CN105254077A - Production method and device of tap water - Google Patents
Production method and device of tap water Download PDFInfo
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- CN105254077A CN105254077A CN201510798851.XA CN201510798851A CN105254077A CN 105254077 A CN105254077 A CN 105254077A CN 201510798851 A CN201510798851 A CN 201510798851A CN 105254077 A CN105254077 A CN 105254077A
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- water
- pond
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- flocculation
- tap water
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Abstract
The invention relates to a production method and device of tap water. The production device comprises a precipitate generation tank, a flocculation tank, a coagulation aid tank, a precipitation tank, a full-automatic sand filter, an intermediate water tank and a high-level water storage tank, wherein the precipitate generation tank is connected with a well through a first water pump and a water pumping pipe, the flocculation tank is connected with the precipitate generation tank, the coagulation aid tank is connected with the flocculation tank, the precipitation tank is connected with the coagulation aid tank, the full-automatic sand filter is connected with the precipitation tank through a second water pump, the intermediate water tank is connected with the full-automatic sand filter, and the high-level water storage tank is connected with the intermediate water tank through a third water pump. Compared with the prior art, the production method and the production device have the advantages of simple process, low investment and stable removal efficiency of fluoride.
Description
Technical field:
The present invention relates to a kind of water treatment method and device.
Background technology:
The tap water of the mountain village of existing remote districts is produced, and former water often adopts underground water, this former water, and often containing a large amount of harmful soluble substances, modal a kind of soluble substance is fluorochemical.Fluorine is the chemical element of needed by human, appropriate fluorine is that tooth and skeletal structure are necessary, and fluorine is too much or deficiency all can affect healthy, very little to the fluorine content interval that human body is suitable in natural water body, approximately 0.6-1.0mg/L, be less than 0.6mg/L and carious tooth and osteoporosis then occur, be greater than 1.0mg/L and just there will be fluorosis disease
generally be water of high fluorine content more than 1.5mg/L, long-term drinking water of high fluorine content then can cause fluorosis, causes dental fluorosis and osteofluorosis.
Current defluorination method is relatively many, sums up and mainly contains the precipitator method, absorption and several large class of ion exchange method, electrodialysis and reverse osmosis desalination method.The U.S., France and Germany often utilize activated alumina (manufacturer's recommended) or tricalcium phosphate to carry out except fluorine process as sorbent material to water of high fluorine content.The U.S. and French Chang Xianyong sulfuric acid are adjusted to 5.5 the pH value of former water, and recycling activated alumina or tricalcium phosphate filtering layer are except fluorine contained in anhydrating, and it is 7.0 that water outlet adjusts back to pH value with sodium hydroxide again.And Germany often utilizes carbonic acid gas to reduce the pH value of water inlet.Russia mainly utilizes activated alumina to adsorb and the aluminate coagulating precipitator method remove fluorine, and the compact footprint removal of fluorine from water equipment principle of India is coagulant sedimentation.Current China comprises activated alumina and bone black filtering layer absorption method and coagulant sedimentation, electroosmose process etc. except the most frequently used method of fluorine.
(1) coagulant sedimentation
The coagulating agent used when utilizing coagulating sedimentation to remove fluorion contained in water mainly contains aluminium salt (alum, polymerize aluminum chloride, Tai-Ace S 150, polymeric aluminium chlorohydroxide), calcified material (calcium oxide, calcium sulfate, calcium phosphate), magnesium compound (magnesium oxide, magnesium hydroxide, magnesium sulfate).Wherein polymerize aluminum chloride application at most, and effect is best.
Polymerize aluminum chloride is utilized to remove the principle of fluorine as follows: polymerize aluminum chloride molecular formula is Al (OH) NCl
3 -.When polymerize aluminum chloride is water-soluble.Rapid hydrolysis, forms monokaryon or multinuclear water aluminium mixture [Al (OH)
6] and carry out hydrolysis reaction:
[Al(H
2O)
6]
3++H
2O→[Al(OH)(H
2O)
5]
2++H
3O
+
[Al(OH)(H
2O)
5]
2++H
2O→[Al(OH)
2(H
2O)
4]
++H
3O
+
[Al(OH)
2(H
2O)
4]
++H
2O→[Al(OH)
3(H
2O)
3]↓+H
3O
+
By the insoluble throw out [Al (OH) that said hydrolyzed reaction generates
3(H
2o)
3] chlorion is adsorbed, and coprecipitation thus with except the middle fluorion that anhydrates with it.
This technical matters is simple, invest little, but the removal efficiency of fluorochemical is stable not.
(2) electroosmose process and reverse osmosis method
Electrodialysis and reverse osmosis method remove the method for fluorion in water, and wherein electroosmose process is a kind of common method of Pure-water Making, and its principle utilizes under the effect of DC electric field, soluble ion migration in solution.Be placed in electrodialysis cell by the zwitterion film with selective penetrated property, a kind of film allows anion-permeable but repels positively charged ion, and another kind of film is then contrary, and under the effect of electric field, in water, fluorion tunicle is separated and is removed.Utilizing electrodialysis to remove fluorine is realize falling fluorine on the basis of desalination, and the fluorine that removes comparatively being suitable for salt water water of high fluorine content uses.And the principle of reverse osmosis method for removing fluor enables moisture factory through a kind of special film by mechanical pressure, wherein fluorion then can not through and be removed.This method except fluorine can except the middle nearly all poisonous and hazardous material affecting HUMAN HEALTH that anhydrates, and require high to water quality pre-treatment and need concentrate to build a station and carry out operating maintenance and management by professional, costly, the utilization ratio of water is relatively low for cost.
(3) activated alumina method
Activated alumina is a kind of porous adsorbent, usually uses Al
2o
3nH
2o represents.It has the particle diameter of various different size, and the particle diameter of activated alumina wherein used in fluorine removal device is generally 28-48 order.When utilizing activated alumina process water of high fluorine content, greatly falling fluorine ability because aluminum oxide itself there is no, needing to utilize acidic solution to make it activate.At present, most widely used in world wide is activated alumina method.The most famous and that working time is the longest fluorine removal device is device American Public Health office nineteen fifty-two being built in Texas Bartlett.Activated alumina selected by the filtrate that this device removes fluorine, and substantially runs until the eighties in 20th century with original filtrate always.
Defluorination of Formation Mater By Adsorption On Activated Alumina has the following advantages: a. has higher fluorine exchange capacity; B. it removes the impact that fluorine ability is not subject to sulfate radical and chlorine root in water; C. it is selectively removed the fluorine in water, does not adsorb other ions; D. it requires very not tight to pre-treatment.Based on above-mentioned advantage, Defluorination of Formation Mater By Adsorption On Activated Alumina is widely used, but it is lower to the adsorptive capacity of fluorine, and adsorbs the complicated difficulty of saturated rear reclaiming process.And the water after its process has pained mouthfeel due to the increase of aluminum ion and sulfate ion, and long-term drinking can increase the danger of suffering from senile dementia.
Summary of the invention:
It is simple that goal of the invention of the present invention is to provide a kind of technique, invests production method and the device of the stable tap water of removal efficiency that is little, fluorochemical.
The production method of tap water of the present invention realizes like this, comprise throw out generative process, flocculation process, precipitation process, filtration procedure, sterilizing process, high-level water storage successively, throw out generative process is that after the fluorinated water of well extraction enters throw out generation pond, the size according to fluorine content generates pond toward throw out and adds Ca(OH)
2to generate solid sediment, then the water generating solid sediment imported the flocculation basin in flocculation process successively and help in solidifying pond, flocculation process is first mixed into flocculation agent toward the water in flocculation basin, then water is imported and help solidifying pond and be mixed into coagulant aids toward helping in solidifying pond, to accelerate the flocculating settling of fluorine-containing solids, afterwards, water after being flocculated by solids imports in the settling tank of precipitation process, in precipitation process, precipitation of solid material gets off, water after precipitation delivers to filtration procedure, in filtration procedure, by full-automatic sand-bed filter, solid floccules remaining in water is filtered down, filtration procedure water out delivers to sterilizing process, in sterilizing process, sterilizing agent is added to kill the bacterium in water toward water, like this, the water reached after tap water quality standard is delivered to closed high-level water storage pond and is carried out high-level water storage, so that glassware for drinking water has enough hydraulic pressure to supply water to user.
The production equipment of tap water of the present invention be achieved in that comprise the throw out be connected with well by the first water pump, drinking-water pipe generate pond, generate flocculation basin that pond is connected with throw out, be connected with flocculation basin help solidifying pond, with the settling tank helping solidifying pond to be connected, the full-automatic sand-bed filter be connected with settling tank by the second water pump, the intermediate pool be connected with full-automatic sand-bed filter, the high-level water storage pond that is connected with intermediate pool by the 3rd water pump.
Here, the model that full-automatic sand-bed filter adopts the Ah Ka of Israel to produce is: the ARKAL self-circulation strainer of AKLF-12, when high-efficiency and precision treater is in filtration condition, the water of filtered is by three layers of water distributor, coordinate spherical housing, to arrive the packing layer in high-efficiency and precision treater close to the state of advection, when water flows through packing layer, impurity is trapped within packing layer, 55 mushroom filtration water collectors are had bottom high-efficiency and precision treater, water after filtering is collected equably and flowed out, advection filters, determine that high-efficiency and precision treater can filter at high flow rates, still can reach good filter effect, along with the continuous accumulation of impurity in packing layer, loss of pressure head will constantly increase, when loss of pressure head arrives certain setting limit, high-efficiency and precision treater is converted to backwash state automatically, to clean the impurity be accumulated, when system is in backwash state, one or more high-efficiency and precision treaters with group can by clean, water through filtering pours in down a chimney in this high-efficiency and precision treater by a threeway backwash valve simultaneously, pour in down a chimney in process at this, rushed under the impact of current by the packing layer of the high-efficiency and precision treater of backwash, impurity is then discharged by the backwash mouth of a threeway, in high-efficiency and precision treater, the water collector of particular design makes packing layer form interior circulation when backwash state, wash by rubbing with the hands mutually between filler, improve back flushing efficiency to greatest extent, backwash water needed for minimizing, the sand forming packing layer is not run during backwash simultaneously, at the end of backwash, valve is returned to filtration condition again, next high-efficiency and precision treater then prepares to enter backwash state.
Compared with the prior art the present invention, adds Ca(OH owing to adopting)
2generate solid sediment and by adding flocculation agent coagulant aids, these solidss flocculated, to accelerate its sedimentation, finally, adopting full-automatic sand-bed filter to carry out last filtration, therefore, there is technique simple, invest the advantage that removal efficiency that is little, fluorochemical is stable.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of settling tank.
Embodiment:
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:
As shown in the figure, the production equipment of tap water of the present invention be achieved in that comprise the throw out be connected with well 3 by the first water pump 1, drinking-water pipe 2 generate pond 4, generate flocculation basin 5 that pond 4 is connected with throw out, be connected with flocculation basin 5 help solidifying pond 6, with two settling tanks 7 helping solidifying pond 6 to be connected, the full-automatic sand-bed filter 9 be connected with settling tank 7 with the second water pump 8 by water pipe, the intermediate pool 10 be connected with full-automatic sand-bed filter 9 by water pipe, the high-level water storage pond 12 that is connected with intermediate pool 10 by the 3rd water pump 11.
The model that full-automatic sand-bed filter 9 adopts the Ah Ka of Israel to produce is: the ARKAL self-circulation strainer of AKLF-12, and its recoil mouth of a river is connected with intermediate pool 10 by recoil water pump 19, and like this, required back-flushing is provided by intermediate pool 10.
As shown in Figure 2, here, the bottom of settling tank 7 is inverted round stage or terrace with edge.
Be provided with the water guide structure 13 in the middle part of by water inlet importing settling tank 7 in settling tank 7, so that the throw out in water has time enough before overflowing above settling tank 7, be deposited to the bottom of settling tank 7.
Connect a sludge press filtration device 15 by pipe, sludge pump 14 bottom settling bowl 7, the hydraulic pressure in mud is leached come, to reduce the volume of mud, facilitate transport processing and prevent its contaminate environment.
