CN104355434B - A kind of sewage water treatment method and device - Google Patents
A kind of sewage water treatment method and device Download PDFInfo
- Publication number
- CN104355434B CN104355434B CN201410539631.0A CN201410539631A CN104355434B CN 104355434 B CN104355434 B CN 104355434B CN 201410539631 A CN201410539631 A CN 201410539631A CN 104355434 B CN104355434 B CN 104355434B
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- Prior art keywords
- water
- sand
- sand filter
- sewage
- inner core
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000010865 sewage Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 129
- 239000004576 sand Substances 0.000 claims abstract description 67
- 239000006004 Quartz sand Substances 0.000 claims abstract description 33
- 239000008394 flocculating agent Substances 0.000 claims abstract description 12
- 238000000746 purification Methods 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 16
- 239000003344 environmental pollutant Substances 0.000 abstract description 12
- 238000001914 filtration Methods 0.000 abstract description 12
- 231100000719 pollutant Toxicity 0.000 abstract description 12
- 206010016256 fatigue Diseases 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 6
- 238000009287 sand filtration Methods 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 8
- 238000000605 extraction Methods 0.000 description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- AHLWZBVXSWOPPL-RGYGYFBISA-N 20-deoxy-20-oxophorbol 12-myristate 13-acetate Chemical compound C([C@]1(O)C(=O)C(C)=C[C@H]1[C@@]1(O)[C@H](C)[C@H]2OC(=O)CCCCCCCCCCCCC)C(C=O)=C[C@H]1[C@H]1[C@]2(OC(C)=O)C1(C)C AHLWZBVXSWOPPL-RGYGYFBISA-N 0.000 description 2
- 241001602688 Pama Species 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 159000000013 aluminium salts Chemical class 0.000 description 2
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 2
- 238000010538 cationic polymerization reaction Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- -1 float Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A kind of sewage water treatment method and device.Mainly solve existing filter plant poor processing effect, filtering layer containing filth amount when processing containing float and containing the severe sewage of innage low, and cause washed-out sand not thoroughly, the problem that hardens of filter bed.It is characterized in that: add inorganic flocculating agent and organic flocculant successively in raw water tubes line, the former water after being sufficiently mixed enters inner core, is filled with dissolved air water in inner core simultaneously；In inner core, a part of pollutant in former water are upwardly formed scum silica frost under the bubble of dissolved air water is lifted, and scum silica frost is discharged by scum silica frost discharge pipe, and remaining former water is uniform along quartz sand filter through lower water-dispensing device, and pollutant water purification after quartz sand filter filters is discharged through downflow weir；Contaminated quartz sand is promoted to sand-washing device through carrying sand device, drops back into quartz sand filter after cleaning up, it is achieved automatic fitration continuously.Air-float filtration is combined by this sewage water treatment method with running sand filtration so that can directly process the special sewage such as high suspended matter, high oil-containing, high treating effect.
Description
Technical field
The present invention relates to water treatment field, a kind of sewage water treatment method and device, it is particularly suited for containing float and the severe sewage disposal containing innage.
Background technology
Sand filtration solid-liquid separating method simple as one, effective has a wide range of applications in water-treatment technology field.But traditional fixed bed sand filtration apparatus floor space is big, water outlet efficiency is low, backwash is thorough, energy resource consumption is high, maintenance operation amount is big so that it is do not adapt to the requirement of modern water technology.
Shortcoming for tradition fixed bed sand filtration apparatus, follow-up developments have gone out various Quick-sand filtering equipment, but these equipment, it is only applicable to the slight pollution water body relatively low containing float and oil-containing, and to when processing containing float and the severe sewage containing innage, poor processing effect, filtering layer containing filth amount is low, water outlet inefficient, oil equiviscous contaminants crosses filter sand, and cause washed-out sand not thoroughly, filter bed hardens.
