CN201106007Y - Original ecological aluminium hydroxide and hyperfiltration membrane combined defluorination apparatus - Google Patents
Original ecological aluminium hydroxide and hyperfiltration membrane combined defluorination apparatus Download PDFInfo
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- CN201106007Y CN201106007Y CNU2007200973980U CN200720097398U CN201106007Y CN 201106007 Y CN201106007 Y CN 201106007Y CN U2007200973980 U CNU2007200973980 U CN U2007200973980U CN 200720097398 U CN200720097398 U CN 200720097398U CN 201106007 Y CN201106007 Y CN 201106007Y
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Abstract
The utility model relates to a fluorine removing device in combination with nascent aluminum hydroxide and ultra-filtration membrane to remove fluoride in source water and guarantee that fluoride contained in the water meets drinking water standard. A source water pipeline is communicated with an acid and alkaline tank of a pH value control device, and a pH value probe head is extended in the source water pipeline; a delivery conduit of the pH value control device is connected with an aluminum salt tank and then connected with an inlet of a coagulation and sedimentation tank; the top of the coagulation part of the coagulation and sedimentation tank is provided with a blender; an oblique pipe is arranged on the top of the part where sedimentation occurs usually; the output end of the coagulation and sedimentation tank is connected with the assembly of an ultra-filtration membrane, and yielding water is delivered by the assembly of the ultra-filtration membrane; an ultra-filtration membrane filter and a coagulation and sedimentation device are connected with a concentrate water refluxing pipeline. The fluorine removing device of the utility model has the advantages that: 1. the fluorine in the water is absorbed and removed by adopting organic aluminum salt to generate nascent aluminum hydroxide, and the absorption effect is not affected by the pH value of the source water; 2. alum particles are separated with the ultra-filtration membrane, therefore, the precision of solid-liquid separation is high; 3. the equipment has high degree of automation and is applicable to a middle scale or small scale high-fluorine water treatment project.
Description
Technical field
The utility model belongs to a kind of water treatment device, and particularly a kind of employing ecosystem aluminium hydroxide and ultra-filtration membrane coupling fluorine removal device are used for removing the fluorochemical of source water, guarantee that fluorochemical reaches water quality standard for drinking water in the water outlet.
Background technology
Fluorine is one of requisite trace element of human life.An amount of fluorine can make bone, tooth firm, reduces the carious tooth sickness rate.But the fluorine long-term accumulation can be goed deep into bone and generate CaF when human body
2, cause sclerotin crisp, the tooth mottled enamels, the ligament calcification, ankylosis even paralysis, the severe patient disability is having a strong impact on the healthy of the people.Defluorinating process mainly contains coagulant sedimentation, filtering layer absorption method, ion exchange method, electrocoagulation, electroosmose process, reverse osmosis method etc. at present.Coagulation Method technology has that operation is simple, medicament is easy to get, and obtained extensive utilization, but it is for source water ph value instability, as high HCO
3-Underground water, treatment effect is relatively poor, traditional in addition coagulating sedimentation is not good to fluorine-containing particulate separating effect, causes water of high fluorine content defluorination effect that fluorine content is higher than more than the 4mg/L undesirable, and aluminium content height in the water outlet.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, a kind of ecosystem aluminium hydroxide and ultra-filtration membrane coupling fluorine removal device are provided, the defluorinating process that adopts ecosystem aluminium hydroxide defluorinating process to combine with the ultra-filtration membrane partition method, be equipped with suitable substance P H regulation system simultaneously, the unsettled high fluorine groundwater of process source water pH, working cost is low, the level of automation height, the water outlet fluorine content is stable, less than 1mg/L.
The utility model is achieved through the following technical solutions: a kind of ecosystem aluminium hydroxide and ultra-filtration membrane coupling fluorine removal device is characterized in that: it is by forming by the interconnective soda acid PH of pipeline setting device, coagulating sedimentation device, ultrafiltration membrane filter device.
