CN115215440B - Impact-resistant high-cold area domestic sewage treatment system - Google Patents
Impact-resistant high-cold area domestic sewage treatment system Download PDFInfo
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- CN115215440B CN115215440B CN202211011275.6A CN202211011275A CN115215440B CN 115215440 B CN115215440 B CN 115215440B CN 202211011275 A CN202211011275 A CN 202211011275A CN 115215440 B CN115215440 B CN 115215440B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to an impact-resistant high and cold area domestic sewage treatment system which comprises a water screen, an overflow tank, a biochemical treatment unit and a final sedimentation tank which are connected in sequence, wherein the water screen and the overflow tank are also connected in parallel with a spiral shell stacking machine, and the water screen and the overflow tank are used for discharging solids in the water screen and the overflow tank into the spiral shell stacking machine for treatment; the biochemical treatment unit comprises an anaerobic tank and an aerobic tank which are sequentially connected, the overflow tank is connected with the anaerobic tank through an overflow pipe, and the aerobic tank is provided with a respiration control valve and an aeration device and is used for adjusting the water flow and pressure of the aerobic tank; the aerobic tank is connected with the anaerobic tank through a return pipe; the outlet of the overflow pipe is positioned at the bottom of the anaerobic tank and is provided with a valve plate for uniformly distributing the water inlet of the anaerobic tank.
Description
Technical Field
The invention belongs to the technical field of domestic sewage treatment, and particularly relates to an impact-resistant domestic sewage treatment system in alpine regions.
Background
In the domestic sewage treatment process, a method of combining pretreatment processes such as grating, flocculation and the like with biochemical treatment of activated sludge is often adopted, and pollutants in the sewage are filtered, degraded and removed, so that the purification and standard treatment of the sewage are realized. However, in the existing domestic sewage treatment method, due to the fact that the environmental temperature and the water temperature are too low in the alpine regions such as the north, namely, the influence factors of low-temperature freezing in the alpine regions, besides being easy to freeze and difficult to flow, sewage can cause the situation that equipment such as a sewage treatment pipeline, a pump valve and the like are blocked and damaged due to freezing, and especially, the domestic sewage in villages and towns in the alpine regions in the north has large instantaneous/short-time fluctuation of water quality and water quantity due to living habits, and the sewage treatment process has large impact load of water quantity change, so that the sewage treatment operation and treatment effect are influenced.
When sewage is treated, the temperature condition can also seriously influence the bacterial and microbial activity in the biochemical treatment process of the activated sludge, microbial biodegradation treatment pollutants are difficult to play a role, the special conditions of large day-night temperature difference and large indoor and outdoor temperature difference exist in the alpine region under the condition of low temperature, the large temperature difference is unfavorable for the survival and growth of microorganisms and related bacterial in the sewage biochemical system, so that the sewage treatment efficiency and effect in the alpine region are greatly reduced, the sewage treatment system is also impacted and seriously influenced by stable standard reaching operation, the sewage is difficult to stably treat and reach the standard to discharge, and the ecological environment is destroyed.
Disclosure of Invention
Aiming at the problems, the invention provides an impact-resistant high-cold area domestic sewage treatment system which is suitable for high temperature impact load of high day-night temperature difference of villages and towns in the high-cold area and high flow impact load of short-time fluctuation of water quantity, and is matched with the design of automatic freezing prevention, slag removal and blocking prevention, automatic water flow and pressure regulation and full and uniform water flow distribution and reflux control, so that multiple multi-stage regulation on the treatment of the high-cold area village domestic sewage is realized, the combination of multi-stage water distribution and in-situ reflux of the system and reclaimed water recycling is realized, and the impact load resistance of various low temperatures, flow fluctuation and the like is higher.
