CN212246705U - Biomass hydrothermal energy production process device - Google Patents
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- CN212246705U CN212246705U CN202022211475.9U CN202022211475U CN212246705U CN 212246705 U CN212246705 U CN 212246705U CN 202022211475 U CN202022211475 U CN 202022211475U CN 212246705 U CN212246705 U CN 212246705U
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Abstract
A biomass hydrothermal energy production process device specifically comprises a fungus and microalgae bioreactor, a filter, a hydrothermal reaction kettle, a gas storage bottle, a carbon storage bottle, an oil storage bottle, a mixed gas chamber, a light source and CO2The biomass hydrothermal energy production process device is formed by a gas tank and the like and is in a semi-closed circulation mode. The process device of the utility model realizes the treatment of hydrothermal water phase wastewater in a fungus and microalgae segmented culture mode for the first time, recovers nutrient elements, cultures and harvests phycomycetes biomass, realizes the resource utilization of the hydrothermal water phase wastewater and reduces the biomass culture cost; the fungi can be cooperated with the microalgae for harvesting, and the energy consumption of microalgae harvesting is reduced; the biomass hydrothermal energy production closing device integrates biomass conversion, hydrothermal water phase wastewater treatment, water resource recovery, microorganism culture and biomass harvesting, is low in operation cost, and provides a new process device for industrial application of a biomass refining system.
Description
Technical Field
The utility model relates to a living beings hydrothermal productivity process units specifically belongs to waste water treatment and living beings productivity technical field.
Technical Field
The hydrothermal water-phase wastewater is a byproduct with the largest production amount in the hydrothermal reaction energy production technology, is rich in carbon, nitrogen, phosphorus and other nutrient elements, has high concentration and various types of organic pollutants, also contains difficultly biodegradable organic compounds (such as phenols, furan, carbon-nitrogen heterocyclic substances) and the like, and has complex components and difficult treatment; if strong alkali or adsorbent is added for treatment, the cost of the hydrothermal reaction energy production system is increased, and serious energy waste is caused. Therefore, enhancing the resource utilization of the hydrothermal water-phase wastewater becomes a hot spot of the current research. Patent 201810307976.1 proposes a method for removing nitrogen from waste water by diazotization reaction reduction, adding Ba (OH)2Or NaOH to adjust pH for precipitation removalSO4 2-And the hydrothermal waste water containing carbon and hydrogen elements is reused as the water solvent of the hydrothermal reaction, so as to recover the carbon and hydrogen organic elements in the waste water. The recycled hydrothermal wastewater after nitrogen removal can be used as a reaction solvent to effectively recover the carbon and hydrogen elements in the wastewater, but the raw material of the hydrothermal reaction does not need to be dried to contain water, so that the treatment capacity of the recycled hydrothermal wastewater is limited, and the recycled hydrothermal wastewater is not suitable for treating a large amount of hydrothermal wastewater. It is particularly pointed out that Ba (OH) is added2Or the pH value is adjusted by NaOH to generate precipitate, the precipitate needs to be treated again and cannot be discharged randomly. Xunynpeng et al (patent number: CN 201210566119.6) of the institute of chemistry and physics of the Chinese academy of sciences, proposes a method for producing bio-oil by using hydrothermal wastewater as a microalgae culture solution and carrying out microalgae circulation culture. Sanjiang construction machinery Limited company (patent number: CN 101549932A) in Qidong city proposes a production method for treating organic sewage and waste residue by anaerobic biochemical technology, then coupling algae cultivation and oil refining after aerobic biochemical treatment of sewage and biogas slurry. Nutrient elements in the hydrothermal wastewater are recycled and used for culturing microalgae, and the obtained microalgae biomass is used as a raw material for producing biofuel, so that the aim of recycling the water-phase wastewater can be fulfilled, but the wastewater contains a large amount of toxic and harmful compounds, the growth of the microalgae can be seriously inhibited, the yield of the microalgae is low, and the treatment period of the hydrothermal wastewater is long. Luhaifeng et al (patent No. 201510266963.0) of Chinese agricultural university proposes an apparatus and method for recovering nutrient elements in wastewater by combining photosynthetic bacteria and microalgae. The method comprises the steps of firstly culturing photosynthetic bacteria in hydrothermal wastewater, degrading partial organic pollutants and nutrient elements by utilizing the characteristics of high organic load tolerance of the photosynthetic bacteria and strong absorption and conversion capacity on phenols and other nitrogen-containing polycyclic aromatic hydrocarbon substances, and recovering the nutrient elements in the wastewater by a method of continuously culturing microalgae after separation by an ultrafiltration membrane, thereby improving the removal efficiency of carbon, nitrogen and phosphorus elements. However, it should be noted that the use of an ultrafiltration membrane to separate photosynthetic bacteria and microalgae in water would increase the cost of the hydrothermal wastewater recycling process and would not be economical for the hydrothermal reaction energy production technology.
