CN207404942U - A kind of microalgae carbon sequestration and sewage ecological treatment system - Google Patents
A kind of microalgae carbon sequestration and sewage ecological treatment system Download PDFInfo
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- CN207404942U CN207404942U CN201720740629.9U CN201720740629U CN207404942U CN 207404942 U CN207404942 U CN 207404942U CN 201720740629 U CN201720740629 U CN 201720740629U CN 207404942 U CN207404942 U CN 207404942U
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Abstract
The utility model is related to a kind of microalgae carbon sequestration and sewage ecological treatment systems, belong to ecological, environmental protective technical field.Microalgae carbon sequestration provided by the utility model and sewage ecological treatment system, including microalgae carbon sequestration system and microalgae sewage disposal system；The microalgae carbon sequestration system includes carbon source and micro algae growth equipment for breeding (5)；The microalgae sewage disposal system includes source of sewage (18)；The microalgae sewage disposal system carries out the processing of sewage using micro algae growth equipment for breeding.Processing system provided by the utility model can while carbon sequestration efficient sewerage processing, can realize the industrialization operation of microalgae carbon sequestration and sewage disposal, solve to promote economic benefit while environmental pollution.
Description
Technical field
The utility model is related to ecological, environmental protective technical fields, and in particular to a kind of microalgae carbon sequestration and ecological wastewater processing system
System.
Background technology
According to the data of State Statistics Bureau, the energy consumption total amount in China in 2015 is 4,300,000,000 tons of mark coals.Carbon dioxide is total
Discharge has reached 13,000,000,000 tons, causes temperature rise and haze increasingly severe.Wherein, main carbon dioxide is from industry
Production.For example, China's power consumption of 2015 has reached 5.8 trillion degree, about 2,000,000,000 tons of mark coals, the carbon dioxide of generation are converted into
About 6,000,000,000 tons, account for 45% or so of carbon dioxide total release.Carbon emission be cause climate warming and haze it is important because
Element.Therefore, Chinese Government announces 2020 weather target：Carbon intensity declines 60%~65%, this is one very difficult
Huge task.
The annual sewage load in China has reached 40,000,000,000 tons, every year also in the speed increase with about 5~10%.
The conventional method of sewage disposal is aerobic method processing, takes around the electric power of 16,000,000,000 kilowatt hours of consumption every year, about generates 5000
Ten thousand tons of sludge.These sludge are classified as " hazardous waste " by country, cause substantial amounts of secondary pollution, and spend substantial amounts of fund
It is handled.The disposal costs of sludge per ton are up to 400~800 yuan.The sludge treatment expense in the annual whole nation is about 40,000,000,000
Member.
Algae can not only be generated natural organic food and nutriment, but also can be digested sewage with carbon sequestration.Made with sewage
For the purification of raw materials sewage of algae, and the algae with nutritive value and the ecological value.With microalgae treated sewage in developed country,
And China has all carried out numerous studies.The developed countries and regions such as the U.S., Europe, Australia, Japan, Taiwan all will be micro-
Algae culture is as the strategic development target for realizing ecological wastewater processing and production of renewable energy resources.China has had begun greatly at present
The algal culture of area.But also it is mainly used for luxury food and health products production.It is established greatly on Shandong, Yunnan and Inner Mongol and other places
The chlorella of scale and the cultivation base of spirulina, and the factory of large-scale nutriment and health products is established, it forms
The industrial chain of scale.
Algae pond system HRT commonly used at present, general culturing time are 2~6 days.If it is supported using algae pond
Plantation technology treated sewage, equivalent population take up an area general>10m2.If the city of an a population of one million, is handled using both culturing microalgae
Sewage, floor space are up to 1.5 ten thousand mu.It will be apparent that its many also huger than two/three-level sewage disposal main unit,
This is in the city of land used anxiety impossible received.Therefore, there is no a kind of the big of microalgae treated sewage for the prior art
Technical scale production decision.
Utility model content
The purpose of this utility model is to provide a kind of microalgae carbon sequestration and sewage ecological treatment systems.The utility model provides
Processing system can while carbon sequestration efficient sewerage processing, can realize the industrialization fortune of microalgae carbon sequestration and sewage disposal
Row solves to promote economic benefit while environmental pollution.
