CN107522351B - Unpowered miniature step sewage treatment plant - Google Patents
Unpowered miniature step sewage treatment plant Download PDFInfo
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- CN107522351B CN107522351B CN201710618518.5A CN201710618518A CN107522351B CN 107522351 B CN107522351 B CN 107522351B CN 201710618518 A CN201710618518 A CN 201710618518A CN 107522351 B CN107522351 B CN 107522351B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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Abstract
本发明涉及一种无动力微型梯级污水处理装置，斜板沉淀区污水进入口处设有兜式可收缩性滤网，下部设有消能污泥槽，通过溢流口处溢流弯连通厌氧停水区和厌氧过滤区，厌氧过滤区底部通过底部多孔固定板连通缺氧过滤区，缺氧过滤区上部通过溢流口处溢流弯连通污水复氧区，污水复氧区中装有充氧药剂自动投加部件，污水复氧区底部通过好氧过滤区底部固定多孔板连通好氧过滤区，好氧过滤区上部的活动多孔板上面设有活性炭过滤区和砾间渗水区；污水通过溢流的方式通过斜板沉淀区和缺氧过滤区中的溢流口分别进入厌氧停水区和污水复氧区，厌氧停水区和污水复氧区中的污水分别通过逆渗的方式进入缺氧过滤区和好氧过滤区，提高水利停留时间，加强污水处理效果。
The invention relates to an unpowered miniature cascade sewage treatment device. A pocket-type retractable filter screen is arranged at the inlet of the sewage in the sedimentation zone of the inclined plate, and an energy-dissipating sludge tank is arranged at the lower part, which is connected to the exhaustion through the overflow bend at the overflow outlet. The oxygen-stopping zone and the anaerobic filtration zone, the bottom of the anaerobic filtration zone is connected to the anoxic filtration zone through the bottom porous fixed plate, and the upper part of the anoxic filtration zone is connected to the sewage re-oxygenation zone through the overflow bend at the overflow port. Equipped with automatic dosing parts for oxygenating agents, the bottom of the sewage re-oxygenation zone is connected to the aerobic filtration zone through a fixed porous plate at the bottom of the aerobic filtration zone, and an activated carbon filtration zone and a water seepage zone between the gravels are arranged on the movable porous plate above the aerobic filtration zone. ; The sewage enters the anaerobic water stop area and the sewage reoxygenation area respectively through the overflow port in the inclined plate sedimentation area and the anoxic filtration area, and the sewage in the anaerobic water stop area and the sewage reoxygenation area respectively passes through The way of reverse osmosis enters the anoxic filtration zone and the aerobic filtration zone to increase the water retention time and enhance the effect of sewage treatment.
Description
Technical Field
The invention relates to a sewage treatment device, in particular to an unpowered micro-step sewage treatment device, and belongs to the technical field of unpowered sewage treatment.
Background
In China, the environment protection awareness of residents in rural areas or remote areas is relatively weak, and partial residents in the rural areas and the remote areas are too dispersed to establish a centralized sewage treatment system similar to a city, so that the water environment pollution of the rural areas is more serious than that of the city compared with the city in which sewage storage and treatment technologies are mature. The rural area of China generates about more than 80 hundred million tons of domestic sewage every year, most rural areas do not have sewage treatment systems and drainage channels, the domestic sewage is discharged randomly, and the domestic sewage basically enters natural water bodies. With the increasing strength of local economy, people also recognize that if the rural domestic sewage is not treated effectively, the rural economic development and infrastructure construction are influenced, and the living environment and the living quality of people are seriously influenced. Therefore, according to the characteristics of rural sewage discharge in China, a miniature sewage treatment device which is simple, convenient and low in cost and has treatment capacity capable of meeting the daily sewage discharge amount of a single family in a rural area is urgently needed, and the miniature sewage treatment device is used for relieving the water pollution problem caused by disordered sewage discharge in rural areas.
