purified gas vapor pipe
The 12-electrical control system
13-equipment water shoot
The 14-water distributing pore
15-iron carbon
16-heavy metal shore pipe
The 17-appliance vent
Embodiment
Be the utility model preferred embodiment below, help further to understand the utility model, but the embodiment of the utility model is not limited thereto.
Fig. 1 respectively handles unitary front layout n. for follow-up a small amount of heavy metal reactor drum of the smelting wastewater of the utility model.As shown in the figure, the equipment bottom side is provided with equipment water inlet pipe 1, and equipment water inlet pipe 1 is connected with Buffer Pool 2; The top of Buffer Pool 2 is iron carbon ponds 3, on iron carbon pond 3, water distributor 4 is set, and the top of water distributor 4 is anaerobic reactors 5; The bottom centre of anaerobic reactor 5 is provided with heavy metal mud sinking chamber 6, above anaerobic reactor 5, overflow weir 7 is set all around, makes waste water evenly toward overflow all around; Anaerobic reaction is even, in the arranged outside of overflow weir 7 equipment water shoot 13, the waste water that the row's of being used for reaction finishes.Be provided with equipment vapor pipe 8 on the cover plate of anaerobic reactor 5, enter into off gas scrubber 10 through vacuum breaker 9, off gas scrubber 10 is installed in the upper left side of anaerobic reactor 5, and waste gas is discharged by cleaner vapor pipe 11 after handling through off gas scrubber 10.Electrical control system 12 is placed on the right side of anaerobic reactor 5.
As shown in Figure 2, follow-up a small amount of heavy metal structure of reactor synoptic diagram of the smelting wastewater of the utility model gets into reactor drum through the smelting wastewater after alkali precipitation and the acid neutralization by equipment water inlet pipe 1; In equipment Buffer Pool 2, mix and homogeneous, evenly pass iron carbon pond 3 then, in iron carbon pond 3, be filled with iron carbon 15; The reaction of generation galvanic cell; Organism is decomposed into small-molecule substance, and most of complex molecules is destroyed, heavy metal ion can't stable existence in solution.Above iron carbon pond 3, be provided with water distributor 4; Qi-emitting hole 14 in the water distributor 4 make waste water can be in anaerobic reactor 5 uniform distribution; In anaerobic reactor 5, utilize sulfate radical reduction bacterium reduction part metals oxide compound; Generate metal simple-substance or sulfide precipitation, throw out utilizes gravitational settling to discharge through heavy metal shore pipe 16 then in heavy metal mud sinking chamber 6.Around the anaerobic reactor upside, be provided with overflow weir 7, through the supernatant behind the anaerobic reaction through overflow weir 7 evenly to four kinds of overflows, overflow weir 7 arranged outside the equipment water shoot, be used to drain reacted wastewater.The methane that Anaerobic processes produce, gases such as hydrogen sulfide then get into off gas scrubber 10 through appliance vent 17 and equipment vapor pipe 8, and hydrogen sulfide is absorbed, and the gas of purification effluxes or uses as burning gas through purifying exhaust gas pipe 11.
The foregoing description is the utility model preferred implementation; But embodiment of the present invention is not restricted to the described embodiments; Other are any not to deviate from the change done under spirit of the present invention and the principle condition, modification, is substituting, combination, simplifying; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (5)
1. follow-up a small amount of heavy metal treatment reactor of smelting wastewater; Comprise electrical control system; Treatment unit for waste water, heavy metal mud sinking chamber and off gas treatment unit is characterized in that: treatment unit for waste water comprises Buffer Pool, iron carbon pond and the anaerobic reactor that successively connects successively.
2. follow-up a small amount of heavy metal treatment reactor of smelting wastewater according to claim 1, it is characterized in that: described treatment unit for waste water Buffer Pool, iron carbon pond and anaerobic reactor are up-down structure.
3. follow-up a small amount of heavy metal treatment reactor of smelting wastewater according to claim 1, it is characterized in that: described heavy metal mud sinking chamber is arranged on Buffer Pool and mid-way, iron carbon pond, is provided with shore pipe and the external world joins.
4. follow-up a small amount of heavy metal treatment reactor of smelting wastewater according to claim 1, it is characterized in that: the off gas treatment unit is an off gas scrubber.
5. according to follow-up a small amount of heavy metal treatment reactor of each described smelting wastewater in the claim 1～2, it is characterized in that: be provided with water distributor between said iron carbon pond and the anaerobic reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201324847U CN202265478U (en) | 2011-04-22 | 2011-04-22 | Reactor for treating small amount of subsequent heavy metals in metallurgical wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201324847U CN202265478U (en) | 2011-04-22 | 2011-04-22 | Reactor for treating small amount of subsequent heavy metals in metallurgical wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202265478U true CN202265478U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201324847U Expired - Fee Related CN202265478U (en) | 2011-04-22 | 2011-04-22 | Reactor for treating small amount of subsequent heavy metals in metallurgical wastewater |
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| Country | Link |
|---|---|
| CN (1) | CN202265478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265141A (en) * | 2013-04-22 | 2013-08-28 | 安徽工程大学 | Acidic mine waste water treatment system and use method thereof |
| CN103265142A (en) * | 2013-04-22 | 2013-08-28 | 安徽工程大学 | Method for treating acidic mine waste water |
-
2011
- 2011-04-22 CN CN2011201324847U patent/CN202265478U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265141A (en) * | 2013-04-22 | 2013-08-28 | 安徽工程大学 | Acidic mine waste water treatment system and use method thereof |
| CN103265142A (en) * | 2013-04-22 | 2013-08-28 | 安徽工程大学 | Method for treating acidic mine waste water |
| CN103265141B (en) * | 2013-04-22 | 2015-03-04 | 安徽工程大学 | Acidic mine waste water treatment system and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20130422 |