CN209619106U - Domestic sewage processing system - Google Patents

Abstract

The utility model provides a kind of domestic sewage processing system, which includes the water inflow disposal plant being sequentially communicated, anaerobic pond, anoxic pond, the pond MBBR and water treatment facilities out；Novel aerobic tank is generated by the suspended biological filler filling in the pond MBBR, makes the advantages that entire domestic sewage processing system debugging cycle is short, load-bearing capacity is strong, low energy consumption, small investment, operational management simplicity, stable effluent quality.The integration dirt domestic sewage processing system have energy conservation, operation it is easy to maintenance, be widely portable to the demanding country sewage of effluent quality, river regulation, industrial and mining enterprises, resident living, hotels, tourist attraction, public place.

Description

Domestic sewage processing system

Technical field

The utility model relates to a kind of domestic sewage processing systems.

Background technique

Existing sewage treatment generally passes through AAO technique, and AAO technique is the abbreviation of anaerobic- anoxic- oxic group technology, is It is made of three sections of biological treatment devices.It and single-stage AO technique are the difference is that an anaerobic reactor, purport is arranged in leading portion It is removed enabling the part hardly degraded organic substance in waste water degrade by anaerobic processes, and then the biodegradability of improvement waste water, And the carbon source for being suitable for denitrification process is provided for subsequent anoxic section, it is finally reached the purpose of efficiently removal COD, BOD, N, P.

The process flow of AAO system is: waste water enters anaerobic reactor after pretreatment, obtains high COD substance in the section Denitrification process is carried out subsequently into anoxic section to decomposed, is then to carry out oxidative degradation organic matter and nitrify anti- The aerobic section answered.To ensure that denitrifying efficiency, aerobic section water outlet a part enter anoxic phases, and and anaerobism by reflux The water outlet mixing of section, to make full use of the carbon source in waste water.Another part water outlet enters secondary settling tank, makees after isolating active sludge For water outlet, sludge is passed straight back to anaerobism section.

The difficult raising of entire technique phosphor-removing effect, sludge growth have certain limit, are not easy to improve, and especially P/BOD value is high When it is even more so；Denitrification effect is also difficult to be further increased, and interior internal circulating load is generally limited with 2Q, should not be too high；Into sedimentation basin Processing water to keep certain density dissolved oxygen, reduce the residence time, prevent showing for anaerobic state and sludge release phosphorus As occurring, but dissolved oxygen concentration is also unsuitable excessively high, the interference to prevent circulation mixed liquor to anoxic reacter.

AAO system long processing period at present, takes up a large area, and the high problem of energy consumption leads to existing sewage disposal system very Difficulty large-scale promotion in terms of sanitary sewage disposal uses.

Utility model content

The purpose of the utility model is to provide a kind of domestic sewage processing systems, to solve current AAO sewage disposal system Long processing period takes up a large area, the high problem of energy consumption.

In order to solve the above technical problems, the one aspect as the utility model, provides a kind of sanitary sewage disposal system System, comprising:

Water inflow disposal plant, for carrying out primary treatment to sanitary sewage；

Anaerobic pond is connect with the water inflow disposal plant, handles sewage under anaerobic environment；

Anoxic pond is connect with the anaerobic pond, handles sewage under anaerobic environment；

The pond MBBR is connect with the anoxic pond, for carrying out moving bed biological membranization reaction purification to sewage；

What is connect with the pond MBBR goes out water treatment facilities, for treated, water to do subsequent filter sterilizing and purifying.

Further, the water inflow disposal plant includes:

Grid pond is connect with sanitary sewage outlet pipe, for removing floating material and suspended matter in sanitary sewage.

Conditioning tank, the water inlet of the conditioning tank are connect with the grid pond, and the water outlet of the conditioning tank is detested with described Oxygen pond connection, for the PH conciliation and water quality conciliation in sanitary sewage.

Further, the water treatment facilities out includes:

Inclined-tube sedimentation tank, water inlet are connect with the water outlet in the pond MBBR, for treated, sewage to carry out group Box-like precipitating；

Effluent water filtering device is connect with the inclined-tube sedimentation tank, for being filtered to combined type oettIed sewage；

Ultraviolet ray sterilizer is connect with the effluent water filtering device, for carrying out disinfection by ultraviolet light to the sewage of filtering.

Further, air blower is set on the pond MBBR.

Further, nitrification liquid return pipe is connected on the outlet pipe in the pond MBBR；

The nitrification liquid return pipe is connect with the anoxic pond.

Further, the inclined-tube sedimentation tank connects sludge collecting pipe, and the sludge collecting pipe connects sludge-tank；

The inclined-tube sedimentation tank connects mud return line, the water inlet of the mud return line connection anaerobic pond.

Compared with prior art, the beneficial aspects of the utility model are:

Utility model provides a kind of domestic sewage processing system, including be sequentially communicated water inflow disposal plant, anaerobic pond, lack Oxygen pond, the pond MBBR and water treatment facilities out；Novel aerobic tank is generated by the suspended biological filler filling in the pond MBBR, is made whole A domestic sewage processing system debugging cycle is short, load-bearing capacity is strong, low energy consumption, small investment, operational management is easy, effluent quality is steady The advantages that determining.The integration dirt domestic sewage processing system have energy conservation, operation it is easy to maintenance, be widely portable to effluent quality Demanding country sewage, river regulation, industrial and mining enterprises, resident living, hotels, tourist attraction, public place.

Detailed description of the invention

Fig. 1 diagrammatically illustrates a kind of structural schematic block diagram of domestic sewage processing system in the utility model embodiment；

Fig. 2 diagrammatically illustrates a kind of flow chart of domestic sewage processing method in the utility model embodiment.

Specific embodiment

The embodiments of the present invention are described in detail below, but the utility model can be defined by the claims Implement with the multitude of different ways of covering.

As shown in Figure 1, the utility model embodiment provides a kind of domestic sewage processing system (AMG), comprising: at water inlet It manages device, anaerobic pond, anoxic pond, the pond MBBR and water treatment facilities, water inflow disposal plant is used to carry out sanitary sewage primary out Processing；Anaerobic pond is connect with the water inflow disposal plant, and sewage anoxic pond is handled under anaerobic environment and is connect with the anaerobic pond, Sewage is handled under anaerobic environment；The pond MBBR is connect with the anoxic pond, for carrying out moving bed biological membranization reaction to sewage Purification；The pond MBBR connects out water treatment facilities, for treated, water to do subsequent filter sterilizing and purifying.

The utility model key is to use the pond MBBR as aerobic tank, and water inflow disposal plant and out water treatment facilities can roots According to needing to select, novel aerobic tank is generated by the filling of MBBR suspended biological filler, debugs entire domestic sewage processing system The advantages that period is short, load-bearing capacity is strong, low energy consumption, small investment, operational management simplicity, stable effluent quality.The integration is dirty raw It is easy to maintenance that sewage disposal system living has energy conservation, an operation, is widely portable to the demanding country sewage of effluent quality, river Improvement, industrial and mining enterprises, resident living, hotels, tourist attraction, public place.

MBBR is moving bed biofilm reactor, and MBBR technological principle is a certain number of outstanding by adding into reactor Float carrier improves biomass and biological species in reactor, to improve the treatment effeciency of reactor.Since packing density connects It is bordering on water, so, with water in the state that is thoroughly mixed, the environment of microorganism growth is gas, liquid, solid three-phase when aeration.It carries The collision and shear action of body in water, keep air bubble more tiny, increase the utilization rate of oxygen.In addition, each carrier It is inside and outside to all have different biological species, some anaerobic bacterias of growth inside or facultative aerobe, external preferably bacteria, carrier each in this way All it is a microreactor, exists simultaneously nitration reaction and anti-nitration reaction, to improve treatment effect.

MBBR has both the advantages of both conventional fluidization bed and biological contact oxidation process, is a kind of new and effective sewage treatment Method makes carrier be in fluidized state, and then forms suspension growth by the castering action of aeration and water flow in aeration tank The biomembrane of activated sludge and apposition growth, this allows for moving-bed biofilm and has used entire space reactor, gives full play to The superiority of attachment phase and suspended phase biology the two, is allowed to maximize favourable factors and minimize unfavourable ones, be complementary to one another.Unlike previous filler, hang Floating filler thus can be referred to as " mobile biomembrane " with the frequent multiple-contact of sewage.

Major advantage by using the domestic sewage processing system in the pond MBBR includes: that processing load is high；Entire oxidation Pool volume is small, reduces capital expenditure, and sludge reflux equipment can not be needed in MBBR technique, is not required to backwashing equipment, reduces Equipment investment, it is easy to operate, reduce the operating cost of sewage；Entire MBBR process sludge low yield, reduces at sludge Expense is set, filler support is not needed in MBBR, is added directly, set-up time and expense are saved.

As shown in Figure 1, it is preferred that the water inflow disposal plant includes: grid pond and conditioning tank；Grid pond and sanitary sewage Outlet pipe connection, for removing floating material and suspended matter in sanitary sewage.The water inlet of conditioning tank is connect with the grid pond, The water outlet of the conditioning tank is connect with the anaerobic pond, for the PH conciliation and water quality conciliation in sanitary sewage.

By carrying out primary filter processing to sanitary sewage in grid pond, the floating material, tiny in water removal can be removed Particle and suspended matter realize the primary filter to sewage, then carry out PH conciliation to sanitary sewage and stabilizing water quality is reconciled, realize The primary filter of sewage is reconciled.

As shown in Figure 1, it is preferred that the water treatment facilities out includes: inclined-tube sedimentation tank, effluent water filtering device and ultraviolet light Disinfecting instrument；Wherein, inclined-tube sedimentation tank water inlet is connect with the water outlet in the pond MBBR, for treated, sewage to be carried out Combined type precipitating；Effluent water filtering device is connect with the inclined-tube sedimentation tank, for being filtered to combined type oettIed sewage； Ultraviolet ray sterilizer is connect with the effluent water filtering device, for carrying out disinfection by ultraviolet light to the sewage of filtering.

By the complete pollutant of water base present treatment of MBBR technique after-purification, after needing further to precipitate filtering and disinfection, both Can export reach level-one emission standard A in " urban wastewater treatment firm pollutant emission standard " GB/T18918-2002 and " urban sewage reutilization urban reclaimed water water quality " GB/T18920-2002 reuse standard.So passing through after MBBR technique Inclined-tube sedimentation tank is combined formula precipitating, and is finally filtered by effluent water filtering device, and ultraviolet ray sterilizer is then passed through Terminal disinfection is carried out, output meets defined water.

As shown, air blower is arranged on the pond MBBR.By the way that air blower is arranged, it can make to constitute in the pond MBBR and compare Good aerobic tank；When being aerated by air blower, suspending carrier and water in the pond MBBR are in be thoroughly mixed state, micro- life The environment of object growth is gas, liquid, solid three-phase.The collision and shear action of carrier in water, keep air bubble more tiny, increase The utilization rate of oxygen.In addition, different biological species are all had inside and outside each carrier, some anaerobic bacterias of growth inside or and oxygen Bacterium, external preferably bacteria, carrier each in this way are a microreactor, make nitration reaction and the same stepping of anti-nitration reaction Row.

Nitrification liquid return pipe is connected on the outlet pipe in the pond MBBR；The nitrification liquid return pipe and the anoxic pond connect It connects.By the way that nitrification liquid return pipe is arranged, extra nitrification liquid can be flowed back into anoxic pond, further utilize nitrification liquid, improved Nitrification liquid utilization rate reduces cost of investment, improves resource utilization.

The inclined-tube sedimentation tank connects sludge collecting pipe, and the sludge collecting pipe connects sludge-tank；The inclined-tube sedimentation tank Connect mud return line, the water inlet of the mud return line connection anaerobic pond.

By setting sludge collecting pipe and mud return line, it will can excessively be taken turns the remaining sludge of filtering and be received by sludge Collector flows in sludge-tank, and will not filter clean sludge and flow back into progress new round mistake in anaerobic pond by sludge recovery tube Filter, thereby improving filtration efficiency.

Another aspect according to the present utility model, as shown in Fig. 2, the utility model also provides a kind of sanitary sewage disposal side Method, comprising:

Step 1 carries out primary treatment to sanitary sewage；

Step 2 carries out anaerobism purified treatment to the sanitary sewage after the primary treatment in anaerobic pond；

Step 3 carries out anoxic purified treatment to the sanitary sewage after anaerobism purified treatment in anoxic pond；

Step 4 carries out moving bed biological membranization reaction purification to the sanitary sewage after anoxic purified treatment in the pond MBBR Processing；

Step 5, the sanitary sewage after reacting moving bed biological membranization purified treatment are done at subsequent filter sterilizing and purifying Reason.

Wherein, the step 1, further includes:

By grid pond to the outstanding floating material and suspended matter in life hand；And

By conditioning tank, to meeting in sanitary sewage, PH is reconciled and stabilizing water quality is reconciled.

The wherein step 5, comprising:

Sanitary sewage after reacting moving bed biological membranization purified treatment by inclined-tube sedimentation tank carries out at precipitation and purification Reason；

Processing is filtered by the sanitary sewage that effluent water filtering device handles precipitation and purification；

Disinfection by ultraviolet light is carried out to filtration treatment sanitary sewage by ultraviolet ray sterilizer.

The effect of this method and the effect of above-mentioned apparatus are corresponding, and details are not described herein.

In order to further increase the intelligent of the domestic sewage processing system, the first water quality is set in anaerobic pond water inlet pipe and is adopted Acquisition means, for acquiring the pH value of sewage, content of beary metal (including copper ion ratio, cadmium ion ratio and nickel ion for the first time The heavy metals such as ratio) and the indexs such as fat content, and the first acquisition data are uploaded into cloud.

Then the second water quality acquisition device is set in the pond MBBR water outlet end, for the pH value of acquisition sewage for the second time, again The indexs such as tenor (including the heavy metals such as copper ion ratio, cadmium ion ratio and nickel ion ratio) and fat content, and will Second acquisition data upload to cloud.

It determines how and preferably purifies water in conjunction with the data of first time acquisition and the data of second of acquisition, select in oxygen Pond, anoxic pond increase corresponding purifier in the pond MBBR.

It is also possible to carry out big data analysis by cloud data to the data of first time acquisition, judge source water of living Whether matter is problematic, while positioning system can also be arranged in the domestic sewage processing system, count greatly by positioning system According to analysing whether it is regional similar sewage, and then judge region water quality etc..

The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field Technician person for, various modifications and changes may be made to the present invention.It is all the spirit and principles of the utility model it Interior, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of domestic sewage processing system characterized by comprising

Water inflow disposal plant, for carrying out primary treatment to sanitary sewage；

Anaerobic pond is connect with the water inflow disposal plant, handles sewage under anaerobic environment；

Anoxic pond is connect with the anaerobic pond, handles sewage under anaerobic environment；

The pond MBBR is connect with the anoxic pond, for carrying out moving bed biological membranization reaction purification to sewage；

What is connect with the pond MBBR goes out water treatment facilities, for treated, water to do subsequent filter sterilizing and purifying.

2. domestic sewage processing system according to claim 1, which is characterized in that the water inflow disposal plant includes:

Grid pond is connect with sanitary sewage outlet pipe, for removing floating material and suspended matter in sanitary sewage；

Conditioning tank, the water inlet of the conditioning tank are connect with the grid pond, the water outlet of the conditioning tank and the anaerobic pond Connection, for the PH conciliation and water quality conciliation in sanitary sewage.

3. domestic sewage processing system according to claim 2, which is characterized in that it is described go out water treatment facilities include:

Inclined-tube sedimentation tank, water inlet are connect with the water outlet in the pond MBBR, for treated, sewage to be combined formula Precipitating；

Effluent water filtering device is connect with the inclined-tube sedimentation tank, for being filtered to combined type oettIed sewage；

Ultraviolet ray sterilizer is connect with the effluent water filtering device, for carrying out disinfection by ultraviolet light to the sewage of filtering.

4. domestic sewage processing system according to claim 3, which is characterized in that air blower is arranged on the pond MBBR.

5. domestic sewage processing system according to claim 4, which is characterized in that be connected on the outlet pipe in the pond MBBR Nitrification liquid return pipe；

The nitrification liquid return pipe is connect with the anoxic pond.

6. domestic sewage processing system according to claim 5, which is characterized in that the inclined-tube sedimentation tank connection sludge is received Collector, the sludge collecting pipe connect sludge-tank；

The inclined-tube sedimentation tank connects mud return line, the water inlet of the mud return line connection anaerobic pond.