For example, Chinese patents show that devices or equipment such as a household sewage processor (91227568.5), a combined household sewage treatment storage tank (200420081749.5), a household sewage treatment tank (200420063720.4) and the like play a certain role in household sewage treatment, but different problems exist in that the ① needs additional energy sources such as a water pump, a disinfection lamp and the like, the cost of rural household sewage treatment is additionally increased, the ② device is complex, high in technical requirement and difficult to maintain, ③ occupies a large area, and the occupied space is obstructed, so that various inconveniences are brought to daily life, and therefore, a sewage treatment device which does not need additional power, is simple and convenient to operate, has low cost, is easy to manage and maintain and can effectively treat household sewage needs to be designed, and has important application value for relieving the water pollution condition of a rural river water area.
Disclosure of Invention
The invention aims to solve the problems of high operation cost and technical requirement, complex operation, difficult maintenance and the like of water body treatment equipment or process around water body pollution caused by random discharge of domestic sewage in rural areas or remote areas at present, and provides an unpowered micro-step sewage treatment device for relieving the water body pollution condition of river water areas around the rural areas.
In order to achieve the purpose, the technical scheme of the invention is as follows: the unpowered micro stepped sewage treatment device comprises a bag-type contractible filter screen, an inclined plate sedimentation area, an energy dissipation sludge tank, an anaerobic water stop area, an anaerobic filter area, an anoxic filter area, an automatic oxygenation agent adding component, a sewage reoxygenation area, an aerobic filter area, an active carbon filter area and an inter-gravel seepage area, wherein the bag-type contractible filter screen is arranged at a sewage inlet at the upper part of the inclined plate sedimentation area, the energy dissipation sludge tank is arranged at the lower part of the inclined plate sedimentation area and is communicated with the anaerobic water stop area and the anaerobic filter area through an overflow bend at an overflow port, the bottom of the anaerobic filter area is communicated with the anoxic filter area through a porous fixing plate at the bottom of the anoxic filter area, the upper part of the anoxic filter area is communicated with the sewage reoxygenation area through an overflow bend at the overflow port, the automatic oxygenation agent adding component is arranged in the sewage reoxygenation area, the bottom of the aerobic filter area is communicated with the aerobic filter area through a porous plate fixed at A water zone; sewage respectively enters the anaerobic water-stop zone and the sewage reaeration zone through overflow ports in the inclined plate sedimentation zone and the anoxic filtering zone in an overflow mode, and sewage in the anaerobic water-stop zone and the sewage reaeration zone respectively enters the anoxic filtering zone and the aerobic filtering zone in a reverse osmosis mode, so that water conservancy residence time is prolonged, and the sewage treatment effect is enhanced.
The pocket type retractable filter screen is a pocket type filter screen with the aperture of 5mm, and the pocket type retractable filter screen is directly hung and sleeved at an outlet of the domestic sewage drainage pipe and used for treating suspended matters in the domestic sewage.
The inclined plane of the energy dissipation sludge tank is sequentially provided with combined energy dissipation pipes with the diameters of 10mm, 15mm and 20mm from high to low, wherein the long part of each energy dissipation pipe positioned in the middle 1/3 pipe is a porous pipe and is filled with a flaky bacillus complexing agent with the same diameter as the circle for degrading macromolecular substances in sewage, and the rest parts are solid steel columns for reducing the potential energy of sewage discharged from a sewage pipe and about to fall into the bottom of the inclined plate sedimentation tank.
The anaerobic filtering area is filled with a specific microorganism carrier material and is used for degrading macromolecular organic matters in the sewage; the anoxic filtering area and the aerobic filtering area adopt filtering materials made of modified biomass ash.
The power micro-step sewage treatment device consists of an anaerobic filtering area consisting of a first filtering area, a second filtering area and a third filtering areaThe anoxic filtering area, the sewage reoxygenation area and the aerobic filtering area formed by the fourth filtering area are combined into a micro-type A2The O-grade multi-microorganism filtering treatment device can greatly improve the treatment effect on sewage.
The automatic oxygenation agent adding component comprises a drug storage tank, a drug adding pipe, a drug distributor and oxygenation agent slow-release pipes, wherein the drug storage tank is connected with the three oxygenation agent slow-release pipes through the drug adding pipe and the drug distributor, the two adjacent oxygenation agent slow-release pipes are 120 degrees, and the lengths of the three oxygenation agent slow-release pipes are 1/4, 1/2 and 5/6 of the height H of the aerobic filtering area respectively.
