CN106007272A - Biochemical treatment method and apparatus for high calcium and high magnesium waste water - Google Patents
Biochemical treatment method and apparatus for high calcium and high magnesium waste water Download PDFInfo
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- CN106007272A CN106007272A CN201610658547.XA CN201610658547A CN106007272A CN 106007272 A CN106007272 A CN 106007272A CN 201610658547 A CN201610658547 A CN 201610658547A CN 106007272 A CN106007272 A CN 106007272A
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- 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
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- 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
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- 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
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- 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
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- 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
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Abstract
The invention discloses a biochemical treatment method for high calcium and high magnesium waste water. The biochemical treatment method comprises the following steps: S1) waste water pretreatment, S2) biological calcium-removal magnesium-removal anaerobic reaction, S3) pH value adjusting and biochemical calcification, magnesiation treatment, and S4) deposition and discharge of calcification and magnesiation sludge. The invention also discloses an apparatus for high calcium and high magnesium waste water. The biochemical treatment method can reduce the calcium ions and magnesium ions content in the waste water with high efficiency as well as reduce the calcium hardness in the waste water; simultaneously can reduce partial COD, increases B/C ratio, and increases the biodegradability of the waste water; avoids generation of calcium deposition phenomenon during a waste water treatment process, prevents corrosion and obstruction of pipeline equipment, and reduces influence of the calcium ions and the magnesium ions to activated sludge performance and nitrogen removal function of a biological treatment A/O system. The method has the advantages of simple process, easy operation, low requirements of technology condition, and easy control. The apparatus has the advantages of high system stability, simple structural setting, and wide application scope.
Description
Technical field
The present invention relates to a kind of high calcium, the biochemical processing method of high magnesium waste water and device, belong to technical field of waste water processing.
Background technology
High calcium, high magnesium waste water refer to the content height of calcium ion in waste water, magnesium ion, and calcium ion, the magnesium ion in waste water can be made
Become sewage disposal mesophytization processing system that doped calcium or magnesium depositional phenomenon occur, thus cause inorganic constituents in activated sludge to raise,
Sludge Property is caused to deteriorate.Additionally, calcium ion has stronger inhibitory action to nitrobacteria, have a strong impact on biological treatment A/O
The denitrification functions of system.Calcium salt, magnesium salt pipeline, the deposition of equipment surface in biological biochemistry calcification pond, can accelerate in pond simultaneously
The corrosion of pipe-line equipment and cause blocking.
In the system of biochemical treatment waste water, first should deliming demagging before waste water is carried out biochemical treatment.The most common calcium ion
Ion exchange, membrane separation process, soda tenderizer, NO is had with magnesium ion minimizing technology3PO4Or Na2HPO4The sedimentation method etc..Ion
Exchange process and membrane separation process are suitable only for the removal of low concentration of calcium ion, and the sedimentation method are because generating a large amount of deposits and easily causing solid
The secondary pollution of body refuse.Therefore, a kind of method utilizing biochemical method deliming demagging is studied, it appears particularly necessary.
Summary of the invention
For solve the deficiencies in the prior art, it is an object of the invention to provide a kind of high calcium, the biochemical processing method of high magnesium waste water and
Device, it is possible to efficiently reduce calcium ion and magnesium ion content in waste water.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that:
A kind of high calcium, the biochemical processing method of high magnesium waste water, comprise the following steps:
S1, Wastewater Pretreatment: filtered by fine fack and sedimentation tank carries out precipitation and removes the most suspended substances in high calcium, high magnesium waste water；
Maintaining pH value in waste water subsequently is 6～7；
S2, biological decalcification, de-magging anaerobic treatment: waste water after pretreatment, enter biological decalcification de-magging anaerobic reation pool, in anaerobism
Under the effect of the anaerobe in mud, carry out biological decalcification, the reaction of de-magging hydrolysis acidification；Waste water enters under the conditions of slant acidity
Enter biological decalcification de-magging anaerobic reation pool, then carry out biological decalcification anaerobic reaction by the backflow of anaerobic sludge, make wastewater pH enter one
Step reduces, and can strengthen Ca2+、Mg2+Saturation solubility in water；
S3, pH regulator and biochemical calcification, magnesiumization process: the waste water after step S2 processes enters pH regulator pond, regulates with sodium carbonate
PH, to alkalescence, carries out blast aeration in biochemical calcification magnesium pond subsequently, generates precipitation, generates calcium after anaerobic sludge adsorbs
Change, magnesium sludge settling；Supplement in waste water and substantial amounts of CO is provided2Generation precipitation, the calcium of generation, magnesium is reacted with calcium, magnesium ion
Microscopic precipitate thing generates the bigger calcification of granule, magnesium sludge settling after anaerobic sludge adsorbs；
Arrange outside S4, calcification, magnesium sludge settling: after calcification in step S3, magnesium sludge settling are separated with waste water, the outer row of precipitation,
Waste water enters subsequent treatment.