Summary of the invention
In order to overcome existing filter plant poor processing effect when processing containing float and the severe sewage containing innage, filtering layer containing filth amount is low, and cause washed-out sand the most thorough, the deficiency that filter bed hardens, the present invention provides a kind of sewage water treatment method and device, this sewage-treatment plant can process containing float and the severe sewage containing innage, water outlet is in hgher efficiency, go out water treatment efficiency more preferable, stop quartz sand filter media to harden phenomenon, unattended operation the most automatically can be realized, air-float filtration is combined by this sewage water treatment method with running sand filtration, allow to directly process high suspended matter, the special sewage such as high oil-containing, high treating effect.
The technical scheme is that a kind of sewage water treatment method, comprise the following steps: add inorganic flocculating agent and organic flocculant successively in raw water tubes line, the former water after being sufficiently mixed enters inner core, is filled with dissolved air water in inner core simultaneously；In inner core, a part of pollutant in former water are upwardly formed scum silica frost under the bubble of dissolved air water is lifted, and scum silica frost is discharged by scum silica frost discharge pipe, and remaining former water is uniform along quartz sand filter through lower water-dispensing device, and pollutant water purification after quartz sand filter filters is discharged through downflow weir；Contaminated quartz sand is promoted to sand-washing device through carrying sand device, drops back into quartz sand filter after cleaning up, it is achieved automatic fitration continuously.
Described inorganic flocculating agent is the one in aluminium salt, iron salt, polyaluminium salts, polymeric ferric salt, polymeric aluminum iron salt；Described organic flocculant is the one in PAMA, PAMC, cationic polymerization starch.
A kind of sewage-treatment plant, it is built-in with inner core including the shifting sand filter described in raw water tubes line, elevated tank, shifting sand filter, being provided with water inlet distributor in inner core, inner core top connects automatic slag-draining device, is equipped with dissolved air water water-locator bottom described water inlet distributor；Described raw water tubes line is connected with water inlet distributor by elevated tank, is provided with bottom quartz sand filter media, and shifting sand filter and is provided with sand collecting hopper in described shifting sand filter, and sand collecting hopper is placed in the sand-washing device at shifting sand filter top by proposing the connection of sand device.
Being respectively equipped with inorganic flocculating agent chemical feeding points and organic flocculant chemical feeding points on described raw water tubes line, raw water tubes line passes through static mixer Hybrid connections elevated tank.
It is provided with lower water-dispensing device bottom described inner core, and the grating gap of lower water-dispensing device is less than the particle diameter of quartz sand filter media.
Described shifting sand filter upper side is provided with downflow weir, and the shifting sand filter sidewall outside downflow weir has water purification outlet after filter.
The level height of described elevated tank outlet is higher than shifting sand filter top.
The two ends up and down of described inner core are cone, and centre is cylindrical.
There is advantages that owing to taking such scheme, the pollutant such as colloid in former water, float, oil there occurs physicochemical change under the dual function of inorganic flocculating agent and organic flocculant, it is condensed into bigger thick flco, and make oil equiviscous pollutant lose the adhesiveness to quartz sand, make quartz sand be readily cleaned and do not have the phenomenon that hardens.In shifting sand filter, inner core is biconial up and down, and middle part is cylindrical structural, and owing to being internally located at dissolved air water water-locator so that it is integrate sub-sand, water distribution, three kinds of functions of air supporting.The pollutant such as great quantity of floc in former water, oil are under the effect of dissolved air water, form scum silica frost on inner core top and discharge system through automatic slag-draining device, make the pollutant in water body greatly reduce, farthest reduce the operating load of quartz sand filter so that water outlet is in hgher efficiency.Further, many is more beneficial for the capture of quartz sand filtering layer to tiny flco relative to float larger, it is ensured that water outlet cleaning effect is more preferable.And quartz sand can be cleaned continuously and automatically and supplement back quartz sand filter, it is achieved automatic fitration.
Air supporting deslagging is filtered with quartz sand filter and integrates by this sewage water treatment method and device, instead of traditional air supporting and sand filtration two stages for the treatment of unit, reduce equipment volume, save floor space, can process containing float and the severe sewage containing innage, it is possible to process oil-containing etc. have the sewage of adhesive attraction pollutant to quartz sand；And water outlet efficiency is high, and water outlet high treating effect, energy consumption is low；Stop quartz sand filter media to harden phenomenon；Unattended operation the most automatically can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
null1-inorganic flocculating agent chemical feeding points in figure，2-the first static mixer，3-organic flocculant chemical feeding points，4-the second static mixer，5-elevated tank water inlet，6-elevated tank，7-dividing plate，8-elevated tank sewage draining exit，9-elevated tank outlet，10-shifting sand filter，11-water inlet，12-water inlet distributor，13-dissolved air water water inlet，14-dissolved air water water-locator，15-molten gas water water sucking mouth，16-inner core，17-lower water-dispensing device，18-quartz sand filter media，19-sand-washing device，20-washed-out sand water outlet，21-sand export，22-washed-out sand water pipeline，23-downflow weir，Water purification outlet after 24-filter，25-sand collecting hopper，26-carries sand device，27-sand extraction tube，28-air control dish，29-scum silica frost discharge pipe，30-automatic slag-draining device，31-compressed air hose，32-raw water tubes line.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of sewage water treatment method, comprise the following steps:
(1), in raw water tubes line 32, inorganic flocculating agent is dosed by inorganic flocculating agent chemical feeding points 1, inorganic flocculating agent can be the one in aluminium salt, iron salt, polyaluminium salts, polymeric ferric salt, polymeric aluminum iron salt, the most especially being preferred with polymeric aluminum iron salt, the former water having dosed inorganic flocculating agent mixes in the first static mixer 2.
(2), organic flocculant is dosed by organic flocculant chemical feeding points 3, organic flocculant can be the one in PAMA, PAMC, cationic polymerization starch, the most especially being preferred with PAMC, the former water having dosed organic flocculant mixes in the second static mixer 4.
(3), in the second static mixer 4, mixed former water enters into elevated tank 6 by elevated tank water inlet 5, the former water making addition medicament fully reacts in elevated tank 6, flowed out by elevated tank outlet 9 again, some pollutant are deposited to bottom elevated tank 6, elevated tank sewage draining exit 8 discharge simultaneously.The former water flowed out by elevated tank outlet 9 flows into water inlet distributor 12 by water inlet 11.
(4), while opening raw water tubes line 32, open dissolved air water water inlet 13, in inner core 16, be filled with high pressure dissolved air water by dissolved air water water-locator 14；High pressure dissolved air water generates the micro-bubble of a large amount of high degree of dispersion after decompression release, in former water, the pollutant such as substantial amounts of impurity, oil are upwardly formed scum silica frost under the lifting of the micro-bubble of high degree of dispersion, scum silica frost concentrates on the cone space of inner core 16 topmost, and scum silica frost is finally discharged by automatic slag-draining device 30 via scum silica frost discharge pipe 29 under the effect of static pressure.
(5), owing to the middle and lower part of shifting sand filter 10 is covered with quartz sand filter media 18, carries out the former water of the preliminary deslagging gap on lower water-dispensing device 17 and flow to the quartz sand filter bottom shifting sand filter 10, uniform along quartz sand filter；Uniformly the most gradually adverse current is through filter bed for former water, and in former water, the pollutant such as remaining impurity, oil are constantly retained by quartz sand, adsorb, and after the water purification after filtration covers the downflow weir 23 at shifting sand filter 10 top, water purification outlet 24 after filtering discharge.
(6), in (five) step, it is downwardly into sand collecting hopper 25 by the quartz sand of the contaminants such as impurity, greasy dirt, carried sand device 26 and be the most quantitatively promoted to sand-washing device 19 through sand extraction tube 27, in the process, the air contained in quartz sand is discharged, water and quartz sand enter in sand-washing device and are carried out, washed-out sand water is discharged via washed-out sand water pipeline 22, and the quartz sand after cleaning up is scattered again and is distributed to whole filter bed surface, it is achieved automatic fitration continuously.
A kind of sewage-treatment plant, including raw water tubes line 32, elevated tank 6, shifting sand filter 10, the first static mixer 2 and the second static mixer 4 it is respectively equipped with on raw water tubes line 32, and first the raw water tubes line 32 in static mixer 2 front be provided with inorganic flocculating agent chemical feeding points 1, the raw water tubes line 32 in the second static mixer 4 front is provided with organic flocculant chemical feeding points 3.The outlet of the second static mixer 4 connects elevated tank 6, the dividing plate 7 of the built-in lower openings of elevated tank 6, can slow down water velocity, make the former water having dosed medicament be sufficiently mixed.Meanwhile, bottom elevated tank 6, it is provided with elevated tank sewage draining exit 8, the dirt of bottom precipitation can be discharged.Shifting sand filter 10 is built-in with inner core 16, and the two ends up and down of inner core 16 are cone, and centre is cylindrical.Being provided with in inner core 16 bottom water inlet distributor 12, and water inlet distributor 12 and be provided with dissolved air water water-locator 14, dissolved air water water-locator 14 can be the arbitrary form that dish type, cylinder, dendriform etc. can play water distribution uniformity.The elevated tank outlet 9 on elevated tank 6 top connects water inlet 11 by pipeline, and water inlet 11 other end connects water inlet distributor 12；Dissolved air water water-locator 14 connects dissolving by dissolved air water water inlet 13, and inner core 16 middle and lower part is also associated with molten gas water water sucking mouth 15.The most advanced and sophisticated connection of inner core 16 top conical shape has scum silica frost discharge pipe 29, scum silica frost discharge pipe 29 to be connected with automatic slag-draining device 30, is discharged by the scum silica frost in inner core 16, and automatic slag-draining device 30 can control accomplished continuously or intermittently discharge and the size of discharge capacity of scum silica frost.Being provided with lower water-dispensing device 17 bottom inner core 16, lower water-dispensing device 17 uses metal or nonmetal welding sieve plate to make, and is especially preferred with grating longitudinal arrangement form, and wherein grating gap is less than the particle diameter of quartz sand filter media 18.
Around the described inner core 16 in shifting sand filter 10 and bottom is equipped with quartz sand filter media 18, and bottom shifting sand filter 10, it is provided with sand collecting hopper 25, sand collecting hopper 25 has sand extraction tube 27 by proposing sand device 26 connection, carry sand device 26 by compressed air control, it is filled with compressed air by compressed air hose 31, and is controlled by air control dish 28.Sand extraction tube 27 top connects sand-washing device 19, and sand-washing device 19 is placed in shifting sand filter 10 center of top, sand-washing device 19 connects and has stream washed-out sand water pipeline 22, the sewage after washed-out sand is discharged, and clean quartz sand filter media 18 continues to drop on quartz sand filter after cleaning, reuse.
Described shifting sand filter 10 upper side is provided with downflow weir 23, and shifting sand filter 10 sidewall outside downflow weir 23 has water purification outlet 24 after filter, and shifting sand filter 10 top is discharged by water purification outlet 24 after filtering after the water purification filtered covers downflow weir 23.Meanwhile, the level height of elevated tank outlet 9 should be higher than that shifting sand filter 10 top, makes the former water in water tank can automatically flow into shifting sand filter 10.
The air-flotation system of this sewage disposal device uses simple, stable, efficient air dissolved pump, and energy consumption is lower；Whole air supporting process integration completes in the inner core within shifting sand filter, eliminates the floor space of air-floating apparatus.Air-flotation system uses static pressure deslagging simultaneously, does not has traditional slag, residue extraction mechanism scraped, and runs more stable, energy consumption and is greatly reduced.