The active carbon filtering area is a filter element which is composed of a detachable active carbon filtering layer and can be replaced regularly, and cobbles are arranged in the water seepage area among the gravels.
The grain size of the filter material in the first filtering area is 3-4mm, and the grain size ranges of the filter material in the second filtering area to the fourth filtering area are respectively as follows: 4-6mm, 2-4mm and 0.5-1 mm.
The oxygenation agent adopted by the oxygenation agent automatic feeding part is slow-release CaO2Slow release type CaO2The powder is embedded by hydrophobic materials to form a slow-release type oxygen charging medicament, and the content of the hydrophobic materials is adjusted to obtain the required oxygen release period, so that long-term continuous oxygen supply is realized.
The invention has the beneficial effects that:
the invention adopts a unpowered micro-step sewage treatment device which combines a pocket type contractibility filter screen, an inclined plate sedimentation area, an energy dissipation sludge tank, an anaerobic water stop area, a multi-stage microorganism filtering area, a sewage reoxygenation area, an oxygenating agent automatic feeding part, an active carbon filtering area, an inter-gravel seepage area and the like, thereby realizing the effective treatment of the domestic sewage. A pocket type filter screen is tightly fixed at the outlet of the domestic sewage drain pipe, so that the removal of suspended matters in the domestic sewage is extremely simple and convenient; the energy dissipation sludge chute can effectively eliminate potential energy carried by domestic sewage, so that sludge deposited at the bottom of the chute is prevented from being impacted by water flow with overlarge flow velocity, is lifted to the upper part of the inclined plate deposition area and overflows to the anaerobic water storage area; the automatic adding part of the oxygen charging agent improves the automation degree of the device(ii) a The sewage oxygen-rich area adds granular oxygen to the water storage area through the automatic oxygen-charging agent adding part, wherein the main component of the granular oxygen is sodium bicarbonate, the intermediate product is hydrogen peroxide, and after the granular oxygen is added, the concentration of dissolved oxygen in the sewage is increased, so that the purpose of oxygen charging is achieved. The anaerobic water storage area, the anoxic filtering area, the sewage reaeration area and the aerobic filtering area form a micro A2And the O process obviously improves the sewage treatment effect.
The device mainly utilizes physical and biological methods to remove pollutants such as suspended matters, organic matters, ammonia nitrogen, total phosphorus and the like contained in the domestic sewage, and effectively reduces the pollution degree of the domestic sewage to nearby water areas. The device creatively replaces a mechanical aeration mode with a mode of slowly releasing granular oxygen into the sewage to provide sufficient dissolved oxygen for constructing an aerobic filtering area; the filter material of the microorganism filtering area adopts the modified biomass ash, the filter material has wide source, low cost and good filtering effect, and is a microorganism biofilm carrier with excellent performance; the water storage area and the filtering area are arranged in a combined manner, and water in the water storage area reversely seeps through the filtering area under the action of elevation difference, so that the water conservancy residence time is prolonged, and the sewage treatment effect is effectively improved; the automatic oxygenation agent adding part can greatly improve the sewage treatment efficiency of the device; the device does not need additional power, has low operation cost and easy maintenance, is suitable for the condition of distributed sewage discharge of single family in rural areas or remote areas, and can effectively reduce the pollution treatment burden and self-purification pressure of water areas nearby the areas if being effectively popularized.
Drawings
FIG. 1 is a flow chart of the apparatus of the present invention;
FIG. 2 is a schematic diagram of the apparatus of the present invention;
fig. 3 is a three-dimensional perspective view of the device of the present invention.
