CN107032427A - A kind of method and device for concentrating waste water or reclaiming nutrient - Google Patents
A kind of method and device for concentrating waste water or reclaiming nutrient Download PDFInfo
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- CN107032427A CN107032427A CN201710294894.3A CN201710294894A CN107032427A CN 107032427 A CN107032427 A CN 107032427A CN 201710294894 A CN201710294894 A CN 201710294894A CN 107032427 A CN107032427 A CN 107032427A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
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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
- 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
- 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
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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
- 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
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The present invention relates to waste water recycling device technical field, and in particular to a kind of concentration waste water or the method and device for reclaiming nutrient.This method includes adding pending waste water in clay container, then clay container is placed under illumination condition, waste water is outwards evaporated by clay container；It is concentrated by evaporation after the waste water in clay container to the solid-liquid specific concentration of restriction, the concentrate in clay container is subjected to pollutant component processing and/or nutrient is recycled.Further, use to be fitted into solid sediment in clay storage tank during nutrient is recycled and be dried.Physical method of the present invention is combined with chemical method, and first with the ventilative of pottery, heat absorption, heat-insulating property, concentration is carried out to waste water, is carried out drying processing to solid pollutant and is killed causal organism, so that solid nutrient is recycled or harmless treatment.The inventive method is easy to operate, with low cost, and application market is wide.
Description
Technical field
The present invention relates to waste water recycling device technical field, and in particular to a kind of concentration waste water or reclaim nutrient method and
Device.
Background technology
Waste water can be divided into sanitary sewage and the major class of industrial wastewater two.Sanitary sewage from city, hospital, factory living area and
Living quarters.Main pollutant component is life waste material and the excreta of people, typically without noxious material, but contains a large amount of bacteriums and disease
Substance.
Industrial wastewater has different property and composition due to the difference of production process, raw material and product.It can be divided into：
(1) inorganic wastewater, major pollutants are inorganic matter, from industries such as mining, metallurgical, coal and construction materials；(2) organic waste
Water, major pollutants composition is organic matter, from papermaking, brewage, food processing, petroleum refining and chemical industry；(3) mix useless
Water, while containing organic and inorganic pollution, from industries such as coking, chemical fertilizer, rubber and pharmacy；(4) radioactive wastewater, from core
Power station and production or the relevant industrial department using radioactive substance.
Inorganic pollution in waste water includes soda acid pollutant, nutrient pollutant, inorganic salts and heavy metal ion etc..
Nutrient pollutant refers to the nutriment of the plants such as nitrogen, phosphorus and microorganism.Nitrogen, phosphorus in sanitary sewage are mainly derived from the mankind
Excreta.Heavy metal ion is mainly derived from the departments such as metallurgical, plating, ceramics, glass and battery.Organic pollution can be divided into life
The organic matter of Biodegradable and the biological organic matter for being difficult to degrade.Some organic matters are harmless to microorganism, but some organic matters pair
Microorganism has inhibitory action.
At present, the processing method of waste water is broadly divided into physical method, chemical method and biological method three major types.
Physical method is to separate the main polluter in suspended state in waste water using physical action, in processing procedure
The chemical property of the polluter in waste water is not changed.Conventional physical method has：Sedimentation and air supporting, every cutting and filtering, are centrifuged
Separation and evaporation and concentration etc..Generally, needed for physical treatment process investment and operating cost is relatively low, therefore is often prioritized
Or use.But, it is simple by physical method purification for most industrial wastewater, tend not to reach discharge mark
Standard, also needs to be used in combination with other methods.
Chemical method is to separate or reclaim the polluter in waste water using chemical reaction effect, or it is converted into nothing
Harmful material, such as Coagulation Method, neutralisation, oxidation-reduction method, electrochemical process.
In waste water treatment process, physical method is often used in combination with chemical method, referred to as materializing strategy.Common materialization
Handling process has：Absorption method, ion-exchange, membrane separation process, extraction, blow-off method and vaporizing extract process etc..
Bioremediation includes aerobic method and the major class of anaerobic process two.The active sludge of aerobic method conventional process or oxidation
Ditch, biomembrane or biofilter, fluid bed or artificial swamp.Anaerobic process mainly has anaerobic pond and septic tank etc..
In wastewater treatment process, biological treatment is often intermediate link, and cardinal principle is to decompose useless using microorganism
Organic pollution in water.The process of biological treatment, substantial amounts of greenhouse gases are discharged into air.Aerobic Process for Treatment can discharge CO2,
Anaerobic Treatment can discharge CH4.At the same time, nitrogen contained in albumen type organic, in the ginseng of nitrobacteria and denitrifying bacteria
, can be to be discharged into the form of nitrogen oxides in air with.Nitrogen oxides is not only one of source of atmospheric pollution, prior
It is that it can be transported to farther place by big air-flow, and soil is then entered in the way of nitrogen deposition.Nitrogen is soil bacteria breeding increasing
Raw " catalyst ", it can accelerate decomposition of the bacterium to the soil organism, so as to discharge more greenhouse gases to air.Institute
So that nitrogen oxides is a lever, and it is deposited to after soil, then prizes greenhouse gas emission at double.
The process of the biological treatment of waste water, still decomposes phosphorus contained in organic matter and is discharged into water body.Phosphorus is to aquatic
The influence of the ecosystem, except " wawter bloom " problem known to us, can also destroy the food web frame of the aquatic livestocks such as fishes and shrimps, make
Fish production power declines.The wastewater discharge standard used in us is concentration standard at present, there is open defect.Such discharge standard
The size of pollution sources is not accounted for, the size and situation of sewage receiving water body are not considered yet.For different pollution sources and received
Water body all takes same standard, even if the waste water after processing has reached discharge standard, if discharge capacity substantially exceeds receiving water body
Environmental carrying capacity, irreversible serious consequence can be also caused to water body.
So, for the angle for slowing down greenhouse gas emission, protection water body and fishery resources, the biological treatment of waste water is simultaneously
It is not a good selection.We should seek a kind of more environmentally friendly technology to handle sanitary sewage and industrial wastewater, except
While nitrogen dephosphorization, non-toxic organic thing is recycled.
The content of the invention
It is an object of the invention to provide a kind of method for concentrating waste water or reclaiming nutrient, physical method is mutually tied with chemical method
Close, realize and the moisture content in waste water and being separately recovered in utilization, the discharge of reduction greenhouse gases, reduction recovery moisture content for nutrient are sought
The content of element is supported, cost is low, easy to operate.
Meanwhile, the present invention also resides in the device for providing a kind of implementation present invention concentration waste water or the method for reclaiming nutrient.
In order to realize the above object the present invention is adopted the following technical scheme that：
A kind of method for concentrating waste water or reclaiming nutrient, including following operating procedure：
1) Waste water concentrating is handled：Pending waste water is added in clay container, clay container is then placed in illumination
Under the conditions of, waste water is outwards evaporated by clay container, is reclaimed the moisture content evaporated, is obtained recycle-water；
2) it is concentrated by evaporation after the waste water in clay container to the solid-liquid specific concentration of restriction, will be dense in clay container
Contracting liquid carries out pollutant component processing and/or nutrient recycling.
Optionally, step 2) described in pollutant component processing include metal ion electroreduction handle or oil recovery at
Reason.
Optionally, step 2) described in nutrient recycling specific method be：Concentrate is added in sedimentation basin, carried out
Precipitation process；Then the supernatant liquid after precipitation process is reclaimed, recovered liquid is obtained；By lower floor's solid sediment dress after precipitation process
Enter in clay storage tank, clay storage tank be placed under illumination condition, the moisture content in solid sediment by clay storage tank to
Outer evaporation, solid sediment obtains drying process, after the water content of solid sediment reaches requirement, takes out dried solid
Body sediment, is made solid fertilizer.
Precipitum (soil, sand grains) and/or chemical coagulator can be promoted using physics is added during precipitation process, to add
The sinking speed of fast solid matter；Chemical coagulator is typically by the salt that slightly solubility is generated with water soluble ion, so as to reach
To the purpose for promoting sedimentation, generally need to adjust acid-base value when adding chemical coagulator, prevent the salt generated from resolving into again water-soluble
Property ion.Phosphate anion is for example reclaimed, lime can be added and adjust solution to alkalescence condition, calcium ion and phosphate anion
Generate calcium phosphate precipitation.If reclaiming ammonium ion, need addition sulfate that solution is adjusted to acid condition.Sulfate radical from
Son is combined the ammonium sulfate of generation slightly solubility with the ammonium ion in water.
Above-mentioned steps 2) in the production process of waste water, contained composition are regarded to the processing mode of concentrate and reclaim target and
It is fixed.For example, for the waste water of oil exploitation and the waste water of petroleum refining industry, or leather-making enterprises, substantial amounts of grease is contained in water, give up
Water is by step 1) concentration after, into oil interceptor, oil slick is collected by the Oil scraper and oil collecting pipe that are located at pond face, reclaimed
Utilize.For the waste water of mining, the production of metallurgical or electroplating industry, contain substantial amounts of heavy metal ion in water, waste water passes through step
1) after concentration, into electrolytic cell, electroreduction processing is carried out to metal ion, the metal ion in waste water, drop is reclaimed
The content of metal ion in low waste water, it is to avoid form metallic pollution during discharge of wastewater or recycling.
Optionally, when pending waste water can discharge NH3When, step 1) in also include adjusting pending waste water pH value it is small
Added in 7 in clay container, and maintain the pH value of waste water to be less than 7 in whole evaporation process.So that what is be concentrated by evaporation is whole
NH during individual3With NH4 +Form exist, prevent Ammonia valatilization from causing gaseous contamination and potential safety hazard.
Optionally, the recovered liquid return to step 1 obtained in chemical precipitation processing procedure) add in clay container under progress
Evaporation and concentration operation once.
Optionally, above-mentioned steps 1) in obtained recycle-water after Waste water concentrating processing, can regard composition in recycle-water and
It is fixed, for cleaning container or as freshwater resources for the processing of further tap water purifying.For example organic wastewater is concentrated
Cheng Zhong, may with some gas with foreign flavor molecules effusion, such as ammonia (NH3), amine, sulfide (H2S) etc., during condensation vapor,
These gas molecules can be also dissolved in water；If without poisonous or gas with foreign flavor molecule in waste water, the condensed water of recovery is qualified
Fresh water, can be used for tap water purifying processing.
Optionally, above-mentioned clay container and clay reservoir surface are without bristol glaze, rough surface.
The device of the method for above-mentioned concentration Sewage treatment nutrient, including be concentrated by evaporation unit, evaporation Water Sproading unit, reclaim
Water storage element, concentrate precipitation unit, solid sediment drying unit, recovered liquid storage element and solid fertilizer storage are single
Member；The evaporation and concentration unit includes at least one set of evaporation concentration device, and every group of evaporation concentration device has including at least one
The clay container of pending waste water is contained, the clay container is provided with inlet and liquid outlet；The evaporation Water Sproading
Unit includes extractor fan and condensation reservoir, and the extractor fan is used to pump the moisture content that evaporation and concentration unit is evaporated to condensation
Recycle-water is condensed to obtain in pond；The concentrate precipitation unit includes at least one sedimentation basin；The solid sediment drying unit
The clay storage tank for being used to contain solid sediment including at least one.
Optionally, it is concentrated by evaporation unit and solid sediment drying unit is installed in heliogreenhouse.
Optionally, the four sides enclosure wall of the heliogreenhouse and roof are made by transparent glass.It is concentrated by evaporation in unit
Clay storage tank in clay container and solid precipitation drying unit is in heliogreenhouse by direct sunlight.
Optionally, clay container is placed vertically, in order to avoid solid deposits are in bottom in waste water, the clay system
The inlet of container be located at clay container bottom, liquid outlet be located at clay container middle part or top so that waste water from
The bottom of clay container is redirected back into, and has reverse impulsive force to the solid matter of sinking, it is to avoid solid matter is in bottom
Deposition.
The number at least two of clay container in every group of evaporation concentration device.Clay in every group of evaporation concentration device
The number of container depending on solid-liquid concentration in wastewater treatment capacity and waste water, usual wastewater treatment capacity is big, solid-liquid concentration is low, it is necessary to
Occasion more than the moisture content of recovery, the quantity of clay container is more.
The group number of evaporation concentration device in the evaporation and concentration unit is at least two groups, two adjacent groups evaporation concentration device
Between be provided with for reclaim one group of front end evaporation concentration device discharge concentrate slurries collecting pipe.From multigroup evaporation
Upgrading unit can realize the multistage concentration to waste water, during first order concentration, because solid-liquid concentration is relative
Relatively low, clay container can select small size, with the increase of concentration series, and solid-liquid concentration also can be with increase, in waste water
Solids content increases, usually using large-sized clay container, it is ensured that waste water can normally circulate in clay container, keep away
Exempt to result in blockage.The size of clay container is depending on the concentration of solid matter in pending waste water, it is generally the case that work as concentration
It is 10~20cm of inside radius, a length of 300cm earthen-ware pipe from clay container during for 300~400mg/L；When concentration is 4000
It is 20~30cm of inside radius, a length of 300cm earthen-ware pipe from clay container during~5000mg/L.
Generally, when solid concentration concentrates 10 times or so in the waste water of one group of evaporation concentration device processing, into next group
Evaporation concentration device.
In order to further avoid solid matter in waste water from forming deposition in earthen-ware pipe, the clay container is fixed on
On shaking table, the position of earthen-ware pipe, the go between two kinds of positions of setting and horizontal are controlled by shaking table.Each shaking table can be fixed
Several to tens of earthen-ware pipes.
Optionally, the sedimentation basin bottom of pond is obliquely installed, and the one end tilted down is provided with hinged fender, the activity
Solid sediment is discharged from sedimentation basin after mud guard is opened.The solid sediment of bottom of pond under gravity, is concentrated on downwards
Inclined one end, after the hinged fender set at this is opened, solid sediment continues to enter clay system under gravity
In storage tank.
Optionally, it is provided between sedimentation basin and the clay storage tank for solid sediment to be imported into clay storage tank
Funnel, the heavy caliber of the funnel is small-bore towards clay storage tank towards the bottom of sedimentation basin.
Optionally, the bottom of the clay storage tank is additionally provided with the railroad for controlling clay storage tank to move,
When needing to pour into solid sediment into clay storage tank, start railroad and clay storage tank is moved to correspondence funnel
Small-bore outlet, after solid sediment is received, starts railroad and the removal of clay storage tank is placed under illumination condition
Processing is dried.
Optionally, in order to improve the stability that clay storage tank is placed, the clay storage tank is low wide and up narrow tubbiness
Body.
Optionally, said apparatus includes the cleaning unit for being used to clean clay container and clay storage tank, the cleaning
Unit include cleaning solution rotary cleaning device, the cleaning solution rotary cleaning device include be used for place container to be cleaned and
The open rinse bath for being used to store cleaning solution in the hand basket of storage tank, upper end；It is equipped with the hand basket for fixing to be cleaned
The support frame of container and storage tank；The bottom of the rinse bath is provided with the impeller of horizontal rotation, and the impeller rotation drives cleaning
Solution rotating is entered in container to be cleaned or storage tank by bottom and is rotated up to the top of container to be cleaned or storage tank.The cleaning is molten
The same dish-washing machine of operation principle of liquid rotary cleaning device.
Further alternative, the bottom of the hand basket is provided with the cunning for controlling hand basket to move into and remove rinse bath
Rail device.
Optionally, above-mentioned cleaning unit also includes connecting on self-rotating cleaning device, including motor, the output shaft of the motor
Roller is connected to, the roller includes two support frames for being used to fix container to be cleaned that interval is oppositely arranged；It is described to treat clear
The rotation direction for extending perpendicularly to roller for the container washed.The self-rotating cleaning device is by driving container to be cleaned
The cleaning to container that spinning is realized, is generally used for cleaning the earthen-ware pipe container of small size.
The present invention concentration waste water or reclaim nutrient method, pending waste water is fitted into clay container first carry out it is dense
Contracting is handled.On the one hand because of the distinctive heat absorption insulation effect of clay, the moisture content in waste water evaporates from the capillary interstice of earthen-ware pipe, to useless
Water is concentrated, while carrying out sterilizing to waste water using illumination, moisture content in waste water and dry are separately recovered for realization
Utilize；On the other hand, for the efficiency of waste water treatment process, concentration is carried out to waste water, chemical reaction can be improved
Concentration of substrate, so as to improve reaction speed, effectively reclaims pollutant (such as heavy metal ion) or carries out harmless treatment.For thing
For reason method, Waste water concentrating processing after, can improve pollutant sedimentation, it is overanxious or separation speed, save processing time and
Disposal field, reduces cost.
Further, the inventive method is on the one hand chemical using adding during nutrient is reclaimed using precipitation process
The Nutrient retranslocations such as nitrogen, phosphorus into solid sediment, dephosphorization denitrogenation processing are carried out to waste water by the method for flocculant, are realized to nutrient
Recycling, solve current environment crisis, slow down greenhouse gas emission, protection water and soil resources；On the other hand, solid is precipitated
Thing, which is placed in clay storage tank, is dried processing, heating effect and ventilative, the heat absorption insulation effect of pottery using solar energy,
Solid pollutant is subjected to drying processing and causal organism is killed, so that solid nutrient (including carbon, nitrogen, phosphorus) is recycled or nothing
Evilization processing, improves the security for reclaiming nutrient, and solid sediment is dried into processing and make solid nutrient, is easy to storage
Fortune transport and further harmless treatment.
All in all, beneficial effects of the present invention are：
1) new technology is provided for the processing of industrial wastewater.Industrial wastewater is usually unprocessed to be arranged steathily, even if or processing
Also be not reaching to discharge standard, wherein it is important the reason for be the with high costs of wastewater treatment.Enterprise has to save production cost
Very strong power and the illegal discharge of hope.For this behavior, on the one hand we will strengthen the dynamics of law enforcement for environmental protection, on the other hand
Superior technique to be also provided, the cost of environmental protection is reduced, target can just be reached by only working along both lines.The technology operation spirit
Living, effect stability, technique is simple, and operating cost is low；To the strong adaptability of water, change of water quality；Sludge bulking is prevented, denitrogenation is removed
Phosphorus effect is good；Good effect of separating solid from liquid, it is easy to which physical and chemical process is combined；
2) technical support is provided for food security：Heliogreenhouse has very strong heating effect, and clay container is a kind of resistance to
The material of high temperature, there is heat absorption and heat-insulating property well.The technology is by human and animal excreta and the sewage from hospital concentrates on day
Concentrated in the earthen-ware pipe in light greenhouse, be a kind of lasting high temperature antivirus processing.This slow and cheap processing, is saving the energy
While, virus, bacterium and other causal organisms can be killed.The medicine of people and animals' discharge, particularly various antibiotic and related generation
Thank to product, also can further decompose, be denatured at high temperature.This high-temperature process ensure that the security that nutrient is reclaimed.Reclaim
It is safe that the nutrient of fertilizer in the environment discharges again, is also safe to food and health；
3) water conservation, technical support is provided for the tightened up environmental regulation of formulation：, in the environmental regulation in future
By water, soil, air, solid waste, mining, discharge of industrial wastes, development of the West Regions, marine resources conservation and utilize etc. all
An entirety is included in field, is carried out system combing, is therefrom found out key link and bottleneck is assaulted fortified position, so as to play technological progress
Leverage.In current environmental crisis, water and soil pollution reciprocal causation, vicious circle.We will break this and pernicious follow
Ring, is just necessary to switch off introductory path, carries out sterilization policy.
For water system, the water system of the past is all communicated, and the water of all rainwashes finally all passes through rivers and lakes stream
Enter ocean.Since the industrial revolution, the mankind are too big to the destructive power of the earth, and all sewage, waste water are all discharged into natural stream networks, dirty
Our drinking water source has been contaminated, the water source of food planting industry and aquaculture is also polluted.We are discharged into the various pollutants of water system
Last by us, oneself own eat again, and the process of this food chain enrichment pollution is very long.It is industrial and agricultural production mode, personal daily
Life and consumer behavior have close relationship with food security.
Mining and the heavy metal and the difficult organic pollution decomposed of industrial production discharge, what agricultural production was applied extensively
A large amount of veterinary drugs used in chemical fertilizer and agricultural chemicals, aquaculture, also have we everyone with more and more various antibiotic and other
Medicine, throws away to obtain increasing rubbish.All these, all pass through water -- soil -- food and drinking water this approach and are returned to
Our body.Modern's increasing " strange illness " is just derived from the ubiquitous life style of this pollution.
With current sewage disposal technology, can not water conservation safety.The dirt that we can only discharge the mankind
Water is completely isolated with natural stream networks.It would therefore be desirable to two sets of water systems, a set of is the natural stream networks of necessary strict protection, it is impossible to
Again any sewage is discharged to her；Another set of is the sewage disposal and recovery system manually built up.According to relevant information introduction, city
The sewage rate of recovery only has 10%, and other sewage are all discharged into natural stream networks after extensive " processing ".
