CN105366875B - Urban sewage treatment system - Google Patents
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- CN105366875B CN105366875B CN201510616494.0A CN201510616494A CN105366875B CN 105366875 B CN105366875 B CN 105366875B CN 201510616494 A CN201510616494 A CN 201510616494A CN 105366875 B CN105366875 B CN 105366875B
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Abstract
The invention discloses a kind of urban sewage treatment system, including sanitary sewage pretreatment route and trade effluent pretreatment route, sanitary sewage pretreatment route and trade effluent the pretreatment route is intersected in total processing route；The sanitary sewage pretreatment route includes the filtering ponds one being linked in sequence, sedimentation basin one, filtering ponds two and sedimentation basin two；The trade effluent pretreatment route includes food industry sewage disinfection treatment route in parallel, and inorganic sewage disinfection treatment route and organic sewage pre-process route；The food industry sewage disinfection treatment route is intersected in filtering ponds one with sanitary sewage pretreatment route；The inorganic sewage disinfection treatment route includes the inorganic filter pond one being linked in sequence, soda acid pond, oxidation pond, inorganic precipitation pond, inorganic filter pond two and membrane filtration pond；The industrial organic sewage pretreatment route includes organic filter pond and the abstraction pool being linked in sequence；The industrial organic sewage pretreatment route is intersected in membrane filtration pond with industrial inorganic sewage disinfection treatment route.
Description
Technical field
The present invention relates to a kind of sewage disposal system, particularly a kind of urban sewage treatment system.
Background technology
In the last few years, the rate of economic development in China city was relatively fast, the sewage for being produced in city and living and producing
Quantity is also gradually increasing, compared with developed countries, and China's treatment rate of domestic sewage is not also high, and technique has need
It is kind, manage also relatively backward, average every 1,500,000 people or so just possesses a sewage treatment plant, and also there is sewage treatment plant
Build effective investment utilization rate and processing water rate low problems up to standard.Wastewater treatment in China facility is relative to developed country
It is also very backward.
The technique of sewage disposal is more single in the prior art, main using two sections of activated sludge processes, i.e., by sewage conduct,
Sewage treatment plant is considered as a sewage disposal system, including:Self-priming jet aeration machine, lateral flow domatic inclined-plate clarifying basin, nothing
The sludge suspension type biologic packing material of support.Its concrete methods of realizing is:A sections of high load capacities, B sections of underloads, two sections of A, B is returned respectively
Stream, makes full use of the microorganism in it, it is played one's part to the full, and creates good environmental condition and is easy to what different times grew
The growth of superior microorganism population.But this processing method is to dye effect stability, but cost is higher, and clearance is relatively low,
BOD5 clearances are only that 90%, COD clearances are only 80%.
The content of the invention
The goal of the invention of the present invention is：There can be high clearance there is provided one kind for above-mentioned problem, meet
Various regions city needs, and can extensively, efficiently handle the urban sewage treatment system of all kinds of sewage.
The technical solution adopted by the present invention is as follows：
Urban sewage treatment system, including sanitary sewage pretreatment route and trade effluent pretreatment route, the life
Sewage disinfection treatment route and trade effluent pretreatment route are intersected in total processing route；The sanitary sewage pretreatment route includes
The filtering ponds one being linked in sequence, sedimentation basin one, filtering ponds two and sedimentation basin two；The trade effluent pretreatment route includes parallel connection
Food industry sewage disinfection treatment route, inorganic sewage disinfection treatment route and organic sewage pre-process route；The food industry
Sewage disinfection treatment route is intersected in filtering ponds one with sanitary sewage pretreatment route；The inorganic sewage disinfection treatment route includes suitable
The inorganic filter pond one of sequence connection, soda acid pond, oxidation pond, inorganic precipitation pond, inorganic filter pond two and membrane filtration pond；The industry has
Machine sewage disinfection treatment route includes organic filter pond and the abstraction pool being linked in sequence；Industrial organic sewage pretreatment route with
Industrial inorganic sewage disinfection treatment route is intersected in membrane filtration pond.
By adopting the above-described technical solution, sanitary sewage is different with the contaminant component of trade effluent, content is different, raw
Sewage living mainly contains N, P, and trade effluent can be divided into food industry sewage, industrial inorganic sewage and industrial organic dirt
Being substantially the same for contaminant component content and sanitary sewage in water, food industry sewage, can be carried out pre- in an identical manner
Processing；Content of beary metal is higher in industrial inorganic sewage, and poisonous and hazardous organic constituentses content is higher in organic sewage；Will be raw
Sewage living and trade effluent categorised collection, different preprocess methods are carried out for each different pollutant components, will not
After falling with pollutant removal, shared pollutant N, P are being focused on, treatment effeciency is improved, with extensive adaptability,
Cope with all sewage being likely to occur in city during production and living.
Urban sewage treatment system, total processing route includes the anaerobic pond being linked in sequence, Aerobic Pond, wetland, detection
Pond and ultraviolet sterilization pond；The sanitary sewage pretreatment route is intersected in anaerobic pond with trade effluent pretreatment route；It is described to detest
It is provided with oxygen pond in denitrifying bacterium and polyP bacteria, the Aerobic Pond and is provided with nitrifier, delivery port is provided with detection in the Aerobic Pond
Device, can detect nitrogen content and phosphorus content in water, and the Aerobic Pond is provided with to the half-duplex channel of anaerobic pond；The wetland plantation
Plant includes 26 ~ 31% typha angustifolia, 19 ~ 22% cattail, 32 ~ 40% reed and 16 ~ 23% chlorella；It is described ultraviolet to go out
Bacterium pond, can send the ultraviolet waves in the range of 200 ~ 275nm of wavelength, the μ W.s/cm2 of dosage 13000 ~ 15000.
By adopting the above-described technical solution, pollutant containing P can be effectively got rid of in the presence of polyP bacteria, in nitre
Pollutant containing N can be effectively got rid of in the presence of change bacterium and denitrifying bacterium, while delivery port is filled provided with detection in Aerobic Pond
Put, the processing of next step can be just carried out after ensureing that detection nitrogen content and phosphorus content are up to standard, is returned if not up to standard and continues this
The processing of one step, it is such to be circularly set, can efficiently it be handled repeatedly, until the qualified place for just carrying out next step of content
Reason so that by anaerobic pond and the pollutant load of the water outlet of Aerobic Pond processing in a stable scope, so that
The processing of next step will not be because content exceedes bearing capacity and causes the reduction of final process effect, it is ensured that the stabilization of processing system
Property.Plant in wetland can effectively absorb N in sewage, the pollutant such as P, and ultraviolet sterilization pond can get rid of 99% disease
Bacterium, parasite, virus etc..N, P pollutant in sewage are got rid of by bioanalysises such as nitrifier, wetlands, with environment-friendly
Feature, destruction is not resulted in surrounding environment.Traditional chemical sterilization is substituted using ultraviolet sterilization, is not only greatly improved and goes out
Bacterium rate, while will not be impacted to environment, secondary pollution is not resulted in more.
Urban sewage treatment system, the outlet of sedimentation basin two is provided with detection means, can detect that solid particle is big in filtrate
It is small；The sedimentation basin two is provided with to the half-duplex channel of filtering ponds one；Aperture plate, the grid gap of the aperture plate are provided with filtering ponds one
Size is 5 ~ 8cm；It is provided with the sedimentation basin one in flocculation agent, the sedimentation basin one provided with separation filter plate, the separation filter plate
Can be by separation of solid and liquid；Thermostat is provided with the sedimentation basin one, can maintain temperature constant in the range of 25 ~ 28 DEG C, it is described
Flocculation agent is 1 by mol ratio：1 ZnCl2 and sodium carboxymethylcellulose composition, the concentration of the flocculation agent is 25ppm；The mistake
Aperture plate is provided with filter tank two, the grid gap length of the aperture plate is 0.3 ~ 0.8cm；Provided with separation filter in the sedimentation basin two
Plate, the separation filter plate can be by separation of solid and liquid, and the sedimentation basin two is connected with fertilizer producing system.
By adopting the above-described technical solution, disposing the pollutant such as polybag, paper of bulky grain by filtering ponds one
Deng, the solid pollutant in the interior addition flocculation agent of sedimentation basin one can largely get rid of sewage, including swill, inorganic chemical
Thing etc., thermostat ensures to play a role within the scope of the optimal temperature of flocculation agent, so as to obtain optimal clearance；Filtering ponds two
Aperture plate can get rid of less solid particle, and the material, sedimentation basin two such as the flock produced under flocculation agent effect
Interior separation filter plate can get rid of more short grained solid matter, and sewage is after preceding filtering twice, and larger solid is all
Have been removed, now solid particle is less, will not cause obstruction to the aperture for separating filter plate, so as to cause separation
The reduction of efficiency, the solid matter separated by sedimentation basin two contains the chemical elements such as abundant N, P, S, is the good of manufacture fertilizer
Good raw material, solid matter is delivered into fertilizer producing system being capable of farthest twice laid.
Urban sewage treatment system, the outlet in the inorganic filter pond two is provided with detection means, can detect in filtrate containing weight
Amount of metal；The inorganic filter pond two is provided with to the half-duplex channel of oxidation pond；The inorganic filter pond one is provided with aperture plate, the grid
The grid gap length of net is 5 ~ 8cm；N (Fe2+) in ferrite process, the ferrite process/n (M2+) is used in the oxidation pond
=15；Inorganic flocculation agent is provided with the inorganic precipitation pond, the inorganic flocculation agent is 1 by mol ratio：1：0.4：1.2 shell gathers
Sugar, Na2B4O710H2O, MgSO47H2O, AlCl36H2O compositions, the concentration of the inorganic flocculation agent is 25ppm；Institute
State and filter screen is provided with inorganic filter pond two, the grid gap length of the filter screen is 0.05 ~ 0.08cm；The import in the membrane filtration pond
Pressure regulating pump is equipped with outlet, the membrane filtration pond is provided with thermostat, can maintain temperature constant in the range of 51 ~ 55 DEG C, institute
State and 50nm multi-channel industrial inorganic ceramic membranes are provided with membrane filtration pond.
By adopting the above-described technical solution, inorganic flocculation agent can effectively get rid of most heavy metal ion dirts
Thing is contaminated, 99% ion can be got rid of by membrane filtration film, the characteristics of having efficient, stable to the processing of industrial inorganic contaminant water.