The impact-resistant high and cold area domestic sewage treatment system comprises a water screen, a stirring tank, an overflow tank, a biochemical treatment unit and a final sedimentation tank which are connected in sequence, wherein the water screen and the overflow tank are also connected in parallel with a spiral shell stacking machine and are used for discharging solids in the water screen and the overflow tank into the spiral shell stacking machine for treatment;
the biochemical treatment unit comprises an anaerobic tank and an aerobic tank which are sequentially connected, the overflow tank is connected with the anaerobic tank through an overflow pipe, and the aerobic tank is provided with a respiration control valve and an aeration device and is used for adjusting the water flow and pressure of the aerobic tank; the water outlet pipe of the aerobic tank is connected with one end of a return pipe in parallel, and the other end of the return pipe is connected with the anaerobic tank;
the outlet of the overflow pipe is positioned at the bottom of the anaerobic tank and is provided with a valve plate for uniformly distributing the water inlet of the anaerobic tank.
Optionally, the water screen is funnel-shaped, the upper part is provided with a filter screen, the side surface is provided with a vibration exciter, and the vibration exciter adopts intermittent frequency conversion control to drive the water screen to mechanically vibrate.
Further optionally, a first slag discharging port is arranged on the side wall of the water screen, and the first slag discharging port is located above the filter screen and is used for discharging solid pollutants intercepted by the water screen out of the water screen.
Optionally, the bottom outlet of the water screen is connected with the water inlet of the stirring tank, the water outlet of the stirring tank is connected with the water inlet of the overflow tank, and the water inlet of the stirring tank and the water outlet of the stirring tank are respectively arranged at the top and the bottom of the stirring tank; the stirring tank is internally provided with a stirrer for adjusting the quality of the inlet water.
Optionally, the upper portion of overflow tank is equipped with overflow tank delivery port, and the bottom of side is equipped with overflow tank water inlet, and the bottom surface is equipped with the second and arranges the cinder notch.
Optionally, the spiral shell machine is connected with the first slag discharging port and the second slag discharging port through parallel pipelines respectively, solid pollutants intercepted by the water screen and obtained by sedimentation of the overflow tank are discharged into the spiral shell machine, filter pressing treatment is carried out, and professional treatment is carried out on the obtained solid waste.
Optionally, the upper portion of anaerobic jar is equipped with anaerobic jar water inlet and anaerobic jar delivery port, and the bottom is equipped with first reflux mouth, and first reflux mouth is connected the one end of back flow.
Optionally, the overflow pipe is eta-shaped, and an inlet of the overflow pipe extends into the overflow tank through a water outlet of the overflow tank and is arranged at the middle upper part of the overflow tank; the outlet of the overflow pipe extends into the anaerobic tank through the water inlet of the anaerobic tank and is arranged at the bottom of the anaerobic tank;
the inlet of the overflow pipe is connected with the one-way valve through the quick connector, and the outlet of the overflow pipe is connected with the water inlet of the valve plate through the flow regulating valve.
Optionally, the valve plate is in an upward convex umbrella-shaped structure, a water inlet of the valve plate is arranged at the top of the center of the valve plate, the interior of the valve plate is hollow, and a plurality of valve openings are uniformly arranged on the bottom surface of the valve plate.
Optionally, an aerobic tank water inlet and an aerobic tank water outlet are arranged at the upper part of the aerobic tank, the aerobic tank water inlet and the aerobic tank water outlet are positioned on two opposite side walls of the aerobic tank, the anaerobic tank water outlet is connected with the aerobic tank water inlet, and the aerobic tank water outlet is connected with a return pipe and a final sedimentation tank in parallel;
the top of the aerobic tank is provided with a pressure regulating pipe, a liquid level meter and an oxygen dissolving instrument, and sensing probes of the liquid level meter and the oxygen dissolving instrument extend below the liquid level of the aerobic tank; the bottom of the aerobic tank is provided with an aeration device, the pressure regulating pipe is in an inverted L shape, the tail end of the pressure regulating pipe is provided with a respiration control valve, and the pressure setting is regulated according to the pressure condition requirement in the aerobic tank;
the liquid level meter, the dissolved oxygen meter, the respiration control valve and the aeration device are all in communication connection with the PLC controller, so that the linkage control of the components is realized.
