CN108793599A - A kind of low-concentration organic wastewater processing system - Google Patents
A kind of low-concentration organic wastewater processing system Download PDFInfo
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- CN108793599A CN108793599A CN201810622995.3A CN201810622995A CN108793599A CN 108793599 A CN108793599 A CN 108793599A CN 201810622995 A CN201810622995 A CN 201810622995A CN 108793599 A CN108793599 A CN 108793599A
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- sand
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- aerobic tank
- anoxic pond
- tank
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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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of low-concentration organic waste water processing systems, including anoxic pond, aerobic tank, filler separate tank, sand filter and the equipment room being sequentially communicated, and the lower part of the anoxic pond is provided with feed water inlet, and feed water inlet is connected to water supply water inlet line；The anoxic pond is connected to by overflow port A with aerobic tank；Aeration zone is equipped in the aerobic tank, the aerobic tank is covered with porous biologic packing material, and biologic packing material is attached with microorganism；The filler separate tank is located on the outside of the water outlet of aerobic tank, and is separated between the two by scum board with aerobic tank, and there are gaps for the bottom of scum board and filler separate tank.Beneficial effects of the present invention are：Anoxic pond, aerobic tank, filler separate tank and sand filter are integrated in one, technology of biological membrane and dynamic sand filtering technology are combined, and entire sewage disposal process is manipulated using PLC control system, this sewage disposal configures strong shock resistance, ensure effluent quality, operating cost is reduced, various low-concentration organic waste waters can be handled.
Description
Technical field
The present invention relates to water-treatment technology fields, and in particular to a kind of low-concentration organic wastewater processing system.
Background technology
The sewage such as Small Town Wastewater, hospital sewage, Peasants Joy sewage, tourist district's sewage usually small, the water quality water with water
The features such as amount fluctuation is big, remote, economic civilization is horizontal low, is current environmental protection how to above-mentioned a variety of decentralized wastewater treatments
One of the problem that industry faces.
Currently, for above-mentioned several sewage, the treatment process of large- and-medium size cities sewage treatment plants is usually continued to use, such as
A2/ O techniques, oxidation ditch process, SBR techniques etc., these be transplanted to simple for processly small water, low concentration distributed sewage at
In science and engineering journey, the sewage-treatment plant for being on the one hand used for city is difficult to play its due effect, and another aspect construction cost is high,
Operating cost is high, and operational management requires high.In recent years, domestic in recent years to be sent out in integrated MBR (membrane bioreactor) direction
Exhibition is very fast, and MBR effluent qualities are good, but it is high with investment cost, operating cost height, film are easy dirty stifled, cleaning difficulty, operation pipe
Reason requires the shortcomings of very high, and popularization and application are greatly limited.
Therefore, it is badly in need of a kind of Small Town Wastewater, hospital sewage, Peasants Joy sewage, tourist district's sewage, low dense of capable of handling of exploitation
Spend the Small Sewage Treatment Equipments such as food industry organic wastewater and river micro-polluted water or system.
Invention content
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of good effluent quality, investment and operating cost
Low low-concentration organic waste water processing system.
The technical solution adopted by the present invention is：A kind of low-concentration organic waste water processing system, main includes being sequentially communicated
The lower part of anoxic pond, aerobic tank, filler separate tank, sand filter and equipment room, the anoxic pond is provided with feed water inlet, feed water inlet and confession
Water water inlet line is connected to；The anoxic pond is connected to by overflow port A with aerobic tank；Aeration zone is equipped in the aerobic tank, it is described
Aerobic tank is covered with porous biologic packing material, and biologic packing material surface and endoporus are attached with microorganism；The filler separate tank is located at
On the outside of the water outlet in oxygen pond, and separated between the two by scum board with aerobic tank, the bottom of scum board and filler separate tank
There are gaps；The face of the filler separate tank is the inclined-plane tilted down to aerobic tank direction；The water outlet of the filler separate tank
Side is connected to sand filter, and the water outlet side of sand filter is equipped with water outlet；The equipment room is set to the bottom of filler separate tank, equipment room
It is interior to be configured with PLC control system.
By said program, the filler separate tank is connected to by reflux line with the bottom of anoxic pond, is matched on reflux line
It is equipped with reflux pump, the water outlet of reflux line is located in anoxic pond.
By said program, the bottom of the aerobic tank is equipped with evacuation port B, and four pieces of reverse flow baffles, reflux gear are set in aerobic tank
Plate is enclosed aeration zone；Annular region between the outside and aerobic tank inner wall of reverse flow baffle is recirculating zone；In aeration zone
Bottom is equipped with multiple aerators, and aerator is connected to aeration manifold；There are gaps for the bottom surface of the reverse flow baffle and aerobic tank.
By said program, the influent side of the sand filter is connected to by overflow port B with filler separate tank, filling in sand filter
The bottom of fine sand, sand filter is equipped with sand removing hole C；The water outlet side setting sand filtration area overflow port C of the sand filter；In the sand filter
It is equipped with water inlet pipe, sand extraction tube, water distributor and three phase separator, the water inlet pipe adds pipe with dephosphorization agent and is connected to, and water inlet pipe enters
Mouth is connected to overflow port B, and water inlet pipe is pierced by after water distributor from the water outlet side wall of sand filter；The water inlet pipe is located at water distributor
Interior part offers apopore；The sand extraction tube is vertical at the inside center of sand filter, the lower end of sand extraction tube and sand filter
There are gaps for bottom；The lower port of the sand extraction tube and the outlet of compressed air pipe；It wears the upper end of the sand extraction tube
Interior reflux cone is stretched into after crossing water distributor, interior reflux cone is connected with three phase separator, and three phase separator is offered to be connected to sand filter
Washed-out sand water outlet.
By said program, the sand filter lower part is in rectangular pyramid structure；It is provided with emptying in the side of rectangular pyramid structure
Mouth and manhole；The water distributor is in rectangular pyramid structure corresponding with sand filter lower part；The big mouth down of the water distributor, water distribution
Multihole distributor is arranged in the big opening end of device, and multiple apopores are evenly distributed on multihole distributor.
By said program, the interior reflux cone includes upper conical section and lower straighttube section, and the cone mouth of the upper conical section is upward；
The sand extraction tube is inserted into lower straighttube section, and there are gaps between the outer wall and the inner wall of lower straighttube section of sand extraction tube.
By said program, the three phase separator includes upper straight pipe and lower conical section, the upper end of the upper straight pipe
Beyond liquid level, upper straight pipe offers the washed-out sand water outlet being connected to sand filter；The internal diameter of upper straight pipe is less than sand extraction tube
Internal diameter, Open Side Down and is arranged with the cone mouth face of interior reflux cone for the lower conical section.
By said program, water distributor installation corresponding with the rectangular pyramid structure of sand filter lower part, and between the two
Distance is 5~25mm.
By said program, the bottom of the anoxic pond is equipped with evacuation port A；Water inflow nozzle is installed in the feed water inlet of anoxic pond；
The water outlet of reflux line is located in anoxic pond, and the water outlet of reflux line installs reverse flow nozzle, and water inflow nozzle is sprayed with reflux
Mouth it is parallel and it is front and back be staggered, water inflow nozzle is opposite with the injection direction of reverse flow nozzle.
By said program, the broken siphon pipe being connected to water supply line is set in the top of anoxic pond, breaks the opening of siphon pipe
Downward and higher than the liquid level of anoxic pond.
Beneficial effects of the present invention are：
1, anoxic pond, aerobic tank, filler separate tank and sand filter are integrated in one by the present invention, and filling is certain in aerobic tank
The biofilm packing of ratio, sand filter are filtered using dynamic sand, and technology of biological membrane and dynamic sand filtering technology are combined, and are utilized
PLC control system manipulates entire sewage disposal process, and this sewage disposal configures strong shock resistance, ensures water outlet water
Matter reduces operating cost, and automatization level is high, can handle various low-concentration organic waste waters；Package unit adapts to larger water
Matter water fluctuates, and its construction cost is low, and operating cost is low, and management is convenient, and sludge yield is few and removable；MBR when not using
Technique, the problem of fundamentally avoiding fouling membrane；
2, the mechanical agitation mode of anoxic pond abandoning tradition will be staggered before and after nozzle that water supply line is exported with reflux line
It is arranged and injection direction is opposite, flow is made to form being stirred for convolution, greatly reduces the power of agitator consumption of anoxic pond, carry
High water inlet, the mixing of phegma and sludge, enhance mass transfer, improve denitrification denitrogenation effect；
3, aerobic tank uses efficient biologic packing material, microorganism to be attached to filler surface and endoporus growth, form densification
Biomembrane constitutes complete microbial ecosystem in biomembrane, using the pollutant in the biological membrane degradation sewage on filler,
Improve effluent quality；Jet aerator is arranged in the bottom of aeration zone, and the compressed air and water sprayed through jet aerator is violent
Air is cut into diameter and reaches micron-sized micro-bubble, in micro-bubble uphill process, drives sewage, sludge by collisional mixing
It is moved upwards with filler, forms fluidization, enhance the mass transport process mass transfer of pollutant, biomembrane, oxygen and decomposition product；And
The collision of bubble and biologic packing material further by bubble-break, greatly improves the utilization rate of oxygen, molten in aerobic tank to make
Solution oxygen concentration reaches high, while reducing the energy consumption of aeration；The suspended sludge of aerobic tank is largely back to anoxic pond, both protects
The sludge concentration of anoxic pond has been demonstrate,proved, and can guarantee the effect of denitrification removing total nitrogen；
4, filler separate tank is set, the floor design of filler separate tank is inclined-plane, and biologic packing material is returned using the gravity of itself
It flow in aerobic tank, effectively prevents the loss of biologic packing material, reduce production cost；
5, the structure in dynamic sand filtering pond ensure that the automatic cleaning of filtering sand, will not cause the hardened of conventional sand filter
And blockage problem；Dephosphorization reagent is added by collateral branch's pipe in the water inlet pipe of sand filter, water outlet phosphorus content can be further decreased；Sand
The bottom in filter tank is rectangular pyramid structure, and also correspondence is designed as taper to water distributor, by controlling water distributor lower edge and conical bottom
Gap between portion, the speed of controllable dynamic sand reflux, sand enters water distribution when realizing the continuous wash of sand, and can prevent from shutting down
Device and block water distributor；Water inlet pipe upper edge into water distributor is evenly distributed with several 10~20mm of diameter with vertical face in 45 degree of angular direction
Apopore, sewage can be enable even into water distributor；The water outlet of several 5~15mm of diameter is provided in water distributor bottom plane
It is more uniform can to use water distribution for hole；
6, the broken siphon pipe 1.3 being connected to water supply line 5 is arranged in the top of anoxic pond 1 by the present invention, breaks siphon pipe 1.3
It is discharged mouth down and the liquid level higher than anoxic pond 1, siphonic effect is generated when can effectively prevent shutting down and empties the sewage of anoxic pond 1
And sludge.
Description of the drawings
Fig. 1 is the structural schematic diagram of a specific embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
Wherein：1, anoxic pond；1.1, water inflow nozzle；1.2, reverse flow nozzle；1.3, siphon pipe is broken；1.4, evacuation port A；2, good
Oxygen pond；2.1, reverse flow baffle；2.2, jet aerator；2.3, biologic packing material；2.4, evacuation port B；2.5, it is aerated manifold；2.6, wind
Machine；2.7, valve group B is adjusted；3, filler separate tank；3.1, scum board；4, sand filter；4.1, three phase separator；4.2, interior reflux
Cone；4.3, sand extraction tube；4.4, water distributor；4.5, evacuation port C；4.6, water inlet pipe；4.7, fine sand；4.8, rectangular pyramid structure；
4.9, manhole；4.10, sand flash valve；4.11, apopore；4.12, multihole distributor；4.13, dephosphorization agent adds pipe；4.14, washed-out sand
Water outlet；5, water supply line；6, reflux line；7, overflow port A；8, water outlet A；9, downflow weir B；10, downflow weir C；12, it sets
Between standby；12.1, control cabinet；13, compressed air pipe；13.1, air compressor machine；13.2, pressure gauge；13.3, valve group A is adjusted；13.4,
Air nozzle；14, reflux pump；15, water outlet C.
Specific implementation mode
For a better understanding of the present invention, the present invention is further described in the following with reference to the drawings and specific embodiments.