The utility model provides a kind of microalgae carbon sequestration and sewage ecological treatment system, which is characterized in that consolidates including microalgae
Carbon system and microalgae sewage disposal system；
The microalgae carbon sequestration system includes carbon source and micro algae growth equipment for breeding (5)；
The microalgae sewage disposal system includes source of sewage (18)；
The microalgae sewage disposal system carries out the processing of sewage using micro algae growth equipment for breeding.
Preferably, the micro algae growth equipment for breeding includes shell (6), partition plate (7), agitating device and light source (10).
Preferably, the shell (6) and partition plate (7) are transparent material.
Preferably, it is both provided with agitating device above every layer of partition plate.
Preferably, the agitating device includes mechanical stirring device and Pneumatic mixing device.
Preferably, the Pneumatic mixing device includes distributed pneumatic aeration device (8).
The microalgae sewage disposal system further includes sewage pre-treatment device and sewage heating device (15).
Preferably, the sewage heating device (15) includes solar energy and industrial exhaust heat.
Preferably, it is 20~35 DEG C that the sewage heating device (15), which controls sewage temperature,.
Preferably, the preprocessing process of the sewage pre-treatment device includes filtering, precipitation.
The utility model additionally provides a kind of microalgae carbon sequestration and sewage ecological treatment system.The utility model is with sewage and two
Micro algae growth equipment for breeding is connected by the base stock that carbonoxide is bred as micro algae growth respectively with carbon source and source of sewage, is led to
It crosses microalgae and carries out sewage disposal and the fixation of carbon dioxide, obtained algae solution, which carries out concentration, becomes fertilizer, available for sand control, grass
, the fertilizer of fruit tree and crops or as the high-grade feed of aquaculture or even as nutrient and healthcare products.Microalgae is utilizing dirt
Water and carbon dioxide can also discharge a large amount of oxygen during microalgae is grown under photosynthesis, improve air environment.This practicality
The processing system of new offer can while carbon sequestration efficient sewerage processing, can realize the production of microalgae carbon sequestration and sewage disposal
Industryization is run, and solves to promote economic benefit while environmental pollution.
Description of the drawings
Fig. 1 is the microalgae carbon sequestration and sewage ecological treatment system schematic diagram that the utility model specification provides；
Fig. 2 is the micro algae growth equipment for breeding structure chart that the utility model specification provides；
Fig. 3 is the biogas slurry schematic diagram using the aerobic technical finesse of tradition that the utility model embodiment 1 provides；
Fig. 4 is that flue gas carbon sequestration-microalgae that the utility model embodiment 1 provides handles biogas slurry system flow chart；
Fig. 5 is biogas-microalgae carbon sequestration-biogas slurry microalgae ecological treatment system pictorial diagram that the utility model embodiment 1 provides；
Fig. 6 is that the microalgae that the utility model embodiment 1 provides exposes growth and breeding tower pictorial diagram；
Fig. 7 is the liquid pictorial diagram after filter press press filtration that the utility model embodiment 1 provides；
Fig. 8 is the liquid pictorial diagram after filter press separates that the utility model embodiment 1 provides；
Fig. 9 is the pictorial diagram of microalgae processing biogas slurry before the biogas slurry separation that the utility model embodiment 1 provides；
Figure 10 is the biogas slurry examining report that Tthe utility model system that the utility model embodiment 1 provides is handled；
Figure 11 is the biogas slurry water quality monitoring knot that Tthe utility model system that the utility model embodiment 1 provides is handled
Fruit.
Specific embodiment
The utility model provides a kind of microalgae carbon sequestration and sewage ecological treatment system, including microalgae carbon sequestration system and microalgae
Sewage disposal system；
The microalgae carbon sequestration system includes carbon source and micro algae growth equipment for breeding (5)；
The microalgae sewage disposal system includes source of sewage (18)；
The microalgae sewage disposal system carries out the processing of sewage using micro algae growth equipment for breeding.
In the utility model, microalgae is utilizing sewage and carbon dioxide under photosynthesis, in carbon sequestration and treated sewage
While, produce high-grade ecological feed and fertilizer.A large amount of oxygen can also be discharged, improve the ecological environment of people.
In the utility model, the microalgae carbon sequestration system includes carbon source, and the carbon source includes carbon monoxide, titanium dioxide
Carbon.The utility model does not have the source of the carbon source special restriction, using carbon source factory well known in the art,
The carbon source factory is the factory that can generate carbon dioxide, is preferably thermal power plant, chemical plant, smeltery, kiln etc..With industry
Carbon dioxide sharply increases, and the carbon source of the utility model is preferably using the carbonated flue gas of factory's discharge.This practicality
The new carbon source provides raw material for carbon sequestration, reduces discharge, is conducive to produce algae and builds ecological circulation economic system.
Microalgae carbon sequestration system described in the utility model includes micro algae growth equipment for breeding (5).The micro algae growth breeding dress
It is set to using organic biomass (including sewage) and carbon source as raw material, photosynthetic work is carried out with light source (including artificial light sources and sunlight)
With, production microalgae, and discharge the device of oxygen.In the utility model, the micro algae growth equipment for breeding include shell (6),
Partition plate (7), agitating device and light source (10).In the utility model, agitating device is all set on every layer of partition plate.In this reality
In new, the agitating device includes mechanical stirring device and Pneumatic mixing device.It is described pneumatically to stir in the utility model
Mixing device includes distributed pneumatic aeration device (8).In the utility model, the distribution pneumatic aeration device, preferably by
Multiple screen mesh type aeration head compositions, the aeration head are evenly distributed in the liquid on every layer of partition plate.Described in the utility model point
Cloth pneumatic aeration device can not only evenly distribute flue gas, but also can breed liquid to micro algae growth and carry out pneumatic agitation.In this practicality
In new, the micro algae growth equipment for breeding more preferably includes shell, partition plate, light source, agitating device, sewage feed arrangement and micro-
Algae discharger.The utility model does not have special restriction to the feed arrangement and microalgae discharger, using this field skill
Sewage feed arrangement known to art personnel and microalgae discharger.In the utility model, the light source includes natural light
Source and artificial light source, when the light source is artificial light source, the light source preferably includes exposure device.
In the utility model, the shell (6) and partition plate (7) are transparent material.It is described transparent in the utility model
Material is preferably glass plate, including simple glass plate, tempered glass version and poly (methyl methacrylate) plate.
In the utility model, the microalgae sewage disposal system includes source of sewage (18).The utility model is to the dirt
The source at water source does not have special restriction, using sewage source well known to those skilled in the art, such as town sewage, community
Sanitary sewage, consumer waste infiltration liquid, slaughtering wastewater, industrial or agricultural organic wastewater, biogas slurry etc..
In the utility model, the microalgae sewage disposal system includes sewage heating device (15), the utility model institute
State the optimum growh the bread worm that sewage heating device can keep water temperature to be in microalgae.In the utility model, the sewage
The heat source of heating unit preferably comprises solar energy and industrial exhaust heat.The sewage heating device preferably includes solar energy heating dress
It puts.The industrial exhaust heat is preferred from flue gas of thermal power plant, chemical plant, steel plant etc..In the utility model, the sewage man
People's device is used to heat sewage and keep the temperature growth and breeding tower.In the utility model, the sewage heating device control
Sewage temperature is 20~35 DEG C, more preferably 25~32 DEG C.
In the utility model, the microalgae sewage disposal system includes sewage pre-treatment device.In the utility model,
The preprocessing process of the sewage pre-treatment device includes filtering, precipitation.
In the utility model, the micro algae growth equipment for breeding preferably includes microalgae collection device.The microalgae is collected
Device is chosen according to microalgae.When microalgae length is in 50 μm~1mm, the mode commonly filtered is preferably taken to collect；For
Special thin microalgae, as chlorella can take the mode of ultra filtration to collect；In the case of particular/special requirement, it can also take anti-
Infiltration (RO) mode filters.
In the utility model, the ecological treatment system preferably includes microalgae and utilizes system.In the utility model, institute
The utilization for stating microalgae is preferably divided into two parts.A portion is ecological use, and another part is microalgae deep processing and utilization.For
The ecological use of microalgae is that microalgae liquid directly is sent into planting base, including desert sand control, grassland plantation, pours fruit
Tree, vegetables and Farming etc..Ecological construction is one of main purpose of the utility model.Liquid microalgae can be defeated by pipeline
Ecological base is sent to be irrigated and applied fertilizer.For ecological base, will planning of science activities be carried out according to different concrete conditions and built
If.Here three kinds of basic purposes (but being not limited to these three purposes) are mainly considered, including grassland plantation, organic fruits plantation and grain
Eat vegetable cultivation.Wherein, grassland plantation includes sand control plantation and breeding and planting.Application includes many kinds, such as grape, black
Peach, apple etc..Especially many places of wine-growing all employ drip irrigation system and apply fertilizer.Depth can also be carried out for microalgae
Processing, including the high-grade feed of production or even the high-grade health nutrient of production etc..
In the utility model, the ecological treatment system preferably includes algae solution processing and chlorination equipment, after antivirus
Algae solution can carry out qualified discharge.
In the utility model embodiment, the microalgae carbon sequestration and sewage ecological treatment system are specific preferably as shown in Figure 1：
Wherein, 1 is carbon source；2 be flue gas control valve；3 be the sun；4 be flue gas wind turbine；5 be micro algae growth equipment for breeding；6
For shell；7 be partition plate；8 be distributed pneumatic aeration device；9 be sewage distributor；10 be light source；11 be power distribution system
System；12 breed liquid for micro algae growth；13 be microalgae discharger；14 pump for sewage transport；15 be sewage heating device；16 are
Sewage pre-treatment device；17 be sewage feed pump；18 be source of sewage；19 be microalgae deep processing device；20 be microalgae collection device；
21 be algae solution antivirus processing unit；22 be algae solution precipitation savings device；23 be microalgae ecological use control valve；24 be orchard；25
For drip irrigation system；26 be meadow；27 be grain vegetables base；28 be spray irrigation system.
In the utility model, the enlarged drawing of the micro algae growth equipment for breeding is as shown in Figure 2.
In the utility model, the microalgae carbon sequestration and sewage ecological treatment system process flow are specifically preferably as follows：
Algal grown breeding needs algae, raw material and sunlight.It is special that the utility model does not have the source of the algae
It limits, using the commercial product of algae well known to those skilled in the art.Algae described in the utility model preferably includes small
Ball algae and spirulina.The chlorella and nutritious spirulina value are high, breeding is fast, has very strong adaptability.
Chlorella (Chlorella) is the general natural disposition monoplast green alga of Chlorophyta Chlorella, is that a kind of spherical shape is unicellular light
Algae class, 3~8 microns of diameter, is one of life earliest on the earth, is a kind of efficient photosynthetic before appearing in more than 20 hundred million years
Plant, with photoautotrophy growth and breeding, distributed pole is wide.
Chlorella (Chlorellavulgaris) Chlorophyceae, chlorella section.Single-cell algae, Chang Dansheng also have many cells to gather
Collection.Cell is spherical, ellipse, the interior chromatoplast there are one Zhousheng, cup-shaped or sheet.Vegetative propagation, each cell can generate
2nd, 4,8 or 16 autospores, mother cell ruptures when ripe, spore effusion, is new individual after growing up.Have all over the world point
Cloth moves in smaller shallow water more, also there is marine breeds.Individual is less under natural endowment, manually cultivates amount reproduction.Intracellular
Protein, fat and carbohydrate content are all very high, and there are many vitamin, edible and as bait.
Chlorella is distributed widely in nature, with freshwater most species；It is easy to cultivate, luminous energy can not only be utilized certainly
It supports, moreover it is possible to be grown, bred using organic carbon source under the conditions of heterotrophism；And growth and breeding speed is fast, is to move to plant on the earth
4 times of biology can uniquely be increased in object in 20h, so its application value is very high.The common species in China have chlorella pyrenoidosa,
Chlorella ellipsoidea, chlorella vulgaris etc., wherein chlorella pyrenoidosa protein content are high, nutritive value highest.