Aforementioned high calcium, the biochemical processing method of high magnesium waste water, in step S1, filtered by fine fack and add wadding in sedimentation tank
Solidifying agent precipitates so that concentration of suspension reaches below 300mg/L, maintain after removing oil removal pH value in waste water be 6.5～
6.8。
Aforementioned high calcium, the biochemical processing method of high magnesium waste water, in step S2, in biological decalcification de-magging anaerobic reation pool, temperature is
20 DEG C～35 DEG C, the response time is 4～10h, and power of agitator is 4～6W/m3；Anaerobe refers to hydrolytic bacteria and acidifying bacterium.
Aforementioned high calcium, the biochemical processing method of high magnesium waste water, in step S3, be 7.5～8.5 with sodium carbonate by pH regulator；Drum
During wind aeration, it is 3～5 1 that gas-water ratio controls, a length of 2h during blast aeration.
Aforementioned high calcium, high magnesium waste water biochemical processing method in, fine fack filter time waste water mistake grid current speed be 0.5-1.0m/s, excellent
Elect 0.8m/s as；The flocculant added in sedimentation tank is PAC or PAM.
Aforementioned high calcium, high magnesium waste water biochemical processing method in, waste water is containing calcium ion and/or magnesium ion, and COD >=300mg/L
Waste water, wherein, calcium ion concentration≤10000mg/L, magnesium ion concentration≤10000mg/L.
A kind of high calcium, the biochemical treatment apparatus of high magnesium waste water, take off including the fine fack spotter being sequentially connected with, sedimentation tank, biology
Calcium de-magging anaerobic reation pool, pH regulator pond, biochemical calcification magnesium pond, calcification magnesium mudpan and calcification magnesium Treatment of Sludge
Pond, wherein, is provided with diving mixer, is provided with aerator, calcium in biochemical calcification magnesium pond in biological decalcification de-magging anaerobic reation pool
Change in magnesium mudpan and be provided with mud scraper.
Aforementioned high calcium, high magnesium waste water biochemical treatment apparatus in, fine fack spotter is swinging fine fack spotter, fine fack
Interval of grid strip be 5mm, grid inclination angle is 75 °.
Aforementioned high calcium, high magnesium waste water biochemical treatment apparatus in, sedimentation tank is vertical sedimentation tank, is provided with mud excavationg pump bottom it.
Aforementioned high calcium, high magnesium waste water biochemical treatment apparatus in, biological decalcification de-magging anaerobic reation pool is interior circulation gallery type, pond
Middle sludge concentration > 400mg/L；The operation corner of diving mixer is at 45 ° with water (flow) direction.
Aforementioned high calcium, high magnesium waste water biochemical treatment apparatus in, flat on two long limit pool walls of biological decalcification de-magging anaerobic reation pool
Between-line spacing arranges some structure walls, and structure wall is 45 °～90 ° with the angle of the long limit pool wall of biological decalcification de-magging anaerobic reation pool,
Structure wall spacing is 0.5～1m, constructs wall high 0.5～1.5m, and thickness is 0.3～0.6m, and a length of biology of structure wall takes off
The 2/3～3/4 of the bond length of calcium de-magging anaerobic reation pool.
Aforementioned high calcium, high magnesium waste water biochemical treatment apparatus in, the spoke of peripheral effluent of intaking centered by calcification magnesium mudpan
Sedimentation tank, is provided with mud excavationg pump bottom it；Mud scraper is peripheral drive sludge scraper.
Fig. 1 is the process flow schematic diagram of the present invention.As a example by removing calcium ion, the processing method of the present invention is first by waste water
Filtered by fine fack in fine fack spotter and in sedimentation tank, add PAC (polyaluminium chloride) and/or PAM (polyacrylamide
Amine) flocculant precipitates, and remove float, subsequently enter biological decalcification de-magging anaerobic reation pool.Waste water takes off at biological decalcification
Magnesium anaerobic reation pool becomes " anaerobism water ", the biogas that the change of most important composition and states of matter is produced by anaerobic hydrolysis-acidification
Mainly comprise composition carbon dioxide (CO2) be full of and saturated.The saturated root causing " anaerobism water " performance due to carbon dioxide
This change.Calcium carbonate (CaCO3) it is slightly soluble in water, but it is easily dissolved dissolved with in the anaerobism water of carbon dioxide, and change into
Calcium bicarbonate [Ca (HCO the most soluble in water3)2].Reaction is such as following formula (1):
CaCO3(S)+H2O+CO2=Ca2++2HCO3 -(L) (1)
According to the metamorphosis of calcium in above biological decalcification anaerobic reaction conversion zone, " anaerobism water " end product is Ca2+And HCO3 -, and
With CaCO3Reversible.
