CN106927635A - Energy output type sewage treatment process - Google Patents

Energy output type sewage treatment process Download PDF

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Publication number
CN106927635A
CN106927635A CN201710230453.7A CN201710230453A CN106927635A CN 106927635 A CN106927635 A CN 106927635A CN 201710230453 A CN201710230453 A CN 201710230453A CN 106927635 A CN106927635 A CN 106927635A
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sewage
floating bed
treatment
complex ecological
ecological floating
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CN201710230453.7A
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CN106927635B (en
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李爱民
张雷
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Dalian University of Technology
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Dalian University of Technology
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment
    • C02F11/04Anaerobic treatment; Production of methane by such processes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/08Production of synthetic natural gas
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/40Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2866Particular arrangements for anaerobic reactors
    • C02F3/2893Particular arrangements for anaerobic reactors with biogas recycling
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/327Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/26Composting, fermenting or anaerobic digestion fuel components or materials from which fuels are prepared
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/32Molding or moulds
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention provides a kind of energy output type sewage treatment process, belong to technical field of sewage.Energy output type sewage treatment process includes complex ecological floating bed, follow-up sewage-treatment plant, sedimentation basin, dry-type anaerobic fermentation device, the hot coupling desiccation apparatus of aerobe, curing range, shaped device and combustion gasification apparatus.Substantial amounts of nitrogen and phosphorus element and organic matter are adsorbed by complex ecological floating bed first, entering back into follow-up sewage treatment process carries out after-treatment, the clear water water quality discharged after sedimentation basin is good, meets national integrated wastewater one-level emission standard A.The present invention has good sewage processing effect, realizes the characteristics of carbon dioxide zero discharge and pollutant are converted into the energy.

Description

Energy output type sewage treatment process
Technical field
The invention belongs to technical field of sewage, specially a kind of energy output type sewage treatment process.
Background technology
With the fast development of economic society, the consumption of water resource is significantly increased, while producing substantial amounts of industry and life Sewage, the key that rational treatment has become relationship environment quality and health of people is carried out to it.The main source of harm of sewage The pollutions such as nutrient or heavy metal such as organic pollution (conventional COD is weighed), nitrogen phosphorus in wherein high content Thing.The main purpose of sewage treatment process is effectively to remove above-mentioned pollutant.Activated sludge process is a kind of sewage the most typical Handling process, was invented, the main life using aerobic microbiological by the Clarke (Clark) and Gage (Gage) of Britain in 1912 Thing catalytic action, oxidation operation is decomposed.Traditional activated sludge process is by aeration tank, second pond and sludge reflux pipeline group Into its principle is the pulling flow type that liquid stream has backflow.Waste water after primary deposition mixes laggard with the activated sludge that second pond flows back Enter aeration tank, be about aerated 6 hours, water inlet is acted on by diffused aeration or mechanical aeration with returned sludge and mixed.Typically Ground, after sedimentation in secondary sedimentation tank, the activated sludge in sedimentation basin is returned the mixed liquor from aeration tank outflow with the 25~50% of inflow Go back to aeration tank (i.e. return sludge ratio is 25~50%).This method is usually used in low concentration sewage treatment, impact load It is very sensitive.The clearance of biochemical oxygen demand (BOD) (BOD5) is up to 85~95%.In order to meet the dirty Organic substance in water and battalion that increasingly improve The emission request of element is supported, on the basis of conventional activated sludge process, A/O (aerobic/anaerobic), A2/O techniques is developed and (is lacked Oxygen/aerobic/anaerobic), the technique such as SBR (sequencing batch active sludge), such method on the basis of traditional aerobic process, one Determine to increase anoxic and anaerobic stages in degree, the removal of the nutrients such as nitrogen phosphorus can be improved, improve the water quality of sewage disposal.
Municipal sewage treatment belongs to high energy consumption industry, and in the direct cost of Sewage Plant, proportion maximum is expenditure on power. Although the technique that different sewage treatment plants uses is not quite similar, typical process flow includes:Sewage lifting pump station → grid → setting pot → primary sedimentation pond → aeration tank → secondary sedimentation tank → receiving water body or advanced treating.All in all, at sewage The energy consumption for managing factory is mainly distributed on following link:A) sewage lifting system;B) pretreatment system for sewage;C) sewage disposal system System;D) sludge recirculation system:E) sludge treating system:F) sewage treatment plant's illumination and affiliated facility energy consumption.Current typical case's sewage Processing system is designed with aerobic unit-aeration tank, and it is the core of sewage disposal.Aeration tank is that the energy consumption of aerobic treatment process is big Family, conventional aeration tank offering oxygen way has two kinds of blast aeration and mechanical aeration, it is necessary to air blower or surface aerating machine in sewage Air is blasted, air is sufficiently mixed with sewage, improve dissolution of contaminated water oxygen, meet the growth conditions of aerobic bacteria, improve its net Change the ability of sewage.This process needs to use air blower, mechanical agitator etc., because the power of air blower or mixer is big, and will Run round the clock, its energy consumption accounts for the 50%~70% of sewage treatment plant's total energy consumption.In addition, the concentration in Treatment of Sludge stage, digestion, Dehydration and transmission etc., also than larger, its energy consumption accounts for the 10%~25% of sewage treatment plant's total energy consumption for power consumption.As can be seen here, pass The drawbacks of sewage disposal generally existing energy consumption and operating cost high of system, in addition, the nutrient removal effect such as nitrogen phosphorus is difficult to completely The increasingly strict emission request of foot.
On the other hand, the subject matter of current sewage treatment plant is mud discharging problem.Because bioremediation is main It is microorganism by oxidation operation into carbon dioxide and water, the organic matter of 30-50% is synthesized organism in addition, with the shape of sludge Formula is present, and moisture content is 80% or so after dehydration, and its yield is big.At present, the dewatered sludge that sewage treatment plant produces is direct Outward transport, not yet carries out on-site and effectively processes.The link such as continuous transhipment, treatment disposal has high cost and technology bottle behind The problems such as neck.
Ecology sewage disposal in recent years gets the attention, and the application of the method such as artificial swamp is more universal, such Method can effectively reduce the cost of aeration, but the subject matter that such method is present is low treatment effeciency, plant after wetland variation Secondary pollution problem.As can be seen here, it is badly in need of developing a kind of big sewage of new and effective, energy ezpenditure low (or even energy supply) Handling process, while the secondary pollution of the accessory substance (such as sludge, biomass) that can be prevented effectively from sewage disposal process, or even it is right It carries out resource and recovery energy.It is a kind of raw that this patent refer to the Chinese patent application of Patent No. 201610629633.8 The processing method of rubbish hot blast coupled biological desiccation living.
A kind of processing method of house refuse hot blast coupled biological desiccation, step is as follows:
(1) the stage domestication that heats up
It is materials of the 5-10cm as domestication using Domestic garbage crushing to particle diameter, using the indigenous microorganisms in house refuse Or the microorganism in aerobic dewatered sludge is tamed;House refuse initial aqueous rate is adjusted to 60-65%, is passed through low speed heat Wind, it is ensured that material aerobic environment;Acclimation temperature is set by hot blast coupling, initial acclimation temperature is set to 35 DEG C, stops 36- After 48h, acclimation temperature is reset to 40 DEG C, and after stopping 18-24h, further setting, to 45 DEG C, stops 10-12h to acclimation temperature Afterwards, most acclimation temperature is set as 50 DEG C at last, tames 10-12h, and the material microbial activity after domestication is higher, oxygen consumption speed Rate is more than 30mg/ (g VSh), can be used for biological dewatered inoculation, realizes the domestication enrichment of thermophilic high-temperature strain;Stage intensification During domestication, the daily turning of material 2 times, it is to avoid material local anaerobic is acidified promotes microorganism to be uniformly distributed;Material stop 3- 4 days, domestication terminated, by, for being inoculated with, desiccation reactor is emptied and added in time in the material input desiccation reactor after domestication Fresh material, repeats above-mentioned domestication process, it is ensured that the continuous operation of whole domestication seeded process;
(2) hot blast coupling inoculation desiccation
By Domestic garbage crushing to particle diameter be 5-10cm after, with domestication after material according to mass ratio 3:1 mixing, mixture Material filling is completed, and carries out intermittent aeration, and the booster action coupled by hot blast makes mixed material temperature maintain more than 50 DEG C, together When microbial fermentation heat production and regulation frequency conversion fan ventilation and heat in the presence of, control mixed material temperature in 50-60 DEG C Continuous operation, daily turning 2 times promotes the quick desiccation of house refuse in mixed material;House refuse moisture content is processed in 4 days During less than 25%, the house refuse in desiccation reactor after desiccation is emptied in time, domestication material continue to be mixed into after adding it is broken after Primary house refuse, implementation process is continuously run.
