CN203419801U - Integrated arsenic removal device for drinking water - Google Patents
Integrated arsenic removal device for drinking water Download PDFInfo
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- CN203419801U CN203419801U CN201320543947.8U CN201320543947U CN203419801U CN 203419801 U CN203419801 U CN 203419801U CN 201320543947 U CN201320543947 U CN 201320543947U CN 203419801 U CN203419801 U CN 203419801U
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Abstract
The utility model discloses an integrated arsenic removal device for drinking water and belongs to the field of deep arsenic removal of drinking water. The integrated arsenic removal device comprises a water intake control system, a reactor and an ultrafiltration membrane filter system, and also a water yielding control system and an aerated oxidation system, wherein the water intake control system comprises a water lift pump, a first flowmeter, a constant-level water tank and a first valve; the reactor further comprises a stirrer; the ultrafiltration membrane filter system is located at the middle lower part of the reactor; the water yielding control system comprises a vacuum meter, a third flowmeter, a third valve, a water suction pump, a fourth valve, a fifth valve, a buffer pipe and a vacuum pump; the aerated oxidation system comprises an aerator pipe, a second flowmeter, a second valve and an air pump. The integrated arsenic removal device for drinking water has the characteristics that oxidization, adsorption and membrane separation are organically combined and completed in the same reaction tank, and a plurality of flowmeters and valves are additionally arranged so that the device is easier and more visual to operate, so that the integrated arsenic removal device has the advantages of low fixed investment and low operating cost.
Description
Technical field
The utility model relates to drinking water deep arsenic removal field, more particularly, relates to a kind of integrated arsenic removing apparatus of tap water that adopts ultra-filtration membrane, realizes being subject to the purification of arsenic polluted drinking water.
Background technology
It is a global problem that water body arsenic pollutes.Based on geochemistry and sudden water pollution accident, China is subject to the population that tap water arsenic pollutes and accounts for 30% of the world according to statistics.In view of the significant damage of arsenic to HUMAN HEALTH, the Center for Disease Control and international cancer research institution are all decided to be first kind carcinogenic substance.Many countries and the World Health Organization have all formulated strict standard to the content of Arsenic in Drinking Water.WHO, Japan, Germany, the U.S. and China successively adjust to 0.01mg/L by the sanitary standard for drinking water of arsenic by 0.05 original mg/L.EPA also plans from now on this control criterion to be upgraded to 0.002mg/L.Therefore, all one of major tasks using exploiting economy, efficient, practical drinking water deep arsenic removal technology as environment protection and safety and Health work of countries in the world.Arsenic in tap water mainly exists with the form of inorganic arsenic hydrochlorate (pentavalent arsenic) and arsenite (trivalent arsenic), and wherein trivalent arsenic toxicity is large, difficult removes, and is the most important thing of exploitation water depth arsenic removal technology.Along with the development of water quality inspection technique, as giardia lamblia and Cryptosporidium two worm problems, water flea, red worm problem, biologically stable problem of water etc., also becomes one of drinking-water quality safety control focal point.
The people such as Yan Qun point out to consider from the fundamental realities of the country of China, the small-scale distributing family type arsenic removing apparatus that the Coagulation and Adsorption of take is master takes advantage, the coagulating agent that focuses on finding Cheap highly effective of research, the sorbing material of the economic environmental protection of development of new, and the harmlessness disposing technology of research and development dreg containing arsenic; In the long run consider, ion exchange method and membrane technique effect of removing arsenic are remarkable, have good utilization prospect, research focus on seeking low cost, less energy-consumption and stable technique; Angle from environment protection; biological arsenic removal technology high-efficiency environment friendly; processing costs is low, most with prospects, and the emphasis of research is to find arsenic super enriching plant; solve the subsequent disposal technology of super enriching plant; and the culture cycle of shortening microbial strains etc. (Yan Qun, Yu Yang, Zhou Nana. the progress of Arsenic in Drinking Water treatment technology [J]. non-ferrous metal scientific and engineering; 2012, (3) .).
But existing arsenic removing apparatus for drinking water exists cost high, not easy to operate, be not easy to the problem safeguarded, need a kind of easy to operate, the arsenic removing apparatus that running cost is low.
