CN203653319U - Arsenic wastewater treatment device - Google Patents
Arsenic wastewater treatment device Download PDFInfo
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- CN203653319U CN203653319U CN201320819357.3U CN201320819357U CN203653319U CN 203653319 U CN203653319 U CN 203653319U CN 201320819357 U CN201320819357 U CN 201320819357U CN 203653319 U CN203653319 U CN 203653319U
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Abstract
The utility model provides an arsenic wastewater treatment device. The arsenic wastewater treatment device comprises two reaction containers which are identical in structure, wherein the front ends of the two reaction containers are provided with pipelines which are respectively connected to the rear parts of a wastewater storage tank and a hydrogen sulfide solution storage tank in parallel, each reaction container is provided with a ventilation pipe with a blocking valve, the ventilation pipe is communicated with the outside, the sides of the reaction containers are also provided with a group of circulating loops, flowmeters and circulating pumps are arranged on the circulating loops, the rear parts of the circulating pumps are connected to a branch pipe which serves as a discharging pipe, pipe sections, which are extended out of the reaction containers, of the circulating loops are connected to venturi pipes, and one sides of the venturi pipes are connected to a connecting pipe of the hydrogen sulfide solution storage tank connected to the reaction containers by virtue of a side pipe with the blocking valve. The arsenic wastewater treatment device provided by the utility model is less in investment, short in technological process, low in chemical consumption, small in floor area, free of secondary pollution and suitable for popularization and application.
Description
Technical field
The utility model relates to environment-friendly engineering technical field of waste water processing, is specially a kind for the treatment of unit of arsenic-containing waste water.
Background technology
In chemical field, arsenic (Arsenic) is a well-known chemical element, symbol of element As, and ordination number 33, it is a kind of with the famous metalloid of its toxicity, and has multiple allotropic substance.The compound of arsenic is a kind of protoplasma poisonous substance with metalloid characteristic, has biological effect widely, is now defined as first kind carcinogens by the Center for Disease Control and the international research institution that gives protection against cancer.
In recent years, along with the fast development of the industries such as mining and metallurgy, pottery, leather, agricultural chemicals, in groundwater environment, the pollution of arsenic is day by day serious.Endemic arsenic poisoning has caused worldwide extensive concern.For this reason, comprise China, the U.S., West Europe, Japan etc. at one of interior multiple national pollutents using the arsenic in water as preferential control, in discharge of wastewater and drinking water standard, the concentration of arsenic is made to strictly regulation, along with constantly mentioning that people require quality of life and environmental protection standard, this brings new challenge to traditional waste water dearsenification and Removal of Arsenic in Drinking Water technology.
The existing smelting that is mainly derived from the heavy metals such as copper, lead, zinc, gold and silver, cobalt, nickel containing arsenic heavy metal wastewater thereby, acid water etc.At present, process and mainly in the treatment process of this type of waste water adopt a kind of conventional sulfuration method to carry out wastewater treatment, and this sulfuration method can have with irritating smell and poisonous hydrogen sulfide (odorlessness but still harmful under finite concentration) in treating processes in generation, and being accompanied by the generation of hydrogen sulfide, the utilization ratio of sodium sulphite also and then declines.How on existing arsenic-containing waste water treatment technology basis, by improving technique or improving treatment facility, make that treatment process becomes more simple, efficient, the cost that puts into operation is low and environmental protection, this becomes this area technical problem urgently to be resolved hurrily.
