CN109574417A - A kind of percolation liquid treating system and method - Google Patents
A kind of percolation liquid treating system and method Download PDFInfo
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- CN109574417A CN109574417A CN201910069626.0A CN201910069626A CN109574417A CN 109574417 A CN109574417 A CN 109574417A CN 201910069626 A CN201910069626 A CN 201910069626A CN 109574417 A CN109574417 A CN 109574417A
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- 238000005325 percolation Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 21
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- 238000004062 sedimentation Methods 0.000 claims abstract description 28
- 238000009282 microflotation Methods 0.000 claims abstract description 26
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims abstract description 20
- 239000010865 sewage Substances 0.000 claims abstract description 20
- 230000003750 conditioning effect Effects 0.000 claims abstract description 19
- 238000005189 flocculation Methods 0.000 claims abstract description 14
- 230000016615 flocculation Effects 0.000 claims abstract description 14
- 230000020477 pH reduction Effects 0.000 claims abstract description 14
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 12
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 37
- 206010021143 Hypoxia Diseases 0.000 claims description 25
- 230000007954 hypoxia Effects 0.000 claims description 25
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- 238000000926 separation method Methods 0.000 claims description 16
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- 239000000126 substance Substances 0.000 claims description 13
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- 230000000694 effects Effects 0.000 claims description 10
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- 239000004519 grease Substances 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 6
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- 241000894006 Bacteria Species 0.000 claims description 5
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of percolation liquid treating system and methods, it is related to town sewage treatment technology field, including oil separator, conditioning tank, flocculation plant, ultra micro flotation unit, water distribution/acidification pool, up-flow anaerobic sludge blanket, sedimentation basin, biological contact oxidation pond, inorganic ceramic membrane, sterilization pool and clear water reserviors, it is sequentially connected, the present invention has rational design, can landfill leachate efficiently changeable to water quality and quantity, that fluctuating range is big handle, and it is small to run simple, stable water outlet, occupied area.
Description
Technical field
The invention belongs to town sewage treatment technology fields, more particularly to a kind of percolation liquid treating system and method.
Background technique
The regions rubbish such as each cell, street is unified collect to compressor station terminal after, rubbish in compressing transfer station into
Row depth drop holds compression, by rubbish per se with moisture (free water body), the liquid such as grease stain compress come out as far as possible, into one
Step reduces rubbish own wt, volume, maximumlly improves the useful load of subsequent transportation vehicle, effectively reduces later period transport
Cost and prevent sewage water clock in transportational process, situations such as stink is excessive generation, therefore produces landfill leachate, rubbish
Leachate quality is sufficiently complex changeable, has fairly obvious water quality and quantity variability, and concentration is high, fluctuation is big, daily, weekly,
Monthly, quarterly all there is the variation of apparent water quality and quantity, great difficulty is brought to processing, at existing landfill leachate
Reason method substantially there are five types of: merge with municipal sewage, bioremediation, materilization freatment method, land treatment systems method, evaporated
Reason, wherein merging with municipal sewage most commonly seen, sanitary sewage self-pollution object concentration is lower, and (COD is generally in 100~500mg/
Between L), being incorporated to for domestic sewage processing system for the compression liquid of high density pollution object has extremely serious influence, nothing
Method, which is realized, stablizes dilution, careless slightly to will cause that entire Sewage Disposal process performance is low, and serious person directly makes its paralysis
Lose processing capacity.
Summary of the invention
It is an object of the invention to provide a kind of percolation liquid treating systems, can efficiently handle the huge rubbish of fluctuation range
Rubbish percolate, and its occupied area is small, impact resistance ability is strong, stable water outlet, another object of the present invention is just to provide a kind of infiltration
Filtrate processing method.
The purpose of the present invention is realized by following technical proposals:
A kind of percolation liquid treating system, including sequentially connected oil separator, conditioning tank, flocculation deposition apparatus, ultra micro flotation
Device, water distribution/acidification pool, up-flow anaerobic sludge blanket, sedimentation basin, biological contact oxidation pond, inorganic ceramic membrane, sterilization pool and clear
Pond.