A kind of low-concentration organic waste water processing system as depicted in figs. 1 and 2, it is main include the anoxic pond 1 being sequentially communicated,
Aerobic tank 2, filler separate tank 3, sand filter 4 and equipment room 12 configure equipment room 12 in the lower section of filler separate tank 3, described to lack
The lower part in oxygen pond 1 is provided with feed water inlet, and feed water inlet is connected to water supply line 5；Overflow is equipped between the anoxic pond 1 and aerobic tank 2
Mouth A7；Aeration zone, a certain proportion of porous biologic packing material 2.3 built in the aerobic tank 2, biology are equipped in the aerobic tank 2
Microorganism is attached in the surface of filler 2.3 and endoporus, microorganism forms fine and close biomembrane, and biomembrane inner member constitutes complete
Microbial ecosystem；The filler separate tank 3 is located on the outside of the water outlet of aerobic tank 2, and passes through between the two with aerobic tank 2
Scum board 3.1 separates, and the bottom of scum board 3.1 is connected to aerobic tank 2；The filler separate tank 3 by reflux line 6 with
The bottom of anoxic pond 1 is connected to；The bottom surface of filler separate tank 3 is the inclined-plane tilted down to 2 direction of aerobic tank；The filler separation
Overflow port B9 is equipped between the water outlet side and sand filter 4 in pond 3, the water outlet side of the sand filter 4 is equipped with water outlet 4.7；It is described to set
12 are configured with PLC control system in the bottom of filler separate tank 3, equipment room 12 between standby.
In the present invention, the anoxic pond 1 is arranged as：The bottom of the anoxic pond 1 is equipped with evacuation port A1.4；In anoxic pond
1 feed water inlet is installed by water inflow nozzle 1.1；Configured with reflux pump 14 and throttling valve group B, the water outlet of reflux line 6 on reflux line 6
Mouth is located in anoxic pond 1, and the water outlet of reflux line 6 installs reverse flow nozzle 1.2, and the nitrification liquid of reflux exists under pressure
Eddy flow is formed in anoxic pond 1；Water inflow nozzle 1.1 it is parallel with reverse flow nozzle 1.2 and it is front and back be staggered, water inflow nozzle 1.1 with reflux spray
The injection direction of mouth 1.2 is opposite (to be utilized the impact of two bursts of flows, so that sewage and sludge in anoxic pond 1 is formed cycle mixing, see figure
2)：In the top of anoxic pond 1, the broken siphon pipe 1.3 that is connected to water supply line 5 is set, the water outlet mouth down of broken siphon pipe 1.3 and
Higher than the liquid level of anoxic pond 1, (sewage and the dirt for generating siphonic effect when siphon pipe 1.3 can prevent from shutting down and emptying anoxic pond 1 are broken
Mud).In the present embodiment, downflow weir A7 is equipped between the anoxic pond 1 and aerobic tank 2, to prevent the filler of aerobic tank 2 along overcurrent
Hole enters anoxic pond 1, and partition wall is equipped with water outlet A 8 (namely flowing hole), and the liquid level of anoxic pond 1 is kept to be higher than aerobic tank
20-210cm, the sewage in anoxic pond 1 enter aerobic tank 2 through overflow port A7 and the gravity flow of flowing hole 8.
In the present invention, the aerobic tank 2 is arranged as：The bottom of the aerobic tank 2 is equipped with evacuation port B2.4, aerobic tank 2
Four pieces of reverse flow baffles 2.1 are inside set, reverse flow baffle 2.1 is enclosed aeration zone；The outside of reverse flow baffle 2.1 and 2 inner wall of aerobic tank
Between annular region be recirculating zone；Multiple aerators 2.2 (can be jet aerator) are installed in the bottom of aeration zone, are aerated
Device 2.2 is connected to aeration manifold 2.5, is aerated on manifold 2.5 and is equipped with wind turbine 2.6 and adjusting valve group B2.7；The reverse flow baffle
2.1 there are the gaps of 200~500mm with the bottom surface of aerobic tank 2, are produced by aeration convenient for biologic packing material, sludge and the sewage of reflux
Raw vacuum suck aeration zone；2.1 top of reverse flow baffle is apart from 500~1000mm of liquid level, convenient for biologic packing material 2.3, sludge, dirt
The separation of water, air makes the clarifying contaminated liquids of 2 ullage of aerobic tank.The biologic packing material 2.3 is spherical or elliposoidal, quality
The structure of softness, rough surface, internal porous, wherein the surface attachment aerobic microbiological of biologic packing material 2.3 forms fine and close life
Object film, the endoporus attachment anaerobe of biologic packing material and anoxic microorganism form fine and close biomembrane, biologic packing material 2.3 by
When shock loading or noxious material impact, the aerobic microbiological on surface is dead, and the anaerobe of endoporus and the micro- life of anoxic
Object can survive, and when condition is suitble to, system can comparatively fast restore normal again；The side that this aerobic microbiological is combined with anaerobe
Formula improves the ability of system removing total nitrogen.In the present embodiment, the specific surface area of biologic packing material 2.3 is up to 2000m2/m3More than,
Hydrophily is extremely strong, and proportion is 1~1.2kg/L.A diameter of 0.5~30mm of biologic packing material 2.3；The endoporus shape of biologic packing material 2.3
Shape is irregular, a diameter of 1 μm~100 μm of endoporus.The material of biologic packing material 2.3 is high molecular polymer, modified PE, modification
PP, polyurethane, PVDF and other plastics etc. have higher hydrophily and one's own physical property, are convenient for the absorption of microorganism.
In the present invention, the filler separate tank 3 is arranged as：Pass through dross between the filler separate tank 3 and aerobic tank 2
Baffle 3.1 separates, and bottom 50mm-200mm of the scum board 3.1 apart from filler separate tank 3, the top of scum board 3.1 is higher than
Liquid level 200-300mm；The bottom angled of the filler separate tank 3,30-60 ° of angle of inclination glide convenient for filler and sludge and flow back
To the recirculating zone of aerobic tank 2；The water outlet side of the filler separate tank 3 sets overflow port B9, and the filler separate tank 3 passes through overflow
Mouth B9 is connected to sand filter 4.
In the present invention, the sand filter 4 is arranged as：Clean and uniform particle sizes fine sands are filled in the sand filter 4
The packed height of 4.7, a diameter of 0.2~1.0mm of sand grains, fine sand 4.7 are 0.6~1.2m；The water outlet side of the sand filter 4 is equipped with
Downflow weir C10, sewage up to standard are discharged through the water outlet C15 at downflow weir C10；4 lower part of the sand filter is in rectangular pyramid knot
Structure 4.8,45-60 ° of the cone angle of rectangular pyramid structure 4.8；It is provided with evacuation port 4.5 and manhole in the side of rectangular pyramid structure 4.8
4.9, convenient for emptying and sediment outflow, maintenance etc.；The sand filter 4 is built-in with water inlet pipe 4.6, sand extraction tube 4.3, water distributor 4.4 and three
Phase separator 4.1, the water inlet pipe 4.6 add pipe 4.13 with dephosphorization agent and are connected to, and water inlet pipe 4.6 is L-shaped, and water inlet pipe 4.6 enters
Mouth is connected to overflow port B9；The vertical section of water inlet pipe 4.6 extends vertically into the inside of sand filter 4 along the water inlet side wall of sand filter 4, into
The horizontal segment of water pipe 4.6 is pierced by after water distributor 4.4 from the water outlet side wall of sand filter 4, and the outlet end of water inlet pipe 4.6 is provided with
Sand flash valve 4.10；The water inlet pipe 4.6 is located at the part in water distributor and offers apopore 4.11 (4.6 upper edge of water inlet pipe and lead
Face the apopore 4.11 that several 10~20mm of diameter are evenly distributed in 45 degree of angular direction directly), a diameter of 5~15mm of apopore 4.11；
The sand extraction tube 4.3 be vertical at the inside center of sand filter 4, the lower end of sand extraction tube 4.3 and the bottom of sand filter 4 there are
Gap；Compressed air pipe 13 is inserted into the bottom of the sand extraction tube 4.3, and the outlet of compressed air hose 13 is equipped with air nozzle
13.4,13.4 opening upwards of air nozzle and positioned at 4.3 center of sand extraction tube (using air nozzle 13.4 high-speed compressed air produce
Anger puies forward power, and the sand, sludge, sewage lifting of 4.3 bottom of sand extraction tube is upward)；Air compressor machine is configured on compressed air pipe 13
13.1, pressure gauge 13.2 and adjusting valve group 13.3；Interior reflux cone is stretched into the upper end of the sand extraction tube 4.3 after passing through water distributor 4.4
4.2, interior reflux cone 4.2 includes upper conical section and lower straighttube section, the cone angle of the upper conical section be 45 ° of upper conical sections cone mouths to
On；50~150mm of the lower straighttube segment length, the sand extraction tube 4.3 are inserted into lower straighttube section, the outer wall and lower straighttube of sand extraction tube 4.3
Gap between the inner wall of section is 5~20mm；The three phase separator 4.1 includes upper straight pipe and lower conical section, described straight
The end of pipeline section exceeds liquid level 20mm, and the washed-out sand water outlet 4.14 being connected to sand filter 4 is offered on upper straight pipe；Upper straight tube
Section internal diameter be less than sand extraction tube 4.3 internal diameter, the lower conical section Open Side Down and with it is interior reflux cone 4.2 cone mouth face cloth
It sets, and gap between the two can be adjusted by the position of three phase separator 4.1；Three phase separator 4.1 uses can up and down adjustment
