CN103880215A - Integral water purifying device for removing hardness of underground water - Google Patents
Integral water purifying device for removing hardness of underground water Download PDFInfo
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- CN103880215A CN103880215A CN201410110664.3A CN201410110664A CN103880215A CN 103880215 A CN103880215 A CN 103880215A CN 201410110664 A CN201410110664 A CN 201410110664A CN 103880215 A CN103880215 A CN 103880215A
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Abstract
The invention provides an integral water purifying device for removing hardness of underground water. The integral water purifying device comprises a water inlet unit (3), an agent adding unit (4), a main body (1) and a cone-shaped body (2) inverted in the main body (1), wherein the vertex of the cone-shaped body (2) is connected with the water inlet unit (3), and the bottom surface of the cone-shaped body (2) is open; a primary reaction unit (21) and a micro-expansion rough filtering unit (22) are arranged in sequence on the cone-shaped body (2) from bottom to top; a water distribution layer (11), a deep filtering unit (12), a water collecting region (13) and a disinfecting unit (14) are arranged in sequence on the main body (1) from top to bottom; the agent adding unit (4) is arranged on the water inlet unit (3). The device is designed according to the reaction process and characteristics of the conventional agent for removing hardness of underground water, and has the advantages of rapid hardness removing process, easiness in operation, low running cost, good effluent quality and the like. Meanwhile, the device has the advantage of small floor area.
Description
Technical field
The invention belongs to drinking water treatment equipment field, particularly a kind of integral water purifying device of removing for ground water hardness.
Background technology
In water, much higher hard or too low our HUMAN HEALTH that all can affect also can be made troubles to daily life simultaneously.For example, while washing with hard water can and soap response produce infusible precipitate, except affecting washing effect, also can make clothes fiber harden to become fragile fragile, having a bath while washing hair with hard water can puckery.Existing " drinking water sanitary standard " total hardness content should be lower than 450mg/L(in CaCO3 in regulation tap water in (GB5749-2006)).
Be at present the calcium ions and magnesium ions in utilizing the precipitator method to make a return journey to dewater in the hardness removal method of drinking water treatment field comparative maturity, conventionally use the medicament precipitated calcium magnesium ions such as calcium hydroxide, sodium hydroxide, sodium carbonate.But there is the problems such as precipitin reaction time length, reaction are carried out thoroughly, calcium ions and magnesium ions residual concentration height in the precipitator method, also can cause the pH of product water significantly to raise.In addition, because generated contents of precipitate is higher, cause filtering unit back flushing frequent, significantly increased from the water water yield and production cost.How according to the problems referred to above, the fundamental characteristics of association reaction, designs and a kind ofly novelly will be conducive to the solution of ground water hardness problem except hardness equipment and device.
Summary of the invention
Goal of the invention: the object of the invention is according to the existing response characteristic except hardness medicament, provide that a kind of effluent quality is safe, simple to operate, working cost is low, take up an area the little integral water purifying device of removing for ground water hardness.
Technical scheme: the invention provides a kind of integral water purifying device of removing for ground water hardness, comprise into water unit, adding of agent unit, main body and be inverted in the cone-shaped body in main body, the summit of described cone-shaped body with intake that unit is connected, bottom surface opening; Described cone-shaped body is provided with initial reaction unit and microdilatancy coarse filtration unit from bottom to top successively, and described main body is provided with water distribution layer, depth type filtration unit, catchment area and disinfection unit from top to bottom successively; Described adding of agent unit is located on water unit.
As improvement, the cone angle of described cone-shaped body is 20-50 °.
Improve as another kind, the medicament that medicament addition device adds is sodium hydroxide, and dosage is 30-150mg/L.Do
For another kind improves, the hydraulic detention time in initial reaction unit is 0.1-0.5min.
Improve as another kind, fill the pottery sand of particle diameter below 0.5mm in expansion coarse filtration unit, the thickness of expansion coarse filtration unit is 0.5-2.0m; Expansion coarse filtration unit turgidity is at 5-15%.
Improve as another kind, the quartz sand that particle diameter is 0.85-1.35 is filled in described depth type filtration unit, and the thickness of depth type filtration unit is 0.8-1.2m; The filtering velocity of depth type filtration unit is 8-12m/h.
Improve as another kind, the short-handled filter head that is provided for catchmenting in described catchment area, the height of catchment area is 0.2-0.5m.
Improve as another kind, in disinfection unit, hydraulic detention time is 5-10min.