Optionally, self-heating devices are arranged in the anaerobic tank and the aerobic tank, the self-heating devices comprise a plurality of support rods which are horizontally arranged and a plurality of detachable self-heating balls on each support rod, and the support rods are uniformly arranged in the anaerobic tank and the aerobic tank;
the support rods and the self-heating balls are hollow, and the support rods penetrate through the self-heating balls, so that the support rods are communicated with the inner spaces of the corresponding self-heating balls;
the self-heating ball is filled with quicklime, and the quantity of water introduced into the supporting rod is not easy to be excessively large due to the fact that the heating value of the quicklime is large, so that the supporting rod can be filled with water at one end and water at the other end, and water can be filled at both ends, and the self-heating ball on both sides can heat at the same time.
One end or two ends of the supporting rod are connected with a water source, quicklime reacts with water to generate slaked lime, and heat is released, so that the water temperature in the anaerobic tank and the aerobic tank is increased, and the loading amount of the quicklime and the number of the self-heating balls are flexibly adjusted according to the air temperature and the sewage treatment amount in the alpine region. After the quicklime in the self-heating ball is reacted, the anaerobic tank or the aerobic tank can be emptied, and the self-heating ball is disassembled for replacement. The self-heating ball can be in a buckle type closing mode, and sealing strips are arranged at the opening and closing seams to prevent sewage in the anaerobic tank and the aerobic tank from entering the self-heating ball.
Further optionally, the outer portion of the self-heating ball is arranged on the heat insulation layer, the heat release of the self-heating ball is prevented from being too large, the heat insulation layer can be a detachable empty ball shell sleeved outside the self-heating ball, the inner portion is air, which is equivalent to wrapping an air layer outside the self-heating ball, a large amount of heat transfer is blocked, and the size of the empty ball shell is changed according to the heat required by the anaerobic tank and the aerobic tank.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the impact-resistant high and cold area domestic sewage treatment system;
FIG. 2 is a bottom view of the port plate;
FIG. 3 is a schematic view of the structure of the self-heating device.
In the attached drawings, a 1-water sieve, a 2-stirring tank, a 3-overflow tank, a 4-spiral shell stacking machine, a 5-anaerobic tank, a 6-aerobic tank, a 7-overflow pipe, an 8-respiration control valve, a 9-aeration device, a 10-return pipe, an 11-valve plate, a 12-vibration exciter, a 13-water inlet of the valve plate, a 14-valve plate, a 15-final settling tank, a 16-aeration fan, a 17-liquid level meter, an 18-oxygen dissolving device, a 19-return pump, a 20-water producing pipe, a 21-reclaimed water recycling pipe, a 22-reclaimed water control pump, a 23-bypass pipe, a 24-guide plate, a 25-support rod, a 26-self-heating ball and a 27-pressure regulating pipe.
Detailed Description
The embodiment provides an impact-resistant domestic sewage treatment system in alpine regions, which is shown in fig. 1-2 and comprises a water screen 1, a stirring tank 2, an overflow tank 3, a biochemical treatment unit and a final sedimentation tank 15 which are sequentially connected, wherein the water screen 1 and the overflow tank 3 are also connected with a spiral shell stacking machine 4 in parallel and are used for discharging solids in the water screen 1 and the overflow tank 3 into the spiral shell stacking machine 4 for treatment;
the biochemical treatment unit comprises an anaerobic tank 5 and an aerobic tank 6 which are sequentially connected, the overflow tank 3 is connected with the anaerobic tank 5 through an overflow pipe 7, and the aerobic tank 6 is provided with a respiration control valve 8 and an aeration device 9 for adjusting the water flow and the pressure of the aerobic tank 6; the water outlet pipe of the aerobic tank 6 is connected with one end of a return pipe 10 in parallel, and the other end of the return pipe 10 is connected with the anaerobic tank 5;
the outlet of the overflow pipe 7 is positioned at the bottom of the anaerobic tank 5, and is provided with a valve plate 11 for uniformly distributing the inlet water of the anaerobic tank 5.
Optionally, the water screen 1 is funnel-shaped, the upper portion is equipped with the filter screen, and the side is equipped with vibration exciter 12, and vibration exciter 12 adopts intermittent type formula frequency conversion control, drives water screen 1 mechanical vibration, filters the filtering after the upper portion large-diameter solid vibration of the domestic sewage intaking, and the vibration increases the water mobility simultaneously, prevents to freeze, blocks up sewage treatment circulation passageway.
Further optionally, a first slag discharging port is arranged on the side wall of the water screen 1, and the first slag discharging port is located above the filter screen and is used for discharging solid pollutants intercepted by the water screen 1 out of the water screen 1.
Optionally, the bottom outlet of the water screen 1 is connected with the water inlet of the stirring tank 2, the water outlet of the stirring tank 2 is connected with the water inlet of the overflow tank 3, and the water inlet of the stirring tank 2 and the water outlet of the stirring tank 2 are respectively arranged at the top and the bottom of the stirring tank 2; the stirring tank 2 is internally provided with a stirrer for adjusting the quality of the inlet water.
Optionally, the upper portion of overflow tank 3 is equipped with overflow tank 3 delivery port, and the bottom of side is equipped with overflow tank 3 water inlet, and the bottom surface is equipped with the second and arranges the cinder notch. The effluent of the stirring tank 2 is input into an overflow tank 3, the sewage still contains smaller solid pollutants, natural sedimentation is carried out in the overflow tank 3, the solid pollutants are settled to the bottom of the overflow tank 3 and discharged from a second slag discharging port, clear supernatant is obtained at the upper part of the overflow tank 3, and the supernatant can be input into a subsequent anaerobic tank 5 for biochemical treatment.
Optionally, the spiral shell stacking machine 4 is connected with the first slag discharging port and the second slag discharging port through parallel pipelines respectively, solid pollutants intercepted by the water screen 1 and settled by the overflow tank 3 are discharged into the spiral shell stacking machine 4, filter pressing treatment is carried out, and professional treatment is carried out on the obtained solid wastes.
Optionally, the upper portion of anaerobic jar 5 is equipped with anaerobic jar 5 water inlet and anaerobic jar 5 delivery port, and the bottom is equipped with first reflux mouth, and anaerobic jar 5 water inlet and anaerobic jar 5 delivery port are located on two opposite lateral walls of anaerobic jar 5, and first reflux mouth is connected the one end of back flow 10.
Optionally, the overflow pipe 7 is eta-shaped, and an inlet of the overflow pipe 7 extends into the overflow tank 3 through a water outlet of the overflow tank 3 and is arranged at the middle upper part of the overflow tank 3; the outlet of the overflow pipe 7 extends into the anaerobic tank 5 through the water inlet of the anaerobic tank 5 and is arranged at the bottom of the anaerobic tank 5;
the inlet of the overflow pipe 7 is connected with a one-way valve through a quick connector, and the outlet of the overflow pipe 7 is connected with the water inlet 13 of the valve plate 11 through a flow regulating valve.
Optionally, the valve plate 11 is in an umbrella-shaped structure protruding upwards, the top of the center of the valve plate 11 is provided with a water inlet 13 of the valve plate, the interior of the valve plate 11 is hollow, and the bottom surface of the valve plate 11 is uniformly provided with a plurality of valve openings 14; the pore diameters of all the distributing openings 14 are the same, and are preferably 5-20% of the pore diameters of the water inlets 13 of the distributing plates.
Optionally, the center of the lower surface of the valve plate 11 is fixedly connected with a rotating shaft, the rotating shaft is connected with a driving motor for driving the valve plate 11 to rotate, the driving motor is arranged at the bottom of the anaerobic tank 5 or outside the anaerobic tank 5, and the outlet of the overflow pipe 7 and the water inlet 13 of the valve plate are provided with rotary sealing devices, so that when the valve plate 11 rotates, the overflow pipe 7 is not moved, and the water inlet 13 of the valve plate is watertight.
