CN113336397A - Bionic environment-friendly harmless biological treatment system - Google Patents

Bionic environment-friendly harmless biological treatment system Download PDF

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Publication number
CN113336397A
CN113336397A CN202110689605.6A CN202110689605A CN113336397A CN 113336397 A CN113336397 A CN 113336397A CN 202110689605 A CN202110689605 A CN 202110689605A CN 113336397 A CN113336397 A CN 113336397A
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ecological
tank
treatment
reaction
friendly
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陈建
刘丽
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Shandong Fu Tu Environment Engineering Co ltd
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Shandong Fu Tu Environment Engineering Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C05F17/964—Constructional parts, e.g. floors, covers or doors
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F2101/30—Organic 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
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • C02F2303/02—Odour removal or prevention of malodour
    • 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
    • C02F2303/06—Sludge reduction, e.g. by lysis
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Fertilizers (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention provides a bionic environment-friendly harmless biological treatment system, and belongs to the technical field of sewage treatment. The treatment system provided by the invention has the advantages that the microbial reaction flora is placed in the pre-reaction device and the ecological reaction device, the sewage is decomposed through the microbial flora, no chemical is added in the whole treatment process, and the stable treatment effect is achieved by the action of natural efficient microorganisms. Compared with the traditional sewage treatment system, a plurality of treatment devices such as a dosing system, sludge treatment equipment, waste gas treatment equipment and the like are omitted, and compared with the traditional sewage treatment process, the required power equipment is less and the energy is saved; because the use of chemical treatment medicines is saved, no secondary pollution is caused in the treatment process, and the sludge reduction in the treatment process is 30-50 percent, the sludge treatment cost is reduced; the whole treatment period only needs to supplement a small amount of microorganisms, the operation cost is low, the total investment is low, and the investment is one third of that of the traditional sewage A/O process.

Description

Bionic environment-friendly harmless biological treatment system
The application is a divisional application of Chinese patent application with the application number of CN201710048842.8 and the invented name of 'bionic environment-friendly harmless biological treatment system' filed on 23/1/2017 by the Chinese patent office.
Technical Field
The invention provides a bionic environment-friendly harmless biological treatment system, and belongs to the technical field of sewage treatment.
Background
With the rapid development of livestock and poultry breeding industry (including deep processing industry related to the livestock and poultry breeding industry), a large amount of excrement generated by livestock and poultry breeding farms is lack of effective harmless treatment, and the large amount of excrement is randomly discharged and accumulated and is directly used for agricultural fertilization without treatment, so that the content of nitrite and phosphorus nitrate in the soil environment is too high, and the value of the soil is reduced; if the nitrate is directly discharged into water, the nitrate content in the water body is increased, and if the nitrate penetrates into the underground through the earth surface, the nitrate seriously threatens the health of human beings; harmful gas is diffused into the air, so that the air quality is reduced, the environment is seriously polluted, and the life of people around the air is influenced. In 17 th 4 th 2014, "national soil pollution condition survey bulletin" jointly issued by ministry of environmental protection and ministry of national soil resources shows that the total point standard exceeding rate of national soil is as high as 16.1%, wherein: the standard exceeding rate of the point position of the cultivated land is as high as 19.4 percent. "soil pollution control is more complicated and severe than air pollution and water pollution, and once polluted, the soil pollution is long-lasting. "environmental protection department secondary long lipari was previously expressed. In the face of the increasingly worsened soil pollution situation, the environmental management of the polluted soil is urgent. The severity of soil contamination that is inconspicuous below ground compared to visible air and water contamination is of less magnitude.
At present, a plurality of livestock and poultry manure treatment methods are available, and the following treatment methods are available for livestock and poultry breeding excrement:
a solid-liquid separation. Most of organic matters in the excrement can be removed through solid-liquid separation, and the load and the cost of wastewater treatment are reduced. But the separated liquid and solid can be further processed to meet the relevant national standards or regulations. The main methods currently used are mechanical separation into primary-sieving and extrusion. And a flocculating agent is added into the wastewater to accelerate the precipitation of suspended matters in the wastewater and reduce the suspended matters in the wastewater, but the adding of the flocculating agent can increase the cost of wastewater treatment, and some flocculating agents can also influence the subsequent treatment of the wastewater and increase the treatment difficulty.
And secondly, high-efficiency anaerobic treatment. The high-efficiency anaerobic treatment is a main method for treating the excrement in the farm. The anaerobic digestion is mainly used for converting organic matters in animal excrement into methane to produce clean energy, and the organic matters and COD in the wastewater can be obviously reduced. At present, biogas digesters, AF (anaerobic filters) and UASB (upflow anaerobic sludge blanket) are applied more frequently.
And (3) performing aerobic biological treatment. Aerobic biological treatment is generally used as a subsequent treatment to anaerobic digestion treatment. Through aerobic treatment, nitrogen, phosphorus, organic matters and other substances in the water can be removed. Aerobic treatment methods are various, such as a biological filter, a biological rotating disk, a biological fluidized bed, SBR (sequencing batch reactor) and the like.
However, the existing livestock and poultry manure treatment system has the defects of improper or untimely treatment of livestock and poultry manure, low utilization rate and incapability of realizing full utilization of resources, so that the system becomes a new pollution source; the method has a series of problems of incapability of realizing recycling and harmless treatment, poor economic feasibility and the like.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art, and provides an ecological environment-friendly harmless biological treatment system which is timely in treatment, realizes cyclic utilization and harmless treatment of sewage, and is economical and feasible.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a bionic environment-friendly harmless biological treatment system comprises a water collecting tank 1, a primary sedimentation tank 2, a pre-reaction tank 3 and an ecological reaction device, wherein the ecological reaction device comprises an ecological reaction tank 5 and an ecological filter tank 6;
the primary sedimentation tank 2 is communicated with the water collecting tank 1 through a liquid pump;
the pre-reaction tank 3 is communicated with a sewage outlet of the primary sedimentation tank 2; a microbial complex flora containing a plurality of radioactive floras is placed in the pre-reaction tank 3; a solid-liquid separation device is arranged in the pre-reaction tank 3;
an inlet of the ecological reaction tank 5 is communicated with a sewage outlet of the pre-reaction tank 3, and biological fillers are arranged in the ecological reaction tank 5 and the ecological filter tank 6;
a partition is arranged between the ecological reaction tank 5 and the ecological filter tank 6, an automatic flow hole allowing water to flow out is formed in the partition, and the installation height of the bottom of the ecological reaction tank 5 is higher than that of the ecological filter tank 6.
Preferably, the microbial complex flora comprises anaerobic bacteria, aerobic bacteria and neutral bacteria; the volume ratio of the radioactive flora is 1: 100-1: 1000.
Preferably, the biological filler comprises one or more of activated carbon, straw and pine bark.
Preferably, the biological filler in the ecological reaction tank 5 is 2-3/square meter, and the biological filler in the ecological filter 6 is 4-5/square meter.
Preferably, the concentration of the dissolved oxygen in the ecological reaction tank 5 is 0.4-0.5 mg/L, and the concentration of the dissolved oxygen in the ecological filter 6 is 0.2-0.3 mg/L.
Preferably, the ecological filter 6 is an ecological MBR tank.
Preferably, the sediment outlet of the primary sedimentation tank 2 is communicated with a composting device.
Preferably, the solid-liquid separation device is a slag scraper which is arranged at a discharge port of the pre-reaction tank 3; the slag scraper is provided with a solid discharge port and a liquid discharge port; the solid discharge hole is communicated with the slag pool 4; the liquid discharge port is communicated with an inlet of the ecological reaction tank 5.
Preferably, the effluent of the ecological reaction device is recycled.
Preferably, the outlet of the ecological reaction device is communicated with a final sedimentation tank 8; and the discharge end of the final sedimentation tank 8 is provided with two discharge pipelines, one pipeline is directly used for agricultural irrigation, and the other pipeline is connected with a clean water tank 7 for water storage.
The invention collects the sewage firstly, then carries out integrated treatment, places microbial reaction flora in the pre-reaction device and the ecological reaction device, decomposes the sewage through the microbial flora, does not add any chemical in the whole treatment process, and achieves stable treatment effect by the action of natural efficient microorganisms. Compared with the traditional sewage treatment process, a plurality of treatment devices such as a dosing system, sludge treatment equipment, waste gas treatment equipment and the like are omitted, and compared with the traditional sewage treatment process, the process needs fewer power devices and is more energy-saving; because the use of chemical treatment medicines is saved, no secondary pollution is caused in the treatment process, and the sludge reduction is 30-50% in the treatment process, the sludge reduction correspondingly reduces the sludge treatment cost; the whole treatment period only needs to supplement a small amount of microorganisms, the operation cost is low, the total investment is low, and the investment is one third of that of the traditional sewage A/O process. The requirement of the concentration of dissolved oxygen is lower, which is about 10 percent of the traditional sewage treatment. The treated water and solids can be recycled, so that energy is saved; the automation degree of the equipment is higher, the operation of a special person is not needed, and the time and the labor are saved.
The radioactive bacteria in the flora exist in the form of spores, hypha is extended to grow when the excrement and sludge are decomposed, and the excrement and the sludge are decomposed into solid and liquid when the decomposition is carried out. Wherein the solid can be used as compost raw material, the liquid can be used as microbial deodorant and liquid fertilizer, and can be applied to deodorization, compost catalysis and crop irrigation. The biological technology is utilized to solve the problems of organic matter decomposition and conversion, sludge reduction and flocculation, biological deodorization and the like in the treatment process, the biological deodorization technology is fully utilized, no obvious odor exists in the treatment process, and the odor treatment cost is reduced by biological deodorization.
In the invention, the microbial complex flora comprises anaerobic bacteria, aerobic bacteria and passable anaerobic bacteria. The radioactive flora in the flora is streptomyces, various bacteria can be freely proportioned aiming at different environments, and the total number of bacteria in 1g of bacteria liquid can reach 10-100 hundred million. Mainly utilizes radioactive bacteria to decompose organic matters in the sewage.
The volume ratio of the radioactive flora is 1: 100-1: 1000.
Ecological reaction unit include ecological reaction pond and ecological filter pond, the dissolved oxygen concentration in the ecological reaction pond and the density of biofilm carrier all are higher than the dissolved oxygen concentration in the ecological filter pond and the density of biofilm carrier, the mounting height in ecological reaction pond bottom of the pool is higher than the mounting height in ecological filter pond, sewage circulates through the mode of flowing automatically.
The biological filler comprises active carbon, straws and pine barks, the filler in the ecological reaction tank is 2-3/square meter, and the filler in the ecological filter tank is 4-5/square meter.
The concentration of the dissolved oxygen in the ecological reaction tank is 0.4-0.5 mg/L, and the concentration of the dissolved oxygen in the ecological filter tank is 0.2-0.3 mg/L.
The solid-liquid separation device in the step 3) is a slag scraper, and organic dross and inorganic sediment separated by the slag scraper are used for manufacturing organic fertilizers.
The sedimentation tank in the step 1) is a primary sedimentation tank, and sediments in the primary sedimentation tank are discharged to a composting device through a pipeline and fermented under aerobic conditions to form solid fertilizers.
And 4) arranging a final sedimentation tank at the discharge port of the ecological reaction device in the step 4), precipitating again before discharging through the final sedimentation tank, discharging the precipitate precipitated in the final sedimentation tank into a composting device through a pipeline, and fermenting under aerobic conditions to form solid fertilizer.
The discharge end of the final sedimentation tank is provided with two discharge pipelines, one pipeline is directly used for agricultural irrigation, and the other pipeline is connected with a clean water tank for water storage.
Compared with the prior art, the invention has the beneficial effects that: on the basis of the traditional sewage treatment technology, the invention combines high-efficiency microorganisms to treat various organic wastewater with high pollutant concentration in livestock and poultry breeding industry and the like, no chemical preparation is added in the whole treatment process, and the water body has no obvious peculiar smell, thereby completely achieving the treatment effect of green ecology and no secondary pollution. Compared with the traditional sewage treatment technology, the process has the advantages that the produced solid wastes are less, the treatment cost is greatly reduced, the cyclic utilization is realized, the waste is changed into valuable, and the economic benefit is generated.
The microbial reaction flora is placed in the pre-reaction device and the ecological reaction device, the sewage is decomposed through the microbial flora, no chemical is added in the whole treatment process, and the stable treatment effect is achieved by the action of natural efficient microorganisms. Compared with the traditional sewage treatment process, a plurality of treatment devices such as a dosing system, sludge treatment equipment, waste gas treatment equipment and the like are omitted, and compared with the traditional sewage treatment process, the process needs fewer power devices and is more energy-saving; because the use of chemical treatment medicines is saved, no secondary pollution is caused in the treatment process, and the sludge is reduced by 30-50% in the treatment process, the sludge reduction correspondingly reduces the sludge treatment cost; the whole treatment period only needs to supplement a small amount of microorganisms, the operation cost is low, the total investment is low, and the investment is one third of that of the traditional sewage A/O process. The requirement of the concentration of dissolved oxygen is lower, which is about 10 percent of the traditional sewage treatment. The treated water and solids can be recycled, so that energy is saved; the automation degree of the equipment is higher, the operation of a special person is not needed, and the time and the labor are saved.
The radioactive bacteria exist in spore form, and hypha growth is extended when the excrement and sludge are decomposed, wherein the excrement and sludge are decomposed into solid and liquid. Wherein the solid can be used as compost raw material, the liquid can be used as microbial deodorant and liquid fertilizer, and can be applied to deodorization, compost catalysis and crop irrigation. The biological technology is utilized to solve the problems of organic matter decomposition and conversion, sludge reduction and flocculation, biological deodorization and the like in the treatment process, the biological deodorization technology is fully utilized, no obvious odor exists in the treatment process, and the odor treatment cost is reduced by biological deodorization.
Drawings
FIG. 1 is a flow chart of a bionic environment-friendly harmless biological treatment process.
FIG. 2 is a schematic view showing the installation position relationship between reaction tanks in the bionic environment-friendly harmless biological treatment system;
wherein, 1, collecting tank; 2. a primary sedimentation tank; 3. a pre-reaction tank; 4. a slag pool; 5. an ecological reaction tank; 6. an ecological filter tank; 7. a clean water tank; 8. and (5) a final sedimentation tank.
Detailed Description
FIGS. 1-2 illustrate preferred embodiments of the present invention, and the present invention will be further described with reference to FIGS. 1-2.
Referring to the attached figures 1-2: the bionic environment-friendly harmless biological treatment process comprises the following steps:
1) collecting water, namely collecting the sewage at one position in a centralized manner through a water collecting device, wherein the water collecting device is a water collecting tank 1 and is pumped into a sedimentation tank through a liquid pump; the sedimentation tank is a primary sedimentation tank 2, and sediments in the primary sedimentation tank 2 are discharged to a composting device through a pipeline and fermented under aerobic conditions to form solid fertilizers.
2) The process comprises the steps of preliminary sedimentation, controlling the pumping speed of sewage, carrying out preliminary sedimentation by utilizing the sewage in the self-flowing process of a sedimentation tank, discharging scum after sedimentation, and discharging the sewage after deslagging into a pre-reaction device.
3) A pre-reaction step, in which a pre-reaction device is provided with a microbial composite flora containing a plurality of radiation floras, the pre-reaction device is a pre-reaction tank 3 shown in figure 2, the sewage is decomposed by the microbial composite flora to decompose organic matters in the water to generate organic scum and inorganic precipitates, and the organic scum and the inorganic precipitates are separated by a solid-liquid separation device; the microorganism complex flora comprises anaerobic bacteria, aerobic bacteria and accessible anaerobic flora, wherein the actinomycetes is streptomyces. The volume ratio of the radioactive bacteria colony is 1: 100-1: 1000, the total number of bacteria of 1g of bacteria liquid can reach 10-100 hundred million, and the radioactive bacteria are mainly used for decomposing organic matters in sewage. The radioactive bacteria exist in spore form, and hypha growth is extended when the excrement and sludge are decomposed, wherein the excrement and sludge are decomposed into solid and liquid. Wherein the solid can be used as compost raw material, the liquid can be used as microbial deodorant and liquid fertilizer, and can be applied to deodorization, compost catalysis and crop irrigation.
Wherein, the solid-liquid separation device is a slag scraper, and organic dross and inorganic sediment separated by the slag scraper are used for preparing organic fertilizer. Scrape the sediment machine setting in the discharge gate department of pre-reaction tank 3, scrape the solid discharge gate intercommunication slag charge collection device of sediment machine, slag charge collection device is slag bath 4, and the liquid discharge gate of scraping the sediment machine passes through drain pipe connection ecological reaction unit. Specifically, a liquid discharge port of the slag scraper is connected with an inlet of the ecological reaction tank 5 through a water discharge pipe.
4) Carrying out an ecological reaction, wherein the sewage after the pre-reaction enters an ecological reaction device for secondary reaction, a biological filler is used in the ecological reaction device, and organic pollutants are further decomposed by continuously switching between an anaerobic condition and an aerobic condition in the reaction process; and a final sedimentation tank is arranged at the discharge port of the ecological reaction device, secondary sedimentation is carried out before discharge through the final sedimentation tank, sediment precipitated in the final sedimentation tank is discharged into a composting device through a pipeline, and fermentation is carried out under aerobic conditions to form solid fertilizers.
The ecological reaction device comprises an ecological reaction tank 5 and an ecological filter tank 6, the dissolved oxygen concentration and the density of biological filler in the ecological reaction tank 5 are higher than those in the ecological filter tank 6, a partition can be arranged between the ecological reaction tank 5 and the ecological filter tank 6, a flowing hole allowing water to flow out is formed in the partition, the installation height of the bottom of the ecological reaction tank 5 is higher than that of the ecological filter tank 6, and sewage flows through the flowing mode. The ecological reaction tank 5 and the ecological filter tank 6 are internally provided with fillers, and the number of the fillers in the ecological reaction tank 5 is more than that of the fillers in the ecological filter tank 6. The concentration of the dissolved oxygen in the ecological reaction tank 5 is higher than that in the ecological filter 6. Preferably, the biological filler comprises activated carbon, straws and pine barks, the filler in the ecological reaction tank is 2-3/square meter, and the filler in the ecological filter tank 6 is 4-5/square meter. The concentration of the dissolved oxygen in the ecological reaction tank 5 is 0.4-0.5 mg/l, and the concentration of the dissolved oxygen in the ecological filter 6 is 0.2-0.3 mg/l.
The residual water after the treatment of the slag scraper enters an ecological reaction tank 5 and an ecological filter tank 6 (an ecological M BR tank (B type)) in sequence, and organic pollutants are further decomposed after the treatment under the condition of continuously switching anaerobic and aerobic conditions.
5) And discharging, directly discharging the water after the reaction in the ecological reaction device, or recycling the water again. The treatment period is 10-20 days from the initial precipitation to the discharge according to different treatment objects.
The water after decomposition can be directly discharged as standard water, and can also be discharged into a final sedimentation tank 8 for further sedimentation, the discharge end of the final sedimentation tank 8 is provided with two discharge pipelines, one pipeline is directly used for agricultural irrigation, the other pipeline is connected with a clean water tank 7 for water storage, the treated water can be directly discharged, and the water can also be used for crop planting, pond culture, colony house flushing and the like, so that the purpose of recycling is achieved, and the water can also be discharged into the clean water tank 7 for temporary storage.
In addition, agricultural wastes such as livestock and poultry manure, straws, organic sludge and the like can be used for producing biogas and purifying the biogas into natural gas. The biogas residues and the biogas slurry are treated by the bionic harmless biological technology of the invention and are converted into biological organic fertilizer for the treatment of saline-alkali soil, fertilizer-damaged soil and hardened farmland. Thereby activating and improving soil, restoring acidification, quickly restoring soil microbial ecological balance, promoting crop growth, enhancing disease resistance and effectively improving farming income.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (10)

1. A bionic environment-friendly harmless biological treatment system is characterized by comprising a water collecting tank (1), a primary sedimentation tank (2), a pre-reaction tank (3) and an ecological reaction device, wherein the ecological reaction device comprises an ecological reaction tank (5) and an ecological filter tank (6);
the sewage in the water collecting tank (1) is pumped into a primary sedimentation tank (2) through a liquid pump, and the primary sedimentation tank (2) is communicated with a sediment discharge pipeline; the pre-reaction tank (3) is communicated with a sewage discharge port of the primary sedimentation tank (2); the pre-reaction tank (3) is internally provided with a microbial compound flora containing a plurality of radioactive floras; a solid-liquid separation device is arranged in the pre-reaction tank (3), and a discharge hole is formed in the pre-reaction tank (3);
a liquid discharge port of the solid-liquid separation device is connected with an ecological reaction device through a drain pipe, the ecological reaction device comprises an ecological reaction tank (5) and an ecological filter tank (6), biological fillers are arranged in the ecological reaction tank (5) and the ecological filter tank (6), and the amount of the fillers in the ecological reaction tank (5) is more than that of the fillers in the ecological filter tank (6);
a partition is arranged between the ecological reaction tank (5) and the ecological filter tank (6), a self-flowing hole allowing water to flow out is formed in the partition, and the installation height of the bottom of the ecological reaction tank (5) is higher than that of the ecological filter tank (6).
2. The biomimetic, environment-friendly and harmless bioremediation system according to claim 1, wherein the complex microbial flora includes anaerobic bacteria, aerobic bacteria and neutral bacteria; the volume ratio of the radioactive flora is 1: 100-1: 1000.
3. The biomimetic, environment-friendly and harmless bioremediation system of claim 1, wherein the biological filler comprises one or more of activated carbon, straw and pine bark.
4. The bionic environment-friendly harmless biological treatment system according to claim 1, wherein the biological filler in the ecological reaction tank (5) is 2-3/square meter, and the biological filler in the ecological filter tank (6) is 4-5/square meter.
5. The bionic environment-friendly harmless biological treatment system according to claim 1 or 4, wherein the concentration of dissolved oxygen in the ecological reaction tank (5) is 0.4-0.5 mg/L, and the concentration of dissolved oxygen in the ecological filter tank (6) is 0.2-0.3 mg/L.
6. The biomimetic, environment-friendly and harmless bioremediation system according to claim 1, wherein the ecological filter tank (6) is an ecological MBR tank.
7. The biomimetic, environment-friendly and harmless bioremediation system according to claim 1, wherein a sediment outlet of the primary sedimentation tank (2) is communicated with a composting device.
8. The bionic environment-friendly harmless biological treatment system according to claim 1, wherein the solid-liquid separation device is a slag scraper, the slag scraper is arranged at a discharge port of the pre-reaction tank (3), and the slag scraper is provided with a solid discharge port and a liquid discharge port; the solid discharge hole is communicated with the slag pool (4); the liquid discharge port is communicated with an inlet of the ecological reaction tank (5).
9. The biomimetic, environment-friendly and harmless bioremediation system according to claim 1, wherein the effluent of the ecological reaction device is recycled.
10. The biomimetic, environment-friendly and harmless bioremediation system according to claim 9, wherein an outlet of the ecological reaction device is communicated with a final sedimentation tank (8); and the discharge end of the final sedimentation tank (8) is provided with two discharge pipelines, one pipeline is directly used for agricultural irrigation, and the other pipeline is connected with a clean water tank (7) for water storage.
CN202110689605.6A 2017-01-23 2017-01-23 Bionic environment-friendly harmless biological treatment system Pending CN113336397A (en)

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