Be provided with aperture plate in urban sewage treatment system, the organic filter pond, the grid gap length of the aperture plate for 5 ~
8cm；Sequential extractions are used in the abstraction pool, extractant is respectively：Petroleum ether, ethyl acetate：Petroleum ether=1:5, acetic acid second
Ester：Petroleum ether=1:1, ethyl acetate：Petroleum ether=5:1, ethyl acetate；The abstraction pool is provided with piece-rate system, can be by organic layer
Separated with water layer；The abstraction pool is connected with fertilizer producing system.
By adopting the above-described technical solution, the organic matter in industrial organically-polluted water substantially can by sequential extractions
It is removed, extractant is reclaimed and can recycled, and is added the utilization rate of resource, is reduced cost, meanwhile, extract
Organic matter after treatment can turn into system fertilizer raw material, therefore the organic matter extracted deliver to fertilizer producing system being capable of maximum limit
The twice laid of degree.
Urban sewage treatment system, the detection cell provided with respectively lead to sedimentation basin two, soda acid pond, membrane filtration pond, abstraction pool,
The individual event passage of anaerobic pond and wetland；Detection means is provided with the detection cell, size in water can be detected>0.3cm solid
The content of particle, containing heavy metal amount, phosphorus content, nitrogen content and phosphorus content.
By adopting the above-described technical solution, the treatment effect that each step is handled may determine that by the detection of detection cell, when
When the processing of a certain step is not up to standard, different return terminals are selected according to the content of pollutant, are handled again, so as to ensure finally to enter
It is up to standard to enter each pollutant load in the sewage in ultraviolet sterilization pond so that processing system is coped with produces life in city
All sewage being likely to occur during work, will not be because a certain pollutant emission is excessive and causes the drop for the treatment of effect
It is low, it is ensured that the stability of processing system.
Urban sewage treatment system, comprises the following steps：
Step one：By sanitary sewage, food industry sewage, industrial inorganic sewage and industrial organic sewage separate collection；
Step 2：Sanitary sewage flows through the aperture plate of filtering ponds one, and particle of the filtering more than 5 ~ 8cm, liquid flow to sedimentation basin
One, sedimentation basin one keeps 25 ~ 28 DEG C of constant temperature, adds the flocculation agent that concentration is 25ppm, stands 2 ~ 3d, sewage flow to filtering ponds
Two aperture plate, particle of the filtering more than 0.3 ~ 0.8cm, liquid flow to sedimentation basin two, regulation pH to 8 ~ 9 model in sedimentation basin two
In enclosing, 2 ~ 3d is stood, solid and liquid are separated, solid delivers to fertilizer producing system；Detect big in the liquid that sedimentation basin two is separated
In the content of 0.3cm particulate matter, work as granule content>During 0.2ppm, liquid flows back to filtering ponds one；Work as granule content<
During 0.2ppm, liquid flow to anaerobic pond；
Step 3：Food industry sewage flows through the aperture plate of filtering ponds one, and filtering is more than 5 ~ 8cm particle, and liquid flow to heavy
Shallow lake pond one, sedimentation basin one keeps 25 ~ 28 DEG C of constant temperature, adds the flocculation agent that concentration is 25ppm, stands 2 ~ 3d, sewage was flow to
The aperture plate in filter tank two, particle of the filtering more than 0.3 ~ 0.8cm, liquid flow to sedimentation basin two, the regulation pH to 8 ~ 9 in sedimentation basin two
In the range of, 2 ~ 3d is stood, solid and liquid are separated, solid delivers to fertilizer producing system；Detect the liquid that sedimentation basin two is separated
In be more than 0.3cm particulate matter content, work as granule content>During 0.2ppm, liquid flows back to filtering ponds one；Work as granule content<
During 0.2ppm, liquid flow to anaerobic pond；
Step 4：Industrial organic sewage stream passes through the aperture plate in organic filter tank, and particle of the filtering more than 5 ~ 8cm, liquid is flow to
It is respectively using extractant in abstraction pool, abstraction pool：Petroleum ether, ethyl acetate：Petroleum ether=1:5, ethyl acetate：Petroleum ether=1:
1, ethyl acetate：Petroleum ether=5:1, ethyl acetate is extracted, and the piece-rate system in abstraction pool separates organic layer with water layer
Open, after the organic solvent recovery of organic layer, gained solid delivers to fertilizer producing system；Water layer flow to membrane filtration pond；
Step 5：Industrial inorganic sewage stream passes through the aperture plate in inorganic filter tank one, particle of the filtering more than 5 ~ 8cm, liquid flow
To soda acid pond, in soda acid pond with Ca (OH)2Liquid is made as saturated solution, oxidation pond is flow to, ferrite is passed through in oxidation pond
Method, in n (Fe2+)/n(M2+Removed under conditions of)=15 after heavy metal ion, liquid flow to inorganic precipitation pond, adding concentration is
25ppm flocculation agent, stands 2 ~ 3d, and sewage flow to the aperture plate in inorganic filter pond two, particle of the filtering more than 0.05 ~ 0.08；Inspection
Survey in the liquid after inorganic filter pond two is filtered and contain heavy metal amount, when containing heavy metal amount>During 3ppm, liquid flows back to oxidation pond；When
Containing heavy metal amount<During 3ppm, liquid flow to membrane filtration pond；Pressure regulating pump of the sewage Jing Guo the import of membrane filtration pond, pressure is adjusted to
The constant temperature of 51 ~ 55 DEG C of holding, passes liquid through 50nm ceramic membranes, the liquid after filtering in 0.32MPa, membrane filtration pond
The pressure regulating pump exported by membrane filtration pond, is adjusted to 0.10MPa, liquid flow to anaerobic pond by pressure；
Step 5：Sewage is in anaerobic pond, in the presence of denitrifying bacterium and polyP bacteria, stands 3 ~ 5d, flow to Aerobic Pond,
In the presence of nitrifier, nitrogen content and phosphorus content in 3 ~ 4d, sewage of the detection by Aerobic Pond processing are stood, works as nitrogen content>
8ppm, phosphorus content>During 0.3ppm, liquid flows back into anaerobic pond；Work as nitrogen content<8ppm, phosphorus content<During 0.3ppm, liquid is flow to
Wetland, sewage handles 10 ~ 15d, flow to detection cell in the presence of wetland；
Step 6：Size in water body after detection cell difference detection process>The content of 0.3cm solid particle, containing heavy metal
Amount, phosphorus content, nitrogen content and phosphorus content；When the content of solid particle>During 0.2ppm, liquid flows back to filtering ponds one；When containing a huge sum of money
Category amount>During 3ppm, liquid flows back into soda acid pond, works as 3ppm>Containing heavy metal amount>During 0.05ppm, liquid flows back into membrane filtration Chi Chi；
Work as phosphorus content>During 0.02ppm, liquid flows back into abstraction pool, works as 0.02ppm>Phosphorus content>During 0.003ppm, liquid flows back into film
Filter tank；Work as nitrogen content>8ppm or phosphorus content>During 0.3ppm, liquid flows back into anaerobic pond；Work as 8ppm>Nitrogen content>0.1ppm, or
0.3ppm>Phosphorus content>During 0.1ppm, liquid flows back into wetland；Work as solid content<0.2ppm, containing heavy metal amount<
0.05ppm, phosphorus content>During 0.02ppm, nitrogen content<0.1ppm, phosphorus content<During 0.1ppm, liquid flow to ultraviolet sterilization pond；
Step 7：Ultraviolet sterilization pond, in the range of 200 ~ 275nm of wavelength, the μ W.s/cm2 of dosage 13000 ~ 15000, place
Manage and discharged after 40 ~ 60s.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, rationally effectively it is arranged, different types of sewage is pre-processed, so as to ensures in different pollutions
Good, stable treatment effect is still ensure that under thing emission behaviour.
2nd, segmented is provided with return-flow system, it is ensured that the pollutant load of the water outlet of segment processing is in a stable scope
It is interior, so that the processing of next step will not be because content exceedes bearing capacity and causes the reduction of final process effect, it is ensured that place
The stability of reason system.
3rd, by the way of physical treatment, chemical treatment and biological treatment are combined, targetedly handled, environment
Close friend, influence is not resulted on the ecosystem of surrounding, and the method in combination with processing can not only get rid of Conventional pollution,
The clearance of various pollutants is improved simultaneously, has prevented secondary pollution.
Brief description of the drawings
Fig. 1 is urban sewage treatment system schematic diagram；
Fig. 2 is the curve map that temperature influences on clearance；
Fig. 3 is the curve map that pH value influences on clearance；
Fig. 4 is the curve map that concentration influences on clearance；
Fig. 5 is the curve map that mol ratio influences on clearance；
Fig. 6 is the curve map that membrane aperture size influences on clearance；
Fig. 7 is the curve map that time of ultraviolet irradiation influences on clearances such as germ, parasite, viruses.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the object, technical solution and advantage of invention are more clearly understood, below in conjunction with drawings and Examples, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1
As shown in figure 1, urban sewage treatment system, by sanitary sewage, trade effluent separate collection, trade effluent again will food
Product trade effluent, industrial inorganic sewage and industrial organic sewage separate collection；The sanitary sewage and trade effluent of separate collection point
Not Jing Guo sanitary sewage pretreatment route and trade effluent pretreatment route pre-processed；Food industry sewage is by life
Sewage disinfection treatment route is pre-processed, and industrial inorganic sewage and industrial organic sewage are respectively through industrial inorganic sewage disinfection treatment
Route and industrial organic sewage pretreatment route are pre-processed；The sanitary sewage pretreatment route and trade effluent pretreatment
Route is intersected in total processing route, anaerobic pond that total processing route includes being linked in sequence, Aerobic Pond, wetland, detection cell and ultraviolet
Sterilize pond.
Sanitary sewage pretreatment route includes the filtering ponds one being linked in sequence, sedimentation basin one, filtering ponds two and sedimentation basin two,
The grid gap length that aperture plate in aperture plate, filtering ponds one is provided with filtering ponds one is that separation filter plate is provided with 5cm, sedimentation basin one,
Separating filter plate can be by separation of solid and liquid, and the interior grid gap length for being provided with aperture plate in aperture plate, filtering ponds two of filtering ponds two is 0.3cm,
The outlet of sedimentation basin two is provided with detection means, can detect solid particle size in filtrate, and sedimentation basin two is provided with to the list of filtering ponds one
To passage, sedimentation basin two is connected with fertilizer producing system；Sanitary sewage flows through the aperture plate of filtering ponds one, filters out the particle more than 5cm, liquid
Body, which is flow in sedimentation basin one, sedimentation basin one, is provided with thermostat, and temperature maintains 25 DEG C of scope in thermostat holding sedimentation basin one
It is interior, the flocculation agent that concentration is 25ppm is added in the sewage into sedimentation basin one, 2d is stood, flocculation agent is 1 by mol ratio：1
ZnCl2With sodium carboxymethylcellulose composition, COD (COD) material in water can be largely got rid of, including also
Immunogenic substance such as, nitrite, sulfide, ferrous salt, detergent etc., temperature, concentration, mol ratio and the removal of flocculation agent
As shown in Figures 2 to 5, the separation filter plate in sedimentation basin one separates solid, floccule etc. with liquid to the curve map of effect, separation
Liquid afterwards flow to the aperture plate of filtering ponds two, filters out the particle more than 0.3cm, and liquid flow to sedimentation basin two, stands after 2d, will
Solid and liquid are separated；It is more than 0.3cm in liquid of the detecting system detection after the separation of sedimentation basin two in sedimentation basin two
Particulate matter content, work as granule content>During 0.2ppm, liquid flows back into filtering ponds one by half-duplex channel；When particle contains
Amount<During 0.2ppm, liquid flow to anaerobic pond；The solid matter separated by sedimentation basin two is transported to fertilizer producing system, carries out fertilizer
Processing and fabricating.
Food industry sewage flows through sanitary sewage pretreatment route, carries out the pretreatment same with sanitary sewage.Including suitable
Grid in aperture plate, filtering ponds one are provided with the filtering ponds one of sequence connection, sedimentation basin one, filtering ponds two and sedimentation basin two, filtering ponds one
The grid gap length of net is 5cm, provided with separation filter plate in sedimentation basin one, and separation filter plate can be by separation of solid and liquid, in filtering ponds two
Provided with aperture plate, the grid gap length of aperture plate is 0.3cm in filtering ponds two, and the outlet of sedimentation basin two is provided with detection means, can detected
Solid particle size in filtrate, sedimentation basin two is provided with to the half-duplex channel of filtering ponds one, and sedimentation basin two is connected with fertilizer producing system；Life
Sewage flows through the aperture plate of filtering ponds one, filters out the particle more than 5cm, and liquid is flow in sedimentation basin one, sedimentation basin one provided with perseverance
Warm device, thermostat keeps temperature in sedimentation basin one to maintain in the range of 25 DEG C, and concentration is added in the sewage into sedimentation basin one
For 25ppm flocculation agent, 2d is stood, flocculation agent is 1 by mol ratio：1 ZnCl2With sodium carboxymethylcellulose composition, Neng Gou great
Amount gets rid of COD (COD) material in water, nitrite, sulfide, ferrous iron including reducing substances such as
Salt, detergent etc., the temperature of flocculation agent, concentration, mol ratio and removal effect curve map as shown in Figures 2 to 5, precipitation
Separation filter plate in pond one separates solid, floccule etc. with liquid, and the liquid after separation flow to the aperture plate of filtering ponds two, filtering
Fall to be more than 0.3cm particle, liquid flow to sedimentation basin two, stands after 2d, solid and liquid are separated；Inspection in sedimentation basin two
Examining system detection is more than the content of 0.3cm particulate matter in the liquid after the separation of sedimentation basin two, work as granule content>
During 0.2ppm, liquid flows back into filtering ponds one by half-duplex channel；Work as granule content<During 0.2ppm, liquid flow to anaerobic pond；Through
The solid matter for crossing the separation of sedimentation basin two is transported to fertilizer producing system, carries out the processing and fabricating of fertilizer.
Industrial inorganic sewage disinfection treatment route includes the inorganic filter pond one being linked in sequence, and soda acid pond, oxidation pond is inorganic heavy
Shallow lake pond, inorganic filter pond two and membrane filtration pond.The grid gap length of aperture plate is 5 ~ 8cm in inorganic filter pond one, and industrial inorganic is dirty
Current pass through the aperture plate in inorganic filter tank one, filter out after the particle more than 5 ~ 8cm, liquid flow to soda acid pond.Used in soda acid pond
Ca(OH)2Liquid is made as saturated solution, saturated solution flow to oxidation pond, ferrite process is passed through in oxidation pond, in n (Fe2+)/
n(M2+Removed under conditions of)=15 after heavy metal ion, liquid flow to inorganic precipitation pond.Sewage is at inorganic precipitation pond, into pond
The inorganic flocculation agent that concentration is 25ppm is added, inorganic flocculation agent is 1 by mol ratio：1：0.4：1.2 chitosan, Na2B4O7·
10H2O, MgSO4·7H2O, AlCl3·6H2O constitute, stand 2 ~ 3d, the inorganic flocculation agent can get rid of substantial amounts of heavy metal from
Son, sewage after inorganic flocculation agent processing, is got rid of after substantial amounts of heavy metal ion, liquid is flow in by inorganic precipitation pond
Filter screen is provided with inorganic filter pond two, inorganic filter pond two, the grid gap length of filter screen is 0.05cm, and liquid is by grid
Filtering, filters out the particle more than 0.05cm, and the outlet in inorganic filter pond two is provided with detection means, can detect in filtrate containing a huge sum of money
Category amount, inorganic filter pond two is provided with to the half-duplex channel of oxidation pond, after detection means detection is filtered by inorganic filter pond two
Contain heavy metal amount in liquid, when containing heavy metal amount>During 3ppm, liquid flows back to oxidation pond；When containing heavy metal amount<During 3ppm, liquid
It flow to membrane filtration pond.
The inlet and outlet in membrane filtration pond is equipped with pressure regulating pump, and pressure regulating pump of the sewage Jing Guo the import of membrane filtration pond adjusts pressure
For 0.32MPa, membrane filtration pond is provided with thermostat, can maintain temperature constant in the range of 51 DEG C, many provided with 50nm in membrane filtration pond
Passage industrial inorganic ceramic membrane, sewage can further remove heavy metal ion compound and polymerization after inorganic ceramic membrane
Influence of the temperature to clearance is as shown in fig. 6, the liquid after filtering passes through film in thing, the pore size of inorganic ceramic membrane and pond
The pressure regulating pump of filter tank outlet, is adjusted to 0.10MPa, liquid flow to anaerobic pond by pressure.
Industrial organic sewage pretreatment route includes organic filter pond and the abstraction pool being linked in sequence, and industrial organic sewage is pre-
Processing route is intersected in membrane filtration pond with industrial inorganic sewage disinfection treatment route.Aperture plate, organic filter pond are provided with organic filter pond
The grid gap length of interior aperture plate is 5cm, and sewage is by the aperture plate in organic filter pond, particle of the filtering more than 5cm.After filtering
Sewage flow to abstraction pool, in abstraction pool pass through sequential extractions, be respectively using extractant：Petroleum ether, ethyl acetate：Stone
Oily ether=1:5, ethyl acetate：Petroleum ether=1:1, ethyl acetate：Petroleum ether=5:1, ethyl acetate is extracted, and abstraction pool is provided with
Piece-rate system, can separate organic layer with water layer, after separating, and after the organic solvent recovery of organic layer, gained solid is delivered to
Fertilizer producing system；Water layer flow to membrane filtration pond.
Denitrifying bacterium and polyP bacteria are provided with anaerobic pond, sewage is in anaerobic pond, in the effect of denitrifying bacterium and polyP bacteria
Under, 3d is stood, ammonolysis craft can be turned into nitrogen by denitrifying bacterium, then is released back into air, and reaction equation is as follows：
2 NO3 − + 10 e− + 12 H+ → N2 + 6 H2O
PolyP bacteria is gone out after can phosphorus be assembled from water, and the sewage handled by denitrifying bacterium and polyP bacteria flow to aerobic
Pond.Nitrifier is provided with Aerobic Pond, ammoxidation can be nitrous acid by nitrifier, and it is nitric acid, reaction equation to retell nitrite-oxidizing
It is as follows：
2NH4 ++3O2→2NO2 -+4H++2H2O
2NO2 -+O2→2NO3 -
Delivery port is provided with detection means in Aerobic Pond, can detect nitrogen content and phosphorus content in water, and Aerobic Pond is provided with to anaerobism
Nitrogen content and phosphorus content in the half-duplex channel in pond, sewage of the detection means detection by Aerobic Pond processing, work as nitrogen content>8ppm,
Phosphorus content>During 0.3ppm, liquid flows back into anaerobic pond by half-duplex channel；Work as nitrogen content<8ppm, phosphorus content<During 0.3ppm, liquid
Body flow to wetland.
The plant of wetland plantation includes 26% typha angustifolia, 22% cattail, 32% reed and 20% chlorella, these
Plant can effectively remove carbonaceous material, nitrogen substance and phosphorus containg substances in water removal, and sewage is in the presence of wetland, processing
10d, flow to detection cell.
Detection cell leads to provided with the individual event for respectively leading to sedimentation basin two, soda acid pond, membrane filtration pond, abstraction pool, anaerobic pond and wetland
Road；Detection means is provided with the detection cell, size in water can be detected>The content of 0.3cm solid particle, containing heavy metal
Amount, phosphorus content, nitrogen content and phosphorus content.The size in water body after the sewage of multi step strategy distinguishes detection process in detection cell
>The content of 0.3cm solid particle, containing heavy metal amount, phosphorus content, nitrogen content and phosphorus content；When the content of solid particle>
During 0.2ppm, liquid flows back to filtering ponds one；When containing heavy metal amount>During 3ppm, liquid flows back into soda acid pond, works as 3ppm>Containing a huge sum of money
Category amount>During 0.05ppm, liquid flows back into membrane filtration Chi Chi；Work as phosphorus content>During 0.02ppm, liquid flows back into abstraction pool, when
0.02ppm>Phosphorus content>During 0.003ppm, liquid flows back into membrane filtration pond；Work as nitrogen content>8ppm or phosphorus content>During 0.3ppm, liquid
Body flows back into anaerobic pond；Work as 8ppm>Nitrogen content>0.1ppm, or 0.3ppm>Phosphorus content>During 0.1ppm, liquid flows back into wetland；
Work as solid content<0.2ppm, containing heavy metal amount<0.05ppm, phosphorus content<During 0.02ppm, nitrogen content<0.1ppm, it is phosphorous
Amount<During 0.1ppm, liquid flow to ultraviolet sterilization pond.