Simultaneously as waste water reacts the calcium sulfate formed in biological decalcification anaerobism containing the calcium ion in sulfate ion, with water
The reduction reaction of reaction response section such as following formula (2):
CaSO4(S)+COD=H2S+Ca2++CO2↑ (2)
Therefore, the Material Form change procedure of waste water calcium in processing procedure is illustrated as shown in Figure 2.As shown in Figure 2, waste water
After entering biological decalcification de-magging anaerobic reation pool, Organic substance, under hydrolysis acidification microbial action, discharges organic acid, by waste water
Calcium change into the Ca being dissolved in water2+, promote Ca2+Dissolve.Enter back into pH regulator pond, by adding alkali (such as sodium carbonate),
Make waste water present alkalescence, carry out aerator biochemistry calcification subsequently, CO is provided in waste water2With Ca in water2+Form CaCO3Heavy
Form sediment, anaerobic sludge absorption CaCO3Form calcification sludge settling, by calcification magnesium mudpan by calcification sludge settling and waste water
Separating, calcification sludge settling discharges system after entering calcification magnesium sludge treatment pond, thus reaches waste water deliming purpose.
By EDTA titrimetry, waste water before and after processing is carried out the mensuration of calcium hardness.Result shows, during water inlet, calcium hardness is
700-800mg/L, after the inventive method processes, the calcium hardness of waste water declines 50%～70%.By below equation pair
The clearance of calcium calculates: clearance=(calcium hardness after initial calcium hardness-process)/initial calcium hardness, going of result display calcium
Except rate is up to 55%-70%.
Fig. 3 is the processing means schematic diagram of the present invention.In the present invention, fine fack spotter is swinging fine fack spotter, thin lattice
The interval of grid strip of grid is 5mm, and grid inclination angle is 75 °, and crossing grid current speed is 0.5-1.0m/s, it is preferable that crossing grid current speed is 0.8m/s.
Interval of grid strip arranges 5mm, can effectively remove float, spacing arrange excessive then float residual many, spacing arrange too small then
Extend the removal progress of float, add process time and production cost.The interval of grid strip using the present invention is improving
Except the efficiency suspended can be simultaneously reached preferable suspended substance removal effect.Grid inclination angle is 75 °, can shorten pretreatment time
Between, save production cost.Crossing grid current speed is 0.5-1.0m/s, it is preferable that crossing grid current speed is 0.8m/s.When using grid current speed it was
During 0.8m/s, while ensureing suspended substance removal speed and removal effect, can effectively slow down the sewage impact to grid, prolong
Its service life long.
Fig. 4 is biological decalcification de-magging anaerobic reation pool schematic diagram of the present invention.In the present invention the two of biological decalcification de-magging anaerobic reation pool
On the pool wall of individual long limit, parallel interval arranges some structure walls, the folder of the long limit pool wall of structure wall and biological decalcification de-magging anaerobic reation pool
Angle is 45 °～90 °, the 2/3～3/4 of the bond length of a length of biological decalcification de-magging anaerobic reation pool of structure wall.Structure wall
Setting is advantageously implemented mixing backflow.The backflow of anaerobic sludge, can extend the action time with waste water so that it is be fully contacted,
Ensure biological decalcification, the effect of de-magging anaerobic treatment, make wastewater pH reduce further, Ca can be strengthened2+、Mg2+In water
Saturation solubility.The angle of the long limit pool wall preferably employing structure wall and biological decalcification de-magging anaerobic reation pool is 60 °, constructs wall
A length of biological decalcification de-magging anaerobic reation pool bond length 70%, it is possible to realize optimal biological decalcification, de-magging anaerobism
Treatment effect, promotes treatment effeciency, saves production cost.
The invention have benefit that: a kind of high calcium of present invention offer, the biochemical processing method of high magnesium waste water, it is possible to effectively
Reduce calcium ion and magnesium ion content in waste water, reduce calcium hardness in waste water.Can degrade part COD simultaneously, promote B/C ratio
Value, improves the biodegradability of waste water.Avoid the appearance of doped calcium phenomenon in wastewater treatment process, it is therefore prevented that to pipe-line equipment
Corrosion and blocking, reduce calcium ion, magnesium ion to activated sludge performance and the impact of the denitrification functions of biological treatment A/O system.
