CN109824186A - Minerals sand, which is promoted, by negative pressure recycles high speed pellets pool process - Google Patents
Minerals sand, which is promoted, by negative pressure recycles high speed pellets pool process Download PDFInfo
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- CN109824186A CN109824186A CN201910241555.8A CN201910241555A CN109824186A CN 109824186 A CN109824186 A CN 109824186A CN 201910241555 A CN201910241555 A CN 201910241555A CN 109824186 A CN109824186 A CN 109824186A
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- 239000004576 sand Substances 0.000 title claims abstract description 141
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 61
- 239000011707 mineral Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000008569 process Effects 0.000 title claims abstract description 48
- 239000008188 pellet Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 239000010865 sewage Substances 0.000 claims abstract description 45
- 238000009826 distribution Methods 0.000 claims abstract description 35
- 238000005189 flocculation Methods 0.000 claims abstract description 35
- 230000016615 flocculation Effects 0.000 claims abstract description 35
- 238000005345 coagulation Methods 0.000 claims abstract description 28
- 230000015271 coagulation Effects 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 25
- 238000005273 aeration Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 230000001376 precipitating effect Effects 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 135
- 101100041681 Takifugu rubripes sand gene Proteins 0.000 claims description 134
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 238000004062 sedimentation Methods 0.000 claims description 20
- 239000010802 sludge Substances 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 239000000701 coagulant Substances 0.000 claims description 10
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000006004 Quartz sand Substances 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 238000010924 continuous production Methods 0.000 claims description 3
- 206010016256 fatigue Diseases 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 claims description 3
- 239000010842 industrial wastewater Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 239000000706 filtrate Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 239000000149 chemical water pollutant Substances 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- -1 glar Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 241001572175 Gaza Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 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 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Minerals sand circulation high speed pellets pool process is promoted by negative pressure the invention discloses a kind of, belongs to water-treatment technology field.The technique is to carry out sewage treatment using high speed pellets pond, the high speed pellets of dirty impurities in water are realized in treatment process using minerals sand, then the silt particle after precipitating is separated in a manner of negative pressure promotion compressed air, minerals sand recycles in sewage disposal process；The high speed pellets pond includes coagulation area, flocculation plus sand area, water distribution uniformity area, the taper bucket tube settling district and aeration denitrogenation exhalant region.Present invention selection carries out high speed pellets with the load of one or more minerals sand hybrid reactions, separates silt particle in a manner of negative pressure promotion compressed air, and recycle minerals sand, improves the section upflow velocity of settlement of sewage.
Description
Technical field
The present invention relates to water-treatment technology fields, and in particular to a kind of to promote minerals sand circulation high speed pellets by negative pressure
Pool process.
Background technique
Domestic common sedimentation basin mainly has: width sedimentation tank, inclined-tube sedimentation tank, efficient sedimentation tank, adds horizontal sedimentation tank
The techniques such as magnetic-coagulation sedimentation basin and gaza's sedimentation basin.Wherein, using the width sedimentation tank of physical method and the dirt of horizontal sedimentation tank
Object precipitating section upflow velocity is contaminated between 0.8~3.5m/h, using the inclined-tube sedimentation tank and efficient sedimentation tank of physical-chemical process
Section upflow velocity between 8.3~14m/h, add the section upflow velocity of magnetic-coagulation sedimentation basin between 13~25m/h.
In view of current national environmental protection portion proposes that IV class water standard of grass root's, future need to be reached before the year two thousand twenty
The technology tide of environmental transformation will be started within several years in China.Especially total nitrogen, total phosphorus index removal on be one
A huge challenge.Wherein, the removal of nitrogen be unable to do without biochemical process, and the removal of phosphorus be unable to do without depositing technology.
Meanwhile cutting that dirty main pipe is cut in dirty, city, shut off processing, sewage treatment plant of rain sewage proposes mark transformation, rubbish in river regulation
In the engineerings such as rubbish percolate processing, high speed pellets pool process is preference, and the advance of the technique directly influences the work of engineering
Make efficiency and economic cost.