At present, microalgae is called as a third-generation energy material, the hydro-thermal reaction technology can convert lipid in the microalgae into bio-oil and can also convert substances such as protein, polysaccharide and the like into bio-oil, but the microalgae cell volume is small and the harvesting cost is high. The microalgae are harvested by using a centrifugal machine and other traditional methods, although the harvesting efficiency is high, the cost of the method accounts for more than 50 percent of the commercial cost of the microalgae. Therefore, in the method for using hydrothermal wastewater for microbial cultivation and co-producing bio-oil, a new hydrothermal reaction circulation energy production system which comprehensively recovers nutrient elements of the hydrothermal wastewater, cultures microalgae to produce biofuel and recovers the microalgae with high efficiency and low consumption is needed to be developed by combining a microalgae recovery system.
The fungus is a heterotrophic microorganism which does not contain chlorophyll, is parasitic or saprophytic, has outstanding capability of treating sewage, and has good capability of removing pollutants such as refractory organic matters, heavy metals and the like and high capability of tolerating the organic matters through a large number of researches. Taking isaria fumosorosea as an example, the isaria fumosorosea can normally grow in a culture solution containing 5% microalgae hydrothermal wastewater, and the biomass increases along with the increase of the wastewater content; taking aspergillus fumigatus as an example, 20% wheat straw hydrolysate has obvious inhibition on the growth of microalgae, but has no inhibition on the growth of aspergillus fumigatus. Filamentous fungi self-flocculation balling is easy to separate from water, and can be used for cooperating with microalgae flocculation balling and harvesting, and a fungus-mediated microalgae harvesting method provided by Zhongguang et al (patent number: CN 201110329213.5) of Nanchang university is used for harvesting large-granule fungus-algae symbiont obtained by mixed culture of fungus and microalgae, and can be harvested after simple filtration. When the fungus microalgae is cultured in a mixed way, extracellular enzymes cellulase and xylanase can be secreted, and the enzymes have a pretreatment function on microalgae cells and can improve the biochemical degradation performance of the microalgae. The bacteria and algae symbiont can be used as raw material for hydrothermal reaction to produce biofuel. Two or more than two biomasses are mixed and cooperated with hydrothermal reaction, different biochemical components in the biomasses such as protein and carbohydrate and respective intermediate products thereof can be cooperated with each other, and the yield of the bio-oil and the quality of oil products are improved.
Disclosure of Invention
To solve the problems in the prior art, the utility model aims to provide a biomass hydrothermal energy production process unit.
The utility model relates to a biomass hydrothermal energy production process device which is formed by that external hydrothermal aqueous phase wastewater enters waterThe device comprises a port (1), a fungus bioreactor (2), a No. 1 filter (3-1), a No. 2 filter (3-2), a microalgae bioreactor (4), a fungus mycelium storage box (5-1), an algae bacteria storage box (5-2), a liquid storage tank (6), a circulating water pump (7), a hydrothermal reaction kettle (8), a pressurizer (9), a gas storage bottle (10), a solid-liquid separator (11), a carbon storage bottle (12), a centrifugal machine (13), an oil storage bottle (14), a cooler (15), a water tank (16), a hydrothermal aqueous phase wastewater to be treated water inlet pipe (17), a mixing air chamber (18), a No. 1 air inlet pipe (19-1), a No. 2 air inlet pipe (19-2), a No. 1 aeration disc (20-1), a No. 2 aeration disc (20-2), a fungus inoculation inlet (21), a microalgae inoculation inlet (22), No. 1 dosing port (23-1), No. 2 dosing port (23-2), air compressor (24), light source (25), reation kettle inlet pipe (26), No. 1 gas flowmeter (27-1), No. 2 gas flowmeter (27-2), No. 3 gas flowmeter (27-3), CO2The air tank (28), a No. 1 heat-insulating layer (29-1) and a No. 2 heat-insulating layer (29-2);
the side surface of the fungus bioreactor (2) is respectively connected with an external hydrothermal water phase wastewater inlet (1) with a valve, a fungus inoculation inlet (21) and a No. 1 dosing port (23-1) from top to bottom; the bottom of the fungus bioreactor (2) is respectively connected with a No. 2 air inlet pipe (19-2) and a hydrothermal aqueous phase wastewater inlet pipe (17) to be treated, and the other end of the hydrothermal aqueous phase wastewater inlet pipe (17) to be treated is connected with a discharge pipeline of a water tank (16); the other end of the No. 2 air inlet pipe (19-2) is connected with an air outlet pipeline of the flowmeter (27-3) through a valve; an air inlet pipeline of the flow meter (27-3) is connected with an air inlet pipeline of a No. 2 gas flow meter (27-2) with a valve in parallel and then is connected with an air outlet pipeline of the air compressor (24); the bottom discharge pipeline at the other side of the fungus bioreactor (2) is connected with the feed pipeline of the No. 1 filter (3-1) through a valve; a discharge pipeline at the top of the No. 1 filter (3-1) is connected with a feed pipeline of the fungal mycelium storage box (5-1), and a discharge pipeline of the fungal mycelium storage box (5-1) is connected with the microalgae bioreactor (4); the bottom of the interior of the fungus bioreactor (2) is provided with a No. 1 aeration disc (20-1), and the exterior is provided with a heat-insulating layer (29-1);
a microalgae inoculation inlet (22) and a No. 2 dosing port (23-2) are arranged on the side surface of the microalgae bioreactor (4), and a discharge pipeline on the other side surface is connected with a feed pipeline of a No. 2 filter (3-2) through a valve; a discharge pipeline of the No. 2 filter (3-2) is connected with a feed pipeline of the algae bacterium storage box (5-2) through a valve, and the discharge pipeline of the algae bacterium storage box (5-2) is communicated with the hydrothermal reaction kettle (8) after being connected with a feed pipe (26) of the reaction kettle through a valve; a discharge pipeline at the bottom of the No. 2 filter (3-2) is respectively connected with a feed pipeline of a circulating water pump (7) and a feed pipeline of a liquid storage tank (6) through valves; a discharge pipeline of the circulating water pump (7) is connected with a discharge pipeline of the centrifuge (13) in parallel and then is connected with a feed pipeline of the cooler (15); the discharge pipeline of the cooler (15) is connected with the feed pipeline of the water tank (16) through a valve; the gas inlet pipeline at the bottom of the microalgae bioreactor (4) is connected with the gas outlet pipeline of the mixing gas chamber (18); one side of the mixing air chamber (18) is connected with an air outlet pipeline of a No. 2 gas flowmeter (27-2), the other side of the mixing air chamber is connected with an air outlet pipeline of a No. 1 gas flowmeter (27-1), and the air inlet pipeline of the No. 1 gas flowmeter (27-1) is connected with a gas storage bottle (10) and CO through a valve2The air outlet pipeline of the air tank (28) is connected; a No. 2 aeration disc (20-2) is arranged at the bottom inside the microalgae bioreactor (4), and a heat-insulating layer (29-2) is arranged outside the microalgae bioreactor;
a discharge pipeline of the hydrothermal reaction kettle (8) is connected with a feed pipeline of the solid-liquid separator (11), one discharge pipeline of the solid-liquid separator (11) is connected with a feed pipeline of the carbon storage bottle (12) through a valve, and the other discharge pipeline is connected with a feed pipeline of the centrifuge (13) through a pipeline; one discharge pipeline of the centrifuge (13) is connected with a feed pipeline of the oil storage bottle (14) through a valve, and the other discharge pipeline is connected with a discharge pipeline of the circulating water pump (7) in parallel; an air outlet pipeline of the hydrothermal reaction kettle (8) is connected with an air inlet pipeline of the pressurizer (9) through a valve and then communicated with an air inlet pipeline of the gas storage bottle (10) through a pipeline; an air outlet pipeline of the gas storage bottle (10) is connected with an air inlet pipeline of the No. 1 gas flowmeter (27-1) through a valve.
The utility model has the advantages that:
1. the process device of the utility model realizes the treatment of hydrothermal water phase wastewater in a fungus and microalgae segmented culture mode for the first time, recovers nutrient elements, cultures and harvests phycomycetes biomass, realizes the resource utilization of the hydrothermal water phase wastewater and reduces the biomass culture cost;
2. the utility model can realize the harvesting of fungi and microalgae in coordination, and reduce the energy consumption of microalgae harvesting;
3. the utility model discloses process units novel structure, living beings hydrothermal productivity closing device system collect biomass conversion, hydrothermal aqueous phase waste water treatment, water resource recovery, microbial cultivation, living beings are gathered as an organic wholely, reduce the cost of whole productivity system, especially less the input that living beings were cultivateed and living beings were gathered, provide a new process units for the industrialization of biomass refining system is used.
Drawings
FIG. 1 is a schematic diagram of the biomass hydrothermal energy production process of the present invention;
in the figure: 1. an external hydrothermal water-phase wastewater inlet; 2. a fungal bioreactor; filter No. 3-1, 1; no. 3-2 and No. 2 filters; 4. a microalgae bioreactor; 5-1, a fungal mycelium storage box; 5-2, an algae and bacteria storage box; 6. a liquid storage tank; 7. a water circulating pump; 8. a hydrothermal reaction kettle; 9. a press; 10. a gas cylinder; 11. a solid-liquid separator; 12. a carbon storage bottle; 13. a centrifuge; 14. an oil storage bottle; 15. a cooler; 16. a water tank; 17. a hydrothermal water phase wastewater inlet pipe to be treated; 18. a mixing gas chamber; 19-1, No. 1 air inlet pipe; 19-2 and No. 2 air inlet pipes; no. 1, 20-1 aeration disc; no. 20-2 and No. 2 aeration discs; 21. a fungus inoculation inlet; 22. a microalgae inoculation inlet; no. 23-1 and No. 1 medicine adding openings; no. 23-2 and No. 2 medicine adding openings; 24. an air compressor; 25. a light source; 26. a feed inlet of the reaction kettle; 27-1, gas flowmeter # 1; 27-2, No. 2 gas flow meter; and 27-3, No. 3 gas flow meters; 28. CO 22A gas tank; no. 29-1 and No. 1 heat-insulating layers; no. 29-2 and No. 2 heat-insulating layers.
Detailed Description
Example 1
A biomass hydrothermal energy-producing process device comprises an external hydrothermal water-phase wastewater inlet (1) and a fungus bioreactor (2)The device comprises a filter 1 (3-1), a filter 2 (3-2), a microalgae bioreactor (4), a fungal mycelium storage box 5-1, a phycomycete storage box 5-2, a liquid storage tank 6, a circulating water pump 7, a hydrothermal reaction kettle 8, a pressurizer 9, a gas storage bottle 10, a solid-liquid separator 11, a carbon storage bottle 12, a centrifuge 13, an oil storage bottle 14, a cooler 15, a water tank 16, a hydrothermal water phase wastewater to be treated inlet pipe 17, a mixing air chamber 18, an air inlet pipe 1 (19-1), an air inlet pipe 2 (19-2), an aeration disc 1 (20-1), an aeration disc 2 (20-2), a fungal inoculation inlet 21, a microalgae inoculation inlet 22, a dosing port 1 (23-1), No. 2 dosing port (23-2), air compressor (24), light source (25), reaction kettle feeding pipe (26), No. 1 gas flowmeter (27-1), No. 2 gas flowmeter (27-2), No. 3 gas flowmeter (27-3) and CO2The air tank (28), a No. 1 heat-insulating layer (29-1) and a No. 2 heat-insulating layer (29-2);
the side surface of the fungus bioreactor (2) is respectively connected with an external hydrothermal water phase wastewater inlet (1) with a valve, a fungus inoculation inlet (21) and a No. 1 dosing port (23-1) from top to bottom; the bottom of the fungus bioreactor (2) is respectively connected with a No. 2 air inlet pipe (19-2) and a hydrothermal aqueous phase wastewater inlet pipe (17) to be treated, and the other end of the hydrothermal aqueous phase wastewater inlet pipe (17) to be treated is connected with a discharge pipeline of a water tank (16); the other end of the No. 2 air inlet pipe (19-2) is connected with an air outlet pipeline of the flowmeter (27-3) through a valve; an air inlet pipeline of the flow meter (27-3) is connected with an air inlet pipeline of a No. 2 gas flow meter (27-2) with a valve in parallel and then is connected with an air outlet pipeline of the air compressor (24); the bottom discharge pipeline at the other side of the fungus bioreactor (2) is connected with the feed pipeline of the No. 1 filter (3-1) through a valve; a discharge pipeline at the top of the No. 1 filter (3-1) is connected with a feed pipeline of the fungal mycelium storage box (5-1), and a discharge pipeline of the fungal mycelium storage box (5-1) is connected with the microalgae bioreactor (4); the bottom of the interior of the fungus bioreactor (2) is provided with a No. 1 aeration disc (20-1), and the exterior is provided with a heat-insulating layer (29-2);
microalgae bioreactor (4)The side surface of the device is provided with a microalgae inoculation inlet (22) and a No. 2 dosing port (23-2), and a discharge pipeline on the other side surface is connected with a feed pipeline of a No. 2 filter (3-2) through a valve; a discharge pipeline of the No. 2 filter (3-2) is connected with a feed pipeline of the algae bacterium storage box (5-2) through a valve, and the discharge pipeline of the algae bacterium storage box (5-2) is communicated with the hydrothermal reaction kettle (8) after being connected with a feed pipe (26) of the reaction kettle through a valve; a discharge pipeline at the bottom of the No. 2 filter (3-2) is respectively connected with a feed pipeline of a circulating water pump (7) and a feed pipeline of a liquid storage tank (6) through valves; a discharge pipeline of the circulating water pump (7) is connected with a discharge pipeline of the centrifuge (13) in parallel and then is connected with a feed pipeline of the cooler (15); the discharge pipeline of the cooler (15) is connected with the feed pipeline of the water tank (16) through a valve; the gas inlet pipeline at the bottom of the microalgae bioreactor (4) is connected with the gas outlet pipeline of the mixing gas chamber (18); one side of the mixing air chamber (18) is connected with an air outlet pipeline of a No. 2 gas flowmeter (27-2), the other side of the mixing air chamber is connected with an air outlet pipeline of a No. 1 gas flowmeter (27-1), and the air inlet pipeline of the No. 1 gas flowmeter (27-1) is connected with a gas storage bottle (10) and CO through a valve2The air outlet pipeline of the air tank (28) is connected; a No. 2 aeration disc (20-2) is arranged at the bottom inside the microalgae bioreactor (4), and a heat-insulating layer (29-2) is arranged outside the microalgae bioreactor;
a discharge pipeline of the hydrothermal reaction kettle (8) is connected with a feed pipeline of the solid-liquid separator (11), one discharge pipeline of the solid-liquid separator (11) is connected with a feed pipeline of the carbon storage bottle (12) through a valve, and the other discharge pipeline is connected with a feed pipeline of the centrifuge (13) through a pipeline; one discharge pipeline of the centrifuge (13) is connected with a feed pipeline of the oil storage bottle (14) through a valve, and the other discharge pipeline is connected with a discharge pipeline of the circulating water pump (7) in parallel; an air outlet pipeline of the hydrothermal reaction kettle (8) is connected with an air inlet pipeline of the pressurizer (9) through a valve and then communicated with an air inlet pipeline of the gas storage bottle (10) through a pipeline; an air outlet pipeline of the gas storage bottle (10) is connected with an air inlet pipeline of the No. 1 gas flowmeter (27-1) through a valve.
Example 2
The side surface of a fungus bioreactor (2) of the biomass hydrothermal energy-generating device is respectively connected with an external hydrothermal water-phase wastewater inlet (1), a fungus inoculation inlet (21) and a No. 1 dosing port (23-1) from top to bottom; the bottom of the fungus bioreactor (2) is respectively connected with a No. 2 air inlet pipe (19-2) and a hydrothermal water phase wastewater inlet pipe (17) to be treated; the other end of the No. 2 air inlet pipe (19-2) is connected with an air outlet pipeline of a flow meter (27-3) through a valve, and an air inlet pipeline of the flow meter (27-3) is connected with an air inlet pipeline of the No. 2 gas flow meter (27-2) with the valve in parallel and then connected with an air outlet pipeline of an air compressor (24); the gas in the No. 2 gas inlet pipe (19-2) is aerated for the fungus bioreactor (2) by an aeration disc (20-1); the bottom discharge pipeline at the other side of the fungus bioreactor (2) is connected with the feed pipeline of the No. 1 filter (3-1) through a valve; fungal mycelia collected by the No. 1 filter (3-1) enter a fungal mycelia storage box (5-1) through a pipeline, and the filtered first-stage purified water enters a microalgae bioreactor (4) through a pipeline; the other end of the hydrothermal water phase wastewater to be treated inlet pipe (17) is connected with the water tank (16) discharge pipe, and the hydrothermal water phase wastewater to be treated is sent into the fungus bioreactor (2);
a microalgae inoculation inlet (22) and a No. 2 dosing port (23-2) are arranged on the side surface of the microalgae bioreactor (4), and a discharge pipeline on the other side surface is connected with a feed pipeline of a No. 2 filter (3-2) through a valve; fungus mycelia in the fungus mycelium storage box (5-1) and first-stage purified water generated by the No. 1 filter (3-1) respectively enter the microalgae bioreactor (4) through pipelines; the bottom of the microalgae bioreactor (4) is connected with a mixing air chamber (18) through a pipeline, and air from an air compressor (24) and hydrothermal waste gas and CO from a No. 1 gas flowmeter (27-1)2The mixed gas is mixed in a mixing air chamber (18), then enters a microalgae bioreactor (4) through a pipeline and is aerated through a No. 2 aeration disc (20-2); the microalgae bioreactor (4) is made of organic glass, the top and the periphery of the microalgae bioreactor can be transparent to light and is irradiated by a light source (25);
the phycomycete biomass filtered by the No. 2 filter (3-2) enters the phycomycete storage tank (5-2) through a discharge pipeline and a valve, and the filtered residual second-stage purified water respectively enters the liquid storage tank (6) and the circulating water pump (7) through the discharge pipeline and the valve; the second-stage purified water entering the liquid storage tank (6) is discharged outside, the second-stage purified water entering the circulating water pump (7) is combined with hydrothermal water-phase wastewater to be treated from the centrifugal machine (13) in a pipeline, enters a cooler (15) together for cooling, and then enters a water tank (16) through a pipeline;
phycomycete biomass in the phycomycete storage tank (5-2) enters a hydrothermal reaction kettle (8) through a valve and a reaction kettle feeding pipe (26) for hydrothermal reaction, a product is separated by a solid-liquid separator (11), obtained solid-phase hydrothermal carbon enters a carbon storage bottle (12) through a pipeline and the valve, a liquid phase enters a centrifuge (13) through the pipeline, separated biological oil enters an oil storage bottle (14) for collection, and residual hydrothermal water-phase wastewater to be treated is collected with second-stage purified water in the pipeline and then enters a cooler (15); hydrothermal gas generated in the hydrothermal reaction process enters a pressurizer (9) through a pipeline, and enters a gas storage bottle (10) after pressurization; the hydrothermal waste gas collected by the gas storage cylinder (10) is mixed with CO in a pipeline2CO released from the gas tank (28)2The gas is collected and enters the mixing air chamber (18) through a pipeline and a No. 1 gas flowmeter (27-1).
Example 3
By adopting the process device, the chlorella powder is used as the raw material, hydrothermal carbonization reaction is carried out under the conditions of 300 ℃ and 7.5-8 MPa, the reaction time is 30 minutes, and the product is bio-oil, hydrothermal carbon, hydrothermal gas and hydrothermal water-phase wastewater. The yield of bio-oil was 35.5%, the yield of aqueous phase was 97.4%, the yield of hydrothermal carbon was 2.4%, and hydrothermal gas was negligible. The water quality condition of the hydrothermal water-phase wastewater is as follows: the ammonia nitrogen concentration is 5710 mg/L, the total nitrogen concentration is 7826 mg/L, the chemical oxygen demand concentration is 75000 mg/L, and the value of total phosphorus 684 mg/L, pH is 8.75 +/-0.25.
Diluting the hydrothermal water-phase wastewater by 10 times, inoculating fungi for culture, and inoculating microalgae for treatment after culturing for 8 days, wherein the treatment result is as follows: the total nitrogen removal rate is 52.85%, the total phosphorus removal rate is 98.53%, the COD removal rate is 58.62%, and the ammonia nitrogen removal rate is 45.21%. The recovery ratio of the fungal mycelium and the microalgae is over 90 percent, and the biomass yield of the phycomycetes in the hydrothermal aqueous phase wastewater is about 0.80 g/L.
Claims (1)
1. A biomass hydrothermal energy production process unit is characterized in that: the device comprises an external hydrothermal water phase wastewater inlet (1), a fungus bioreactor (2), a No. 1 filter (3-1), a No. 2 filter (3-2), a microalgae bioreactor (4), a fungus mycelium storage box (5-1), an algae bacteria storage box (5-2), a liquid storage tank (6), a circulating water pump (7), a hydrothermal reaction kettle (8), a pressurizer (9), a gas storage bottle (10), a solid-liquid separator (11), a carbon storage bottle (12), a centrifuge (13), a gas storage bottle (14), a cooler (15), a water tank (16), a hydrothermal water phase wastewater inlet pipe (17) to be treated, a mixing air chamber (18), a No. 1 air inlet pipe (19-1), a No. 2 air inlet pipe (19-2), a No. 1 aeration disc (20-1), a No. 2 aeration disc (20-2), a fungus inoculation inlet (21), Microalgae inoculation inlet (22), No. 1 dosing port (23-1), No. 2 dosing port (23-2), air compressor (24), light source (25), reaction kettle feeding pipe (26), No. 1 gas flowmeter (27-1), No. 2 gas flowmeter (27-2), No. 3 gas flowmeter (27-3), CO2The air tank (28), a No. 1 heat-insulating layer (29-1) and a No. 2 heat-insulating layer (29-2);
the side surface of the fungus bioreactor (2) is respectively connected with an external hydrothermal water phase wastewater inlet (1) with a valve, a fungus inoculation inlet (21) and a No. 1 dosing port (23-1) from top to bottom; the bottom of the fungus bioreactor (2) is respectively connected with a No. 2 air inlet pipe (19-2) and a hydrothermal aqueous phase wastewater inlet pipe (17) to be treated, and the other end of the hydrothermal aqueous phase wastewater inlet pipe (17) to be treated is connected with a discharge pipeline of a water tank (16); the other end of the No. 2 air inlet pipe (19-2) is connected with an air outlet pipeline of the flowmeter (27-3) through a valve; an air inlet pipeline of the flow meter (27-3) is connected with an air inlet pipeline of a No. 2 gas flow meter (27-2) with a valve in parallel and then is connected with an air outlet pipeline of the air compressor (24); the bottom discharge pipeline at the other side of the fungus bioreactor (2) is connected with the feed pipeline of the No. 1 filter (3-1) through a valve; a discharge pipeline at the top of the No. 1 filter (3-1) is connected with a feed pipeline of the fungal mycelium storage box (5-1), and a discharge pipeline of the fungal mycelium storage box (5-1) is connected with the microalgae bioreactor (4); the bottom of the interior of the fungus bioreactor (2) is provided with a No. 1 aeration disc (20-1), and the exterior is provided with a heat-insulating layer (29-1);
a microalgae inoculation inlet (22) and a No. 2 dosing port (23-2) are arranged on the side surface of the microalgae bioreactor (4), and a discharge pipeline on the other side surface is connected with a feed pipeline of a No. 2 filter (3-2) through a valve; a discharge pipeline of the No. 2 filter (3-2) is connected with a feed pipeline of the algae bacterium storage box (5-2) through a valve, and the discharge pipeline of the algae bacterium storage box (5-2) is communicated with the hydrothermal reaction kettle (8) after being connected with a feed pipe (26) of the reaction kettle through a valve; a discharge pipeline at the bottom of the No. 2 filter (3-2) is respectively connected with a feed pipeline of a circulating water pump (7) and a feed pipeline of a liquid storage tank (6) through valves; a discharge pipeline of the circulating water pump (7) is connected with a discharge pipeline of the centrifuge (13) in parallel and then is connected with a feed pipeline of the cooler (15); the discharge pipeline of the cooler (15) is connected with the feed pipeline of the water tank (16) through a valve; the gas inlet pipeline at the bottom of the microalgae bioreactor (4) is connected with the gas outlet pipeline of the mixing gas chamber (18); one side of the mixing air chamber (18) is connected with an air outlet pipeline of a No. 2 gas flowmeter (27-2), the other side of the mixing air chamber is connected with an air outlet pipeline of a No. 1 gas flowmeter (27-1), and the air inlet pipeline of the No. 1 gas flowmeter (27-1) is connected with a gas storage bottle (10) and CO through a valve2The air outlet pipeline of the air tank (28) is connected; a No. 2 aeration disc (20-2) is arranged at the bottom inside the microalgae bioreactor (4), and a heat-insulating layer (29-2) is arranged outside the microalgae bioreactor;
a discharge pipeline of the hydrothermal reaction kettle (8) is connected with a feed pipeline of the solid-liquid separator (11), one discharge pipeline of the solid-liquid separator (11) is connected with a feed pipeline of the carbon storage bottle (12) through a valve, and the other discharge pipeline is connected with a feed pipeline of the centrifuge (13) through a pipeline; one discharge pipeline of the centrifuge (13) is connected with a feed pipeline of the oil storage bottle (14) through a valve, and the other discharge pipeline is connected with a discharge pipeline of the circulating water pump (7) in parallel; an air outlet pipeline of the hydrothermal reaction kettle (8) is connected with an air inlet pipeline of the pressurizer (9) through a valve and then communicated with an air inlet pipeline of the gas storage bottle (10) through a pipeline; an air outlet pipeline of the gas storage bottle (10) is connected with an air inlet pipeline of the No. 1 gas flowmeter (27-1) through a valve.
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| CN112028414B (en) * | 2020-10-03 | 2024-04-26 | 南昌大学 | Biomass hydrothermal energy production process and device |
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