The inventive method is simple, easily operates realization, and process conditions require low, easy to control.Assembly of the invention, system stability is high,
Structure arranges simply, applied widely.
Accompanying drawing explanation
Fig. 1 is the process flow schematic diagram of the present invention；
Fig. 2 is waste water Material Form change procedure schematic diagram of calcium in processing procedure；
Fig. 3 is processing means schematic diagram of the present invention；
Fig. 4 is biological decalcification de-magging anaerobic reation pool schematic diagram；
The implication of reference in figure: 1-fine fack spotter, 2-sedimentation tank, 3-biological decalcification de-magging anaerobic reation pool, 4-pH
Regulating reservoir, 5-biochemistry calcification magnesium pond, 6-calcification magnesium mudpan, 7-calcification magnesium sludge treatment pond, 8-submersible agitating
Machine, 9-aerator, 10-mud scraper, 11-constructs wall.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further introduced.
Embodiment 1
A kind of high calcium, the biochemical processing method of high magnesium waste water, comprise the following steps:
S1, Wastewater Pretreatment: will be containing calcium ion, and the waste water of COD >=300mg/L, wherein, calcium ion concentration≤10000mg/L,
Filtered by fine fack and in sedimentation tank, add flocculant PAC, carrying out precipitation and remove the most suspended substances in high calcium waste water,
Concentration of suspension is made to reach below 300mg/L；Maintaining pH value in waste water subsequently is 6.2～6.3；Waste water when fine fack filters
Mistake grid current speed be 0.5m/s；
S2, biological decalcification anaerobic treatment: waste water after pretreatment, enter biological decalcification de-magging anaerobic reation pool, in anaerobic sludge
Anaerobe effect under, carry out biological decalcification hydrolysis acidification reaction；Wherein temperature is 20 DEG C, and the response time is 10h,
Power of agitator is 4W/m3；Anaerobe refers to hydrolytic bacteria and acidifying bacterium；
S3, pH regulator and biochemical calcification processing: the waste water after step S2 processes enters pH regulator pond, carries out pH tune with sodium carbonate
Joint, pH regulator is 8.5, carries out blast aeration subsequently in biochemical calcification magnesium pond, and it is 31 that gas-water ratio controls, blast aeration
Shi Changwei 2h, generates CaCO3Precipitation, generates calcification sludge settling after anaerobic sludge adsorbs；
Arranging outside S4, calcification sludge settling: after in step S3, calcification sludge settling separates with waste water, the outer row of precipitation, sewage enters follow-up
Process.
Embodiment 2
A kind of high calcium, the biochemical processing method of high magnesium waste water, comprise the following steps:
S1, Wastewater Pretreatment: will be containing magnesium ion, and the waste water of COD >=300mg/L, wherein, magnesium ion concentration≤10000mg/L,
Being filtered by fine fack and add flocculant PAM in sedimentation tank, the major part carried out in precipitation removal high calcium, high magnesium waste water is hanged
Float so that concentration of suspension reaches below 300mg/L；Maintaining pH value in waste water subsequently is 6.9～7；When fine fack filters
The mistake grid current speed of waste water is 1.0m/s；
S2, biological de-magging anaerobic treatment: waste water after pretreatment, enter biological decalcification de-magging anaerobic reation pool, in anaerobic sludge
Anaerobe effect under, carry out the reaction of biological de-magging hydrolysis acidification；Wherein temperature is 35 DEG C, and the response time is 4h, stirs
Mixing power is 6W/m3；Anaerobe refers to hydrolytic bacteria and acidifying bacterium；
S3, pH regulator and biochemical magnesiumization process: the waste water after step S2 processes enters pH regulator pond, carries out pH tune with sodium carbonate
Joint, pH regulator is 7.5, carries out blast aeration subsequently in biochemical calcification magnesium pond, and it is 51 that gas-water ratio controls, blast aeration
Shi Changwei 2h, generates MgCO3Precipitation, generates magnesium sludge settling after anaerobic sludge adsorbs；
Arranging outside S4, magnesium sludge settling: after in step S3, magnesium sludge settling separates with waste water, the outer row of precipitation, sewage enters follow-up
Process.