Beneficial effect: reaction process and characteristic that the integral water purifying device of removing for ground water hardness provided by the invention removes hardness medicament according to traditional underground water design, have except advantages such as hardness process are rapid, simple to operate, working cost is low, effluent quality is good, there is the advantage that floor space is little simultaneously.
Device provided by the present invention is according to fundamental characteristics and follow-up unit except hardness reaction that early stage, a large amount of institutes drew, the requirement of influent quality to be arranged by the setting of initial reaction unit, significantly improve the process that reaction is carried out, met the demand of subsequent disposal unit to influent quality simultaneously, be conducive to the normal operation of subsequent disposal, and finally ensure effluent quality.
Particularly, the microdilatancy coarse filtration unit of setting of the present invention has selected particle diameter compared with pottery sand (general ceramic grain filter particle diameter used is between 0.5-5mm) little and that cannot use in general filtration procedure, thereby has promoted effective utilization of resource; More importantly, in the solution of the present invention, pottery sand has crucial effect.Because particle diameter own is less and proportion is less, can under ascending current effect, realize relatively easily microdilatancy or micro-suspension; Simultaneously owing to having compared with concrete dynamic modulus, can effectively catching, the throw out that generates of absorption hardness removal process, and throw out is constantly adsorbed in around self; By the faint collision between pottery sand and self vibration, the throw out adhering to and self component are combined, and in use constantly grow up, promoted the increase of thickness of filter bed, do not need to carry out backwash process, avoided needing in traditional Interception process the problem of regular back flushing.The microdilatancy coarse filtration unit of setting of the present invention adopts inverted cone-shaped body reactor types, the pottery layer of sand degrees of expansion of different heights has certain difference, higher, the less not even expansion of top expansion of expanding in bottom, this and water (flow) direction match, thereby can effective guarantee rejection effect, for the processing of follow-up unit provides good condition.
The present invention adopts sodium hydroxide as except hardness medicament, its comparatively faster speed of response and the relatively less feature of the throw out that forms determined that can subsequent technique normally move, be the medicament corresponding with subsequent technique form.And sodium hydroxide except hardness cost relatively low, thereby be conducive to reduce running cost.
The depth type filtration unit of setting of the present invention can guarantee that effluent quality meets the demands, and because particle content in water inlet is relatively low, thereby there is the longer recoil cycle, generally can reach more than 5-7 days, be significantly higher than the 24-48h of general filtration procedure, obviously reduced the water consumption of back flushing process.
This device, after later stage steady running, is regularly removed the pottery sand that is coated with a large amount of calcium carbonate, magnesium hydroxide and so on dirt settling from system, can further develop and utilize, and saving resource, and avoided secondary pollution problem.
The disinfection unit of setting of the present invention also can double as the backwash water storage pool of depth type filtration unit, miniature clean water basin use, and has further saved space.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention is directed to the integral water purifying device of ground water hardness removal.
Embodiment
According to following embodiment, the present invention may be better understood.But, those skilled in the art will readily understand, the described concrete material proportion of embodiment, processing condition and result thereof be only for the present invention is described, and should also can not limit the present invention described in detail in claims.
The integral water purifying device of removing for ground water hardness, comprises into water unit 3, adding of agent unit 4, main body 1 and be inverted in the cone-shaped body 2 in main body 1, the summit of cone-shaped body 2 with intake that unit 3 is connected, bottom surface opening; Cone-shaped body 2 is provided with initial reaction unit 21 and microdilatancy coarse filtration unit 22 from bottom to top successively, and main body 1 is provided with water distribution layer 11, depth type filtration unit 12, catchment area 13 and disinfection unit 14 from top to bottom successively; Adding of agent unit 4 is located on water unit 3.The pottery sand of the interior filling particle diameter in expansion coarse filtration unit 22 below 0.5mm, states depth type filtration unit 12 and fills the quartz sand that particle diameter is 0.85-1.35.The short-handled filter head that is provided for catchmenting in catchment area 13.
Adopt different technical parameters, in table 1, utilize said apparatus to process underground water, method is as follows: pending water is passed through in adding of agent unit 4 input cone bodies 1, in the interior reaction in initial reaction unit 21 by water inlet unit 3, medicament, enter again after the interior preliminary filtration in microdilatancy coarse filtration unit 22, enter water distribution layer 11, then penetration depth filtering unit 12, filter, after catchment area 13 and disinfection unit processing, water after must processing.
The processing parameter of table 1 device operation
Table 2 device operation treatment effect
? | Hardness | pH | Opacity/NTU | Water temperature/DEG C |
Water inlet | 465 | 7.65 | 0.45-0.52 | 16-18 |
|
216 | 8.12 | 0.15-0.26 | 16-18 |
|
315 | 7.89 | 0.12-0.23 | 16-18 |
|
169 | 8.32 | 0.12-0.24 | 16-18 |
Device steady running is after 3 months, and microdilatancy thickness of filter bed increases 15-20cm left and right.
Claims (9)
1. an integral water purifying device of removing for ground water hardness, it is characterized in that: comprise into water unit (3), adding of agent unit (4), main body (1) and be inverted in the cone-shaped body (2) in main body (1), the summit of described cone-shaped body (2) is connected with water inlet unit (3), bottom surface opening; Described cone-shaped body (2) is provided with initial reaction unit (21) and microdilatancy coarse filtration unit (22) from bottom to top successively, and described main body (1) is provided with water distribution layer (11), depth type filtration unit (12), catchment area (13) and disinfection unit (14) from top to bottom successively; Described adding of agent unit (4) is located on water unit (3).
2. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: the cone angle of described cone-shaped body (2) is 20-50 °.
3. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: the medicament that medicament addition device (4) adds is sodium hydroxide, and dosage is 30-150mg/L.
4. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: the hydraulic detention time in initial reaction unit (21) is 0.1-0.5min.
5. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: in microdilatancy coarse filtration unit (22), fill the pottery sand of particle diameter below 0.5mm, the thickness of microdilatancy coarse filtration unit (22) is 0.5-2.0m; Microdilatancy coarse filtration unit (22) turgidity is at 5-15%.
6. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: the quartz sand that particle diameter is 0.85-1.35 is filled in described depth type filtration unit (12), and the thickness of depth type filtration unit (12) is 0.8-1.2m; The filtering velocity of depth type filtration unit (12) is 8-12m/h.
7. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: the short-handled filter head that is provided for catchmenting in described catchment area (13), the height of catchment area (13) is 0.2-0.5m.
8. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: the interior hydraulic detention time of disinfection unit (14) is 5-10min.
9. a kind of integral water purifying device of removing for ground water hardness according to claim 1, is characterized in that: described cone-shaped body (2) bottom edge is provided with annular spilling water baffle plate (5).
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104478126A (en) * | 2014-12-02 | 2015-04-01 | 河海大学 | Novel combined hardness remover |
CN104628189A (en) * | 2015-02-13 | 2015-05-20 | 河海大学 | Combined water treatment method for synchronously removing sulfate, hardness and total dissolved solids |
CN104710035A (en) * | 2015-02-13 | 2015-06-17 | 河海大学 | Calcium carbonate recovery-based integrated underground water hardness removal device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101955276A (en) * | 2010-09-20 | 2011-01-26 | 河海大学 | Contact filtration-MIEX resin sewage deep treatment method |
CN101973657A (en) * | 2010-10-27 | 2011-02-16 | 河海大学 | Processing device and processing method for removing nitrate from ground water |
CN103395896A (en) * | 2013-08-05 | 2013-11-20 | 河海大学 | Water purification equipment of special medicament for removing hardness ions in underground water |
-
2014
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101955276A (en) * | 2010-09-20 | 2011-01-26 | 河海大学 | Contact filtration-MIEX resin sewage deep treatment method |
CN101973657A (en) * | 2010-10-27 | 2011-02-16 | 河海大学 | Processing device and processing method for removing nitrate from ground water |
CN103395896A (en) * | 2013-08-05 | 2013-11-20 | 河海大学 | Water purification equipment of special medicament for removing hardness ions in underground water |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104478126A (en) * | 2014-12-02 | 2015-04-01 | 河海大学 | Novel combined hardness remover |
CN104478126B (en) * | 2014-12-02 | 2016-03-16 | 河海大学 | A kind of built-up type is except hardness device |
CN104628189A (en) * | 2015-02-13 | 2015-05-20 | 河海大学 | Combined water treatment method for synchronously removing sulfate, hardness and total dissolved solids |
CN104710035A (en) * | 2015-02-13 | 2015-06-17 | 河海大学 | Calcium carbonate recovery-based integrated underground water hardness removal device |
CN104628189B (en) * | 2015-02-13 | 2016-08-31 | 河海大学 | The Combined water processing method of removing sulfate, hardness and total dissolved solidss is gone in a kind of synchronization |
CN104710035B (en) * | 2015-02-13 | 2016-10-26 | 河海大学 | A kind of integrated subsoil water reclaimed based on calcium carbonate is except hardness device |
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