Further, the flocculation deposition apparatus includes PAC reactor tank and PAM reactor tank, the PAC reactor tank and PAM
Reactor tank is equipped with automatic medicament feeding system, and PAC reactor tank is connect with the conditioning tank, and PAM reactor tank and the ultra micro flotation fill
Set connection.
Further, the up-flow anaerobic sludge blanket includes up-flow anaerobic sludge blanket ontology and sludge reflux tank；Institute
State sludge reflux tank sludge outlet be connected to the sludge inlet of the up-flow anaerobic sludge blanket ontology to by sludge reflux extremely
In up-flow anaerobic sludge blanket ontology；The liquid outlet of the liquid inlet connection up-flow anaerobic sludge blanket ontology of sludge reflux tank, it is dirty
The liquid outlet of mud return tank is connected to the liquid inlet of the sedimentation basin.
Further, the biological contact oxidation pond includes several hypoxia response ponds and several aerobic reaction tanks, described to lack
Oxygen reaction tank and the aerobic reaction tank are arranged alternately, and a hypoxia response pond and an aerobic reaction tank form a reaction
Group is organized before interior hypoxia response pond is set to aerobic reaction tank and is equipped with to realize the interior return pipe recycled of group, the reflux
Pipe is connected to the liquid outlet of the aerobic reaction tank and the liquid inlet in hypoxia response pond.
Further, the sedimentation basin, biological contact oxidation pond and inorganic ceramic membrane are integrated in a cabinet.
Further, including the sludge treating system to handle sludge, the sludge treating system includes to collect
The conditioning tank, ultra micro flotation unit, up-flow anaerobic sludge blanket, sedimentation basin, biological contact oxidation pond and inorganic ceramic membrane are net
The sludge-tank of the sludge generated when water and folded spiral shell machine to mud-water separation, the sludge inlet of the sludge-tank are respectively communicated with adjusting
Pond, ultra micro flotation unit, up-flow anaerobic sludge blanket, sedimentation basin, biological contact oxidation pond and inorganic ceramic membrane sludge outlet,
The folded spiral shell machine is connected to sludge-tank by pump.
Further, the inorganic ceramic membrane is anisotropic membrane, and the membrane aperture of inorganic ceramic membrane is at 0.08~0.3 μm.
A kind of leachate processing method using percolation liquid treating system as described above, processing step are as follows:
S1. percolate is discharged into oil separator, oil separator utilizes the density feature of grease itself, the suspended oil meeting in percolate
Assemble under self gravitation effect and float, is separated in percolate；
S2. percolate is discharged into conditioning tank, is kept in conditioning tank, and the fluctuation of leachate quality water is reduced；
S3. percolate is discharged into flocculation deposition apparatus, sequentially adds PAC medicament and PAM medicament, PAC medicament is in percolate
Specific flocculent substance is formed, to particulate pollutant absorption minimum in percolate, captures, forms more apparent small particle, benefit
With the reticular structure of PAM medicament, small-molecule substance made of coagulation in percolate is captured, forms bulky grain solid object
Matter is separated from percolate；
S4. percolate is discharged into ultra micro flotation unit, and percolate realizes solid-liquid or Liquid liquid Separation in ultra micro flotation unit,
And the synchronous dross concentration for realizing high efficiency low energy consumption；
S5. the percolate gravity flow after separation enters water distribution/acidification pool, and temporary and water is carried out in water distribution/acidification pool
Matter is adjusted, and the microorganism for being added to rear end provides the nutriment of nutrition, bacteria metabolism is promoted to play certain biochemistry
Acidification；
S6. percolate is pumped into up-flow anaerobic sludge blanket, water body is uniformly introduced reactor bottom, and sewage leads to upwards
It crosses containing granule sludge/floc sludge Sludge Bed, anaerobic reaction quickly occurs during contacting with sludge, it is anti-in anaerobism
The biogas of generation should be descended to rise and cause internal water circulation；Water body is attached to sludge in the portion gas that sludge blanket reaction generates
On, and the gas not adhered to other ramps up the collection chamber for floating to top three phase separator, when the sludge for rising to surface
When striking phase reactor, bubble is separated with sludge accumulates to collection chamber, and sludge sinks to bottom after being detached from bubble immediately
Sludge Bed surface continues to react with entering organic matter of water with other pollutants, and the indoor gas of gas collection is drawn by conduit；
S7. percolate is discharged into sedimentation basin, and percolate is kept in sedimentation basin, to remove the sludge in percolate, while
Hypoxia response is carried out in sedimentation basin, with pollutant concentration in lasting reduction percolate；
S8. percolate is discharged into biological contact oxidation pond, and controlling the dissolved oxygen in hypoxia response pond is 0.4~0.6mg/L, good
Dissolved oxygen >=2mg/L in oxygen reaction tank, aerobic reaction tank refluxing portion percolate to hypoxia response pond, reflux ratio 100%
~200%；
S9. percolate is discharged into inorganic ceramic membrane, and inorganic ceramic membrane is interior to generate negative pressure by self-priming, and percolate is in suction function
Under be filtered；
S10. percolate, which is discharged into after sterilization pool carries out disinfection, is discharged into clear water reserviors, qualified discharge；
S11. the sludge of above-mentioned steps is discharged into sludge-tank, sludge is pumped into folded spiral shell machine and is separated by solid-liquid separation by pump, filtrate row
Enter adjusting/emergency lagoon.