Embodiment 3
A kind of high calcium, the biochemical processing method of high magnesium waste water, comprise the following steps:
S1, Wastewater Pretreatment: will be containing calcium ion and magnesium ion, and the waste water of COD >=300mg/L, wherein, calcium ion concentration≤
10000mg/L, magnesium ion concentration≤10000mg/L, filtered by fine fack and add flocculant PAM and PAC in sedimentation tank,
Carry out precipitation and remove the most suspended substances in high calcium, high magnesium waste water so that concentration of suspension reaches below 300mg/L；Subsequently
Maintaining pH value in waste water is 6.5～6.8；When fine fack filters, the mistake grid current speed of waste water is 0.8m/s；
S2, biological decalcification, de-magging anaerobic treatment: waste water after pretreatment, enter biological decalcification de-magging anaerobic reation pool, in anaerobism
Under the effect of the anaerobe in mud, carry out biological decalcification, the reaction of de-magging hydrolysis acidification；Wherein temperature is 30 DEG C, reaction
Time is 7h, and power of agitator is 5W/m3；Anaerobe refers to hydrolytic bacteria and acidifying bacterium；
S3, pH regulator and biochemical calcification, magnesiumization process: the waste water after step S2 processes enters pH regulator pond, carries out with sodium carbonate
PH regulator, pH regulator is 8, carries out blast aeration subsequently in biochemical calcification magnesium pond, and it is 41 that gas-water ratio controls, and air blast exposes
A length of 2h during gas, generates CaCO3Precipitation and MgCO3Precipitation, generates calcification, magnesium sludge settling after anaerobic sludge adsorbs；
Arrange outside S4, calcification, magnesium sludge settling: after calcification in step S3, magnesium sludge settling are separated with waste water, the outer row of precipitation,
Sewage enters subsequent treatment.
Embodiment 4
As it is shown on figure 3, a kind of high calcium, the biochemical treatment apparatus of high magnesium waste water, including the fine fack spotter 1 being sequentially connected with,
Sedimentation tank 2, biological decalcification de-magging anaerobic reation pool 3, pH regulator pond 4, biochemical calcification magnesium pond 5, calcification magnesium sludge settling
Pond 6 and calcification magnesium sludge treatment pond 7, wherein, be provided with diving mixer 8 in biotinylated biomolecule decalcification de-magging anaerobic reation pool 3,
Biochemical calcification, magnesium pond 5 are provided with aerator 9, calcification magnesium mudpan 6 is provided with mud scraper 10.Wherein, thin lattice
Grid spotter 1 is swinging fine fack spotter, and the interval of grid strip of fine fack is 5mm, and grid inclination angle is 75 °.Calcification magnesium
Intake centered by mudpan 6 radial-flow sedimentation tank of peripheral effluent, bottom it, be provided with mud excavationg pump；Mud scraper 10 is periphery
Transmission mud scraper.
Embodiment 5
As shown in Figure 3 and Figure 4, a kind of high calcium, the biochemical treatment apparatus of high magnesium waste water, including the fine fack scrubbing being sequentially connected with
Machine 1, sedimentation tank 2, biological decalcification de-magging anaerobic reation pool 3, pH regulator pond 4, biochemical calcification magnesium pond 5, the dirt of calcification magnesiumization
Mud sedimentation tank 6 and calcification magnesium sludge treatment pond 7, wherein, be provided with diving in biotinylated biomolecule decalcification de-magging anaerobic reation pool 3 and stir
Mix machine 8, biochemical calcification magnesium pond 5 is provided with aerator 9, calcification magnesium mudpan 6 is provided with mud scraper 10.Wherein,
Fine fack spotter 1 is swinging fine fack spotter, and the interval of grid strip of fine fack is 5mm, and grid inclination angle is 75 °.Precipitation
Pond 2 is vertical sedimentation tank, is provided with mud excavationg pump bottom it.On two long limit pool walls of biological decalcification de-magging anaerobic reation pool 3
Parallel interval arranges some structure walls 11, and structure wall 11 with the angle of the long limit pool wall of biological decalcification de-magging anaerobic reation pool 3 is
45 °, structure wall 11 spacing is 1m, constructs the high 0.5m of wall 11, and thickness is 0.3m, and a length of biology of structure wall 11 takes off
The 2/3 of the bond length of calcium de-magging anaerobic reation pool 3.
Embodiment 6
As shown in Figure 3 and Figure 4, a kind of high calcium, the biochemical treatment apparatus of high magnesium waste water, including the fine fack scrubbing being sequentially connected with
Machine 1, sedimentation tank 2, biological decalcification de-magging anaerobic reation pool 3, pH regulator pond 4, biochemical calcification magnesium pond 5, the dirt of calcification magnesiumization
Mud sedimentation tank 6 and calcification magnesium sludge treatment pond 7, wherein, be provided with diving in biotinylated biomolecule decalcification de-magging anaerobic reation pool 3 and stir
Mix machine 8, biochemical calcification magnesium pond 5 is provided with aerator 9, calcification magnesium mudpan 6 is provided with mud scraper 10.Wherein,
Fine fack spotter 1 is swinging fine fack spotter, and the interval of grid strip of fine fack is 5mm, and grid inclination angle is 75 °.Precipitation
Pond 2 is vertical sedimentation tank, is provided with mud excavationg pump bottom it.Biological decalcification de-magging anaerobic reation pool 3 is interior circulation gallery type,
Sludge concentration in pond > 400mg/L；Diving mixer 8 runs corner at 45 ° with water (flow) direction.Biological decalcification de-magging anaerobism is anti-
Answer parallel interval on two long limit pool walls in pond 3 that some structure walls 11, structure wall 11 and biological decalcification de-magging anaerobic reaction are set
The angle of the long limit pool wall in pond 3 is 90 °, and structure wall 11 spacing is 0.5m, constructs the high 1.5m of wall 11, and thickness is 0.6m,
The 3/4 of the bond length of a length of biological decalcification de-magging anaerobic reation pool 3 of structure wall 11.Calcification magnesium mudpan 6 is
The radial-flow sedimentation tank of center water inlet peripheral effluent, is provided with mud excavationg pump bottom it；Mud scraper 10 is peripheral drive sludge scraper.
Embodiment 7
As shown in Figure 3 and Figure 4, a kind of high calcium, the biochemical treatment apparatus of high magnesium waste water, including the fine fack scrubbing being sequentially connected with
Machine 1, sedimentation tank 2, biological decalcification de-magging anaerobic reation pool 3, pH regulator pond 4, biochemical calcification magnesium pond 5, the dirt of calcification magnesiumization
Mud sedimentation tank 6 and calcification magnesium sludge treatment pond 7, wherein, be provided with diving in biotinylated biomolecule decalcification de-magging anaerobic reation pool 3 and stir
Mix machine 8, biochemical calcification magnesium pond 5 is provided with aerator 9, calcification magnesium mudpan 6 is provided with mud scraper 10.Wherein,
Fine fack spotter 1 is swinging fine fack spotter, and the interval of grid strip of fine fack is 5mm, and grid inclination angle is 75 °.Precipitation
Pond 2 is vertical sedimentation tank, is provided with mud excavationg pump bottom it.Biological decalcification de-magging anaerobic reation pool 3 is interior circulation gallery type,
Sludge concentration in pond > 400mg/L；Diving mixer 8 runs corner at 45 ° with water (flow) direction.Biological decalcification de-magging anaerobism is anti-
Answer parallel interval on two long limit pool walls in pond 3 that some structure walls 11, structure wall 11 and biological decalcification de-magging anaerobic reaction are set
The angle of the long limit pool wall in pond 3 is 60 °, and structure wall 11 spacing is 0.8m, constructs the high 1.2m of wall 11, and thickness is 0.5m,
The 70% of the bond length of a length of biological decalcification de-magging anaerobic reation pool 3 of structure wall 11.Calcification magnesium mudpan 6 is
The radial-flow sedimentation tank of center water inlet peripheral effluent, is provided with mud excavationg pump bottom it；Mud scraper 10 is peripheral drive sludge scraper.
Work process: high calcium, high magnesium waste water are filtered by fine fack in fine fack spotter and adds PAC, PAM in sedimentation tank
Removing the float in high calcium, high magnesium waste water Deng flocculant so that concentration of suspension reaches below 300mg/L, regulation is pre-simultaneously
The pH value of the waste water after process is 6～7, and in sedimentation tank, mud excavationg pump interval spoil disposal, subsequently enters biological decalcification de-magging anaerobism
In reaction tank, under the effect of the anaerobe (hydrolytic bacteria and acidifying bacterium) in anaerobic sludge, carry out biological decalcification, take off
Magnesium hydrolysis acidification reacts.In biological decalcification de-magging anaerobic reation pool, diving mixer beneficially anaerobe is fully contacted with waste water,
Ensure hydrolysis acidification reaction effect.After anaerobic hydrolysis 4～10h waste water enter pH regulator pond, by sodium carbonate regulation pH to 7.5～
8.5.Enter back in biochemical calcification magnesium pond, by the effect of aerator, in waste water, provide CO2, carry out biochemical calcification, magnesium
Change reaction, generate CaCO3Precipitation, MgCO3Precipitation.Biochemical calcification, magnesiumization reaction 2h, the CaCO of generation3Precipitation, MgCO3Heavy
Form sediment after being formed calcification, magnesium sludge settling by anaerobic sludge absorption, enter calcification magnesium mudpan, realized by mud scraper
Calcification, magnesium sludge settling separate with waste water, and calcification sludge settling enters calcification magnesium sludge treatment pond, subsequently outer row, sewage
Enter subsequent treatment.