Structure, by adjusting the gap between 4.1 bottom of three phase separator and interior reflux cone 4.2, control of sewage disposal amount.In the present embodiment,
The water distributor 4.4 be in rectangular pyramid structure corresponding with 4 substructure of sand filter, the two correspond to installation and between the two away from
From for 5~25mm, to ensure the continuous wash of sand, sand enters water distributor 4.4 and blocks when preventing from shutting down；The water distributor
Multihole distributor 4.12 is arranged in the big opening end of 4.4 big mouth down, water distributor 4.4, is evenly distributed on multihole distributor 4.12 multiple straight
Diameter is the apopore of 5~15mm, ensures that water outlet is uniform.
In the present invention, the equipment room 12 is arranged as：Equipment room 12 is located at the lower section of filler separate tank 3；The equipment
Between 12 both sides be equipped with dodge gate, so as to equipment installation, commissioning and maintenance etc.；The top installation of the dodge gate is scattered for divulging information
The loose-leaf of heat；Installation control cabinet 12.1, wind turbine 2.6, reflux pump 14 and corresponding pipeline valve flow meter etc. in the equipment room；Institute
Control cabinet 12.1 is stated using outdoor shape waterproof control cabinet, operating surface and container outer wall gas cylinder, is operated convenient for observation and control；It is described
Control cabinet 12.1 is built-in with PLC control system, and PLC control system is controlled automatically according to the indexs such as the liquid level of each reaction tank, DO, COD
The operation of the equipment such as system pump, wind turbine and reflux pump 14；The wind turbine 2.6 uses swinging wind turbine or high pressure Scroll-tupe wind turbine, leads to
Piping and valve are that aerobic tank 2 and sand filter 4 supply.
The operation principle of the present invention is that：Pending sewage enters the bottom of anoxic pond 1 through water supply line 5, in anoxic pond 1
Interior to spray into anoxic pond 1 through water inflow nozzle 1.1, the nitrification liquid injection direction to flow back out with reverse flow nozzle is in 90 °, and the two is lacking jointly
Eddy flow mixing is formed in oxygen pond 1, absorption and mass transfer reaction fully occurs with the denitrifying bacterium in anoxic pond 1, by sewage and reflux
The nitrate nitrogen of nitrification liquid is reduced to nitrogen removal, realizes the purpose of removing total nitrogen.The sewage on 1 upper layer of anoxic pond is flowed through overflow port A7
Enter aerobic tank 2；Jet aerator 2.2 in aerobic tank 2 is aerated, and compressed air mixes with water sharp impacts, air is cut into
Diameter reaches micron-sized micro-bubble, and under the power effect that micro-bubble rises, sewage, sludge and biologic packing material are in aeration zone
Interior rising completes the mass transfer of pollutant, biomembrane, oxygen and decomposition product in uphill process, realizes the degradation process of sewage, together
When, the ammonia nitrogen in sewage is changed into nitrate nitrogen by the nitrobacteria in biologic packing material 2.3；Sewage rises to the top of reflux plate washer
Behind portion, reaction tank sectional area becomes larger, and effluent flow rate reduces, while the kinetic energy of gas reduces, since biologic packing material density ratio water omits
Greatly, container bottom is sunk down into the recirculating zone of annular under the effect of gravity, it will by the negative pressure that aeration is formed in aeration zone
Biologic packing material, sludge and sewage push again up, complete the interior cycle of biologic packing material；Through treated the sewage warp of aerobic tank 2
Overflow is to sand filter after filler separate tank, at the same the biologic packing material in aerobic tank 2 due to proportion it is larger, under self gravitation effect
Aerobic tank 2 is slid back to along the ramped bottom surface of filler separate tank, and the sewage and nitrification liquid that suspend are refluxed pumping, flow back into anoxic