Utility model content
The technical problem that the utility model solves is to provide a kind for the treatment of unit of arsenic-containing waste water, this device overcome wastewater toxicity neutralization reaction efficiency in traditional sulfuration process low, easily produce the defect that toxic gas, input and running cost are high, and can effectively remove the arsenic in waste water, and can remove part heavy metal ion simultaneously, after the processing of device, water outlet can reach sewage drainage standard.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind for the treatment of unit of arsenic-containing waste water, comprise two reaction vessels that structure is identical, these two reaction vessel front ends are provided with pipeline and are connected in parallel on respectively wastewater storage tank and hydrogen sulfide solution storage tank rear portion, on described each reaction vessel, be provided with the scavenge trunk of the band blocking-up valve being in communication with the outside, and be also provided with one group of circulation loop reaction vessel side is other, on described circulation loop, be provided with under meter and recycle pump, recycle pump rear portion is connected with an arm as discharge nozzle, and stretch out at this circulation loop on the pipeline section of reaction vessel and be connected with Venturi tube, described Venturi tube one side is connected with the hydrogen sulfide solution storage tank pipe connecting that is connected into reaction vessel by the side pipe of a band blocking-up valve.
In the utility model, described wastewater storage tank and hydrogen sulfide solution storage tank are connected on the main line of pipe connecting of two reaction vessels and are connected with pumping installation, and are provided with blocking-up valve on the main line of these pipe connectings and each branch road.
In the utility model, the lid top of described two reaction vessels is provided with tensimeter, and manometric measuring junction stretches in reaction vessel to measure the pressure in reaction vessel.
In the utility model, in described two reaction vessels, be provided with PH meter and oxidation-reduction potentiometer in order to monitor the reaction environment of two reaction vessels.
In the utility model, on described two reaction vessels, be provided with hydrogen sulfide warning howler, in order to carry out early warning in the time that concentration of hydrogen sulfide content exceedes threshold value.
Advantage of the present utility model and beneficial effect are: the utility model, as a kind for the treatment of unit of arsenic-containing waste water, has solved the problems such as the discharge existing in traditional technology is not up to standard, and sodium sulphite utilization ratio is low, generation secondary environmental pollution, and it is mainly reflected in:
(1), the mode of two reactive tanks use, solved and in traditional sulfuration method, added the problem that produces toxic gas hydrogen sulfide after sodium sulphite;
(2), add Venturi tube, make produce hydrogen sulfide participate in reaction directly, greatly improved the service efficiency of sodium sulphite and saved running cost;
(3), do not have hydrogen sulfide in whole process and overflow, therefore corresponding hydrogen sulfide collection device can be cancelled, greatly reduce input cost;
(4), treatment effect is obvious, in the proper situation of condition control, the arsenic in installing water after treatment is lower than state sewage emission standard 0.5mg/L.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model preferred embodiment.
Embodiment
For technique means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to the preferred embodiment of the treatment unit of a kind of arsenic-containing waste water of Fig. 1, in the present embodiment, using two retort as reaction vessel, by two retort respectively label be the first retort 1 and the second retort 2, the mode of connection of the first retort 1 and the second retort 2 and structure all similar, its front end is provided with respectively pipeline and is connected in parallel on wastewater storage tank 3 and hydrogen sulfide solution storage tank 4 rear portions, and is provided with pH meter 5, oxidation-reduction potentiometer 6, tensimeter 7, hydrogen sulfide warning howler 8 in the first retort 1 and the second retort 2.
Distinguish one group of circulation loop and be also provided with by the side of the first retort 1 and the second retort 2, on described circulation loop, be provided with under meter 9 and recycle pump, recycle pump rear portion is connected with an arm as discharge nozzle, and stretch out at this circulation loop on the pipeline section of reaction vessel and be connected with Venturi tube 10, described Venturi tube 10 1 sides are connected with the hydrogen sulfide solution storage tank pipe connecting that is connected into reaction vessel by the side pipe of a band blocking-up valve.
In the present embodiment, in conjunction with the structure iron of the present embodiment of Fig. 1, the blocking-up valve on each pipeline is numbered, its principle of work and process can be expressed as:
Arsenic-containing waste water pH in wastewater storage tank 3 is adjusted to 1 left and right, first open the first retort 1, valve-off D opens valve B and valve C, open valve K and air communication, the pumping installation that utilization is connected to wastewater storage tank 3 rear portions is pumped to arsenic-containing waste water in the first retort 1, valve-off B and valve C.Then, valve-off G and valve F, open valve A, valve E and valve I, required sodium sulfide solution is evacuated to the first retort 1 by the pumping installation of opening connection hydrogen sulfide solution storage tank 4, valve-off E, valve K, open valve G, the recycle pump on the circulation loop of unlatching the first retort 1, starts reaction.