Claims (12)
1. a high calcium, the biochemical processing method of high magnesium waste water, it is characterised in that: comprise the following steps:
S1, Wastewater Pretreatment: filtered by fine fack and sedimentation tank carries out precipitation and removes the most suspended substances in high calcium, high magnesium waste water；
And to maintain pH value of waste water be 6～7；
S2, biological decalcification, de-magging anaerobic treatment: waste water after pretreatment, enter biological decalcification de-magging anaerobic reation pool, in anaerobism
Under anaerobe effect in mud, carry out biological decalcification, the reaction of de-magging hydrolysis acidification；
S3, pH regulator and biochemical calcification, magnesiumization process: the waste water after step S2 processes enters pH regulator pond, regulates with sodium carbonate
PH, to alkalescence, carries out blast aeration in biochemical calcification magnesium pond subsequently, generates precipitation, generates calcium after anaerobic sludge adsorbs
Change, magnesium sludge settling；
Arrange outside S4, calcification, magnesium sludge settling: after calcification in step S3, magnesium sludge settling are separated with waste water, the outer row of precipitation,
Waste water enters subsequent treatment.
High calcium the most according to claim 1, the biochemical processing method of high magnesium waste water, it is characterised in that: in described step S1,
Filtered by fine fack and in sedimentation tank, add flocculant and precipitate so that concentration of suspension reaches below 300mg/L, goes
Maintaining pH value of waste water after oil removal is 6.5～6.8.
High calcium the most according to claim 1, the biochemical processing method of high magnesium waste water, it is characterised in that: in described step S2,
In biological decalcification de-magging anaerobic reation pool, temperature is 20 DEG C～35 DEG C, and the response time is 4～10h, and power of agitator is 4～6W/m3；
Anaerobe refers to hydrolytic bacteria and acidifying bacterium.
High calcium the most according to claim 1, the biochemical processing method of high magnesium waste water, it is characterised in that: in described step S3,
It is 7.5～8.5 by pH regulator；During blast aeration, it is 3～5 1 that gas-water ratio controls, a length of 2h during blast aeration.
High calcium the most according to claim 2, the biochemical processing method of high magnesium waste water, it is characterised in that: waste water when fine fack filters
Mistake grid current speed be 0.5-1.0m/s, preferably 0.8m/s；The flocculant added in sedimentation tank is PAC or PAM.
6. according to the high calcium described in any one of Claims 1 to 5, the biochemical processing method of high magnesium waste water, it is characterised in that: described waste water
For containing calcium ion and/or magnesium ion, and the waste water of COD >=300mg/L, wherein, calcium ion concentration≤10000mg/L, magnesium from
Sub-concentration≤10000mg/L.
7. realize a kind of high calcium, the biochemical treatment apparatus of high magnesium waste water that method as described in any one of claim 1～6 is used, its
Be characterised by: the fine fack spotter (1) that includes being sequentially connected with, sedimentation tank (2), biological decalcification de-magging anaerobic reation pool (3),
PH regulator pond (4), biochemical calcification magnesium pond (5), calcification magnesium mudpan (6) and calcification magnesium sludge treatment pond
(7), wherein, biological decalcification de-magging anaerobic reation pool (3) is provided with diving mixer (8), biochemical calcification magnesium pond (5)
In be provided with aerator (9), calcification magnesium mudpan (6) is provided with mud scraper (10).
High calcium the most according to claim 7, the biochemical treatment apparatus of high magnesium waste water, it is characterised in that: described fine fack spotter
(1) being swinging fine fack spotter, the interval of grid strip of fine fack is 5mm, and grid inclination angle is 75 °.
High calcium the most according to claim 7, the biochemical treatment apparatus of high magnesium waste water, it is characterised in that: described sedimentation tank (2)
For vertical sedimentation tank, bottom it, it is provided with mud excavationg pump.
High calcium the most according to claim 7, the biochemical treatment apparatus of high magnesium waste water, it is characterised in that: described biological decalcification takes off
Magnesium anaerobic reation pool (3) is interior circulation gallery type, sludge concentration in pond > 400mg/L；The operation corner of diving mixer (8)
For at 45 ° with water (flow) direction.
11. according to the high calcium described in claim 7 or 10, the biochemical treatment apparatus of high magnesium waste water, it is characterised in that: described biology takes off
On two long limit pool walls of calcium de-magging anaerobic reation pool (3), parallel interval arranges some structure walls (11), structure wall (11) with
The angle of the long limit pool wall of biological decalcification de-magging anaerobic reation pool (3) is 45 °～90 °, structure wall (11) spacing be 0.5～
1m, structure wall (11) high 0.5～1.5m, thickness is 0.3～0.6m, and a length of biological decalcification de-magging of structure wall (11) is detested
The 2/3～3/4 of the bond length of oxygen reaction tank (3).
12. high calciums according to claim 7, the biochemical treatment apparatus of high magnesium waste water, it is characterised in that: described calcification magnesiumization is dirty
Intake centered by mud sedimentation tank (6) radial-flow sedimentation tank of peripheral effluent, bottom it, be provided with mud excavationg pump；Described mud scraper (10)
For peripheral drive sludge scraper.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055772A (en) * | 2017-06-02 | 2017-08-18 | 山东环发科技开发有限公司 | A kind of anaerobic organism decalcification system and decalcification method |
| CN107311391A (en) * | 2017-05-30 | 2017-11-03 | 毛强平 | A kind of processing method and processing device of paper waste |
| CN107973503A (en) * | 2017-12-11 | 2018-05-01 | 浙江大学 | Integral type granule sludge vulcanizes decalcification device and method |
| CN108168988A (en) * | 2017-11-15 | 2018-06-15 | 浙江海拓环境技术有限公司 | The assay method of ammonia nitrogen in a kind of high calcium waste water |
| CN110723863A (en) * | 2019-09-02 | 2020-01-24 | 广西博世科环保科技股份有限公司 | Calcification prevention and control method and system for anaerobic treatment of high-calcium organic wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010038791A (en) * | 1999-10-27 | 2001-05-15 | 양인모 | Paper wastewater treatment process and paper manufacturing method using the treated water therefrom |
| CN103288299A (en) * | 2013-05-26 | 2013-09-11 | 哈尔滨理工大学 | Biochemical treatment method of coal chemical industry wastewater |
| CN103351088A (en) * | 2013-08-08 | 2013-10-16 | 波鹰(厦门)科技有限公司 | Treatment and regenerative cyclic utilization device for tobacco sheet production wastewater |
| CN205933543U (en) * | 2016-08-11 | 2017-02-08 | 桂琪 | Biochemical treatment device of high calcium, high magnesium waste water |
-
2016
- 2016-08-11 CN CN201610658547.XA patent/CN106007272A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010038791A (en) * | 1999-10-27 | 2001-05-15 | 양인모 | Paper wastewater treatment process and paper manufacturing method using the treated water therefrom |
| CN103288299A (en) * | 2013-05-26 | 2013-09-11 | 哈尔滨理工大学 | Biochemical treatment method of coal chemical industry wastewater |
| CN103351088A (en) * | 2013-08-08 | 2013-10-16 | 波鹰(厦门)科技有限公司 | Treatment and regenerative cyclic utilization device for tobacco sheet production wastewater |
| CN205933543U (en) * | 2016-08-11 | 2017-02-08 | 桂琪 | Biochemical treatment device of high calcium, high magnesium waste water |
Non-Patent Citations (1)
| Title |
|---|
| 钟淳昌编: "净水厂设计", vol. 1, 中国建筑工业出版社, pages: 54 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311391A (en) * | 2017-05-30 | 2017-11-03 | 毛强平 | A kind of processing method and processing device of paper waste |
| CN107311391B (en) * | 2017-05-30 | 2019-06-18 | 中煤（北京）环保工程有限公司 | A kind of processing method and processing device of paper waste |
| CN107055772A (en) * | 2017-06-02 | 2017-08-18 | 山东环发科技开发有限公司 | A kind of anaerobic organism decalcification system and decalcification method |
| CN108168988A (en) * | 2017-11-15 | 2018-06-15 | 浙江海拓环境技术有限公司 | The assay method of ammonia nitrogen in a kind of high calcium waste water |
| CN107973503A (en) * | 2017-12-11 | 2018-05-01 | 浙江大学 | Integral type granule sludge vulcanizes decalcification device and method |
| CN110723863A (en) * | 2019-09-02 | 2020-01-24 | 广西博世科环保科技股份有限公司 | Calcification prevention and control method and system for anaerobic treatment of high-calcium organic wastewater |
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