CN205710299U - A kind of flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment - Google Patents
A kind of flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment Download PDFInfo
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- CN205710299U CN205710299U CN201620340595.XU CN201620340595U CN205710299U CN 205710299 U CN205710299 U CN 205710299U CN 201620340595 U CN201620340595 U CN 201620340595U CN 205710299 U CN205710299 U CN 205710299U
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Abstract
The utility model discloses flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, described device is sequentially connected in series connection is formed by flow-type film mud coupling pond, sedimentation tank, aerobic nitrification biofilter, chemical dephosphorization pond, described sedimentation tank couples with flow-type film mud and is provided with sludge refluxing apparatus between pond, and described aerobic nitrification biofilter couples with flow-type film mud and is provided with nitrification liquid reflux between pond.This utility model device can effectively solve that, conventional aeration biofilter pretreatment insufficient to former water utilization of carbon source be complicated and the backwash problem such as frequently, improves Nitrogen/Phosphorus Removal, has the feature such as low cost, biological multiplication concurrently.
Description
Technical field
This utility model belongs to water-treatment technology field, is specifically related to a kind of denitrogenation dephosphorizing wastewater treatment equipment.
Background technology
BAF (BAF) is the New biological membrane method sewage treatment process that developed recently gets up, and has efficient
Removal of carbon and nitrogen usefulness, floor space are little, operating cost is low, without features such as second ponds.But, biological aerated filter process is to water inlet
Concentration of suspension require higher, need to carry out the pretreatment of complexity, such as conventional coagulating sedimentation, membrane filtration or other combination
Technique, this will increase technological process and the operational management difficulty of BAF undoubtedly, and can go simultaneously in preprocessing process
Except substantial amounts of Organic substance (general COD clearance 40%～70%), this to reach up-to-date country row for controlling water outlet total nitrogen
For putting the biological aerated filter process of standard, too much organic removal will cause the carbon source during denitrification denitrogenation not
Foot.Southern area problem is particularly acute, and southern former water COD/TN is the most on the low side, substantial amounts of has if eliminating in preprocessing process
Machine thing, typically requires during follow-up denitrification denitrogenation and adds Organic substance carbon source (glucose, methanol, sodium acetate etc.) and mend
Fill Organic substance, the problem that Organic substance carbon source can not be fully utilized and traditional pretreatment causes in former water, not only
Add operating cost, result also in CO2 emissions simultaneously and be greatly increased.Additionally, at denitrification and denitrogenation biological filter
In the group technology of aerobic nitrification biofilter, although the water inlet float that pretreatment can reduce denitrification and denitrogenation biological filter is dense
Degree, but the float in pretreatment water outlet is the highest, causes denitrification denitrogenation pond resistance in running constantly to rise, and needs
Carry out backwash continually to keep the stable operation of denitrification and denitrogenation biological filter.Additionally, the entering of follow-up aerobic biofilter
Organic concentration in water may result in the amount reproduction of heterotrophic bacteria, it is suppressed that the nitrobacteria Nitrification to ammonia nitrogen, increases simultaneously
Add backwash frequency, Biomass and bioactive recovery cycle mistake in backwash is more easily caused aerobic biofilter frequently
Long, this reduces the treatment efficiency of structures undoubtedly and adds management difficulty and operating cost.
In traditional biological aerated filter process, the removal effect of phosphorus is the most poor, needs to coordinate employing preposition or rearmounted
Chemical dephosphorization measure, in the engineering of preposition biological phosphate-eliminating, not only orthophosphate can consume substantial amounts of Dephosphorization reagent, big in sewage
The total phosphorus of amount is removed, and in waste water, the content of low concentration phosphorus is highly detrimental to the growth of microorganism, has had a strong impact on follow-up
The usefulness of biological treatment, simultaneously in the engineering of preposition biological phosphate-eliminating, the existence of a large amount of fine particles, colloid or Organic substance etc. is also
Can consume substantial amounts of Dephosphorization reagent, this adds the operating cost of sewage disposal undoubtedly.Therefore, according to denitrogenation dephosphorizing principle, carry
High volumetric loading, Appropriate application sewage carbon source, the dosage of minimizing medicament, reduction sewage disposal energy consumption, raising denitrogenation dephosphorizing effect
Rate is primary goal and the R&D direction that current Novel sewage processes technique.