Soda acid pH value setting device comprises soda acid jar and pH value probe, and the main water supply tube road is communicated with the soda acid jar, and the pH value probe stretches into the main water supply tube road;
The coagulating sedimentation device comprises aluminium salt cellar, coagulating sedimentation jar composition, the coagulating sedimentation jar is divided into coagulation part and precipitation part, soda acid PH setting device delivery conduit is connected with coagulating sedimentation jar inlet, agitator is installed in the top of coagulating sedimentation jar coagulation part, in the coagulating sedimentation jar precipitation part inclined tube is installed;
Ultrafiltration membrane filter device is made up of hyperfiltration membrane assembly, and the output terminal of coagulating sedimentation device is connected with hyperfiltration membrane assembly, produces water by hyperfiltration membrane assembly output, and ultrafiltration membrane filter device and coagulating sedimentation device coagulation are connected the concentrate recirculation pipeline between partly.
Above-mentioned agitator has at least 3.
Between the above-mentioned ultra-filtration membrane aperture 0.001-0.01 μ m.
Above-mentioned ultra-filtration membrane material adopts corrosion resistant polyvinylidene difluoride (PVDF) material.
Above-mentioned ultrafiltration membrane filter device also comprises back-purge system, is connected with the hyperfiltration membrane assembly output terminal.
The utlity model has following advantage: 1, adopt inorganic aluminate by generating the fluorine in the ecosystem aluminium hydroxide absorption removal water, adsorption effect is not influenced by former water PH, and adsorption-defluorination is effective; 2, adopt ultra-filtration membrane to separate, replace traditional precipitator method and separate alumen ustum, solid-liquid separation precision height has avoided a small amount of alumen ustum to penetrate film, forms the secondary flocculation at water outlet side, influences fluorine removing rate and produces water water quality; 3, adopt the PLC electrical control, can add remote control function, the automation degree of equipment height is applicable to the water of high fluorine content treatment project of middle and small scale.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment: as shown in Figure 1, a kind of ecosystem aluminium hydroxide and ultra-filtration membrane coupling fluorine removal device is characterized in that: it is by forming by the interconnective soda acid PH of pipeline setting device 1, coagulating sedimentation device 2, ultrafiltration membrane filter device 3,
Soda acid pH value setting device 1 comprises soda acid jar 4 and pH value probe 5, and main water supply tube road 6 is communicated with soda acid jar 4, and pH value probe 5 stretches into main water supply tube road 6;
Ultrafiltration membrane filter device 3 is made up of hyperfiltration membrane assembly 11, the output terminal of the coagulating sedimentation jar 8 of coagulating sedimentation device 2 is connected with hyperfiltration membrane assembly 11, produce water by hyperfiltration membrane assembly 11 output, be connected concentrate recirculation pipeline 13 between ultrafiltration membrane filter device 3 and coagulating sedimentation device 2 coagulation part 8-1;
Between the above-mentioned ultra-filtration membrane aperture 0.001-0.01 μ m; The ultra-filtration membrane material adopts corrosion resistant polyvinylidene difluoride (PVDF) material.
Above-mentioned ultrafiltration membrane filter device 3 also comprises back-purge system 12, is connected with hyperfiltration membrane assembly 11 output terminals.
Principle of work of the present utility model is: according to former water pH value, automatically determine the soda acid content that adds, after former water is regulated by the pH value adjusting device, keep ecosystem aluminium hydroxide to form the required best pH of alumen ustum by pH value probe, add inorganic aluminate to the coagulating sedimentation device, under suitable pH value, the stirring action that comes from multistage coagulation agitator, the rapid hydrolysis of inorganic aluminate generates the ecosystem aluminium hydroxide with huge adsorption surface area, fluorochemical in the water had very strong adsorptive power, simultaneously by stirring, make water in coagulation device, form suitable degree of irregularity (GT value), impel behind the ecosystem aluminium hydroxide absorption fluorine and form the aluminium hydroxide alumen ustum, precipitate in the coagulating sedimentation section, supernatant liquor and a spot of flco are under the effect of water pump, enter ultrafiltration membrance filter, separate by ultra-filtration membrane, guarantee that the fluorine-containing alumen ustum that generates thoroughly separates with water, filtered solution is the product water of fluorine content less than 1mg/L, meets drinking water standard, and dense water turns back to the coagulating sedimentation jar and handles, to guarantee that producing water ratio is greater than 95%, the every filter 23 of ultra-filtration membrane 0 minute just need carry out 1-2 minute air water backwash, to keep the flux of film.
This installs actual engineering operation and shows, add 140mg/L anhydrous slufuric acid aluminium, and when keeping that pH value is between 6.2-6.5 in the coagulating sedimentation jar, can effectively fluorochemical in the former water be reduced to below the 1.0mg/L from 2.3-2.7mg/L, delivery turbidity is less than 0.05NTU, aluminium content is less than 0.02mg/L in the water outlet, and effluent quality arrives the Drinking Water water quality standard.
Claims (5)
1, a kind of ecosystem aluminium hydroxide and ultra-filtration membrane coupling fluorine removal device is characterized in that: it is by forming by the interconnective soda acid PH of pipeline setting device, coagulating sedimentation device, ultrafiltration membrane filter device;
Soda acid pH value setting device comprises soda acid jar and pH value probe, and the main water supply tube road is communicated with the soda acid jar, and the pH value probe stretches into the main water supply tube road;
The coagulating sedimentation device comprises aluminium salt cellar, coagulating sedimentation jar composition, the coagulating sedimentation jar is divided into coagulation part and precipitation part, soda acid PH setting device delivery conduit is connected with coagulating sedimentation jar inlet, agitator is installed in the top of coagulating sedimentation jar coagulation part, in the coagulating sedimentation jar precipitation part inclined tube is installed;
Ultrafiltration membrane filter device is made up of hyperfiltration membrane assembly, and the output terminal of coagulating sedimentation device is connected with hyperfiltration membrane assembly, produces water by hyperfiltration membrane assembly output, and ultrafiltration membrane filter device and coagulating sedimentation device coagulation are connected the concentrate recirculation pipeline between partly.
2, a kind of ecosystem aluminium hydroxide according to claim 1 and ultra-filtration membrane coupling fluorine removal device, it is characterized in that: above-mentioned mechanical stirrer has at least 3.
3, a kind of ecosystem aluminium hydroxide according to claim 1 and ultra-filtration membrane coupling fluorine removal device is characterized in that: between the above-mentioned ultra-filtration membrane aperture 0.001-0.01 μ m.
4, a kind of ecosystem aluminium hydroxide according to claim 1 and ultra-filtration membrane coupling fluorine removal device, it is characterized in that: above-mentioned ultra-filtration membrane material adopts corrosion resistant polyvinylidene difluoride (PVDF) material.
5, a kind of ecosystem aluminium hydroxide according to claim 1 and ultra-filtration membrane coupling fluorine removal device, it is characterized in that: above-mentioned ultrafiltration membrane filter device also comprises back-purge system, is connected with the hyperfiltration membrane assembly output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973980U CN201106007Y (en) | 2007-09-12 | 2007-09-12 | Original ecological aluminium hydroxide and hyperfiltration membrane combined defluorination apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973980U CN201106007Y (en) | 2007-09-12 | 2007-09-12 | Original ecological aluminium hydroxide and hyperfiltration membrane combined defluorination apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106007Y true CN201106007Y (en) | 2008-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200973980U Expired - Lifetime CN201106007Y (en) | 2007-09-12 | 2007-09-12 | Original ecological aluminium hydroxide and hyperfiltration membrane combined defluorination apparatus |
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| Country | Link |
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| CN (1) | CN201106007Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253789A (en) * | 2013-03-22 | 2013-08-21 | 韩江 | Regeneration-free high fluorine water defluorination technology |
| CN111252859A (en) * | 2020-02-19 | 2020-06-09 | 中国科学院生态环境研究中心 | Method for quickly removing perfluoro/polyfluoro compound in environmental water |
| CN112881497A (en) * | 2021-04-13 | 2021-06-01 | 广西博世科环保科技股份有限公司 | Method for detecting fluoride in aluminum electrolysis overhaul slag leaching solution |
-
2007
- 2007-09-12 CN CNU2007200973980U patent/CN201106007Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253789A (en) * | 2013-03-22 | 2013-08-21 | 韩江 | Regeneration-free high fluorine water defluorination technology |
| CN111252859A (en) * | 2020-02-19 | 2020-06-09 | 中国科学院生态环境研究中心 | Method for quickly removing perfluoro/polyfluoro compound in environmental water |
| CN111252859B (en) * | 2020-02-19 | 2021-08-03 | 中国科学院生态环境研究中心 | Method for quickly removing perfluoro/polyfluoro compound in environmental water |
| CN112881497A (en) * | 2021-04-13 | 2021-06-01 | 广西博世科环保科技股份有限公司 | Method for detecting fluoride in aluminum electrolysis overhaul slag leaching solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |