CN209065690U - Sewage treatment plant's dilatation proposes mark processing system - Google Patents

Abstract

The utility model discloses a kind of sewage treatment plant's dilatations to propose mark processing system, and the system comprises the pretreatment unit being sequentially connected, modified SBR pond, advanced treatment unit and disinfection canals；The modified SBR pond is made of anoxic pond, anaerobic pond, aerobic tank and the pond SBR being sequentially connected, the sludge reflux outlet in the pond the SBR is connected with the sludge import of anaerobic pond, the mixed liquor bypass outlet in the pond SBR is connected with the phegma import of anoxic pond, and the water outlet in the pond SBR is connected with the water inlet of advanced treatment unit.This system is equivalent to a complete mix flow during intaking, and has the function of powerful dilution, thus has stronger anti impulsion load and poisoning resistant ability, belong to quiescent setting during precipitating, deposition condition is good, and higher sludge concentration can be accumulated in reactor, so as to not set secondary settling tank.

Description

Sewage treatment plant's dilatation proposes mark processing system

Technical field

The utility model relates to technical field of sewage more particularly to a kind of sewage treatment plant's dilatation to propose mark processing system System.

Background technique

In recent years, as China's expanding economy, population increase, China's water pollution problems is increasingly sharpened, and how to be controlled Water pollution preferably becomes our municipal sewage plants urgent problem to be solved as sewage treatment using water resource Critical facility is concerned by people, however facility of the sewage treatment plant of China's early stage construction due to lacking denitrogenation dephosphorizing, is led Cause effluent quality nitrogen phosphorus exceeded, a large amount of presence of nitrogen P elements seriously destroy water body, and water eutrophication is on the rise, and leads It causes environmental pressure to further increase, therefore, the sewage treatment plant of early stage construction is carried out to propose mark transformation, is improved to sewerage nitrogen and phosphor Removal rate is of great significance to the improvement of China's water environmental problems.Due to the water of each municipal sewage plant's processing in China The actual conditions such as amount, influent quality, Effluent criteria are different, and treatment process is multifarious, how to select suitably to mention mark and change Making path is that municipal sewage plant proposes the matter of utmost importance for needing to solve in mark transformation process.

Utility model content

The purpose of the utility model is to provide a kind of sewage treatment plant's dilatations to propose mark processing system.It is intended to overall city planning Under guidance, Engineering of Sewage Treatment Plant is transformed, achievees the purpose that improve Urban Water Environment；Engineering construction is set using original in the recent period as far as possible It applies, coordinates engineering construction and the development in city mutually, not only protect environment, but also farthest play project benefit；Higher While removing the organic pollutant in sewage, according to China's river eutrophication degree, the preferably substances such as removal N, P；It is dirty Water processing establishment ensures that stable, maintenance is simple and convenient, and selects energy conservation, low noise facility as far as possible；Using modernization automatic control skill Art realizes automatic management, reaches technically reliable, raise the management level, and reduces labor intensity and operating cost.

The purpose of this utility model is achieved through the following technical solutions:

The utility model relates to a kind of sewage treatment plant's dilatations to propose mark processing system, pre- the system comprises what is be sequentially connected Processing unit, modified SBR unit, advanced treatment unit and disinfection canal；The modified SBR unit is by the anoxic that is sequentially connected The sludge reflux outlet of pond, anaerobic pond, aerobic tank and the pond SBR composition, the pond SBR is connected with the sludge import of anaerobic pond, institute The mixed liquor bypass outlet for stating the pond SBR is connected with the phegma import of anoxic pond, is equipped in the pond SBR and advanced treatment unit The connected outlet pipe of water inlet.

Preferably, the pond SBR includes the first pond SBR and the 2nd pond SBR；First pond SBR and the 2nd pond SBR are divided equally It She You not sludge reflux outlet, mixed liquor bypass outlet and outlet pipe.

Preferably, when the outlet pipe in the 2nd pond SBR is closed, the sludge reflux outlet in the 2nd pond SBR, mixed liquor flow back out Mouth is opened, and the outlet of the sludge reflux in the first pond SBR, mixed liquor bypass outlet are closed, and outlet pipe is opened.

Preferably, when the outlet pipe in the first pond SBR is closed, the sludge reflux outlet in the first pond SBR, mixed liquor flow back out Mouth is opened, and the outlet of the sludge reflux in the 2nd pond SBR, mixed liquor bypass outlet are closed, and outlet pipe is opened.

Preferably, the first pond SBR, the 2nd pond SBR outlet pipe be all made of Air Weir water outlet.

Preferably, the pretreatment unit includes the coarse rack well and primary sedimentation tank being sequentially connected；The water outlet of the primary sedimentation tank Mouth is connected with the water inlet of the anoxic pond.

Preferably, the primary sedimentation tank stirs clarifying basin using square mechanical.

Preferably, the advanced treatment unit includes the square mechanical stirring clarifying basin being sequentially connected and fibre turntable filtering Pond；The outlet pipe in the pond SBR is connected with the water inlet of the rectangular accelerator.

Compared with prior art, the utility model has the technical effect that

1, it is interruption water inlet for the single pond SBR, but for the pond bed rearrangement SBR, realizes continuum micromeehanics, water outlet, make Obtain entire Process for Effluent continuous uniform, convenient operation and management；Pool inner water position substantially constant, aerobic zone are in often aeration state, increase Add pond capacity utilization, improves the utilization rate of equipment；

2, it is equivalent to a complete mix flow during system water inlet, has the function of powerful dilution, thus had Stronger anti impulsion load and poisoning resistant ability belong to quiescent setting during precipitating, and deposition condition is good, can accumulate in reactor Higher sludge concentration, so as to not set secondary settling tank；

3, modified SBR (A²/ O-SBR) it is similar to A²Main body biochemistry pool and sedimentation basin in O technique are built jointly, relative to A²O technique, occupied area relative decrease.

4, it is discharged due to the pond SBR using Air Weir, so that the pond SBR is expired Chi Yunhang always, realize continuum micromeehanics, continuously gone out Water overcomes the low disadvantage of the pond SBR capacity utilization.Integrated processing structures, so that reflux is in two adjacent ponds It is carried out between son, the same water pump can be used in sludge reflux and mixed liquor reflux, and the reflux of low lift, low energy consumption can be used Pump, saves investment energy consumption.

5, effluent quality is good and stablizes, and reaches country-level A standard.It is 333L/m.s, backwash frequency that back suction, which washes intensity, Height, every two hour backwash is primary, prevents the growth of green alga, blocks filter cloth not, is not hardened.

6, the operating cost of fibre turntable filter chamber is very low, and the operating cost for handling one ton of water only has 0.004 yuan (4 lis), And traditional handicraft (V-type filter tank, D type filter tank, fibre bundle/ball filter tank) operating cost is 0.2-0.3 member, by taking 10,000 tons of water as an example, 500,000-70 ten thousand yuan can be saved within 1 year.

7, fibre turntable filter chamber eliminates air blast computer room compared with traditional handicraft, lift pump room, chlorination house, clear water reserviors, sinks The civil engineerings such as shallow lake pond, occupied area is very small, and the occupied area of 10,000 tons of water only has 15m, is the 1/6-1/7 of traditional handicraft.

8, fibre turntable filter chamber eliminates many structures, valve, pipeline etc., so that the maintenance of equipment, side easy to maintenance Just, operation the degree of automation is quite high, and there is no need to special messengers to keep an eye on, and the labor intensity of worker lowers significantly.

9, fibre turntable filter chamber eliminates preceding chlorination compared with previous traditional filter tank, not only reduces operating cost in this way, but also Avoid the hidden danger of worker operation.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:

Fig. 1 is the schematic diagram of Tthe utility model system；

Fig. 2 is the plane arrangement structure schematic diagram in modified SBR pond in Tthe utility model system；

Fig. 3 is the workflow schematic diagram in modified SBR pond in Tthe utility model system；

Wherein, 1 is anoxic pond, and 2 be anaerobic pond, and 3 be the first aerobic tank, and 4 be the second aerobic tank, and 5 be third aerobic tank, 6 It is the 2nd pond SBR for the first pond SBR, 7,8 be sludge baffle, and 9 export for sludge reflux, and 10 be mixed liquor bypass outlet, and 11 are Outlet pipe, 12 be mud discharging mouth, and 13 be water inlet pipe.

Specific embodiment

The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field Technical staff further understands the utility model, but the invention is not limited in any way.It should be pointed out that this field For those of ordinary skill, without departing from the concept of the premise utility, various modifications and improvements can be made.These Belong to the protection scope of the utility model.

Embodiment

Sewage treatment plant as shown in Figure 1 dilatation proposes mark processing system, mainly includes coarse rack well, inlet pumping station, primary sedimentation tank (square mechanical stirs clarifying basin 1), modified SBR pond, square mechanical stirring clarifying basin 2, fibre turntable, disinfection canal.It is described thick Grille well, inlet pumping station, primary sedimentation tank constitute coagulation unit；Modified SBR pond, that is, two stage treatment the unit is described rectangular Accelerator 2, fibre turntable constitute advanced treatment unit, and the disinfection canal constitutes disinfection unit.When processing, waste water according to It is secondary to be stirred by coarse rack well, inlet pumping station, primary sedimentation tank (square mechanical stirs clarifying basin 1), modified SBR pond, square mechanical Clarifying basin 2, fibre turntable, disinfection canal.

Below to the main composition of this system (coagulation unit+two stage treatment unit+advanced treatment unit+disinfection list Member) it is illustrated:

1, coagulation unit

Coagulation unit, also referred to as pretreatment unit use:

Coarse rack+primary sedimentation tank (square mechanical stirs clarifying basin 1)

Coarse rack: coarse floating material in removal sewage.

Primary sedimentation tank (square mechanical stirs clarifying basin 1): suspended matter and sand in removal sewage.

2, two stage treatment unit

Two stage treatment unit uses: modified SBR pond, i.e. A²/ O-SBR unit

SBR (Sequencing Batch Reactor) is also known as sequencing batch active sludge, is collection aeration, precipitating, reflux Yu Yichi is provided a kind of using time sequencing as the sewage treatment technology of work centre.

Many mutation, modified SBR (A has had been developed in typical SBR technique²/ O-SBR) it is improved continuous flow sequencing batch Reactor, it is that successful sewage treatment process is improved on the basis of traditional SBR technology, and this method is the micro- life of various advantages The growth and breeding of object creates good environmental condition and hydraulics so that the degradation of organic matter, the removal of phosphorus, ammonia nitrogen nitre The biochemical processes such as change, denitrification keep highly effective reaction state, effectively improve biochemical removal rate.The method uses the conjuncted knot of combined type Structure, occupied area is small, and operating cost is low, and surplus sludge volume is few.

The operation logic of modified SBR is substantially A²/ O system is followed by SBR, therefore has A²The biological carbon and phosphorous removal of/O method The integrated nature of function and SBR.It enhances the function of each reaction zone, for each dominant bacteria create more superior environment and Hydraulics.

Specific to the present embodiment, the plane arrangement structure schematic diagram in modified SBR pond is as shown in Fig. 2, the modified SBR Pond includes the anoxic pond 1 being sequentially connected, anaerobic pond 2, the first aerobic tank 3, the first aerobic tank 3 respectively with the second aerobic tank 4, third Aerobic tank 5 is connected, and the second aerobic tank 4 is connected with the first pond SBR 6, and third aerobic tank 5 is connected with the 2nd pond SBR 7；Described first Sludge baffle 8 is equipped in the pond SBR 6, the 2nd pond SBR 7, the sludge of sludge baffle side in the first pond SBR 6, the 2nd pond SBR 7 The sludge reflux outlet 9 that the sludge import with anaerobic pond 2 is connected is equipped in area, in the first pond SBR 6, the 2nd pond SBR 7 The fluid zone of the sludge baffle other side is equipped with the mixed liquor bypass outlet 10 that the phegma import with anoxic pond 1 is connected, described Anoxic pond 1 is additionally provided with water inlet pipe 13, and the fluid zone of the sludge baffle other side is also set in the first pond SBR 6, the 2nd pond SBR 7 There is outlet pipe 11 to be connected with the water inlet of advanced treatment unit, sludge baffle is another in the first pond SBR 6, the 2nd pond SBR 7 The fluid zone bottom of side further respectively has mud discharging mouth 12.

The work flow diagram in the modified SBR pond of the present embodiment is as shown in Figure 3；Water inlet enters with the phegma in the pond SBR Anoxic pond carries out anoxic denitrification denitrogenation, and the mixed liquor after denitrogenation enters anaerobic pond and carries out anaerobic phosphorus release, mixed after anaerobic phosphorus release It closes liquid and enters aerobic tank, remove removal organic polluter and polyP bacteria is made sufficiently to assemble phosphorus in aerobic state, after aerobic tank is handled Mixed liquor, enter back into the first pond SBR or the 2nd pond SBR.If the first pond SBR is discharged as sedimentation basin, the 2nd pond SBR is dirty Mud flows back into anaerobic pond by sludge pump, and the mixed liquor in the 2nd pond SBR flows back into anoxic pond by mixed liquor reflux pump, otherwise also So, the balance of the removal of phosphorus of the reflux of sludge and mixed liquor for strengthening whole system, denitrification efficiency and sludge concentration, can Change the regurgitant volume of system by gearshift adjustment reflux pump.Excess sludge is discharged from the pond SBR.

A²In the pond /O-SBR, to avoid the influence that nitrate discharges anaerobic zone phosphorus in phegma, by anoxic zone it is preposition in Anaerobic zone, nitrifies phegma and water inlet initially enters anoxic zone, due to having sufficient carbon source and suitable Denitrification Conditions, anti-nitre Change effect can be effectively ensured in anoxic pond, and nitrate nitrogen is made sufficiently to obtain denitrification in anoxic pond, remove nitrate nitrogen, then Into anaerobic zone, the anaerobic state of anaerobic zone ensure that, make all sludge and sufficiently experienced the process of anaerobic phosphorus release, so that poly- Phosphorus bacterium can phosphorus be dissolved in intake from mixed liquor to the maximum extent in aerobic stage, and has been stored up in vivo in the form of poly- phosphorus Come, with the exclusion of excess sludge, achieve the effect that the dephosphorization from sewage, the dissolution phosphorus concentration in water outlet is made to reach minimum.Strengthen Phosphor-removing effect.

3, advanced treatment unit

Advanced treatment unit mainly uses: fibre turntable filtering

Fibre turntable filter chamber is a kind of filter occurred in recent years, be mainly used for waste water advanced treating and middle water Reuse.The core apparatus of equipment is exactly intermediate filtering turntable, and, by 1-12 disc, each disc is divided into 6 fritters, upper bread for it Filter cloth is wrapped up in, plug-in structure is belonged to, transport maintenance is particularly convenient.The driving motor in upper right side drives turntable rotation；In filter disc Between be hollow center Water collecting tube；Back purge system includes that back suction inhales sucker, back suction pulsating pump；Mud discharging device includes sludge pump (and back suction pulsating pump), bucket type mud-collecting slot, porous sludge pipe of arranging above bucket type mud-collecting slot；It further include robot control system(RCS) (PLC Autocontrol panel).

4, disinfection unit

Disinfection unit carries out disinfection by ultraviolet light using disinfection canal.

Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, This has no effect on the substantive content of the utility model.

Claims (9)

1. a kind of sewage treatment plant's dilatation proposes mark processing system, which is characterized in that the system comprises the pretreatments being sequentially connected Unit, modified SBR unit, advanced treatment unit and disinfection canal；The modified SBR unit by be sequentially connected anoxic pond, The sludge reflux outlet of anaerobic pond, aerobic tank and the pond SBR composition, the pond SBR is connected with the sludge import of anaerobic pond, described The mixed liquor bypass outlet in the pond SBR is connected with the phegma import of anoxic pond, is equipped with and advanced treatment unit in the pond SBR The connected outlet pipe of water inlet.

2. sewage treatment plant's dilatation as described in claim 1 proposes mark processing system, which is characterized in that the pond SBR includes the One pond SBR and the 2nd pond SBR；First pond SBR and the 2nd pond SBR are respectively equipped with sludge reflux outlet, mixed liquor reflux Outlet and outlet pipe.

3. sewage treatment plant's dilatation as claimed in claim 2 proposes mark processing system, which is characterized in that when going out for the 2nd pond SBR When water pipe is closed, the sludge reflux outlet in the 2nd pond SBR, mixed liquor bypass outlet are opened, and the sludge reflux in the first pond SBR goes out Mouth, mixed liquor bypass outlet are closed, and outlet pipe is opened.

4. sewage treatment plant's dilatation as claimed in claim 2 proposes mark processing system, which is characterized in that when going out for the first pond SBR When water pipe is closed, the sludge reflux outlet in the first pond SBR, mixed liquor bypass outlet are opened, and the sludge reflux in the 2nd pond SBR goes out Mouth, mixed liquor bypass outlet are closed, and outlet pipe is opened.

5. sewage treatment plant's dilatation as claimed in claim 2 proposes mark processing system, which is characterized in that the first pond SBR, The outlet pipe in two ponds SBR is all made of Air Weir water outlet.

6. sewage treatment plant's dilatation as claimed in claim 2 proposes mark processing system, which is characterized in that the first pond SBR, Mud discharging mouth is equipped in two ponds SBR.

7. sewage treatment plant's dilatation as described in claim 1 proposes mark processing system, which is characterized in that the pretreatment unit packet Include the coarse rack well and primary sedimentation tank being sequentially connected；The water outlet of the primary sedimentation tank is connected with the water inlet of the anoxic pond.

8. sewage treatment plant's dilatation as claimed in claim 7 proposes mark processing system, which is characterized in that the primary sedimentation tank use side Shape accelerator.

9. sewage treatment plant's dilatation as described in claim 1 proposes mark processing system, which is characterized in that the advanced treatment unit Including the square mechanical stirring clarifying basin being sequentially connected and fibre turntable filtering ponds；The outlet pipe in the pond SBR and the rectangular machine The water inlet that tool stirs clarifying basin is connected.