CN115215440A - Impact-resistant severe cold area domestic sewage treatment system - Google Patents
Impact-resistant severe cold area domestic sewage treatment system Download PDFInfo
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- CN115215440A CN115215440A CN202211011275.6A CN202211011275A CN115215440A CN 115215440 A CN115215440 A CN 115215440A CN 202211011275 A CN202211011275 A CN 202211011275A CN 115215440 A CN115215440 A CN 115215440A
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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
Abstract
The invention relates to an impact-resistant domestic sewage treatment system in a severe cold region, which comprises a water sieve, an overflow tank, a biochemical treatment unit and a final sedimentation tank which are sequentially connected, wherein the water sieve and the overflow tank are also connected in parallel with a screw stacking machine and are used for discharging solids in the water sieve and the overflow tank into the screw stacking machine for treatment; the biochemical treatment unit comprises an anaerobic tank and an aerobic tank which are connected in sequence, the overflow tank is connected with the anaerobic tank through an overflow pipe, and the aerobic tank is provided with a breathing control valve and an aeration device and is used for adjusting the water flow and the 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 the overflow pipe is provided with a flow distribution disc 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 a severe cold region.
Background
In the domestic sewage treatment process, pretreatment processes such as grating and flocculation are often adopted in combination with a method of activated sludge biochemical treatment to filter, degrade and remove pollutants in the sewage, so that the purification and standard treatment of the sewage are realized. However, in the existing domestic sewage treatment method, due to the influence factors that the environmental temperature and the water temperature are too low in the high and cold areas in the north, namely the low-temperature freezing in the high and cold areas, the sewage is easy to freeze and difficult to flow, and the conditions of freezing, blocking and damage of equipment such as sewage treatment pipelines and pump valves can be caused.
During sewage treatment, the temperature condition can also seriously influence strains and microbial activity in the activated sludge biochemical treatment process, the microbial biodegradation treatment pollutants are difficult to exert effect, the severe cold area has the special conditions of large day and night temperature difference and large indoor and outdoor temperature difference under the condition of low temperature, the larger temperature difference is unfavorable for the survival and growth of microorganisms and related strains of a sewage biochemical system, so that the sewage treatment efficiency and effect are greatly reduced in the severe cold area, impact and serious influence are brought to the stable standard-reaching operation of the sewage treatment system, the sewage is difficult to be stably treated and discharged after reaching the standard, and the ecological environment is damaged.
Disclosure of Invention
Aiming at the problems, the invention provides an impact-resistant alpine region domestic sewage treatment system which is suitable for resisting temperature impact load with large day-night temperature difference of villages and towns in alpine regions and resisting flow impact load with large short-time fluctuation of water quantity, and is matched with automatic anti-freezing, slag removal and anti-blocking designs, automatic water flow and pressure adjustment, full and uniform water flow distribution and backflow control, so that multiple multi-stage adjustment of domestic sewage treatment of the villages and the towns in the alpine regions is realized, multi-stage water distribution is combined with in-situ backflow and reclaimed water recycling of the system, and the impact load such as various low temperatures, flow fluctuation and the like is stronger in adaptability.
The impact-resistant alpine region domestic sewage treatment system comprises a water sieve, a stirring tank, an overflow tank, a biochemical treatment unit and a final sedimentation tank which are sequentially connected, wherein the water sieve and the overflow tank are also connected in parallel with a screw stacking machine and are used for discharging solids in the water sieve and the overflow tank into the screw stacking machine for treatment;
the biochemical treatment unit comprises an anaerobic tank and an aerobic tank which are connected in sequence, the overflow tank is connected with the anaerobic tank through an overflow pipe, and the aerobic tank is provided with a breathing control valve and an aeration device and is used for adjusting the water flow and the pressure of the aerobic tank; a 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 the overflow pipe is provided with a flow distribution plate for uniformly distributing the inlet water of the anaerobic tank.
Optionally, the water sieve is funnel-shaped, the upper portion of the water sieve is provided with the filter sieve, the side face of the water sieve is provided with the vibration exciter, and the vibration exciter is controlled by intermittent frequency conversion to drive the water sieve to vibrate mechanically.
Further optionally, the lateral wall of water sieve is equipped with first row of cinder notch, and first row of cinder notch is located the top of filter sieve for solid pollutant discharge water sieve with the water sieve interception.
Optionally, an outlet at the bottom of the water screen is connected with a water inlet of the stirring tank, a water outlet of the stirring tank is connected with a 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 regulating the quality of the inlet water.
