CN113202071A - Novel blue algae fishing and dehydrating process mediated by lightweight organic matters - Google Patents
Novel blue algae fishing and dehydrating process mediated by lightweight organic matters Download PDFInfo
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- CN113202071A CN113202071A CN202110436840.2A CN202110436840A CN113202071A CN 113202071 A CN113202071 A CN 113202071A CN 202110436840 A CN202110436840 A CN 202110436840A CN 113202071 A CN113202071 A CN 113202071A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
- B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/26—Permeable casings or strainers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/32—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
- E02B15/104—Conveyors; Paddle wheels; Endless belts
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- 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
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Abstract
The invention discloses a novel blue algae fishing and dehydrating process mediated by lightweight organic matters, which comprises the following steps: s1, crushing the biological organic material into 1-50mm fine powder serving as an algae catching medium; s2, throwing the algae catching medium into the surface of the cyanobacterial bloom, wherein the algae catching medium is fully contacted with the cyanobacterial under the action of wind waves to adhere and accumulate the cyanobacterial; and S3, sucking the algae medium flocculate, fully and uniformly mixing the algae medium flocculate with the organic medium powder again, and conveying the mixture to a dehydration forming system for deep compression dehydration. The novel technology for salvaging and dehydrating the blue algae mediated by the lightweight organic matters can adopt a floating platform, a movable enclosure is used for collecting algae, a special movable integrated movable operation platform is used according to the combined installation requirements of salvaging, uniformly mixing and dehydrating equipment, the convenience of quick moving operation is realized, the transportation of a solid algae-mediated mixture formed by compression and dehydration is convenient, and the combustion efficiency is high.
Description
Technical Field
The invention belongs to the technical field of ecological restoration and resource utilization of environment treatment water, and particularly relates to light organic medium and blue-green algae salvaging and dewatering process equipment and a technical scheme for resource utilization production of garden green waste and agricultural waste.
Background
Along with the development of urbanization and industrialization, the eutrophication level of urban lakes is more and more serious, the outbreak risk of algal blooms in water bodies caused by eutrophication is high, the phenomenon of large-area outbreak of the algal blooms in large-scale eutrophic lakes such as the yunnan lake, the nested lake and the Taihu lake occurs sometimes, the current treatment of the algal blooms is reported from various biological, chemical and physical process methods, the most effective and feasible control means is to guide the algal blooms to a thicker cyanobacteria bay accumulation area by utilizing a soft barricade under the action of a wind field and pump the upper layer algal liquid to a tank truck or convey the algal liquid to an algae-water separation station for preliminary treatment by adopting a floating water pump.
The water content in the cyanobacteria cells is more than 95 percent, the water content of the pumped algae liquid is higher, and further algae-laden water separation is needed; the traditional method comprises the steps of filtering the bloom-forming cyanobacteria by a sieve, removing large-particle impurities, adding a flocculating agent and an auxiliary agent (the flocculating agent is PAC, PAM, ferrous sulfate and the like which are usually adopted) into filtrate, uniformly stirring, pumping the algae slurry to be dehydrated into centrifugal equipment through a pipeline, adding the flocculating agent for adjustment, performing centrifugal dehydration to obtain algae mud with the water content of 85-90%, discharging the algae mud through a discharge port, and using the algae mud for fermentation to generate methane or directly transporting the algae mud to an incineration plant for incineration treatment.
Due to the implementation of the newly revised solid waste method, the requirement on waste classification is more strict, and along with the advance of urban fine management, the treatment of green waste generated in the processes of pruning, transplanting and the like of urban landscaping becomes a problem to be solved urgently. The traditional agricultural wastes can be composted and fermented in wide rural lands to produce organic fertilizers, the organic fertilizers are returned to the fields to realize resource utilization, the urban green wastes are difficult to realize resource utilization due to the fact that the land occupation, urban management, transportation cost and other restrictive factors are more, and the traditional treatment method is landfill or incineration treatment.
How to effectively combine garden green waste treatment with the salvage of blue algae in the coastal lake type cities to realize efficient and environment-friendly resource utilization becomes an urgent problem to be solved in the fine management of the coastal lake type cities.
Disclosure of Invention
In order to effectively combine the coastal lake type urban garden green waste and agricultural waste with the blue-green algae salvage and realize the ecological environment-friendly low-carbon resource utilization of the garden green waste and the agricultural waste, the invention provides a novel blue-green algae salvage and dehydration process technical method mediated by light organic matters.
The novel blue algae fishing and dehydrating equipment mediated by the lightweight organic matters comprises the following six core parts:
(1) the device comprises an integrated production system for lightweight organic media, (2) a medium in-situ sprinkling hydrodynamic coupling adsorption technology, (3) an algae-medium flocculate collecting system, (4) an algae-water and medium mechanical mixing system, (5) an algae-medium mixture deep dehydration forming system and (6) an integrated rapid moving operation platform.
Integrated production system of lightweight organic medium: the method is characterized in that branches, trunks, leaves, grass residues of lawn trimming, corncobs, rice husks, straws, corn stalks and bamboos which are trimmed by greening maintenance are respectively adopted as raw materials, and fine powder with a certain particle size of 5-50mm is processed to be used as an algae catching medium, and each medium can be used independently or mixed in any proportion. According to different material characteristics, fine powder organic matter materials with large specific gravity of trunks and branches need to select specific EM and ferment bacterium compound strains and 2-6 kg/cube of urea, fermentation is set to aerobic fermentation for 10-30 days, and light organic media are obtained after decomposition. The main core components of the integrated production system of the light organic medium comprise a conveyor belt, crushing equipment and organic medium packing equipment; the material to be crushed is conveyed into crushing equipment through a conveying belt, and the crushed material is packaged through organic medium packaging equipment.
The medium in-situ sprinkling hydrodynamic coupling adsorption technology comprises the following steps: the method comprises the steps of taking processed organic media with the particle size of 5-50mm as natural algae-capturing flocculation materials, adopting developed throwing equipment to uniformly throw the organic media on a water surface with serious bloom of blue-green algae, utilizing hydrodynamic coupling effect of wind waves to realize full adhesion and capture of algae particles by the media, adjusting the using amount of the organic media according to algae biomass and taking the algae-capturing capacity of different organic matters as a reference, wherein the algae-capturing parameter of the organic matters per gram of dry basis is 106And (4) algae cells. Conveying the packaged organic medium to a throwing device through a conveying beltAnd the conveying belt and the throwing equipment are arranged on the ship body.
Algal medium floc collection system: the organic medium thrown in situ fully contacts with the blue algae under the action of wind waves to adhere and accumulate the blue algae, the algae medium floc is sucked by the algae medium floc collecting system and is conveyed to the algae medium mixture deep dehydration forming system for deep compression dehydration. The spreading arm type algae medium flocculate collecting system mainly comprises an algae sucking pump, a water inlet hole and a collecting arm. The algae suction pump is connected with a plurality of collecting arms, and the collecting arms are provided with a plurality of water inlet holes.
Algae water and medium mechanical mixing system: according to the algae biomass, based on the algae capturing capacity parameters of different organic matters, the flow rate of the algae liquid and the feeding speed of the organic matter material are adjusted, and the algae liquid and the organic medium are fully and uniformly mixed and transmitted to a dehydration forming system by using developed stirring equipment to carry out filter pressing, dehydration and drying on the algae medium mixture. The blending system mainly comprises an organic medium feeding inlet, a screw feeding machine, stirring equipment, an algae-media mixture discharging port, a feeding motor and a stirring motor. The feeding motor drives the screw feeding machine to convey media into the stirring equipment, and the screw feeding machine is provided with an organic medium feeding inlet; the algae sucking pump sucks algae liquid into stirring equipment, and the stirring equipment is provided with a stirring motor and an algae medium mixture discharge port;
algae medium mixture deep dehydration molding system: the algae medium mixture is subjected to filter pressing and dehydration by special equipment, is compressed to form dried algae residues or algae cakes, and is quickly packaged to form the algae cakes or algae blocks with specific specifications, which are convenient to carry and operate. The algae-media mixture deep dehydration forming system mainly comprises an algae-media mixture storage tank, a screw feeder, a movable pressure lever, a squeezing disc, a movable filter cover, a water filtering hole, a rotatable tray and a rotating shaft.
The mixture in the algae-media mixture storage tank is conveyed to a special dehydration forming system through a screw feeder to be subjected to filter pressing dehydration, the dehydration forming system comprises a movable filter cover, a movable pressure rod and a squeezing disc, water filtering holes are formed in the movable filter cover, the dehydrated algae cakes are placed on rotatable trays, and the rotatable trays are arranged through rotating shafts.
The integrated fast moving operation platform of the invention comprises: the floating platform is adopted, the movable enclosure collects algae, the specially-made movable integrated movable operation platform is specially used according to the combined installation requirements of fishing, uniformly mixing and dehydrating equipment, when a large amount of blue algae blooms appear in lakes, the operation can be quickly carried out, and the single-ship operation capacity reaches 10000m2And/h, compared with the traditional salvage method, the salvage rate is reduced by 30 percent. The problem of conventional salvage and emergent environmental management is solved, realize rapid, accurate, removal operation mode, the lake is gone up the removal operation and can be practiced thrift land resource and occupy, and removal moving platform includes that algae is situated between flocculation collection system, algae water and medium machinery mixing system, algae and is situated between mixture degree of depth dewatering system, the organic medium that packs, integration rapid removal operation platform, screw rod material loading machine.
The invention has the important significance that pure natural light organic matters are used as a mediating material, algae groups are captured by utilizing the adsorbability of the surface of a medium, pseudo-vacuoles and walls of blue-green algae cells are damaged by utilizing fiber spikes in the compression process, the integration of in-situ capture, dehydration and molding of the blue-green algae is realized, and the transportation cost of a blue-green algae slurry tank truck and the secondary pollution risk of a flocculant of algae mud dehydration tail water are effectively reduced. The technology has the advantages that the technology has the convenience of fast moving operation, the solid algae medium mixture formed by compression and dehydration is more convenient to package and transport, the combustion value of algae medium solid block masses is increased by two times due to the mixing of organic media, the combustion efficiency is improved, the energy consumption is reduced, algae toxins can be thoroughly removed through combustion treatment, and the harmless treatment is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an integrated production system for lightweight organic media;
FIG. 2 is a schematic view of the configuration of the sprinkler system;
FIG. 3 is a collection system for algal medium flocs;
FIG. 4 is a schematic structural view of a mechanical mixing system for algae water and a medium;
FIG. 5 is a schematic view of a deep dehydration molding system for algae-media mixture;
FIG. 6 is a top view of the rotating tray;
fig. 7 is a schematic structural diagram of an integrated fast moving work platform.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
A novel blue algae fishing and dehydrating process mediated by lightweight organic matters comprises the following steps:
s1, mixing and crushing the branches, corn straws and leaves subjected to greening maintenance pruning into 1-50mm fine powder according to a ratio of 1:1:1, carrying out aerobic fermentation for 15 days by using EM (effective microorganisms), ferment bacteria composite strains and urea of 2-6 kg/cube, and obtaining a lightweight organic medium serving as an algae catching medium after decomposition;
s2, throwing the algae catching medium into the surface of the cyanobacterial bloom, wherein the algae catching medium is fully contacted with the cyanobacterial under the action of wind waves to adhere and accumulate the cyanobacterial;
and S3, sucking the algae medium flocculate, fully and uniformly mixing the algae medium flocculate with the organic medium powder again, and conveying the mixture to a dehydration forming system for deep compression dehydration.
Adopt exhibition arm-type algae-mediated flocculation thing collecting system to extract when suction algae-mediated flocculation thing, exhibition arm-type algae-mediated flocculation thing collecting system mainly includes the collection arm, and the algae pump is connected with a plurality of collection arm, is provided with a plurality of on the collection arm and goes into the water hole.
FIG. 1 is a schematic diagram of an integrated production system for lightweight organic media; the main core components of the integrated production system for the lightweight organic medium comprise a conveyor belt 1, a crushing device 2 and an organic medium packing device 3; the material to be crushed is fed into a crushing device 2 through a conveyor belt 1, and is packed through an organic medium packing device 3 after being crushed.
FIG. 2 is a schematic view of the configuration of the sprinkler system; the throwing system comprises a throwing conveying belt 4, a packaged organic medium 5, a throwing device 6 and a ship body 7; delivering the packaged organic medium 5 to a throwing device 6 through a throwing conveyor belt 4; both the casting conveyor 5 and the casting device 6 are placed on the hull 7.
FIG. 3 is a collection system for spread arm algae-based flocs; the spreading arm type algae medium flocculate collecting system mainly comprises an algae sucking pump 8, a water inlet hole 9 and a collecting arm 10. The algae suction pump 8 is connected with a plurality of collecting arms 10, and the collecting arms 10 are provided with a plurality of water inlet holes 9.
FIG. 4 is a schematic structural view of a mechanical mixing system for algae water and a medium; the algae water and medium mechanical blending system mainly comprises an algae suction pump 11, an organic medium feeding inlet 12, a screw feeder 13, a stirring device 14, an algae medium mixture discharging port 15, a feeding motor 16 and a stirring motor 17; the feeding motor 16 drives the screw feeder 12 to convey the organic medium into the stirring device 14, and the screw feeder 13 is provided with an organic medium feeding inlet 12; the algae sucking pump 11 sucks algae liquid into the stirring equipment 14, and the stirring equipment 14 is provided with a stirring motor 16 and an algae medium mixture discharge port 15.
FIG. 5 is a schematic view of a deep dehydration molding system for algae-media mixture; the algae-media mixture discharge port 15 is connected with an algae-media mixture storage tank 18 through a screw feeder; the algae-media mixture in the mixture storage tank 18 enters a movable filter cover 23 through a dewatering screw feeder 19, and a dewatering feeding motor 20 is arranged on the screw feeder; a press disc 22 is arranged in a movable filter cover 23, a movable press rod 21 is arranged on the press disc 22, a water filtering hole 24 is arranged on the movable filter cover 23, and a dehydrated algae cake 27 is placed on a rotatable tray 25.
FIG. 6 is a top view of the rotating tray; 3 rotatable trays 25 are provided by means of spindles 28.
FIG. 7 is a schematic structural diagram of an integrated fast moving work platform; a movable enclosure algae collection is arranged outside a movable integrated movable working platform 33, and a spread arm type algae-mediated floc collection system 29, an algae-laden water and medium mechanical blending system 30 and a dehydration forming system 31 are arranged on the platform 33. The collection arm 10 of the spread-arm algal-medium floc collection system 29 extends into the water area to be treated, and the algae mass is captured by adsorption.
The integrated fast moving operation platform adopts a floating platform, can fast move and operate when a large amount of cyanobacterial blooms appear in lakes according to the combined installation requirements of salvaging, uniformly mixing and dehydrating equipment, has the single-ship operation capacity of 10000m2/h, and reduces the salvaging rate by 30 percent compared with the traditional salvaging method. The conventional salvage and emergency environment management is solved, and the rapid, accurate and mobile operation mode is realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A novel blue algae fishing and dehydrating process mediated by lightweight organic matters is characterized by comprising the following steps:
s1, crushing the biological organic material into 1-50mm fine powder serving as an algae catching medium;
s2, throwing the algae catching medium into the surface of the cyanobacterial bloom, wherein the algae catching medium is fully contacted with the cyanobacterial under the action of wind waves to adhere and accumulate the cyanobacterial;
and S3, sucking the algae medium flocculate, fully and uniformly mixing the algae medium flocculate with the organic medium powder again, and conveying the mixture to a dehydration forming system for deep compression dehydration.
2. The lightweight organic matter mediated novel cyanobacteria salvaging and dewatering process as claimed in claim 1, wherein the bio-organic material is any one or more of green maintenance pruned branches, trunks, leaves, lawn pruned grass residue, corncobs, rice hulls, straws, corn stalks and bamboo.
3. The novel blue algae salvaging and dehydrating process mediated by lightweight organic matters as claimed in claim 2, wherein the branches and trunks which are green, cured and trimmed are crushed and then aerobically fermented for 10-30 days under 2-6 kg/cube of EM, ferment bacteria composite strains and urea, and the light organic mediums are obtained after decomposition.
4. The novel blue algae fishing and dewatering process mediated by lightweight organic matters as claimed in claim 1, wherein a spread arm type algae-mediated floc collecting system is adopted for pumping algae-mediated flocs, the spread arm type algae-mediated floc collecting system mainly comprises a collecting arm, an algae sucking pump is connected with a plurality of collecting arms, and the collecting arm is provided with a plurality of water inlet holes.
5. The novel fishing and dewatering process for blue-green algae mediated by lightweight organic matters as claimed in claim 1, wherein in S3, a mechanical mixing system of algae water and medium is adopted for mixing;
the algae water and medium mechanical mixing system mainly comprises an organic medium feeding inlet, a screw feeding machine, stirring equipment, an algae medium mixture discharging port, a feeding motor and a stirring motor; the feeding motor drives the screw feeding machine to convey media into the stirring equipment, and the screw feeding machine is provided with an organic medium feeding inlet; the algae sucking pump sucks algae liquid into the stirring equipment, and the stirring equipment is provided with a stirring motor and an algae medium mixture discharge port.
6. The novel fishing and dewatering process for blue-green algae mediated by lightweight organic matters as claimed in claim 1, wherein the dewatering and forming system comprises a movable filter housing, a press disc is arranged in the movable filter housing, a movable press rod is arranged on the press disc, water filtering holes are arranged on the movable filter housing, and the dewatered algae cakes are placed on a rotatable tray.
7. The light organic matter mediated novel blue algae fishing and dehydrating process as claimed in claim 1, wherein the novel blue algae fishing and dehydrating are carried out by a movable integrated movable operation platform, a movable enclosure algae collection system is arranged outside the movable integrated movable operation platform, and a spread arm type algae medium floc collection system, an algae water and medium mechanical blending system and a dehydration forming system are arranged on the platform.
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Cited By (1)
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| CN115324008A (en) * | 2022-08-16 | 2022-11-11 | 中国地质大学（北京） | A pontoon device for lake surface water floater is administered |
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