CN107151055A - A kind of method that waste water of livestock poultry environment increment is utilized - Google Patents
A kind of method that waste water of livestock poultry environment increment is utilized Download PDFInfo
- Publication number
- CN107151055A CN107151055A CN201710404290.XA CN201710404290A CN107151055A CN 107151055 A CN107151055 A CN 107151055A CN 201710404290 A CN201710404290 A CN 201710404290A CN 107151055 A CN107151055 A CN 107151055A
- Authority
- CN
- China
- Prior art keywords
- waste water
- microalgae
- hydrothermal liquefaction
- livestock poultry
- phosphorus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Botany (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention belongs to environmental protection and field of new energy technologies, and in particular to a kind of increment Application way of the waste water of livestock poultry based on microdisk electrode and hydrothermal liquefaction, comprise the following steps：1) solution after dilution is positioned in microalgae culture pool through flocculation sediment, filtering, the microalgae after domestication is inoculated in the solution by waste water of livestock poultry；2) microdisk electrode；3) hydrothermal liquefaction；4) liquid product is separated, liquefied mixture product is separated by filtration and obtains crude oil and water-phase product, hydrothermal liquefaction waste water is passed through in the microalgae culture pool in step 2 as nutrient solution supplements nitrogen, the nutriments such as phosphorus, recycle, wherein, hydrothermal liquefaction waste water is passed through in microalgae culture pool to be mixed with waste water of livestock poultry, water quality total nitrogen TN and total phosphorus TP concentration are respectively to 200~1000mg/L and 20~500mg/L in regulation microalgae culture pool, repeat step 2)~4), nitrogen in waste water of livestock poultry, the nutrients such as phosphorus can supplement nitrogen again by hydrothermal liquefaction waste water, the nutriments such as phosphorus and be recycled 3 10 times.
Description
Technical field
The invention belongs to environmental protection and field of new energy technologies, and in particular to a kind of poultry based on microdisk electrode and hydrothermal liquefaction
The increment Application way of poultry waster water.
Background technology
Waste water of livestock poultry refers to fecaluria, poultry house flushing waste water, livestock and poultry feces zymotic fluid produced during livestock and poultry cultivation etc..
Waste water of livestock poultry continues a large amount of generations rich in the pollutants such as nitrogen, phosphorus, organic carbon and heavy metal, in process of production waste water.It is such as too late
When effectively handle, pollution environment while will also cause the wasting of resources.
Both at home and abroad with cultivate microalgae mode handle waste water (waste water of livestock poultry, municipal wastewater, mine wastewater etc.) case it is big
Amount is present, and the microalgae of this kind of mode culture is referred to as waste water microalgae.Nitrogen, the phosphorus that waste water microalgae is absorbed in growth course in waste water are provided
Source, while having adsorbed plurality of heavy metal.But, prior art only focuses on carbon, hydrogen organic element in trans-utilization waste water microalgae
Utilize, and have ignored the control to major pollutants such as nitrogen, phosphorus, heavy metals and utilization.As anaerobic fermentation converts carbon, protium
For methane, hydrogen, nitrogen, phosphorus and heavy metal are still existed in zymotic fluid, if nitrogen, phosphorus enter water body and wawter bloom can be caused to jeopardize fishing
Industry develops, and heavy metal, which enters food chain, can endanger human health.
The Zhang Minghui of Zhejiang University produces the hydrogen alkane (machine of Zhang Minghui, blue algae fermentation co-producing hydrogen and methane using blue algae fermentation
Reason research：Ph.D. Dissertation, Zhejiang University, Zhejiang, 2011), hydrogen producing amount 24mL/g, methane production 84mL/g.But its is right
Nitrogen, phosphorus and heavy metal lack control and handled.
U.S. UIUC Chen (Chen, W.T., et al., Hydrothermal liquefaction of mixed~
Culture algal biomass from wastewater treatment system into bio~crude
oil.Bioresource Technology,2014.152:P.130~139.) utilize the mixing directly harvested in municipal wastewater
Algae (big algae, microalgae, bacterium etc.) has carried out the experiment that hydrothermal liquefaction prepares bio-crude oil.Experiment display, directly carries out hydro-thermal liquid
Maximum bio-crude oil yield is 49% after change, bio-crude oil based on carbon, protium, 75%~80% nitrogen with ammonia nitrogen and
The form of nitrate nitrogen enters water-phase product.But it is using bio-crude oil as target product, and phosphorus and heavy metal are lacked and controls and locates
Reason.
The content of the invention
The purpose of the present invention is to propose to a kind of waste water of livestock poultry environment increment utilization side based on microdisk electrode and hydrothermal liquefaction
Method, to solve the problem of current waste water of livestock poultry nutritional resource is utilized.
The purpose of the present invention is achieved through the following technical solutions：
A kind of method that waste water of livestock poultry environment increment is utilized, comprises the following steps：
1) clarify it through flocculation sediment waste water of livestock poultry, then filtered, remove the suspension in waste water, increase printing opacity
Rate, and then obtain filtered waste water of livestock poultry；Filtered waste water of livestock poultry is diluted, wherein, filtered waste water of livestock poultry
5~10% of the cumulative volume of solution after dilution are accounted for, the solution after dilution are positioned in microalgae culture pool, by the microalgae after domestication
It is inoculated in the solution, is cultivated under illumination condition in microalgae culture pool；
2) microdisk electrode：With the pH to 7.1 of solution in NaOH or HCl regulation microalgae culture pools, 0.5 is reached to biomass~
During 5g/L, harvesting microalgae concentrates the dewatering microalgae of harvest, and adjust moisture content to 75~90%；
3) hydrothermal liquefaction：Obtained microalgae is added in hydrothermal liquefaction reactor and carries out hydrothermal liquefaction, hydrothermal liquefaction process
Middle pressurized, heated is simultaneously stirred, initial pressure be 0~2.5MPa, agitator speed be 100~800rpm, reaction temperature be 200~
370 DEG C, the holdup time is 0~120min, and reaction collects gas-phase product after finishing cooling, and opens hydrothermal liquefaction reactor, gas
CO in phase product2More than the 90% of gas-phase product gross mass is accounted for, microalgae culture pool gas-phase product being passed through in step 2 is supplemented
CO2, recycle, carbon source provided for microalgae photosynthesis；
4) liquid product is separated：Liquefied mixture product is separated by filtration and obtains crude oil and water-phase product, wherein,
41) crude oil is dissolved using organic solvent, obtains bio-crude oil, remaining residue is that solid is residual after crude oil is dissolved
Slag, wherein containing Cu, Cr, Pb；
42) water-phase product obtained is hydrothermal liquefaction waste water, in hydrothermal liquefaction waste water, total nitrogen content is 4000~
15000mg/L, total phosphorus content is 300~10000mg/L；
Hydrothermal liquefaction waste water is passed through in the microalgae culture pool in step 2 as nutrient solution supplements the nutriments such as nitrogen, phosphorus,
Recycle, wherein, hydrothermal liquefaction waste water is passed through in microalgae culture pool to be mixed with waste water of livestock poultry, water quality in regulation microalgae culture pool
Total nitrogen TN and total phosphorus TP concentration are respectively to 200~1000mg/L and 20~500mg/L, repeat step 2)~4), in waste water of livestock poultry
The nutrients such as nitrogen, phosphorus can supplement the nutriments such as nitrogen, phosphorus again by hydrothermal liquefaction waste water and be recycled 3-10 times.
In step 1, the mode of filtering includes ultrafiltration and nanofiltration；Waste water of livestock poultry source place include chicken farm, pig farm,
The breeding wastewater of cattle farm and the anaerobic fermented liquid of methane station, waste water of livestock poultry type include Animal fecal pollution, flushing waste water and livestock and poultry
At least one of excrement dirt zymotic fluid.
In step 2, microalgae is one of chlorella, spirulina, micro- plan ball algae, Dunaliella salina, photosynthetic bacteria and mixed algae.
In step 2, dewatering microalgae condensing mode includes membrane filtration, centrifugation, flocculation.
In step 3, hydrothermal liquefaction reactor is batch reactor, semi continuous reactor or continuous reaction kettle.
In step 4, the product separate mode includes filtering, extraction, distillation, centrifugation.
In step 4, organic solvent includes acetone, toluene, dichloromethane.
In step 4, the bio-crude oil calorific value obtained is 30~40MJ/kg.
The beneficial effects of the present invention are：
1. handling waste water of livestock poultry by this method, the carbon in organic wastewater, nitrogen, phosphor resource are enriched to hydrothermal liquefaction aqueous phase
In product, and realize carbon, nitrogen, phosphorus and recycle, it is to avoid improper control and processing cause environmental pollution.
2. waste water of livestock poultry is handled by this method, by the immobilization of heavy metals in waste water of livestock poultry, it is to avoid heavy metal enters food
Thing chain endangers human health.
3. handling the nutrient reusable edible such as nitrogen, phosphorus 3-10 times in waste water of livestock poultry, waste water of livestock poultry by this method, enter
And biomass and bio-crude oil are rised in value 3-10 times.
4. generating a large amount of bio-crude oils, the increment energy is obtained while improving environment.
Brief description of the drawings
Fig. 1 is the method process flow diagram that waste water of livestock poultry environment of the present invention increment is utilized.
Embodiment
With reference to embodiment, the invention will be further elaborated, but guarantor not thereby limiting the invention
Protect scope.
As shown in figure 1, a kind of method that waste water of livestock poultry environment increment is utilized, comprises the following steps：
1) clarify it through flocculation sediment waste water of livestock poultry, then filtered, remove the suspension in waste water, increase printing opacity
Rate, and then filtered waste water of livestock poultry is obtained, wherein the mode filtered includes ultrafiltration and nanofiltration.
Filtered waste water of livestock poultry is diluted, wherein, filtered waste water of livestock poultry accounts for the cumulative volume of solution after dilution
5~10%.
Solution after dilution is positioned in microalgae culture pool, the microalgae after domestication is inoculated in the solution, illumination
Under the conditions of in microalgae culture pool cultivate.
Wherein, waste water of livestock poultry source place includes the anaerobism of chicken farm, pig farm, the breeding wastewater of cattle farm and methane station
Zymotic fluid, waste water of livestock poultry type includes at least one of Animal fecal pollution, flushing waste water and livestock and poultry feces zymotic fluid.
2) microdisk electrode：With the pH to 7.1 of solution in NaOH or HCl regulation microalgae culture pools, 0.5 is reached to biomass~
During 5g/L, harvesting microalgae concentrates the dewatering microalgae of harvest, and adjust moisture content to 75~90%.
Wherein, microalgae includes wherein the one of chlorella, spirulina, micro- plan ball algae, Dunaliella salina, photosynthetic bacteria and mixed algae
Kind.
Dewatering microalgae condensing mode includes membrane filtration, centrifugation, flocculation.
3) hydrothermal liquefaction：Obtained microalgae is added in hydrothermal liquefaction reactor and carries out hydrothermal liquefaction, hydrothermal liquefaction process
Middle pressurized, heated is simultaneously stirred.Initial pressure is 0~2.5MPa, and agitator speed is 100~800rpm, reaction temperature is 200~
370 DEG C, the holdup time is 0~120min.Reaction collects gas-phase product after finishing cooling, and opens hydrothermal liquefaction reactor, gas
CO in phase product2More than the 90% of gas-phase product gross mass is accounted for, microalgae culture pool gas-phase product being passed through in step 2 is supplemented
CO2, recycle, carbon source provided for microalgae photosynthesis.
Wherein, the hydrothermal liquefaction reactor is batch reactor, semi continuous reactor or continuous reaction kettle.
4) liquid product is separated：Liquefied mixture product is separated by filtration and obtains crude oil and water-phase product, wherein,
41) crude oil is dissolved using organic solvent, obtains bio-crude oil, bio-crude oil, which is modified, can be used as fuel after upgrading and carry
Take chemicals.Remaining residue is solid residue after crude oil is dissolved, wherein containing Cu, Cr, Pb etc., solid residue can be carried out
Immobilization of heavy metals and recycling treatment.
Wherein, the product separate mode includes but is not limited to filter, extracts, distills, centrifuging.
Organic solvent includes but is not limited to acetone, toluene, dichloromethane etc..
Obtained bio-crude oil calorific value is 30~40MJ/kg, by modified upgrading production and transport fuel and can extract chemistry
Product.
42) water-phase product obtained is hydrothermal liquefaction waste water, in hydrothermal liquefaction waste water, total nitrogen TN contents are 4000~
15000mg/L, total phosphorus TP content are 300~10000mg/L, and nitrogen phosphor resource is converted all from microalgae and obtained.
Hydrothermal liquefaction waste water is passed through in the microalgae culture pool in step 2 as nutrient solution supplements the nutriments such as nitrogen, phosphorus,
Recycle.Wherein, hydrothermal liquefaction waste water is passed through in microalgae culture pool mixes with waste water of livestock poultry, water quality in regulation microalgae culture pool
Total nitrogen TN and total phosphorus TP concentration are respectively to 200~1000mg/L and 20~500mg/L, repeat step 2)~4), in waste water of livestock poultry
The nutrients such as nitrogen, phosphorus can supplement the nutriments such as nitrogen, phosphorus again by hydrothermal liquefaction waste water and be recycled 3-10 times, enter
And biomass and bio-crude oil are rised in value 3-10 times.
In the embodiment of the present invention hydrothermal liquefaction reactor used for batch reactor (4593/HT, 100ml, Parr,
USA), 0~2.5MPa of initial pressure, reaction temperature is 220~350 DEG C.
Embodiment 1
(1) chicken manure biogas slurry is clarified after flocculation sediment, is reused UF (ultrafiltration) film and is carried out ultrafiltration, removes the suspension in waste water
Thing, increases light transmittance, and then obtain filtered chicken manure biogas slurry.
Filtered chicken manure biogas slurry is diluted, wherein, filtered chicken manure biogas slurry accounts for the cumulative volume of solution after dilution
5~10%.
Solution after dilution is positioned in microalgae culture pool, the chlorella after domestication is inoculated in solution, illumination bar
Cultivated under part in microalgae culture pool.
(2) cultivated in microalgae culture pool to biomass and harvest chlorella when being 2g/L, culture pond reclaimed water is adjusted with HCl
Microalgae moisture content is adjusted after pH to 7.1, harvest to 80 ± 0.2%, is pureed.
(3) 50ml microalgae muds are taken to add in 100ml hydrothermal liquefaction reactors, good seal reactor.The initial pressure of reactor
For 2MPa, agitator speed is 400rpm, and reactor is heated into 290~320 DEG C, keeps 0~60min, stops heating afterwards,
Reactor is cooled to after room temperature, and gas is collected first, then opens CO in reactor, gas-phase product2Account for gas-phase product gross mass
More than 90%, be passed through microalgae culture pool supplement CO2, recycle, carbon source provided for microalgae photosynthesis.
(4) liquefied mixture is collected with beaker, by qualitative filter paper suction filtration at a slow speed by the isolated crude oil of liquefied mixture
With hydrothermal liquefaction waste water：
A. acetone solution crude oil is used, and is separated by filtration solid residue.Bio-crude oil yield is 30~39.2%, solid residue
Yield is 12.35~23.2%.Cu contents are about 0.098~0.106mg/g in solid residue.
B. hydrothermal liquefaction waste water total nitrogen TN contents are 13000~15000mg/L, and total phosphorus TP contents are 1200~2500mg/
L.The hydrothermal liquefaction waste water circulation of generation is returned in microalgae culture pool, is mixed with the chicken manure biogas slurry in microalgae culture pool, and regulation is mixed
Total nitrogen TN and total phosphorus the TP concentration of liquid are respectively to 800 ± 10mg/L and 100 ± 10mg/L, repeat step in culture pond after conjunction
2)~4), continue to cultivate chlorella, moved in circles with this, the nutrient such as nitrogen, phosphorus can be useless by hydrothermal liquefaction in chicken manure biogas slurry
Water supplements the nutriments such as nitrogen, phosphorus and is recycled 9~10 times again, and then biomass and bio-crude oil are rised in value 9~10 times.
Embodiment 2
(1) pig farm water rushes excrement waste water clarifies it through flocculation sediment, then by ultrafiltration, removes the suspension in waste water,
Increase light transmittance, and then obtain filtered pig farm water and rush excrement waste water.
Excrement waste water is rushed to filtered pig farm water to be diluted, wherein, filtered pig farm water rushes excrement waste water and accounts for dilute
Release the 5~6% of the cumulative volume of rear solution.
Solution after dilution is positioned in microalgae culture pool, the spirulina after domestication is inoculated in solution, illumination bar
Cultivated under part in microalgae culture pool.
(2) cultivated in microalgae culture pool to biomass be 3.5g/L when harvest spirulina, with NaOH adjust pH value of solution to
7.1, regulation microalgae moisture content, to 85 ± 0.2%, is pureed after harvest.
(3) 45ml microalgae muds are taken to add in 100ml reactors, good seal hydrothermal liquefaction reactor.The initial pressure of reactor
For 1.5MPa, agitator speed is 350rpm, and reactor is heated into 220~290 DEG C, keeps 30min, stops heating afterwards,
Reactor is cooled to after room temperature, and gas is collected first, then opens CO in reactor, gas-phase product2Account for gas-phase product gross mass
More than 90%, be passed through microalgae culture pool supplement CO2, recycle, carbon source provided for microalgae photosynthesis.
(4) liquefied mixture is collected with beaker.By qualitative filter paper suction filtration at a slow speed by the isolated crude oil of liquefied mixture
With hydrothermal liquefaction waste water：
A. crude oil is dissolved with toluene, and is separated by filtration solid residue.Bio-crude oil yield is 24.3~26.2%, and solid is residual
Slag yield is 18.35~20.2%.Cu contents are about 0.056~0.070mg/g in solid residue, and Cr contents are 0.010~
0.016mg/g。
B. hydrothermal liquefaction waste water total nitrogen TN is 10000~11000mg/L, and total phosphorus TP is 500~700mg/L.The water of generation
Hydrothermal solution waste water circulation is returned in microalgae culture pool, is mixed with the livestock and poultry piggery wastewater in microalgae culture pool, is adjusted mixed
Total nitrogen TN and total phosphorus the TP concentration of liquid are respectively to 500 ± 10mg/L and 60 ± 10mg/L, repeat step 2 in culture pond)~4),
Continue to cultivate spirulina, moved in circles with this, pig farm water rushes the nutrient such as nitrogen, phosphorus in excrement waste water can be by hydrothermal liquefaction waste water
Supplement the nutriments such as nitrogen, phosphorus again and be recycled 3~4 times, and then biomass and bio-crude oil are rised in value 3~4 times.
Embodiment 3
(1) pig farm bubble excrement waste water clarifies it through flocculation sediment, then by nanofiltration, removes the suspension in waste water,
Increase light transmittance, and then obtain filtered pig farm bubble excrement waste water.
Filtered pig farm bubble excrement waste water is diluted, wherein, filtered pig farm bubble excrement waste water accounts for dilute
Release the 6-7% of the cumulative volume of rear solution.
Solution after dilution is positioned in microalgae culture pool, the Dunaliella salina after domestication is inoculated in solution, illumination
Under the conditions of in microalgae culture pool cultivate.
(2) cultivated in microalgae culture pool to biomass be 1.2g/L when harvest Dunaliella salina, with HCl adjust culture pond in
PH value of solution is to 7.1, and regulation microalgae moisture content, to 90 ± 0.2%, is pureed after harvest.
(3) 60ml microalgae muds are taken to add in 100ml hydrothermal liquefaction reactors, good seal reactor.The initial pressure of reactor
For 0.5MPa, agitator speed is 400rpm, and reactor is heated into 290~320 DEG C, keeps 10~60min, stops adding afterwards
Thermal response kettle is cooled to after room temperature, and gas is collected first, then opens CO in reactor, gas-phase product2Account for the total matter of gas-phase product
More than the 90% of amount, is passed through microalgae culture pool supplement CO2, recycle, carbon source provided for microalgae photosynthesis.
