CN104710035A - Calcium carbonate recovery-based integrated underground water hardness removal device - Google Patents
Calcium carbonate recovery-based integrated underground water hardness removal device Download PDFInfo
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- CN104710035A CN104710035A CN201510078868.8A CN201510078868A CN104710035A CN 104710035 A CN104710035 A CN 104710035A CN 201510078868 A CN201510078868 A CN 201510078868A CN 104710035 A CN104710035 A CN 104710035A
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Abstract
The invention provides a calcium carbonate recovery-based integrated underground water hardness removal device. The device comprises a shell (6) as well as a water inlet unit (1) a calcium carbonate enrichment recovery unit (2), a gas-water combined backwashing unit (3), a filter unit (4) and a water outlet unit (5), which are arranged in the shell in sequence from bottom to top. The device is compact in structure, small in floor space, convenient to use, flexible in operation and wide in application range, has the advantages of preferably ensuring the removal effect of the total hardness in the underground water and the integral effluent quality and effectively collecting the calcium carbonate separated out in the hardness removal process, and has relatively good popularization and application prospect.
Description
Technical field
The invention belongs to field of water treatment equipment, particularly a kind of integrated underground water of recyclable calcium carbonate is except hardness device.
Background technology
Much higher hard or too lowly all can affect our HUMAN HEALTH in water, also can make troubles to daily life simultaneously.Such as, when washing with hard water can and soap response produce infusible precipitate, except affecting washing effect, clothes fiber also can be made to harden become fragile fragile, can puckery when having a bath wash hair with hard water.In existing " drinking water sanitary standard " (GB5749-2006), in regulation tap water, total hardness content should lower than 450mg/L (with CaCO
3meter).
Calcium ions and magnesium ions at present in the hardness minimizing technology of drinking water treatment field comparative maturity is utilize the precipitator method to make a return journey to dewater, and the problems such as the precipitin reaction time needed for the medicaments such as calcium hydroxide usually used, sodium hydroxide, sodium carbonate is long, reaction is carried out not thoroughly, calcium ions and magnesium ions residual concentration height, the pH of product water also can be caused significantly to raise.Occur that some new underground water removes the exploitation of hardness medicament (201310336486.1) and device (201310336448.6) for the problems referred to above, although achieve the efficient removal of total hardness, there is the problem of follow-up waste treatment difficulty.Therefore need to develop except hardness device for Novel underground water, with realize less except hardness added amount of chemical condition under remove in water to greatest extent and cause hardness ions, and throw outs such as calcium carbonate in effective recycling treating processes.
Summary of the invention
Goal of the invention: the object of the present invention is to provide that a kind of floor space is little, cost is low, working cost is low, safety and the Novel underground water of recyclable part calcium carbonate is except hardness device.
Technical scheme: a kind of integrated underground water reclaimed based on calcium carbonate provided by the invention except hardness device, comprise housing and be set in turn in from bottom to top in housing inlet unit, calcium carbonate enriching and recovering unit, combined water and air backwash unit, filtering unit and water unit.
As improvement, described inlet unit comprises water inlet pipe and mixing device; Described water inlet pipe is provided with except hardness adding of agent mouth; The water outlet of water inlet pipe is located at mixing device inside, and the water outlet upper end of water inlet pipe is provided with is inverted circular arc water eliminator.
As further improvement, the backplane pitch of described water eliminator and mixing device is 10-30cm; Water inlet pipe outlet stream speed is 0.8-1.5m/s.
Improve as another kind, described calcium carbonate recovery unit comprises one group of accumulative column be arranged in parallel; The height 0.3-1.5m of described calcium carbonate recovery unit.
As further improvement, the quantity of described one group of accumulative column is more than 2, by 2 layers and arrange above, the outside surface spacing 3-15cm of adjacent accumulative column; Single accumulative column diameter is between 1-5cm; Accumulative column and housing adopt tongued and grooved flanges to be connected; The material of described accumulative column comprises metal, ceramic, attapulgite and stone matter, and its surface can be carried out roughened or be set up outstanding sheet or pointed bulge-structure.
Improve as another kind, described combined water and air backwash unit bottom is perforation plate, and top is the water dispensing board being configured with short-handled filter head, and middle part is provided with back flushing water inlet pipe and inlet pipe.
As further improvement, the aperture of described perforation plate is 3-10cm
2; The hole of described short-handled filter head is 5-10mm.
Improve as another kind, described filtering unit comprises multilayer quartz sand filter media: wherein, and for diameter is the gravel bed of 10-30mm bottom it, thickness is 5-20cm; For particle diameter is the coarse sands layer of 0.9-1.35mm in the middle part of it, thickness is 80-150cm; The fine sand layer of to be particle diameter be at top 0.5-0.8mm, thickness is 30-50cm.
Improve as another kind, described water unit comprises water leg and is located at the rising pipe bottom water leg; Water leg is one group of triangle weir-type water leg, its quantity be 1 and more than, Neighbor Set water trough distance is between 50-150cm; Water leg slope aspect rising pipe (52) direction adjacent with rising pipe (52), gradient 1%-5%.
Improve as another kind, the spacing of described combined water and air backwash unit and calcium carbonate recovery unit is more than 20cm.
Beneficial effect: underground water provided by the invention except hardness apparatus structure is compact, floor space is little, easy to use, flexible operation, applied widely, can while the removal effect ensureing hardness ions in underground water preferably and overall effluent quality, the throw outs such as effective recycling calcium carbonate, have good popularizing application prospect.
Specifically, the present invention has following outstanding advantage relative to prior art:
(1) device provided by the present invention can the settling such as partially recycled calcium carbonate.The present invention is based on except in hardness process form sedimentary characteristic, novelty in device front end, calcium carbonate recovery unit is set, and by parameter optimization can to realize in treating processes form sedimentary portion collection, be beneficial to follow-up use.In addition, because throw out is utilized by portion collection at recovery unit, cause the throw out quantity entering subsequent filter unit obviously to reduce, thus improve the treatment effect of filtering unit and overall effluent quality, and filtering unit recoil frequency can be reduced, increase producing water ratio.
(2) inlet unit of this device is according to the characteristic except hardness reaction process, eliminates static mixer, and the waterpower hybrid mode adopting cost lower, thus both ensure that the normal operation of device, again reduce the cost of device.
(3) this device is provided with quartz sand combination filtering layer.The present invention, according to the upward flow feature of device, utilizes the retaining of each filtering layer, water environment capacity fully, efficiently, thus reaches both effective guarantee operating performances, again significant prolongation backwashing period, thus reduces the object of back flushing frequency and water consumption rate.
(4) this device have employed combined water and air backwash device innovatively in upward flow filtration, thus significantly improves back flushing efficiency, reduces the wastewater flow rate in backwash process, for the normal operation of technique creates condition; And this kind of combined water and air backwash mode also can be applied in other upward flow treating processes, improve the suitability of upward flow filtration mode.
In combined water and air backwash unit of the present invention, the setting of filter is different from common filter gap size, and this is arranged according to except throw out characteristic in hardness process, can the prolonged application of effective guarantee device.
Accompanying drawing explanation
Fig. 1 the present invention is based on integrated underground water that calcium carbonate reclaims except the structural representation of hardness device.
Embodiment
Below in conjunction with accompanying drawing, the integrated underground water that the present invention is based on calcium carbonate recovery is further illustrated except hardness device is made.
The integrated underground water reclaimed based on calcium carbonate removes hardness device, see Fig. 1, comprise housing 6 and be set in turn in from bottom to top in housing 6 inlet unit 1, calcium carbonate enriching and recovering unit 2, combined water and air backwash unit 3, filtering unit 4 and water unit 5; Inlet unit 1 comprises water inlet pipe 11 and mixing device 12; Water inlet pipe 11 is provided with except hardness adding of agent mouth 13; The water outlet of water inlet pipe 11 is located at mixing device 12 inside, and the water outlet upper end of water inlet pipe 11 is provided with is inverted circular arc water eliminator 14; Calcium carbonate recovery unit 2 comprises one group of accumulative column be arranged in parallel 21, the outside surface spacing 3-15cm of adjacent accumulative column 21; Single accumulative column 21 diameter is between 1-5cm; Accumulative column 21 adopts tongued and grooved flanges to be connected with housing 6; The material of accumulative column 21 comprises metal, ceramic, attapulgite and stone matter, and its surface can be carried out roughened or be set up outstanding sheet or pointed structures; Be perforation plate 31 bottom combined water and air backwash unit 3, top is the water dispensing board 33 being configured with short-handled filter head 32, and middle part is provided with back flushing water inlet pipe 34 and inlet pipe 35; Filtering unit 4 comprises multilayer quartz sand filter media, is the gravel bed 41 that diameter is 10-30mm bottom it, the coarse sands layer 42 of to be particle diameter be at middle part 0.9-1.35mm, the fine sand layer 43 of to be particle diameter be at top 0.5-0.8mm; Water unit 5 comprises water leg 51 and is located at the rising pipe 52 bottom water leg 51; Water unit 5 comprises water leg 51 and is located at the rising pipe 52 bottom water leg 51; Water leg 51 is one group of triangle weir-type water leg, its quantity be 1 and more than, Neighbor Set tank 51 spacing is between 50-150cm; Water leg slope aspect rising pipe 52 direction adjacent with rising pipe 52, gradient 1%-5%.
For verifying the usefulness of this underground water except hardness device, in the usefulness checking that Zoucheng City of Shandong Province water factory is correlated with.The water quality situation of the former water of duration of test is as shown in table 1.
Table 1 raw water quality parameter detecting result
By adopting different optimum configurations, checking water treatment efficiency, this plant running parameter is in table 2.
Table 2 operating parameter
Water quality after check processing, the results are shown in 3.
Table 3 processes effluent quality parameter detecting result
Claims (10)
1. the integrated underground water reclaimed based on calcium carbonate except a hardness device, is characterized in that: comprise housing (6) and be set in turn in from bottom to top in housing (6) inlet unit (1), calcium carbonate enriching and recovering unit (2), combined water and air backwash unit (3), filtering unit (4) and water unit (5).
2. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 1 is except hardness device, it is characterized in that: described inlet unit (1) comprises water inlet pipe (11) and mixing device (12); Described water inlet pipe (11) is provided with except hardness adding of agent mouth (13); The water outlet of water inlet pipe (11) is located at mixing device (12) inside, and the water outlet upper end of water inlet pipe (11) is provided with is inverted circular arc water eliminator (14).
3. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 2 is except hardness device, it is characterized in that: described water eliminator (14) and mixing device (12) backplane pitch are 10-30cm; Water inlet pipe (11) outlet stream speed is 0.8-1.5m/s.
4. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 1 is except hardness device, it is characterized in that: described calcium carbonate recovery unit (2) comprises one group of accumulative column be arranged in parallel (21); The height 0.3-1.5m of described calcium carbonate recovery unit (2).
5. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 4 is except hardness device, it is characterized in that: the quantity of described one group of accumulative column (21) is more than 2, by 2 layers and arrange above, the outside surface spacing 3-15cm of adjacent accumulative column (21); Single accumulative column (21) diameter is between 1-5cm; Accumulative column (21) adopts tongued and grooved flanges to be connected with housing (6); The material of described accumulative column (21) comprises metal, ceramic, attapulgite and stone matter, and its surface can be carried out roughened or be set up outstanding sheet or pointed bulge-structure.
6. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 1 is except hardness device, it is characterized in that: described combined water and air backwash unit (3) bottom is perforation plate (31), top is for being configured with the water dispensing board (33) of short-handled filter head (32), and middle part is provided with back flushing water inlet pipe (34) and inlet pipe (35).
7. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 6 is except hardness device, it is characterized in that: the aperture of described perforation plate (31) is 3-10cm
2; The hole of described short-handled filter head (32) is 5-10mm.
8. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 1 is except hardness device, it is characterized in that: described filtering unit (4) comprises multilayer quartz sand filter media: wherein, be the gravel bed (41) that diameter is 10-30mm bottom it, thickness is 5-20cm; Be the coarse sands layer (42) that particle diameter is 0.9-1.35mm in the middle part of it, thickness is 80-150cm; The fine sand layer (43) of to be particle diameter be at top 0.5-0.8mm, thickness is 30-50cm.
9. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 1 is except hardness device, it is characterized in that: described water unit (5) comprises water leg (51) and is located at the rising pipe (52) of water leg (51) bottom; Water leg (51) is one group of triangle weir-type water leg, its quantity be 1 and more than, Neighbor Set tank (51) spacing is between 50-150cm; Water leg slope aspect rising pipe (52) direction adjacent with rising pipe (52), gradient 1%-5%.
10. a kind of integrated underground water reclaimed based on calcium carbonate according to claim 1 is except hardness device, it is characterized in that: described combined water and air backwash unit (3) is more than 20cm with the spacing of calcium carbonate recovery unit (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510078868.8A CN104710035B (en) | 2015-02-13 | 2015-02-13 | A kind of integrated subsoil water reclaimed based on calcium carbonate is except hardness device |
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|---|---|---|---|
| CN201510078868.8A CN104710035B (en) | 2015-02-13 | 2015-02-13 | A kind of integrated subsoil water reclaimed based on calcium carbonate is except hardness device |
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| CN104710035B CN104710035B (en) | 2016-10-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110163031A1 (en) * | 2007-05-25 | 2011-07-07 | Camp Dresser & Mckee, Inc. | Method and apparatus for recovery of water containing silica |
| CN103359835A (en) * | 2013-08-05 | 2013-10-23 | 河海大学 | Special medicament for removing hardness ions in underground water and application thereof |
| CN103880215A (en) * | 2014-03-24 | 2014-06-25 | 河海大学 | Integral water purifying device for removing hardness of underground water |
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2015
- 2015-02-13 CN CN201510078868.8A patent/CN104710035B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110163031A1 (en) * | 2007-05-25 | 2011-07-07 | Camp Dresser & Mckee, Inc. | Method and apparatus for recovery of water containing silica |
| CN103359835A (en) * | 2013-08-05 | 2013-10-23 | 河海大学 | Special medicament for removing hardness ions in underground water and application thereof |
| CN103880215A (en) * | 2014-03-24 | 2014-06-25 | 河海大学 | Integral water purifying device for removing hardness of underground water |
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