CN104692595B - A kind of sewage-treatment plant, system and method - Google Patents
A kind of sewage-treatment plant, system and method Download PDFInfo
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- CN104692595B CN104692595B CN201510097706.9A CN201510097706A CN104692595B CN 104692595 B CN104692595 B CN 104692595B CN 201510097706 A CN201510097706 A CN 201510097706A CN 104692595 B CN104692595 B CN 104692595B
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- sewage
- treatment plant
- clean water
- reaction column
- activated sludge
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Abstract
The invention discloses a kind of sewage-treatment plant, system and method.Described device includes reaction column, aerator, feed feeder and water outlet device；The reaction column is vertically arranged, below provided with feed feeder, and bottom is provided with aerator, and its top is provided with water outlet device, according to water (flow) direction direction from top to bottom, successively including activated sludge clean water area, biomembrane clean water area and clear water zone in the reaction column；The permeable supporting layer every mud is provided between the activated sludge clean water area and biomembrane clean water area.The system includes multiple sewage-treatment plant series connection.It the described method comprises the following steps：(1) startup stage：Activated sludge is injected to the reaction column activated sludge area of each sewage-treatment plant in the sewage disposal system, vexed expose is carried out；(2) the continuous operation phase：Adjusted according to following principle：Run time is longer, and inflow is bigger, and aeration quantity is bigger.Load-bearing capacity of the present invention is strong, and backwashing period is long, and energy consumption and mud discharging are low.
Description
Technical field
The invention belongs to sewage treatment area, more particularly, to a kind of sewage-treatment plant, system and method.
Background technology
With the rapid expansion in city, the city that the sewage treatment plant of city suburbs is gradually got up by new development is initially positioned at
Surround.In addition, the implementation of New emission standard improves the emission request to pollutants such as nitrogen phosphorus, most of urban wastewater treatment firms
Upgrading need to be carried out.Due to the limitation of land used, and " energy-saving and emission-reduction " slogan proposition, the enlarging or transformation of sewage treatment plant
It must seek to take up an area small, efficiency high, energy-conservation excellent new technology and new technology.
Current sewage disposal mainly uses BAF and active sludge treatment.BAF is due to taking up an area face
Small, the efficient denitrogenation advantage of product, is favored in terms of the conventional treatment and advanced treating of sewage.However, its anti-load-bearing capacity
The shortcomings of poor, backwash is frequently complicated, aeration consumes energy high, constrains its extensive use.And Sewage Treatment for Activated Sludge, after processing
Water quality it is poor, the discharge excess sludge that can't be avoided causes environmental pollution.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of sewage-treatment plant, system and
Method, its object is to improve antipollution thing load-bearing capacity, extends backwashing period, reduces energy consumption, reach sludge emission reduction, even
Zero-emission, thus solves sludge treatment hardly possible, the technical problem that backwashing period is short and energy expenditure is big.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of sewage-treatment plant, including reaction
Post, aerator, feed feeder and water outlet device；The reaction column is vertically arranged, and feed feeder is provided with below, and bottom is provided with aeration
Device, its top is provided with water outlet device, net including activated sludge successively according to water (flow) direction direction from top to bottom in the reaction column
Pool, biomembrane clean water area and clear water zone；It is provided between the activated sludge clean water area and biomembrane clean water area permeable every mud
Supporting layer.
Preferably, the sewage-treatment plant, its supporting layer be porous web, for support biomembrane clean water area filler and every
Exhausted activated sludge clean water area filler.
Preferably, activated sludge clean water area accounts for the reaction column length 25% in the sewage-treatment plant, its reaction column
To 30%, the biomembrane clean water area accounts for the reaction column length 46% to 49%, and the reaction column remainder is clear water zone.
Preferably, the sewage-treatment plant, its activated sludge clean water area is in 250mm between 300mm.
Preferably, the sewage-treatment plant, the filtrate of its biomembrane clean water area filling is light ceramic filtrate, and particle diameter is
3~5mm.
Preferably, the sewage-treatment plant, its aerator includes multiple aeration heads, and the aeration head is in groined type cloth
If.
Preferably, the sewage-treatment plant, in addition to back flushing device, the water inlet pipe connection feedwater of the back flushing device
Device, the tracheae and air communication of the back purge system.