The first retort 1 starts after reaction, the second retort 2 starts the arsenic-containing waste water of the presetting pH of suction from wastewater storage tank 3, open valve B, valve D, valve L, utilization is connected to the pumping installation at wastewater storage tank 3 rear portions by the arsenic-containing waste water suction of presetting pH the second retort 2, after arriving scale, turn off pumping installation, valve-off B, valve D, valve L.
After the first retort 1 reacts completely, open valve M discharging and deliver to next workshop section.Valve-off A, valve G, open valve E, valve I, the second retort 2 is opened valve F, H, valve-off J, open the recycle pump on the circulation loop of the second retort 2, the hydrogen sulfide in the first retort 1 now reacts with the arsenic-containing waste water in the second retort 2.
After in the first retort 1, hydrogen sulfide runs out of, valve-off E, valve H, open valve A, valve J, and utilize the pumping installation in associated pipe that sodium sulfide solution is evacuated to the second retort 2, now the first retort 1 can re-inject the arsenic-containing waste water of presetting pH in wastewater storage tank 3, after the second retort 2 is handled, the hydrogen sulfide in the second retort 2 is reacted with the arsenic-containing waste water of 1 li of the first retort by pipeline, so circulation, is working process.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the treatment unit of an arsenic-containing waste water, comprise two reaction vessels that structure is identical, these two reaction vessel front ends are provided with pipeline and are connected in parallel on respectively wastewater storage tank and hydrogen sulfide solution storage tank rear portion, it is characterized in that, on described each reaction vessel, be provided with the scavenge trunk of the band blocking-up valve being in communication with the outside, and be also provided with one group of circulation loop reaction vessel side is other, on described circulation loop, be provided with under meter and recycle pump, recycle pump rear portion is connected with an arm as discharge nozzle, and stretch out at this circulation loop on the pipeline section of reaction vessel and be connected with Venturi tube, described Venturi tube one side is connected with the hydrogen sulfide solution storage tank pipe connecting that is connected into reaction vessel by the side pipe of a band blocking-up valve.
2. the treatment unit of a kind of arsenic-containing waste water according to claim 1, it is characterized in that, described wastewater storage tank and hydrogen sulfide solution storage tank are connected on the main line of pipe connecting of two reaction vessels and are connected with pumping installation, and are provided with blocking-up valve on the main line of these pipe connectings and each branch road.
3. the treatment unit of a kind of arsenic-containing waste water according to claim 1, is characterized in that, the lid top of described two reaction vessels is provided with tensimeter.
4. the treatment unit of a kind of arsenic-containing waste water according to claim 1, is characterized in that, is provided with PH meter and oxidation-reduction potentiometer in described two reaction vessels.
5. the treatment unit of a kind of arsenic-containing waste water according to claim 1, is characterized in that, on described two reaction vessels, is provided with hydrogen sulfide warning howler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819357.3U CN203653319U (en) | 2013-12-13 | 2013-12-13 | Arsenic wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819357.3U CN203653319U (en) | 2013-12-13 | 2013-12-13 | Arsenic wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203653319U true CN203653319U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320819357.3U Expired - Fee Related CN203653319U (en) | 2013-12-13 | 2013-12-13 | Arsenic wastewater treatment device |
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| CN (1) | CN203653319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776024A (en) * | 2019-10-28 | 2020-02-11 | 中国石油化工股份有限公司 | Safe energy-concerving and environment-protective oil recovery sewage treatment charge device |
-
2013
- 2013-12-13 CN CN201320819357.3U patent/CN203653319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776024A (en) * | 2019-10-28 | 2020-02-11 | 中国石油化工股份有限公司 | Safe energy-concerving and environment-protective oil recovery sewage treatment charge device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20171213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |