CN107759022A - A kind of domestic sewage processing system containing heavy metal - Google Patents
A kind of domestic sewage processing system containing heavy metal Download PDFInfo
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- CN107759022A CN107759022A CN201711130722.9A CN201711130722A CN107759022A CN 107759022 A CN107759022 A CN 107759022A CN 201711130722 A CN201711130722 A CN 201711130722A CN 107759022 A CN107759022 A CN 107759022A
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- processing system
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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
- 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
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
-
- 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
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
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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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The present invention relates to a kind of domestic sewage processing system containing heavy metal, including aerating oxidation area, filler reaction zone and Ecological Restoration Area are contacted between the gravel set gradually along water (flow) direction；Aerating oxidation area is contacted between the gravel and is filled with the porous gravel of grading, bottom is provided with aeration tube, and internal dispensing activated sludge；Multi-level deflector plate and renewable sorptive filler are provided with the filler reaction zone.The beneficial effects of the invention are as follows：By the way of the combination of physics biofacies, the sanitary sewage containing heavy metal is handled using contact aerating oxidation area and filler reaction zone between gravel, finally sets up perfect biological chain circulation, realizes the deep purifying of sewage；This sewage disposal system has the advantage of efficient, low consumption, environmental protection and sustainable processing, efficiently solves the problems, such as sewage purification, non-secondary pollution, and have landscape effect concurrently.
Description
Technical field
At environmental protection and technical field of sewage, more particularly to a kind of sanitary sewage containing heavy metal
Reason system.
Background technology
With the continuous development of economic society, urban sewage discharge total amount is continuously increased, and river and lake etc. are by serious
Pollution, aqueous bio diversity destroyed, so that the ecosystem loses self―sustaining, the ability of self-control, finally
Cause being further exacerbated by for environmental problem.
Traditional sewage disposal technology has artificial changing water, chemical agent coagulating treatment and circulating purification outside processing etc., still,
The drawbacks of different all be present in it；Such as：Artificial changing water needs manually to clean pond, and labor intensity is big, and wastes substantial amounts of
Water resource；Chemical agent coagulating treatment not only needs coagulation mixing plant and the high coagulating sedimentation basin of construction cost, can also
The sludge that a large amount of chemical coagulators are formed is produced, causes secondary pollution；Circulating purification outside processing needs build various outside pond
Sewage treatment facility, not only construction cost is high, and running high energy consumption, operational management complexity.
Ecological reestablishment, which is primarily referred to as capacity of self-regulation by the ecosystem and organizational capacity, makes it to orderly
Direction is developed；Or the self-recovery ability using the ecosystem, it is aided with artificial measures, makes the ecosystem destroyed
System progressively recovers, or the ecosystem is developed in terms of benign cycle；Compared to conventional processing technique, its have investment-operation into
Advantage, the methods of generally use artificial swamp such as this low, persistent high efficiency and maintenance cost are low are handled.However, when water inlet is dirty
Dye thing load more than artificial swamp receive dirty total capacity when, the ecosystem inside artificial swamp can be led by serious destruction
Bio-diversity is caused to reduce, treatment effect is deteriorated.
The content of the invention
It is an object of the present invention to provide a kind of domestic sewage processing system containing heavy metal, solves on present in prior art
State problem.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
Contact aeration oxygen between a kind of domestic sewage processing system containing heavy metal, including the gravel set gradually along water (flow) direction
Change area, filler reaction zone and Ecological Restoration Area；Aerating oxidation area is contacted between the gravel and is filled with the porous gravel of grading, bottom is set
There are aeration tube, and internal dispensing activated sludge；Multi-level deflector plate is provided with the filler reaction zone and renewable adsorptivity is filled out
Material.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the material of the porous gravel of the grading is volcanic rock, the value model of the particle diameter of the porous gravel of grading
Enclose for 30mm to 110mm.
Further, the activated sludge is that city domestic sewage treatment plant AAO oxidation ditch process oxidation ditches end active is dirty
Mud.
Further, the renewable sorptive filler is modified loofah sponge.
Further, the preparation flow of the modified loofah sponge comprises the following steps：
Step A1, use solubility to treat modified loofah sponge progress alkali for 30% KOH solution and change；
Step A2, the luffa to be modified is cleaned to neutrality using deionized water；
Step A3, the luffa to be modified is modified using triethylamine；
Step A4, the luffa to be modified is washed, filtered and dried successively, so that the modified sponge gourd is made
Network.
Further, water plant and fish bivalves aquatic animal are provided with the Ecological Restoration Area.
Further, the water plant includes watermifoil, reed, cattail, rush, Lythrum salicaria, again canna glauca, power
Three kinds or more in colored, evergreen iris, yellow flag, copper coin grass, lotus, and submerged plant, emergent aquactic plant, floatingleaved plant
It is collocated with each other plantation；The fish bivalves aquatic animal is included in bighead, grass carp, mandarin fish, black carp, spiral shell, freshwater mussel, Corbicula fluminea, shrimp, water earthworm
Four or more, and a vegetarian animal is combined with carnivority animal, and fish are combined with bivalves.
Further, aerating oxidation area delivery port is contacted between the gravel and is located at bottom, and with the bottom of the filler reaction zone
Water inlet is connected, and the filler reaction zone delivery port is located at top, and is connected with the top water inlet of the Ecological Restoration Area.
Further, the span that the hydraulic detention time in aerating oxidation area is contacted between the gravel is 2h to 4h；The exposure
The mode of operation of tracheae is intermittent aerating pattern, and the spring, the summer, the autumn, the four seasons in winter stop expose ratio respectively 3:1、1:1、3:1、1:3.
The beneficial effects of the invention are as follows：
(1) water contacts aerating oxidation area between entering gravel, through contacting micro- life in activated sludge inside aerating oxidation area between gravel
The oxidation of thing flora and section filtering, precipitation, remove the BOD in water5(five-day BOD), NH4 +- N (ammonia
Nitrogen) and SS (solid suspension)；
(2) aerating oxidation area's water outlet is contacted between gravel to enter filler reaction zone, filled out through renewable adsorptivity in filler reaction zone
The suction-operated of material, remove Cu in water removal2+、Fe3+、Zn2+Etc. heavy metal ion；
(3) water outlet of filler reaction zone enters Ecological Restoration Area, through Ecological Restoration Area water plant and fish bivalves aquatic animal
Deep purifying, can remove most of polluter in water, water outlet reaches the class standard of landscape water body III；
By the way of physics-biofacies combines, using contact aerating oxidation area between gravel and filler reaction zone to containing a huge sum of money
The sanitary sewage of category is handled, and finally sets up perfect biological chain circulation, realizes the deep purifying of sewage；This sewage disposal system
System with efficiently, low consumption, environmental protection and sustainable processing advantage, efficiently solve the problems, such as sewage purification, non-secondary pollution, and simultaneous
Has landscape effect.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the domestic sewage processing system containing heavy metal of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, aerating oxidation area is contacted between gravel, 11, aeration tube, 12, the porous gravel of grading, 13, air blower, 2, filler reaction
Area, 21, renewable sorptive filler, 22, Multi-level deflector plate, 3, Ecological Restoration Area, 31, water plant, 32, fish bivalves it is aquatic dynamic
Thing.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in figure 1, be a kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 1, including along water
Aerating oxidation area 1, filler reaction zone 2 and Ecological Restoration Area 3 are contacted between the gravel that stream direction is set gradually；Contact aeration between the gravel
Zoneofoxidation 1 is filled with the porous gravel 12 of grading, and bottom is provided with aeration tube 11, and internal dispensing activated sludge；The filler is anti-
Answer and Multi-level deflector plate 22 and renewable sorptive filler 21 are provided with area 2.When Multi-level deflector plate 22 is effectively increased hydraulic retention
Between, and then increase the adsorption effect of renewable sorptive filler 21.
Aerating oxidation area 1 and filler reaction zone 2 are contacted between the front end of Ecological Restoration Area setting gravel；Contact aeration oxygen between gravel
Change area 1 and be filled with the porous gravel 12 of grading, bottom is provided with aeration tube 11, and internal dispensing activated sludge, in activated sludge
Microorganism can adhere to the porous surface of gravel 12 of grading, form one layer of biomembrane, under aeration effect, realize to being polluted in sewage
The removal of thing；Renewable sorptive filler 21 is filled with filler reaction zone 2, using renewable sorptive filler 21 to a huge sum of money
The suction-operated of category and pollutant, realizes the purification to sewage；By contacting aerating oxidation area 1 and filler reaction zone 2 between gravel
Two stages for the treatment of, make wastewater pollutants load the receiving in dirty total capacity in Ecological Restoration Area 3 of inflow Ecological Restoration Area 3, utilize
Amole and animal in Ecological Restoration Area 3 etc. carry out purified treatment to sewage；This sewage disposal system has efficient, low
Consumption, the advantage of environmentally friendly and sustainable processing, the ecological purification of sewage, non-secondary pollution are efficiently solved the problems, such as, and have landscape concurrently
Effect.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 2, on the basis of embodiment 1, institute
It is modified loofah sponge to state renewable sorptive filler 21.Luffa is a kind of natural bio-carrier, to microorganism without any poison
Evil effect；After being modified to it, its heavy metal and N, P adsorption capacity are enhanced；And change to reaching certain adsorbance
Property luffa carry out renewable processing, such as：Solubility is used to soak this modified loofah sponge for 0.1% HC l solution every half a year
6h, then it is washed, filter and dried, it can effectively recover its adsorptivity, so as to realize that regeneration cycle uses, there is environmental protection, height
Effect and the sustainable advantage used.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 3, on the basis of embodiment 2, institute
The preparation flow for stating modified loofah sponge comprises the following steps：
Step A1, use solubility to treat modified loofah sponge progress alkali for 30% KOH solution and change；
Step A2, the luffa to be modified is cleaned to neutrality using deionized water；
Step A3, the luffa to be modified is modified using triethylamine；
Step A4, the luffa to be modified is washed, filtered and dried successively, so that the modified sponge gourd is made
Network.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 4, in any implementation of embodiment 1 to 3
On the basis of example, the activated sludge is city domestic sewage treatment plant AAO oxidation ditch process oxidation ditch end active sludge, its
Microorganism species with maturation, pollutant that can effectively in purifying water body, clean effect are good.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 5, in any implementation of embodiment 1 to 4
On the basis of example, the material of the porous gravel 12 of grading is volcanic rock, and the porous gravel of grading fully contacts with sewage, can not only
Pollutant in enough absorption, filter sewage, additionally it is possible to play micro- exposure oxygen-supplying function, further enhance and gone to dirty water pollutant
Removing solid capacity.The span of the particle diameter of the porous gravel 12 of grading is 30mm to 110mm, larger specific surface area can increase with
The contact surface of sewage, increase the attachment surface of microorganism, strengthen the removal ability to dirty water pollutant.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 6, in any implementation of embodiment 1 to 5
On the basis of example, water plant 31 and fish bivalves aquatic animal 32 are provided with the Ecological Restoration Area 3.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 7, on the basis of embodiment 6, institute
Stating water plant 31 includes watermifoil, reed, cattail, rush, Lythrum salicaria, canna glauca, thaliadeabata, evergreen iris, Huang
Three kinds or more in calamus, copper coin grass, lotus, and submerged plant, emergent aquactic plant, floatingleaved plant are collocated with each other plantation,
Such as：Including watermifoil, reed, Lythrum salicaria, canna glauca and lotus, detergent power is improved；The fish bivalves aquatic animal
32 include four or more in bighead, grass carp, mandarin fish, black carp, spiral shell, freshwater mussel, Corbicula fluminea, shrimp, water earthworm, and a vegetarian animal
It is combined with carnivority animal, fish are combined with bivalves, it may for example comprise grass carp, mandarin fish, spiral shell, Corbicula fluminea and water earthworm, realize phase
Mutually restrict, form complete food chain, maintain the normal operation of ecological circulation.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 8, in any implementation of embodiment 1 to 7
On the basis of example, the bottom that aerating oxidation area 1 is contacted between the gravel connects setting with the bottom of the filler reaction zone 2, described
The top of filler reaction zone 2 connects setting with the top of the Ecological Restoration Area 3, makes the water outlet in contact aerating oxidation area 1 between gravel
Enter filler reaction zone 2 from bottom, the water outlet of filler reaction zone 2 enters Ecological Restoration Area 3 from top, forms baffling, increases water
The power residence time, and then strengthen the removal ability to dirty water pollutant.
A kind of domestic sewage processing system containing heavy metal described in the embodiment of the present invention 9, in any implementation of embodiment 1 to 8
On the basis of example, treatment sewage flow velocity is controlled, it is contacted taking for the hydraulic detention time in aerating oxidation area 1 between the gravel
Value scope is 2h to 4h；And the treatment sewage is set to contact aerating oxidation area 1, filler reaction zone 2 between flowing into the gravel successively
With Ecological Restoration Area 3；The mode of operation of the aeration tube 11 is intermittent aerating pattern, and the spring, the summer, the autumn, the four seasons in winter stop expose ratio
Respectively 3:1、1:1、3:1、1:3.