The filtration system of this sewage disposal device uses up-flow thermopnore to filter and single homogeneous filtering material, filters and carries out with washed-out sand simultaneously, it is not necessary to shut down backwash；Carrying sand and washed-out sand structure instead of typical high power backwashing system, energy consumption is extremely low；And the most automatically can run with 24 hours, it is not necessary to safeguard and keep an eye on, convenient management.
Claims (5)
1. a sewage-treatment plant, including raw water tubes line (32), elevated tank (6), shifting sand filter (10), it is characterized in that: described shifting sand filter (10) is built-in with inner core (16), described inner core (16) bottom is provided with lower water-dispensing device (17), and the grating gap of lower water-dispensing device (17) is less than the particle diameter of quartz sand filter media (18), inner core (16) top connects automatic slag-draining device (30), being provided with water inlet distributor (12) in inner core (16), described water inlet distributor (12) bottom is equipped with dissolved air water water-locator (14)；Described raw water tubes line (32) is connected with water inlet distributor (12) by elevated tank (6), it is provided with quartz sand filter media (18) in described shifting sand filter (10), and shifting sand filter (10) bottom is provided with sand collecting hopper (25), sand collecting hopper (25) is placed in the sand-washing device (19) at shifting sand filter (10) top by proposing sand device (26) connection.
Sewage-treatment plant the most according to claim 1, it is characterized in that: be respectively equipped with inorganic flocculating agent chemical feeding points (1) and organic flocculant chemical feeding points (3) on described raw water tubes line (32), raw water tubes line (32) passes through static mixer Hybrid connections elevated tank (6).
Sewage-treatment plant the most according to claim 2, it is characterised in that: described shifting sand filter (10) upper side is provided with downflow weir (23), and shifting sand filter (10) sidewall that downflow weir (23) is outside has water purification outlet (24) after filter.
Sewage-treatment plant the most according to claim 3, it is characterised in that: the level height of described elevated tank outlet (9) is higher than shifting sand filter (10) top.
Sewage-treatment plant the most according to claim 4, it is characterised in that: the two ends up and down of described inner core (16) are cone, and centre is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539631.0A CN104355434B (en) | 2014-10-14 | 2014-10-14 | A kind of sewage water treatment method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539631.0A CN104355434B (en) | 2014-10-14 | 2014-10-14 | A kind of sewage water treatment method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104355434A CN104355434A (en) | 2015-02-18 |
| CN104355434B true CN104355434B (en) | 2016-08-03 |
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| CN201410539631.0A Expired - Fee Related CN104355434B (en) | 2014-10-14 | 2014-10-14 | A kind of sewage water treatment method and device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106219875A (en) * | 2016-08-23 | 2016-12-14 | 永康市厚合工贸有限公司 | A kind of sewage purification defecator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537582A (en) * | 1966-03-21 | 1970-11-03 | Simonacco Ltd | Filtration |
| CN101704591A (en) * | 2009-11-12 | 2010-05-12 | 吴浩 | Sewage treatment method and device thereof |
| CN201512437U (en) * | 2009-09-28 | 2010-06-23 | 王克春 | Combined water purifier |
| CN102210947A (en) * | 2011-06-20 | 2011-10-12 | 蔡玉良 | Ripple runner sand washing moving bed sand filter and water treatment process thereof |
-
2014
- 2014-10-14 CN CN201410539631.0A patent/CN104355434B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537582A (en) * | 1966-03-21 | 1970-11-03 | Simonacco Ltd | Filtration |
| CN201512437U (en) * | 2009-09-28 | 2010-06-23 | 王克春 | Combined water purifier |
| CN101704591A (en) * | 2009-11-12 | 2010-05-12 | 吴浩 | Sewage treatment method and device thereof |
| CN102210947A (en) * | 2011-06-20 | 2011-10-12 | 蔡玉良 | Ripple runner sand washing moving bed sand filter and water treatment process thereof |
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| CN104355434A (en) | 2015-02-18 |
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