Summary of the invention
1. the technical problem that will solve
For existing arsenic removing apparatus for drinking water, exist cost high, not easy to operate, be not easy to the problem of safeguarding, the utility model provides a kind of tap water integrated arsenic removing apparatus, and integral body belongs to distributing arsenic removing apparatus on a small scale, can use the sorbing material of Cheap highly effective, combine with membrane technique, low cost, less energy-consumption and stable, no matter, from national conditions, cost or environmental angle, all there is very much development prospect.
2. technical scheme
In order to overcome the above problems, the technical solution adopted in the utility model is as follows:
The integrated arsenic removing apparatus of a kind of tap water, comprise water inflow control system, reactor and ultrafiltration membrance filter system, also comprise outlet controlling system and aeration oxidation system, described water inflow control system comprises lift pump, first flow meter, permanent position water tank and the first valve; One end of described lift pump is connected with water inlet pipe, and the other end is connected with permanent position water tank by pipeline; Described first flow meter is on the pipeline between lift pump and permanent position water tank; Described permanent position water tank is connected in reactor by pipeline; The first described valve is on the pipeline between permanent position water tank and reactor; In described reactor, also comprise agitator; Described ultrafiltration membrance filter system is positioned at the middle and lower part of reactor; Described outlet controlling system comprises vacuum meter, the 3rd under meter, the 3rd valve, lift pump, the 4th valve, the 5th valve, buffer tube and vacuum pump; Described ultrafiltration membrance filter system is connected with lift pump with the 3rd under meter, the 3rd valve successively by pipeline; Described vacuum meter is connected on the pipeline between ultrafiltration membrance filter system and the 3rd under meter; On pipeline between the 3rd described under meter and the 3rd valve, having ，Gai branch of branch is connected with vacuum pump with the 4th valve, buffer tube, the 5th valve successively; Described aeration oxidation system comprises aeration tube, the second under meter, the second valve and pneumatic pump; Described aeration tube is positioned at the bottom of reactor; Between described aeration tube, the second under meter, the second valve and pneumatic pump, by pipeline, connect successively.
Preferably, the hyperfiltration membrane assembly in described ultrafiltration membrance filter system is polyvinylidene fluoride (PVDF) ultrafiltration membrane; Kit form is flat.
Preferably, the hyperfiltration membrane assembly in described ultrafiltration membrance filter system is immersion external pressure hyperfiltration membrane assembly.Filter membrane material: polyvinylidene difluoride (PVDF) PVDF.
Preferably, in described permanent position water tank, also comprise floodometer.Floodometer is used for measuring the water level of permanent position water tank, to facilitate follow-up operation.
3. beneficial effect
The device that adopts the utility model to provide, compares with existing known technology, has following unusual effect:
(1) the utility model organically combines the oxidation in drinking water treatment technique, absorption and film separation unit dexterously, oxidation, absorption and membrane sepn are placed in same reactor and are completed, construction costs and working cost have significantly been reduced, significantly reduced floor space, be easy to maintenance management, easy to utilize, and can effectively remove giardia lamblia and the Cryptosporidium in water;
(2) the utility model water inflow control system comprises lift pump, first flow meter, permanent position water tank and the first valve, convenient detection and adjusting for water inlet system;
(3) the utility model outlet controlling system comprises vacuum meter, the 3rd under meter, the 3rd valve, lift pump, the 4th valve, the 5th valve, buffer tube and vacuum pump, facilitate the switching between lift pump and vacuum pump, can effectively inorganic arsenic be removed from water body, and low price, effectively reduce processing cost, easy to clean to film, extends work-ing life of film, reduces the maintenance operation expense of this technique;
(4) in the utility model reactor, also comprise agitator, can promote the absorption of sorbent material to arsenic, shorten the treatment time;
(5) the utility model aeration oxidation system comprises aeration tube, the second under meter, the second valve and pneumatic pump, can calculate accurately aeration rate, the operation of easier control device;
(6) the utility model adopts immersion external pressure ultra-filtration membrane, and the energy consumption of comparing with inner pressed ultra-filtration membrane is significantly reduced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, lift pump; 21, first flow meter; 22, the second under meter; 23, the 3rd under meter; 3, permanent position water tank; 4, agitator; 5, reactor; 6, ultrafiltration membrance filter system; 7, aeration tube; 81, the first valve; 82, the second valve; 83, the 3rd valve; 84, the 4th valve; 85, the 5th valve; 9, buffer tube; 10, vacuum meter; 11, pneumatic pump; 12, lift pump; 13, vacuum pump.
Embodiment
By the following examples the utility model is further described:
embodiment 1
As shown in Figure 1, the integrated arsenic removing apparatus of a kind of tap water, comprise water inflow control system, reactor 5 and ultrafiltration membrance filter system 6, also comprise outlet controlling system and aeration oxidation system, water inflow control system comprises lift pump 1, first flow meter 21, permanent position water tank 3 and the first valve 81; One end of lift pump 1 is connected with water inlet pipe, and the other end is connected with permanent position water tank 3 by pipeline; First flow meter 21 is on the pipeline between lift pump 1 and permanent position water tank 3; Permanent position water tank 3 is connected in reactor 5 by pipeline; The first valve 81 is on the pipeline between permanent position water tank 3 and reactor 5; In reactor 5, also comprise agitator 4; Ultrafiltration membrance filter system 6 is positioned at the middle and lower part of reactor 5; Outlet controlling system comprises vacuum meter 10, the 3rd under meter 23, the 3rd valve 83, lift pump 12, the 4th valve 84, the 5th valve 85, buffer tube 9 and vacuum pump 13; Ultrafiltration membrance filter system 6 is connected with lift pump 12 with the 3rd under meter 23, the 3rd valve 83 successively by pipeline; Vacuum meter 10 is connected on the pipeline between ultrafiltration membrance filter system 6 and the 3rd under meter 23; On pipeline between the 3rd under meter 23 and the 3rd valve 83, having ，Gai branch of branch is connected with vacuum pump 13 with the 4th valve 84, buffer tube 9, the 5th valve 85 successively; Aeration oxidation system comprises aeration tube 7, the second under meter 22, the second valve 82 and pneumatic pump 11; Aeration tube 7 is positioned at the bottom of reactor 5; Between aeration tube 7, the second under meter 22, the second valve 82 and pneumatic pump 11, by pipeline, connect successively.In the water tank 3 of permanent position, also comprise floodometer.
First the pending arsenic polluted drinking water that is subject to is promoted to permanent position water tank 3 by lift pump 1, then enters reactor 5 by permanent position water tank 3, at the interior hydraulic detention time 2min of reactor 5.Meanwhile, in reactor 5, add sorbent material, sorbent material choice of powder ferric oxide or manganese oxide or other sorbent materials, particle size is 10 mm～50 mm, dosage is 100 mg/L.The immersion plate-type hyperfiltration membrane that hyperfiltration membrane assembly adopts Shanghai Lang Ji membrane separation plant Engineering Co., Ltd to provide, membrane material is polyvinylidene chloride.The water flux excessively of ultra-filtration membrane is 30L/ ㎡ h, and ultra-filtration membrane water outlet is extracted out by vacuum pump 13, and now the 3rd valve 83 is in closing condition, and the 4th valve 84 and the 5th valve 85 are in open mode.The swabbing pressure of suction pump, within the scope of 15kPa～50kPa, is measured by vacuum meter 10.Reactor 5 by outside pneumatic pump 11 by aeration tube 7 to the air that exposes to the sun in reactor 5, gas-water ratio is 30:1, by the second under meter 22 and the second valve 82, controls.In reactor 5, the sorbent material residence time is 25d, after processing, discharges saturated adsorption agent.During 6 back flushing of ultrafiltration membrance filter system, close the 4th valve 84 and the 5th valve 85, open the 3rd valve 83 and lift pump 12, ultrafiltration membrance filter system 6 is carried out to back flushing.After arsenic removing apparatus of the present utility model is processed, in tap water, total arsenic concentration is lower than 0.002 mg/L.Compare fixed bed processing mode in the past, not only can synchronously remove two worms, algae, virus etc., can also reduce ton water treatment construction investment and a working cost.
embodiment 2
With embodiment 1, difference is: the hyperfiltration membrane assembly in ultrafiltration membrance filter system 6 is immersion external pressure hyperfiltration membrane assembly.
Claims (4)
1. the integrated arsenic removing apparatus of tap water, comprise water inflow control system, reactor (5) and ultrafiltration membrance filter system (6), it is characterized in that, also comprise outlet controlling system and aeration oxidation system, described water inflow control system comprises lift pump (1), first flow meter (21), permanent position water tank (3) and the first valve (81); One end of described lift pump (1) is connected with water inlet pipe, and the other end is connected with permanent position water tank (3) by pipeline; Described first flow meter (21) is positioned on the pipeline between lift pump (1) and permanent position water tank (3); Described permanent position water tank (3) is connected in reactor (5) by pipeline; Described the first valve (81) is positioned on the pipeline between permanent position water tank (3) and reactor (5); In described reactor (5), also comprise agitator (4); Described ultrafiltration membrance filter system (6) is positioned at the middle and lower part of reactor (5); Described outlet controlling system comprises vacuum meter (10), the 3rd under meter (23), the 3rd valve (83), lift pump (12), the 4th valve (84), the 5th valve (85), buffer tube (9) and vacuum pump (13); Described ultrafiltration membrance filter system (6) is connected with lift pump (12) with the 3rd under meter (23), the 3rd valve (83) successively by pipeline; Described vacuum meter (10) is connected on the pipeline between ultrafiltration membrance filter system (6) and the 3rd under meter (23); On pipeline between the 3rd described under meter (23) and the 3rd valve (83), having ，Gai branch of branch is connected with vacuum pump (13) with the 4th valve (84), buffer tube (9), the 5th valve (85) successively; Described aeration oxidation system comprises aeration tube (7), the second under meter (22), the second valve (82) and pneumatic pump (11); Described aeration tube (7) is positioned at the bottom of reactor (5); Between described aeration tube (7), the second under meter (22), the second valve (82) and pneumatic pump (11), by pipeline, connect successively.
2. the integrated arsenic removing apparatus of tap water according to claim 1, is characterized in that: the hyperfiltration membrane assembly in described ultrafiltration membrance filter system (6) is polyvinylidene fluoride (PVDF) ultrafiltration membrane; Kit form is flat.
3. the integrated arsenic removing apparatus of tap water according to claim 1, is characterized in that: the hyperfiltration membrane assembly in described ultrafiltration membrance filter system (6) is immersion external pressure hyperfiltration membrane assembly.
4. according to the integrated arsenic removing apparatus of tap water described in any one in claim 1-3, it is characterized in that: in described permanent position water tank (3), also comprise floodometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543947.8U CN203419801U (en) | 2013-09-03 | 2013-09-03 | Integrated arsenic removal device for drinking water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543947.8U CN203419801U (en) | 2013-09-03 | 2013-09-03 | Integrated arsenic removal device for drinking water |
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| CN203419801U true CN203419801U (en) | 2014-02-05 |
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| CN201320543947.8U Expired - Lifetime CN203419801U (en) | 2013-09-03 | 2013-09-03 | Integrated arsenic removal device for drinking water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892515A (en) * | 2017-01-23 | 2017-06-27 | 中国科学院生态环境研究中心 | A kind of method that high concentration organo-arsenic wastewater treatment is reclaimed with arsenic resource |
| CN106943876A (en) * | 2017-05-22 | 2017-07-14 | 哈尔滨工业大学 | The ultrafiltration membrane reactor device and application method of a kind of multi-operating condition |
-
2013
- 2013-09-03 CN CN201320543947.8U patent/CN203419801U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892515A (en) * | 2017-01-23 | 2017-06-27 | 中国科学院生态环境研究中心 | A kind of method that high concentration organo-arsenic wastewater treatment is reclaimed with arsenic resource |
| CN106892515B (en) * | 2017-01-23 | 2021-03-02 | 中国科学院生态环境研究中心 | Method for treating high-concentration organic arsenic wastewater and recycling arsenic |
| CN106943876A (en) * | 2017-05-22 | 2017-07-14 | 哈尔滨工业大学 | The ultrafiltration membrane reactor device and application method of a kind of multi-operating condition |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
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| CX01 | Expiry of patent term |