(4) with beaker collect liquefied mixture by qualitative filter paper suction filtration at a slow speed by the isolated crude oil of liquefied mixture and
Hydrothermal liquefaction waste water：
A. crude oil is dissolved with toluene, and is separated by filtration solid residue.Bio-crude oil yield is 17.6~19.3%, and solid is residual
Slag yield is 20.25~23.82%.Cu contents are about 0.156~0.172mg/g in solid residue；
B. hydrothermal liquefaction waste water total nitrogen TN is 7000~9000mg/L, and total phosphorus TP is 300~500mg/L.The hydro-thermal of generation
The waste water circulation that liquefies is returned in microalgae culture pool, is mixed with the bubble excrement waste water in microalgae culture pool, adjusts mixed culture
Liquid total nitrogen TN and total phosphorus TP concentration are respectively to 900 ± 10mg/L and 200 ± 10mg/L, repeat step 2 in pond)~4), continue
Dunaliella salina is cultivated, is moved in circles with this, the nutrient such as nitrogen, phosphorus can pass through hydrothermal liquefaction waste water in the bubble excrement waste water of pig farm
Supplement the nutriments such as nitrogen, phosphorus again and be recycled 5~6 times, and then biomass and bio-crude oil are rised in value 5~6 times.
Embodiment 4
(1) pig manure fermentation liquid clarifies it through flocculation sediment, then by nanofiltration, removes the suspension in waste water, and increase is saturating
Light rate, and then obtain filtered pig manure fermentation liquid.
Filtered pig manure fermentation liquid is diluted, wherein, filtered pig manure fermentation liquid account for dilution after solution it is total
The 8-9% of volume.
Solution after dilution is positioned in microalgae culture pool, by mixing microalgae (photosynthetic bacteria, microalgae, the water after domestication
Plant etc.) it is inoculated in solution, cultivated under illumination condition in microalgae culture pool.
(2) adjust pH value of solution in culture pond with HCl and, to 7.1, mixed algae is harvested when culture to biomass is 4.5g/L, harvest
Regulation microalgae moisture content, to 75 ± 0.1%, is pureed afterwards.
(3) 40ml microalgae muds are taken to add in 100ml supercritical reaction kettles, good seal reactor.The initial pressure of reactor is
2.5MPa, agitator speed is 700rpm, and reactor is heated into 330~360 DEG C, keeps 5~10min, stops heating afterwards.
Reactor is cooled to after room temperature, and gas is collected first, then opens CO in reactor, gas-phase product2Account for gas-phase product gross mass
More than 90%, be passed through microalgae culture pool supplement CO2, recycle, carbon source provided for microalgae photosynthesis.
(4) liquefied mixture is collected with beaker.By qualitative filter paper suction filtration at a slow speed by the isolated crude oil of liquefied mixture
With hydrothermal liquefaction waste water：
A. acetone solution crude oil is used, and is separated by filtration solid residue.Bio-crude oil yield is 18.3~21.2%, and solid is residual
Slag yield is 22.35~23.23%.Cu contents are about 0.026~0.050mg/g in solid residue；
B. hydrothermal liquefaction waste water total nitrogen TN is 4000~5000mg/L, and total phosphorus TP is 1200~1500mg/L.The water of generation
Hydrothermal solution waste water circulation is returned in microalgae culture pool, is mixed with the pig manure fermentation liquid in microalgae culture pool, adjusts mixed training
Liquid total nitrogen TN and total phosphorus TP concentration are respectively to 300 ± 10mg/L and 20 ± 1mg/L, repeat step 2 in foster pond)~4), continue
Culture mixing microalgae, is moved in circles, the nutrient such as nitrogen, phosphorus can again be mended by hydrothermal liquefaction waste water in pig manure fermentation liquid with this
The nutriments such as nitrogen charging, phosphorus and be recycled 6~7 times, and then biomass and bio-crude oil are rised in value 6~7 times.
Embodiment 5
(1) Cattle Wastewater clarifies it through flocculation sediment, then by ultrafiltration, removes the suspension in waste water, and increase is saturating
Light rate, and then obtain filtered Cattle Wastewater.
Filtered Cattle Wastewater is diluted, wherein, filtered Cattle Wastewater account for dilution after solution it is total
The 5-7% of volume.
Solution after dilution is positioned in microalgae culture pool, the mixed algae kind after domestication is inoculated in solution, this is mixed
Close and cultivated under Strain selection pool near cattle farm, illumination condition in microalgae culture pool.
(2) pH to 7.1 of culture pond reclaimed water is adjusted with HCl, culture to biomass harvests mixed algae when being 2g/L.After harvest
Microalgae moisture content is adjusted to 90 ± 10%, is pureed.
(3) 800ml microalgae muds are taken to add in 1800ml reactors, good seal reactor.The initial pressure of reactor is
1.0MPa, agitator speed is 750rpm, and reactor is heated into 230~250 DEG C, keeps 90~120min, stops adding afterwards
Heat.Reactor is cooled to after room temperature, and gas is collected first, then opens CO in reactor, gas-phase product2Account for the total matter of gas-phase product
More than the 90% of amount, is passed through microalgae culture pool supplement CO2, recycle, carbon source provided for microalgae photosynthesis.