Further, in S4 step, the diameter for the bubble that ultra micro flotation unit generates is 30~50 μm.
Further, in S5 step, the nutriment is carbon source and phosphorus source.
Compared with prior art, the beneficial effects of the present invention are:
The present invention has rational design, has and takes up little area, high treating effect, treatment effeciency height, can receive larger range fluctuation
Pollutant and operation is simple, stable water outlet.
The present invention can efficiently cut down COD, NH3The Conventional pollutions such as-N, TP, SS, and can be for high oil-containing, height containing a huge sum of money
The pollutants such as category, efficiently remove water surface activating agent, grease, heavy metal etc. by ultra micro flotation depth separation system and are difficult to give birth to
The pollutant of object degradation, the stable operation of effective guarantee rear end biochemical film and inoranic membrane；
" materializing strategy " is combined with " deep physical (ultra micro flotation depth separation system) ", so that water body is in front end energy
It is enough to realize " and oxygen-anaerobic-aerobic-and oxygen " environment transition well, promote the maximized front-end processing of pollutant, greatly drops
The low load of aftertreatment systems, the stable operation of effective guarantee total system reduce whole water body processing difficulty.
The effective acid and alkali-resistance of the inorganic mechanical ceramic membrane in end, high temperature resistant and chemical stability in extreme circumstances, Neng Gouyou
Effect has extremely strong rigidity to various complicated water quality, can be effective against it is high-intensitive wash away, internal high negative pressure, height
The harsh environment of positive pressure, can long-term negative pressure, indeformable in positive pressure work, greatly extend whole system service life and
Reduce operation expense.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the schematic block diagram for the penetrating fluid treatment system that the embodiment of the present invention one provides；
Appended drawing reference: 1- inlet channel, 2- oil separator, 3- conditioning tank, 4- flocculation plant, 4a-PAC reactor tank, 4b-PAM are anti-
Answer tank, 5- ultra micro flotation unit, 6- water distribution/acidification pool, 7- up-flow anaerobic sludge blanket, 7a- up-flow anaerobic sludge blanket ontology,
7b- sludge reflux tank, 8- sedimentation basin, 9- biological contact oxidation pond, 9a- hypoxia response pond, 9b- aerobic reaction tank, the inorganic pottery of 10-
Porcelain film, 11- sterilization pool, 12- clear water reserviors, 13- sludge treating system, 13a- sludge-tank, 13b- fold spiral shell machine, 14- Automatic Dosing system
System, 15- turn round blower.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.
For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment one
As shown in Figure 1, a kind of percolation liquid treating system, including sequentially connected oil separator 2, conditioning tank 3, flocculation sedimentation dress
Set 4, ultra micro flotation unit 5, water distribution/acidification pool 6, up-flow anaerobic sludge blanket 7, sedimentation basin 8, biological contact oxidation pond 9, inorganic
Ceramic membrane 10, sterilization pool 11 and clear water reserviors 12.
