CN102774993B - Water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water - Google Patents
Water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water Download PDFInfo
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- CN102774993B CN102774993B CN201210309544.7A CN201210309544A CN102774993B CN 102774993 B CN102774993 B CN 102774993B CN 201210309544 A CN201210309544 A CN 201210309544A CN 102774993 B CN102774993 B CN 102774993B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 229910001868 water Inorganic materials 0.000 title claims abstract description 113
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 30
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 30
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000011737 fluorine Substances 0.000 title claims abstract description 27
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 27
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 41
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000006004 Quartz sand Substances 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 230000001590 oxidative effect Effects 0.000 claims abstract description 33
- 238000005273 aeration Methods 0.000 claims abstract description 25
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000004062 sedimentation Methods 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims description 35
- 239000000706 filtrate Substances 0.000 claims description 12
- 230000001954 sterilising effect Effects 0.000 claims description 12
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000005660 chlorination reaction Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 241000216843 Ursus arctos horribilis Species 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000011572 manganese Substances 0.000 abstract description 22
- 229910052748 manganese Inorganic materials 0.000 abstract description 19
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003651 drinking water Substances 0.000 abstract description 5
- 235000020188 drinking water Nutrition 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract 3
- 230000029219 regulation of pH Effects 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000036284 oxygen consumption Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- NYOGMBUMDPBEJK-UHFFFAOYSA-N arsanylidynemanganese Chemical compound [As]#[Mn] NYOGMBUMDPBEJK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000013327 media filtration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000011272 standard treatment Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Removal Of Specific Substances (AREA)
Abstract
The invention belongs to the fields of the water supply and sewage treatment devices, and provides a water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water. The water treatment device consists of a partition oxidizing reaction tank (1), an inclined tube sedimentation tank (2), an upward flow quartz sand rough filter material filter tank (3), a downward flow multi-medium filtering tank (4) and a disinfection and water clarifying tank (5) which are sequentially communicated. The water treatment method adopts such a process flow of aeration, partition oxidizing reaction, inclined tube sedimentation, upward flow filtering, aeration, and downward flow filtering in sequence, and comprises the steps of firstly removing interference of ferrum to manganese and then removing the manganese; and feeding a flocculant in the partition oxidizing reaction tank and feeding a pH regulation agent into a pump to be capable of primarily removing fluorine and arsenic, carrying out two-stage filtering to be capable of ensuring that the water after treatment can achieve the standard. The water treatment device and method can remove the excessive ferrum, manganese, fluorine and arsenic substances in the same one device, and the treatment effect is superior to current sanitary standard of domestic drinking water in China.
Description
Technical field
The invention belongs to feedwater and waste disposal plant field, further refer to a kind of for water treatment device and method that in underground water, iron, manganese, fluorine, arsenic exceed standard.
Background technology
Underground water is the important component part of water resources.Along with the raising day by day of people's people life, the development of town development, groundwater resource receive people's especially concern.Underground water often contains too high iron, manganese, and some regional underground water also contains fluorine and arsenic has seriously affected the use of people for underground water.
Regulation in China < < drinking water sanitary standard > > (GB5749-2006): iron < 0.3mg/L, manganese < 0.1mg/L, content of fluoride must not surpass 1.0mg/L, and arsenic content must not surpass 0.05mg/L.When underground water surpasses above-mentioned standard, just should process.< < drinking water sanitary standard > > (GB5749-2006) enforcement in 1 day July in 2007 that China is new, on July 1st, 2012 is large time limit, technology and the device of the applicable new standard of research and development, to instruct the upgrading transformation of tap water significant.
In technology in the past, generally adopt natural oxidation method to remove iron, contact oxidation method demanganization.In underground water, iron, manganese exceed standard, and mainly exist iron to exceed standard or iron and the manganese two kinds of situations that simultaneously exceed standard, and generally all utilize principle of uniformity, and the iron, the manganese that are about to dissolved state are oxidized to undissolved ferric iron or tetravalence manganese, then through filtering the object that reaches removal.The chemical reaction of iron and manganese, because of the impact of environmental factors, alters a great deal, and the redox potential of iron is lower than manganese, and the speed of oxidation is fast compared with manganese, so iron is than the easy removal of manganese.Demanganization technology becomes difficult point.And fluorine, arsenic content overproof in underground water generally adopt adsorption filtration method, coagulant sedimentation, embrane method etc.In adsorption filtration method, take activated alumina as sorbent material, its absorption filtering velocity are low, generally can only reach 2 ~ 3m/h, continuous operating time is short, limited the performance of capacity of equipment, and embrane method is expensive, and operation easier is large, and energy consumption is high.
As: number of patent application 201110404135 discloses a kind of method that film combination process is removed ferrimanganic in water body, comprises water body is carried out to aeration oxidation, then the water through aeration oxidation is filtered in delivering to continuous membrane filter.Main flow process is:------water collecting basin---continuous membrane filter---produces water tank to coagulating sedimentation in aeration oxidation.
Patent application 200810021420 discloses a kind of the exceed standard removal method of ferrimanganic of underground sea water, by ozonation aerated processing, makes Fe and Mn be oxidized to water-fast precipitation, adsorption filtration; Again through the adsorption filtration of overdone matter manganese sand.Major equipment foam separator (1), Venturi-type Liqiud-gas mixing device (3), sand-bed filter (4) and ripe matter filtration with manganese sand device.
Above technology all has certain removal effect to iron, manganese, fluorine or arsenic, but also there is no a kind of apparatus and method that can effectively remove these several materials that exceed standard simultaneously at present.
Summary of the invention
The technical problem that purport of the present invention will solve is, for the shortcoming existing in treatment technology that exceeds standard of iron, manganese, fluorine, arsenic in underground water in the past, improved, and improves a kind ofly can remove the exceed standard treatment unit of material of iron in underground water, manganese, fluorine, arsenic simultaneously.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of for water treatment device that in underground water, iron, manganese, fluorine and arsenic exceed standard, as depicted in figs. 1 and 2, comprise tube settler and sterilization and clean water basin, by dividing plate oxidizing reaction pond, tube settler, upward flow quartz sand coarse media filter tank, be communicated with and form successively with clean water basin to stream multimedium filter tank, sterilization down;
The top in described dividing plate oxidizing reaction pond is provided with grizzly bar grid aeration tower and one-level shower, and top is provided with flocculant concentration pump and adjusts pH agent to add pump; Inside is provided with reaction dividing plate;
The bottom in described upward flow quartz sand coarse media filter tank is provided with filter plate filter water distribution system and water distributing station, and water distributing station is communicated with the water leg of tube settler by upward flow quartz sand coarse media filter tank water inlet pipe; The top of filter plate filter water distribution system is provided with the coarse filtration bed of material; The top in upward flow quartz sand coarse media filter tank is provided with effluent trough;
One-level shower, dividing plate oxidizing reaction pond, tube settler and upward flow quartz sand coarse media filter tank form one-level aeration and filtering system jointly;
The described lower top to stream multimedium filter tank is provided with secondary shower, and secondary shower is communicated with the effluent trough at top, upward flow quartz sand coarse media filter tank by pipeline; Secondary shower and lower to stream multimedium filter tank composition secondary aeration and filtering system; Bottom is also provided with filter plate filter water distribution system and water distributing station, and the top of filter plate filter water distribution system is provided with multimedium filter material layer; Near sterilization and the sidewall below of clean water basin, be provided with posticum.
In described tube settler, be provided with inclined tube, near inclined tube top, be provided with water leg; Sidewall near dividing plate oxidizing reaction pond is provided with prosopyle.
Described sterilization and clean water basin top are provided with chlorination facility, and afterbody is provided with rising pipe.
Before described dividing plate oxidizing reaction pond, be provided with drowned pump, drowned pump is communicated with the one-level shower of top, dividing plate oxidizing reaction pond by pipeline.
A kind of for water treatment method that in underground water, iron, manganese, fluorine and arsenic exceed standard, use above-mentioned water treating equipment, adopt aeration, dividing plate oxidizing reaction, tube settling, upward flow filtration, aeration, lower to flowing through the finally pasteurised treatment scheme of filter, the pH that controls dividing plate oxidizing reaction pond is 6 ~ 8, and polymerize aluminum chloride is pressed F
-: Al
3+the mass ratio of=1:7 ~ 10 adds; Control the sedimentation time 4 h ~ 5h of tube settler; The particle diameter of filter medium of controlling upward flow quartz sand coarse media filter tank is 0.5 mm ~ 2.0mm, filtering velocity 8 m/h ~ 10m/h, filtration cycle 9h ~ 12h; Under control to stream multimedium filter tank multimedium particle diameter of filter medium 1.5 mm ~ 1.8mm, filtering velocity 10 m/h ~ 12m/h, filtration cycle 9h ~ 12h; Wherein multimedium filtrate is for adopting haydite, quartz sand, gac according to haydite: quartz sand: the formulated multimedium filtrate of volume ratio of gac=1:2.5 ~ 3.5:1.5 ~ 2.5.
Below the present invention will be further explained:
Principle of the present invention is: in underground water, iron, manganese coexist, and content is when higher, and the redox potential of iron is lower than manganese, and ferrous iron just becomes reductive agent to value Mn (trivalent or tetravalence manganese), and therefore, ferrous iron can hinder the oxidation of manganese.Iron content underground water, generally not containing dissolved oxygen, for making airborne oxygen energy soluble in water, and is removed the carbonic acid gas in water, and to improve the pH value of water, the present invention is provided with shower, and water is fully contacted with air.For deironing effectively, also need to make ferrous iron and dissolved oxygen in water to have the sufficient reaction times, so that ferrous iron can be oxidized to ferric iron as best one can, be provided with and make water have the dividing plate oxidizing reaction pond of enough residence time, the reaction times is 30min left and right.
One-level shower, dividing plate oxidizing reaction pond, tube settler and upward flow quartz sand coarse media filter tank form first step aeration and filtering system jointly, first except the ferrous iron (being first deironing) in water body.In dividing plate oxidizing reaction pond, add flocculation agent, fluorine, arsenic are tentatively removed simultaneously.
Then secondary shower and lower to stream multimedium filter tank composition second stage aeration and filtering system, by manganese oxidation, removes manganese in water (get rid of the interference of iron after again demanganization).Adopt multimedium media filtration further to remove fluorine, arsenic and the manganese in water simultaneously.Multimedium filtrate can be commercially available filtrate, if model is that SH-12(Langfang City Shi Hua environmental protection equipment company limited produces), also can be the filtrate of the removing of iron and manganese arsenic prepared voluntarily, adopt commercially available haydite, quartz sand, gac according to haydite: quartz sand: the volume ratio of gac=1:2.5 ~ 3.5:1.5 ~ 2.5 is formulated, and wherein configuration proportion is preferably haydite: quartz sand: the volume ratio of gac=1:3:2.Preferably adopt the multimedium filtrate of preparation voluntarily, when removing of iron and manganese is further removed, remarkable to the removal effect of arsenic.
Compared with prior art, the invention has the beneficial effects as follows:
1. the present invention adopts the flow process of " aeration → dividing plate oxidizing reaction → tube settling → upward flow filtration → aeration → under to flowing through filter ", first deironing eliminating iron to the interference of demanganization after, can obtain the effect of deferrization and demanganization.
2. the present invention adopts in dividing plate oxidizing reaction pond and adds flocculation agent, can tentatively remove fluorine, arsenic, then after two-stage filtration, can guarantee up to standard.
3. the material that the present invention can exceed standard iron, manganese, fluorine, arsenic is removed in same device.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Fig. 1 is a kind of two dimensional structure schematic diagram for the water treatment device that in underground water, iron, manganese, fluorine and arsenic exceed standard of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
In the drawings:
1-dividing plate oxidizing reaction pond; 2-tube settler; 3-upward flow quartz sand coarse media filter tank; Under 4-to stream multimedium filter tank; 5-sterilization and clean water basin; 6-drowned pump; 7-one-level shower; 8-grizzly bar grid aeration tower; 9-flocculant concentration pump; 10-reacts dividing plate; 11-prosopyle; 12-inclined tube; 13-upward flow quartz sand coarse media filter tank water inlet pipe; 14-filter plate filter water distribution system; The 15-quartz sand coarse filtration bed of material; 16-effluent trough; 17-secondary shower; 18-multimedium filter material layer; 19-posticum; 20-chlorination facility; 21-rising pipe; 22-adjusts pH agent to add pump; 23-water distributing station; 24-water leg.
Embodiment
For a better understanding of the present invention, below in conjunction with embodiment, the present invention is done further and described in detail.
embodiment 1:
From Fig. 1 and Fig. 2, a kind of for water treatment device that in underground water, iron, manganese, fluorine and arsenic exceed standard, comprise tube settler 2 and sterilization and clean water basin 5, by dividing plate oxidizing reaction pond 1, tube settler 2, upward flow quartz sand coarse media filter tank 3, be communicated with and form successively with clean water basin 5 to stream multimedium filter tank 4, sterilization down;
The top in described dividing plate oxidizing reaction pond 1 is provided with grizzly bar grid aeration tower 8 and one-level shower 7, and top is provided with flocculant concentration pump 9 and adjusts pH agent to add pump 22; Inside is provided with reaction dividing plate 10;
In described tube settler 2, be provided with inclined tube 12, near inclined tube 12 tops, be provided with water leg 24; Sidewall near dividing plate oxidizing reaction pond 1 is provided with prosopyle 11;
The bottom in described upward flow quartz sand coarse media filter tank 3 is provided with filter plate filter water distribution system 14 and water distributing station 23, water distributing station 23 is communicated with the water leg 24 of tube settler 2 by upward flow quartz sand coarse media filter tank water inlet pipe 13, water is introduced to the water distributing station 23 of its bottom, form upward flow filtration; The top of filter plate filter water distribution system 14 is provided with the coarse filtration bed of material 15; The top in upward flow quartz sand coarse media filter tank 3 is provided with effluent trough 16;
Common one-level aeration and the filtering system (first deironing, simultaneously preliminary fluorine and the arsenic removed) of forming in one-level shower 7, dividing plate oxidizing reaction pond 1, tube settler 2 and upward flow quartz sand coarse media filter tank 3;
The described lower top to stream multimedium filter tank 4 is provided with secondary shower 17, and secondary shower 17 is communicated with the effluent trough 16 at 3 tops, upward flow quartz sand coarse media filter tank by pipeline; Secondary shower 17 and lower secondary aeration and the filtering system (rear demanganization, the degree of depth is removed fluorine, arsenic, manganese simultaneously) of forming to stream multimedium filter tank 4; The top that bottom is also provided with filter plate filter water distribution system 14 and water distributing station 23, filter plate filter water distribution system 14 is provided with multimedium filter material layer 18; Near sterilization and the sidewall below of clean water basin 5, be provided with posticum 19.
Described sterilization and clean water basin 5 tops are provided with chlorination facility 20, and afterbody is provided with rising pipe 21.
Before described dividing plate oxidizing reaction pond 1, be provided with drowned pump 6, drowned pump 6 is communicated with the one-level shower 7 of 1 top, dividing plate oxidizing reaction pond by pipeline.
embodiment 2:
For the water treatment method that in underground water, iron, manganese, fluorine and arsenic exceed standard, use the water treating equipment described in embodiment 1, adopt the flow process of " aeration → dividing plate oxidizing reaction → tube settling → upward flow filtration → aeration → under to flowing through filter " to carry out water treatment:
1, influent quality: PH6.4, NTU(opacity) 60, Fe
2+16.8mg/L, Mn
2+2.5mg/L, F
-2.9mg/L, As0.19mg/L, ammonia nitrogen 6.8mg/L, oxygen-consumption 5.20mg/L.
2, control parameter:
(1) dividing plate oxidizing reaction pond 1
PH=6 ~ 8, polymerize aluminum chloride is pressed F
-: Al
3+the mass ratio of=1:8 adds, reaction times 30min.
(2) tube settler 2
Sedimentation time 4.5h.
(3) upward flow quartz sand coarse media filter tank 3
Particle diameter of filter medium 0.71 ~ 2.0mm, filtering velocity 8 ~ 10m/h, filtration cycle 10h.
(4) under to stream multimedium filter tank 4
Wherein multimedium filtrate is for adopting commercially available haydite, quartz sand, gac according to haydite: the formulated multimedium filtrate of volume ratio of quartz sand: gac=1:3:2.Multimedium particle diameter of filter medium 1.5 ~ 1.8mm, filtering velocity 10 ~ 12m/h, filtration cycle 12h.
3, effluent quality: PH6.9, NTU(opacity) 0.3, Fe
2+0.07mg/L, Mn
2+0.05mg/L, F
-2.9mg/L, As0.19mg/L, ammonia nitrogen 0.2mg/L, oxygen-consumption 2.5mg/L.These indexs are better than the existing drinking water sanitary standard of country.(regulation in China < < drinking water sanitary standard > > (GB5749-2006): iron < 0.3mg/L, manganese < 0.1mg/L, content of fluoride must not surpass 1.0mg/L, and arsenic content must not surpass 0.05mg/L.）
Claims (5)
1. one kind for water treatment device that in underground water, iron, manganese, fluorine and arsenic exceed standard, comprise tube settler (2) and sterilization and clean water basin (5), it is characterized in that, by dividing plate oxidizing reaction pond (1), tube settler (2), upward flow quartz sand coarse media filter tank (3), be communicated with and form successively with clean water basin (5) to stream multimedium filter tank (4), sterilization down;
The top in described dividing plate oxidizing reaction pond (1) is provided with grizzly bar grid aeration tower (8) and one-level shower (7), and top is provided with flocculant concentration pump (9) and adjusts pH agent to add pump (22); Inside is provided with reaction dividing plate (10);
The bottom in described upward flow quartz sand coarse media filter tank (3) is provided with filter plate filter water distribution system (14) and water distributing station (23), and water distributing station (23) is communicated with the water leg (24) of tube settler (2) by upward flow quartz sand coarse media filter tank water inlet pipe (13); The top of filter plate filter water distribution system (14) is provided with the coarse filtration bed of material (15); The top in upward flow quartz sand coarse media filter tank (3) is provided with effluent trough (16);
One-level shower (7), dividing plate oxidizing reaction pond (1), tube settler (2) and upward flow quartz sand coarse media filter tank (3) form one-level aeration and filtering system jointly;
The described lower top to stream multimedium filter tank (4) is provided with secondary shower (17), and secondary shower (17) is communicated with the effluent trough (16) at top, upward flow quartz sand coarse media filter tank (3) by pipeline; Secondary shower (17) and lower to stream multimedium filter tank (4) composition secondary aeration and filtering system; The lower bottom to stream multimedium filter tank (4) is also provided with filter plate filter water distribution system (14) and water distributing station (23), the top of filter plate filter water distribution system (14) is provided with multimedium filter material layer (18), and wherein the multimedium filtrate in multimedium filter material layer (18) is haydite, quartz sand, gac according to haydite: quartz sand: the formulated multimedium filtrate of volume ratio of gac=1:2.5 ~ 3.5:1.5 ~ 2.5; Near sterilization and the sidewall below of clean water basin (5), be provided with posticum (19).
2. a kind ofly according to claim 1 for the water treatment device that in underground water, iron, manganese, fluorine and arsenic exceed standard, it is characterized in that, in described tube settler (2), be provided with inclined tube (12), near inclined tube (12) top, be provided with water leg (24); Sidewall near dividing plate oxidizing reaction pond (1) is provided with prosopyle (11).
3. a kind ofly according to claim 1 for the water treatment device that in underground water, iron, manganese, fluorine and arsenic exceed standard, it is characterized in that, described sterilization and clean water basin (5) top is provided with chlorination facility (20), and afterbody is provided with rising pipe (21).
4. a kind of for water treatment device that in underground water, iron, manganese, fluorine and arsenic exceed standard according to claim 1, it is characterized in that, described dividing plate oxidizing reaction pond (1) is provided with drowned pump (6) before, and drowned pump (6) is communicated with the one-level shower (7) of top, dividing plate oxidizing reaction pond (1) by pipeline.
5. one kind for water treatment method that in underground water, iron, manganese, fluorine and arsenic exceed standard, it is characterized in that, right to use requires the described water treatment device of one of 1-4, adopt aeration, dividing plate oxidizing reaction, tube settling, upward flow filtration, aeration, lower to flowing through the finally pasteurised treatment scheme of filter, the pH that controls dividing plate oxidizing reaction pond (1) is 6 ~ 8, reaction times 25min-35min, polymerize aluminum chloride is pressed F
-: Al
3+the mass ratio of=1:7 ~ 10 adds; Control the sedimentation time 4 h ~ 5h of tube settler (2); The particle diameter of filter medium of controlling upward flow quartz sand coarse media filter tank (3) is 0.5 mm ~ 2.0mm, filtering velocity 8 m/h ~ 10m/h, filtration cycle 9h ~ 12h; Under control to stream multimedium filter tank (4) multimedium particle diameter of filter medium 1.5 mm ~ 1.8mm, filtering velocity 10 m/h ~ 12m/h, filtration cycle 9h ~ 12h; Wherein multimedium filtrate is for adopting haydite, quartz sand, gac according to haydite: quartz sand: the formulated multimedium filtrate of volume ratio of gac=1:2.5 ~ 3.5:1.5 ~ 2.5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309544.7A CN102774993B (en) | 2012-08-28 | 2012-08-28 | Water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309544.7A CN102774993B (en) | 2012-08-28 | 2012-08-28 | Water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water |
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|---|---|
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| CN102774993B true CN102774993B (en) | 2014-04-02 |
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