Optionally, the upper portion of the overflow tank is provided with an overflow tank water outlet, the bottom of the side face is provided with an overflow tank water inlet, and the bottom face is provided with a second slag discharge port.
Optionally, the screw stacking machine is respectively connected with the first slag discharge port and the second slag discharge port through parallel pipelines, solid pollutants intercepted by the water screen and settled by the overflow tank are discharged into the screw stacking machine, filter pressing treatment is carried out, and professional treatment is carried out on the obtained solid waste.
Optionally, the upper portion of the anaerobic tank is provided with an anaerobic tank water inlet and an anaerobic tank water outlet, the bottom of the anaerobic tank is provided with a first return port, and the first return port is connected with one end of the return pipe.
Optionally, the overflow pipe is in an η shape, 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; an outlet of the overflow pipe extends into the anaerobic tank through a 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-plugging 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 of an upward-protruding umbrella-shaped structure, a water inlet of the valve plate is formed in the top of the center of the valve plate, the interior of the valve plate is hollow, and a plurality of valve ports are uniformly formed in the bottom surface of the valve plate.
Optionally, the upper part of the aerobic tank is provided with an aerobic tank water inlet and an aerobic tank water outlet, 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 in parallel with a return pipe and a final sedimentation tank;
the top of the aerobic tank is provided with a pressure regulating pipe, a liquid level meter and an oxygen dissolving instrument, and the inductive 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 inverted L-shaped, the tail end of the pressure regulating pipe is provided with a breathing 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 breathing control valve and the aeration device are all in communication connection with the PLC, and linkage control of all the parts is achieved.
Optionally, self-heating devices are arranged in the anaerobic tank and the aerobic tank, each self-heating device comprises a plurality of horizontally arranged support rods 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 supporting rod and the self-heating balls are hollow, and the supporting rod penetrates through the self-heating balls, so that the supporting rod is communicated with the inner spaces of the self-heating balls;
quick lime is filled in the self-heating ball, because quick lime gives out heat greatly, the water yield of letting in the bracing piece is difficult too big, so the bracing piece can intake water in one end, the other end goes out water, also can both ends all intake for the self-heating ball on both sides generates heat simultaneously.
One end or both ends of bracing piece are connected the water source, and quick lime reacts with water and generate hydrated lime to heat up along with, make the temperature in anaerobic jar and the aerobic jar promote, quick lime's charge and the quantity from the hot ball according to the temperature in alpine region and sewage treatment volume and nimble adjustment. After the reaction of the quicklime in the self-heating ball is finished, the anaerobic tank or the aerobic tank can be emptied, and the self-heating ball is disassembled for replacement. The self-heating ball can adopt a buckle type closing mode, and a sealing strip is arranged at the opening and closing seam to prevent sewage in the anaerobic tank and the aerobic tank from entering the self-heating ball.
Further optionally, establish at the heat preservation from the outside of hot ball, prevent that self-heating ball heat release is too big, the heat preservation can be from the empty spherical shell of the detachable that hot ball outside cover was established, and inside is the air, is equivalent to in the outside parcel air bed of self-heating ball, and the size of empty spherical shell is changed to the transmission of a large amount of heat of separation according to the required heat of anaerobic jar and aerobic jar how much.
Drawings
FIG. 1 is a schematic view of the overall structure of the impact-resistant domestic sewage treatment system in the alpine region;
FIG. 2 is a bottom view of the port plate;
FIG. 3 is a schematic diagram of the self-heating apparatus.
In the attached figure, 1-water sieve, 2-stirring tank, 3-overflow tank, 4-stacked screw machine, 5-anaerobic tank, 6-aerobic tank, 7-overflow pipe, 8-breathing control valve, 9-aeration device, 10-reflux pipe, 11-valve plate, 12-vibration exciter, 13-water inlet of valve plate, 14-valve port, 15-final settling tank, 16-aeration fan, 17-liquid level meter, 18-dissolved oxygen instrument, 19-reflux pump, 20-water production pipe, 21-reclaimed water recycling pipe, 22-reclaimed water control pump, 23-bypass pipe, 24-guide plate, 25-support rod, 26-self-heating ball and 27-pressure regulating pipe.