In some embodiments, the flocculation deposition apparatus 4 includes PAC reactor tank 4a and PAM reactor tank 4b, the PAC
Reactor tank 4a and PAM reactor tank 4b is equipped with automatic medicament feeding system 13, and PAC reactor tank 4a is set to before PAM reactor tank 4b, PAC
Reactor tank 4a is connect with the conditioning tank 3, and PAM reactor tank 4b is connect with the ultra micro flotation unit 5；Using the above design, have
The degree of automation for increasing device of effect, reduces the investment of human cost.
In some embodiments, the up-flow anaerobic sludge blanket 7 include up-flow anaerobic sludge blanket ontology 7a and to
The upflow anaerobic sludge is connected to the sludge outlet of sludge reflux tank 7b, the sludge reflux tank 7b that sludge flows back
The sludge inlet of bed ontology 7a is to will be in sludge reflux to up-flow anaerobic sludge blanket ontology 7a；Sludge reflux tank 7b's enters liquid
The liquid outlet of mouth connection up-flow anaerobic sludge blanket ontology 7a, the liquid outlet of sludge reflux tank 7b are connected to entering for the sedimentation basin 8
Liquid mouth；Water body is rich in a large amount of organic pollutants after front end pre-processes, and has fabulous biochemical, it is contemplated that land occupation limitation,
The factors such as high density pollution object are handled, UASB using efficient UASB anaerobism procedure technology (i.e. up-flow anaerobic sludge blanket 7)
Load handling capability it is very big, have very high organic pollutant removal rate, do not need to stir, adapt to load by a relatively large margin
Impact, temperature and pH variation.
In some embodiments, the biological contact oxidation pond 9 includes several hypoxia response pond 9a and several aerobic reactions
Pond 9b, the hypoxia response pond 9a and the aerobic reaction tank 9b are arranged alternately, a hypoxia response pond 9a and one it is aerobic anti-
It answers pond 9b to form a reaction group, organize before interior hypoxia response pond 9a is set to aerobic reaction tank 9b and is equipped with to realize that group is interior
The return pipe of circulation, the return pipe are connected to the liquid outlet of the aerobic reaction tank 9b and the liquid inlet of hypoxia response pond 9a, warp
Cross UASB treated water body still containing the pollutant of higher concentration, it is special since ammonia nitrogen in sewage and content of organics are high
It is not organic nitrogen, in biodegradable organic matter, organic nitrogen can be showed in the form of ammonia nitrogen, and ammonia nitrogen is important as one
Contamination control index, it is necessary to it be handled, therefore sewage treatment uses the aerobic A/O biological contact oxidation chemical industry of multi-stage anaerobic
Skill, i.e. biochemistry pool need to be divided into A grades of ponds (i.e. hypoxia response pond 9a) and O grades of pond (i.e. aerobic reaction tank 9b) two parts.
Further, the sedimentation basin 8, biological contact oxidation pond 9 and inorganic ceramic membrane 10 are integrated in a cabinet, are adopted
With the above design, it can make percolation liquid treating system that there is smaller occupied area.
Further, including the sludge treating system 13 to handle sludge, the sludge treating system 13 include to
Collect the adjusting/emergency lagoon 3, ultra micro flotation unit 5, up-flow anaerobic sludge blanket 7, sedimentation basin 8, biological contact oxidation pond 9
With the sludge-tank 13a of sludge generated when 10 water purification of inorganic ceramic membrane and to the folded spiral shell machine 13b of mud-water separation, the sludge-tank
The sludge inlet of 13a is respectively communicated with adjusting/emergency lagoon 3, ultra micro flotation unit 5, up-flow anaerobic sludge blanket 7, sedimentation basin 8, life
The sludge outlet of object contact-oxidation pool 9 and inorganic ceramic membrane 10, the folded spiral shell machine 13b and sludge-tank 13a are connected to by pump；
The excessive mud and suspended matter that UASB, sedimentation basin 8, the rear end pond A/O generate enter sludge storage pool by bottom mud discharging mouth, then
It is mentioned by pump to folded spiral shell machine 13b and carries out mud-water separation, realized sludge condensation removal, effectively solve the handling problems of excess sludge.