In the figure:
1: movable cover plate 2 in inclined plate sedimentation area: overflow bend 3 at the overflow port: fixing the top cover 4 of the anaerobic water storage area: collapsible pocket filter 5: sewage inlet pipe 6: inclined plate sedimentation zone 7: energy dissipation sludge tank 8: the combined energy dissipation pipe 9: energy dissipation sludge groove lifting rod 10: the anaerobic filtering area 11: the hanging groove 12: porous movable plate 13 of anoxic filtering zone: anaerobic water-stop zone 14: an anoxic filtering zone 15: porous fixed plate 16 at the bottom of the anoxic filtration zone: the guide plate 17: the movable cover plate 18 of the anoxic filtering area: overflow bend 19 at the overflow: the movable cover plate 20 of the medicine storage tank: medicine storage tank 21: a dosing tube 22: medicine distributor 23: the oxygenation agent slow-release tube 24: sewage reaeration area 25: a porous plate 26 is fixed at the bottom of the aerobic filtering area: the aerobic filtration zone 27: a movable perforated plate 28 at the top of the aerobic filtration zone: activated carbon filtration zone 29: gravel seepage zone 30: the net-like movable cover 31: anaerobic zone sludge cleaning port 32: the aerobic zone sludge cleaning port.
Detailed Description
The invention is further described and illustrated in the following figures:
as shown in fig. 2 and 3, the unpowered micro-step sewage treatment device comprises an inclined plate sedimentation area movable cover plate 1, an anaerobic water storage area fixed top cover 3, a pocket type retractable filter screen 4, a sewage inlet pipe 5, an inclined plate sedimentation area 6, an energy dissipation sludge tank 7, an energy dissipation sludge tank lifting rod 9, a hanging tank 11, an anoxic filtering area porous movable plate 12, an anaerobic water stop area 13, an anaerobic filtering area 10, an anoxic filtering area 14, a guide plate 16, an anoxic filtering area movable cover plate 17, an oxygenating agent automatic feeding component, a sewage reoxygenation area 24, an aerobic filtering area bottom fixed porous plate 25, an aerobic filtering area 26, an aerobic filtering area top movable porous plate 27, an activated carbon filtering area 28, an inter-gravel water seepage area 29, a mesh-shaped movable cover 30, an anaerobic area sludge cleaning port 31, an aerobic area sludge cleaning port 32 and the like.
A bag-type contractible filter screen 4 is arranged at a sewage inlet at the upper part of the inclined plate sedimentation zone 6, an energy dissipation sludge tank 7 is arranged at the lower part of the inclined plate sedimentation zone and is communicated with an anaerobic water stop zone 13 and an anaerobic filtering zone 10 through an overflow bend 2 at an overflow port, the bottom of the anaerobic filtering zone 10 is communicated with an anoxic filtering zone 14 through a porous fixing plate 15 at the bottom of the anoxic filtering zone, the upper part of the anoxic filtering zone 14 is communicated with a sewage reoxygenation zone 24 through an overflow bend 18 at the overflow port, an oxygenating agent automatic adding component is arranged in the sewage reoxygenation zone 24, the bottom of the sewage reoxygenation zone 24 is communicated with an aerobic filtering zone 26 through a porous plate 25 fixed at the bottom of the aerobic filtering zone, and an active carbon filtering zone; sewage respectively enters the anaerobic water-stop zone 13 and the sewage reaeration zone 24 through overflow ports in the inclined plate precipitation zone 6 and the anoxic filtering zone 14 in an overflow mode, and sewage in the anaerobic water-stop zone 13 and the sewage reaeration zone 24 respectively enters the anoxic filtering zone 14 and the aerobic filtering zone 26 in a reverse osmosis mode, so that water conservancy residence time is prolonged, and the sewage treatment effect is enhanced.
Collapsible pocket filter 4: the diameter of the mesh is about 15mm, the specification is 36cm 22cm, the filter screen is in a bag shape, the mesh opening is shrinkable, the aperture of the net bag is moderate, the capability of intercepting suspended matters is weakened due to the overlarge aperture, when the aperture is too small, and when the amount of the suspended matters in the net bag reaches a certain degree, the net bag is unsmooth to pass through water, so that the normal sewage discharge capability of the sewage pipe is influenced. The capacity of the filter screen is large enough, so that the filter screen can be reused only by regularly replacing a spare filter screen or emptying the garbage of the filter screen.
The inclined plate sedimentation zone 6: the settling zone is triangular, the upper part of the settling zone is provided with a movable cover, and the settling zone is made of a stainless steel plate with the thickness of 5 mm. Is convenient for cleaning and replacing the filter screen and treating the sludge in the sludge discharge groove. After passing through the net bag type filter screen, sewage enters the inclined plate sedimentation area to be preliminarily precipitated, sludge or small-particle-size suspended matters in the sewage are freely precipitated under the action of gravity, and are gathered to the bottom of the sedimentation area along the inclined plate.
Energy dissipation sludge tank 7: the filter screen is nested at the bottom of the inclined plate sedimentation area, and is mainly used for collecting sludge or suspended matters with the particle size smaller than the pore size of the filter screen, which are precipitated in the inclined plate sedimentation area, so that the treatment of precipitated aggregates is facilitated. A stainless steel round pipe with the diameter of 8mm is arranged above the sludge tank, so that the sludge tank can be conveniently extracted from the bottom of the inclined plate sedimentation zone. The inclined plane of energy dissipation sludge groove 7 sets gradually the combined energy dissipation pipe 8 that the diameter is 10mm respectively from high to low, 15mm, 20mm, wherein, every energy dissipation pipe 8 is located middle 1/3 pipe length position and is the perforated pipe, fills with the flaky bacillus complexing agent that is equivalent to the radius in for the macromolecular material in the degradation sewage, other positions are solid steel column, be used for subducing the potential energy that will fall into the sewage of swash plate sedimentation tank bottom from the sewage pipe discharge, avoid making sludge tank bottom mud to be blown up to settling zone upper portion by the too big rivers impact of velocity of flow.
An overflow port: a miniature unpowered stepped sewage treating apparatus features that the potential energy is converted into kinetic energy by use of height difference, so the sewage can flow through overflow port freely. An overflow port with the height of 10mm is respectively arranged between the inclined plate sedimentation zone 6 and the anaerobic water stop zone 13 and between the anoxic filtering zone 14 and the sewage re-oxidation zone 24.
Anaerobic water stop zone 13: the sewage overflowing from the inclined plate sedimentation zone 6 enters an anaerobic water storage zone, the upper part of the anaerobic water storage zone is sealed, the lower part of the anaerobic water storage zone is sealed, and the anaerobic state is kept for a long time.
The anaerobic filtering area 10: the specific microorganism carrier material which is different from the anoxic filtering area 14 and the aerobic filtering area 26 is filled, and suspended matters with larger particle size and macromolecular organic pollutants in the sewage can be intercepted by the carrier material and specifically degraded into small molecular substances.
The anoxic filtration zone 14: the lower part of the anoxic filtering area is sealed by water, the upper part is closed, sewage in the anaerobic water storage area is upwards percolated from the bottom of the filtering area under the action of elevation difference in a reverse osmosis mode, wherein the No. 1 filtering area and the No. 2 filtering area of the anoxic filtering area both adopt modified biomass ash residues with the particle size of 2-4mm as filtering materials, the porous plates between the No. 1 filtering area and the No. 2 filtering area are stainless steel plates with the thickness of 2mm, and the pore diameter is 6 mm. The upper porous plate plays a role in regulating filter materials and reverse osmosis sewage flow, the middle porous plate plays a role in bearing the filter materials and dividing the filter area, and favorable water conservancy conditions are constructed for reverse osmosis. Wherein, reverse osmosis will improve water conservancy dwell time, strengthen sewage treatment effect.
An oxygenating agent automatic feeding part: the upper part is provided with a medicine storage tank 20 and a movable cover plate 19 of the medicine storage tank, and the lower part is connected with a medicine feeding pipe 21. Because of the longitudinal mass transfer of oxygen, the DO of the lower water body is maintained for a short time, three oxygenation agent slow-release pipes 23 are arranged at the lower part of the dosing pipe 21 through a medicine distributor 22, any two adjacent oxygenation agent slow-release pipes are 120 degrees, the height of the aerobic filtering area 26 is set to be H, the lengths of the three slow-release pipes are respectively H/4, H/2 and 5H/6, and three oxygenation agent adding parts are equidistantly and parallelly distributed in the horizontal direction of the sewage reoxygenation area 24, so that the oxygenation agents can be uniformly and slowly released to different directions and vertical heights of the sewage reoxygenation area. The walls of the medicine storage tank 20 and the medicine adding pipe 21 are stainless steel pipes with the thickness of 2 mm; the thickness of the wall of the oxygenation medicament slow release pipe 23 is a stainless steel pipe with the thickness of 1 mm. The wall and the bottom of the oxygenation medicament slow release pipe 23 are both porous, and the aperture is 3 mm.
