CN110204150A - Municipal sewage mentions mark reforming technology - Google Patents
Municipal sewage mentions mark reforming technology Download PDFInfo
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- CN110204150A CN110204150A CN201910596614.3A CN201910596614A CN110204150A CN 110204150 A CN110204150 A CN 110204150A CN 201910596614 A CN201910596614 A CN 201910596614A CN 110204150 A CN110204150 A CN 110204150A
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- sewage
- water
- municipal sewage
- reforming technology
- processing
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- 239000010865 sewage Substances 0.000 title claims abstract description 57
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 238000002407 reforming Methods 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000010802 sludge Substances 0.000 claims abstract description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000005273 aeration Methods 0.000 claims description 26
- 238000010992 reflux Methods 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 230000001376 precipitating effect Effects 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 238000005185 salting out Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 201000002282 venous insufficiency Diseases 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 9
- 229920000388 Polyphosphate Polymers 0.000 abstract description 7
- 229920000037 Polyproline Polymers 0.000 abstract description 7
- 239000001205 polyphosphate Substances 0.000 abstract description 7
- 235000011176 polyphosphates Nutrition 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000011109 contamination Methods 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- C02F3/308—Biological phosphorus removal
Abstract
The invention discloses municipal sewages to mention mark reforming technology.The technique passes through the combination of AAO and MBR, by MBR, to AAO, treated that sewage has carried out intensive treatment, considerably increase the sludge volume in system, effectively improve the treatment effect of system, selecting type stage agent addition can be carried out by AAO or MBR simultaneously, for the processing higher sewage of special contamination index；Presence and its pretreatment procedure of the BAF biochemical treatment component that the present invention uses due to the second sedimentation basin are transmitted without sludge, double system for handling can be realized in this way, repeatedly drop mark processing is carried out to sewage, the advantage that can carry out emphatically polyP bacteria and denitrifying bacterium at AAO and MBR sections uses, realize processing and denitrifying efficient process, and the advantage that BAF then carries out emphatically nitrifier on the contrary uses, to reach the degradation treatment of one direction high intensity, to which the contamination index of sewage greatly reduce, and this combination mode can also greatly prolong its pot life, reduce maintenance cost.
Description
Technical field
The present invention relates to urban sewage treatment technology fields, and in particular to municipal sewage mentions mark reforming technology.
Background technique
As people's lives level is growing, Development of Urbanization is especially prominent, consequently also gives municipal refuse and sewage
Processing brings huge pressure, and the development in city will necessarily generate some dirts from family, business and other communal facilitys
Water, COD (COD), BOD (BOD), total nitrogen, ammonia nitrogen and the total phosphorus of these sewage all can be relatively high, when containing
When nitrogen quantity and the higher water quality of phosphorus content are discharged into nature, the eutrophication of water body can be easily caused, a large amount of of algae are caused
Growth and breeding, makes water quality deterioration, and ecological environment is destroyed.
But municipal sewage plant is mostly using the drop mark processing of traditional AAO method at present, though this processing mode is equal
It is more convenient that right processing cost is lower, operation is implemented, but less desirable to high target, large-scale sewage treatment drop mark,
City demanding criteria can not effectively be reached, traditional AAO method is using formula activated sludge is thoroughly mixed, wherein containing a large amount of nitre
Change bacterium, denitrifying bacterium and polyP bacteria, the period in epoch of these strains mixed growth in triangular web, nitrifier is long, yield system
Number is low, and growth rate is slow, and the period in epoch of polyP bacteria and denitrifying bacteria is short, and yield coefficient is high, and growth rate is fast.
Preferable nitrification effect is kept in system, it is necessary to carry out under conditions of nitrifier, polyP bacteria and denitrifying bacterium
It will be suppressed, the degradation rate of organic matter reduces, and organic matter generates inhibition to nitrification, lags nitration reaction, leads
Nitrate in cause system cannot completely convert degradation, and surplus sludge volume under the conditions of nitrifier is few, imitates dephosphorization
Fruit is bad, and water outlet total phosphorus is higher.
On the contrary, when system carries out under conditions of polyP bacteria and denitrifying bacterium, at this moment, polyP bacteria and denitrifying bacteria at
For dominant bacteria, the phosphor-removing effect and denitrification effect of system are obvious, and organic matter obtains fully degraded, and bacterial digestion is pressed down
System, nitrification effect are deteriorated, and are discharged ammonia nitrogen and total values of nitrogen might is higher.Therefore, it is difficult to find in single mixed system while meets
The growing environment of two kinds of degrading bacterias is unable to get ideal effluent index in sewage treatment.