Further, the inorganic ceramic membrane 10 is anisotropic membrane, 0.08~0.3 μm of the membrane aperture of inorganic ceramic membrane 10；
95% 0.1 μm of standard particle can be removed more than, in order to preferably ensure terminal stabilization be discharged, without by front end water quality,
The factors such as treatment effeciency influence, and are not limited by land used, and spy is using inorganic accurate membrane process unit.Ceramic membrane has separative efficiency
Height, effect stability, chemical stability be good, acid and alkali-resistance, organic solvent-resistant, resistance to bacterium, high temperature resistant, antipollution, high mechanical strength, regeneration
Numerous advantages such as performance is good, separation process is simple, low energy consumption, simple and convenient operation and maintenance, long service life.Inorganic ceramic membrane 10 be by
Inorganic ceramic material is prepared through special process and the anisotropic membrane of formation, unique (0.08~0.3 μm of aperture) using its surface
Gap structure makes membrane cavity generate certain negative pressure by self-priming, under the action of negative pressure, hydrone and small-molecule substance by film into
Enter disinfection unit, and by macromolecular substances effectively catching outside film, to achieve the purpose that separation, concentration.Film is in operational process
In, due to the gap structure of its own, clear water will be pumped into membrane cavity by common water pump after running certain event and carried out
Positive pressure cleaning, so as to the water-yielding capacity of stable for extended periods of time.
A kind of leachate processing method using percolation liquid treating system as above, processing step are as follows:
It should be noted that the water pollutant very high concentrations of landfill leachate, water quality and quantity moment variation, rich in high oil
The polluters such as rouge and heavy metal, it is contemplated that scene land occupation limitation can not directly carry out biochemical treatment.
S0. the filtrate that house refuse goes out through compression device depth-compression is converged through pipeline, unified collect of irrigation canals and ditches to inlet channel 1,
In this link, water monitoring is carried out by intelligent water body flow detection equipment, when sewage is flowed through from this, water will be real-time
Water inlet metering purpose is realized in record metering；
S1. percolate is discharged into oil separator 2, oil separator 2 utilizes the density feature of grease itself, the suspended oil in percolate
It can assemble under self gravitation effect and float, be separated in percolate；Suspended oil is separated with water body effectively, is greatly dropped
Injury of the low oil content to the interference of rear end equipment performance and to microorganism object greatly reduces back-end processing load；
S2. percolate is discharged into conditioning tank 3, is kept in conditioning tank 3, and the fluctuation of leachate quality water is reduced；Daily,
Rubbish monthly is all had nothing in common with each other, and changes its water quality and quantity all constantly, the water quality of this step energy effective guarantee rear end water inlet
Stablize, further decreases the fluctuation of water quality, water, while conditioning tank is also used as crucial Emergency use, effective guarantee is whole
Failure is to external influence；
S3. percolate is discharged into flocculation plant 4, sequentially adds PAC medicament and PAM medicament, and PAC medicament is formed in percolate
Specific flocculent substance to particulate pollutant absorption minimum in percolate, captures, forms more apparent particulate matter, utilize PAM medicine
The reticular structure of agent captures small-molecule substance made of coagulation in percolate, forms solid matter, divides from percolate
It separates out and；In PAC reaction tank, specific flocculent substance is formed in water by the way that coagulated agent is added, passes through unique structure
It by the minimum particulate pollutant absorption of water body, captures, forms more apparent particulate matter, while unique ionic system effectively breaks water
The balance environment of internal colloid, loses it quickly and stably generates finely ground particle substance, and then gravity flow enters flocculation basin-PAM and reacts
Pond；In flocculation basin-PAM reaction tank, using the reticular structure of organic macromolecule, effectively by small molecule made of coagulation in water body
Substance " captures, binding, constraint ", forms it into bigger solid matter, effectively can be separated from the water out；Pass through
Coagulation is added, flocculation medicament promotes water body colloid to lose original stabilising system, allow water body harmful metal ion and other parts
Harmful pollutants is separated, and is realized " Disposal of Contaminants Forward ", is further decreased the processing load of backend process；
S4. percolate is discharged into ultra micro flotation unit 5, and percolate realizes solid-liquid or liquid liquid point in ultra micro flotation unit 5