An oxygen charging agent: the oxygen charging medicament adopts slow-release CaO2. The calcium peroxide can slowly react with water to release oxygen and can generate flocculation to increase the transparency of the water body; CaO (CaO)2Can generate a large amount of oxygen when meeting water, and has the advantages of simple operation, environmental protection, high oxygen release efficiency, low price and the like. Powder CaO2After being embedded by the hydrophobic material, the contact area with water is reduced, and the reaction speed is slowed down. CaO (CaO)2The oxygen release rate of the slow-release oxygen agent is reduced along with the increase of the content of the hydrophobic material, so that the required oxygen release period can be obtained by adjusting the content of the hydrophobic material, and long-term continuous oxygen supply is realized.
Sewage reaeration area 24: after the sewage passes through the anaerobic water storage area and the anoxic filtering area, the content of dissolved oxygen in the water is in a low value state. The sewage flows into the sewage reoxygenation area after reversely permeating the anoxic filtering area, the granular oxygen is transferred to the slow release pipe through the automatic oxygenation agent adding part and is slowly released into the sewage after contacting the sewage from the anoxic filtering area, and the dissolved oxygen content in the sewage is restored to a high value state after chemical reaction, so that sufficient dissolved oxygen conditions are provided for the aerobic filtering area, and the filtering effect of the aerobic filtering area is ensured.
The aerobic filtering area 26: the sewage reoxygenation area 24 is communicated with the bottom of the aerobic filtering area 26, under the action of elevation difference, sewage with higher dissolved oxygen content in the sewage reoxygenation area 24 reversely seeps through the aerobic filtering area, and modified biomass ash slag with the grain diameter of 0.5-1mm is filled in the aerobic filtering area 26 as a filtering material. Suspended matters and pollutants in the sewage are removed under the interception of the filter material and a biological membrane on the surface of the filter material or the physiological metabolism of microorganisms, so that the water quality of the sewage discharged into natural water is improved.
Activated carbon filtration zone 28: the upper part of the aerobic filtering area 26 is provided with an active carbon filtering area 28, and an active carbon filter element is arranged in the filtering area.
Intergravel water-seepage zone 29: the active carbon filtering area 28 is followed by a water seepage area 29 between gravels, coarse and clean cobbles or building stone tile waste are arranged in the active carbon filtering area, and the active carbon filtering area plays a role in clarification and filtration.