Ultraviolet sterilization pond, can send wavelength 200nm, the μ W.s/cm of dosage 130002In the range of ultraviolet waves.At multistep
Water after reason is in wavelength 200nm, the μ W.s/cm of dosage 130002In the range of, it can eliminate 99% germ, parasitism after processing 40s
Worm, virus etc., the time is to the influence curve of clearance as shown in fig. 7, the water after multi step strategy can be discharged.
Embodiment 2
As shown in figure 1, urban sewage treatment system, by sanitary sewage, trade effluent separate collection, trade effluent again will food
Product trade effluent, industrial inorganic sewage and industrial organic sewage separate collection；The sanitary sewage and trade effluent of separate collection point
Not Jing Guo sanitary sewage pretreatment route and trade effluent pretreatment route pre-processed；Food industry sewage is by life
Sewage disinfection treatment route is pre-processed, and industrial inorganic sewage and industrial organic sewage are respectively through industrial inorganic sewage disinfection treatment
Route and industrial organic sewage pretreatment route are pre-processed；The sanitary sewage pretreatment route and trade effluent pretreatment
Route is intersected in total processing route, anaerobic pond that total processing route includes being linked in sequence, Aerobic Pond, wetland, detection cell and ultraviolet
Sterilize pond.
Sanitary sewage pretreatment route includes the filtering ponds one being linked in sequence, sedimentation basin one, filtering ponds two and sedimentation basin two,
The grid gap length that aperture plate in aperture plate, filtering ponds one is provided with filtering ponds one is that separation filter plate is provided with 8cm, sedimentation basin one,
Separating filter plate can be by separation of solid and liquid, and the interior grid gap length for being provided with aperture plate in aperture plate, filtering ponds two of filtering ponds two is 0.8cm,
The outlet of sedimentation basin two is provided with detection means, can detect solid particle size in filtrate, and sedimentation basin two is provided with to the list of filtering ponds one
To passage, sedimentation basin two is connected with fertilizer producing system；Sanitary sewage flows through the aperture plate of filtering ponds one, filters out the particle more than 8cm, liquid
Body, which is flow in sedimentation basin one, sedimentation basin one, is provided with thermostat, and temperature maintains 28 DEG C of scope in thermostat holding sedimentation basin one
It is interior, the flocculation agent that concentration is 25ppm is added in the sewage into sedimentation basin one, 3d is stood, flocculation agent is 1 by mol ratio：1
ZnCl2With sodium carboxymethylcellulose composition, COD (COD) material in water can be largely got rid of, including also
Immunogenic substance such as, nitrite, sulfide, ferrous salt, detergent etc., separation filter plate in sedimentation basin one is by solid, floccule
Separated Deng with liquid, the liquid after separation flow to the aperture plate of filtering ponds two, filter out the particle more than 0.8cm, liquid flow to heavy
Shallow lake pond two, stands after 3d, solid and liquid is separated；Detecting system detection in sedimentation basin two is after the separation of sedimentation basin two
Liquid in be more than 0.3cm particulate matter content, work as granule content>During 0.2ppm, liquid is flow back into by half-duplex channel
Filtering ponds one；Work as granule content<During 0.2ppm, liquid flow to anaerobic pond；The solid matter separated by sedimentation basin two is transported to
Fertilizer producing system, carries out the processing and fabricating of fertilizer.
Food industry sewage flows through sanitary sewage pretreatment route, carries out the pretreatment same with sanitary sewage.Including suitable
Grid in aperture plate, filtering ponds one are provided with the filtering ponds one of sequence connection, sedimentation basin one, filtering ponds two and sedimentation basin two, filtering ponds one
The grid gap length of net is 8cm, provided with separation filter plate in sedimentation basin one, and separation filter plate can be by separation of solid and liquid, in filtering ponds two
Provided with aperture plate, the grid gap length of aperture plate is 0.8cm in filtering ponds two, and the outlet of sedimentation basin two is provided with detection means, can detected
Solid particle size in filtrate, sedimentation basin two is provided with to the half-duplex channel of filtering ponds one, and sedimentation basin two is connected with fertilizer producing system；Life
Sewage flows through the aperture plate of filtering ponds one, filters out the particle more than 8cm, and liquid is flow in sedimentation basin one, sedimentation basin one provided with perseverance
Warm device, thermostat keeps temperature in sedimentation basin one to maintain in the range of 28 DEG C, and concentration is added in the sewage into sedimentation basin one
For 25ppm flocculation agent, 3d is stood, flocculation agent is 1 by mol ratio：1 ZnCl2With sodium carboxymethylcellulose composition, Neng Gou great
Amount gets rid of COD (COD) material in water, nitrite, sulfide, ferrous iron including reducing substances such as
Separation filter plate in salt, detergent etc., sedimentation basin one separates solid, floccule etc. with liquid, and the liquid after separation was flow to
The aperture plate in filter tank two, filters out the particle more than 0.8cm, and liquid flow to sedimentation basin two, stands after 3d, and solid and liquid are separated
Open；Detecting system in sedimentation basin two detects containing for the particulate matter for being more than 0.3cm in the liquid after the separation of sedimentation basin two
Amount, works as granule content>During 0.2ppm, liquid flows back into filtering ponds one by half-duplex channel；Work as granule content<During 0.2ppm, liquid
Body flow to anaerobic pond；The solid matter separated by sedimentation basin two is transported to fertilizer producing system, carries out the processing and fabricating of fertilizer.
Industrial inorganic sewage disinfection treatment route includes the inorganic filter pond one being linked in sequence, and soda acid pond, oxidation pond is inorganic heavy
Shallow lake pond, inorganic filter pond two and membrane filtration pond.The grid gap length of aperture plate is 8cm, industrial inorganic sewage in inorganic filter pond one
Stream is filtered out after the particle more than 8cm, liquid flow to soda acid pond by the aperture plate in inorganic filter tank one.Ca is used in soda acid pond
(OH)2Liquid is made as saturated solution, saturated solution flow to oxidation pond, ferrite process is passed through in oxidation pond, in n (Fe2+)/n
(M2+Removed under conditions of)=15 after heavy metal ion, liquid flow to inorganic precipitation pond.Sewage is at inorganic precipitation pond, into pond
The inorganic flocculation agent that concentration is 25ppm is added, inorganic flocculation agent is 1 by mol ratio：1：0.4：1.2 chitosan, Na2B4O7·
10H2O, MgSO4·7H2O, AlCl3·6H2O constitute, stand 3d, the inorganic flocculation agent can get rid of substantial amounts of heavy metal from
Son, sewage after inorganic flocculation agent processing, is got rid of after substantial amounts of heavy metal ion, liquid is flow in by inorganic precipitation pond
Filter screen is provided with inorganic filter pond two, inorganic filter pond two, the grid gap length of filter screen is 0.08cm, and liquid is by grid
Filtering, filters out the particle more than 0.08cm, and the outlet in inorganic filter pond two is provided with detection means, can detect in filtrate containing a huge sum of money
Category amount, inorganic filter pond two is provided with to the half-duplex channel of oxidation pond, after detection means detection is filtered by inorganic filter pond two
Contain heavy metal amount in liquid, when containing heavy metal amount>During 3ppm, liquid flows back to oxidation pond；When containing heavy metal amount<During 3ppm, liquid
It flow to membrane filtration pond.
The inlet and outlet in membrane filtration pond is equipped with pressure regulating pump, and pressure regulating pump of the sewage Jing Guo the import of membrane filtration pond adjusts pressure
For 0.32MPa, membrane filtration pond is provided with thermostat, can maintain temperature constant in the range of 55 DEG C, many provided with 50nm in membrane filtration pond
Passage industrial inorganic ceramic membrane, sewage can further remove heavy metal ion compound and polymerization after inorganic ceramic membrane
Thing, the liquid after filtering passes through the pressure regulating pump that membrane filtration pond is exported, and pressure is adjusted into 0.10MPa, liquid flow to anaerobic pond.
Industrial organic sewage pretreatment route includes organic filter pond and the abstraction pool being linked in sequence, and industrial organic sewage is pre-
Processing route is intersected in membrane filtration pond with industrial inorganic sewage disinfection treatment route.Aperture plate, organic filter pond are provided with organic filter pond
The grid gap length of interior aperture plate is 8cm, and sewage is by the aperture plate in organic filter pond, particle of the filtering more than 8cm.After filtering
Sewage flow to abstraction pool, in abstraction pool pass through sequential extractions, be respectively using extractant：Petroleum ether, ethyl acetate：Stone
Oily ether=1:5, ethyl acetate：Petroleum ether=1:1, ethyl acetate：Petroleum ether=5:1, ethyl acetate is extracted, and abstraction pool is provided with
Piece-rate system, can separate organic layer with water layer, after separating, and after the organic solvent recovery of organic layer, gained solid is delivered to
Fertilizer producing system；Water layer flow to membrane filtration pond.
Denitrifying bacterium and polyP bacteria are provided with anaerobic pond, sewage is in anaerobic pond, in the effect of denitrifying bacterium and polyP bacteria
Under, 5d is stood, ammonolysis craft can be turned into nitrogen by denitrifying bacterium, then is released back into air, and reaction equation is as follows：
2 NO3 − + 10 e− + 12 H+ → N2 + 6 H2O
PolyP bacteria is gone out after can phosphorus be assembled from water, and the sewage handled by denitrifying bacterium and polyP bacteria flow to aerobic
Pond.Nitrifier is provided with Aerobic Pond, ammoxidation can be nitrous acid by nitrifier, and it is nitric acid, reaction equation to retell nitrite-oxidizing
It is as follows：
2NH4 ++3O2→2NO2 -+4H++2H2O
2NO2 -+O2→2NO3 -
Delivery port is provided with detection means in Aerobic Pond, can detect nitrogen content and phosphorus content in water, and Aerobic Pond is provided with to anaerobism
Nitrogen content and phosphorus content in the half-duplex channel in pond, sewage of the detection means detection by Aerobic Pond processing, work as nitrogen content>8ppm,
Phosphorus content>During 0.3ppm, liquid flows back into anaerobic pond by half-duplex channel；Work as nitrogen content<8ppm, phosphorus content<During 0.3ppm, liquid
Body flow to wetland.
The plant of wetland plantation includes 26% typha angustifolia, 19% cattail, 32% reed and 23% chlorella, these
Plant can effectively remove carbonaceous material, nitrogen substance and phosphorus containg substances in water removal, and sewage is in the presence of wetland, processing
15d, flow to detection cell.
Detection cell leads to provided with the individual event for respectively leading to sedimentation basin two, soda acid pond, membrane filtration pond, abstraction pool, anaerobic pond and wetland
Road；Detection means is provided with the detection cell, size in water can be detected>The content of 0.3cm solid particle, containing heavy metal
Amount, phosphorus content, nitrogen content and phosphorus content.The size in water body after the sewage of multi step strategy distinguishes detection process in detection cell
>The content of 0.3cm solid particle, containing heavy metal amount, phosphorus content, nitrogen content and phosphorus content；When the content of solid particle>
During 0.2ppm, liquid flows back to filtering ponds one；When containing heavy metal amount>During 3ppm, liquid flows back into soda acid pond, works as 3ppm>Containing a huge sum of money
Category amount>During 0.05ppm, liquid flows back into membrane filtration Chi Chi；Work as phosphorus content>During 0.02ppm, liquid flows back into abstraction pool, when
0.02ppm>Phosphorus content>During 0.003ppm, liquid flows back into membrane filtration pond；Work as nitrogen content>8ppm or phosphorus content>During 0.3ppm, liquid
Body flows back into anaerobic pond；Work as 8ppm>Nitrogen content>0.1ppm, or 0.3ppm>Phosphorus content>During 0.1ppm, liquid flows back into wetland；
Work as solid content<0.2ppm, containing heavy metal amount<0.05ppm, phosphorus content<During 0.02ppm, nitrogen content<0.1ppm, it is phosphorous
Amount<During 0.1ppm, liquid flow to ultraviolet sterilization pond.
Ultraviolet sterilization pond, can send wavelength 275nm, the μ W.s/cm of dosage 150002In the range of ultraviolet waves.At multistep
Water after reason is in wavelength 275nm, the μ W.s/cm of dosage 150002In the range of, it can eliminate 99% germ, parasitism after processing 60s
Worm, virus etc., the water after multi step strategy can be discharged.
Embodiment 3
As shown in figure 1, urban sewage treatment system, by sanitary sewage, trade effluent separate collection, trade effluent again will food
Product trade effluent, industrial inorganic sewage and industrial organic sewage separate collection；The sanitary sewage and trade effluent of separate collection point
Not Jing Guo sanitary sewage pretreatment route and trade effluent pretreatment route pre-processed；Food industry sewage is by life
Sewage disinfection treatment route is pre-processed, and industrial inorganic sewage and industrial organic sewage are respectively through industrial inorganic sewage disinfection treatment
Route and industrial organic sewage pretreatment route are pre-processed；The sanitary sewage pretreatment route and trade effluent pretreatment
Route is intersected in total processing route, anaerobic pond that total processing route includes being linked in sequence, Aerobic Pond, wetland, detection cell and ultraviolet
Sterilize pond.
Sanitary sewage pretreatment route includes the filtering ponds one being linked in sequence, sedimentation basin one, filtering ponds two and sedimentation basin two,
The grid gap length that aperture plate in aperture plate, filtering ponds one is provided with filtering ponds one is that separation filter plate is provided with 7cm, sedimentation basin one,
Separating filter plate can be by separation of solid and liquid, and the interior grid gap length for being provided with aperture plate in aperture plate, filtering ponds two of filtering ponds two is 0.5cm,
The outlet of sedimentation basin two is provided with detection means, can detect solid particle size in filtrate, and sedimentation basin two is provided with to the list of filtering ponds one
To passage, sedimentation basin two is connected with fertilizer producing system；Sanitary sewage flows through the aperture plate of filtering ponds one, filters out the particle more than 7cm, liquid
Body, which is flow in sedimentation basin one, sedimentation basin one, is provided with thermostat, and temperature maintains 26 DEG C of scope in thermostat holding sedimentation basin one
It is interior, the flocculation agent that concentration is 25ppm is added in the sewage into sedimentation basin one, 2.5d is stood, flocculation agent is 1 by mol ratio：1
ZnCl2With sodium carboxymethylcellulose composition, COD (COD) material in water can be largely got rid of, including also
Immunogenic substance such as, nitrite, sulfide, ferrous salt, detergent etc., separation filter plate in sedimentation basin one is by solid, floccule
Separated Deng with liquid, the liquid after separation flow to the aperture plate of filtering ponds two, filter out the particle more than 0.5cm, liquid flow to heavy
Shallow lake pond two, stands after 2.5d, solid and liquid is separated；Detecting system detection in sedimentation basin two is separated by sedimentation basin two
The content of particulate matter in liquid afterwards more than 0.3cm, works as granule content>During 0.2ppm, liquid is flowed back to by half-duplex channel
To filtering ponds one；Work as granule content<During 0.2ppm, liquid flow to anaerobic pond；The solid matter conveying separated by sedimentation basin two
To fertilizer producing system, the processing and fabricating of fertilizer is carried out.
Food industry sewage flows through sanitary sewage pretreatment route, carries out the pretreatment same with sanitary sewage.Including suitable
Grid in aperture plate, filtering ponds one are provided with the filtering ponds one of sequence connection, sedimentation basin one, filtering ponds two and sedimentation basin two, filtering ponds one
The grid gap length of net is 7cm, provided with separation filter plate in sedimentation basin one, and separation filter plate can be by separation of solid and liquid, in filtering ponds two
Provided with aperture plate, the grid gap length of aperture plate is 0.5cm in filtering ponds two, and the outlet of sedimentation basin two is provided with detection means, can detected
Solid particle size in filtrate, sedimentation basin two is provided with to the half-duplex channel of filtering ponds one, and sedimentation basin two is connected with fertilizer producing system；Life
Sewage flows through the aperture plate of filtering ponds one, filters out the particle more than 7cm, and liquid is flow in sedimentation basin one, sedimentation basin one provided with perseverance
Warm device, thermostat keeps temperature in sedimentation basin one to maintain in the range of 26 DEG C, and concentration is added in the sewage into sedimentation basin one
For 25ppm flocculation agent, 2.5d is stood, flocculation agent is 1 by mol ratio：1 ZnCl2Constituted with sodium carboxymethylcellulose, can
A large amount of COD (COD) materials got rid of in water, including reducing substances such as, nitrite, sulfide, ferrous iron
Separation filter plate in salt, detergent etc., sedimentation basin one separates solid, floccule etc. with liquid, and the liquid after separation was flow to
The aperture plate in filter tank two, filters out the particle more than 0.5cm, and liquid flow to sedimentation basin two, stands after 2.5d, by solid and liquid point
Leave；It is more than 0.3cm particulate matter in liquid of the detecting system detection after the separation of sedimentation basin two in sedimentation basin two
Content, works as granule content>During 0.2ppm, liquid flows back into filtering ponds one by half-duplex channel；Work as granule content<During 0.2ppm,
Liquid flow to anaerobic pond；The solid matter separated by sedimentation basin two is transported to fertilizer producing system, carries out the processing and fabricating of fertilizer.
Industrial inorganic sewage disinfection treatment route includes the inorganic filter pond one being linked in sequence, and soda acid pond, oxidation pond is inorganic heavy
Shallow lake pond, inorganic filter pond two and membrane filtration pond.The grid gap length of aperture plate is 7cm, industrial inorganic sewage in inorganic filter pond one
Stream is filtered out after the particle more than 7cm, liquid flow to soda acid pond by the aperture plate in inorganic filter tank one.Ca is used in soda acid pond
(OH)2Liquid is made as saturated solution, saturated solution flow to oxidation pond, ferrite process is passed through in oxidation pond, in n (Fe2+)/n
(M2+Removed under conditions of)=15 after heavy metal ion, liquid flow to inorganic precipitation pond.Sewage is at inorganic precipitation pond, into pond
The inorganic flocculation agent that concentration is 25ppm is added, inorganic flocculation agent is 1 by mol ratio：1：0.4：1.2 chitosan, Na2B4O7·
10H2O, MgSO4·7H2O, AlCl3·6H2O constitute, stand 2.5d, the inorganic flocculation agent can get rid of substantial amounts of heavy metal from
Son, sewage after inorganic flocculation agent processing, is got rid of after substantial amounts of heavy metal ion, liquid is flow in by inorganic precipitation pond
Filter screen is provided with inorganic filter pond two, inorganic filter pond two, the grid gap length of filter screen is 0.07cm, and liquid is by grid
Filtering, filters out the particle more than 0.07cm, and the outlet in inorganic filter pond two is provided with detection means, can detect in filtrate containing a huge sum of money
Category amount, inorganic filter pond two is provided with to the half-duplex channel of oxidation pond, after detection means detection is filtered by inorganic filter pond two
Contain heavy metal amount in liquid, when containing heavy metal amount>During 3ppm, liquid flows back to oxidation pond；When containing heavy metal amount<During 3ppm, liquid
It flow to membrane filtration pond.
The inlet and outlet in membrane filtration pond is equipped with pressure regulating pump, and pressure regulating pump of the sewage Jing Guo the import of membrane filtration pond adjusts pressure
For 0.32MPa, membrane filtration pond is provided with thermostat, can maintain temperature constant in the range of 53 DEG C, many provided with 50nm in membrane filtration pond
Passage industrial inorganic ceramic membrane, sewage can further remove heavy metal ion compound and polymerization after inorganic ceramic membrane
Thing, the liquid after filtering passes through the pressure regulating pump that membrane filtration pond is exported, and pressure is adjusted into 0.10MPa, liquid flow to anaerobic pond.
Industrial organic sewage pretreatment route includes organic filter pond and the abstraction pool being linked in sequence, and industrial organic sewage is pre-
Processing route is intersected in membrane filtration pond with industrial inorganic sewage disinfection treatment route.Aperture plate, organic filter pond are provided with organic filter pond
The grid gap length of interior aperture plate is 7cm, and sewage is by the aperture plate in organic filter pond, particle of the filtering more than 7cm.After filtering
Sewage flow to abstraction pool, in abstraction pool pass through sequential extractions, be respectively using extractant：Petroleum ether, ethyl acetate：Stone
Oily ether=1:5, ethyl acetate：Petroleum ether=1:1, ethyl acetate：Petroleum ether=5:1, ethyl acetate is extracted, and abstraction pool is provided with
Piece-rate system, can separate organic layer with water layer, after separating, and after the organic solvent recovery of organic layer, gained solid is delivered to
Fertilizer producing system；Water layer flow to membrane filtration pond.
Denitrifying bacterium and polyP bacteria are provided with anaerobic pond, sewage is in anaerobic pond, in the effect of denitrifying bacterium and polyP bacteria
Under, 4d is stood, ammonolysis craft can be turned into nitrogen by denitrifying bacterium, then is released back into air, and reaction equation is as follows：
2 NO3 − + 10 e− + 12 H+ → N2 + 6 H2O
PolyP bacteria is gone out after can phosphorus be assembled from water, and the sewage handled by denitrifying bacterium and polyP bacteria flow to aerobic
Pond.Nitrifier is provided with Aerobic Pond, ammoxidation can be nitrous acid by nitrifier, and it is nitric acid, reaction equation to retell nitrite-oxidizing
It is as follows：
2NH4 ++3O2→2NO2 -+4H++2H2O
2NO2 -+O2→2NO3 -
Delivery port is provided with detection means in Aerobic Pond, can detect nitrogen content and phosphorus content in water, and Aerobic Pond is provided with to anaerobism
Nitrogen content and phosphorus content in the half-duplex channel in pond, sewage of the detection means detection by Aerobic Pond processing, work as nitrogen content>8ppm,
Phosphorus content>During 0.3ppm, liquid flows back into anaerobic pond by half-duplex channel；Work as nitrogen content<8ppm, phosphorus content<During 0.3ppm, liquid
Body flow to wetland.
The plant of wetland plantation includes 31% typha angustifolia, 20% cattail, 33% reed and 16% chlorella, these
Plant can effectively remove carbonaceous material, nitrogen substance and phosphorus containg substances in water removal, and sewage is in the presence of wetland, processing
13d, flow to detection cell.
Detection cell leads to provided with the individual event for respectively leading to sedimentation basin two, soda acid pond, membrane filtration pond, abstraction pool, anaerobic pond and wetland
Road；Detection means is provided with the detection cell, size in water can be detected>The content of 0.3cm solid particle, containing heavy metal
Amount, phosphorus content, nitrogen content and phosphorus content.The size in water body after the sewage of multi step strategy distinguishes detection process in detection cell
>The content of 0.3cm solid particle, containing heavy metal amount, phosphorus content, nitrogen content and phosphorus content；When the content of solid particle>
During 0.2ppm, liquid flows back to filtering ponds one；When containing heavy metal amount>During 3ppm, liquid flows back into soda acid pond, works as 3ppm>Containing a huge sum of money
Category amount>During 0.05ppm, liquid flows back into membrane filtration Chi Chi；Work as phosphorus content>During 0.02ppm, liquid flows back into abstraction pool, when
0.02ppm>Phosphorus content>During 0.003ppm, liquid flows back into membrane filtration pond；Work as nitrogen content>8ppm or phosphorus content>During 0.3ppm, liquid
Body flows back into anaerobic pond；Work as 8ppm>Nitrogen content>0.1ppm, or 0.3ppm>Phosphorus content>During 0.1ppm, liquid flows back into wetland；
Work as solid content<0.2ppm, containing heavy metal amount<0.05ppm, phosphorus content<During 0.02ppm, nitrogen content<0.1ppm, it is phosphorous
Amount<During 0.1ppm, liquid flow to ultraviolet sterilization pond.
Ultraviolet sterilization pond, can send wavelength 255nm, the μ W.s/cm of dosage 140002In the range of ultraviolet waves.At multistep
Water after reason is in wavelength 255nm, the μ W.s/cm of dosage 140002In the range of, it can eliminate 99% germ, parasitism after processing 50s
Worm, virus etc., the water after multi step strategy can be discharged.
Embodiment 4
The plant of wetland plantation includes 30% typha angustifolia, 21% cattail, 33% reed and 16% chlorella.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. urban sewage treatment system, it is characterised in that：Route and trade effluent pretreatment route are pre-processed including sanitary sewage,
Sanitary sewage pretreatment route and trade effluent the pretreatment route is intersected in total processing route；The sanitary sewage pretreatment
Route includes the filtering ponds one being linked in sequence, sedimentation basin one, filtering ponds two and sedimentation basin two；The trade effluent pre-processes route
Including food industry sewage disinfection treatment route in parallel, inorganic sewage disinfection treatment route and organic sewage pre-process route；It is described
Food industry sewage disinfection treatment route is intersected in filtering ponds one with sanitary sewage pretreatment route；The inorganic sewage disinfection treatment road
Line includes the inorganic filter pond one being linked in sequence, soda acid pond, oxidation pond, inorganic precipitation pond, inorganic filter pond two and membrane filtration pond；Institute
State organic filter pond and abstraction pool that industrial organic sewage pretreatment route includes being linked in sequence；The industrial organic sewage is located in advance
Line of reasoning line is intersected in membrane filtration pond with industrial inorganic sewage disinfection treatment route；Total processing route includes the anaerobism being linked in sequence
Pond, Aerobic Pond, wetland, detection cell and ultraviolet sterilization pond；The sanitary sewage pretreatment route and inorganic sewage disinfection treatment route
It is intersected in anaerobic pond；It is provided with the anaerobic pond in denitrifying bacterium and polyP bacteria, the Aerobic Pond and is provided with nitrifier, it is described aerobic
Delivery port is provided with detection means in pond, can detect nitrogen content and phosphorus content in water, and the Aerobic Pond is provided with unidirectional to anaerobic pond
Passage；The plant of the wetland plantation includes 26 ~ 31% typha angustifolia, 19 ~ 22% cattail, 32 ~ 40% reed and 16 ~ 23%
Chlorella；The ultraviolet sterilization pond, can send 200 ~ 275nm of wavelength, the μ W.s/cm of dosage 13000 ~ 150002In the range of purple
External wave；The urban sewage treatment system also include automatic control system, the automatic control system include first detection module,
Second detection module, the 3rd detection module, the 4th detection module, heating module, voltage regulating module, filter material add module, magnetic valve
And PLC, the magnetic valve is at each feeder connection, and the first detection module includes being located at sedimentation basin one, inorganic precipitation
Pond and the temperature monitor in membrane filtration pond, for detecting the temperature value of sewage, and are separately converted to data signal 101 and are transferred to PLC；
Second detection module includes the PH detectors located at sedimentation basin two, for detecting the pH value of sewage, and is converted into digital letter
Numbers 201 are transferred to PLC;3rd detection module includes the particle detector located at sedimentation basin two and inorganic filter pond two, good
The nitrogen content detector and phosphorus content detector in oxygen pond, and the detection of the particle detector of detection cell, heavy metal detector, phosphorus content
Instrument, nitrogen content detector and phosphorus content detector, for detecting the granule content CK in sewage, content of beary metal CZ, phosphorus content
CC, nitrogen content CN and phosphorus content CP, and be converted into data signal 301,302,303,304 and 305 and be transferred to PLC；Described 4th
Detection module includes the pressure detection module located at membrane filtration pond, for the pressure in detection cell, and is converted into data signal 401 and passes
It is handed to PLC;The PLC respectively with first detection module, the second detection module, the 3rd detection module, the 4th detection module, heating
Module, voltage regulating module, filter material add module are connected with magnetic valve；For receiving data signal 101, when sedimentation basin one or inorganic heavy
The temperature value in shallow lake pond be less than 25 DEG C, or membrane filtration pond temperature value be less than 51 DEG C when, to heating module transmission perform signal 111；When
Sedimentation basin one or the temperature value in inorganic precipitation pond are more than 28 DEG C, or the temperature value in membrane filtration pond is when being less than 55 DEG C, is passed to heating module
Pass execution signal 112；Data signal 201 is received, when its pH value is less than 8 or more than 9, letter is performed to the transmission of filter material add module
Numbers 211 or 212；Data signal 301,302,303,304 and 305 is received, after judgement and calculating, is transmitted to corresponding magnetic valve
Perform signal 311,312 ... 322；Data signal 401 is received, signal 401 or 402 is performed to voltage regulating module transmission；
The heating module, is received and performs signal 111, and the water in sedimentation basin one or inorganic precipitation pond is heated into 25 DEG C, or will
Water in membrane filtration pond is heated to 51 DEG C；Receive and perform signal 112, stop heating；The filter material add module, receives and performs signal
211, then add the alkaline filtering material of predetermined close；Receive and perform signal 212, then add the acid filter material of predetermined close；The phase
Answer magnetic valve to receive corresponding execution signal, then open its valve；The voltage regulating module include located at membrane filtration Chi Jinkouchu and
The pressure regulating pump in exit, performs signal 401 for receiving, pressure at import is adjusted into 0.32MPa, 50nm is passed liquid through many
Passage inorganic ceramic membrane, receives and performs signal 402, exit pressure is adjusted into 0.10MPa.
2. urban sewage treatment system as claimed in claim 1, it is characterised in that：The outlet of sedimentation basin two is provided with detection dress
Put, solid particle size in filtrate can be detected；The sedimentation basin two is provided with to the half-duplex channel of filtering ponds one；Set in filtering ponds one
There is aperture plate, the grid gap length of the aperture plate is 5 ~ 8cm；It is provided with the sedimentation basin one in flocculation agent, the sedimentation basin one
Provided with separation filter plate, the separation filter plate can be by separation of solid and liquid；Thermostat is provided with the sedimentation basin one, temperature can be maintained permanent
It is scheduled in the range of 25 ~ 28 DEG C, the flocculation agent is 1 by mol ratio：1 ZnCl2Constituted with sodium carboxymethylcellulose, it is described poly-
The concentration of solidifying agent is 25ppm；Aperture plate is provided with the filtering ponds two, the grid gap length of the aperture plate is 0.3 ~ 0.8cm；Institute
State provided with separation filter plate in sedimentation basin two, the separation filter plate can be by separation of solid and liquid, and the sedimentation basin two is connected with fertilizer producing system.