The sterilization tank 17 with medicinal liquid feeder 16 is provided with, so that the water yield transmitted according to full-automatic sand-bed filter 9 exactly adds liquid between intermediate pool 10 and full-automatic sand-bed filter 9.
Sludge sump 18 is connected with, just to send to sludge press filtration device 15 by sludge pump 14 after collecting enough mud between sludge pump 14 and settling bowl 7.
Throw out generates pond 4, flocculation basin 5, helps solidifying pond 6, settling tank 7, sterilization tank 17, intermediate pool 10, sludge sump 18 are all form with stainless steel plate manufacture, like this, just facilitates manufacture, installs.
The production method of tap water of the present invention realizes like this, comprise throw out generative process a, flocculation process b, precipitation process c, filtration procedure d, sterilizing process e, high-level water storage f successively, throw out generative process a is that after the fluorinated water of well 3 extraction enters throw out generation pond 4, the size according to fluorine content generates pond 4 toward throw out and adds Ca(OH)
2to generate solid sediment, then the water generating solid sediment imported successively the flocculation basin 5 in flocculation process b and help in solidifying pond 6, flocculation process b is first mixed into flocculation agent toward the water in flocculation basin 5, then water is imported and help solidifying pond 6 and be mixed into coagulant aids toward helping in solidifying pond, to accelerate the flocculating settling of fluorine-containing solids, afterwards, water after being flocculated by solids imports in the settling tank 7 of precipitation process c, in precipitation process, precipitation of solid material gets off, water after precipitation delivers to filtration procedure d, in filtration procedure d, by full-automatic sand-bed filter 9, solid floccules remaining in water is filtered down, filtration procedure water out delivers to sterilizing process e, in sterilizing process, sterilizing agent (dioxide peroxide) is added to kill the bacterium in water toward water, like this, the water reached after tap water quality standard is delivered to closed high-level water storage pond 12 and is carried out high-level water storage, so that glassware for drinking water has enough hydraulic pressure to supply water to user.
Claims (9)
1. a production equipment for tap water, it is characterized in that comprising the throw out be connected with well by the first water pump, drinking-water pipe generate pond, generate flocculation basin that pond is connected with throw out, be connected with flocculation basin help solidifying pond, with the settling tank helping solidifying pond to be connected, the full-automatic sand-bed filter be connected with settling tank by the second water pump, the intermediate pool be connected with full-automatic sand-bed filter, the high-level water storage pond that is connected with intermediate pool by the 3rd water pump.
2. the production equipment of tap water according to claim 1, is characterized in that the model that full-automatic sand-bed filter adopts the Ah Ka of Israel to produce is: the ARKAL self-circulation strainer of AKLF-12.
3. the production equipment of tap water according to claim 1 and 2, is characterized in that the bottom of settling tank is inverted round stage or terrace with edge.
4. the production equipment of tap water according to claim 3, is characterized in that being provided with in settling tank the water guide structure in the middle part of by water inlet importing settling tank 7.
5. the production equipment of the tap water according to claim 1 or 2 or 4, is characterized in that connecting a sludge press filtration device by pipe, sludge pump bottom settling bowl.
6. the production equipment of tap water according to claim 5, is characterized in that being connected with sludge sump between sludge pump and settling bowl 7.
7. the production equipment of the tap water according to claim 1 or 2 or 4 or 6, is characterized in that the sterilization tank be provided with between intermediate pool and full-automatic sand-bed filter with medicinal liquid feeder.
8. the production equipment of tap water according to claim 7, is characterized in that throw out generates pond, flocculation basin, helps solidifying pond, settling tank, sterilization tank, intermediate pool, sludge sump to be all form with stainless steel plate manufacture.