The recycling efficiency of sewage is improved, it is necessary to corresponding technology innovation.This invention makes the recycling of sewage
It is possibly realized.There is this technology, environmental administration can formulate more strict " blowdown license ".In the future, if city dweller
Building and office space are all forbidden to discharge fecaluria to urban sewage system, and each residential area or building can self-built nutrient recovery
Stand.Sewage after nutrient is reclaimed can be used for urban green space and treegarden irrigation.Can also be used for flushing the toilet after other sanitary sewage disposals,
Road-cleaning, vehicle cleaning, construction site and fire demand water.The sewage in various sources is all blended in by large-scale sewage treatment plant
Together, it is difficult to really remove its pollutant.Scattered small sewage treatment plant can improve the recovery utilization rate of sewage on the contrary.
4) soil protection, reduces greenhouse gas emission：Using this invention, the nitrogen and phosphorus of humans and animals discharge can be reclaimed.
These nutrients can return to the production base of various kinds of foods again after long distance transportation, realize recycling for plant nutrient.Have
These are available for the nutriment recycled, so that it may reduce the amount of application of chemical fertilizer, while soil protection, decrease chemical fertilizer work
The fuel consumption of factory and greenhouse gas emission.The phosphate of recovery turns into a kind of phosphate fertilizer slowly discharged, will not after being manured into soil
Dissolve rapidly and discharge substantial amounts of phosphate anion.This phosphate fertilizer slowly discharged is conducive to soil protection fungi, improves phosphate fertilizer
Utilization ratio.Field experiment proves that the organic fertilizer not handled by this " dephosphorization denitrogenation " accelerates soil bacteria to organic
The decomposition of matter, more CO2 are discharged to air.
5) it is that following human settlement and breeding facility provide design standard, building is met the requirement of nutrient recovery：
Present farm building and urban architecture becomes increasingly to duplicate.Whether rural area or cities and towns, the nutrient of night soil are reclaimed all
Become more and more difficult.This invention solves conflicting for modern way of life and the Nature circulation law.This technology both may be used
Applied to densely populated city, the rural area of population decentralization can also be applied to；Sheet of residential block is can be applied to, can also be applied
In the villanette of only.Nutrient recovery technology will provide design standard for following human settlement.The operation principle of this technology
It can also be applied to the night soil-treatment of livestock and poultry breeding industry.The excrement amount that animal produces is far above the excrement amount of people.The technology is being supported
The application of industry is grown, will be that soil protection and water resource make bigger contribution.
6) development of related environmental protection industry is driven：One good technology can drive the development of whole piece industrial chain.This skill
The design concept of art leaves very big space for the change of adjacent link.For example, changing the pipe-line system in house, horse of drawing water
The pipeline of bucket is separated with the pipeline of other sanitary sewages；Change the water yield of water closet；Change existing septic tank design and
Function；Resident living water is recycled.For example, rushing closestool with the water having a bath, laundry takes.
The improvement project amount of this infrastructure is huge, involves numerous industry links.For example, with average for each person every day
2 kilograms of meters of defecation urine (0.5 kilogram of stool, 1.5 kilograms of urine), contained dry only has 0.18 kilogram.If allowing septic tank
Interior dry matter content is maintained at 1% or so level, public no more than 18 for rushing the water of closestool or lavatory for each person every day
Jin.The water flushed the toilet in present city is probably 5 to 10 times of this " ideal value ".Only water closet or urinal change
Make one, it is necessary to numerous patented technologies.
In the past, do not have the theory of environmental protection when designing these sanitary wares.All these products can not all meet environmental protection
It is required that.Be not can not, but not for.By taking the crouching formula urinal of public lavatory as an example, if the flat placed type of urinal is changed to tilt
Formula, it is possible to save substantial amounts of amount of flush water.If the disposable water yield of jet water spout is changed into small, substantial amounts of water can be also saved.It is useless
Except the bathtub of family and hotel, the water of flood tide can be more saved.In a word, saved and environmentally friendly theory as long as having, our day
Normal living facilities, there is a large amount of improvable leeway.
Brief description of the drawings
Fig. 1 is the overall structure of the evaporation and concentration unit of the device of concentration Sewage treatment nutrient provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 be it is provided in an embodiment of the present invention concentration Sewage treatment nutrient device in sedimentation basin overall structure signal
Figure；
Fig. 3 is the whole of the solid sediment drying unit of the device of concentration Sewage treatment nutrient provided in an embodiment of the present invention
Body structural representation；
Fig. 4 is the cleaning agent rotary cleaning device in the device of concentration Sewage treatment nutrient provided in an embodiment of the present invention
Overall structure diagram；
Fig. 5 is self-rotating cleaning device structural representation provided in an embodiment of the present invention；
Fig. 6 is the integrated artistic schematic flow sheet of the method for concentration Sewage treatment nutrient provided in an embodiment of the present invention；
1 it is earthen-ware pipe, 2 be concentrate collecting pipe, 3 be sedimentation basin, 4 be supernatant, 5 be mobilizable mud guard, 6 is precipitation
The inclined bottom in pond, 7 be terrine, 8 be funnel, 9 be axle, 10 be rotatable impeller, 11 be the support frame of fixed terrine, 12 be
Hand basket, 13 be terrine rinse bath, 14 be Shower tap, arrow 15 represent water (flow) direction, 16 be roller, 17 be tank, 18 being
Manure pit, 19 be concentrated by evaporation unit, 20 be extractor fan, 21 be underground condensation reservoir, 22 be back pool, 23 be cleaning unit, 24
It is solid sediment drying unit for funnel, 25,26 is to integrate mud sump, 27 as liquid return tank.