Spirulina (Spirulina) is also known as " arthrospira ".Cyanophyceae, Oscillariaceae is a kind of unicellular lower eukaryote, prokaryotes,
The filamentous being made of unicellular or many cells, body is 200-500 μm long, 5-10 μm wide, cylindrical, in loose or closely have rule
Spiral rotation shape bending then, shaped like clockwork feed, so gain the name.With the toxicity for mitigating cancer radiation, chemotherapy, raising is exempted from
Epidemic disease function reduces blood fat and other effects..There is extensive artificial culture both at home and abroad at present, predominantly blunt top spirulina, very big spiral
Three kinds of algae and India's spirulina.Edible, full of nutrition, protein content is up to 60%~70%.
The utility model disposably adds in algae in micro algae growth equipment for breeding preferably by way of manually adding in, and makes
Its natural growth and breeding.Special design algae adding apparatus is not done in the utility model.
Algal grown breeding place --- the structure of micro algae growth equipment for breeding is as described above.
A raw material part for algal grown breeding comes from source of sewage, and another part derives from carbon source.The source of sewage contains
There are substantial amounts of biomass and abundant protein, sugar, starch, acid and other organic matters, ammonia, nitrogen, phosphorus, various salts etc., all
It is good algae raw material, can be used for producing algae.
Another raw material of algal grown breeding is carbon source, is preferably carbon dioxide and a small amount of carbon monoxide.Both
Gas is all the raw material of algae production.Many factories have substantial amounts of carbon dioxide to discharge, and are the maximum dirts for influencing ecological environment
Dye source, the whole world is all in research administering method.In the utility model, in original smoke evacuation system of factory, pass through flue gas control
Valve (2) processed draws part of smoke, and distributed pneumatic aeration device (8) is sent by flue gas wind turbine (4).Distributed pneumatic aeration
Device (8) is placed in each layer of micro algae growth breeding liquid (12) in micro algae growth equipment for breeding (5).Flue gas is in wind turbine (4)
Driving under, the aerator of pneumatic aeration device (8) sprays into flue gas in breeding liquid, while the stirring reached to liquid is made
With.
Algal grown breeds required light source, and artificial light sources is mainly used in the utility model.The production of artificial light sources
Giving birth to technique is：It is adjusted to be suitble to the electric power of artificial light sources to join parameters of electric power from the electric energy that power grid is downloaded by distribution system (11)
Number.In view of the security of equipment, the general voltage class using no more than 36 volts.The electric power configured is accessed by cable
In light source (10).The light source is preferably artificial light sources system, and artificial light sources system includes light-emitting lamp, mating cable and control
Device processed.Since the luminous efficiency of LED light is very high, and long lifespan, therefore paid the utmost attention under normal circumstances using White LED
Deng as light source lamp.
For later microalgae microalgae discharger (13) the discharge micro algae growth equipment for breeding (5) of growth and maturity, Ran Houjin
Enter next process.
When the mixture of microalgae and algae solution is after microalgae discharger (13) discharge, into microalgae delivery pump (14), row
The mixing liquid gone out is divided into two parts.A portion is given birth to by microalgae Ecological Control valve (23) into the microalgae ecosystem
State utilizes；Another part enters microalgae collection device (20).This two parts closes liquid and is adjusted according to actual needs very much.First
Meet the ecological use of microalgae, remainder just enters microalgae collection device (20).
Include for the ecological use of microalgae the meadow used in sand control cultivate, gobi and soil remediation, aquaculture grassland kind
Plant, planting fruit trees, vegetables and Farming etc..Usually consider trickle irrigation and sprinkling irrigation mode for the Land use systems of microalgae mixed liquor.
Due to microalgae very little, even if microalgae after death grain size also very little, and viscosity very little, pipeline is not easy to plug.It so can be according to need
Build trickle irrigation or spray irrigation system.
Another part of the microalgae mixed liquor come out from microalgae delivery pump is sent into algae separator (20) by pipeline, right
Solid algae and algae solution are separated.