9. the production method of a tap water, it is characterized in that comprising throw out generative process, flocculation process, precipitation process, filtration procedure, sterilizing process, high-level water storage successively, throw out generative process is that after the fluorinated water of well extraction enters throw out generation pond, the size according to fluorine content generates pond toward throw out and adds Ca(OH)
2to generate solid sediment, then the water generating solid sediment imported the flocculation basin in flocculation process successively and help in solidifying pond, flocculation process is first mixed into flocculation agent toward the water in flocculation basin, then water is imported and help solidifying pond and be mixed into coagulant aids toward helping in solidifying pond, to accelerate the flocculating settling of fluorine-containing solids, afterwards, water after being flocculated by solids imports in the settling tank of precipitation process, in precipitation process, precipitation of solid material gets off, water after precipitation delivers to filtration procedure, in filtration procedure, by full-automatic sand-bed filter, solid floccules remaining in water is filtered down, filtration procedure water out delivers to sterilizing process, in sterilizing process, sterilizing agent is added to kill the bacterium in water toward water, like this, the water reached after tap water quality standard is delivered to closed high-level water storage pond and is carried out high-level water storage, so that glassware for drinking water has enough hydraulic pressure to supply water to user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798851.XA CN105254077A (en) | 2015-11-19 | 2015-11-19 | Production method and device of tap water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798851.XA CN105254077A (en) | 2015-11-19 | 2015-11-19 | Production method and device of tap water |
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| Publication Number | Publication Date |
|---|---|
| CN105254077A true CN105254077A (en) | 2016-01-20 |
Family
ID=55094082
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|---|---|---|---|
| CN201510798851.XA Pending CN105254077A (en) | 2015-11-19 | 2015-11-19 | Production method and device of tap water |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048838A (en) * | 1989-07-15 | 1991-01-30 | 何庆余 | A kind of method of eliminating excess fluoride in the well water |
| CN102120657A (en) * | 2011-01-28 | 2011-07-13 | 姜雪 | Fluorine removing process and device for drinking water |
| CN103723862A (en) * | 2013-12-31 | 2014-04-16 | 李�杰 | Production method of tap water |
| CN103991984A (en) * | 2014-05-28 | 2014-08-20 | 合肥海润光伏科技有限公司 | Fluoride-contained wastewater treatment method and device |
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| EP2792645A1 (en) * | 2013-04-18 | 2014-10-22 | Gruppo Zilio S.P.A. | Process for removing fluorides from water |
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| CN104591363A (en) * | 2015-02-13 | 2015-05-06 | 河海大学 | Integrated water purification device for removing fluoride in water |
| CN205133301U (en) * | 2015-11-19 | 2016-04-06 | 佛山市雅洁源科技股份有限公司 | Apparatus for producing of running water |
-
2015
- 2015-11-19 CN CN201510798851.XA patent/CN105254077A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048838A (en) * | 1989-07-15 | 1991-01-30 | 何庆余 | A kind of method of eliminating excess fluoride in the well water |
| CN102120657A (en) * | 2011-01-28 | 2011-07-13 | 姜雪 | Fluorine removing process and device for drinking water |
| EP2792645A1 (en) * | 2013-04-18 | 2014-10-22 | Gruppo Zilio S.P.A. | Process for removing fluorides from water |
| CN104512972A (en) * | 2013-09-27 | 2015-04-15 | 中国石油化工股份有限公司 | A treating method of fluorine-containing waste water |
| CN103723862A (en) * | 2013-12-31 | 2014-04-16 | 李�杰 | Production method of tap water |
| CN103991984A (en) * | 2014-05-28 | 2014-08-20 | 合肥海润光伏科技有限公司 | Fluoride-contained wastewater treatment method and device |
| CN203890196U (en) * | 2014-05-30 | 2014-10-22 | 资阳海天水务有限公司 | Water purifying and filtering system for tap water pipe network |
| CN104591363A (en) * | 2015-02-13 | 2015-05-06 | 河海大学 | Integrated water purification device for removing fluoride in water |
| CN205133301U (en) * | 2015-11-19 | 2016-04-06 | 佛山市雅洁源科技股份有限公司 | Apparatus for producing of running water |
Non-Patent Citations (1)
| Title |
|---|
| 张鸿等: "自来水处理工艺对溶解相中全氟化合物残留的影响", 《环境科学》 * |
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Application publication date: 20160120 |
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