Embodiment
Technical scheme is described in detail below by specific embodiment.
Embodiment
The present embodiment thickened waste reclaims the device of nutrient, as shown in figs. 1 to 6, including is concentrated by evaporation unit, evaporation Water Sproading
Unit, recycle-water storage element, concentrate precipitation unit, solid sediment drying unit, recovered liquid storage element and solid fertilizer
Expect storage element；
It is concentrated by evaporation unit and solid sediment drying unit is installed in four sides enclosure wall and roof by transparent glass system
Into heliogreenhouse in；Recycle-water storage element is back pool, and it is liquid return tank, solid fertilizer to reclaim sedimentation basin supernatant storage element
It is collection mud sump to expect storage element；
The evaporation and concentration unit includes two groups of evaporation concentration devices, respectively one-level evaporation concentration device and dual evaporation
Enrichment facility, every group of evaporation concentration device includes 5 earthen-ware pipes for containing pending waste water, and earthen-ware pipe is straight by sunlight in heliogreenhouse
Penetrate, wherein when pending waste strength is 300~400mg/L, the size of the earthen-ware pipe of one-level evaporation concentration device is interior
Radius 10~20cm, a length of 300cm；Waste water concentrates 10 times in Upstream section evaporation concentration device, when concentration be 4000~
During 5000mg/L, the size of the earthen-ware pipe of dual evaporation enrichment facility is inside radius 20~30cm, a length of 300cm；Should can
With understanding, the cylindrical structural of above-mentioned earthen-ware pipe is clay container to be made for example, clay container also may be used
Think square column form, or triangular stud form, or other structures shape, it is only necessary to according to above-mentioned concentration with
The volume size correspondence that can pass through for liquid inside clay container is designed, it is ensured that pending waste water can pass freely through pottery
Native container, the blocking to clay container is not caused；
Simultaneously it should be appreciated that the number for organizing earthen-ware pipe in number and evaporation concentration device of above-mentioned evaporation concentration device
It is used only for for example, not constituting the specific restriction to apparatus of the present invention, the group number of specific evaporation concentration device and steaming
The number for sending out earthen-ware pipe in enrichment facility regards the treating capacity of pending waste water, and pending waste water is needed depending on the degree of concentration.Waste water
Treating capacity is big, solid-liquid concentration is low, it is necessary to occasion more than the moisture content reclaimed, it is necessary to evaporation concentration device group number it is many, each evaporation
The number of earthen-ware pipe is more in enrichment facility.
As shown in figure 1, earthen-ware pipe is placed vertically, in order to avoid in waste water solid deposits in bottom, the inlet of earthen-ware pipe
Positioned at the bottom of earthen-ware pipe, liquid outlet is located at the top of clay container so that the bottom of waste water from clay container is redirected back into,
There is reverse impulsive force to the solid matter of sinking, it is to avoid deposition of the solid matter in bottom；
Meanwhile, in order to further avoid solid matter in waste water from forming deposition in earthen-ware pipe, earthen-ware pipe can be fixed
On shaking table, the position of earthen-ware pipe is controlled by shaking table, the go between two kinds of positions of setting and horizontal, each shaking table can be consolidated
Fixed number root is to tens of earthen-ware pipes.
As shown in figure 1, the upper end of every group of evaporation concentration device is provided with concentrate collecting pipe, for concentrate to be imported
Next group of evaporation concentration device imports concentrate precipitation unit；
Evaporating Water Sproading unit includes extractor fan and condensation reservoir, and extractor fan is used to be concentrated by evaporation what unit was evaporated
Moisture content is pumped condenses to obtain recycle-water into condensation reservoir；
Concentrate precipitation unit includes at least one sedimentation basin, and solid sediment drying unit, which includes at least one, to be used to contain
Fill the terrine of solid sediment.As shown in Fig. 2 sedimentation basin bottom of pond is obliquely installed, the one end tilted down is provided with active catch mud
Plate.The solid sediment of bottom of pond under gravity, concentrates on the one end tilted down, and the hinged fender set at this is opened
Afterwards, solid sediment continues to enter in next step processing unit under gravity；
As shown in figure 3, the funnel for solid sediment to be imported to terrine is provided between sedimentation basin and terrine, funnel
Heavy caliber is small-bore towards terrine towards the bottom of sedimentation basin.
The movement of terrine for convenience, the bottom of terrine is additionally provided with the railroad for controlling terrine to move, when need
When pouring into solid sediment into terrine, start the small-bore outlet that terrine is moved to correspondence funnel by railroad, when solid
After body sediment is received, terrine is removed to be placed under illumination condition by startup railroad is dried processing.
The present embodiment device also includes the cleaning unit for being used to clean earthen-ware pipe and terrine.Cleaning unit revolves including cleaning solution
Turn cleaning device, as shown in Figure 4.Hand basket that cleaning solution rotary cleaning device includes being used for placing earthen-ware pipe to be cleaned and terrine,
The open rinse bath for being used to store cleaning solution in upper end；The support for fixing earthen-ware pipe to be cleaned and terrine is equipped with hand basket
Frame；The bottom of rinse bath is provided with the impeller of horizontal rotation, and impeller rotation drives cleaning solution rotation to enter to be cleaned by bottom
In container or storage tank and it is rotated up to the top of container to be cleaned or storage tank, the operation principle of the cleaning solution rotary cleaning device
The 14 of upper end are Shower tap in same dish-washing machine, figure, and lower end arrow represents water (flow) direction of the water after impeller；Can be by setting
Hand basket is movable into and out rinse bath by the mode for putting rail structure, or manually by hand basket proposition and is fitted into rinse bath.
