CN213739090U - Bury formula integration sewage treatment device - Google Patents

Abstract

The utility model provides a bury formula integration domestic sewage treatment device, it includes anaerobism biological oxidation pond, contact oxidation pond, biological denitrogenation pond, biological dephosphorization pond that sets gradually along sewage flow direction. The utility model provides a bury formula integration domestic sewage treatment device not only can effectively reduce nitrogen phosphorus content, still has the back flush function, increases equipment life, and the simple maintenance of being convenient for of equipment.

Description

Bury formula integration sewage treatment device

Technical Field

The utility model belongs to the sewage treatment field especially relates to a bury formula integration domestic sewage treatment device.

Background

Traditional integration buries formula sewage treatment plant is carrying out the in-process of handling sewage, mainly handles sewage through the AO technology, and the nitrogen and phosphorus removal effect in the processing sewage is relatively poor, and this has just led to traditional integration to bury formula sewage treatment plant and can't satisfy the emission requirement to nitrogen phosphorus content to current sewage treatment in-process.

CN201810955885.9 discloses a "sewage treatment system", this invention provides a sewage treatment system, includes: a composite processing device; an alkaline residue treatment device; the sewage treatment device comprises an oil separation structure, a flotation structure, a biochemical unit, a secondary sedimentation tank structure and a high-density sedimentation structure, and sewage from the composite treatment device and the alkaline residue treatment device is mixed in the sewage treatment device to form partial circulating water for supplementing water; the circulating water device is communicated with the sewage treatment device and is used for receiving qualified sewage treated by the sewage treatment device as circulating water supplement water; and the salt-containing sewage treatment device is communicated with the circulating water device so as to carry out desalination treatment on the salt-containing sewage discharged from the circulating water device. But the treatment effect is reduced along with the increase of the use time in the use process. And has poor treatment effect on nitrogen and phosphorus

The invention discloses a sewage treatment system which comprises a machine body, wherein a servo motor is fixedly arranged on the left side of the inner wall of the machine body, a stirring fan is fixedly arranged at the top of an output shaft of the servo motor, a driving motor is fixedly arranged at the bottom of the inner wall of the machine body, a T-shaped loop bar is fixedly connected to the top of the output shaft of the driving motor, a sewage treatment box is fixedly connected to the middle of the front surface of the machine body, and the top of the T-shaped loop bar penetrates through the machine body and extends into the sewage treatment box; have horizontal clearance board through the inside activity joint at the organism, and drive the inner wall of horizontal clearance board in to the catch basin of organism on the T shape loop bar through driving motor and clean, be convenient for stir sewage among the sewage treatment box, the inner wall of solid-state impurity deposit and absorption sewage treatment box in the sewage has been avoided, cause the inner wall scaling of sewage treatment box and outlet pipe then, thereby cause the outlet pipe with sewage treatment box fixed connection to take place to block up, the device can effectively prevent to block up, the life of the device is prolonged. But the maintenance of the stirring fan is complicated.

CN201910369996.6 discloses a sewage treatment system, which comprises a house body, a sewage treatment facility and a dosing device. The house body includes the bottom plate, with the roof of bottom plate interval setting and connect the wall body between bottom plate and roof, only need when on-the-spot installation sewage treatment system with the house body fix predetermine the mounted position can, need not additionally carry out sewage treatment facility and accessory equipment's installation, shortened construction cycle effectively. But requires more floor space above the ground.

Disclosure of Invention

An object of the utility model is to provide a bury formula integration sewage treatment device to provide at least advantage that will explain later.

Another object of the utility model is to provide a bury formula integration sewage treatment device, not only can effectively reduce nitrogen phosphorus content, can use back flush system in addition, increase equipment life, and the simple maintenance of being convenient for of equipment.

The technical scheme of the utility model as follows:

a buried integrated domestic sewage treatment device comprises an anaerobic biological oxidation tank, a contact oxidation tank, a biological denitrification tank and a biological dephosphorization tank which are sequentially arranged along the flow direction of sewage, wherein the biological denitrification tank is arranged in the anaerobic biological oxidation tank;

a lifting pump is arranged between the anaerobic biological oxidation tank and the sewage tank;

the bottom parts of the contact oxidation tank, the biological denitrification tank and the biological dephosphorization tank are respectively provided with an air inlet, the air inlets are respectively connected to the output end of a fan through a first air inlet pipeline, a second air inlet pipeline and a third air inlet pipeline, and the first air inlet pipeline, the second air inlet pipeline and the third air inlet pipeline are respectively provided with a first air inlet valve, a second air inlet valve and a third air inlet valve;

anaerobism biological oxidation pond contact oxidation pond biological denitrogenation pond with biological dephosphorization bottom of the pool portion is connected to the back flush pump through first back flush pipeline, second back flush pipeline, third back flush pipeline and fourth back flush pipeline respectively, first back flush pipeline the second back flush pipeline the third back flush pipeline with be provided with first back flush valve, second back flush valve, third back flush valve and fourth back flush valve on the fourth back flush pipeline respectively.

Preferably, in the buried integrated domestic sewage treatment equipment, a sedimentation tank is further arranged between the contact oxidation tank and the biological denitrification tank, and a sludge cleaning device is arranged in the sedimentation tank.

Preferably, in the buried integrated domestic sewage treatment equipment, at least one sand filter is arranged behind the biological dephosphorization tank.

Preferably, in the buried integrated domestic sewage treatment device, the bottoms of the sedimentation tank and the sand filter tank are respectively connected to the backwashing pump through a fifth backwashing pipeline and a sixth backwashing pipeline, and the fifth backwashing pipeline and the sixth backwashing pipeline are respectively provided with a fifth backwashing valve and a sixth backwashing valve.

Preferably, in the buried integrated domestic sewage treatment equipment,

the anaerobic biological oxidation tank, the contact oxidation tank, the sedimentation tank, the biological denitrification tank, the biological dephosphorization tank and the sand filter tank are arranged on the periphery of the sewage tank layer by layer in a ring shape;

a tubbiness shell that has upper portion open-ended will the effluent water sump anaerobism biological oxidation pond contact oxidation pond the sedimentation tank biological denitrogenation pond biological dephosphorization pond with including the sand filter is accomodate, just tubbiness shell upper portion has an upper cover that can open, the upper cover with the surface of tubbiness shell has a corrosion-resistant coating.

The utility model discloses following beneficial effect has:

the sewage is treated by using anaerobic microorganisms, so that the peculiar smell of the sewage and the number of harmful bacterial colonies are reduced;

the biological denitrification tank utilizes porous medium substances to enable microorganisms to complete denitrification process, and simultaneously further reduces the concentration of suspended matters in the sewage; after denitrification is finished, the sewage enters a biological dephosphorization tank, phosphorus in the sewage is further reacted by phosphorus accumulating bacteria in the biological dephosphorization tank, and the phosphorus concentration in the sewage is reduced;

after biological dephosphorization is finished, in order to further ensure the sewage treatment effect, sand filtration is carried out on the sewage to further reduce the concentration of pollutants, so that the removal rates of COD, ammonia nitrogen and total phosphorus of the sewage respectively reach 90.0%, 95.0% and 96.0%;

in order to ensure the decontamination effect of the process, the back washing device is arranged to reduce the concentration of pollutants in water flow passing through the sand filter, the biological dephosphorization tank, the biological denitrification tank, the sedimentation tank, the contact oxidation tank and the anaerobic biological oxidation tank, improve the pollutant removal rate of the equipment and prolong the service life of the equipment.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the buried integrated domestic sewage treatment equipment provided by the utility model.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1, the utility model provides a buried integrated domestic sewage treatment device, which comprises an anaerobic biological oxidation tank 2, a contact oxidation tank 3, a biological denitrification tank 5 and a biological dephosphorization tank 6 which are arranged in sequence along the sewage flow direction, wherein;

a lifting pump is arranged between the anaerobic biological oxidation tank 2 and the sewage tank 1;

the bottom parts of the contact oxidation tank 3, the biological denitrification tank 5 and the biological dephosphorization tank 6 are respectively provided with an air inlet, the air inlets are respectively connected to the output end of a fan through a first air inlet pipeline, a second air inlet pipeline and a third air inlet pipeline, the first air inlet pipeline, the second air inlet pipeline and the third air inlet pipeline are respectively provided with a first air inlet valve, a second air inlet valve and a third air inlet valve, and the air inlet flow can be adjusted according to different aeration flow requirements through the air inlet valves;

anaerobism biological oxidation pond 2 contact oxidation pond 3 biological denitrogenation pond 5 with 6 bottoms in biological dephosphorization pond are connected to the back flush pump through first back flush pipeline, second back flush pipeline, third back flush pipeline and fourth back flush pipeline respectively, first back flush pipeline the second back flush pipeline the third back flush pipeline with be provided with first back flush valve, second back flush valve, third back flush valve and fourth back flush valve on the fourth back flush pipeline respectively, and the back flush valve can be opened simultaneously or alone.

The utility model provides an in the embodiment of the formula integration domestic sewage treatment equipment of burying, contact oxidation pond 3 with still be provided with a sedimentation tank 4 between the biological denitrification pond 5, have sludge cleaning device in the sedimentation tank 4.

The utility model provides an in the embodiment of formula of burying integration domestic sewage treatment equipment, be provided with at least one sand filter 7 behind biological dephosphorization pond 6.

The utility model provides an in an embodiment of formula of burying integration domestic sewage treatment device, sedimentation tank 5 with 7 bottoms in sand filter are connected to through fifth back flush pipeline and sixth back flush pipeline respectively the back flush pump, the fifth back flush pipeline with be provided with fifth back flush valve and sixth back flush valve on the sixth back flush pipeline respectively.

In order to facilitate the transportation and the assembly, in one embodiment of the buried integrated domestic sewage treatment equipment provided by the utility model,

the anaerobic biological oxidation tank 2, the contact oxidation tank 3, the sedimentation tank 4, the biological denitrification tank 5, the biological dephosphorization tank 6 and the sand filter 7 are arranged on the periphery of the sewage tank 1 in a ring shape layer by layer;

a tubbiness shell 8 that has upper portion open-ended will effluent water sump 1 anaerobism biological oxidation pond 2 contact oxidation pond 3 sedimentation tank 4 biological denitrogenation pond 5 biological dephosphorization pond 6 with including sand filter 7 is accomodate, just tubbiness shell 8 upper portion has an upper cover that can open, the upper cover with tubbiness shell 8's surface has a corrosion resistant coating.

During sewage passes through the anaerobism biological oxidation pond of elevator pump in inserting formula integration sewage treatment device with sewage, use anaerobic microorganism to sewage treatment, reduce the quantity of sewage peculiar smell and harmful bacterial colony. After the anaerobic reaction of the sewage is finished, the sewage enters a contact oxidation tank, so that organic matters in the sewage are further converted into carbon dioxide and nitrogen-containing organic matters, and the content of pollutants in the sewage is further reduced. The sewage enters a sedimentation tank after the anaerobic reaction, suspended matters in the sewage and suspended matters generated after the biological reaction are precipitated, and the part is provided with a sludge cleaning device to prolong the service life of the buried integrated sewage treatment equipment. The sewage enters a biological denitrification tank after being precipitated, and the denitrification process of the microorganisms is completed by utilizing porous media substances in the biological denitrification tank, and meanwhile, the concentration of suspended matters in the sewage is further reduced. And (4) after denitrification is finished, the sewage enters a biological dephosphorization tank, and phosphorus in the sewage is further reacted by utilizing phosphorus accumulating bacteria in the biological dephosphorization tank, so that the phosphorus concentration in the sewage is reduced. After biological dephosphorization is finished, in order to further ensure the sewage treatment effect, the sewage is subjected to sand filtration to further reduce the concentration of pollutants, so that the removal rates of COD, ammonia nitrogen and total phosphorus of the sewage respectively reach 90.0%, 95.0% and 96.0%.

In order to ensure the decontamination effect of the process, the tail end of the equipment is provided with a back washing device to ensure that water flows through a sand filter, a biological dephosphorization tank, a biological denitrification tank, a sedimentation tank, a contact oxidation tank and an anaerobic biological oxidation tank, the concentration of pollutants in the water is reduced, and the pollutant removal rate of the equipment is improved.

The utility model discloses simplify the use, practice thrift the cost, increase nitrogen and phosphorus removal effect through will newly-increased biological denitrogenation pond, biological dephosphorization pond to be equipped with the change time that backwash pump extension sewage treatment device packed, the utility model is suitable for a domestic sewage handles.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims (5)

1. A buried integrated domestic sewage treatment device is characterized by comprising an anaerobic biological oxidation tank, a contact oxidation tank, a biological denitrification tank and a biological dephosphorization tank which are sequentially arranged along the flow direction of sewage, wherein the biological denitrification tank is arranged in the anaerobic biological oxidation tank;

a lifting pump is arranged between the anaerobic biological oxidation tank and the sewage tank;

the bottom parts of the contact oxidation tank, the biological denitrification tank and the biological dephosphorization tank are respectively provided with an air inlet, the air inlets are respectively connected to the output end of a fan through a first air inlet pipeline, a second air inlet pipeline and a third air inlet pipeline, and the first air inlet pipeline, the second air inlet pipeline and the third air inlet pipeline are respectively provided with a first air inlet valve, a second air inlet valve and a third air inlet valve;

anaerobism biological oxidation pond contact oxidation pond biological denitrogenation pond with biological dephosphorization bottom of the pool portion is connected to the back flush pump through first back flush pipeline, second back flush pipeline, third back flush pipeline and fourth back flush pipeline respectively, first back flush pipeline the second back flush pipeline the third back flush pipeline with be provided with first back flush valve, second back flush valve, third back flush valve and fourth back flush valve on the fourth back flush pipeline respectively.

2. A buried integrated domestic sewage treatment equipment according to claim 1, wherein a sedimentation tank is further provided between said contact oxidation tank and said biological denitrification tank, said sedimentation tank having a sludge cleaning device therein.

3. A buried integrated domestic sewage treatment apparatus according to claim 2 wherein at least one sand filter is provided after said biological dephosphorization tank.

4. A buried integrated domestic sewage treatment apparatus according to claim 3, wherein the bottoms of said sedimentation tank and said sand filter are connected to said backwash pump by a fifth backwash pipeline and a sixth backwash pipeline, respectively, said fifth backwash pipeline and said sixth backwash pipeline being provided with a fifth backwash valve and a sixth backwash valve, respectively.

5. A buried integrated domestic sewage treatment apparatus according to claim 4,

the anaerobic biological oxidation tank, the contact oxidation tank, the sedimentation tank, the biological denitrification tank, the biological dephosphorization tank and the sand filter tank are arranged on the periphery of the sewage tank layer by layer in a ring shape;

a tubbiness shell that has upper portion open-ended will the effluent water sump anaerobism biological oxidation pond contact oxidation pond the sedimentation tank biological denitrogenation pond biological dephosphorization pond with including the sand filter is accomodate, just tubbiness shell upper portion has an upper cover that can open, the upper cover with the surface of tubbiness shell has a corrosion-resistant coating.

Images