From, and the synchronous dross concentration for realizing high efficiency low energy consumption；Ultra micro flotation unit 5 can form dense without gradient in 1 second
The saturated dissolved gas water of degree, and then by unpowered bubble generating system, it is formed in water small " bubble cloud " of disperse shape, adherency
With the solid or liquid particles of hydrophobic group in package water, water-gas-particle three-phase mixed system is formed, and then forms apparent density
Less than water flocs float to the water surface, form scum layer and be stripped off, to realize solid-liquid or Liquid liquid Separation, and it is synchronous realize it is high
The dross of efficiency low energy consumption is concentrated.Wherein " bubble cloud " bubble is uniform, is 30 microns, can be by as low as 0.05 micron
Pollution is removed, and can realize up to 99.9% removal effect, synchronous removal solid suspended particles, surfactant,
Grease, organic matter, ammonia nitrogen total phosphorus, heavy metal, the pollutants such as color play efficient pretreating effect, effective protection department of biochemistry
The stable operation of system, greatly reduces back-end processing load, and depth reduces the processing difficulty of backend process；
S5. the percolate gravity flow after separation enters water distribution/acidification pool 6, carried out in water distribution/acidification pool 6 it is temporary and
Water quality adjustment, the microorganism for being added to rear end provide the nutriment of nutrition, bacteria metabolism are promoted to play certain life
Change acidification, nutriment is carbon source and phosphorus source；
S6. percolate is pumped into up-flow anaerobic sludge blanket 7, water body is uniformly introduced reactor bottom, and sewage is upward
By anaerobic reaction quickly occurring during contacting with sludge, in anaerobism containing granule sludge/floc sludge Sludge Bed
The lower biogas rising generated of reaction causes internal water circulation；Water body is attached to sludge in the portion gas that sludge blanket reaction generates
On, and the gas not adhered to other ramps up the collection chamber for floating to top three phase separator, when the sludge for rising to surface
When striking phase reactor, bubble is separated with sludge accumulates to collection chamber, and sludge sinks to bottom after being detached from bubble immediately
Sludge Bed surface continues to react with entering organic matter of water with other pollutants, and the indoor gas of gas collection is drawn by conduit；
S7. percolate is discharged into sedimentation basin 8, and percolate is kept in sedimentation basin 8, to remove the sludge in percolate, simultaneously
Hypoxia response is carried out, in sedimentation basin 8 with pollutant concentration in lasting reduction percolate；At the time of in view of front end water quality and quantity
Variability, if dealing with improperly, it will so that water outlet has partial sludge, therefore the unit and step are set, ensure sludge and water
Can steady removal, reduce rear end influent load；
S8. percolate is discharged into biological contact oxidation pond 9, and controlling the dissolved oxygen in the 9a of hypoxia response pond is 0.4~0.6mg/
Dissolved oxygen >=2mg/L in L, aerobic reaction tank 9b, aerobic reaction tank 9b refluxing portion percolate to hypoxia response pond 9a, reflux
Than being 100%~200%；In A grades of ponds, since organic concentration is higher in sewage, microorganism is in anaerobic condition, micro- at this time
Biology is aerobic-anaerobic microbe, and organic nitrogen in sewage is converted ammonia nitrogen by they, while using organic carbon source as electron donor, will
NO2-N、NO3- N is converted into N2, but also new cellular material is synthesized using part organic carbon source and ammonia nitrogen.So A grades of ponds are not only
Have the function of certain organic matter removal, mitigates the organic loading of subsequent O grades of biochemistry pool, in favor of nitrification progress, and
By the high-enriched organics in sewage, denitrification, the final eutrophication pollution for eliminating nitrogen are completed.By A grades of ponds
Biochemical action, still with the presence of a certain amount of organic matter and higher nitrogen ammonia in sewage, to make the further oxygenolysis of organic matter, together
When in the case where carbonization tends to complete situation, nitrification can be gone on smoothly, spy setting O grades of ponds.
A grades of pond water outlet gravity flows enter O grades of ponds, and the processing in O grades of ponds is completed by autotroph (nitrifier), they are utilized
Organic matter decomposes the carbon dioxide in the inorganic carbon source generated or air as nutrient source, is NO by the mineralized nitrogen in sewage2-
N、NO3-N.In each pond O grades of, there is part water body to be back to the corresponding pond A grades of in its front end and realize interior circulation, to reach anti-nitre
The purpose of change.Filler is mounted in A grades of ponds and O grades of ponds, entire biochemical treatment process is more on filler dependent on being attached to
Microorganism is planted to complete.The O grades of a part of effluent recyclings in pond enter A grades of ponds, and specific reflux ratio is adjusted according to sewage quality.
