CN210001652U - Excrement collecting sewage recycling treatment device and system - Google Patents

Abstract

The utility model relates to an kind collection just sewage resourceful treatment device and system, the device include the casing, the casing includes the anaerobic digestion room that separates and arrange in proper order from bottom to top through the baffle, surge chamber and aerobic reaction room, anaerobic digestion room and aerobic reaction room pass through communicating pipe intercommunication and two indoor corresponding biofilm carriers that are equipped with respectively, are equipped with sewage inlet tube and marsh gas collecting pipe on the anaerobic digestion room, and aerobic reaction room has the drainage channel with the surge chamber intercommunication, is equipped with the purification outlet pipe on the surge chamber, the utility model discloses integrate anaerobic digestion room, surge chamber and aerobic reaction room, when guaranteeing just sewage treatment effect to the collection, can reduce processing apparatus's area effectively.

Description

Excrement collecting sewage recycling treatment device and system

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to kinds of collection just sewage resourceful treatment device and system.

Background

The toilet of the ordinary-speed train in China is basically in a direct-discharge mode, namely excrement sewage is directly discharged from a running train compartment to the outside of the train body. In recent years, motor train unit trains are gradually popularized, and compared with traditional general speed trains, motor train unit train carriages are provided with excrement collecting facilities, and corresponding excrement collecting sewage is collected and discharged in a station in a centralized manner.

The present common train excrement collecting sewage treatment technology includes Anaerobic Baffled Reactor (ABR) process, SBR process, anaerobic biological filter (AF) process, Membrane Bioreactor (MBR) process, aeration biological fluidized bed process, etc. the above processes have simple structure, small occupied area, good treatment effect , and complex operation, for example, 201810150292.5 utility model provides high concentration sewage treatment system and treatment method, the system includes waste water storage tank, stage lift pump, stage flocculation reaction tank, stage vertical flow sedimentation tank, secondary lift pump, micro-electrolysis reactor, secondary flocculation reaction tank, secondary vertical flow sedimentation tank, biological aeration tank, and divides the treatment of excrement collecting sewage into nine large flows, which need to be operated simultaneously, and is not suitable for railway station.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an kinds of collection just sewage resourceful treatment device and system can solve prior art's partial defect at least.

The embodiment of the utility model provides an kinds of collection just sewage resourceful treatment device, which comprises a housin, the casing includes anaerobic digestion room, surge chamber and the aerobic reaction room that just arranges in proper order from bottom to top through the baffle partition, anaerobic digestion room with aerobic reaction room is equipped with corresponding biofilm carrier respectively through communicating pipe intercommunication and two indoor, be equipped with sewage inlet tube and biogas collecting pipe on the anaerobic digestion room, aerobic reaction room have with the drainage channel of surge chamber intercommunication, be equipped with on the surge chamber and purify the outlet pipe.

, the buffer chamber is provided with a return pipe, the return pipe is connected to an upstream sewage adjusting tank or a sewage pumping well, and the return pipe is provided with a return control valve.

In an embodiment , the buffer chamber is partitioned into an inflow chamber and an outflow chamber by a baffle, a space is provided between the bottom end of the baffle and the bottom surface of the buffer chamber to communicate the two flow chambers, the drainage channel is communicated with the inflow chamber, and the purification outlet pipe is communicated with the outflow chamber.

In an embodiment , the horizontal cross-sectional area of the inflow chamber is smaller than the horizontal cross-sectional area of the outflow chamber.

In an embodiment , the return tube is disposed proximate to the buffer chamber floor, the buffer chamber floor having a slope that slopes toward the return tube.

As an embodiment , the anaerobic digestion chamber is divided into a plurality of digestion areas sequentially connected by a plurality of baffle walls, and the sewage flow directions of two adjacent digestion areas are respectively ascending flow and descending flow, wherein the sewage inlet pipe is connected with the head end digestion area, and the communicating pipe is connected with the tail end digestion area.

In , a flow guide plate is set at the bottom of the baffle partition wall at the outlet side of the downflow digestion zone, and a flow guide channel tapering along the effluent direction is enclosed between the flow guide plate and the bottom of the anaerobic digestion chamber.

In of an embodiment, the aerobic reaction chamber is provided with a water distributor, the water distributor includes a plurality of water distribution branch pipes, and each of the water distribution branch pipes is communicated with the outlet end of the communicating pipe and is provided with a plurality of water distribution holes.

In an embodiment , the packing disposed in the aerobic reaction chamber is a fixed packing and is located below the water distributor.

In of an embodiment, the connection pipe is provided with a flow guide control valve.

As an embodiment , the aerobic reaction chamber has a convective air channel on its sidewall.