Summary of the invention
Minerals sand circulation high speed pellets pool process is promoted by negative pressure the purpose of the present invention is to provide a kind of, can be solved
The certainly low problem of sedimentation basin settling efficiency.
To achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of to promote minerals sand circulation high speed pellets pool process by negative pressure, which is that high speed pellets pond is utilized to carry out
Sewage treatment is realized the high speed pellets of dirty impurities in water in treatment process using minerals sand, is mentioned by compressed air with negative pressure
The mode risen separates the silt particle after precipitating, and minerals sand recycles in sewage disposal process；The high speed pellets Chi Bao
Include coagulation area, flocculation plus sand area, water distribution uniformity area, the taper bucket tube settling district and aeration denitrogenation exhalant region, in which:
Coagulation area: coagulant mixes in coagulation area with the suspended particle in sewage and forms small wadding under agitation
Body；The coagulation area includes cylinder-shaped or rectangle pond body I, and pond body I is equipped with water inlet line, and the water inlet of water inlet line is equipped with
Coagulant chemical feed pipe；
Flocculation plus sand area: the flocculant and minerals that the small wadding body that coagulation area is formed enters flocculation plus sand Qu Houyu is added
Sand mixing, small wadding body form big wadding body as core using the minerals sand added；The flocculation plus sand area include rectangle pond body
II, vertical guide shell and sand washer, the vertical guide shell are set in rectangle pond body II, and setting mixes slowly in vertical guide shell
Machine；The sand washer is set to the top of rectangle pond body II, and for cleaning minerals sand, the top of the rectangle pond body II is additionally provided with
Flocculant chemical feed pipe and minerals sand add mouth, are respectively used to that flocculant and minerals sand is added to flocculation plus sand area；
Water distribution uniformity area: the mixed material in flocculation plus sand area enters water distribution uniformity area and evenly distributes；The water distribution uniformity area
It is the plane mesh structure arranged and formed that is interconnected by multiple water distributors in rectangle pond body III；
The taper bucket tube settling district: including inclined tube, settling zone and negative pressure lifting device, the settling zone is by multiple the taper buckets
Uniformly arrangement is formed in the horizontal direction, and settling zone is located at the lower section in the water distribution uniformity area, and the inclined tube is located at described uniform
The top of the top of water distribution area, inclined tube is equipped with catch basin；The negative pressure lifting device includes multiple vertical sewage pipes, each blowdown
The lower end of pipe is protruded into a taper bucket；The mixed material in water distribution uniformity area is flowed upward to the process of catch basin by inclined plate bottom
In, particle and wadding body in mixed material are deposited on the surface of inclined plate and glide under the effect of gravity, and deposit to the taper bucket
It is interior；
Aeration denitrogenation exhalant region: porous tubular aerator is set between inclined tube upper end and catch basin, is blasted by air blower
Gas realizes dosing or aeration into water body, to promote the conversion of Water, reaches the removal of part nitrogen；After denitrogenation processing
Water collected and discharged by catch basin.
In the coagulation area, pipe-line mixer is arranged in the water inlet of water inlet line, and water inlet line is equipped with Electromagnetic Flow
It counts, is additionally provided with flash mixer in pond body I.
In the flocculation plus sand area, the slow stirrer is controlled using close-loop control mode according to water and change of water quality
It is stirred with 40~90r/min revolving speed and promotes sewage in vertical guide shell, follow the sewage inside and outside guide shell
Circulation is moved to reach and more fully be mixed, and increases sewage in the residence time in flocculation plus sand area.
The inlet of the sand washer is equipped with hydrocyclone, is equipped with sodium hypochlorite dosing at sand washer sand export
Pipe；The minerals sand isolated through hydrocyclone enters in sand washer, and the minerals sand after sand washer cleans is by washing
Screw conveyor in sand machine is promoted to sand washer outlet, and in sand washer exit, sodium hypochlorite medicament is with spray pattern and mineral
Matter sand is sufficiently mixed and will put into flocculation plus sand area after the oxidation of minerals sand, and washed-out sand waste water can drain into coagulation area.
It is connected between the rectangle pond body I in the high speed pellets pond and rectangle pond body II by foot passage I, rectangle pond body
It is separated between II and rectangle pond body III by baffle, is provided with channel II in the middle part of baffle；One end of the foot passage I is set to rectangle form pool
The bottom of body I, the other end are set to the bottom of rectangle pond body II and are located at the underface of the guide shell；In the flocculation plus sand area
Mixed material through channel II enter water distribution uniformity area when, mixed material first flow up reach channel II, flow to still further below
Up to water distribution uniformity area.
The negative pressure lifting device includes multiple vertical sewage pipes, silt pipe and compressed air hose, in which: each vertical row
The upper end of dirty pipe is connected with the silt particle pipe, and the side wall middle and upper part of each vertical sewage pipe passes through a branch pipe and is connected to
Compressed air hose；The silt particle pipe is connected with the feed inlet of the hydrocyclone, the top of hydrocyclone
Equipped with sludge pipe, for the pug after separating to be discharged, feed inlet is located at the side wall upper part of hydrocyclone, and sand export is located at
The end of the bottom of hydrocyclone, sand export is protruded into sand washer.
In the taper bucket tube settling district, compressed air hose connects air compressor machine；Inclined tube height is 1.2m, inclined tube and level
Angular separation is 60 °, and the design of inclined plate height and tilt angle forms the continuous process scraped certainly, be accumulated in wadding body will not
On inclined tube.
In the present invention minerals sand used be by quartz sand, manganese sand and iron powder according to the weight ratio mixing of 5:2:1 and
At.
High speed pellets pool process of the present invention for city domestic sewage processing, Industrial Wastewater Treatment, river sewage improvement and
The precipitation process stage in the water harnessings such as sludge handling, waterworks or landfill leachate field.
When carrying out sewage treatment using high speed pellets pool process of the present invention, water in tube settling district is changed according to influent quality
Upflow velocity can reach 30~50m/h.
High speed pellets pool process of the present invention can be used for city domestic sewage processing, Industrial Wastewater Treatment, river sewage improvement
And the precipitation process stage in the water harnessings such as sludge handling, waterworks or landfill leachate field.
The advantages of the present invention are as follows:
1, high speed pellets pool process of the present invention uses minerals sand compressed air in a manner of negative pressure promotion, by taper
The substances such as glar, sand in the settling zone precipitation bucket that struggles against are promoted, and are separated silt particle using the kinetic energy of compressed air, are recycled
Minerals sand, sand particles object puts into flocculation zone or coagulation area in addition flocculant (PAM) again after being uniformly distributed, to warp
Sewage after crossing coagulating is trapped and is loaded the load load-bearing of sludge, keeps sludge and minerals sand heavy in the taper bucket
Shallow lake area and inclined tube settling section high speed pellets, then promoted and separated with negative pressure by compressed air, reach and recycles minerals sand
Purpose.Aeration nitrogen rejection facility is set to reach the removal of part nitrogen in water outlet.
2, high speed pellets pool process main function of the present invention is ss suspended solid, the total phosphorus TP removed in sewage, for chemistry
The removal of the indexs such as oxygen demand COD, total nitrogen TN, ammonia nitrogen NH3-N also has certain positive effect.Pass through PLC automation control
With the real-time detection of in-line meter, system can transported according to amount of inlet water, polluter adjust automatically operation data and dosage
The unattended of overall process is reached in row management.
3, present invention process solves the problems, such as that sludge settling speed is slow, treatment effeciency is low, using high speed pellets of the present invention
Pool process greatly improves the section upflow velocity of sewage, can promote the water upflow velocity of dirty tube settling district to 30
~50m/h.
4, present invention decreases land seizure areas, and reduce operation expense and construction investment and administration fee
Deng.
Detailed description of the invention
Fig. 1 is the schematic illustration that the present invention promotes that minerals sand recycles high speed pellets pool process by negative pressure.
Fig. 2 is the overall structure diagram in high speed pellets pond used in the present invention.
Fig. 3 is sand washer structural schematic diagram in the present invention.
Fig. 4 is the water distribution uniformity area floor plan in high speed pellets pond of the present invention.
Fig. 5 is the aeration denitrogenation exhalant region floor plan in high speed pellets pond of the present invention.
Fig. 6 is the automatic instrument(s) layout drawing that high speed pellets pond of the present invention is related to.
In figure: 100- coagulation area；101- pipe-line mixer；102- electromagnetic flowmeter；103- quick mixer；The channel 104-
Ⅰ；200- flocculation plus sand area；201- guide shell；202- mixes slowly machine；The channel 203- II；300- water distribution uniformity area；400- aeration
Denitrogenation exhalant region；401- micro-hole aerator；402- air hose；5- sand washer；6- hydrocyclone；7- sodium hypochlorite dosing
Pipe；8- sludge pipe；9- the taper bucket；10- vertical riser；11- silt particle pipe；12- compressed air hose；(the air compression of 13- air compressor machine
Machine)；14- catch basin；15- inclined tube；16- exhalant region；17- liquid-level switch；18- sludge interface instrument；19-SS in-line analyzer；20-
Pressure-regulating valve.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention can be easier to by ability
Field technique personnel understanding, so as to make a clearer definition of the protection scope of the present invention.
Referring to Fig. 1, the present invention is to promote minerals sand by negative pressure to recycle high speed pellets pool process, the high speed pellets pond
Technique solves that sludge settling speed is slow, treatment effeciency is low, operation expense is high, take up a large area, investment cost is high asks
Topic.
High speed pellets pool process of the present invention with minerals sand compressed air by negative pressure promoted circulation in a manner of, by taper
The substances such as glar, sand in the settling zone precipitation bucket that struggles against are promoted, and are separated silt particle using the kinetic energy of compressed air, sand particles
Object puts into flocculation zone or coagulation area in addition flocculant (PAM) again after being uniformly distributed, to the dirt after coagulating
Water is trapped and is loaded the load load-bearing of sludge, enables sludge and minerals sand in the taper bucket settling zone and inclined tube settling section
High speed pellets, then achieve the purpose that recycle minerals sand with the separation of negative pressure hoisting way by compressed air.It is set in water outlet
Aeration nitrogen rejection facility is set to reach the removal of part nitrogen.
High speed pellets pool process of the present invention uses the sedimentation basin of specific structure, and structure is as shown in figures 2-6.The sedimentation basin packet
Include coagulation area 100, flocculation plus sand area 200, water distribution uniformity area 300, the taper bucket tube settling district and aeration denitrogenation exhalant region 400.
1, coagulation area
Topology layout form: cylinder-shaped or rectangle pond body I 1, water inlet is arranged pipe-line mixer 101, on water inlet line
Equipped with electromagnetic flowmeter 102, flash mixer 103 is arranged in pond body top, and water inlet, which can be expanded, adds activated charcoal adding apparatus 1
Set, water inlet are additionally provided with coagulant chemical feed pipe.
Major process unit: pipe-line mixer 1, electromagnetic flowmeter 1, quick mixer 1 (frequency-variable closed control),
1 set of 1 tunnel of coagulant chemical feed pipe, activated charcoal adding apparatus.
Technology controlling and process principle:
Treatment sewage enters coagulation area by water inlet, passes through coagulant chemical feed pipe dosing coagulant (in Fig. 2 in water inlet
PAC), after sewage is mixed with coagulant by pipe-line mixer enter coagulation area, flash mixer by frequency control according to
Water, change of water quality use close-loop control mode quickly to mix under the action of 90~120r/min with suspended matter in sewage, lead to
The negative electrical charge for crossing neutralization particle surface makes particle " de- steady ", forms small wadding body and then passes through the entrance of I foot passage I 104 of pond body
The guide shell 201 in flocculation plus sand area.Phosphorus in raw water and coagulant reaction simultaneously form phosphate and reach to arrive chemical dephosphorization
Purpose.
2, flocculation plus sand area
Topology layout form: rectangle pond body II 1, vertical guide shell 201 is installed in inside, is arranged at a slow speed in vertical guide shell
Sand washer 5 is arranged in blender 202, II top of pond body, and hydrocyclone 6, outlet setting hypochlorous acid is arranged in sand washer entrance
Sodium chemical feed pipe 7, II top of pond body are additionally provided with flocculant chemical feed pipe.
Major process unit: mix slowly 1, machine (frequency-variable closed control), hydrocyclone 1, sand washer 1,
Liquid-level switch 1,1 tunnel of flocculant (PAM) chemical feed pipe, 1 tunnel of sodium hypochlorite chemical feed pipe, 1 tunnel of sludge pipe.
Technology controlling and process principle:
The micro- sand of circulation minerals promoted by negative pressure is in the hydrocyclone of sand washer inlet by pressing
It is sprayed under the power of contracting air, keeps silt floc sedimentation broken, separate silt under the action of hydraulic cyclone centrifugal force, specific gravity is lighter
Muddy water sludge-tank concentration is flowed out to by the sludge pipe 8 on cyclone top, heavier chiltern particle is in cyclonic action lower edge
Cyclone sinks and exports to sand washer, and the sand after sand washer cleans is promoted to sand washer exit by screw conveyor,
Flocculation zone is put into after hypochlorite oxidation, washed-out sand waste water drains into coagulation area.
The circulation micro- sand of minerals is mainly made of manganese, iron, quartz sand etc..Because containing irony ingredient, in sand washer sand export
Sodium hypochlorite chemical feed pipe 7 is set, merges sodium hypochlorite medicament sufficiently with minerals sand with spray pattern, and make ferric iron in alkali
Property under the conditions of and liquor natrii hypochloritis react and generate high-speed rail acid group, high-speed rail acid group has very strong oxidisability, therefore can pass through oxygen
Change effect carries out disinfection.Simultaneously as the reduzate after reaction is iron hydroxide, the property with colloid can be adsorbed
Suspended matter in water can more easily be assembled formation precipitating, can reach in conjunction with PAM and efficiently remove by the suspended impurity in water
Go the purpose of the fine suspended matter in water.
Coagulation formed small wadding body mixed in flocculation zone with flocculant PAM, slow stirrer pass through frequency control according to
Water, change of water quality are used close-loop control mode to be stirred with the effect of 40~90r/min and carried out in vertical guide shell
It is promoted, the sewage for keeping guide shell inside and outside more fully mixing circulation, and increases sewage in the residence time in flocculation plus sand area, made
Form that density is bigger, heavier wadding body using the micro- sand of minerals as core, be more advantageous in the taper bucket in sedimentation basin quickly
Precipitating.Mixed material in flocculation zone enters water distribution uniformity area 300 by channel II 203.
3, water distribution uniformity area
Topology layout form: the plane net that the interconnected arrangement of multiple water distributors (circular tube shaped and/or rectangular duct) is formed
Shape structure.Water distribution uniformity differentiation is distributed between each the taper bucket of the taper bucket tube settling district and inclined tube, in each the taper bucket
Top is uniformly dispersed downwards water distribution, is connected between each water distributor by welding manner；The size of water distributor bore is according to water inlet
Size is measured, is calculated according to 0.5 meter of standard pipe pressure current of highest head pressure.The water inlet in water distribution uniformity area is channel
II 203, it is lower to flowing into water.
The water distribution uniformity area is set in pond body III, in pond body III, according to a variety of zoning's forms of functional stratification: bottom
Multiple the taper buckets 9 are arranged, arrangement is water distribution uniformity area 300, inclined tube 15, aeration denitrogenation exhalant region 400 upwards in turn.
According to different processing water criterion calculation waterpower curve cloth Water l oads, ensureing has 0.5 meter of head so that each heavy
Shallow lake area water distribution is uniform, and flocculant promotes the small wadding body entered to be formed more by absorption, electrically neutralization and mutual bridging action
Big wadding body, the effect for extending water (flow) direction and water distribution uniformity had not only enable medicament and wadding body be sufficiently mixed but also will not destroy shape
At big flocculating body, bottom deposit sludge will not be disturbed, to make sludgd deposition more evenly.
4, the taper bucket tube settling district
Topology layout form: including inclined tube 15, settling zone and negative pressure lifting device, inclined tube is located at the upper of water distribution uniformity area
The top of side, inclined tube 15 is equipped with catch basin 14；Settling zone is formed in bottom by multiple 9 horizontal arrangements of the taper bucket；The negative pressure mentions
Rising device includes multiple vertical risers 10, silt particle pipe 11 and compressed air hose 12, and compressed air hose 12 is adjusted equipped with pressure
Valve 20；The lower end of each vertical riser 10 is protruded into a taper bucket, the mixed material in water distribution uniformity area from inclined tube bottom to
During flowing upwardly to catch basin 14, particle and wadding body in mixed material are deposited on the surface of inclined plate and under the effect of gravity
It glides, and deposits to the taper bucket.The upper end of each vertical sewage pipe is connected with the silt particle pipe 11, each vertical blowdown
The side wall middle and upper part of pipe passes through a branch pipe and is connected to compressed air hose 12, and compressed air hose connects air compressor machine 13；The mud
Sandpipe 11 is connected with the feed inlet of the hydrocyclone 6, and the top of hydrocyclone 6 is equipped with sludge pipe 8, uses
Pug after discharge separation, feed inlet are located at the side wall upper part of hydrocyclone, and sand export is located at hydrocyclone separation technology
The bottom of device, the end of sand export are protruded into sand washer 5.
Sludge interface instrument 18 is set at 0.2 meter of water distribution uniformity area top, and it is online that SS is arranged in catch basin bottom level position
Monitor 19.
Major process unit: 1 set of inclined tube, 1 set of negative pressure lifting device, air compressor machine 1,1, sludge interface instrument, SS are supervised online
Survey instrument 1,1 set of air control unit, 1 set of PLC robot control system(RCS), liquid-level switch 1.
Technology controlling and process principle:
Uniform water distribution enters the inclined tube bottom of sedimentation basin and then upward flow to top gathering ground, particle and wadding body is deposited in
It glides on the surface of inclined tube and under the effect of gravity.With the inclined tube height and 60 ° of inclinations of the upflow velocity of 30~50m/h and 1.2m
The continuous process scraped certainly can be formed, be accumulated in wadding body will not on inclined tube.Sludge containing sand quickly exists under the effect of gravity
The silt for being deposited on bottom is promoted to hydraulic cyclone device in a manner of negative pressure promotion compressed air by deposition in the taper bucket
Carry out silt particle separation.
5, it is aerated denitrogenation exhalant region
Topology layout form: being arranged porous tubular aerator 401 between inclined tube top and catch basin, logical using air blower
It crosses air hose 402 and inputs compressed air to porous tubular aerator 401.
Major process unit: 1 set of air blower 1, porous tubular aerator and air pipe line, 1 set of catch basin of water outlet.
Technology controlling and process principle:
Organic matter conversion during coagulating in sewage can cause ammonia nitrogen to increase, by using dosing or the side of aeration
Formula promotes the conversion of nitrogen, reaches the removal of part nitrogen.Water after precipitating is catchmented by being distributed in the stainless steel at the top of inclined-plate clarifying basin
Slot 14 is collected, and is discharged through exhalant region 16.
6, robot control system(RCS) control principle: PLC robot control system(RCS) starts coagulant dosing pump according to flow switch feedback signal；
Postpone 5 minutes starting coagulation area quick mixers, flocculant PAM dosing pumps；Flocculation zone water level starts flocculation zone after reaching requirement
Mix slowly machine；Settling zone water level, which reaches, to be successively spaced 30 seconds starting sand washers, negative-pressure cyclic device, sodium hypochlorite after requirement and adds
Teat pipette；After water inlet 30 minutes, PLC robot control system(RCS) acquires sludge interface instrument and SS in-line analyzer signal, process and flow of inlet water
Count setting value logical operation, control Pneumatic control cabinet tolerance, air pressure come change negative pressure promoted minerals sand internal circulating load；And it exports
4~20mA signal controls flocculation stirring machine and coagulation stirrer revolving speed；It is aerated the starting aeration denitrogenation of denitrogenation area air blower.
Activated charcoal adding apparatus requires to put into operation in due course according to laboratory data and technique.
7, the selection of minerals sand
Minerals sand includes quartz sand, manganese sand and iron powder；Partial size is between 100~150 μm；Mineral sand of the present invention
It is to be mixed by quartz sand, manganese sand and iron powder according to the weight ratio of 5:2:1.
The present invention promotes minerals sand circulation high speed pellets pool process by negative pressure and can both apply: (1) sewage treatment
Factory, waterworks mention the pretreatment section of mark transformation or the processing suspended particulate substance stage of primary reinforcement, can also apply in depth
The stages such as suspended matter, the dephosphorization of processing stage；(2) the emergency disposal center for cutting dirt, bed mud sewage of river regulation；(3) city
Trunk sewer cuts dirty emergency disposal；(4) rain sewage shuts off emergency processing；(5) landfill leachate treatment.
The present invention is by can apply the redox precipitation stage in high-concentration industrial-water again after technique extension.It should
Technique can be applied with large-scale concrete structure type in large-scale wastewater treatment plant, can also be in the form of the steel structure of modular combination
It applies in terms of emergency disposal, such as: processing that river regulation cuts dirty, city mains section dirt, rain sewage shuts off, sewage treatment plant mention mark
Transformation etc. need to be using in the engineering that primary reinforcement is handled.Application range and prospect are very wide.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: the technique is to utilize high speed
Sedimentation basin carries out sewage treatment, realizes the high speed pellets of dirty impurities in water in treatment process using minerals sand, empty by compression
Gas separates the silt particle after precipitating in such a way that negative pressure is promoted, and minerals sand recycles in sewage disposal process；The height
Fast sedimentation basin includes coagulation area, flocculation plus sand area, water distribution uniformity area, the taper bucket tube settling district and is aerated denitrogenation exhalant region,
In:
Coagulation area: coagulant mixes in coagulation area with the suspended particle in sewage and forms small wadding body under agitation；
The coagulation area includes cylinder-shaped or rectangle pond body I, and pond body I is equipped with water inlet line, and the water inlet of water inlet line is equipped with mixed
Solidifying agent chemical feed pipe；
Flocculation plus sand area: the small wadding body that coagulation area is formed enters the flocculant that flocculation adds sand Qu Houyu to add and minerals sand is mixed
It closes, small wadding body forms big wadding body as core using the minerals sand added；The flocculation plus sand area include rectangle pond body II, erect
To guide shell and sand washer, the vertical guide shell is set in rectangle pond body II, and setting mixes slowly machine in vertical guide shell；Institute
The top that sand washer is set to rectangle pond body II is stated, for cleaning minerals sand, the top of the rectangle pond body II is additionally provided with flocculation
Agent chemical feed pipe and minerals sand add mouth, are respectively used to that flocculant and minerals sand is added to flocculation plus sand area；
Water distribution uniformity area: the mixed material in flocculation plus sand area enters water distribution uniformity area and evenly distributes；The water distribution uniformity area is set to
It is the plane mesh structure arranged and formed that is interconnected by multiple water distributors in rectangle pond body III；
The taper bucket tube settling district: including inclined tube, settling zone and negative pressure lifting device, the settling zone is by multiple the taper buckets in water
Square uniformly arrangement is formed upwards, and settling zone is located at the lower section in the water distribution uniformity area, and the inclined tube is located at the water distribution uniformity
The top of the top in area, inclined tube is equipped with catch basin；The negative pressure lifting device includes multiple vertical sewage pipes, each sewage pipe
Lower end is protruded into a taper bucket；During the mixed material in water distribution uniformity area flows upward to catch basin by inclined plate bottom, mix
The particle and wadding body closed in material is deposited on the surface of inclined plate and glides under the effect of gravity, and deposits to the taper bucket；
Aeration denitrogenation exhalant region: porous tubular aerator is set between inclined tube upper end and catch basin, gas is blasted by air blower
It realizes dosing or aeration into water body, to promote the conversion of Water, reaches the removal of part nitrogen；Water after denitrogenation processing
It is collected by catch basin and is discharged.