Multistage A/O process can efficiently realize the removal of the pollutants such as ammonia nitrogen, the far high level-one A/O process of efficiency.
S9. percolate is discharged into inorganic ceramic membrane 10, and inorganic ceramic membrane 10 is interior to generate negative pressure by self-priming, and percolate is in negative pressure
It is filtered under effect；
S10. percolate is discharged into sterilization pool, carries out deep layer disinfection to water body, ensures out the harmful microorganisms such as viruses in water, bacterium
It completely removes, then drains into clear water reserviors 12, so that water outlet reaches comprehensive discharge grade III Standard；
S11. the sludge of above-mentioned steps being discharged into sludge-tank 13a, sludge is pumped into folded spiral shell machine 13b and is separated by solid-liquid separation by pump,
Filtrate is discharged into adjusting/emergency lagoon 3.
In some embodiments, in S4 step, the diameter for the bubble that ultra micro flotation unit 5 generates is 30~50 μm.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of percolation liquid treating system, it is characterised in that: including sequentially connected oil separator (2), conditioning tank (3), flocculation dress
Set (4), ultra micro flotation unit (5), water distribution/acidification pool (6), up-flow anaerobic sludge blanket (7), sedimentation basin (8), biological contact oxidation
Change pond (9), inorganic ceramic membrane (10), sterilization pool (11) and clear water reserviors (12).
2. percolation liquid treating system according to claim 1, it is characterised in that: the flocculation plant (4) includes PAC reaction
Tank (4a) and PAM reactor tank (4b), the PAC reactor tank (4a) and PAM reactor tank (4b) are equipped with automatic medicament feeding system (14),
PAC reactor tank (4a) is connect with the conditioning tank (3), and PAM reactor tank (4b) is connect with the ultra micro flotation unit (5).
3. percolation liquid treating system according to claim 1, it is characterised in that: up-flow anaerobic sludge blanket (7) packet
Include up-flow anaerobic sludge blanket ontology (7a) and sludge reflux tank (7b)；The sludge outlet of the sludge reflux tank (7b) is connected to institute
The sludge inlet of up-flow anaerobic sludge blanket ontology (7a) is stated to by sludge reflux to up-flow anaerobic sludge blanket ontology (7a)
It is interior；The liquid outlet of liquid inlet connection up-flow anaerobic sludge blanket ontology (7a) of sludge reflux tank (7b), sludge reflux tank (7b)
Liquid outlet be connected to the liquid inlet of the sedimentation basin (8).
4. percolation liquid treating system according to claim 1, it is characterised in that: the biological contact oxidation pond (9) includes
Several hypoxia response ponds (9a) and several aerobic reaction tanks (9b), the hypoxia response pond (9a) and the aerobic reaction tank (9b)
It is arranged alternately, a hypoxia response pond (9a) and an aerobic reaction tank (9b) form a reaction group, organize interior hypoxia response pond
It before (9a) is set to aerobic reaction tank (9b) and is equipped with to realize the return pipe recycled in group, the return pipe connection is described good
The liquid outlet of oxygen reaction tank (9b) and the liquid inlet of hypoxia response pond (9a).
5. percolation liquid treating system according to claim 1, it is characterised in that: the sedimentation basin (8), bio-contact oxidation
Pond (9) and inorganic ceramic membrane (10) are integrated in a cabinet.
6. percolation liquid treating system according to claim 1, it is characterised in that: including the Treatment of Sludge to handle sludge
System (13), the sludge treating system (13) include to collect the conditioning tank (3), ultra micro flotation unit (5), up flow type
The dirt of the sludge generated when anaerobic mud bed (7), sedimentation basin (8), biological contact oxidation pond (9) and inorganic ceramic membrane (10) water purification
Mud sump (13a) and folded spiral shell machine (13b) to mud-water separation, sludge inlet connection conditioning tank (3) of the sludge-tank (13a),
Ultra micro flotation unit (5), up-flow anaerobic sludge blanket (7), sedimentation basin (8), biological contact oxidation pond (9) and inorganic ceramic membrane
(10) sludge outlet, the folded spiral shell machine (13b) are connected to sludge-tank (13a) by pump.