Pond 2；Sewage into sand filter mixes in water inlet pipe with dephosphorization agent, and precipitation obtained by the reaction is together with the sludge in sewage through cloth
Hydrophone is discharged into sand filter 4；Sewage is flowed up from the gap between the water distributor 4.4 and cone bottom of 4 bottom of sand filter, in sewage
Sludge and sediment are adsorbed by fine sand, filtering, are retained, and filtered clear water is overflowed from top downflow weir C10, through water outlet C15
Qualified discharge；The fine sand of sludge is adsorbed since gravity enters rectangular pyramid structure 4.8, sand filter 4 utilizes 4.3 bottom of sand extraction tube
The compressed air spray head in portion brings up the fine sand of 4 bottom of sand filter together with sewage, and air is utilized in uphill process
Agitation, sand surface contaminants are cleaned up；When sewage and fine sand rise interior reflux cone 4.2, due to the section of interior reflux cone 4.2
Become larger suddenly, flow velocity drops suddenly, and fine sand kinetic energy wink drops and slips back to sand filter 4 under the outer wall of sand extraction tube, and washed-out sand sewage is by washed-out sand
Water outlet 4.14 is discharged.When the present embodiment treated sewage, it be in anoxic pond 1 is 1.5-2 hours to recommend the residence time, aerobic tank 2
In be 4-5.5 hour, be 0.5 hour in filler separate tank 3,1 hour in sand filter 4, total residence time is small it is only necessary to 7~9
When, equipment is taken up an area and investment greatly reduces.
Finally it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
With reference to embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned
Technical solution recorded in each embodiment is modified or equivalent replacement of some of the technical features, but it is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of low-concentration organic waste water processing system, which is characterized in that it is main include the anoxic pond being sequentially communicated, aerobic tank,
The lower part of filler separate tank, sand filter and equipment room, the anoxic pond is provided with feed water inlet, and feed water inlet connects with water supply water inlet line
It is logical；The anoxic pond is connected to by overflow port A with aerobic tank；Aeration zone is equipped in the aerobic tank, the aerobic tank is covered with more
The biologic packing material in hole, biologic packing material are attached with microorganism；The filler separate tank is located on the outside of the water outlet of aerobic tank, and with it is aerobic
Pond is separated by scum board between the two, and there are gaps for the bottom of scum board and filler separate tank；The filler separate tank
Face be the inclined-plane tilted down to aerobic tank direction；The water outlet side of the filler separate tank is connected to sand filter, sand filter
Water outlet side is equipped with water outlet；The equipment room is set to the bottom of filler separate tank, and PLC control system is configured in equipment room.
2. low-concentration organic waste water processing system as described in claim 1, which is characterized in that the filler separate tank is by returning
Flow tube road is connected to the bottom of anoxic pond, and reflux pump is configured on reflux line, and the water outlet of reflux line is located in anoxic pond；
The water outlet of reflux line is provided with reverse flow nozzle, and the nitrification liquid of reflux forms eddy flow in anoxic zone under pressure.
3. low-concentration organic waste water processing system as described in claim 1, which is characterized in that the bottom of the aerobic tank is equipped with
Evacuation port B sets four pieces of reverse flow baffles in aerobic tank, and reverse flow baffle is enclosed aeration zone；The outside of reverse flow baffle and aerobic tank
Annular region between inner wall is recirculating zone；Multiple aerators are installed in the bottom of aeration zone, aerator connects with aeration manifold
It is logical；There are gaps for the bottom surface of the reverse flow baffle and aerobic tank.
4. low-concentration organic waste water processing system as described in claim 1, which is characterized in that the influent side of the sand filter is logical
It crosses overflow port B to be connected to filler separate tank, fine sand is filled in sand filter, the bottom of sand filter is equipped with sand removing hole C；The sand filter
Water outlet side setting sand filtration area overflow port C；The sand filter is built-in with water inlet pipe, sand extraction tube, water distributor and three phase separator, institute
It states water inlet pipe and adds pipe with dephosphorization agent and be connected to, the entrance of water inlet pipe is connected to overflow port B, and water inlet pipe is after water distributor from sand filter
Water outlet side wall be pierced by；The part that the water inlet pipe is located in water distributor offers apopore；The sand extraction tube is vertical at sand
There are gaps for the inside center in filter tank, the lower end of sand extraction tube and the bottom of sand filter；The lower port of the sand extraction tube is empty with compression
The outlet of feed channel；Interior reflux cone, interior reflux cone and three phase separation are stretched into the upper end of the sand extraction tube after passing through water distributor
Device is connected, and three phase separator offers the washed-out sand water outlet being connected to sand filter.
5. low-concentration organic waste water processing system as claimed in claim 4, which is characterized in that the sand filter lower part is in tetragonous
Cone structure；It is provided with evacuation port and manhole in the side of rectangular pyramid structure；The water distributor is in corresponding with sand filter lower part
Rectangular pyramid structure；The big mouth down of the water distributor, the big opening end of water distributor are arranged multihole distributor, on multihole distributor
The multiple apopores of cloth.
6. low-concentration organic waste water processing system as claimed in claim 4, which is characterized in that the interior reflux cone includes upper circle
It bores section and lower straighttube section, the cone mouth of the upper conical section is upward；The sand extraction tube is inserted into lower straighttube section, and the outer wall of sand extraction tube is under
There are gaps between the inner wall of straight pipe.
7. low-concentration organic waste water processing system as claimed in claim 6, which is characterized in that the three phase separator includes upper
Straight pipe and lower conical section, the upper end of the upper straight pipe exceed liquid level, and upper straight pipe offers washing of being connected to sand filter
Sand water outlet；The internal diameter of upper straight pipe is less than the internal diameter of sand extraction tube, and Open Side Down and is bored with interior reflux for the lower conical section
Cone mouth face arrangement.
8. low-concentration organic waste water processing system as claimed in claim 5, which is characterized in that under the water distributor and sand filter
The rectangular pyramid structure in portion corresponds to installation, and distance between the two is 5~25mm.
9. low-concentration organic waste water processing system as claimed in claim 2, which is characterized in that the bottom of the anoxic pond is equipped with
Evacuation port A；Water inflow nozzle is installed in the feed water inlet of anoxic pond；The water outlet of reflux line is located in anoxic pond, reflux line
Water outlet install reverse flow nozzle, water inflow nozzle it is parallel with reverse flow nozzle and it is front and back be staggered, the spray of water inflow nozzle and reverse flow nozzle
It is opposite to penetrate direction.
10. low-concentration organic waste water processing system as claimed in claim 2, which is characterized in that be arranged in the top of anoxic pond
The broken siphon pipe being connected to water supply line breaks the opening down of siphon pipe and the liquid level higher than anoxic pond.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622995.3A CN108793599B (en) | 2018-06-15 | 2018-06-15 | Low-concentration organic sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622995.3A CN108793599B (en) | 2018-06-15 | 2018-06-15 | Low-concentration organic sewage treatment system |
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| Publication Number | Publication Date |
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| CN108793599A true CN108793599A (en) | 2018-11-13 |
| CN108793599B CN108793599B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810622995.3A Active CN108793599B (en) | 2018-06-15 | 2018-06-15 | Low-concentration organic sewage treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110876861A (en) * | 2019-12-13 | 2020-03-13 | 中建三局第一建设工程有限责任公司 | Horizontal mud-water separator |
| CN112028245A (en) * | 2020-11-02 | 2020-12-04 | 中铁环境科技工程有限公司 | Sewage treatment device |
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| DE10120956A1 (en) * | 2000-05-03 | 2002-02-28 | Alfred Bruckhaus | Apparatus for dephosphation of surface water has gravel and sand filter with water supply above exchangeable ferrous material container and aerated tapered bottom with exchangeable iron phosphate collector |
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| CN110876861B (en) * | 2019-12-13 | 2021-11-16 | 中建三局第一建设工程有限责任公司 | Horizontal mud-water separator |
| CN112028245A (en) * | 2020-11-02 | 2020-12-04 | 中铁环境科技工程有限公司 | Sewage treatment device |
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| Publication number | Publication date |
|---|---|
| CN108793599B (en) | 2021-04-30 |
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