Summary of the invention
This utility model purpose is to provide a kind of flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, this device
Can successfully solve and tradition biological aerated filter process exists utilization of carbon source in former water is insufficient, Dephosphorization reagent dosage mistake
The problems such as greatly, biofilter backwashing period is frequent, denitrogenation dephosphorizing usefulness is low.
For achieving the above object, this utility model flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, described
Waste Water Treatment is sequentially connected in series connection by flow-type film mud coupling pond, sedimentation tank, aerobic nitrification biofilter, chemical dephosphorization pond
Composition, described sedimentation tank couples with flow-type film mud and is provided with sludge refluxing apparatus between pond, described aerobic nitrification biofilter
Couple with flow-type film mud and between pond, be provided with nitrification liquid reflux.
Described sludge refluxing apparatus includes sludge reflux pump and sludge return pipe, return sludge ratio be 10%～
200%.
Described nitrification liquid return-flow system includes nitrification liquid reflux pump and nitrification liquid reflux line, and mixed liquid recycle ratio is
10%～400%.
Described film mud coupling pond is film mud coupling anoxic pond or film mud coupling anaerobic pond.
Described flow-type film mud coupling pond peripheral effluent is provided with mesh isolating device；Described flow-type film mud coupling pond
Inside include agitating device, water distribution system, suspension biofilm carrier, biomembrane and suspension mud.
Described agitating device is underwater stirrer or plug flow device under water, and the quantity of described agitating device is at least 1
Group, described suspension biofilm carrier filling rate is 5%～70%.
Described chemical dephosphorization pond includes Dephosphorization reagent dosing system, agitating device, chemical dephosphorization pond body, discharge pipeline,
Chemical dephosphorization pond body is high-efficiency coagulative precipitation tank or magnetic-coagulation sedimentation tank.
The waste water treatment process step of this utility model flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment is such as
Under:
(1) after the nitrification liquid mixing that pending sewage refluxes with clear water reserviors, the water distribution system inflow film mud from bottom couples
Pond, biofilm carrier, the surface of suspension mud and growth inside in film mud coupling pond hydrolysis acidification microorganism and obligate
Denitrifying microorganism, the mixed liquid recycle ratio between film mud coupling pond and clear water reserviors is 10%～400%, and waste water couples pond at film mud
Middle reaction 1h～12h.
(2) mud-water separation reaction: the water outlet in flow-type film mud coupling pond enters sedimentation tank after mesh isolating device filters
In, by the physical sedimentation effect of sedimentation tank, make the suspension mud of residual in the coupling pond water outlet of flow-type film mud and suspend raw
The biomembrane come off on thing membrane carrier is settled and is realized mud-water separation, for the strain in supplementary mud film coupling pond, will settle
Mud by sludge reflux pump extraction to flow-type film mud coupling pond in, return sludge ratio is 10%～200%.Make sedimentation tank
Concentration of suspension in water outlet is less than 70mg/L.
(3) nitrification, de-carbon reaction: the water outlet after sedimentation tank processes enters aerobic nitrification biofilter, and dissolved oxygen is 2.5
～8.0mg/L, hydraulic detention time is 0.5h～12h.The apposition growth obligate aerobic nitrification bacterium on biologic packing material layer is by ammonia
Nitrogen is oxidized to nitrate nitrogen, and the apposition growth aerobic heterotrophic bacteria on biologic packing material layer is by a small amount of remaining organic matter removal, warp
Part water outlet after aerobic nitrification biofilter processes is entered as chemical dephosphorization pond as nitrification liquid backflow water, part water outlet
Water.
(4) dephosphorization reaction: the water outlet after aerobic nitrification biofilter retains, filters enters chemical dephosphorization pond, described
The dissolved oxygen of aerobic nitrification biofilter is 2.5～8.0mg/L, and hydraulic detention time is 0.5h～12h.Remove by adding chemistry
Phosphorus medicament, removes the total phosphorus in sewage, produces chemical sludge and is then periodically discharged by discharge pipeline, and the water outlet through mud-water separation reaches
Mark discharge.