7. percolation liquid treating system according to claim 1, it is characterised in that: the inorganic ceramic membrane (10) is asymmetric
Film, the membrane aperture of inorganic ceramic membrane (10) is at 0.08~0.3 μm.
8. a kind of leachate processing method using percolation liquid treating system described in any one of claim 1 to 7, special
Sign is: processing step is as follows:
S1. percolate is discharged into oil separator (2), oil separator (2) utilizes the density feature of grease itself, the suspended oil in percolate
It can assemble under self gravitation effect and float, be separated from percolate；
S2. percolate is discharged into conditioning tank (3), is kept in conditioning tank (3), and the fluctuation of leachate quality water is reduced；
S3. percolate is discharged into flocculation plant (4), sequentially adds PAC medicament and PAM medicament, and PAC medicament forms spy in percolate
Fixed flocculent substance to particulate pollutant absorption minimum in percolate, captures, forms more apparent particulate matter, utilize PAM medicament
Reticular structure, finely ground particle substance made of coagulation in percolate is captured, formed large particulate solid matter, from percolate
In separate；
S4. percolate is discharged into ultra micro flotation unit (5), and percolate realizes solid-liquid or liquid liquid point in ultra micro flotation unit (5)
From, and the synchronous dross concentration for realizing high efficiency low energy consumption；
S5. the percolate gravity flow after separation enters water distribution/acidification pool (6), carry out in water distribution/acidification pool (6) it is temporary and
Water quality adjustment, the microorganism for being added to rear end provide the nutriment of nutrition, bacteria metabolism are promoted to play certain life
Change acidification；
S6. percolate is pumped into up-flow anaerobic sludge blanket (7), it is anti-that water body is uniformly introduced up-flow anaerobic sludge blanket (7)
Device bottom is answered, sewage is quickly sent out during contacting with sludge upwardly through containing granule sludge/floc sludge Sludge Bed
Raw anaerobic reaction, the biogas rising generated under anaerobic reaction cause internal water circulation；Water body is generated in sludge blanket reaction
Portion gas is attached on sludge, and the gas not adhered to other ramps up the collection chamber for floating to top three phase separator,
When the sludge for rising to surface strikes phase reactor, bubble is separated with sludge accumulates to collection chamber, and sludge is detached from gas
Base sludge bed surface is sunk to after bubble immediately and continues to react with entering organic matter of water with other pollutants, the indoor gas of gas collection
Body is drawn by conduit；
S7. percolate is discharged into sedimentation basin (8), and percolate is kept in sedimentation basin (8), to remove the sludge in percolate, simultaneously
Hypoxia response is carried out, in sedimentation basin (8) with pollutant concentration in lasting reduction percolate；
S8. percolate is discharged into biological contact oxidation pond (9), and the dissolved oxygen in control hypoxia response pond (9a) is 0.4~0.6mg/
L, dissolved oxygen >=2mg/L in aerobic reaction tank (9b), aerobic reaction tank (9b) refluxing portion percolate to hypoxia response pond
(9a), reflux ratio are 100%~200%；
S9. percolate is discharged into inorganic ceramic membrane (10), generates negative pressure by self-priming in inorganic ceramic membrane (10), percolate is promoted to exist
It is filtered under suction function；
S10. percolate is discharged into after sterilization pool (11) carries out disinfection and is discharged into clear water reserviors (12), qualified discharge；
S11. the sludge of above-mentioned steps being discharged into sludge-tank (13a), sludge is pumped into folded spiral shell machine (13b) and is separated by solid-liquid separation by pump,
Filtrate is discharged into conditioning tank (3).
9. leachate processing method according to claim 8, it is characterised in that: in S4 step, ultra micro flotation unit (5) is produced
The diameter of raw bubble is 30~50 μm.
10. leachate processing method according to claim 8, it is characterised in that: in S5 step, the nutriment is
Carbon source and phosphorus source.
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| CN111204921A (en) * | 2020-01-09 | 2020-05-29 | 昆山水清华环保科技有限公司 | Spraying factory sewage treatment process |
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