3. urban sewage treatment system as claimed in claim 2, it is characterised in that：The outlet in the inorganic filter pond two is provided with
Detection means, can detect and contain heavy metal amount in filtrate；The inorganic filter pond two is provided with to the half-duplex channel of oxidation pond；The nothing
Machine filtering ponds one are provided with aperture plate, and the grid gap length of the aperture plate is 5 ~ 8cm；Ferrite process, institute are used in the oxidation pond
State n (Fe in ferrite process2+)/n(M2+)=15；In the inorganic precipitation pond be provided with inorganic flocculation agent, the inorganic flocculation agent by
Mol ratio is 1：1：0.4：1.2 chitosan, Na2B4O7·10H2O, MgSO4·7H2O, AlCl3·6H2O is constituted, described inorganic
The concentration of flocculation agent is 25ppm；Be provided with filter screen in the inorganic filter pond two, the grid gap length of the filter screen for 0.05 ~
0.08cm；The inlet and outlet in the membrane filtration pond is equipped with pressure regulating pump, and the membrane filtration pond is provided with thermostat, and temperature can be maintained permanent
It is scheduled in the range of 51 ~ 55 DEG C, 50nm multi-channel industrial inorganic ceramic membranes is provided with the membrane filtration pond.
4. urban sewage treatment system as claimed in claim 3, it is characterised in that：Aperture plate is provided with the organic filter pond,
The grid gap length of the aperture plate is 5 ~ 8cm；Sequential extractions are used in the abstraction pool, extractant is respectively：Petroleum ether,
Ethyl acetate：Petroleum ether=1:5, ethyl acetate：Petroleum ether=1:1, ethyl acetate：Petroleum ether=5:1, ethyl acetate；The extraction
Pond is provided with piece-rate system, can separate organic layer with water layer；The abstraction pool is connected with fertilizer producing system.
5. urban sewage treatment system as claimed in claim 4, it is characterised in that：The detection cell, which is provided with, respectively leads to precipitation
Pond two, soda acid pond, membrane filtration pond, abstraction pool, the individual event passage of anaerobic pond and wetland；Detection means, energy are provided with the detection cell
Enough detect size in water>The content of 0.3cm solid particle, containing heavy metal amount, phosphorus content, nitrogen content and phosphorus content.
6. urban sewage treatment system as claimed in claim 5, it is characterised in that comprise the following steps：
Step one：By sanitary sewage, food industry sewage, industrial inorganic sewage and industrial organic sewage separate collection；
Step 2：Sanitary sewage flows through the aperture plate of filtering ponds one, and particle of the filtering more than 5 ~ 8cm, liquid flow to sedimentation basin one, sunk
Shallow lake pond one keeps 25 ~ 28 DEG C of constant temperature, adds the flocculation agent that concentration is 25ppm, stands 2 ~ 3d, sewage flow to the grid of filtering ponds two
Net, particle of the filtering more than 0.3 ~ 0.8cm, liquid flow to sedimentation basin two, in sedimentation basin two in the range of regulation pH to 8 ~ 9,
2 ~ 3d is stood, solid and liquid are separated, solid delivers to fertilizer producing system；It is more than in the liquid that detection sedimentation basin two is separated
The content of 0.3cm particulate matter, works as granule content>During 0.2ppm, liquid flows back to filtering ponds one；Work as granule content<0.2ppm
When, liquid flow to anaerobic pond；
Step 3：Food industry sewage flows through the aperture plate of filtering ponds one, and particle of the filtering more than 5 ~ 8cm, liquid flow to sedimentation basin
One, sedimentation basin one keeps 25 ~ 28 DEG C of constant temperature, adds the flocculation agent that concentration is 25ppm, stands 2 ~ 3d, sewage flow to filtering ponds
Two aperture plate, particle of the filtering more than 0.3 ~ 0.8cm, liquid flow to sedimentation basin two, stands 2 ~ 3d, and solid and liquid are separated
Open, solid delivers to fertilizer producing system；The content for the particulate matter for being more than 0.3cm in the liquid that sedimentation basin two is separated is detected, works as particle
Content>During 0.2ppm, liquid flows back to filtering ponds one；Work as granule content<During 0.2ppm, liquid flow to anaerobic pond；
Step 4：Industrial organic sewage stream passes through the aperture plate in organic filter tank one, and particle of the filtering more than 5 ~ 8cm, liquid flow to extraction
Pond is taken, abstraction pool is interior to be respectively using extractant：Petroleum ether, ethyl acetate：Petroleum ether=1:5, ethyl acetate：Petroleum ether=1:1,
Ethyl acetate：Petroleum ether=5:1, ethyl acetate is extracted, and the piece-rate system in abstraction pool separates organic layer with water layer,
After the organic solvent recovery of organic layer, gained solid delivers to fertilizer producing system；Water layer flow to membrane filtration pond；
Step 5：Industrial inorganic sewage stream passes through the aperture plate in inorganic filter tank one, and particle of the filtering more than 5 ~ 8cm, liquid flow to acid
Alkali pond, in soda acid pond with Ca (OH)2Liquid is made as saturated solution, oxidation pond is flow to, ferrite process is passed through in oxidation pond,
n(Fe2+)/n(M2+Removed under conditions of)=15 after heavy metal ion, liquid flow to inorganic precipitation pond, it is 25ppm's to add concentration
Flocculation agent, stands 2 ~ 3d, and sewage flow to the aperture plate in inorganic filter pond two, particle of the filtering more than 0.05 ~ 0.08；Detect inorganic mistake
Contain heavy metal amount in liquid after the filtering of filter tank two, work as granule content>During 3ppm, liquid flows back to oxidation pond；Work as granule content<
During 3ppm, liquid flow to membrane filtration pond；Pressure regulating pump of the sewage Jing Guo the import of membrane filtration pond, pressure is adjusted in 0.32MPa, membrane filtration pond
The constant temperature of 51 ~ 55 DEG C of holding, passes liquid through 50nm ceramic membranes, and the liquid after filtering is exported by membrane filtration pond
Pressure regulating pump, 0.10MPa is adjusted to by pressure, and liquid flow to anaerobic pond；
Step 5：Sewage is in anaerobic pond, in the presence of denitrifying bacterium and polyP bacteria, stands 3 ~ 5d, Aerobic Pond is flow to, in nitre
Change in the presence of bacterium, stand nitrogen content and phosphorus content in 3 ~ 4d, sewage of the detection by Aerobic Pond processing, work as nitrogen content>8ppm,
Phosphorus content>During 0.3ppm, liquid flows back into anaerobic pond；Work as nitrogen content<8ppm, phosphorus content<During 0.3ppm, liquid flow to wetland,
Sewage handles 10 ~ 15d, flow to detection cell in the presence of wetland；
Step 6：Size in water body after detection cell difference detection process>The content of 0.3cm solid particle, containing heavy metal amount, contains
Carbon amounts, nitrogen content and phosphorus content；When the content of solid particle>During 0.2ppm, liquid flows back to filtering ponds one；When containing heavy metal amount>
During 3ppm, liquid flows back into soda acid pond, works as 3ppm>Containing heavy metal amount>During 0.05ppm, liquid flows back into membrane filtration Chi Chi；When carbon containing
Amount>During 0.02ppm, liquid flows back into abstraction pool, works as 0.02ppm>Phosphorus content>During 0.003ppm, liquid flows back into membrane filtration pond；When
Nitrogen content>8ppm or phosphorus content>During 0.3ppm, liquid flows back into anaerobic pond；Work as 8ppm>Nitrogen content>0.1ppm, or 0.3ppm>
Phosphorus content>During 0.1ppm, liquid flows back into wetland；Work as solid content<0.2ppm, containing heavy metal amount<0.05ppm, it is carbon containing
Amount>During 0.02ppm, nitrogen content<0.1ppm, phosphorus content<During 0.1ppm, liquid flow to ultraviolet sterilization pond；
Step 7：Ultraviolet sterilization pond, in 200 ~ 275nm of wavelength, the μ W.s/cm of dosage 13000 ~ 150002In the range of, processing 40 ~
Discharged after 60s.
7. the urban sewage treatment system as any one of claim 1-6, it is characterised in that PLC is to corresponding electromagnetism
It is as follows that valve transmission performs signal 311,312 ... 322 detailed processes：
In sedimentation basin two：PLC receives data signal 301, if CK >=0.2ppm, to sedimentation basin two to the passage of filtering ponds one
Magnetic valve transmission performs signal 311, if CK<0.2ppm, the then magnetic valve transmission to deep pond two to anaerobic pond passage is performed
Signal 312；
In inorganic filter pond two：If during CK >=3ppm, signal 313 is performed to filtering ponds to the transmission of the magnetic valve of oxidation pond passage；
If CK<During 3ppm, signal 314 is performed to filtering ponds to the transmission of the magnetic valve of membrane filtration pond passage；
In Aerobic Pond：If CN >=8ppm, CP >=0.3ppm, then to Aerobic Pond to the magnetic valve of anaerobic pond passage
Transmission performs signal 314；If CN<8ppm, CP<During 0.3ppm, then held to Aerobic Pond to the transmission of the magnetic valve of wetland passage
Row signal 315；
In detection cell：If CK>0.2ppm, signal 316 is performed to detection cell to the passage of sedimentation basin two transmission；If CZ>3ppm, Xiang Jian
The magnetic valve transmission for surveying pond to soda acid pond passage performs signal 317；If 3ppm>CZ>0.05ppm is logical to detection cell to membrane filtration pond
The magnetic valve transmission in road performs signal 318；If CC>During 0.02ppm, transmit and perform to the magnetic valve of abstraction pool passage to detection cell
Signal 319；If 0.02ppm>CC>During 0.003ppm, signal 320 is performed to detection cell to the transmission of the magnetic valve of membrane filtration pond passage；
If CN>8ppm or CP>0.3ppm, signal 320 is performed to detection cell to the transmission of the magnetic valve of anaerobic pond passage；If 8ppm>
CN>0.1ppm or 0.3ppm>CP>0.1ppm, signal 321 is performed to detection cell to the transmission of the magnetic valve of wetland passage；If CK<
0.2ppm, CZ<0.05ppm, CC>During 0.02ppm, CN<0.1ppm, CP<During 0.1ppm, to detection cell to wetland ultraviolet sterilization
The magnetic valve transmission in pond performs signal 322.