It is raw that this utility model flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment can effectively solve conventional aeration
Thing filter tank pretreatment is complicated, backwash frequently with to problems such as former water utilization of carbon source are insufficient, improve Nitrogen/Phosphorus Removal, have concurrently
The features such as low cost, biological multiplication, final outflow water qualified discharge, there is great application value.
Accompanying drawing explanation
Fig. 1 is flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment structural representation.
1, inlet channel, 2, elevator pump, 3, flow-type film mud coupling pond, 4, suspension mud and suspended biological membrane carrier are mixed
Close district, 5, water distribution system, 6, suspension mud, 7, suspended biological membrane carrier, 8, agitating device, 9, mesh isolating device, 10, even
Adapter road, 11, sedimentation tank, 12, sludge return pipe, 13, sludge reflux pump, 14, effluent weir, 15, connect pipeline, 16, aerobic
Nitrification biofilter, 17, highly effective air bubbler, 18, water distribution system, 19, nitrification biologic packing material layer, 20, exhalant region, 21, go out
Water channel, 22, aerator, 23, steam line, 24, connect pipeline, 25, water distributing area, 26, chemical dephosphorization pond, 27, dephosphorization dosing
System, 28, agitator, 29, outlet canal, 30, drainage pipeline, 31, spoil disposal pipeline, 32, nitrification liquid reflux pump, 33, nitrification liquid returns
Flow tube road.
Detailed description of the invention
This utility model flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, described Waste Water Treatment is by flowing
Dynamic formula film mud coupling pond, sedimentation tank, aerobic nitrification biofilter, chemical dephosphorization pond are sequentially connected in series connection composition, described precipitation
Pond couples with flow-type film mud and is provided with sludge refluxing apparatus between pond, and described aerobic nitrification biofilter couples with flow-type film mud
Nitrification liquid reflux it is provided with between pond.
Described sludge refluxing apparatus includes sludge reflux pump and sludge return pipe, return sludge ratio be 10%～
200%.
Described nitrification liquid return-flow system includes nitrification liquid reflux pump and nitrification liquid reflux line, and mixed liquid recycle ratio is
10%～400%.
Described film mud coupling pond is film mud coupling anoxic pond or film mud coupling anaerobic pond.
Described flow-type film mud coupling pond peripheral effluent is provided with mesh isolating device；Described flow-type film mud coupling pond
Inside include agitating device, water distribution system, suspension biofilm carrier, biomembrane and suspension mud.
Described agitating device is underwater stirrer or plug flow device under water, and the quantity of described agitating device is at least 1
Group, described suspension biofilm carrier filling rate is 5%～70%.
Described chemical dephosphorization pond includes Dephosphorization reagent dosing system, agitating device, chemical dephosphorization pond body, discharge pipeline,
Chemical dephosphorization pond body is high-efficiency coagulative precipitation tank or magnetic-coagulation sedimentation tank.
The waste water treatment process step of this utility model flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment is such as
Under:
(1) after the nitrification liquid mixing that pending sewage refluxes with clear water reserviors, the water distribution system inflow film mud from bottom couples
Pond, biofilm carrier, the surface of suspension mud and growth inside in film mud coupling pond hydrolysis acidification microorganism and obligate
Denitrifying microorganism, the mixed liquid recycle ratio between film mud coupling pond and clear water reserviors is 10%～400%, and waste water couples pond at film mud
Middle reaction 1h～12h.
(2) mud-water separation reaction: the water outlet in flow-type film mud coupling pond enters sedimentation tank after mesh isolating device filters
In, by the physical sedimentation effect of sedimentation tank, make the suspension mud of residual in the coupling pond water outlet of flow-type film mud and suspend raw
The biomembrane come off on thing membrane carrier is settled and is realized mud-water separation, for the strain in supplementary mud film coupling pond, will settle
Mud by sludge reflux pump extraction to flow-type film mud coupling pond in, return sludge ratio is 10%～200%.Make sedimentation tank
Concentration of suspension in water outlet is less than 70mg/L.
(3) nitrification, de-carbon reaction: the water outlet after sedimentation tank processes enters aerobic nitrification biofilter, and dissolved oxygen is 2.5
～8.0mg/L, hydraulic detention time is 0.5h～12h.The apposition growth obligate aerobic nitrification bacterium on biologic packing material layer is by ammonia
Nitrogen is oxidized to nitrate nitrogen, and the apposition growth aerobic heterotrophic bacteria on biologic packing material layer is by a small amount of remaining organic matter removal, warp
Part water outlet after aerobic nitrification biofilter processes is entered as chemical dephosphorization pond as nitrification liquid backflow water, part water outlet
Water.
(4) dephosphorization reaction: the water outlet after aerobic nitrification biofilter retains, filters enters chemical dephosphorization pond, described
The dissolved oxygen of aerobic nitrification biofilter is 2.5～8.0mg/L, and hydraulic detention time is 0.5h～12h.Remove by adding chemistry
Phosphorus medicament, removes the total phosphorus in sewage, produces chemical sludge and is then periodically discharged by discharge pipeline, and the water outlet through mud-water separation reaches
Mark discharge.
It is raw that this utility model flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment can effectively solve conventional aeration
Thing filter tank pretreatment is complicated, backwash frequently with to problems such as former water utilization of carbon source are insufficient, improve Nitrogen/Phosphorus Removal, have concurrently
The features such as low cost, biological multiplication, final outflow water qualified discharge, there is great application value.
Claims (7)
1. a flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, it is characterised in that: described wastewater treatment equipment
It is sequentially connected in series connection is formed by flow-type film mud coupling pond, sedimentation tank, aerobic nitrification biofilter, chemical dephosphorization pond, described
Sedimentation tank couple with flow-type film mud and between pond, be provided with sludge refluxing apparatus, described aerobic nitrification biofilter and flow-type film
Mud coupling is provided with nitrification liquid reflux between pond.
Flow-type film mud the most according to claim 1 coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, it is characterised in that: institute
The sludge refluxing apparatus stated includes sludge reflux pump and sludge return pipe, and return sludge ratio is 10%～200%.
Flow-type film mud the most according to claim 1 coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, it is characterised in that: institute
The nitrification liquid reflux stated includes nitrification liquid reflux pump and nitrification liquid reflux line, and mixed liquid recycle ratio is 10%～400%.
Flow-type film mud the most according to claim 1 coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, it is characterised in that: institute
The film mud coupling pond stated is film mud coupling anoxic pond or film mud coupling anaerobic pond.
Flow-type film mud the most according to claim 4 coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, it is characterised in that: institute
The flow-type film mud coupling pond peripheral effluent stated is provided with mesh isolating device；Stirring is included in described flow-type film mud coupling pond
Device, water distribution system, suspension biofilm carrier, biomembrane and suspension mud.
Flow-type film mud the most according to claim 5 coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, it is characterised in that: institute
The agitating device stated is underwater stirrer or plug flow device under water, and the quantity of described agitating device is at least 1 group, and described is outstanding
Floating shape biofilm carrier filling rate is 5%～70%.
Flow-type film mud the most according to claim 1 coupling pond type denitrogenation dephosphorizing wastewater treatment equipment, it is characterised in that: change
Learning dephosphorization pond and include Dephosphorization reagent dosing system, agitating device, chemical dephosphorization pond body, discharge pipeline, chemical dephosphorization pond body is
High-efficiency coagulative precipitation tank or magnetic-coagulation sedimentation tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620340595.XU CN205710299U (en) | 2016-04-20 | 2016-04-20 | A kind of flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620340595.XU CN205710299U (en) | 2016-04-20 | 2016-04-20 | A kind of flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967435A (en) * | 2016-04-20 | 2016-09-28 | 安徽华骐环保科技股份有限公司 | Double-circulation nitrogen and phosphorus removal wastewater treatment system and process |
| CN106587491A (en) * | 2016-12-02 | 2017-04-26 | 北京交通大学 | Wastewater centralized treatment system and method for toilet wastewater collectors of high-speed railway passenger cars |
-
2016
- 2016-04-20 CN CN201620340595.XU patent/CN205710299U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967435A (en) * | 2016-04-20 | 2016-09-28 | 安徽华骐环保科技股份有限公司 | Double-circulation nitrogen and phosphorus removal wastewater treatment system and process |
| CN106587491A (en) * | 2016-12-02 | 2017-04-26 | 北京交通大学 | Wastewater centralized treatment system and method for toilet wastewater collectors of high-speed railway passenger cars |
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