It is achieved for the mode that feeds of sewage according to following technique：Source of sewage is pooled to source of sewage according to actual conditions
(18) in.The sewage pre-treatment device after sewage feed pump (17) pressurization, including grid filtration, precipitation and parameter regulation, reaches
To after the requirement into micro algae growth breeding, into sewage heater (15), reach sewage and be suitable for micro algae growth breeding
After optimum temperature, then micro algae growth equipment for breeding (6) is sent, make microalgae growth and breeding in tower.
It is carried out for the feeding manner of carbon dioxide using following technique：When the flue gas of factory is by desulfurization, dedusting, denitrogenation
The flue gas of national standard limit of smog release is reached afterwards, shunting is partly into flue gas control valve (2), using flue gas wind turbine (4)
Distributed pneumatic aeration device (8) is sent into, then flue gas is uniformly sent to each of hot micro algae growth equipment for breeding (5) by the device
In the micro algae growth propagating liquid of layer, nutrition is provided for micro algae growth breeding.Since the flue gas of current domestic integrated mill all passes through
Stringent processing is crossed, particularly dust has reached ultra-clean discharge standard, and micro algae growth equipment for breeding is directly entered so possessing
Condition.By the flue gas of micro algae growth equipment for breeding, carbon dioxide, sulfur dioxide and nitrogen all can be by a micro- consumption parts.
Particularly carbon dioxide will consume greatly, be fixed by microalgae.Meanwhile the oxygen in flue gas can increase, this is beneficial to
Improve atmospheric environment.Will also it is emphasized that for factory discharge flue gas, temperature usually between 50~120 DEG C, and
The temperature of micro algae growth equipment for breeding is usually at 20~35 DEG C, therefore, after flue gas is by breeding tower, can add for microalgae
Heat, in favor of micro algae growth and breeding.In addition, from the gas of breeding tower discharge, temperature declines, and steam-laden temperature declines,
The moisture of institute's band reduces, and is washed by algae solution, dust, sulfur dioxide, NOnAlso further decline, to improving atmospheric environment and controlling
Reason haze has great benefit.
A kind of microalgae carbon sequestration described in the utility model and sewage ecological treatment system are done with reference to specific embodiment
Further details of introduction, the technical solution of the utility model include but not limited to following embodiment.
Embodiment 1
Multiphase flow biogas-sewage microalgae processing ecosystem application example
The utility model is comprehensive in one domestic pig farm construction waste multiphase flow biogas of Suining City of Sichuan Province Daying County in 2014
Close processing system.The project produces biogas using pig farm waste as raw material, using multiphase flow biogas technology.It is initially aerobic with three-level
System handles biogas slurry.Project started to build in 2015, trial operation in 2016.Since biogas slurry contains substantial amounts of ammonia, nitrogen, phosphorus and salt
Class so that biochemical degradation rate can only achieve 50% or so, and biogas slurry BOD, COD is very high, reach more than 10000.Therefore, adopt
It is a global problem with aerobic technical finesse biogas slurry.Project Unit encounters very big difficulty.
This project initial design is using the aerobic biogas slurry treatment system processing biogas slurry of three-level.Despite the use of three-level large capacity exposes
Oxygen, effect or very poor.The Aerobic Process for Treatment facility of 9 ton days is originally designed, actual 2 ton days are all not achieved.Particularly, after processing
BOD and COD all more than 3000, sewage drainage standard is much not achieved.Fig. 3 is using using the aerobic technical finesse of tradition
Biogas slurry schematic diagram.
The utility model undergoes technological transformation to former project using micro algae growth equipment for breeding.Specific technology reforming scheme
It is：Original two-stage aerobic processing unit is transformed into micro algae growth equipment for breeding, and is set based on screen mesh type aeration head
Meter has manufactured distributed pneumatic aeration device, and micro algae growth breeding mixing liquid is stirred with air.In order to reduce dioxy
Change carbon emission, and utilize carbon dioxide production microalgae.Since original system is in order to heat methane-generating pit, burnt with methane combustion furnace
Biogas heats biogas slurry.Carbon dioxide and water will be generated after biogas combustion.By technological transformation, the utility model is by biogas
The flue gas that combustion furnace generates introduces distributed pneumatic aeration device, use flue gas and air mix after for micro algae growth breeding tower into
Row stirs, and microalgae does not provide extra-nutrition substance.The system is made both to reduce CO2 emission, has reached carbon sequestration purpose,
Microalgae yield is added again.Flue gas carbon sequestration-microalgae processing biogas slurry system flow chart after the technological transformation of this project is as shown in Figure 4.