Further, the earthen-ware pipe of small size is cleaned for convenience, and cleaning unit also includes self-rotating cleaning device, such as Fig. 5
It is shown, including motor, it is connected with roller on the output shaft of motor, what roller included that interval is oppositely arranged is used to fix to be cleaned
Two support frames of container；The rotation direction for extending perpendicularly to roller of container to be cleaned.The self-rotating cleaning device
It is the cleaning to container by driving the spinning of container to be cleaned to realize.
The concentration of organic wastewater, including sanitary sewage and industrial wastewater, Tathagata is processed from fermentation industry, starch, system
The waste water of the industry such as sugar, can, beverage, milk and dairy products, fruits and vegetables, bean product, meat packing, including recyclable has
Machine thing and nitrogen phosphorus nutrient.If the nitrogen phosphorus nutrient in these organic wastewaters flows into rivers, lake and sea, the ecosystem will be made
Into irremediable destruction.Therefore, the nutrient in organic wastewater is reclaimed, is not only from economic angle, in order to save
Cost and recycle carbon, nitrogen, phosphor resource, prior target is that the discharge of greenhouse gases is reduced for environmental protection.
In city domestic sewage emission greenhouse gas at most be slop in septic tank.In addition, animal husbandry is supported
The animal wastes grown also discharge substantial amounts of greenhouse gases in decomposable process.Below using in urban architecture septic tank sewage as
Example, the method to illustrate the concentration Sewage treatment nutrient implemented using the present embodiment device, is denitrogenated dephosphorization to sewage, realizes nutrient
Reclaim：Its technological process is as shown in fig. 6, concrete operation step is as follows：
1) acid solution is added in septic tank, by sewage regulation to acidity, the acid stoste of septic tank is pumped into evaporation
The one-level evaporation concentration device of upgrading unit, under the irradiation of light, the acid stoste in earthen-ware pipe is concentrated by evaporation, evaporating concentration process
The pH value of the middle acid stoste of monitoring, adjusts its pH value and is maintained acid；When acid stoste solid matter concentration improve 10 times with
Afterwards, the concentrate in earthen-ware pipe is introduced into concentrate collecting pipe, concentrate is pumped into dual evaporation concentration from concentrate collecting pipe
In device, under the irradiation of light, the concentration for the concentrate that the concentrate in earthen-ware pipe reaches required for being further concentrated into；Will
The moisture content evaporated in whole evaporating concentration process is pumped into the condensation reservoir of underground by extractor fan, and condensation is recycled water, is reclaimed
Water collection storage is in recovery pond；Recycle-water is according to its component content, available for afforestation, landscape amusement, urban reclaimed water
With cleaning terrine and earthen-ware pipe；
2) concentrate after the concentration of dual evaporation enrichment facility is imported to the concentration of dual evaporation enrichment facility upper end
In liquid collecting pipe, concentrate is imported in sedimentation basin by concentrate collecting pipe, Sulfates, sulfate ion are delivered in pond
Generation slightly solubility ammonium sulfate is combined with ammonium ion, and organic matter sinks together, make colloidal suspension produce cohesion and under
It is heavy；A small amount of soil or ashes is added, the lipoid material floated is adsorbed, accelerates subsidence velocity；When more than 50%~60%
After organic matter all sinks, supernatant liquid is imported in next sedimentation basin, put into next sedimentation basin in lime, regulating reservoir
Liquid is alkalescence, the phosphate anion in liquid sinks the phosphate with calcium binding into slightly solubility, and more than 90% has
After machine thing sinks, terminate precipitation process, supernatant liquid enters liquid return tank and returns to septic tank, into the processing of evaporation and concentration next time；
3) respectively opening steps 2) in sedimentation basin hinged fender, the solid sediment of sedimentation basin lower floor is in Action of Gravity Field
Under fall into funnel, then fall into the terrine in solid sediment drying unit, the terrine for being loaded into solid sediment is placed in day
In light greenhouse, under the irradiation of light, solid sediment is dried, and is dried the solid sediment completed and is taken out from terrine, is stored
In collection mud sump, as solid fertilizer, that is, complete.
In the present embodiment method running, it is necessary to the cleaning unit provided in using the present embodiment device to terrine and
Earthen-ware pipe is cleaned.
It is to be understood that the apparatus and method of the present embodiment are for needing to entering in the nutrient in solid matter
It is that row is recycled for example, when grease, metallic element contained in waste water etc. is excessive, can be by setting oil interceptor
And/or the mode of metal ion electrolytic reduction device, it is evaporated by pending waste water after concentration, carries out grease
Recycle processing and/or metal ion recycling processing.
In actual application, the apparatus and method provided according to the present embodiment set up wastewater treatment and nutrient is reclaimed
Stand, wherein earthen-ware pipe quantity, the area of sedimentation basin, sewage are in the parameter such as earthen-ware pipe and sedimentation basin residence time, depending on three sides
The variable in face：1. stoste amount to be processed and its nutrient density are needed；2. local sunshine-duration and percentage of sunshine；3. it is local
Temperature and evaporation capacity.The concentration in pottery of temperature and weather conditional decision sewage or sludge, drying time and final recyclable
Moisture content.Temperature is higher, air more drying, and earthen-ware pipe quantity and surface area are fewer needed for handling the stoste of equal volume.In difference
Weather conditions under, the operation principle of nutrient recycle bin is identical, but the ins and outs such as operating process can be different.Meanwhile, should
Can be by building the heliogreenhouse of artificial lighting when being understandable that, it is to avoid limited by natural climate condition.