(4) liquefied mixture is collected with beaker, by qualitative filter paper suction filtration at a slow speed by the isolated crude oil of liquefied mixture
With hydrothermal liquefaction waste water：
A. ether dissolution crude oil is used, and is separated by filtration solid residue.Bio-crude oil yield is 32.6~38.4%, and solid is residual
Slag yield is 13.55~15.23%.Cu contents are about 0.189~0.195mg/g in solid residue；
B. hydrothermal liquefaction waste water total nitrogen TN is 4000~6000mg/L, and total phosphorus TP is 2200~2500mg/L.The water of generation
Hydrothermal solution waste water circulation is returned in microalgae culture pool, is mixed with the Cattle Wastewater in microalgae culture pool, adjusts mixed training
Liquid total nitrogen TN and total phosphorus TP concentration are respectively to 800 ± 10mg/L and 480 ± 10mg/L, repeat step 2 in foster pond)~4), after
Continuous culture mixed algae, is moved in circles, the nutrient such as nitrogen, phosphorus can again be mended by hydrothermal liquefaction waste water in Cattle Wastewater with this
The nutriments such as nitrogen charging, phosphorus and be recycled 4~5 times, and then biomass and bio-crude oil are rised in value 4~5 times.
Claims (8)
1. a kind of method that waste water of livestock poultry environment increment is utilized, it is characterised in that：
Comprise the following steps：
1) clarify it through flocculation sediment waste water of livestock poultry, then filtered, remove the suspension in waste water, increase light transmittance,
And then obtain filtered waste water of livestock poultry；Filtered waste water of livestock poultry is diluted, wherein, filtered waste water of livestock poultry accounts for dilute
The 5~10% of the cumulative volume of rear solution are released, the solution after dilution is positioned in microalgae culture pool, the microalgae after domestication is inoculated with
In the solution, cultivated under illumination condition in microalgae culture pool；
2) microdisk electrode：With the pH to 7.1 of solution in NaOH or HCl regulation microalgae culture pools, 0.5~5g/L is reached to biomass
When, harvesting microalgae concentrates the dewatering microalgae of harvest, and adjust moisture content to 75~90%；
3) hydrothermal liquefaction：Obtained microalgae is added and carries out adding during hydrothermal liquefaction, hydrothermal liquefaction in hydrothermal liquefaction reactor
Pressure is heated and stirred, and initial pressure is 0~2.5MPa, and agitator speed is 100~800rpm, and reaction temperature is 200~370
DEG C, the holdup time is 0~120min, and reaction finishes and gas-phase product is collected after cooling, and opens hydrothermal liquefaction reactor, gas phase production
CO in thing2More than the 90% of gas-phase product gross mass is accounted for, microalgae culture pool gas-phase product being passed through in step 2 supplements CO2, follow
Ring is utilized, and carbon source is provided for microalgae photosynthesis；
4) liquid product is separated：Liquefied mixture product is separated by filtration and obtains crude oil and water-phase product, wherein,
41) crude oil is dissolved using organic solvent, obtains bio-crude oil, remaining residue is solid residue after crude oil is dissolved,
Wherein contain Cu, Cr, Pb；
42) water-phase product obtained is hydrothermal liquefaction waste water, in hydrothermal liquefaction waste water, and total nitrogen content is 4000~15000mg/L,
Total phosphorus content is 300~10000mg/L；
Hydrothermal liquefaction waste water is passed through in the microalgae culture pool in step 2 as nutrient solution supplements the nutriments such as nitrogen, phosphorus, circulation
Utilize, wherein, hydrothermal liquefaction waste water is passed through in microalgae culture pool to be mixed with waste water of livestock poultry, water quality total nitrogen in regulation microalgae culture pool
TN and total phosphorus TP concentration are respectively to 200~1000mg/L and 20~500mg/L, repeat step 2)~4), nitrogen, phosphorus in waste water of livestock poultry
The nutriments such as nitrogen, phosphorus can be supplemented again by hydrothermal liquefaction waste water Deng nutrient and be recycled 3-10 times.
2. the method that waste water of livestock poultry environment increment according to claim 1 is utilized, it is characterised in that：
In step 1, the mode of filtering includes ultrafiltration and nanofiltration；Waste water of livestock poultry source place includes chicken farm, pig farm, milk cow
The breeding wastewater of field and the anaerobic fermented liquid of methane station, waste water of livestock poultry type include Animal fecal pollution, flushing waste water and livestock and poultry feces
At least one of zymotic fluid.
3. the method that waste water of livestock poultry environment increment according to claim 1 is utilized, it is characterised in that：
In step 2, microalgae is one of chlorella, spirulina, micro- plan ball algae, Dunaliella salina, photosynthetic bacteria and mixed algae.
4. the method that waste water of livestock poultry environment increment according to claim 1 is utilized, it is characterised in that：
In step 2, dewatering microalgae condensing mode includes membrane filtration, centrifugation, flocculation.
5. the method that waste water of livestock poultry environment increment according to claim 1 is utilized, it is characterised in that：
In step 3, hydrothermal liquefaction reactor is batch reactor, semi continuous reactor or continuous reaction kettle.
6. the method that waste water of livestock poultry environment increment according to claim 1 is utilized, it is characterised in that：
In step 4, the product separate mode includes filtering, extraction, distillation, centrifugation.
7. the method that waste water of livestock poultry environment increment according to claim 1 is utilized, it is characterised in that：
In step 4, organic solvent includes acetone, toluene, dichloromethane.