The sewage with clarified middle upper part in the overflow tank 3 is input into the anaerobic tank 5 through the overflow pipe 7, and the one-way valve prevents the water in the anaerobic tank 5 from returning to the overflow tank 3. The flow distribution plate 11 evenly distributes sewage to be treated entering the anaerobic tank 5 into the anaerobic tank 5, and controls the flow in the overflow pipe 7 through the flow regulating valve, so that the pressure linkage control of water flow flowing through the flow distribution plate 11 is formed, the rotation of the flow distribution plate 11 is matched, the inflow water flow forms a scattering flow shape, the inflow water distribution of the anaerobic tank 5 can be combined with the change of the volume of the anaerobic tank 5 according to the environment temperature condition and the water flow fluctuation condition, the disturbance of the water flow in the anaerobic tank 5 is regulated in a targeted manner, the temperature and the pressure are regulated and controlled in a linkage manner by the volume change amount, the impact load for coping with the flow change is realized, the mixing uniformity degree of the inflow water and anaerobic bacteria is improved, and the freezing resistance and the flow fluctuation impact load performance under the cold low temperature condition are improved.
Optionally, an aerobic tank water inlet and an aerobic tank water outlet are arranged at the upper part of the aerobic tank 6, the aerobic tank water inlet and the aerobic tank water outlet are positioned on two opposite side walls of the aerobic tank 6, the anaerobic tank 5 water outlet is connected with the aerobic tank water inlet, and the aerobic tank water outlet is connected with a return pipe 10 and a final sedimentation tank 15 in parallel;
the top of the aerobic tank 6 is provided with a pressure regulating pipe 27, a liquid level meter 17 and an oxygen dissolving meter 18, and sensing probes of the liquid level meter 17 and the oxygen dissolving meter 18 extend below the liquid level of the aerobic tank 6; the bottom of the aerobic tank 6 is provided with an aeration device 9, the pressure regulating pipe 27 is in an inverted L shape, the tail end of the pressure regulating pipe is provided with a respiration control valve 8, and the pressure setting is regulated according to the pressure condition requirement in the aerobic tank 6;
the liquid level meter 17, the dissolved oxygen meter 18, the respiration control valve 8 and the aeration device 9 are all in communication connection with the PLC controller, so that the linkage control of the components is realized.
Optionally, the aeration device 9 comprises a microporous aeration pipe and an aeration fan 16 outside the aerobic tank 6, and the aeration fan 16 is connected with the microporous aeration pipe; the return pipe 10 is provided with a return pump 19.
In the aerobic tank 6, the change of the liquid level volume of the aerobic tank 6 is monitored by the liquid level meter 17 and is controlled in a linkage way with the respiration control valve 8 and the aeration fan at the top, and the technical effects of comprehensively regulating the pressure, the volume, the water flow and the change of dissolved oxygen of the aerobic tank 6 are achieved through the linkage control of the respiration control valve 8, the dissolved oxygen meter 18, the aeration fan and the liquid level meter 17.
When the water level in the aerobic tank is at a constant water level under normal conditions, the space of the cavity at the upper part of the water surface of the sealed aerobic tank is a gas space, and the space is a constant volume space during normal operation. For example, by combining the aeration condition to perform pressure regulation, the regulation of dissolved oxygen can be realized, when the dissolved oxygen is lower than a preset value, under the condition that the volume of a gas space is unchanged, the pressure setting of the breathing control valve 8 is regulated by increasing the aeration quantity, so that the pressure in the aerobic tank can be increased, the effects of improving and regulating the temperature in the aerobic tank 6 and improving the low temperature resistance and freezing resistance of the water body in the aerobic tank 6 are achieved, the influence of low temperature and temperature difference on sewage treatment is reduced, and meanwhile, the dissolved oxygen is improved in a linkage way. Particularly, the method aims at the problem of large fluctuation of water quality of water flow caused by the characteristics of intermittent discharge and treatment of domestic sewage of villages and towns in alpine regions, and has remarkable treatment effect and applicability.
Further optionally, a plurality of guide plates 24 are arranged in the aerobic tank 6, the guide plates are vertically arranged and are perpendicular to the water inlet of the aerobic tank, the height of each guide plate is slightly lower than that of the water inlet of the aerobic tank and that of the water outlet of the aerobic tank, and two sides of each guide plate are fixedly connected with the side wall of the aerobic tank, so that water entering the aerobic tank flows up to the top of each guide plate on the upstream side and then overflows to the downstream side of each guide plate, and overflow water fall flow is formed.
Preferably, the baffle 24 is uniformly provided with a plurality of through holes, so that the inflow water can flow through the baffle through the through holes and is matched with the overflow drop flow, the fluidity of the water body is further enhanced, and the low-temperature freezing resistance and impact resistance are improved.
Optionally, the water outlet of the final sedimentation tank 15 and the co-production water pipe 20 and the reclaimed water recycling pipe 21 can split and reflux the treated reclaimed water, the reclaimed water recycling pipe 21 is connected with the water screen 1 through the reclaimed water control pump 22, thereby realizing the recycling of sewage treatment, reducing the consumption of new water resources, and simultaneously playing a role in removing slag for the water screen 1, preventing the water screen 1 from being blocked and preventing the water screen 1 from entering water at a low Wen Jiedong;
the bottom outlet of the final sedimentation tank 15 is connected with the return pipe 10 through a bypass pipe 23, and a small amount of aerobic sludge deposited at the bottom of the final sedimentation tank 15 and part of water body are returned to the anaerobic tank 5, so that the fluidity of the water body in the anaerobic tank is increased, and the water body is prevented from being fixed and frozen.
Optionally, as shown in fig. 3, the anaerobic tank 5 and the aerobic tank 6 are internally provided with self-heating devices, the self-heating devices comprise a plurality of horizontally placed support rods 25 and a plurality of detachable self-heating balls 26 on each support rod 25, and the support rods 25 are uniformly arranged in the anaerobic tank and the aerobic tank;
the supporting rods 25 and the self-heating balls 26 are hollow, and the supporting rods 25 penetrate through the self-heating balls 26, so that the supporting rods 25 are communicated with the inner spaces of the corresponding self-heating balls 26;
the self-heating balls 26 are filled with quicklime, and the amount of water introduced into the support rods 25 is not easy to be excessively large because the quicklime has large heating value, so that the support rods 25 can be filled with water at one end and water at the other end, or can be filled with water at both ends, and the self-heating balls 26 at both sides can heat at the same time.
One end or two ends of the supporting rod 25 are connected with a water source, quicklime reacts with water to generate slaked lime, and heat is released, so that the water temperature in the anaerobic tank and the aerobic tank is increased, and the loading amount of the quicklime and the number of the self-heating balls 26 are flexibly adjusted according to the air temperature and the sewage treatment amount in the alpine region. After the quicklime in the self-heating ball 26 is reacted, the anaerobic tank or the aerobic tank can be emptied, and the self-heating ball 26 is disassembled for replacement. The self-heating ball 26 can be closed in a snap-in mode, and sealing strips are arranged at the opening and closing seams to prevent sewage in the anaerobic tank and the aerobic tank from entering the self-heating ball 26.
Further alternatively, the outer portion of the self-heating ball 26 is provided with an insulating layer, so that the heat release of the self-heating ball 26 is prevented from being too large, the insulating layer can be a detachable hollow ball shell sleeved outside the self-heating ball 26, and the inner portion is air, which is equivalent to wrapping an air layer outside the self-heating ball 26, so that a large amount of heat transfer is blocked, and the size of the hollow ball shell is changed according to the heat required by the anaerobic tank and the aerobic tank.