The content of the invention
The invention provides a kind of energy output type Sewage Plant, the present invention has high treating effect, realizes carbon dioxide zero The characteristics of discharge and organic biomass are converted into energy source secondary and utilize.
Technical scheme:
A kind of energy output type sewage treatment process, including complex ecological floating bed, follow-up sewage-treatment plant, sedimentation basin, The hot coupling desiccation apparatus of dry-type anaerobic fermentation device, aerobe, curing range, shaped device and combustion gasification apparatus;
Sewage is passed through in complex ecological floating bed, is organic in complex ecological floating bed in solar energy and the common of carbon dioxide Plant provides required nutriment, and sewage is by coagulation;Dry type is sent into after the organic plant gathered in complex ecological floating bed is crushed In anaerobic ferment devices;The outlet of sewer of complex ecological floating bed is connected with the sewage inlet of follow-up sewage-treatment plant, is combined life After sewage in state floating bed enters the treatment of follow-up sewage-treatment plant, entering back into sedimentation basin carries out mud-water separation, and clear water is directly outer Row, sludge sends into dry-type anaerobic fermentation device after mechanical dehydration, anaerobic fermentation is carried out with organic plant;Dry-type anaerobic fermentation is filled Put and supplied or personal outside the separated rear methane of biogas that organic plant is produced with sludge anaerobic fermentation, carbon dioxide feeding is multiple During conjunction is biological floating bed, for the growth of complex ecological floating bed implants provides carbon dioxide;The natural pond produced in dry-type anaerobic fermentation device Slag carries out drying and other treatment in exporting the feeding hot coupling desiccation apparatus of aerobe by biogas residue;The hot coupling desiccation apparatus of aerobe it is cold Solidifying water out is connected with complex ecological floating bed, and the condensed water feeding complex ecological floating bed that drying process is produced, is that plant growth is carried Support and divide;The biomass drier outlet of the hot coupling desiccation apparatus of aerobe is connected with the biomass siccative entrance of curing range, does Biomass siccative after change treatment is into carrying out baking treatment, the makeup of curing range, shaped device and combustion gas in curing range Put and be sequentially connected, the exhanst gas outlet of combustion gasification apparatus is connected with complex ecological floating bed, the carbon dioxide in flue gas passes through gas Outlet enters in complex ecological floating bed, for the plant growth in complex ecological floating bed provides carbon source;It is flammable that baking process is produced Volatile matter in curing range through high-temp combustion for baking process provides energy, the charcoal for bakeing production is filled by thermal state forming Put and be made charcoal fuel rod (such as charcoal content of beary metal is relatively low, reaches agricultural standards, can also be directly used as soil improvement Agent), charcoal fuel rod both can directly clean burning production electric power and heat supply, it is also possible to for sale.
Beneficial effects of the present invention:
(1) in the present invention, substantial amounts of nitrogen and phosphorus element and organic matter are adsorbed by complex ecological floating bed first, Entering back into follow-up sewage treatment process carries out after-treatment, and the clear water water quality discharged after sedimentation basin is good, meets national sewage comprehensive Unification level emission standard A.
(2) in the present invention, the sludge in the organic plant unification harvesting and sedimentation basin in complex ecological floating bed is sent together Enter in dry-type anaerobic fermentation device and fermented, the biogas residue of generation further forms biomass siccative by the desiccation of biological heat coupling, Fuel rod is made by baking and forming, can beyond for can also combustion gasification produce and combustible gas and carry out power generation and heat supply, so Not only solve the problems, such as sludge subsequent treatment but also realize economic benefit.
(3) present invention in, in dry-type anaerobic fermentation device and combustion gasification apparatus produce carbon dioxide all reclaim into Enter complex ecological floating bed, for plant provide carry out photosynthesis needed for carbon dioxide, truly realize carbon dioxide Zero-emission.
(4) in the present invention, the methane produced in dry-type anaerobic fermentation device can be collected separately into tank, increase economic effect Benefit.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of energy output type sewage treatment plant of the invention.
Specific embodiment
Below in conjunction with accompanying drawing and technical scheme, specific embodiment of the invention is further illustrated.
Reference picture 1, energy output type sewage treatment plant of the invention, including complex ecological floating bed, follow-up sewage disposal work The hot coupling desiccation apparatus of skill, sedimentation basin, dry-type anaerobic fermentation device, aerobe, curing range, shaped device, combustion gas makeup Put, the organic plant of complex ecological floating bed output is manually fed into dry-type anaerobic fermentation device, the outlet of sewer of complex ecological floating bed It is connected with follow-up sewage treatment process sewage inlet, outlet of sewer and the sedimentation basin sewage inlet of follow-up sewage treatment process connect Connect, the sludge outlet of sedimentation basin is connected with dry-type anaerobic fermentation device sludge inlet, the biogas residue outlet of dry-type anaerobic fermentation device Biogas residue entrance with biological heat coupling desiccation apparatus is connected, carbon dioxide outlet and the complex ecological floating bed of dry-type anaerobic fermentation device Connection, biological heat coupling desiccation apparatus biomass drier outlet is connected with the biomass siccative entrance of curing range, and biological heat coupling is done The condensation-water drain put of makeup is connected with complex ecological floating bed, and curing range is connected with shaped device, shaped device and combustion gas Connection is put in makeup, and the exhanst gas outlet of combustion gasification apparatus is connected with complex ecological floating bed.
Dry-type anaerobic fermentation device is sent into after the organic plant harvesting of complex ecological floating bed output is broken, it is floating through complex ecological The sewage of bed treatment carries out subsequent treatment into follow-up sewage treatment process, and the sewage processed through follow-up sewage treatment process is sinking Mud-water separation is carried out in the pond of shallow lake, the sludge of precipitation and separation sends into dry-type anaerobic fermentation device with biological floating bed life after mechanical dehydration The organic plant of product carries out anaerobic fermentation together, is supplied outside the separated rear methane of biogas for producing that ferments or personal, and carbon dioxide is then For plant growth provides raw material in feeding is biological floating bed, the biogas residue feeding aerobe thermal coupling desiccation that dry-type anaerobic fermentation is produced Desiccation is carried out in device, the condensed water that drying process is produced sends into biological floating bed for plant growth provides nutrient, the life after desiccation Material siccative is baked into baking treatment, the flammable volatilization lease making high-temp combustion that baking process is produced is carried out in curing range Journey carries energizing quantity, bakees the charcoal of production and is made high-quality charcoal fuel (such as charcoal heavy metal by thermal state forming technique Content is relatively low, reaches agricultural standards, can also be directly used as soil conditioner), charcoal both can directly clean burning production electricity Power and heat supply, it is also possible to for sale.The exhanst gas outlet of combustion gasification apparatus is connected with complex ecological floating bed, the dioxy in flue gas Change carbon to enter in complex ecological floating bed by gas vent, for the plant growth in complex ecological floating bed provides carbon source.

Claims (1)

1. a kind of energy output type sewage treatment process, it is characterised in that wrapped in described energy output type sewage treatment process Include the hot coupling desiccation apparatus of complex ecological floating bed, follow-up sewage-treatment plant, sedimentation basin, dry-type anaerobic fermentation device, aerobe, Curing range, shaped device and combustion gasification apparatus;
Sewage is passed through in complex ecological floating bed, and solar energy and carbon dioxide are jointly for the organic plant in complex ecological floating bed is provided Required nutriment, sewage is by coagulation;Dry-type anaerobic fermentation is sent into after the organic plant gathered in complex ecological floating bed is crushed In device;The outlet of sewer of complex ecological floating bed is connected with the sewage inlet of follow-up sewage-treatment plant, in complex ecological floating bed Sewage enter the treatment of follow-up sewage-treatment plant after, entering back into sedimentation basin carries out mud-water separation, clear water directly outer row, sludge warp Dry-type anaerobic fermentation device is sent into after mechanical dehydration, anaerobic fermentation is carried out with organic plant;In dry-type anaerobic fermentation device Supplied outside the separated rear methane of biogas that organic plant is produced with sludge anaerobic fermentation or personal, carbon dioxide feeding complex ecological is floated In bed, for the plant growth in complex ecological floating bed provides carbon dioxide;The biogas residue produced in dry-type anaerobic fermentation device passes through Drying and other treatment is carried out in the biogas residue outlet feeding hot coupling desiccation apparatus of aerobe;The condensed water of the hot coupling desiccation apparatus of aerobe goes out Mouth is connected with complex ecological floating bed, the condensed water feeding complex ecological floating bed that drying process is produced, for plant growth provides nutrient; The biomass drier outlet of the hot coupling desiccation apparatus of aerobe is connected with the biomass siccative entrance of curing range, after drying and other treatment Biomass siccative passed through in curing range into baking treatment, the flammable volatile matter that baking process is produced is carried out in curing range High-temp combustion provides energy for baking process, and the charcoal of baking process production is made charcoal fuel rod by shaped device, For it is for sale or directly carry out gasification, and combustion production electric power and heat supply;The exhanst gas outlet and complex ecological of combustion gasification apparatus Floating bed is connected, and the carbon dioxide in flue gas is entered in complex ecological floating bed by gas vent, is the plant in complex ecological floating bed Thing growth provides carbon source.
CN201710230453.7A 2017-04-11 2017-04-11 Energy output type sewage treatment process Active CN106927635B (en)

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Publication number Priority date Publication date Assignee Title
CN108751418A (en) * 2018-06-29 2018-11-06 东华大学 A kind of carbon source self-adding production firedamp type efficient denitrification horizontal drowned flow artificial wet land
CN108751418B (en) * 2018-06-29 2021-06-04 东华大学 Carbon source self-supply methane-producing type efficient denitrification horizontal subsurface flow constructed wetland

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