It is another aspect of this invention to provide that there is provided a kind of sewage disposal system, including multiple described sewage disposal dresses
Put, the multiple sewage-treatment plant series connection.
Preferably, the sewage disposal system, its multiple sewage-treatment plant include the sewage-treatment plant of aerobic operation
The sewage-treatment plant run with anoxic；The sewage-treatment plant of the aerobic operation, its aerator is aerated all the time；The anoxic
The sewage-treatment plant of operation, its aerator is only aerated in startup optimization.
It is another aspect of this invention to provide that there is provided a kind of sewage water treatment method, it is characterised in that comprise the following steps：
(1) startup stage：The reaction column that activated sludge injects each sewage-treatment plant in the sewage disposal system is lived
Property sludge area, carry out it is vexed expose；
(2) the continuous operation phase：Adjusted according to following principle：Run time is longer, and inflow is bigger, and aeration quantity is bigger.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
(1) sewage-treatment plant that the present invention is provided, combines activated sludge water purification and biomembrane water purification, and pass through
Supporting layer is set, it is anti-improving according to use environment according to special ratios formation activated sludge clean water area and biomembrane clean water area
Ensure purifying water effect while pollutant compound ability, extend backwashing period, reduce energy consumption, reach sludge emission reduction, even
Zero-emission.
(2) sewage-treatment plant that provides of the present invention, reasonable arrangement activated sludge clean water area and biomembrane clean water area it is suitable
Sequence, activated sludge clean water area serves the effect of water distribution simultaneously, eliminates injection well downhole flow regulator, further reduces energy consumption.
(3) sewage disposal system that the present invention is provided, multiple sewage-treatment plants is together in series, with reference to aerobic fortune
Row and anoxic operation, sewage treating efficiency are higher, and recycle water standard can be reached in a short time.
(4) sewage water treatment method that the present invention is provided, startup stage carries out vexed exposure, and operation 72 hours or so can reach flat
Weighing apparatus, the continuous operation phase, according to Effluent criteria, adjusts aeration quantity, it is ensured that purifying water effect.This method, backwashing period is long, energy consumption
Low, mud discharging is few.
Brief description of the drawings
Fig. 1 is the sewage-treatment plant structure chart of embodiment 1；
Fig. 2 is the sewage disposal system structure chart of embodiment 2.
In all of the figs, identical reference is used for representing identical element or structure, wherein：1 is reaction column, 2
It is feed feeder for aerator, 3,4 be water outlet device, and 5 be back flushing device, and X is activated sludge clean water area, and Y is biomembrane clean water area, Z
For clear water zone.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
It is embodiment below：
Embodiment 1
A kind of sewage-treatment plant, as shown in figure 1, including reaction column 1, aerator 2, feed feeder 3, water outlet device 4 and recoil
Wash device 5.
The reaction column 1 is vertically arranged, and feed feeder 3 is provided with below, and bottom is provided with aerator 2, and its top is set
There are water outlet device 4, the water inlet pipe connection feed feeder 3 of the back flushing device 5, the tracheae and air communication of the back purge system.
According to water (flow) direction direction from top to bottom in the reaction column 1, successively including activated sludge clean water area, biomembrane is net
Pool and clear water zone；The activated sludge clean water area accounts for the 25% to 30% of the length of reaction column 1, the biomembrane clean water area
The length 46% to 49% of reaction column 1 is accounted for, the remainder of reaction column 1 is clear water zone.The activated sludge clean water area and
The permeable supporting layer every mud is provided between biomembrane clean water area.The supporting layer is porous web, for support biomembrane water purification
Area's filler simultaneously completely cuts off activated sludge clean water area filler.Sludge-filled height is in 250mm to 300mm in the activated sludge clean water area
Between；In the biomembrane clean water area filtrate packed height in 460mm between 500mm；The filtrate is preferably light ceramic
Filtrate, particle diameter is 3~5mm.It is preferred that light ceramic filtrate property such as following table：
The aerator 2 includes multiple aeration heads, and the aeration head is laid in groined type.The aerator 2 is used to provide
The necessary oxygen in aerobic zone, and backwash are perturbed to current.It is by valve in mass air flow sensor and pipe-line system to exposing
The control of tolerance.