Detailed Description
The embodiment provides an impact-resistant domestic sewage treatment system in a severe cold region, which comprises a water sieve 1, a stirring tank 2, an overflow tank 3, a biochemical treatment unit and a final sedimentation tank 15 which are sequentially connected as shown in fig. 1-2, wherein the water sieve 1 and the overflow tank 3 are also connected in parallel with a screw lamination machine 4 and used for discharging solids in the water sieve 1 and the overflow tank 3 into the screw lamination machine 4 for treatment;
the biochemical treatment unit comprises an anaerobic tank 5 and an aerobic tank 6 which are connected in sequence, 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 breathing control valve 8 and an aeration device 9 and is used for adjusting the water flow and the pressure of the aerobic tank 6; a 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 port plate 11 for uniformly distributing the inlet water of the anaerobic tank 5.
Optionally, water sieve 1 is the infundibulate, and upper portion is equipped with the filter sieve, and the side is equipped with vibration exciter 12, and vibration exciter 12 adopts intermittent type formula frequency conversion control, drives water sieve 1 mechanical vibration, filters the filtering behind the upper portion large-particle size solid vibration that domestic sewage intake, vibrates simultaneously and increases water mobility, prevents to freeze, blocks up sewage treatment circulation passageway.
Further optionally, the side wall of the water sieve 1 is provided with a first slag discharge port, and the first slag discharge port is located above the filter sieve and used for discharging solid pollutants intercepted by the water sieve 1 out of the water sieve 1.
Optionally, the bottom outlet of the water sieve 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; a stirrer is arranged in the stirring tank 2 and used for adjusting the water quality of the inlet water.
Optionally, the upper portion of the overflow tank 3 is provided with a water outlet of the overflow tank 3, the bottom of the side face is provided with a water inlet of the overflow tank 3, and the bottom face is provided with a second slag discharge hole. The water output input overflow tank 3 of stirring pond 2 still contains less solid pollutant in the sewage, subsides naturally in overflow tank 3, and solid pollutant subsides to overflow tank 3 bottoms to by the discharge of second row cinder notch, overflow tank 3 upper portions obtain comparatively limpid supernatant, can input subsequent anaerobic jar 5 and carry out biochemical treatment.
Optionally, the spiral shell stacking machine 4 is connected with the first slag discharge port and the second slag discharge 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 obtained solid wastes.
Optionally, the upper portion of the anaerobic tank 5 is provided with a water inlet of the anaerobic tank 5 and a water outlet of the anaerobic tank 5, the bottom of the anaerobic tank is provided with a first backflow port, the water inlet of the anaerobic tank 5 and the water outlet of the anaerobic tank 5 are located on two opposite side walls of the anaerobic tank 5, and the first backflow port is connected with one end of the backflow pipe 10.
Optionally, the overflow pipe 7 is in an η shape, 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 the 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 control valve.
Optionally, the port plate 11 is an umbrella-shaped structure protruding upwards, a water inlet 13 of the port plate is arranged at the top of the center of the port plate 11, the inside of the port plate 11 is hollow, and a plurality of port holes 14 are uniformly arranged on the bottom surface of the port plate 11; the apertures of all the distributing ports 14 are the same, and are preferably 5-20% of the apertures of the water inlets 13 of the distributing plate.
Optionally, a rotating shaft is fixedly connected to the center of the lower surface of the valve plate 11, the rotating shaft is connected to 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 a rotary sealing device is arranged between an outlet of the overflow pipe 7 and the water inlet 13 of the valve plate, so that when the valve plate 11 rotates, the overflow pipe 7 is stationary, and the water inlet 13 of the valve plate does not leak water.
The sewage which is clarified at the middle upper part in the overflow tank 3 is input into the anaerobic tank 5 through an overflow pipe 7, and the one-way valve prevents the water body in the anaerobic tank 5 from returning to the overflow tank 3. The distribution plate 11 evenly distributes the 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 as to form pressure linkage control on the water flow passing through the distribution plate 11, and the rotation of the distribution plate 11 is matched, so that the water flow of the inlet water forms a scattering flow shape, and when the inlet water of the anaerobic tank 5 is distributed, the temperature and the pressure can be adjusted and controlled in a linkage manner through volume variable quantity according to the environmental temperature condition and the water flow fluctuation condition, the capacity change of the anaerobic tank 5 is combined, the disturbance of the water flow in the anaerobic tank 5 is specifically regulated, and the impact load of the volume variable quantity is improved, so that the impact load resistance of the corresponding flow change is improved, the mixing uniformity degree of the inlet water and anaerobic bacteria is improved, and the freezing resistance and the flow fluctuation impact load performance under the cold and low temperature conditions 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 water outlet of the anaerobic tank 5 is connected with the aerobic tank water inlet, and the aerobic tank water outlet is connected with the return pipe 10 and the 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 instrument 18, and the inductive probes of the liquid level meter 17 and the oxygen dissolving instrument 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 adjusting pipe 27 is of an inverted L shape, the tail end of the pressure adjusting pipe is provided with a breathing control valve 8, and the pressure setting is adjusted according to the pressure condition requirement in the aerobic tank 6;
the liquid level meter 17, the dissolved oxygen meter 18, the breathing control valve 8 and the aeration device 9 are all in communication connection with a PLC controller, and linkage control of all the parts is achieved.