Summary of the invention
It is an object of the present invention in view of the above shortcomings of the prior art, propose that municipal sewage mentions mark reforming technology, pass through
Higher sewage treatment capacity is realized in AAO processing, MBR processing and BAF processing, being used in combination for three kinds of systems.
The present invention proposes that municipal sewage mentions mark reforming technology, comprising the following steps:
S1: physical treatment, by sewage by grid, the cleaning for carrying out floating object is collected, then carries out hypostasis by thin setting pot
Cleaning is collected；
S2: the sewage after physical treatment is introduced in the first sedimentation basin, and precipitating reagent is added by chemical treatment, passes through precipitating
Agent is by the heavy metal in sewage at salting out；
Sewage after chemical treatment is successively introduced to anaerobic pond, anoxic pond and aeration tank by S3:AAO processing, is carried out pre- de-
Phosphorus drops in nitrogen, obtains pretreated water；
Pretreated water is passed through MBR module pond again and carries out strengthened denitrification drop phosphorus processing, it is heavy that second is carried out after processing by S4:MBR processing
Behind the pond of shallow lake, is strengthened and handle water；
Intensive treatment water is passed through BAF biochemistry component again and carries out biological film process, obtained filtered water, disappear simultaneously by S5:BAF processing
Change liquid to be back in anoxic pond；
S6: absorbing disinfection obtains standard water outlet after filtered water is carried out activated carbon adsorption and disinfection by ultraviolet light processing.
Further, the grid in S1 successively includes coarse rack, fine fack and film grid, the coarse rack and thin lattice
It is equipped between grid to extract and provide the inlet pumping station of sewage, is equipped between the fine fack and film grid to girt-water separation
Aerated grit chamber.
Further, further include a drum to carry out gas to the aeration tank, BAF biochemistry component and aerated grit chamber
Ventilator Room, the air blast computer room are adjustable to the gas supply of the aeration tank, BAF biochemistry component and aerated grit chamber.
Further, the aeration tank, which is equipped with, is back to anoxic pond to carry out denitrification denitrogenation for the mixed liquor of outflow
Interior reflux, reflux ratio 800%-900%.
It further, further include one to by the sludge reflux of the sludge reflux in second sedimentation basin to anaerobic pond,
Reflux ratio is 75-95%.
Further, the film purge air quantity of MBR is 18000-22000m3/h in S4.
Further, the component of BAF biochemistry described in S5 includes surge chamber, supporting layer, aeration layer, biochemical filler layer, water outlet
Layer and the outlet pipe on the water-yielding stratum, the surge chamber bottom side are equipped with the water inlet pipe to intake, water flow side
On under Xiang Weizhi.
Further, the aeration layer includes the aeration on the supporting layer to be aerated to liquid and filler
Portion and set on outside to provide the intake section of gas source, the discharge directions in the aeration portion are upward.
Further, the supporting layer includes support plate, is placed in the support filler being aerated between layer and support plate, with
And set on support plate upper opening towards the filter mouth of the surge chamber.
Further, the surge chamber is additionally provided with the backwash air supply opening to backwash.
Municipal sewage of the invention mentions mark reforming technology, which is carried out by coarse rack, fine fack, film grid setting pot
Sewage pre-treatment effectively removes more specification large volumes, large particulate matter；By chemical treatment sewage can be carried out it is preliminary at
Salt Precipitation can suitably reduce the processing pressure that sewage handles back segment in this way, reduce the consumption of back segment sludge strain, mention
The pot life of high system；By the combination of AAO and MBR, by MBR, to AAO, treated that sewage has carried out intensive treatment, greatly
The sludge volume in system is increased greatly, effectively improves the treatment effect of system, while can be selected by AAO or MBR
Formula stage agent addition is selected, for the processing higher sewage of special contamination index；The BAF biochemical treatment component that the present invention uses is due to
The presence of two sedimentation basins and its pretreatment procedure are transmitted without sludge, and double system for handling can be realized in this way and repeatedly dropped to sewage
Mark processing, the advantage that can carry out emphatically polyP bacteria and denitrifying bacterium at AAO and MBR sections use, and realize processing and denitrifying height
Effect processing, and the advantage that BAF then carries out emphatically nitrifier on the contrary uses, thus reach the degradation treatment of one direction high intensity, from
And the contamination index of sewage greatly reduces, and this combination mode can also greatly prolong its pot life, reduce maintenance
Cost.
Detailed description of the invention
Fig. 1 is the flow chart that the municipal sewage of the embodiment of the present invention mentions mark reforming technology；
Fig. 2 is the BAF biochemistry component structure diagram that the municipal sewage of the embodiment of the present invention mentions mark reforming technology.
In figure: 1- surge chamber, 11- water inlet pipe, 12- backwash air supply opening, 2- supporting layer, 21- support plate, 22- support are filled out
Material, 23- filter mouth, 31- aeration portion, 32- intake section, 4- biochemical filler layer, 41- filler, 5- water-yielding stratum, 51- outlet pipe.
Specific embodiment
For present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, various changes or modification that those skilled in the art make the present invention, this
A little equivalent forms are equally fallen in the application range claimed.Proportion in the embodiment of the present invention is by weight.
The present invention proposes that municipal sewage mentions mark reforming technology, comprising the following steps:
S1: physical treatment, by sewage by grid, the cleaning for carrying out floating object is collected, then carries out hypostasis by thin setting pot
Cleaning is collected；
S2: the sewage after physical treatment is introduced in the first sedimentation basin, and precipitating reagent is added by chemical treatment, passes through precipitating
Agent is by the heavy metal in sewage at salting out；
Sewage after chemical treatment is successively introduced to anaerobic pond, anoxic pond and aeration tank by S3:AAO processing, is carried out pre- de-
Phosphorus drops in nitrogen, obtains pretreated water；
Pretreated water is passed through MBR module pond again and carries out strengthened denitrification drop phosphorus processing, it is heavy that second is carried out after processing by S4:MBR processing
Behind the pond of shallow lake, is strengthened and handle water；
Intensive treatment water is passed through BAF biochemistry component again and carries out biological film process, obtained filtered water, disappear simultaneously by S5:BAF processing
Change liquid to be back in anoxic pond；
S6: absorbing disinfection obtains standard water outlet after filtered water is carried out activated carbon adsorption and disinfection by ultraviolet light processing.
Grid in S1 successively includes coarse rack, fine fack and film grid, is equipped between coarse rack and fine fack to take out
The inlet pumping station of sewage is taken and provided, the aerated grit chamber to girt-water separation is equipped between fine fack and film grid.
It further include an air blast computer room to carry out gas to aeration tank, BAF biochemistry component and aerated grit chamber, air blower
Room is adjustable to the gas supply of aeration tank, BAF biochemistry component and aerated grit chamber.
Aeration tank, which is equipped with, is back to interior reflux of the anoxic pond to carry out denitrification denitrogenation, reflux ratio for the mixed liquor of outflow
For 800%-900%.
It further include one to by the sludge reflux of the sludge reflux in the second sedimentation basin to anaerobic pond, reflux ratio 75-
95%。
The film purge air quantity of MBR is 18000-22000m3/h in S4.
BAF biochemistry component includes surge chamber 1, supporting layer 2, aeration layer, biochemical filler layer 4, water-yielding stratum 5 and is set in S5
Outlet pipe 51 on water-yielding stratum 5,1 bottom side of surge chamber are equipped with to the water inlet pipe 11 intake, water (flow) direction be to it is lower and on.
Aeration layer includes to the aeration portion 31 that is aerated to liquid and filler 41 and being set to outside on the supporting layer 2
To provide the intake section 32 of gas source, the discharge directions in aeration portion 31 are upward.
Supporting layer 2 includes support plate 21, is placed in the support filler 22 being aerated between layer and support plate 21, and is set to support
Filter mouth 23 of 21 upper opening of plate towards surge chamber 1.
Surge chamber 1 is additionally provided with the backwash air supply opening 12 to backwash.
Evaluation:
It is handled by municipal sewage of this technique to three Chongqing, Wuhan and Dalian different quality situations, while for big
Even (traditional AAO treatment process) treatment effect carries out Record Comparison before the transformation of certain sewage treatment plant.Test evaluation result such as table 1
(unit mg/L).
The above sewage treatment result is evaluated by standard GB/T 18918-2002, and determines grade, standard is shown in
Table 2(mg/L).
By Tables 1 and 2 it is found that the different cities that technique of the invention carries out, at the municipal sewage polluted in various degree
Reason result has reached A standard in primary standard, the very high treatment effect reached, meanwhile, the old technique of comparison tradition exists
Processing data before transformation, are not up to A standard or even part index number is secondary standard, the technique for absolutely proving the application
Creativeness with higher, the application value with higher in municipal sewage treatment.
Exemplary illustration is carried out to the embodiment of the present invention above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.All the changes and improvements etc. of all application ranges according to the present invention,
It should all fall within the scope of the patent of the present invention.
Claims (10)
1. municipal sewage mentions mark reforming technology, it is characterised in that: the following steps are included:
S1: physical treatment, by sewage by grid, the cleaning for carrying out floating object is collected, then carries out hypostasis by thin setting pot
Cleaning is collected；
S2: the sewage after physical treatment is introduced in the first sedimentation basin, and precipitating reagent is added by chemical treatment, passes through precipitating
Agent is by the heavy metal in sewage at salting out；
Sewage after chemical treatment is successively introduced to anaerobic pond, anoxic pond and aeration tank by S3:AAO processing, is carried out pre- de-
Phosphorus drops in nitrogen, obtains pretreated water；
Pretreated water is passed through MBR module pond again and carries out strengthened denitrification drop phosphorus processing, it is heavy that second is carried out after processing by S4:MBR processing
Behind the pond of shallow lake, is strengthened and handle water；
Intensive treatment water is passed through BAF biochemistry component again and carries out biological film process, obtained filtered water, disappear simultaneously by S5:BAF processing
Change liquid to be back in anoxic pond；
S6: absorbing disinfection obtains standard water outlet after filtered water is carried out activated carbon adsorption and disinfection by ultraviolet light processing.
2. municipal sewage as described in claim 1 mentions mark reforming technology, it is characterised in that: the grid in S1 successively includes
Coarse rack, fine fack and film grid are equipped with to extract and provide the inlet pumping station of sewage between the coarse rack and fine fack,
The aerated grit chamber to girt-water separation is equipped between the fine fack and film grid.
3. municipal sewage as claimed in claim 2 mentions mark reforming technology, it is characterised in that: further include one to the aeration
Pond, BAF biochemistry component and aerated grit chamber carry out the air blast computer room of gas, and the air blast computer room is biochemical to the aeration tank, BAF
The gas supply of component and aerated grit chamber is adjustable.
4. municipal sewage as described in claim 1 mentions mark reforming technology, it is characterised in that: the aeration tank, which will be equipped with, to flow out
Mixed liquor is back to interior reflux of the anoxic pond to carry out denitrification denitrogenation, reflux ratio 800%-900%.
5. municipal sewage as described in claim 1 mentions mark reforming technology, it is characterised in that: further include one to by described second
Sludge reflux of the sludge reflux to anaerobic pond in sedimentation basin, reflux ratio 75-95%.
6. municipal sewage as described in claim 1 mentions mark reforming technology, it is characterised in that: the film purge air quantity of MBR is in S4
18000-22000m³/h。
7. municipal sewage as described in claim 1 mentions mark reforming technology, it is characterised in that: the component packet of BAF biochemistry described in S5
It includes surge chamber (1), supporting layer (2), aeration layer, biochemical filler (41) layer (4), water-yielding stratum (5) and is set to the water-yielding stratum (5)
On outlet pipe (51), surge chamber (1) bottom side is equipped with to the water inlet pipe (11) intake, water (flow) direction be to lower and
On.
8. municipal sewage as claimed in claim 7 mentions mark reforming technology, it is characterised in that: the aeration layer includes set on described
The aeration portion (31) that is aerated on supporting layer (2) to the filler (41) to liquid and biochemical filler layer (4) and it is set to outside
To provide the intake section (32) of gas source, the discharge directions of the aeration portion (31) are upward.
9. municipal sewage as claimed in claim 7 mentions mark reforming technology, it is characterised in that: the supporting layer (2) includes support
Plate (21), the support filler (22) being placed between the aeration layer and support plate (21), and it is set to support plate (21) upper opening
Towards the filter mouth (23) of the surge chamber (1).
10. municipal sewage as claimed in claim 7 mentions mark reforming technology, it is characterised in that: the surge chamber (1) is additionally provided with use
With the backwash air supply opening (12) of backwash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596614.3A CN110204150A (en) | 2019-07-04 | 2019-07-04 | Municipal sewage mentions mark reforming technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596614.3A CN110204150A (en) | 2019-07-04 | 2019-07-04 | Municipal sewage mentions mark reforming technology |
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| CN110204150A true CN110204150A (en) | 2019-09-06 |
Family
ID=67796084
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| CN201910596614.3A Pending CN110204150A (en) | 2019-07-04 | 2019-07-04 | Municipal sewage mentions mark reforming technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577337A (en) * | 2019-10-11 | 2019-12-17 | 浙江蓝湖环保有限公司 | Domestic sewage treatment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101913734A (en) * | 2010-08-12 | 2010-12-15 | 河海大学 | A/A-MBR intensified combined device for denitriding and dephosphorizing and process thereof |
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