The feed feeder 3, for providing the water needed for reactor.Its intake pump can adjust flow of inlet water, so that real
Now to the control of flow velocity so that sludge does not go out sludge blanket by too high flow velocity, being total to for activated sludge area and biomembrane area is realized
Deposit.
The water outlet device 4, for the clear water after purge reactor processing.
The back flushing device 5, for providing the clear water and air of sufficient amount to rinse the filtrate in reactor.Backwash
Device 5 is made up of the gentle backwash part of water backwashing part.Wherein water backwashing part is anti-by water backwashing pump, flowmeter and water
Flushing pipe system is constituted, and it is by flowmeter and valve to backwashing the control of water.Gas backwash part is backwashed by gas
The gentle Backwash pipeline system composition of pump, mass air flow sensor, it is by valve in mass air flow sensor and pipe-line system to backwash
The control of aeration quantity.
Described sewage-treatment plant is cancelled BAF water distributing area, is changed on the basis of BAF
Sludge area, and it is mesh-structured to change supporting layer, mesh size is much smaller than filtrate size, makes it have the permeable effect every mud,
There is the effect of uniform water distribution simultaneously.Pass through the regulation to valve in flow of inlet water and pipe-line system so that activated sludge with
Biomembrane coexists.
Embodiment 2
A kind of sewage disposal system, as shown in Fig. 2 at including two sewage-treatment plants, i.e. one-level, B-grade sewage
Manage device, the multiple sewage-treatment plant series connection.The one-level sewage-treatment plant is the sewage-treatment plant of aerobic operation,
The B-grade sewage processing unit is the sewage-treatment plant that anoxic is run；The one-level sewage-treatment plant, its aerator 2 begins
Aeration realizes the mixing of the water inlet of reaction column 1 and the sludge of reaction column 1 and maintains aerobic environment eventually；The B-grade sewage processing dress
Put, its aerator 2 is only aerated in startup optimization.
The one-level sewage-treatment plant, its height of reaction column 1 is 1000mm, and activated sludge clean water area is highly 300mm,
Its biomembrane clean water area is highly 460mm, and clear water zone is highly 240mm；The B-grade sewage processing unit, its reaction column 1 is high
Spend for 950mm, activated sludge clean water area is highly 250mm, its biomembrane clean water area is highly 460mm, and clear water zone is highly
240mm.The one-level, the aeration head of B-grade sewage processing unit are laid in groined type.
X areas are under, and Y areas are upper, and sewage first passes through activated sludge clean water area, and activated sludge clean water area aeration head can drive dirt
Mud is circulated, and is uniformly distributed sewage, there is water distribution；Filtrate area aeration head can not drive filtrate to circulate, if first passing through filter
Expect area, then need increase to match somebody with somebody water layer, do not reach the purpose for removing SS.On the other hand, the anti-load-bearing capacity in sludge area is strong, and filtrate area resists
Load-bearing capacity is weaker, and sewage successively passes through sludge area and filtrate area, can obtain preferable treatment effect.
Embodiment 3
The sewage water treatment method of sewage disposal system, comprises the following steps in Application Example 2：
(1) startup stage：A diameter of 3~5mm ceramic grain filters are added to two reaction columns, Liang Ge filtrates area is covered with respectively,
It is then injected into the activated sludge fetched by sludge concentration tank, it is desirable to which mud height does not have filtering bed of material maximum height, finally starts empty
Two reaction columns are aerated by air pump respectively.Aeration added a certain amount of methanol into two reaction columns every 24 hours, continued
Aeration.
(2) the continuous operation phase：After when aeration 72 is small, two reaction columns are connected, start intake pump, are intake anti-by one-level
Column bottom is answered to intake, the water outlet of first order reaction post is the water inlet of second order reaction post, and second order reaction post is also bottom water inlet, two
The water outlet of order reaction post is final outflow water.The air pump of second order reaction post is closed while starting intake pump, first order reaction post is reduced
Aeration quantity, so as to be allowed to continuous operation, run time is longer, and inflow is bigger, and aeration quantity is bigger so that water outlet ammonia nitrogen is stable
Less than 1mg/L.Fully meet the standard of Treated sewage reusing water.
Sewage-treatment plant in the present invention, combines the anti-load-bearing capacity of activated sludge, and the long period just needs to carry out
Backwash operation, aeration power consumption is relatively low.Method in embodiment 3, as soon as within week, sewage is reached recycle water standard, phase
For existing activated sludge process and BAF, the sewage disposal time greatly shortens.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (9)
1. a kind of sewage-treatment plant, it is characterised in that including reaction column (1), aerator (2), feed feeder (3) and water outlet device
(4)；The reaction column (1) is vertically arranged, and feed feeder (3) is provided with below, and bottom is provided with aerator (2), and its top is set
It is equipped with water outlet device (4), according to water (flow) direction direction from top to bottom in the reaction column (1), successively including activated sludge clean water area,
Biomembrane clean water area and clear water zone；The permeable support every mud is provided between the activated sludge clean water area and biomembrane clean water area
Layer, the supporting layer is porous web, for support biomembrane clean water area filler and completely cuts off activated sludge clean water area filler.
2. sewage-treatment plant as claimed in claim 1, it is characterised in that activated sludge clean water area in the reaction column (1)
The reaction column (1) length 25% to 30% is accounted for, the biomembrane clean water area accounts for the reaction column (1) length 46% to 49%,
Reaction column (1) remainder is clear water zone.
3. sewage-treatment plant as claimed in claim 2, it is characterised in that the activated sludge clean water area in 250mm extremely
Between 300mm.
4. sewage-treatment plant as claimed in claim 2, it is characterised in that the filtrate of the biomembrane clean water area filling is light
Matter ceramic grain filter, particle diameter is 3~5mm.
5. sewage-treatment plant as claimed in claim 1, it is characterised in that the aerator (2) includes multiple aeration heads, institute
Aeration head is stated to lay in groined type.
6. the sewage-treatment plant as described in claim 1 to 5 any one, it is characterised in that also including back flushing device (5),
The water inlet pipe connection feed feeder (3) of the back flushing device (5), the tracheae and air communication of the back flushing device (5).
7. a kind of sewage disposal system, it is characterised in that at multiple sewage as described in claim 1 to 5 any one
Manage device, the multiple sewage-treatment plant series connection.
8. sewage disposal system as claimed in claim 7, it is characterised in that the multiple sewage-treatment plant includes aerobic fortune
Capable sewage-treatment plant and the sewage-treatment plant of anoxic operation；The sewage-treatment plant of the aerobic operation, its aerator
(2) it is aerated all the time；The sewage-treatment plant of the anoxic operation, its aerator (2) is only aerated in startup optimization.
9. a kind of sewage water treatment method of application sewage disposal system as claimed in claim 8, it is characterised in that including following step
Suddenly：
(1) startup stage：Activated sludge is injected to reaction column (1) activity of each sewage-treatment plant in the sewage disposal system
Sludge area, carries out vexed expose；
(2) the continuous operation phase：Adjusted according to following principle：Run time is longer, and inflow is bigger, and aeration quantity is bigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510097706.9A CN104692595B (en) | 2015-03-05 | 2015-03-05 | A kind of sewage-treatment plant, system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510097706.9A CN104692595B (en) | 2015-03-05 | 2015-03-05 | A kind of sewage-treatment plant, system and method |
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| CN104692595B true CN104692595B (en) | 2017-08-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105110462B (en) * | 2015-09-14 | 2018-02-23 | 北京工业大学 | A kind of quick device and method for realizing high ammonia-nitrogen wastewater BAF short distance nitration |
| CN110713252A (en) * | 2018-07-13 | 2020-01-21 | 南通星辰合成材料有限公司 | Efficient biological aerobic reaction device and sewage treatment method thereof |
| CN109851049A (en) * | 2019-04-11 | 2019-06-07 | 信开水环境投资有限公司 | Sewage treatment unit and its application method and purposes |
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| KR20010079050A (en) * | 2001-06-08 | 2001-08-22 | 김학로 | SBR omitted |
| CN100336743C (en) * | 2005-04-14 | 2007-09-12 | 上海交通大学 | Jet-flow aeration biological filtering tank |
| CN102765856B (en) * | 2012-07-18 | 2013-12-11 | 中国矿业大学 | Short-range nitrification-denitrification dephosphorization and denitrogenation method for reinforced low-carbon/phosphorus-ratio sewage |
| CN203999114U (en) * | 2014-07-14 | 2014-12-10 | 华侨大学 | A kind of active sludge-bacteria bed-landscape ecological Sewage treatment systems |
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