8. urban sewage treatment system as claimed in claim 7, it is characterised in that also include：Time measurement module, it includes
Sedimentation basin one and sedimentation basin two in sanitary sewage route, located at the inorganic precipitation pond of food industry sewage route, precipitation
Pond two, oxidation pond, anaerobic pond, the time measurement instrument of Aerobic Pond and wetland, for setting sewage time of repose；It is predetermined when reaching
Time of repose, sends prompting sound, reminds staff's progress next step operation；
Ultraviolet sterilization module, it include located at ultraviolet sterilization pond ultraviolet sterilization lamp, its ultraviolet wavelength launched be 200 ~
275nm, transmitting dosage is 13000 ~ 15000 μ W.s/cm2, and 40 ~ 60s is irradiated every time.
9. the autocontrol method of the urban sewage treatment system as any one of claim 1-8, it is characterised in that it
Comprise the following steps：
Step 1：By sanitary sewage, food industry sewage, industrial inorganic sewage and industrial organic sewage separate collection；
Step 2：Sanitary sewage flows through the aperture plate with food industry sewage water filtration pond one, particle of the filtering more than 5 ~ 8cm, liquid flow
To sedimentation basin one, the first detection module detects the temperature value of sewage, and is separately converted to data signal 101 and is transferred to PLC；
The PLC receives data signal 101, and when the temperature value of sedimentation basin one is less than 25 DEG C, signal is performed to heating module transmission
111；When the temperature value of sedimentation basin one is more than 28 DEG C, signal 112 is performed to heating module transmission；The heating module, is received
Signal 111 is performed, the water in sedimentation basin one is heated to 25 DEG C；Receive and perform signal 112, stop heating；It is subsequently added into concentration
For 25ppm flocculation agent, time of repose is set to be 2 ~ 3d at time measurement module in this place, sewage flow to the grid of filtering ponds two
Net, particle of the filtering more than 0.3 ~ 0.8cm, liquid flow to sedimentation basin two；
Step 3：The pH value of sewage in second detection module detection sedimentation basin two, and be converted into data signal 201 and be transferred to
PLC;The PLC receives data signal 201, and when its pH value is less than 8 or more than 9, signal is performed to the transmission of filter material add module
211 or 212；The filter material add module, signal 211 is performed if receiving, and adds the alkaline filtering material of predetermined close；If reception is held
Row signal 212, then add the acid filter material of predetermined close；It is 2 ~ 3d that time of repose is set at time measurement module in this place,
Solid and liquid are separated, solid delivers to fertilizer producing system；
Step 4：Granule content CK in the liquid that the 3rd detection module detection sedimentation basin two is separated, and it is converted into data signal
301 are transferred to PLC, and the PLC receives data signal 301, if CK >=0.2ppm, to sedimentation basin two to the passage of filtering ponds one
Magnetic valve transmission perform signal 311, if CK<0.2ppm, the then magnetic valve transmission to deep pond two to anaerobic pond passage is held
Row signal 312；Corresponding magnetic valve receives execution signal and opens its valve；
Step 5：Industrial organic sewage stream passes through the aperture plate in organic filter tank one, and particle of the filtering more than 5 ~ 8cm, liquid flow to extraction
It is respectively using extractant in pond, abstraction pool：Petroleum ether, ethyl acetate：Petroleum ether=1:5, ethyl acetate：Petroleum ether=1:1, second
Acetoacetic ester：Petroleum ether=5:1, ethyl acetate is extracted, and the piece-rate system in abstraction pool separates organic layer with water layer, right
After the organic solvent of organic layer is reclaimed, gained solid delivers to fertilizer producing system；Water layer flow to membrane filtration pond；
Step 6：Industrial inorganic sewage stream passes through the aperture plate in inorganic filter tank one, and particle of the filtering more than 5 ~ 8cm, liquid flow to soda acid
Pond, is made as saturated solution by liquid with Ca (OH) 2 in soda acid pond, flow to oxidation pond, ferrite process is passed through in oxidation pond, in n
(Fe2+) removed under conditions of/n (M2+)=15 after heavy metal ion, liquid flow to inorganic precipitation pond, it is 25ppm's to add concentration
It is 2 ~ 3d that time of repose is set at flocculation agent, time measurement module in this place, stands sewage after 2 ~ 3d and flow to inorganic filter pond
Two aperture plate, particle of the filtering more than 0.05 ~ 0.08；
Step 7：Granule content CK in liquid after the filtering of 3rd detection module detection inorganic filter pond two, if CK >=3ppm
When, perform signal 313 to filtering ponds to the transmission of the magnetic valve of oxidation pond passage；If CK<It is logical to filtering ponds to membrane filtration pond during 3ppm
The magnetic valve transmission in road performs signal 314；Corresponding magnetic valve receives execution signal and opens its valve；
Step 8：4th detection module includes the pressure detection module located at membrane filtration pond, for the pressure P in detection cell, and
It is converted into data signal 401 and is transferred to PLC;The PLC receives data signal 401, to voltage regulating module transmission perform signal 401 or
402；The voltage regulating module, which is received, performs signal 401, and pressure at import is adjusted into 0.32MPa, meanwhile, the first detection mould
Block detects the temperature value of sewage, and is separately converted to data signal 101 and is transferred to PLC；The PLC receives data signal 101, when
When the temperature value in membrane filtration pond is less than 51 DEG C, signal 111 is performed to heating module transmission；When the temperature value in membrane filtration pond is more than 55 DEG C
When, perform signal 112 to heating module transmission；The heating module, receives and performs signal 111, the water in sedimentation basin one is added
Heat is to 25 DEG C；Receive and perform signal 112, stop heating, pass liquid through 50nm ceramic membranes, receive and perform signal
402, exit pressure is adjusted to 0.10MPa, liquid is flow to anaerobic pond；
Step 9：Sewage sets time of repose to be 3 ~ 5d, in denitrifying bacterium in anaerobic pond at time measurement module in this place
In the presence of polyP bacteria, stand 3 ~ 5d, flow to Aerobic Pond, at time measurement module in this place set time of repose be 3 ~
4d, in the presence of nitrifier, stands nitrogen content in 3 ~ 4d, sewage of the 3rd detection module detection by Aerobic Pond processing
CN and phosphorus content CP, and be converted into data signal 304 and 305 and be transferred to PLC；The PLC receives data signal 304 and 305, if
CN >=8ppm, CP >=0.3ppm, then to Aerobic Pond to the magnetic valve of anaerobic pond passage；Transmission performs signal 314；If CN<8ppm,
CP<During 0.3ppm, then signal 315 is performed to Aerobic Pond to the transmission of the magnetic valve of wetland passage；Corresponding magnetic valve, which is received, to be performed
Signal simultaneously opens its valve；Sewage handles 10 ~ 15d, flow to detection cell in the presence of wetland；
Step 10：The granule content CK of sewage, content of beary metal CZ, phosphorus content in the 3rd detection module detection detection cell
CC, nitrogen content CN and phosphorus content CP, and be converted into data signal 301,302,303,304 and 305 and be transferred to PLC；The PLC connects
Data signal 301,302 ... 305 are received, if CK>0.2ppm, signal 316 is performed to detection cell to the passage of sedimentation basin two transmission；If
CZ>3ppm, signal 317 is performed to detection cell to the transmission of the magnetic valve of soda acid pond passage；If 3ppm>CZ>0.05ppm, to detection
The magnetic valve transmission of pond to membrane filtration pond passage performs signal 318；If CC>During 0.02ppm, to detection cell to the electricity of abstraction pool passage
Magnet valve transmission performs signal 319；If 0.02ppm>CC>During 0.003ppm, transmitted to detection cell to the magnetic valve of membrane filtration pond passage
Perform signal 320；If CN>8ppm or CP>0.3ppm, signal is performed to detection cell to the transmission of the magnetic valve of anaerobic pond passage
320；If 8ppm>CN>0.1ppm or 0.3ppm>CP>0.1ppm, signal is performed to detection cell to the transmission of the magnetic valve of wetland passage
321；If CK<0.2ppm, CZ<0.05ppm, CC>During 0.02ppm, CN<0.1ppm, CP<During 0.1ppm, to detection cell to wetland
The magnetic valve transmission in ultraviolet sterilization pond performs signal 322；Corresponding magnetic valve receives execution signal and opens its valve；
Step 11：Ultraviolet sterilization pond, is discharged after 40 ~ 60s of ultraviolet sterilization light irradiation every time.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1356275A (en) * | 2001-12-28 | 2002-07-03 | 万端极 | Integrated treating system and process for cleaning sewage |
| CN104355440A (en) * | 2014-10-24 | 2015-02-18 | 苏州富奇诺水治理设备有限公司 | Sewage classified treatment method |
| CN204325087U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind of by the system of pickling steel pipe waste water and sanitary sewage comprehensive treating process |
| KR20150057658A (en) * | 2013-11-20 | 2015-05-28 | 가톨릭관동대학교산학협력단 | Method of and Apparatus for Wastewater Treatment by Microalgae Membrane Bioreactor Process |
| CN205115221U (en) * | 2015-09-25 | 2016-03-30 | 张荣斌 | Municipal sewage treatment system |
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2015
- 2015-09-25 CN CN201510616494.0A patent/CN105366875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1356275A (en) * | 2001-12-28 | 2002-07-03 | 万端极 | Integrated treating system and process for cleaning sewage |
| KR20150057658A (en) * | 2013-11-20 | 2015-05-28 | 가톨릭관동대학교산학협력단 | Method of and Apparatus for Wastewater Treatment by Microalgae Membrane Bioreactor Process |
| CN104355440A (en) * | 2014-10-24 | 2015-02-18 | 苏州富奇诺水治理设备有限公司 | Sewage classified treatment method |
| CN204325087U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind of by the system of pickling steel pipe waste water and sanitary sewage comprehensive treating process |
| CN205115221U (en) * | 2015-09-25 | 2016-03-30 | 张荣斌 | Municipal sewage treatment system |
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Effective date of registration: 20170831 Address after: Two Longtan Industrial Park, three ring road, Chenghua District, Sichuan, Chengdu 610041, China Applicant after: SICHUAN CHANGHE ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. Address before: 610041 Wuhou District, Chengdu, South Ring Road, No. two, No. 1, building No. 18, building 1, No. 2 Applicant before: Zhang Rongbin |
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