Transformation project will be proceeded by the end of the year 2016, be built up in by the end of April, 2017.May brings into operation, and project succeeds,
Pass through further application extension application this patent on this basis.The end of the year 2016 completed the technological transformation of the system.Transformation
After form biogas-microalgae carbon sequestration, biogas slurry ecological treatment system, biogas-microalgae carbon sequestration-biogas slurry microalgae ecological treatment system is in kind
Figure is as shown in figure 5, microalgae exposure growth and breeding tower pictorial diagram is as shown in Figure 6.
System that employs two-stages to expose growth and breeding tower series operation.Agitating device employs pneumatic stirring mode.Gas
The aeration head of dynamic stirring is screen mesh type aeration head.
The raw material of the system successively employs the various materials such as pig farm waste, municipal sludge, vinasse and stalk, through multiphase
After flowing methane-generating pit fermentation, using multistep treatment, qualified biogas slurry is entered into first order tower from the top of growth and breeding tower, is passed through
The second level is entered back into after first order growth and breeding and is badly in need of growth and breeding.It is numerous from the second level in microalgae after two-stage growth and breeding
Tower bottom discharge is grown, microalgae and liquid are separated into microalgae hydraulic hybrid filter.Liquid after it will separate is sent into PP
Cotton ultrafilter further separates liquid.The system is in commencement of commercial operation in May, 2017.Liquid after filter press separates
Material object is as shown in fig. 7, the liquid after ultrafilter separates is shown in that Fig. 8, Fig. 9 handle biogas slurry pictorial diagram for microalgae before separation.
Biogas slurry by microalgae exposure growth and breeding tower processing has reached good effect.After employing new technology, waste
Treating capacity be increased to 1000kg/d from daily 200kg/d, biogas slurry treatment amount is increased to more than 10t/d by original 2t/d.Through
Crossing treated, biogas slurry examining report is shown in Figure 10, and Figure 11 is shown in biogas slurry water quality detection report.According to detection data, indices are all remote
It is much better than the discharge standard of country's promulgation.Wherein：
BOD after biogas slurry treatment：11.8mg/L (national animal farm wastewater discharge standard 150mg/L)；
COD after biogas slurry treatment：37mg/L (national standard 400mg/L)；
Total nitrogen：12.2mg/L (national standard 80mg/L)；
Suspension amount：27.5mg/L (national standard 200)；
PH value：7.68, neutral water quality.The flue gas of combustion furnace is to be directly discharged into air by chimney before technological transformation.Change
Flue gas after making all is sent into micro algae growth by air-introduced machine and breeds tower, and is sent into micro algae growth breeding through distributed aerator
Among liquid.Air is discharged into after microalgae absorbs.By Preliminary detection, carbon dioxide absorbs 60~70% by microalgae.
Embodiment 2
Carbon sequestration-sewage disposal-ecosystem implementation based on thermal power plant
Thermal power generation is the first big CO2 emission source of China.According to national statistics office data, the power generation in China in 21015
Overall consumption is 5.8 trillion kilowatt hours, is converted into than energy.About 1,900,000,000 tons of source mark coal, the total carbon dioxide capacity discharged about 50
Hundred million tons.Account for 45% or so of national total release.If with these carbon dioxide production microalgaes, 3,000,000,000 tons can be at least produced
More than.The current thermal power plant overwhelming majority unit in China is all the super-huge supercritical unit of 600~1000MW, very suitable
Together in carbon dioxide production microalgae.The fired power generating unit of one 1000MW, daily coal consumption are about 6000 tons, are produced daily
About 13000 tons of raw carbon dioxide about generates 3,000,000 tons of carbon dioxide every year.It is if big with these carbon dioxide production microalgaes
2,000,000 tons can about be produced.It is it can be seen that very huge with the carbon dioxide production microalgae potentiality that thermal power plant generates.It is special
It is not that thermal power plant has substantial amounts of waste heat, far beyond the required heat of production microalgae.This is provided for production microalgae
Good condition.With reference to this patent, following embodiment can be taken.
It is substantially consistent with the technique that this patent provides for project implementation technique.Early work small-sized change as follows：
The flue gas discharged from thermal power plant, which is substantially all, has reached ultra-clean discharge standard.Therefore, flue gas can be directly entered micro-
Algae growth and breeding tower, without carrying out other processing.Flue-gas temperature is about between 50~60 DEG C.Therefore, flue gas band in itself
There is heat source.In the case, micro algae growth breeding tower need not make glass structure, and use ordinary carbon steel shell.It is but internal
Partition plate still needs using glass plate.
Thermal power plant is usually in suburb or in mining area and rural area away from city.This is for the ecological use of microalgae
It is very good.For example, microalgae mixing liquid feeding rural area is grown fruit, vegetables or for planting forage grass and is used for
Sand prevention, sand control meadow plantation etc..
For the thermal power plant away from city, sewage source is limited, can be by plant area and neighbouring town sewage, rural area
Breeding wastewater, biogas slurry etc. are used for the raw material of micro algae growth breeding.
By above project construction, can turn a low-carbon emission around power plant into, beautiful environment, collection ecology
Agricultural, aquaculture and ecological environment are in integral circular economy industrial system.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of microalgae carbon sequestration and sewage ecological treatment system, which is characterized in that at microalgae carbon sequestration system and microalgae sewage
Reason system；
The microalgae carbon sequestration system includes carbon source and micro algae growth equipment for breeding (5)；The micro algae growth equipment for breeding (5) includes
Shell (6), partition plate (7), agitating device and light source (10)；The shell (6) and partition plate (7) are transparent material；Described in every layer every
Agitating device is both provided with above plate；The agitating device includes mechanical stirring device and Pneumatic mixing device；It is described pneumatically to stir
Mixing device includes distributed pneumatic aeration device (8)；
The microalgae sewage disposal system includes source of sewage (18)；The microalgae sewage disposal system utilizes micro algae growth breeding dress
Put the processing for carrying out sewage.
2. processing system according to claim 1, which is characterized in that it is pre- that the microalgae sewage disposal system further includes sewage
Processing unit and sewage heating device (15).
3. processing system according to claim 2, which is characterized in that the sewage heating device (15) include solar energy and
Industrial exhaust heat.
4. processing system according to claim 3, which is characterized in that the sewage heating device (15) controls sewage temperature
For 20~35 DEG C.
5. processing system according to claim 2, which is characterized in that the preprocessing process bag of the sewage pre-treatment device
Include filtering, precipitation.
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| CN201720740629.9U CN207404942U (en) | 2017-06-23 | 2017-06-23 | A kind of microalgae carbon sequestration and sewage ecological treatment system |
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| CN201720740629.9U CN207404942U (en) | 2017-06-23 | 2017-06-23 | A kind of microalgae carbon sequestration and sewage ecological treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083322A (en) * | 2017-06-23 | 2017-08-22 | 四川省天惠能源科技有限公司 | A kind of multilayer micro algae growth equipment for breeding |
| CN114105309A (en) * | 2021-12-01 | 2022-03-01 | 北京林业大学 | Method for purifying garbage leachate by using chlorella |
-
2017
- 2017-06-23 CN CN201720740629.9U patent/CN207404942U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083322A (en) * | 2017-06-23 | 2017-08-22 | 四川省天惠能源科技有限公司 | A kind of multilayer micro algae growth equipment for breeding |
| CN114105309A (en) * | 2021-12-01 | 2022-03-01 | 北京林业大学 | Method for purifying garbage leachate by using chlorella |
| CN114105309B (en) * | 2021-12-01 | 2023-12-01 | 北京林业大学 | Method for purifying garbage leachate by using chlorella |
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