2. according to claim 1 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: institute
It states in coagulation area, the water inlet of water inlet line is arranged pipe-line mixer, and water inlet line is equipped with electromagnetic flowmeter, in pond body I
It is additionally provided with flash mixer.
3. according to claim 1 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: institute
It states in flocculation plus sand area, uses close-loop control mode to control the slow stirrer with 40~90r/ according to water and change of water quality
Min revolving speed is stirred, and is reached the effluent cycle flowing inside and outside guide shell and is more fully mixed, and increases sewage and add in flocculation
The residence time in sand area.
4. according to claim 1 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: institute
The inlet for stating sand washer is equipped with hydrocyclone, is equipped with sodium hypochlorite chemical feed pipe at sand washer sand export；It is revolved through waterpower
The minerals sand that stream separator is isolated enters in sand washer, and the minerals sand after sand washer cleans is by the spiral in sand washer
Conveyer is promoted to sand washer outlet, and in sand washer exit, sodium hypochlorite medicament is sufficiently mixed with spray pattern and minerals sand
And flocculation plus sand area being put into after the oxidation of minerals sand, washed-out sand waste water can drain into coagulation area.
5. according to claim 1 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: institute
It states and is connected between the rectangle pond body I in high speed pellets pond and rectangle pond body II by foot passage I, rectangle pond body II and rectangle form pool
It is separated between body III by baffle, is provided with channel II in the middle part of baffle；One end of the foot passage I is set to the bottom of rectangle pond body I,
The other end is set to the bottom of rectangle pond body II and is located at the underface of the guide shell；Mixed material in the flocculation plus sand area
When entering water distribution uniformity area through channel II, mixed material, which first flows up, reaches channel II, and flowing reaches water distribution uniformity still further below
Area.
6. according to claim 4 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: institute
Stating negative pressure lifting device includes multiple vertical sewage pipes, silt pipe and compressed air hose, in which: the upper end of each vertical sewage pipe
It is connected with the silt particle pipe, the side wall middle and upper part of each vertical sewage pipe passes through a branch pipe and is connected to compressed air
Pipe；The silt particle pipe is connected with the feed inlet of the hydrocyclone, and the top of hydrocyclone is equipped with spoil disposal
Pipe, for the pug after separating to be discharged, feed inlet is located at the side wall upper part of hydrocyclone, and sand export is located at hydraulic cyclone
The end of the bottom of separator, sand export is protruded into sand washer.
7. according to claim 6 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: institute
It states in the taper bucket tube settling district, compressed air hose connects air compressor machine；Inclined tube height is 1.2m, and inclined tube is with horizontal direction angle
60 °, the design of inclined plate height and tilt angle forms the continuous process scraped certainly, be accumulated in wadding body will not on inclined tube.
8. according to claim 1 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: institute
Stating minerals sand is to be mixed by quartz sand, manganese sand and iron powder according to the weight ratio of 5:2:1.
9. according to claim 1 promote minerals sand circulation high speed pellets pool process by negative pressure, it is characterised in that: should
Technique is seeped for city domestic sewage processing, Industrial Wastewater Treatment, river sewage improvement and sludge handling, waterworks or rubbish
The precipitation process stage in the water harnessings such as filtrate field.
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| CN113072153A (en) * | 2021-06-07 | 2021-07-06 | 北京水利发展有限公司 | Medical waste water is from mixing purification unit |
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| CN113968608A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Self-circulation encrypted granular sludge filtering sedimentation tank |
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| CN116409909A (en) * | 2023-06-09 | 2023-07-11 | 深圳永清水务有限责任公司 | Device for treating waste water generated by assay or detection |
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