8. the method that waste water of livestock poultry environment increment according to claim 1 is utilized, it is characterised in that：
In step 4, the bio-crude oil calorific value obtained is 30~40MJ/kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404290.XA CN107151055B (en) | 2017-06-01 | 2017-06-01 | Value-added utilization method for livestock and poultry wastewater environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404290.XA CN107151055B (en) | 2017-06-01 | 2017-06-01 | Value-added utilization method for livestock and poultry wastewater environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107151055A true CN107151055A (en) | 2017-09-12 |
| CN107151055B CN107151055B (en) | 2021-01-01 |
Family
ID=59795897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710404290.XA Active CN107151055B (en) | 2017-06-01 | 2017-06-01 | Value-added utilization method for livestock and poultry wastewater environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107151055B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629961A (en) * | 2017-10-16 | 2018-01-26 | 韶关学院 | A kind of method using breeding wastewater culture microalgae |
| CN108865892A (en) * | 2018-05-29 | 2018-11-23 | 深圳文科园林股份有限公司 | A method of utilizing livestock breeding biogas slurry high yield microalgae |
| CN111484191A (en) * | 2020-03-24 | 2020-08-04 | 江苏大学 | Sewage enhanced treatment method based on microalgae and hydrothermal liquefied biochar thereof |
| CN111557249A (en) * | 2020-04-08 | 2020-08-21 | 江苏大学 | Pig breeding system utilizing microalgae breeding full-life-cycle multi-element cooperation |
| CN111747794A (en) * | 2020-06-12 | 2020-10-09 | 江苏省农业科学院 | Method for preparing slow-release phosphate fertilizer by recycling phosphorus in sewage and application |
| CN112028414A (en) * | 2020-10-03 | 2020-12-04 | 南昌大学 | Biomass hydrothermal energy production process and device |
| CN112813113A (en) * | 2020-12-30 | 2021-05-18 | 兴源环境科技股份有限公司 | Method for producing bio-oil by livestock and poultry manure synergism |
| CN113736617A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Open culture device and method for treating phosphorus-containing wastewater |
| CN114669585A (en) * | 2022-03-14 | 2022-06-28 | 昆明理工大学 | Method for weathered soil and resource utilization of silicate material |
| CN116496906A (en) * | 2022-12-09 | 2023-07-28 | 北京工商大学 | Method for culturing microalgae with livestock and poultry manure and simultaneously producing biomass energy and biomass energy prepared by same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110092726A1 (en) * | 2008-06-12 | 2011-04-21 | William Severn Clarke | System for cultivation and processing of microorganisms, processing of products therefrom, and processing in drillhole reactors |
| CN102732425A (en) * | 2012-06-06 | 2012-10-17 | 中南民族大学 | Method for producing microalgae through utilizing livestock and poultry excrement primary wastewater |
| US20130236951A1 (en) * | 2012-03-07 | 2013-09-12 | National Chiao Tung University | Microalgae for Removal of Carbon Dioxide Generated from Biogas and Biogas Electric Generator |
| CN104449788A (en) * | 2013-09-13 | 2015-03-25 | 中国科学院上海高等研究院 | Method for preparing micro-algal oil by microalgae hydro-thermal liquefaction |
| WO2015044891A1 (en) * | 2013-09-26 | 2015-04-02 | Ifsttar | Viscoelastic material produced by hydrothermal liquefaction of microalgae |
| CN104762331A (en) * | 2015-03-31 | 2015-07-08 | 中国科学院南海海洋研究所 | Method and culture device for coupling biogas fermentation with microalgae culture |
| CN105062653A (en) * | 2015-08-14 | 2015-11-18 | 北京航空航天大学 | Method for preparing aviation fuel from microalgae |
| CN106673389A (en) * | 2017-01-24 | 2017-05-17 | 中国农业大学 | Heat-treatment recycling method for excrement |
-
2017
- 2017-06-01 CN CN201710404290.XA patent/CN107151055B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110092726A1 (en) * | 2008-06-12 | 2011-04-21 | William Severn Clarke | System for cultivation and processing of microorganisms, processing of products therefrom, and processing in drillhole reactors |
| US20130236951A1 (en) * | 2012-03-07 | 2013-09-12 | National Chiao Tung University | Microalgae for Removal of Carbon Dioxide Generated from Biogas and Biogas Electric Generator |
| CN102732425A (en) * | 2012-06-06 | 2012-10-17 | 中南民族大学 | Method for producing microalgae through utilizing livestock and poultry excrement primary wastewater |
| CN104449788A (en) * | 2013-09-13 | 2015-03-25 | 中国科学院上海高等研究院 | Method for preparing micro-algal oil by microalgae hydro-thermal liquefaction |
| WO2015044891A1 (en) * | 2013-09-26 | 2015-04-02 | Ifsttar | Viscoelastic material produced by hydrothermal liquefaction of microalgae |
| CN104762331A (en) * | 2015-03-31 | 2015-07-08 | 中国科学院南海海洋研究所 | Method and culture device for coupling biogas fermentation with microalgae culture |
| CN105062653A (en) * | 2015-08-14 | 2015-11-18 | 北京航空航天大学 | Method for preparing aviation fuel from microalgae |
| CN106673389A (en) * | 2017-01-24 | 2017-05-17 | 中国农业大学 | Heat-treatment recycling method for excrement |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629961A (en) * | 2017-10-16 | 2018-01-26 | 韶关学院 | A kind of method using breeding wastewater culture microalgae |