In example , a buffer chamber filler in which facultative bacteria grow is provided in the buffer chamber.

in an embodiment, the housing is at least partially buried underground.

, a decanter capable of automatically adjusting the decanting height along with the liquid level is arranged in the buffer chamber, and the purification water outlet pipe is connected with the decanter.

of embodiment, the decanter comprises a float and a flexible hose, wherein the float is provided with a water inlet hole, and the flexible hose is respectively connected with the inner cavity of the float and the purified water outlet pipe.

The embodiment of the utility model provides a still relate to kinds of collection just sewage resource processing system, include the biological treatment mechanism who is connected with collection just sewage inlet line, biological treatment mechanism includes at least sets as above collection just sewage resource processing apparatus.

, the biological treatment mechanism comprises a plurality of sets of excrement collecting and sewage recycling treatment devices connected in series.

According to , the biological treatment mechanism comprises a plurality of sets of excrement collecting sewage resource treatment devices connected in parallel, the excrement collecting sewage inlet pipeline comprises an excrement collecting sewage main pipe and a plurality of excrement collecting sewage branch pipes, and the excrement collecting sewage branch pipes are connected with the sewage inlet pipes in the same number and correspondingly.

The embodiment of the utility model provides a following beneficial effect has at least:

the utility model provides an excrement and urine collection sewage resourceful treatment device integrates anaerobic digestion room, surge chamber and aerobic reaction room, when guaranteeing to the sewage treatment effect of collection, can reduce processing apparatus's area effectively. Biological fillers are arranged in the anaerobic digestion chamber and the aerobic reaction chamber, so that the total amount of organisms in the two treatment chambers is greatly increased, and the treatment of high-concentration excrement collecting sewage is facilitated; biogas can be collected through the biogas collecting pipe, so that the recycling treatment of excrement collecting sewage is realized, and the economic benefit of the operation of the treatment device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a feces collection and sewage recycling device provided by an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an anaerobic digestion chamber according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a water distributor provided by the embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.

Example

As shown in fig. 1, the embodiment of the utility model provides an kinds of excrement collecting sewage resourceful treatment device, including casing 100, casing 100 includes anaerobic digestion room 101, buffer chamber 103 and the aerobic reaction room 102 that separate through baffle 104 and arrange in proper order from bottom to top, anaerobic digestion room 101 with aerobic reaction room 102 is through communicating pipe 107 intercommunication and two indoor corresponding biological fillers that are equipped with respectively, be equipped with sewage inlet tube 105 and marsh gas collecting pipe 106 on the anaerobic digestion room 101, aerobic reaction room 102 have with the drainage channel of buffer chamber 103 intercommunication, be equipped with on the buffer chamber 103 and purify outlet tube 108.

The housing 100 may have a cylindrical structure, a polygonal cylindrical structure, or the like. The housing 100 may be made of stainless steel, or may be a reinforced concrete or glass fiber reinforced plastic housing 100.

In the anaerobic digestion chamber 101, anaerobic digestion reaction is performed on the sewage to degrade most organic matters in the excrement-collecting sewage and generate methane, and anaerobic digestion bacteria are added; the anaerobic digestion chamber 101 preferably uses the suspended filler 1013 as a carrier of anaerobic digestion bacteria, and the filler 1013 may be polyethylene, polypropylene, polyurethane, etc., and the shape of the filler 1013 may be a crisscross cylinder, a cross cylinder, a sphere, etc., and of course, the filler 1013 may be made of other materials or may be made into other shapes on the premise of satisfying a large specific surface area.

In the aerobic reaction chamber 102, can further degrade organic matters in the sewage, and preferably promote the sewage to carry out nitration reaction and denitrification reaction, thereby realizing the denitrification, preferably, nitrifying bacteria and denitrifying bacteria are added, wherein, the nitration reaction is completed by the nitrifying bacteria attached to the outer layer of the filler under the aerobic condition, and the denitrification is completed by the denitrifying bacteria in the filler under the anoxic condition.

The communication pipe 107 is a continuous pipe penetrating from the inside of the anaerobic digestion chamber 101 to the inside of the aerobic reaction chamber 102 through the buffer chamber 103, and the upper and lower ends of the communication pipe 107 are preferably provided with a mesh for preventing the filler 1013 in the anaerobic digestion chamber 101 from entering the communication pipe 107.

, preferably, a diversion control valve 1071 is disposed on the connection pipe 107, and the diversion control valve 1071 can control whether the anaerobic digestion chamber 101 is connected to the aerobic reaction chamber 102 or not, in addition, during the application process, the ascending flow rate of the sewage in the connection pipe 107 can be adjusted within a fixed range of , so that most of the suspended matters sink in the connection pipe 107 by gravity, and the suspended matters are prevented from entering the aerobic reaction chamber 102, thereby ensuring the sewage treatment effect.

As shown in fig. 1, the biogas collection pipe 106 is preferably provided with a biogas collection control valve (not shown) which may be an automatic valve or a manual valve , preferably a solenoid valve, for remote control, and during operation in the anaerobic digestion chamber 101, biogas is gradually generated and collected at the top of the anaerobic digestion chamber 101, and the biogas collection control valve is opened when the gas volume in the biogas collection area at the top of the anaerobic digestion chamber 101 reaches constant value (or the liquid level in the anaerobic digestion chamber 101 is lower than constant value).

, a device for preventing the backflow of biogas can be arranged on the biogas collecting pipe 106, the backflow preventing device can be one-way valves, the biogas is only limited to be discharged from the anaerobic digestion chamber 101 and can not flow back to the anaerobic digestion chamber 101, in addition, a bypass pipe (shown and not marked) is arranged on the biogas collecting pipe 106, a bypass control valve is arranged on the bypass pipe, the bypass point of the bypass pipe is positioned at the inlet side of the biogas collection control valve, and air can be accumulated at the top of the anaerobic digestion chamber 101 at the initial operation stage of the anaerobic digestion chamber 101 and can be discharged through the bypass pipe.

The excrement collecting sewage enters the anaerobic digestion chamber 101 from the sewage inlet pipe 105 for anaerobic digestion reaction, and the sewage can enter the aerobic reaction chamber 102 from the anaerobic digestion chamber 101 for reaction because the anaerobic digestion chamber 101 is communicated with the aerobic reaction chamber 102; as the aerobic reaction chamber 102 is communicated with the buffer chamber 103, sewage can enter the buffer chamber 103 from the aerobic reaction chamber 102, and the sewage can be discharged after standing in the buffer chamber 103.

The excrement collecting sewage recycling treatment device provided by the embodiment integrates the anaerobic digestion chamber 101, the buffer chamber 103 and the aerobic reaction chamber 102, ensures the excrement collecting sewage treatment effect, and can effectively reduce the occupied area of the treatment device. Biological fillers are arranged in the anaerobic digestion chamber 101 and the aerobic reaction chamber 102, so that the total amount of organisms in the two treatment chambers is greatly increased, and the treatment of high-concentration excrement collecting sewage is facilitated; biogas can be collected through the biogas collecting pipe 106, so that the recycling treatment of excrement collecting sewage is realized, and the economic benefit of the operation of the treatment device is improved.

, the structure of the anaerobic digestion chamber 101 is optimized, as shown in fig. 1 and 2, the inner cavity of the anaerobic digestion chamber 101 is divided into a plurality of digestion areas which are communicated in sequence by a plurality of baffle walls 1011, the sewage flow direction of two adjacent digestion areas is respectively ascending flow and descending flow, wherein the sewage inlet pipe 105 is communicated with the head end digestion area, and the communicating pipe 107 is communicated with the tail end digestion area.

The wall surface of the baffling partition wall 1011 is a plane and is parallel to the vertical direction, all digestion areas are arranged from left to right in sequence, the outlet end of the sewage inlet pipe 105 extends into the digestion area at the left end, and the bottom end of the communicating pipe 107 is positioned in the digestion area at the right end; the water inlet of the digestion area is positioned on the left baffling partition wall 1011, and the water outlet of the digestion area is positioned on the right baffling partition wall 1011;

in another preferred embodiment, as shown in fig. 1 and fig. 2, the baffling partitions 1011 are annular walls, and the baffling partitions 1011 are sequentially sleeved (preferably coaxially sleeved), that is, the digestion areas are annular areas and sequentially sleeved, the outlet end of the sewage inlet pipe 105 is located in the outermost digestion area, and the bottom end of the communicating pipe 107 is located in the innermost digestion area. The water inlet of the digestion zone is located on its outer ring baffle wall 1011 and the water outlet of the digestion zone is located on its inner ring baffle wall 1011.

Of the two adjacent digestion zones, wherein digestion zones are upflow digestion zones and digestion zones are downflow digestion zones, it is obvious that the upflow digestion zones have their water inlets below their water outlets, their water inlets are formed at the lower/bottom ends of the respective side baffle walls 1011 and their water outlets are formed at the upper portions of the respective side baffle walls 1011, and the downflow digestion zones have their water inlets above their water outlets, their water inlets are formed at the upper/top ends of the respective side baffle walls 1011 and their water outlets are formed at the lower/bottom ends of the respective side baffle walls 1011. since the top of the anaerobic digestion chamber 101 is required as a biogas channel, it is required to have a spacing of between the top ends of the respective baffle walls 1011 and the top surface of the anaerobic digestion chamber 101. preferably, the water passage is located at the top/upper portion of the wall and is directly provided at the bottom of the anaerobic digestion chamber 101. for the bottom end of the wall/baffle walls 1011, it can be mounted on the side walls of the anaerobic digestion chamber 101 or mounted on the side walls of the adjacent anaerobic digestion chamber 101 or the baffle walls 1011, and the baffle walls 1011 are provided with three baffle walls 101 arranged in the anaerobic digestion chamber 101 in this embodiment, as shown in the drawings.

In this embodiment, the anaerobic digestion chamber 101 is divided into a plurality of digestion zones by the baffle walls 1011 to form a baffled anaerobic digestion zone in which the ascending flow and the descending flow of each digestion zone are alternately performed, prevents the sewage from forming a short flow in the anaerobic digestion chamber 101 to effectively improve the anaerobic digestion effect, and improves the mixing effect of the sewage and the sludge by using the sewage to impact the sludge at the bottom of the anaerobic digestion chamber 101, thereby improving the anaerobic digestion effect.

preferably, as shown in fig. 1 and 2, the bottom end of the outlet side baffle wall 1011 of the downflow digestion zone is provided with a guide plate 1012, and a guide channel which is gradually reduced along the effluent direction (i.e. the water passing area is gradually reduced) is enclosed between the guide plate 1012 and the bottom surface of the anaerobic digestion chamber 101. by arranging the guide plate 1012, a venturi structure can be formed, which can improve the impact effect of sewage on sludge at the bottom of the anaerobic digestion chamber 101, and is beneficial to the uniform mixing of mud and water.

In addition, as shown in fig. 1, the bottom of the anaerobic digestion chamber 101 is provided with a sludge discharge mechanism, which preferably adopts a perforated sludge discharge pipe 109 and can discharge sludge at the bottom of the anaerobic digestion chamber 101 periodically or aperiodically, in another embodiment, the bottom of the anaerobic digestion chamber 101 has a slope of , which is convenient for collecting settled sludge in the anaerobic digestion chamber 101, in step , a sludge collection pit can be arranged at the bottom of the anaerobic digestion chamber 101, the slope of the bottom of the anaerobic digestion chamber 101 guides the sludge into the sludge collection pit, a submersible sewage pump can be arranged in the sludge collection pit and can discharge the sludge periodically or aperiodically, the discharged sludge can be recycled in step , for example, when the content of organic matters in the sludge is high, a microbial fuel cell can be manufactured, and when the content of organic matters in the sludge is low, the sludge can be manufactured into ecological fertilizer after being concentrated and dehydrated, and the like.

the aerobic reaction chamber 102 is optimized, it can be understood that the aerobic reaction chamber 102 is provided with an aerobic environment, for example, an aerator pipe is arranged in the aerobic reaction chamber 102. in this embodiment, as shown in fig. 1, preferably, an air convection channel is arranged on the side wall of the aerobic reaction chamber 102 and is communicated with the outside, the air convection channel can be in the form of a louver 1023, wherein the inverted louver 1023 is preferred to prevent sewage from splashing out of the housing 100.

, as shown in fig. 1 and 3, a water distributor 1021 is arranged in the aerobic reaction chamber 102, the water distributor 1021 comprises a plurality of water distribution branch pipes 10212, each water distribution branch pipe 10212 is communicated with the outlet end of the communicating pipe 107 and is provided with a plurality of water distribution holes 10213. based on the above structure, sewage enters the aerobic reaction zone from the communicating pipe 107 and drops from each water distribution hole 10213, the contact area between the sewage and air is large, and the oxygen transfer efficiency is high, especially in combination with the above condition of oxygenating the aerobic reaction chamber 102 by natural convection, the aerobic reaction effect is better, and energy consumption caused by mechanical aeration is avoided, the filler arranged in the aerobic reaction chamber 102 is preferably a fixed filler 1022 and is located below the water distributor 1021, and the sewage from the upper water distributor 1021 drops on the fixed filler 1022 and slowly flows down along the filler under the action of gravity, so as to ensure that the sewage can be fully contacted with the filler in the aerobic reaction chamber 102.

Referring to fig. 3, the structure of the water distributor 1021 can be optimized such that the water distributor 1021 further includes water distribution trunk pipes 10211, the water distribution trunk pipes 10211 are connected to the top end of the communicating pipe 107, and the water distribution branch pipes 10212 are respectively connected to the water distribution trunk pipes 10211. obviously, the water distribution branch pipes 10212 are symmetrically arranged on the water distribution trunk pipes 10211 to ensure the sufficiency and uniformity of the aerobic reaction, fig. 3 shows an arrangement example, and the water distributor 1021 of other symmetrically arranged structures is not described in detail in .

, the structure of the buffer chamber 103 is further optimized:

in the present embodiment, preferably, as shown in fig. 1, the partition plate 104 between the buffer chamber 103 and the aerobic reaction chamber 102 is provided with a hole to form the drainage channel, and the sewage in the aerobic reaction chamber 102 can be drained into the buffer chamber 103 by its own weight without additional power, wherein is further provided, the bottom plate of the aerobic reaction chamber 102 (i.e. the partition plate 104 between the buffer chamber 103 and the aerobic reaction chamber 102) has a gradient , and the drainage channel is inclined toward the bottom plate of the aerobic reaction chamber 102, i.e. the drainage channel is located at the lowest position of the bottom plate of the aerobic reaction chamber 102, and the bottom plate of the aerobic reaction chamber 102 can be a tapered plate or the like, wherein the drainage channel is preferably located at the center of the bottom plate of the aerobic reaction chamber 102, and the housing 100 is taken as an example, the drainage channel is preferably a circular hole, and is provided with the cylindrical housing 100, , and the coaxial communication pipe 107 passes through the coaxial drainage channel 107 and the cylindrical housing 100.

In the buffer chamber 103, the sewage after anaerobic digestion treatment and aerobic reaction treatment can be kept still in the chamber, thereby improving the cleanliness of the effluent. In another embodiment, the buffer chamber 103 is used for consuming the residual oxygen in the sewage and realizing partial dephosphorization and denitrification functions, specifically, a buffer chamber filler 1032 with facultative bacteria growing therein is arranged in the buffer chamber 103, and the facultative bacteria function to realize the functions; the buffer chamber stuffing 1032 is preferably suspension stuffing, and the stuffing structure can refer to the suspension stuffing structure in the anaerobic digestion chamber 101, which is not described in detail herein. Therefore, the present embodiment combines anaerobic digestion treatment, aerobic reaction treatment, and facultative biological treatment in the buffer chamber 103, and can efficiently treat the excrement collection wastewater, thereby achieving the purpose of recycling and low-pollution discharge.

Step preferably includes, as shown in fig. 1, a decanter 1031 which automatically adjusts the decanting height according to the liquid level in the buffer chamber 103, and a purified water outlet pipe 108 connected to the decanter 1031, by providing the decanter 1031, the water in the buffer chamber 103 can be drained adaptively according to the liquid level, ensuring the treatment effect on the sewage and the cleanliness of the drained water, in the present embodiment, a float-type decanter 1031 is used, and specifically, as shown in fig. 1, the decanter 1031 includes a float (shown, not labeled) and a flexible hose (shown, not labeled), which is provided with a water inlet hole, respectively connected to the inner chamber of the float and the purified water outlet pipe 108, and is preferably opened on the side wall of the float, the flexible hose is connected to the bottom of the float, and the purified water is drained from the water inlet hole and then from the flexible hose and the water outlet pipe 108, and further step, as shown in fig. 1, a float guide (shown, not labeled) is optionally provided on the bottom/partition 104 of the buffer chamber 103, and the float guide is slidably mounted on the float guide, , thereby avoiding the influence on the floating in the buffer chamber 103, ensuring the float-type water draining effect, and the float-lifting effect, and the float-saving-up, and the float-up-.

In an alternative preferred embodiment, as shown in fig. 1, a return pipe 110 is provided on the buffer chamber 103, the return pipe 110 is connected to an upstream sewage adjusting tank or a sewage pumping well, and a return control valve is provided on the return pipe 110. By arranging the return pipe 110, the bottom sludge and at least part of sewage in the buffer zone can flow back to an upstream process for circular treatment, the nitrogen and phosphorus removal treatment effect of the excrement collecting sewage is enhanced, the carbon source is fully utilized, the full utilization of the carbon source by the low-carbon source excrement collecting sewage is facilitated, and the treatment effect of the excrement collecting sewage is remarkably improved.

When the sewage in the buffer chamber 103 flows back to an upstream process, no additional power is needed, and the sewage can flow back by the self gravity of the sewage; wherein, the sewage adjusting tank or the sewage pumping well is a front-end structure of the device, and the water inlet form of the device is ensured to be pressure flow.

When the sewage in the buffer chamber 103 flows back to the upstream sewage adjusting pond or sewage pumping well, the return pipe 110 is preferably arranged on the side wall of the buffer chamber 103, and the return control valve on the return pipe 110 can be a conventional control valve such as a solenoid valve.

The return pipe 110 is preferably arranged close to the bottom plate of the buffer chamber (the partition 104 between the buffer chamber 103 and the anaerobic digestion chamber 101) to ensure that the sludge at the bottom of the buffer chamber 103 can flow back, and the bottom plate of the buffer chamber has a slope towards the return pipe 110, so that the return of the sewage and the sludge by the self gravity is facilitated.

, the buffer chamber 103 is preferably divided into an inflow chamber and an outflow chamber by a baffle 1033, the bottom end of the baffle 1033 is spaced from the bottom of the buffer chamber 103 to connect the two chambers, the drain channel is connected to the inflow chamber, and the purge outlet 108 is connected to the outflow chamber, the baffle 1033 is preferably an annular baffle 1033, the inflow chamber is located within the ring of the annular baffle 1033, the outflow chamber is located outside the ring of the annular baffle 1033, the open drain channel is located directly above the inflow chamber, the decanter 1031 is located in the outflow chamber, the top end of the baffle 1033 is also preferably spaced from the top of the buffer chamber 103, and the baffle 103can be fixed on the inner wall of the buffer chamber 103 by a bracket or the like, in the buffer chamber 103, the sewage in the inflow chamber flows downwards, and the sewage in the outflow chamber flows upwards, thereby improving the processing effect of the bacteria packing 1032 in the buffer chamber 103.

Step preferably the horizontal cross-sectional area of the inflow chamber is smaller than the horizontal cross-sectional area of the outflow chamber to ensure that the turbidity of the effluent is at a lower value.

, the structure of the device is optimized, as shown in fig. 1, the shell 100 is at least partially buried underground, and can be a fully buried structure or a semi buried structure, based on the buried structure, the shell 100 has good buffer effect to the outside climate change, can ensure the stability of the reaction temperature in the shell 100, especially in the cold season in the northern area of China, can effectively ensure the stable and reliable operation of the lower anaerobic fermentation reaction and the upper nitrification and denitrification reaction in the shell 100, reduce the heat preservation energy consumption needed by the excrement collection sewage treatment, and effectively reduce the occupied space of the treatment device.

, an insulating layer can be laid on the outer wall of the shell 100 to improve the heat-insulating effect of the shell 100, and the insulating layer can be polyurethane foam, polystyrene board, etc.

The operation control method of the excrement collecting sewage recycling device is approximately as follows:

(1) device operation control flow

Excrement-collecting sewage is injected into the anaerobic digestion chamber 101 through the sewage inlet pipe 105, the liquid level in the anaerobic digestion chamber 101 gradually rises, and residual air in the anaerobic digestion chamber 101 is discharged through a bypass pipe on the biogas collecting pipe 106. The suspended filler in the anaerobic digestion chamber 101 is driven by water flow to freely suspend and drift in the sewage, when the sewage reaches the designed maximum liquid level, a bypass control valve on the biogas collecting pipe 106 is closed, the redundant sewage enters the aerobic reaction chamber 102 through the communicating pipe 107 and drips from the water distribution hole 10213, slowly flows downwards in the fixed filler 1022 in the aerobic reaction chamber 102 and fully contacts with the air naturally convected into the aerobic reaction chamber 102.

The sewage falls from the bottom plate of the aerobic reaction chamber 102 into the buffer chamber 103, the sewage slowly flows in the two flow chambers of the buffer chamber 103, and in the process, the facultative bacteria completely consume the residual oxygen in the sewage.

The device can adopt a continuous operation mode or an intermittent operation mode:

when the continuous operation is carried out, after the excrement-collecting sewage passes through the anaerobic digestion chamber 101, the aerobic reaction chamber 102 and the buffer chamber 103, the supernatant of the buffer chamber 103 can be discharged out of the shell 100 through the decanter 1031, and the sludge and part of the sewage at the bottom of the buffer chamber 103 can flow back to an upstream sewage regulating pond or a sewage pumping well;

during intermittent operation, excrement collecting sewage sequentially passes through the anaerobic digestion chamber 101, the aerobic reaction chamber 102 and the buffer chamber 103, an electromagnetic valve on the sewage inlet pipe 105 is closed according to water outlet requirements and actual operation conditions, and the sewage in the buffer chamber 103 completely flows back to an upstream sewage adjusting tank or a sewage pumping well, namely the excrement collecting sewage sequentially passes through times of full circulation of the anaerobic digestion chamber 101 → the aerobic reaction chamber 102 → the buffer chamber 103 → the anaerobic digestion chamber 101 → the aerobic reaction chamber 102 → the buffer chamber 103 and is discharged, so that the denitrification and dephosphorization effects are enhanced.

(2) Liquid level control method in anaerobic digestion chamber 101

The biogas in the anaerobic digestion chamber 101 is gathered at the top of the chamber and can be collected through the biogas collecting pipe 106, during the operation of the device, the valve on the biogas collecting pipe 106 is kept in a normally closed state, when the biogas volume in the anaerobic digestion chamber 101 is increased to fixed value (or the liquid level of the anaerobic digestion chamber 101 is lower than fixed value), the valve on the biogas collecting pipe 106 is opened, the biogas is collected, when the biogas volume in the anaerobic digestion chamber 101 is reduced to fixed value (or the liquid level of the anaerobic digestion chamber 101 is higher than fixed value), the valve on the biogas collecting pipe 106 is closed, wherein, the other end of the biogas collecting pipe 106 is connected with a biogas collecting device, the biogas collecting device has fixed pressure and is slightly lower than the biogas pressure in the anaerobic digestion chamber 101, and after the valve on the biogas collecting pipe 106 is opened, the biogas in the anaerobic digestion chamber 101 can automatically.

Example two

The embodiment of the utility model provides a still relate to kinds of collection just sewage resource processing system, include the biological treatment mechanism who is connected with collection just sewage inlet tube 105 way, biological treatment mechanism includes at least sets of just sewage resource processing unit of collection that above-mentioned embodiment provided, and this collection just sewage resource processing unit's concrete structure here is from slightly.

In this embodiment, collection just sewage resource processing apparatus has many sets, and many sets of collection just sewage resource processing apparatus can series operation also can parallel operation, designs according to the actual collection just sewage condition:

(1) the biological treatment mechanism comprises a plurality of sets of excrement collecting sewage resource treatment devices which are connected in series, namely two sets of excrement collecting sewage resource treatment devices which are adjacently connected, wherein a purified water outlet pipe 108 of sets of excrement collecting sewage resource treatment devices is connected with a sewage water inlet pipe 105 of another sets of excrement collecting sewage resource treatment devices.

The excrement collecting sewage is sequentially treated by a plurality of sets of excrement collecting sewage resource treatment devices, the removal rate of pollutants in the sewage can be improved, the treatment effect of the excrement collecting sewage is ensured, the treated water body can reach the discharge standard, and the structure is particularly suitable for treating the high-concentration excrement collecting sewage and the excrement collecting sewage with high nitrogen and phosphorus content.

(2) The biological treatment mechanism comprises a plurality of sets of excrement collecting sewage resource treatment devices which are connected in parallel, wherein 105 pipelines of the excrement collecting sewage inlet pipe comprise an excrement collecting sewage main pipe and a plurality of excrement collecting sewage branch pipes, the quantity of the excrement collecting sewage branch pipes is the same as that of the sewage inlet pipe 105, and the excrement collecting sewage branch pipes are correspondingly connected.

In a preferred embodiment, the system further comprises a sewage pretreatment mechanism disposed on the excrement collection sewage inlet pipe 105, and the sewage pretreatment mechanism is disposed on the excrement collection sewage inlet pipe to treat the excrement collection sewage after pretreatment, so that the treatment load of the excrement collection sewage treatment device can be reduced, and the treatment effect of the excrement collection sewage can be effectively improved.

In embodiments, the sewage pretreatment mechanism comprises a sewage adjusting tank, wherein the sewage adjusting tank can be an anaerobic adjusting tank, a submersible sewage pump is arranged in the sewage adjusting tank, each sewage inlet pipe 105 is communicated with the submersible sewage pump, the sewage adjusting tank is used for adjusting and treating excrement-collecting sewage, so that the average amount of the sewage is equalized, a buffering effect is achieved, the pacing between the sewage flow and the treatment amount of the biological treatment mechanism is coordinated, and the stable and reliable operation of the system is ensured.

Of course, the sewage pretreatment mechanism is not limited to the anaerobic adjusting tank, such as a grit chamber, a flocculation tank, etc., and will not be described in detail in .

The anaerobic adjusting tank can be connected with sets of excrement collecting sewage recycling treatment devices, can also be connected with the biological treatment mechanisms in the serial connection type of the plurality of sets of excrement collecting sewage recycling treatment devices, or is connected with the biological treatment mechanisms in the parallel connection type of the plurality of sets of excrement collecting sewage recycling treatment devices, and is determined according to the actual production condition.

Obviously, the biological treatment means may be followed by a subsequent step of wastewater treatment, such as membrane treatment, fenton oxidation treatment, etc.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (18)

1. The device for recycling excrement-collecting sewage comprises a shell and is characterized in that the shell comprises an anaerobic digestion chamber, a buffer chamber and an aerobic reaction chamber which are separated by a partition plate and sequentially arranged from bottom to top, the anaerobic digestion chamber is communicated with the aerobic reaction chamber through a communicating pipe, corresponding biological fillers are respectively arranged in the anaerobic digestion chamber and the aerobic reaction chamber, a sewage inlet pipe and a methane collecting pipe are arranged on the anaerobic digestion chamber, the aerobic reaction chamber is provided with a drainage channel communicated with the buffer chamber, and a purification water outlet pipe is arranged on the buffer chamber.
2. 2. The excrement collecting sewage resource treatment device according to claim 1, wherein: the buffer chamber is provided with a return pipe, the return pipe is connected to an upstream sewage adjusting tank or a sewage pumping well, and the return pipe is provided with a return control valve.
3. 3. The excrement collecting sewage resource treatment device according to claim 2, wherein: the buffer chamber inner cavity is separated into an inflow chamber and an outflow chamber through a baffle plate, a space is formed between the bottom end of the baffle plate and the bottom surface of the buffer chamber to communicate the two flow chambers, the drainage channel is communicated with the inflow chamber, and the purification water outlet pipe is communicated with the outflow chamber.
4. 4. A waste water resource treatment apparatus as claimed in claim 3, characterized in that: the horizontal cross-sectional area of the inflow chamber is smaller than the horizontal cross-sectional area of the outflow chamber.
5. 5. The excrement collecting sewage resource treatment device according to claim 2, wherein: the backflow pipe is arranged close to the bottom plate of the buffer chamber, and the bottom plate of the buffer chamber is provided with a slope which is inclined to the backflow pipe.
6. 6. The excrement collecting sewage resource treatment device according to claim 1, wherein: the anaerobic digestion chamber inner chamber separates through multichannel baffling partition wall and forms a plurality of digestion districts that communicate in proper order, and the sewage flow direction of two adjacent digestion districts is ascending current and descending current respectively, wherein, sewage inlet tube and head end digestion district intercommunication, communicating pipe and terminal digestion district intercommunication.
7. 7. The excrement collecting sewage resource treatment device according to claim 6, wherein: and a flow guide plate is arranged at the bottom end of the flow deflection partition wall at the outlet side of the downflow digestion area, and a flow guide channel which is gradually reduced along the water outlet direction is formed between the flow guide plate and the bottom surface of the anaerobic digestion chamber in an enclosing manner.
8. 8. The excrement collecting sewage resource treatment device according to claim 1, wherein: the aerobic reaction chamber is internally provided with a water distributor, the water distributor comprises a plurality of water distribution branch pipes, and each water distribution branch pipe is communicated with the outlet end of the communicating pipe and is provided with a plurality of water distribution holes.
9. 9. The excrement collecting sewage resource treatment device according to claim 8, wherein: the filler arranged in the aerobic reaction chamber is a fixed filler and is positioned below the water distributor.
10. 10. The excrement collecting sewage resource treatment device according to claim 8, wherein: and a flow guide control valve is arranged on the communicating pipe.
11. 11. The excrement collecting sewage resource treatment device according to claim 8, wherein: and an air convection channel is arranged on the side wall of the aerobic reaction chamber.
12. 12. The apparatus for recycling sewage from facility as claimed in any of of claims 1 to 11, wherein said buffer chamber is filled with a filler for growth of facultative bacteria.
13. 13. The apparatus for recycling sewage from facility as claimed in any of claims 1 to 11, wherein the housing is at least partially buried underground.
14. 14. The apparatus for recycling sewage from facility as claimed in any of of claims 1 to 11, wherein a decanter capable of automatically adjusting a decanting height according to a liquid level is disposed in the buffer chamber, and the purifying outlet pipe is connected to the decanter.
15. 15. The excrement collecting sewage resource treatment device as claimed in claim 14, wherein: the decanter comprises a float bowl and a flexible hose, wherein the float bowl is provided with a water inlet hole, and the flexible hose is respectively connected with the inner cavity of the float bowl and the purified water outlet pipe.
16. 16, kinds of excrement collecting sewage resource treatment system, including the biological treatment mechanism connected with excrement collecting sewage inlet pipe, wherein the said biological treatment mechanism includes at least sets of excrement collecting sewage resource treatment device as claimed in any of claims 1 to 15.
17. 17. The excrement collecting sewage resource treatment system of claim 16, wherein: the biological treatment mechanism comprises a plurality of sets of excrement collecting and sewage recycling treatment devices which are connected in series.
18. 18. The system for recycling excrement collecting sewage as recited in claim 16, wherein said biological treatment mechanism comprises a plurality of sets of excrement collecting sewage recycling devices connected in parallel, said excrement collecting sewage inlet pipeline comprises an excrement collecting sewage main pipe and a plurality of excrement collecting sewage branch pipes, and said excrement collecting sewage branch pipes are connected with said sewage inlet pipes in the same number and are connected with correspondingly.

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