As shown in FIG. 1, the implementation process of the invention comprises the following steps:
a contractible bag-shaped filter screen 4 is tightly fixed at the sewage drain pipe 5 close to the circumference of the water outlet, and then the opening of the filter screen is contracted to prevent suspended matters from leaking; when the total amount of suspended solid in the domestic sewage collected in the filter screen 4 reaches a certain degree, the cover plate 1 can be opened, the filter screen 4 is detached, and the garbage in the filter screen is emptied, and then the filter screen is recycled or a new filter screen sewage is directly used. The sewage flows into the inclined plate sedimentation zone 6 after being filtered by the contractible bag-shaped filter screen 4 to remove suspended matters with larger particle sizes. The sludge that the inclined plate sedimentation zone 6 subsides gets off will carry out the dystopy through detachable energy dissipation sludge groove 7 and handle, and the solid steel column that the diameter differs on the energy dissipation sludge groove inclined plate can effectively subduct the potential energy of the sewage that falls in the sewage pipe to effectively avoid making sludge tank bottom mud to be raised to sedimentation zone upper portion by the too big water impact of velocity of flow. Sewage in the inclined plate sedimentation zone 6 overflows through an overflow port overflow bend 2 and enters an anaerobic water stop zone 13 through an anaerobic filtering zone 10, domestic sewage in the anaerobic water storage zone 13 reversely permeates into No. 2 and No. 3 anoxic filtering zones through porous steel plates in the filter under the action of height difference, and the No. 2 and No. 3 filtering zones of the anoxic filtering zone adopt modified biomass ash slag with the particle size of 2-4mm as filtering materials. The sewage in the anoxic filtering area overflows to a sewage reoxygenation area 24 through an overflow port overflow bend 18, under the combined action of a medicine storage tank 20, a medicine adding pipe 21, a medicine distributor 22 and an oxygenation medicine slow-release pipe 23 of an oxygenation medicine automatic adding part, the oxygenation medicines are uniformly and slowly released to each position of the sewage reoxygenation area, so that the sewage with the dissolved oxygen in a low value state from the anoxic filtering area 14 is quickly recovered to the state with the dissolved oxygen in a high value state, and necessary dissolved oxygen conditions are provided for the sewage treatment in the aerobic filtering area 26. The sewage in the sewage reoxygenation area 24 reversely seeps into the aerobic filtering area 26 under the action of the elevation difference, then reversely seeps through the activated carbon filtering area 28 and finally seeps out of the water seepage area 29 among the gravels. And finally, discharging the sewage effectively treated by the unpowered micro sewage treatment device into a natural water body. Wherein, the inclined plate sedimentation area movable cover plate 1, the anoxic filtering area movable cover plate 17 and the reticular movable cover 30 are all movable covers, which is convenient for sludge treatment and filter material replacement. 3 oxygenation agent adding parts are distributed in parallel in the horizontal direction of the sewage reaeration area at equal intervals, so that oxygenation agents can be uniformly and slowly released to the sewage reaeration area, the dissolved oxygen content in the sewage from the anoxic filtering area is quickly recovered to a high value state, and necessary sufficient dissolved oxygen content is provided for the aerobic filtering area. The No. 1 filtering area is filled with a specific microorganism carrier material to degrade macromolecular substances in the sewage. The filtering material of No. 2-4 filtering area is modified biomass ash, and the particle size is reduced in turn, so that the multi-stage filtration of sewage is realized, the suspended substances and pollutants in water are removed under the interception of the biological membrane on the surface of the filtering material and the filtering material or the physiological metabolism of microorganism, and the water quality of the sewage discharged into natural water body is improved.
Claims (9)
1. The utility model provides a miniature step sewage treatment plant of unpowered, includes pocket formula retractility filter screen (4), inclined plate settling zone (6), energy dissipation sludge impoundment groove (7), anaerobism cutting off water district (13), anaerobism filtering area (10), oxygen deficiency filtering area (14), automatic throwing of oxygenating medicament part, sewage reoxygenation district (24), good oxygen filtering area (26), active carbon filtering area (28), gravel infiltration district (29), its characterized in that: a pocket type contractible filter screen (4) is arranged at the sewage inlet at the upper part of the inclined plate sedimentation zone (6), an energy dissipation sludge groove (7) is arranged at the lower part, the anaerobic water stop zone (13) is communicated with the anaerobic filtering zone (10) through an overflow bend (2) at an overflow port, the bottom of the anaerobic filtering zone (10) is communicated with an anoxic filtering zone (14) through a porous fixing plate (15) at the bottom of the anoxic filtering zone, the upper part of the anoxic filtering zone (14) is communicated with a sewage reoxygenation zone (24) through an overflow bend (18) at the overflow port, an oxygenating agent automatic feeding part is arranged in the sewage reoxygenation zone (24), the bottom of the sewage reoxygenation zone (24) is communicated with an aerobic filtering zone (26) through a fixed porous plate (25) at the bottom of the aerobic filtering zone, and an active carbon filtering zone (28) and a water seepage zone (29) between gravels are arranged on a movable porous plate (27) at the top of; sewage respectively enters an anaerobic water-stop zone (13) and a sewage reoxygenation zone (24) through overflow ports in an inclined plate sedimentation zone (6) and an anoxic filtering zone (14) in an overflow mode, and sewage in the anaerobic water-stop zone (13) and the sewage reoxygenation zone (24) respectively enters the anoxic filtering zone (14) and the aerobic filtering zone (26) in a reverse osmosis mode, so that the water conservancy residence time is prolonged, and the sewage treatment effect is enhanced.