Reasonable adjusting treatment sewage flow velocity, it is set to contact the value of the hydraulic detention time in aerating oxidation area 1 between gravel
Scope is 2h to 4h, and the removal to dirty water pollutant is effectively ensured.And use intermittent aerating pattern, formed it is aerobic with anoxic or
Anaerobic environment, contribute to the removal to N, P in sewage；And stop exposing ratio according to seasonal variations adjustment, it is effectively ensured and removes in sewage
While pollutant, aeration energy consumption is reduced, saves the energy.
Preferred embodiment：
Sewage disposal system：
Contacted between gravel and volcanic rock material is filled with aerating oxidation area 1, the level that particle diameter span is 30mm to 110mm
With porous gravel, oxidation ditch end active sludge in city domestic sewage treatment plant AAO oxidation ditch process, and bottom are launched in inside
It is provided with aeration tube 11, the external air blower 13 of aeration tube 11；Aeration tube 11 is arranged at the bottom in contact aerating oxidation area 1 between gravel,
Contribute to the percussion using bubble caused by aeration tube 11, sludge unnecessary in aerating oxidation area 1 is contacted between cleaning gravel.
Multi-level deflector plate 22 and modified loofah sponge, and the preparation flow bag of this modified loofah sponge are provided with filler reaction zone 2
Include following steps：
Step A1, use solubility to treat modified loofah sponge progress alkali for 30% KOH solution and change；
Step A2, the luffa to be modified is cleaned to neutrality using deionized water；
Step A3, the luffa to be modified is modified using triethylamine；
Step A4, the luffa to be modified is washed, filtered and dried successively, so that the modified sponge gourd is made
Network.
Water plant 31 and fish bivalves aquatic animal 32 are provided with Ecological Restoration Area 3；The water plant 31 includes fox-brush
In algae, reed, cattail, rush, Lythrum salicaria, canna glauca, thaliadeabata, evergreen iris, yellow flag, copper coin grass, lotus
Three kinds or more, and submerged plant, emergent aquactic plant, floatingleaved plant are collocated with each other plantation；The fish bivalves aquatic animal 32
Including four or more in bighead, grass carp, mandarin fish, black carp, spiral shell, freshwater mussel, Corbicula fluminea, shrimp, water earthworm, and a vegetarian animal with
Carnivority animal is combined, and fish are combined with bivalves.
The bottom that aerating oxidation area 1 is contacted between the gravel connects setting, the filler with the bottom of the filler reaction zone 2
The top of reaction zone 2 connects setting with the top of the Ecological Restoration Area 3.
Sewage disposal process：
Treatment sewage flow velocity is adjusted, it is contacted the value of the hydraulic detention time in aerating oxidation area 1 between the gravel
Scope is 2h to 4h；And the treatment sewage is set to contact aerating oxidation area 1, the and of filler reaction zone 2 between flowing into the gravel successively
Ecological Restoration Area 3.The mode of operation of the aeration tube 11 is intermittent aerating pattern, and the spring, the summer, the autumn, the four seasons in winter stop expose score
Wei 3:1、1:1、3:1、1:3.
Use solubility to soak this modified loofah sponge 6h for 0.1% HCl solution every half a year, then it is washed, filter and
Reused after drying, effectively recover its adsorptivity.Cleared up every half a year contacting aerating oxidation area 1 gravel, avoid living
Property sludge in microbial reproduction and growth cause to contact aerating oxidation area 1 between gravel and block.Periodically to the aquatic plant of Ecological Restoration Area 3
Thing 31 and fish bivalves aquatic animal 32 are cleared up, and are avoided quantity excessive, are destroyed complete food chain, are influenceing ecological circulation just
Often operation.
This most preferred embodiment, sewage contact aerating oxidation area 1 between entering gravel, through contacting activity in aerating oxidation area 1 between gravel
The oxidation of microorganism species in sludge, and filtering and the precipitation in aerating oxidation area 1 are contacted between gravel, it can remove sewage
In about 65% BOD5(five-day BOD), about 65% NH4 +(solid suspends by-N (ammonia nitrogen) and about 80% SS
Thing)；Sewage enters filler reaction zone 2 from the bottom that aerating oxidation area 1 is contacted between gravel, through the modification sponge gourd in filler reaction zone 2
The suction-operated of network, it can remove Cu in sewage2+、Fe3+、Zn2+Etc. heavy metal ion；Sewage enters from the top of filler reaction zone 2 again
Enter Ecological Restoration Area 3, the deep purifying through the water plant 31 in Ecological Restoration Area 3 and fish bivalves aquatic animal 32, can remove
Most of pollutant in sewage, water outlet is up to the class standard of landscape water body III.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (9)
1. a kind of domestic sewage processing system containing heavy metal, it is characterised in that including between the gravel that is set gradually along water (flow) direction
Contact aeration zoneofoxidation (1), filler reaction zone (2) and Ecological Restoration Area (3)；Aerating oxidation area (1) filling is contacted between the gravel
There is the porous gravel of grading (12), bottom is provided with aeration tube (11), and internal dispensing activated sludge；The filler reaction zone (2)
Inside it is provided with Multi-level deflector plate (22) and renewable sorptive filler (21).
2. a kind of domestic sewage processing system containing heavy metal according to claim 1, it is characterised in that the grading is porous
The material of gravel (12) is volcanic rock, and the span of the particle diameter of the porous gravel of grading (12) is 30mm to 110mm.
A kind of 3. domestic sewage processing system containing heavy metal according to claim 1, it is characterised in that the activated sludge
For city sewage plant AAO oxidation ditch process oxidation ditch end active sludge.
A kind of 4. domestic sewage processing system containing heavy metal according to claim 1, it is characterised in that the renewable suction
Attached property filler (21) is modified loofah sponge.
A kind of 5. domestic sewage processing system containing heavy metal according to claim 4, it is characterised in that the modified sponge gourd
The preparation flow of network comprises the following steps：
Step A1, use solubility to treat modified loofah sponge progress alkali for 30% KOH solution and change；
Step A2, the luffa to be modified is cleaned to neutrality using deionized water；
Step A3, the luffa to be modified is modified using triethylamine；
Step A4, the luffa to be modified is washed, filtered and dried successively, so that the modified loofah sponge is made.
A kind of 6. domestic sewage processing system containing heavy metal according to claim 1, it is characterised in that the restoration of the ecosystem
Water plant (31) and fish bivalves aquatic animal (32) are provided with area (3).
A kind of 7. domestic sewage processing system containing heavy metal according to claim 6, it is characterised in that the water plant
(31) watermifoil, reed, cattail, rush, Lythrum salicaria, canna glauca, thaliadeabata, evergreen iris, yellow flag, copper coin are included
Three kinds or more in grass, lotus, and submerged plant, emergent aquactic plant, floatingleaved plant are collocated with each other plantation；The fish bivalves
Aquatic animal (32) includes four or more in bighead, grass carp, mandarin fish, black carp, spiral shell, freshwater mussel, Corbicula fluminea, shrimp, water earthworm, and
A vegetarian animal is combined with carnivority animal, and fish are combined with bivalves.
8. according to a kind of any domestic sewage processing system containing heavy metal of claim 1 to 7, it is characterised in that described
Aerating oxidation area (1) delivery port is contacted between gravel and is located at bottom, and is connected with the bottom water inlet of the filler reaction zone (2), institute
State filler reaction zone (2) delivery port and be located at top, and be connected with the top water inlet of the Ecological Restoration Area (3).
9. a kind of domestic sewage processing system containing heavy metal according to claim 1, it is characterised in that the gravel is indirect
The span for touching the hydraulic detention time of aerating oxidation area (1) is 2h to 4h；Between the mode of operation of the aeration tube (11) is
Have a rest aeration pattern, and the spring, the summer, the autumn, the four seasons in winter stop expose ratio respectively 3:1、1:1、3:1、1:3.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658239A (en) * | 2018-08-09 | 2018-10-16 | 中国科学院南京地理与湖泊研究所 | Bionical Submerged plant communities and its Ecology ameliorative way |
| CN109592798A (en) * | 2019-02-14 | 2019-04-09 | 中国恩菲工程技术有限公司 | The Ecosystem restoration system and ecological restoring method of natural water |
| CN113387516A (en) * | 2021-06-25 | 2021-09-14 | 江苏师范大学 | Sewage ecological treatment device |
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