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 invention, a liquid level meter 17 is used for monitoring the change of the liquid level volume of the aerobic tank 6, and the liquid level volume is in linkage control with a breathing control valve 8 and an aeration fan at the top, and the pressure, the volume, the water flow and the dissolved oxygen change of the aerobic tank 6 are comprehensively regulated through the linkage control of the breathing control valve 8, the dissolved oxygen instrument 18, the aeration fan and the liquid level meter 17.
When the water level in the aerobic tank is at the constant water level under normal conditions, the space of the sealed cavity at the upper part of the water surface of the aerobic tank is a gas space, and the space is a constant volume space during normal work. For example, combine the aeration condition to carry out pressure control, still can realize the regulation to dissolved oxygen simultaneously, when dissolved oxygen is less than the default, under the unchangeable condition of gas space's volume, through increase aeration rate, adjust the pressure setting of breathing control valve 8, can improve aerobic tank internal pressure, reach promotion and regulation to the interior temperature of aerobic tank 6 and improve the effect that the interior water of aerobic tank 6 is low temperature resistant anti-freezing, reduce the influence of low temperature and difference in temperature to sewage treatment, the linkage improves dissolved oxygen simultaneously. Especially aiming at the problem that the quality of water flow fluctuates greatly due to the characteristic of intermittent discharge and treatment of domestic sewage in villages and towns in alpine regions, the method has obvious treatment effect and applicability.
Further optionally, be equipped with a plurality of guide plate 24 in the aerobic tank 6, the guide plate is vertical setting, and perpendicular to aerobic tank water inlet, and the height of guide plate is slightly less than aerobic tank water inlet and aerobic tank delivery port, the lateral wall of the both sides fixed connection aerobic tank of guide plate for the intaking of aerobic tank rises to the guide plate top back at upstream side, overflows to the guide plate downstream side again, forms the overflow and falls the water flow.
Preferably, evenly set up a plurality of through-hole on the guide plate 24 for the water intaking can also flow through the guide plate through the through-hole, and flow mutually supporting with the overflow drop, further reinforcing water mobility improves low temperature freeze proof shock resistance.
Optionally, the water outlet of the final sedimentation tank 15 is connected with a water production pipe 20 and a reclaimed water reuse pipe 21 in parallel, so that treated reclaimed water can be divided and refluxed, the reclaimed water reuse pipe 21 is connected with the water screen 1 through a reclaimed water control pump 22, the resource utilization of sewage treatment is realized, the consumption of new water resources is reduced, and simultaneously, the effects of removing slag from the water screen 1, preventing the water screen 1 from being blocked and preventing the water screen 1 from being frozen at low temperature during water inlet can be achieved;
the bottom outlet of the final sedimentation tank 15 is connected with the return pipe 10 through a bypass pipe 23, a small amount of aerobic sludge and part of water deposited at the bottom of the final sedimentation tank 15 are returned to the anaerobic tank 5, the water body fluidity in the anaerobic tank is increased, and the water body is prevented from being fixed and frozen.
Optionally, as shown in fig. 3, self-heating devices are arranged in the anaerobic tank 5 and the aerobic tank 6, the self-heating devices include a plurality of horizontally arranged 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 inside the anaerobic tank and the aerobic tank;
the supporting rod 25 and the self-heating balls 26 are both hollow, and the supporting rod 25 penetrates through the self-heating balls 26, so that the supporting rod 25 is communicated with the inner spaces of the corresponding self-heating balls 26;
quick lime is filled in the self-heating balls 26, because the heating value of the quick lime is large, the water amount introduced into the support rods 25 is not easy to be too large, water can be fed into one end of each support rod 25, water can be discharged from the other end of each support rod 25, and water can be fed into both ends of each support rod, so that the self-heating balls 26 on the two sides can heat simultaneously.
One end or both ends of the support rod 25 are connected with a water source, and quicklime reacts with water to generate slaked lime and release heat along with the slaked lime, so that the water temperatures in the anaerobic tank and the aerobic tank are improved, and the filling amount of the quicklime and the number of the self-heating balls 26 are flexibly adjusted according to the air temperature in the alpine region and the sewage treatment amount. 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 can be disassembled for replacement. The self-heating ball 26 can adopt a buckle type closing mode, and a sealing strip is arranged at the opening and closing seam to prevent sewage in the anaerobic tank and the aerobic tank from entering the self-heating ball 26.