2. The unpowered micro-step sewage treatment plant according to claim 1, wherein: the pocket type retractable filter screen (4) is a pocket type filter screen with the aperture of 5mm, and the pocket type retractable filter screen (4) is directly hung and sleeved at the outlet of the domestic sewage drainage pipe and used for treating suspended matters in the domestic sewage.
3. The unpowered micro-step sewage treatment plant according to claim 1, wherein: the inclined plane of energy dissipation sludge groove (7) sets gradually from high to low diameter respectively 10mm, 15mm, 20 mm's combination energy dissipation pipe (8), wherein, every energy dissipation pipe (8) is located middle 1/3 pipe length position and is the perforated pipe, fills with the slice bacillus complexing agent that is equivalent to the circle footpath for the macromolecular material in the degradation sewage, and other positions are solid steel column, are used for subducing the potential energy that will fall into the sewage of swash plate sedimentation tank bottom from the sewage pipe discharge.
4. The unpowered micro-step sewage treatment plant according to claim 1, wherein: the anaerobic filtering area (10) is filled with a specific microorganism carrier material and is used for degrading macromolecular organic matters in the sewage; the anoxic filtering area (14) and the aerobic filtering area (26) adopt filtering materials made of modified biomass ash.
5. The unpowered micro-step sewage treatment plant according to claim 1, wherein: the power micro step sewage treatment device is a micro A formed by combining an anaerobic filtering area (10) consisting of a first filtering area, an anoxic filtering area (14) consisting of a second filtering area and a third filtering area, a sewage reoxygenation area (24) and an aerobic filtering area (26) consisting of a fourth filtering area2The O-grade multi-microorganism filtering treatment device can greatly improve the treatment effect on sewage.
6. The unpowered micro-step sewage treatment plant according to claim 1, wherein: the automatic part of throwing of oxygenating medicament includes medicine storage tank (20), adds pencil (21), distributor (22), oxygenating medicament slow-release tube (23), medicine storage tank (20) are through adding pencil (21), distributor (22) three and are oxygenated medicament slow-release tubes (23), wherein, are 120 degrees between two arbitrary adjacent oxygenating medicament slow-release tubes (23), and three are oxygenated medicament slow-release tubes (23) length respectively for 1/4, 1/2, 5/6 of good oxygen filtering area (26) height H.
7. The unpowered micro-step sewage treatment plant according to claim 1, wherein: the active carbon filtering area (28) is a filter element which is composed of a detachable active carbon filtering layer and can be replaced regularly, and cobbles are arranged in the gravel seepage area (29).
8. The unpowered micro-step sewage treatment device according to claim 5, wherein: the grain size of the filter material in the first filtering area is 3-4mm, and the grain size ranges of the filter material in the second filtering area to the fourth filtering area are respectively as follows: 4-6mm, 2-4mm and 0.5-1 mm.
9. The unpowered micro-step sewage treatment device according to claim 6, wherein: the oxygenation agent adopted by the oxygenation agent automatic feeding part is slow-release CaO2Slow release type CaO2The powder is embedded by hydrophobic materials to form a slow-release type oxygen charging medicament, and the content of the hydrophobic materials is adjusted to obtain the required oxygen release period, so that long-term continuous oxygen supply is realized.
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| CN201710618518.5A CN107522351B (en) | 2017-07-26 | 2017-07-26 | Unpowered miniature step sewage treatment plant |
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| CN107522351A (en) | 2017-12-29 |
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Application publication date: 20171229 Assignee: SHANGHAI YOULI ENVIRONMENT TECHNOLOGY Co.,Ltd. Assignor: University of Shanghai for Science and Technology Contract record no.: X2023310000155 Denomination of invention: Unpowered micro cascade sewage treatment device Granted publication date: 20200515 License type: Common License Record date: 20231019 |