Claims (10)
1. a kind of method for concentrating waste water or reclaiming nutrient, it is characterised in that including following operating procedure：
1) Waste water concentrating is handled：Pending waste water is added in clay container, clay container is then placed in illumination condition
Under, waste water is outwards evaporated by clay container, is reclaimed the moisture content evaporated, is obtained recycle-water；
2) it is concentrated by evaporation after the waste water in clay container to the solid-liquid specific concentration of restriction, by the concentrate in clay container
Carry out pollutant component processing and/or nutrient recycling.
2. as claimed in claim 1 concentration waste water or reclaim nutrient method, it is characterised in that step 2) described in pollute into
Office reason includes the processing of metal ion electroreduction or oil recovery processing.
3. as claimed in claim 1 concentration waste water or reclaim nutrient method, it is characterised in that step 2) described in nutrient return
Receiving the specific method handled is：Concentrate is added in sedimentation basin, precipitation process is carried out；Then the upper strata after precipitation process is reclaimed
Liquid, obtains recovered liquid；Lower floor's solid sediment after precipitation process is fitted into clay storage tank, clay storage tank is placed in light
According under the conditions of, the moisture content in solid sediment is outwards evaporated by clay storage tank, and solid sediment obtains drying process, treats solid
The water content of body sediment is reached after requirement, takes out dried solid sediment, and solid fertilizer is made.
4. a kind of implement concentration waste water as claimed in claim 1 or the device for the method for reclaiming nutrient, it is characterised in that including
Be concentrated by evaporation unit, evaporation Water Sproading unit, recycle-water storage element, concentrate precipitation unit, solid sediment drying unit,
Recovered liquid storage element and solid fertilizer storage element；The evaporation and concentration unit includes at least one set of evaporation concentration device, often
Group evaporation concentration device, which includes at least one, has the clay container for containing pending waste water, and the clay container is provided with
Inlet and liquid outlet；The evaporation Water Sproading unit includes extractor fan and condensation reservoir, and the extractor fan is used for will evaporation
The moisture content that upgrading unit is evaporated is pumped condenses to obtain recycle-water into condensation reservoir；The concentrate precipitation unit includes at least one
Sedimentation basin；The solid sediment drying unit includes the clay storage tank that at least one is used to contain solid sediment.
5. device as claimed in claim 4, it is characterised in that be concentrated by evaporation unit and solid sediment drying unit is respectively mounted
In heliogreenhouse.
6. device as claimed in claim 4, it is characterised in that the inlet of the clay container is located at clay container
Bottom, liquid outlet is located at the middle part or top of clay container.
7. device as claimed in claim 4, it is characterised in that the number of the clay container in every group of evaporation concentration device is extremely
It is two less；The group number of evaporation concentration device in the evaporation and concentration unit is at least two groups, and two adjacent groups are concentrated by evaporation dress
The slurries collecting pipe for the concentrate that the evaporation concentration device for reclaiming one group of front end is discharged is provided between putting.
8. device as claimed in claim 4, it is characterised in that the sedimentation basin bottom of pond is obliquely installed, the one end tilted down
Hinged fender is provided with, solid sediment is discharged from sedimentation basin after the hinged fender is opened.
9. device as claimed in claim 8, it is characterised in that be provided between sedimentation basin and the clay storage tank for inciting somebody to action
Solid sediment imports the funnel of clay storage tank, and the heavy caliber of the funnel is small-bore towards pottery towards the bottom of sedimentation basin
Soil storage tank processed.
10. device as claimed in claim 4, it is characterised in that including for cleaning clay container and clay storage tank
Cleaning unit, the cleaning unit includes cleaning solution rotary cleaning device, and the cleaning solution rotary cleaning device includes using
The rinse bath for being used to store cleaning solution of hand basket, upper end opening in placement container to be cleaned and storage tank；The hand basket is built-in
Equipped with the support frame for fixing container to be cleaned and storage tank；The bottom of the rinse bath is provided with the impeller of horizontal rotation, institute
State impeller rotation drive cleaning solution rotation entered by bottom in container to be cleaned or storage tank and be rotated up to container to be cleaned or
The top of storage tank.
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| CN201710294894.3A CN107032427A (en) | 2017-04-28 | 2017-04-28 | A kind of method and device for concentrating waste water or reclaiming nutrient |
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| CN201710294894.3A CN107032427A (en) | 2017-04-28 | 2017-04-28 | A kind of method and device for concentrating waste water or reclaiming nutrient |
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|---|---|---|---|---|
| CN1215344A (en) * | 1996-02-09 | 1999-04-28 | 斯坦内尔公司 | Arrangement for evaporating liquid active material |
| CN201415951Y (en) * | 2009-05-22 | 2010-03-03 | 牛强 | System utilizing multifold condensing solar power to separate saline wastewater |
| CN103204601A (en) * | 2013-04-23 | 2013-07-17 | 清华大学 | Wastewater treatment method |
| CN103466870A (en) * | 2013-08-22 | 2013-12-25 | 苏州苏净环保工程有限公司 | Material recovery method of wastewater containing high-concentration ammonia-nitrogen and heavy metal ions and treatment system |
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Application publication date: 20170811 |