Further optionally, establish at the heat preservation from the outside of hot ball 26, prevent from hot ball 26 heat release too big, the heat preservation can be from the empty spherical shell of detachable that hot ball 26 outside cover was established, and inside is the air, is equivalent to wrapping up the air bed in the outside of hot ball 26, and the transmission of a large amount of heats of separation changes the size of empty spherical shell according to the required heat of anaerobic jar and aerobic jar.
Claims (9)
1. An impact-resistant domestic sewage treatment system in alpine regions is characterized by comprising a water screen, a stirring tank, an overflow tank, a biochemical treatment unit and a final sedimentation tank which are sequentially connected, wherein the water screen and the overflow tank are also connected in parallel with a screw stacking machine and used for discharging solids in the water screen and the overflow tank into the screw stacking machine for treatment;
the biochemical treatment unit comprises an anaerobic tank and an aerobic tank which are connected in sequence, the overflow tank is connected with the anaerobic tank through an overflow pipe, and the aerobic tank is provided with a breathing control valve and an aeration device and is used for adjusting the water flow and the pressure of the aerobic tank; a 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 the overflow pipe is provided with a flow distribution plate for uniformly distributing the inlet water of the anaerobic tank.
2. The alpine region domestic sewage treatment system according to claim 1, wherein the water screen is funnel-shaped, the upper portion is provided with a filter screen, the side surface is provided with a vibration exciter, and the vibration exciter adopts intermittent variable frequency control to drive the water screen to vibrate mechanically;
the lateral wall of water sieve is equipped with first row of cinder notch, and first row of cinder notch is located the top of filter sieve for solid pollutant discharge water sieve with the water sieve interception.
3. The alpine region domestic sewage treatment system according to claim 2, wherein the outlet at the bottom 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 regulating the quality of the inlet water.
4. The high and cold region domestic sewage treatment system of claim 3, wherein the upper part of the overflow tank is provided with an overflow tank water outlet, the bottom of the side surface is provided with an overflow tank water inlet, and the bottom surface is provided with a second slag discharge port;
the screw stacking machine is connected with the first slag discharge port and the second slag discharge port through parallel pipelines respectively.
5. The alpine region domestic sewage treatment system according to claim 4, wherein an anaerobic tank water inlet and an anaerobic tank water outlet are formed in the upper portion of the anaerobic tank, a first return port is formed in the bottom of the anaerobic tank, and the first return port is connected to one end of the return pipe.
6. The alpine region domestic sewage treatment system of claim 5, wherein the overflow pipe is η -shaped, and an inlet of the overflow pipe extends into the overflow tank through an outlet of the overflow tank and is arranged at a 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 port plate;
the flow distribution plate is of an umbrella-shaped structure protruding upwards, a water inlet of the flow distribution plate is formed in the top of the center of the flow distribution plate, the inside of the flow distribution plate is hollow, and a plurality of flow distribution ports are uniformly formed in the bottom surface of the flow distribution plate.
7. The sewage treatment system in alpine regions according to claim 6, wherein 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 the inductive 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 inverted L-shaped, the tail end of the pressure regulating pipe is provided with a breathing 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 breathing control valve and the aeration device are all in communication connection with the PLC.
8. The alpine region domestic sewage treatment system according to claim 1, wherein self-heating devices are arranged in the anaerobic tank and the aerobic tank, each self-heating device comprises a plurality of horizontally arranged support rods and a plurality of detachable self-heating balls on each support rod, and the support rods are uniformly arranged inside the anaerobic tank and the aerobic tank;
the supporting rod and the self-heating balls are hollow, and the supporting rod penetrates through the self-heating balls, so that the supporting rod is communicated with the inner spaces of the self-heating balls;
quicklime is filled in the self-heating ball, and water enters from one end of the supporting rod and exits from the other end of the supporting rod, or water enters from both ends of the supporting rod.
9. The alpine region domestic sewage treatment system according to claim 8, wherein the self-heating ball is externally provided with an insulation layer to prevent the self-heating ball from generating excessive heat, the insulation layer is a detachable hollow ball shell sleeved outside the self-heating ball, and the interior of the insulation layer is air.
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| 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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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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| Publication number | Publication date |
|---|---|
| CN115215440B (en) | 2023-09-26 |
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