Claims (7)
1. The impact-resistant high and cold area domestic sewage treatment system is characterized by comprising a water screen, a stirring tank, an overflow tank, a biochemical treatment unit and a final sedimentation tank which are connected in sequence, wherein the water screen and the overflow tank are also connected with a spiral shell stacking machine in parallel and are used for discharging solids in the water screen and the overflow tank into the spiral shell stacking machine for treatment;
the biochemical treatment unit comprises an anaerobic tank and an aerobic tank which are sequentially connected, the overflow tank is connected with the anaerobic tank through an overflow pipe, and the aerobic tank is provided with a respiration control valve and an aeration device and is used for adjusting the water flow and pressure of the aerobic tank; the water outlet pipe of the aerobic tank is connected with one end of a return pipe in parallel, and the other end of the return pipe is connected with the anaerobic tank;
the outlet of the overflow pipe is positioned at the bottom of the anaerobic tank and is provided with a valve plate for uniformly distributing the inlet water of the anaerobic tank;
the overflow pipe is eta-shaped, and an inlet of the overflow pipe extends into the overflow tank through a water outlet of the overflow tank and is arranged at the middle upper part of the overflow tank; the outlet of the overflow pipe extends into the anaerobic tank through the water inlet of the anaerobic tank and is arranged at the bottom of the anaerobic tank; the outlet of the overflow pipe is connected with the water inlet of the valve plate;
the valve plate is of an upward-protruding umbrella-shaped structure, the top of the center of the valve plate is provided with a water inlet of the valve plate, the interior of the valve plate is hollow, and the bottom surface of the valve plate is uniformly provided with a plurality of valve openings;
the upper part of the aerobic tank is provided with an aerobic tank water inlet and an aerobic tank water outlet, the anaerobic tank water outlet is connected with the aerobic tank water inlet, and the aerobic tank water outlet is connected with a return pipe and a final sedimentation tank in parallel;
the top of the aerobic tank is provided with a pressure regulating pipe, a liquid level meter and an oxygen dissolving instrument, and sensing probes of the liquid level meter and the oxygen dissolving instrument extend below the liquid level of the aerobic tank; the bottom of the aerobic tank is provided with an aeration device, the pressure regulating pipe is in an inverted L shape, the tail end of the pressure regulating pipe is provided with a respiration control valve, and the pressure setting is regulated according to the pressure condition requirement in the aerobic tank; the liquid level meter, the dissolved oxygen meter, the respiration control valve and the aeration device are all in communication connection with the PLC;
the pressure regulation is carried out in combination with the aeration condition, the regulation of the dissolved oxygen is realized at the same time, when the dissolved oxygen is lower than a preset value, under the condition that the volume of a gas space is unchanged, the pressure setting of a respiration control valve is regulated by increasing the aeration quantity, the pressure in an aerobic tank is increased, the effects of increasing and regulating the temperature in the aerobic tank and improving the low temperature and freezing resistance of water in the aerobic tank are achieved, the influence of low temperature and temperature difference on sewage treatment is reduced, and meanwhile, the dissolved oxygen is increased in a linkage way;
the aerobic tank is internally provided with a plurality of guide plates which are vertically arranged and are perpendicular to the water inlet of the aerobic tank, the height of each guide plate is slightly lower than that of the water inlet of the aerobic tank and the water outlet of the aerobic tank, and the two sides of each guide plate are fixedly connected with the side wall of the aerobic tank, so that water entering the aerobic tank flows up to the top of each guide plate at the upstream side and then overflows to the downstream side of each guide plate to form overflow water fall flow.
2. The domestic sewage treatment system in the alpine region according to claim 1, wherein the water screen is funnel-shaped, a filter screen is arranged at the upper part, a vibration exciter is arranged at the side surface, and the vibration exciter adopts intermittent frequency conversion control to drive the water screen to mechanically vibrate;
the side wall of the water screen is provided with a first slag discharging port, and the first slag discharging port is positioned above the filter screen and is used for discharging solid pollutants intercepted by the water screen out of the water screen.
3. The domestic sewage treatment system in the alpine region according to claim 2, wherein the bottom outlet of the water screen is connected with the water inlet of the stirring tank, the water outlet of the stirring tank is connected with the water inlet of the overflow tank, and the water inlet of the stirring tank and the water outlet of the stirring tank are respectively arranged at the top and the bottom of the stirring tank; the stirring tank is internally provided with a stirrer for adjusting the quality of the inlet water.
4. The domestic sewage treatment system in alpine regions according to claim 3, wherein the overflow tank is provided with an overflow tank water outlet at the upper part, an overflow tank water inlet at the bottom of the side surface and a second slag discharge port at the bottom surface;
the spiral shell machine is connected with the first slag discharging port and the second slag discharging port through parallel pipelines respectively.
5. The system of claim 4, wherein the anaerobic tank has an anaerobic tank water inlet and an anaerobic tank water outlet at the upper part, and a first reflux port at the bottom, and the first reflux port is connected with one end of the reflux pipe.
6. The domestic sewage treatment system in alpine regions according to claim 1, wherein the anaerobic tank and the aerobic tank are internally provided with self-heating devices, the self-heating devices comprise a plurality of horizontally placed supporting rods and a plurality of detachable self-heating balls on each supporting rod, and the supporting rods are uniformly arranged in the anaerobic tank and the aerobic tank;
the support rods and the self-heating balls are hollow, and the support rods penetrate through the self-heating balls, so that the support rods are communicated with the inner spaces of the corresponding self-heating balls;
quick lime is filled in the self-heating ball, and water is fed into one end of the supporting rod, water is discharged from the other end of the supporting rod, or water is fed into both ends of the supporting rod.
7. The system according to claim 6, wherein the outer part of the self-heating ball is arranged on a heat-insulating layer, the heat release of the self-heating ball is prevented from being excessive, the heat-insulating layer is a detachable hollow ball shell sleeved outside the self-heating ball, and the inner part is air.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211011275.6A CN115215440B (en) | 2022-08-23 | 2022-08-23 | Impact-resistant high-cold area domestic sewage treatment system |
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| CN202211011275.6A CN115215440B (en) | 2022-08-23 | 2022-08-23 | Impact-resistant high-cold area domestic sewage treatment system |
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| CN115215440B true CN115215440B (en) | 2023-09-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2205484A1 (en) * | 1972-11-03 | 1974-05-31 | Matthey Doret Daniel | Biological purificn station for polluted water - using single bacterial strain for both anaerobic and aerobic phases |
| US3897334A (en) * | 1970-08-17 | 1975-07-29 | Atara Corp | Single basin aerated sewage lagoon with spring time intensified aeration |
| CN203807303U (en) * | 2014-04-10 | 2014-09-03 | 冯红梅 | Wastewater treatment system |
| CN205874156U (en) * | 2016-07-30 | 2017-01-11 | 重庆中标环保集团有限公司 | Integration effluent treatment plant |
| CN212609820U (en) * | 2020-06-20 | 2021-02-26 | 浙江聚美环境科技有限公司 | Novel micro-power domestic sewage treatment device |
-
2022
- 2022-08-23 CN CN202211011275.6A patent/CN115215440B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3897334A (en) * | 1970-08-17 | 1975-07-29 | Atara Corp | Single basin aerated sewage lagoon with spring time intensified aeration |
| FR2205484A1 (en) * | 1972-11-03 | 1974-05-31 | Matthey Doret Daniel | Biological purificn station for polluted water - using single bacterial strain for both anaerobic and aerobic phases |
| CN203807303U (en) * | 2014-04-10 | 2014-09-03 | 冯红梅 | Wastewater treatment system |
| CN205874156U (en) * | 2016-07-30 | 2017-01-11 | 重庆中标环保集团有限公司 | Integration effluent treatment plant |
| CN212609820U (en) * | 2020-06-20 | 2021-02-26 | 浙江聚美环境科技有限公司 | Novel micro-power domestic sewage treatment device |
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