| CN108865892A (en) * | 2018-05-29 | 2018-11-23 | 深圳文科园林股份有限公司 | A method of utilizing livestock breeding biogas slurry high yield microalgae |
| CN111484191A (en) * | 2020-03-24 | 2020-08-04 | 江苏大学 | Sewage enhanced treatment method based on microalgae and hydrothermal liquefied biochar thereof |
| CN111557249A (en) * | 2020-04-08 | 2020-08-21 | 江苏大学 | Pig breeding system utilizing microalgae breeding full-life-cycle multi-element cooperation |
| CN111557249B (en) * | 2020-04-08 | 2021-12-21 | 江苏大学 | Pig breeding system utilizing microalgae breeding full-life-cycle multi-element cooperation |
| CN113736617B (en) * | 2020-05-29 | 2023-07-14 | 中国石油化工股份有限公司 | Open culture device and method for treating phosphorus-containing wastewater |
| CN113736617A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Open culture device and method for treating phosphorus-containing wastewater |
| CN111747794A (en) * | 2020-06-12 | 2020-10-09 | 江苏省农业科学院 | Method for preparing slow-release phosphate fertilizer by recycling phosphorus in sewage and application |
| CN112028414A (en) * | 2020-10-03 | 2020-12-04 | 南昌大学 | Biomass hydrothermal energy production process and device |
| CN112028414B (en) * | 2020-10-03 | 2024-04-26 | 南昌大学 | Biomass hydrothermal energy production process and device |
| CN112813113A (en) * | 2020-12-30 | 2021-05-18 | 兴源环境科技股份有限公司 | Method for producing bio-oil by livestock and poultry manure synergism |
| CN114669585B (en) * | 2022-03-14 | 2023-11-10 | 昆明理工大学 | Silicate material weathering soil and resource utilization method |
| CN114669585A (en) * | 2022-03-14 | 2022-06-28 | 昆明理工大学 | Method for weathered soil and resource utilization of silicate material |
| CN116496906A (en) * | 2022-12-09 | 2023-07-28 | 北京工商大学 | Method for culturing microalgae with livestock and poultry manure and simultaneously producing biomass energy and biomass energy prepared by same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107151055B (en) | 2021-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107151055A (en) | A kind of method that waste water of livestock poultry environment increment is utilized | |
| Ali et al. | Resource recovery from industrial effluents through the cultivation of microalgae: A review | |
| Peter et al. | Continuous cultivation of microalgae in photobioreactors as a source of renewable energy: Current status and future challenges | |
| Chuka-ogwude et al. | A review on microalgal culture to treat anaerobic digestate food waste effluent | |
| Jankowska et al. | Biogas from microalgae: Review on microalgae's cultivation, harvesting and pretreatment for anaerobic digestion | |
| Guldhe et al. | Prospects, recent advancements and challenges of different wastewater streams for microalgal cultivation | |
| Lu et al. | Critical processes and variables in microalgae biomass production coupled with bioremediation of nutrients and CO2 from livestock farms: A review | |
| Zhang et al. | Promising solutions to solve the bottlenecks in the large-scale cultivation of microalgae for biomass/bioenergy production | |
| Lam et al. | Microalgae biofuels: a critical review of issues, problems and the way forward | |
| Prajapati et al. | Phycoremediation coupled production of algal biomass, harvesting and anaerobic digestion: possibilities and challenges | |
| Mobin et al. | Biofuel production from algae utilizing wastewater | |
| NL1039442C2 (en) | Biomass conversion methods and systems. | |
| US20180119079A1 (en) | Symbiotic algae system | |
| CN205398604U (en) | Recycle thermal power plant flue gas waste heat and carbon dioxide's device | |
| CN205838808U (en) | A kind of vaccary excrement dirt collection processing system implementing | |
| Arutselvan et al. | Review on wastewater treatment by microalgae in different cultivation systems and its importance in biodiesel production | |
| CN111229792A (en) | Novel comprehensive treatment system and process for kitchen waste | |
| Li et al. | Novel bioconversions of municipal effluent and CO2 into protein riched Chlorella vulgaris biomass | |
| CN103981220B (en) | The method that a kind of hydrogen alkane fermentation coupling both culturing microalgae processes organic waste | |
| CN105417877A (en) | Novel livestock wastewater treatment process | |
| Khan et al. | Utilization of nitrogen-rich agricultural waste streams by microalgae for the production of protein and value-added compounds | |
| WO2011089019A1 (en) | Method and installation for dephosphorizing manure and/or biomass | |
| CN110194981A (en) | Sludge, microalgae are total to hydro-thermal liquefaction and waste liquid culture microalgae integration cyclic utilization system | |
| Aggarwal et al. | The state-of-the-art production of biofuel from microalgae with simultaneous wastewater treatment: influence of process variables on biofuel yield and production cost | |
| US8148120B2 (en) | Concentration and separation of lipids from renewable resources |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |