CN109892221A - The efficient recycling and processing equipment of one plant nutrient liquor and method - Google Patents
The efficient recycling and processing equipment of one plant nutrient liquor and method Download PDFInfo
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- CN109892221A CN109892221A CN201910148245.1A CN201910148245A CN109892221A CN 109892221 A CN109892221 A CN 109892221A CN 201910148245 A CN201910148245 A CN 201910148245A CN 109892221 A CN109892221 A CN 109892221A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The present invention relates to the efficient recycling and processing equipment of a plant nutrient liquor and methods, including circulating cultivation frame, standing reservoir case, nutrient solution mother liquor supply unit, quartz sand-activated carbon adsorption retention unit and high-strength ultraviolet light mineralization unit；Nutrient solution mother liquor supply unit is connect with standing reservoir case；The outlet of standing reservoir case is connect by the first infusion branch and the second infusion branch with circulating cultivation frame import, and the outlet of circulating cultivation frame is connect with standing reservoir case import, to carry out the circulation of plant nutrition liquid；First infusion branch curb nutrient input send direction to be successively arranged quartz sand-activated carbon adsorption retention unit and high-strength ultraviolet light mineralization unit；The present invention can supplement the nutrient of plant nutrition liquid；It is degraded and is removed using plant nutrition liquid regenerative system, and to crop residues decomposition suspended matter, root system secretion organic matter, harmful microorganism and the variant viral in plant nutrition liquid, effectively avoided crop from continuous cropping obstacle occur, ensure plant efficient growth.
Description
Technical field
The invention belongs to the efficient recycling processing technique field of water planting crops plant nutrition liquid more particularly to a kind of plant nutrients
The efficient recycling and processing equipment of liquid and method.
Background technique
One of in such a way that hydroponic plant cultivation mode is closed system implants Efficient Cultivation, plant nutrition liquid supply
The microelements such as a great number of elements such as nitrogen, phosphorus needed for plant growth, potassium and boron, zinc, manganese.Appoint meeting the following Long-term Manned Spaceflight
In the closed system of business, resource is carried to reduce, and reduce waste discharge as far as possible, need to realize the long-term efficient of plant nutrition liquid
Circulating and recovering.Plant nutrition liquid recycles for a long time faces two problems: first is that in plant nutrition liquid nutrient missing, shadow
It rings plant normal growth and forms complete life cycle；Second is that since secretions from plant roots and crop residues decomposition substance are tired
Long-pending, organic matter accumulation in confined space waste water circulatory system phegma, and a large amount of harmful microorganisms are bred, and plant is caused to generate
Continuous cropping obstacle, cause yield reduce, quality deteriorate, bearing status be deteriorated the phenomenon that.To solve the above problems, realizing closed system
Middle hydroponic plant plant nutrition liquid recycles, and ensures long-effect plant healthy growth, need to establish a set of based on closed loop water body
The technique and device of the efficient reuse of the plant nutrition liquid of flowing.
Summary of the invention
The object of the present invention is to provide the efficient recycling and processing equipment of a plant nutrient liquor and methods, to solve above-mentioned technology
Problem.
The present invention provides the efficient recycling and processing equipments of a plant nutrient liquor, including circulating cultivation frame, standing reservoir
Case, nutrient solution mother liquor supply unit, quartz sand-activated carbon adsorption retention unit and high-strength ultraviolet light mineralization unit；
Nutrient solution mother liquor supply unit is connect with standing reservoir case, for feeding plant growth into standing reservoir case
Required a great number of elements and microelement；
The outlet of standing reservoir case is connect by the first infusion branch and the second infusion branch with circulating cultivation frame import, is followed
The outlet of ring cultivating stand is connect with standing reservoir case import, to carry out the circulation of plant nutrition liquid；
First infusion branch curb nutrient input send direction to be successively arranged quartz sand-activated carbon adsorption retention unit and high-strength purple
Outer smooth mineralization unit retains unit by quartz sand-activated carbon adsorption and high-strength ultraviolet light mineralization unit is combined to plant nutrient
Crop residues decomposition suspended matter, root system secretion organic matter, harmful microorganism and variant viral in liquid are degraded and are removed；The
Two infusion branches are to surmount pipe；
Quartz sand-activated carbon adsorption retention unit and the import for surmounting pipe are equipped with for switching the first infusion branch and second
The solenoid valve of infusion branch；Nutrient solution mother liquor supply unit is equipped with the solenoid valve for controlling mother liquor output；
Phosphate, nitrate, organic matter on-line computing model are installed, phosphate, nitrate are online in standing reservoir case
Monitor is connect with the solenoid valve of nutrient solution mother liquor supply unit, and organic matter on-line computing model and the first infusion branch and second are defeated
The solenoid valve of liquid branch connects.
Further, quartz sand-activated carbon adsorption retention unit is along nutrient solution conveying direction by quartzy sand filter blanket, particle
Quartz sand-activated carbon filter that active carbon filtering layer is constituted.
Further, quartzy sand filter blanket is made of the quartz sand that partial size is 0.8-1.2mm, height 15cm；Particle is living
Property charcoal filtering layer by partial size be 16~32 mesh granular activated carbon constitute, height 60cm.
Further, nutrient solution mother liquor supply unit is additionally provided with the metering pump for measuring nutrient solution mother liquor output quantity.
Further, standing reservoir case is equipped with nutrient solution sample tap.
The present invention also provides the application efficient recycling and processing equipment Treatment for Reuse plant nutrition liquids of above-mentioned plant nutrition liquid
Method, comprising:
When phosphate, nitrate on-line computing model monitor phosphate and nitrate concentration lower than setting value, pass through battalion
It is micro- that nutrient solution mother liquor feeds nitrogen, phosphorus needed for unit feeds plant growth to standing reservoir case, potassium a great number of elements and boron, zinc, manganese
Secondary element.
Further, this method further include:
When nutrient solution cycle period is more than 20 days or nutrient solution organic matter on-line monitoring concentration is more than 20mg/L, make to seek
After nutrient solution comes out from standing reservoir case, it is introduced into quartz sand-activated carbon adsorption retention unit, enters high-strength ultraviolet light mineralising afterwards
Unit, finally water outlet reenters circulating cultivation frame；
When nutrient solution cycle period is less than 20 days, and nutrient solution organic matter on-line monitoring concentration is less than 30mg/L,
Make nutrient solution from standing reservoir case come out after, directly enter circulating cultivation frame by surmounting pipe.
According to the above aspect of the present invention, being fed by the efficient recycling and processing equipment of plant nutrition liquid and method using plant nutrition liquid
System supplements the nutrient of plant nutrition liquid；Using plant nutrition liquid regenerative system, cut by quartz sand-activated carbon adsorption
Unit, high-strength ultraviolet light mineralization unit are stayed, is combined organic to the crop residues decomposition suspended matter in plant nutrition liquid, root system secretion
Object, harmful microorganism and variant viral are degraded and are removed, and crop is effectively avoided continuous cropping obstacle occur, ensure that plant efficient is raw
It is long.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the efficient recycling and processing equipment of plant nutrition liquid of the present invention.
Figure label:
1- circulating cultivation frame；2- standing reservoir case；3- nutrient solution mother liquor feeds unit；4- quartz sand-activated carbon adsorption
Retain unit；41- quartz sand filter blanket；42- granular activated carbon filtering layer；The high-strength ultraviolet light mineralization unit of 5-；6- surmounts pipe；7- electromagnetism
Valve.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Join shown in Fig. 1, present embodiments provides the efficient recycling and processing equipment of a plant nutrient liquor, including circulating cultivation frame
1, standing reservoir case 2, nutrient solution mother liquor supply unit 3 (plant nutrition liquid make-up system), quartz sand-activated carbon adsorption retention
Unit 4 and high-strength ultraviolet light mineralization unit 5 (plant nutrition liquid regenerative system)；
Nutrient solution mother liquor supply unit 3 is connect with standing reservoir case 2, for feeding plant into standing reservoir case 2
A great number of elements and microelement needed for growth；
The outlet of standing reservoir case 2 is connect by the first infusion branch and the second infusion branch with 1 import of circulating cultivation frame,
The outlet of circulating cultivation frame 1 is connect with 2 import of standing reservoir case, to carry out the circulation of plant nutrition liquid；
First infusion branch curb nutrient input send direction to be successively arranged quartz sand-activated carbon adsorption retention unit 4 and high-strength
Ultraviolet light mineralization unit 5 retains unit 4 by quartz sand-activated carbon adsorption and high-strength ultraviolet light mineralization unit 5 is combined to plant
Crop residues decomposition suspended matter, root system secretion organic matter, harmful microorganism and variant viral in nutrient solution are degraded and are gone
It removes；Second infusion branch is to surmount pipe 6；
Quartz sand-activated carbon adsorption retention unit 4 and the import for surmounting pipe 6 are equipped with for switching the first infusion branch and the
The solenoid valve 7 of two infusion branches；Nutrient solution mother liquor supply unit 3 is equipped with the solenoid valve (not shown) for controlling mother liquor output；
Phosphate, nitrate, organic matter (TOC) on-line computing model (not shown), phosphoric acid are installed in standing reservoir case 2
Salt, nitrate on-line computing model and nutrient solution mother liquor supply unit solenoid valve connect, organic matter on-line computing model and first defeated
The solenoid valve 7 of liquid branch and the second infusion branch connects.
Plant nutrient is supplemented using plant nutrition liquid make-up system by the efficient recycling and processing equipment of the plant nutrition liquid
The nutrient of liquid；Using plant nutrition liquid regenerative system, unit, high-strength ultraviolet light are retained by quartz sand-activated carbon adsorption
Mineralization unit is combined to crop residues decomposition suspended matter, root system secretion organic matter, harmful microorganism and the change in plant nutrition liquid
Different virus is degraded and is removed, and crop is effectively avoided continuous cropping obstacle occur, ensures plant efficient growth.
In the present embodiment, quartz sand-activated carbon adsorption retention unit 4 is along nutrient solution conveying direction by quartzy sand filter blanket
41, quartz sand-activated carbon filter (quartz sand-activated-charcoal column) that granular activated carbon filtering layer 42 is constituted.
In the present embodiment, quartzy sand filter blanket 41 is made of the quartz sand that partial size is 0.8-1.2mm, height 15cm；
Granular activated carbon filtering layer 42 is made of the granular activated carbon that partial size is 16~32 mesh, height 60cm.
In the present embodiment, nutrient solution mother liquor supply unit 3 is additionally provided with the metering for measuring nutrient solution mother liquor output quantity
Pump (not shown).
In the present embodiment, standing reservoir case 2 is equipped with nutrient solution sample tap (not shown).
The present embodiment is additionally provided using the efficient recycling and processing equipment Treatment for Reuse plant nutrition liquid of above-mentioned plant nutrition liquid
Method, comprising:
Plant nutrition liquid initially enters plant nutrition liquid storage tank by circulating cultivation frame, when phosphate, nitrate are supervised online
When survey instrument monitors phosphate and nitrate concentration lower than setting value, 3 solenoid valve of unit is fed by nutrient solution mother liquor and is beaten automatically
It opens, a great number of elements and boron, zinc, manganese etc. such as nitrogen, phosphorus, potassium needed for feeding plant growth to standing reservoir case 2 by metering pump
Microelement.
In the present embodiment, this method further include:
After nutrient solution comes out from standing reservoir case 2, it is divided into two infusion paths, path 1: when nutrient solution cycle period is super
Spend 20 days or nutrient solution organic matter on-line monitoring concentration be when being more than 20mg/L, make nutrient solution from standing reservoir case 2 out after,
It is introduced into quartz sand-activated carbon adsorption retention unit 4, enters high-strength ultraviolet light mineralization unit 5 afterwards, finally water outlet, which reenters, follows
Ring cultivating stand 1.
Path 2: when nutrient solution cycle period is less than 20 days, and nutrient solution organic matter on-line monitoring concentration is less than
When 30mg/L, make nutrient solution from standing reservoir case 2 come out after, directly by surmount pipe 6 enter circulating cultivation frame 1.
After nutrient solution comes out from standing reservoir case 2, according to 1 situation of path, initially enters quartz sand-activated carbon adsorption and cut
Unit 4 is stayed, in this unit, the big partial size suspended matter that quartzy sand filter blanket 41 falls off retention removal because of plant root exudation, with
Granular activated carbon is on the one hand by the partial organic substances (such as phenolic acid class, humic acids), micro heavy in Adsorption nutrient solution afterwards
Metal ion and a small amount of pathogen；On the other hand the smaller suspended matter of partial size is removed into further retention.Quartz sand-activity carbon filtration
43 hydraulic detention time of pond is 15min.When the head loss of filtering layer reaches 30cm, carries out air-water and alternately backwash, gas punching
60s, air water rush 2min, and water rushes 60s, and whole process carries out 2 times.When TOC removal rate is reduced to 15% or less in unit water outlet,
Replace granular activated carbon filtering layer 42.Unit 4 is retained by quartz sand-activated carbon adsorption, the removal rate of suspended matter reaches in nutrient solution
To 90% or more, concentration of suspension is discharged in 5mg/L or less；TOC removal rate reaches 30% or more.
Nutrient solution is after quartz sand-activated carbon adsorption retention outflow of unit 4, into high-strength ultraviolet light mineralization unit 5, at this
In unit, the advantage for making full use of high-strength UV energy density high increases the generating rate of hydroxyl radical free radical, improves reaction speed
Rate, is difficult in efficient mineralization plant nutrition liquid to be tightly held by activated carbon or the organic matter of rhizosphere microbial degradation.High-strength ultraviolet light mine
The photon flux for changing high-strength ultraviolet light employed in unit 5 is 3.13 × 10-6einstein·cm-2·s-1(intensity is roughly equal to
1000mW/cm2), it more than two orders of magnitude higher than ultraviolet ray intensity used in traditional advanced oxidation processes, utilizes high-intensitive purple
The high feature of outer optical energy density reinforces the yield of hydroxyl radical free radical in advanced oxidation reaction, anti-to improve advanced oxidation with this
The reaction rate and oxidability answered, thus effectively remove secretions from plant roots, crop residues decomposition object etc. be difficult to it is active
The organic matter of charcoal absorption and microbial degradation synchronizes effectively control harmful microorganism and breeds, finally effectively avoids continuous cropping obstacle.This
1~2min of hydraulic detention time of unit.By high-strength ultraviolet light mineralization unit 5, in nutrient solution TOC removal rate reach 95% with
On, TOC concentration reaches 5mg/L or less；Turbidity reaches 5NTU hereinafter, concentration of suspension reaches 10mg/L or less.
The present invention has the following technical effect that
(1) high efficiency.High-strength ultraviolet light photons flux used by high-strength ultraviolet light mineralization unit of the invention is 3.13
×10-6einstein·cm-2·s-1(intensity is roughly equal to 1000mW/cm2), than ultraviolet light used in traditional advanced oxidation processes
More than high two orders of magnitude of intensity, the yield of hydroxyl radical free radical improves hundreds of times in reaction, can make the thorough mineralising of organic matter, no longer
Other intermediate products are generated, the continuous cropping obstacle for effectively avoiding organic matter or in which product from causing, and make the mineralization of organic material time
Shorten tens times.Compared with Conventional UV light technology, the TOC of initial concentration 25mg/L is made to reach 95% removal rate by 15min
It shorten to 1min.
(2) stability.Quartz sand of the present invention-activated carbon adsorption retention and high-strength ultraviolet mineralising combination technique are main
Small by environmental influence based on physical and chemical reaction, antigen water variation water quality impact load ability is strong, can effective guarantee
Stability of the circulation technology in closed system.
(3) compactedness.The present invention mainly uses quartz sand-activated carbon adsorption retention unit+high-strength ultraviolet light mineralization unit,
Quartz sand-activated carbon process that leading portion uses, because of granular activated carbon specific surface area with higher, adsorption capacity is strong, and general
Haydite filter tank compare, filter tank volume can reduce one third；The high-strength ultraviolet lamp technique that back segment uses, because of its ultrahigh in efficiency,
Hydraulic detention time only needs 1min, reaction monomers only 15L.For these reasons, the present invention is easily integrated compact integrated set
Standby, suitable for space resources anxiety manned space flight closed system.
(4) long-term effect.The present invention is excited mainly by electric current using ultraviolet lamp and generates high-throughput electronics, with conventional nanofiltration,
The membrane filtration process such as reverse osmosis, resin ion exchange process are different, and high-strength ultraviolet light mineralization unit mainly passes through big rain
It is carbon dioxide and water by the thorough mineralising of organic matter, ultraviolet lamp is hardly damaged under normal circumstances, has without physically or chemically regenerating
There is long-term effect.
Below by specific example, invention is further described in detail.
According to the continuous 240 days practical operation situations of the vertical cultivated system of closed system, plant nutrition liquid accumulation is not handled
The water quality situation of 20d is that TOC concentration is 25~30mg/L, and ammonia nitrogen concentration is 1~5mg/L, and turbidity is 4~10NTU, and suspended matter is dense
Degree is 30~50mg/L.During the test of continuous operation, after plant nutrition liquid circulation, standing reservoir case is initially entered, is led to
Nitrate and the automatic monitoring nutrient solution water quality condition of phosphate on-line monitoring probe in overnutrition liquid storage bin, when in nutrient solution
When a great number of elements needed for the plant growths such as nitrogen, phosphorus, potassium starts deficiency, plant nutrition liquid make-up system automatically turns on supply mould
Formula starts to supplement plant nutrient by peristaltic pump (metering pump).Plant nutrition liquid is after storage tank outflow, outlet pipe section dress
There are online TOC and ammonia nitrogen on-line monitoring probe, when TOC concentration is more than 20mg/L or the nutrient solution accumulation cycle time is more than 20d
When, then pipe electromagnetic valve automatically turns on, and nutrient solution enters plant nutrition liquid regenerative system；When TOC concentration be no more than 25mg/L, or
When the nutrient solution accumulation cycle time is no more than 20d, plant nutrition liquid is directly back to plant circulating cultivation frame by passing through pipe.
After plant nutrition liquid enters plant nutrition liquid regenerative system, quartz sand-activated-charcoal column is first passed around, in reactor
Interior hydraulic detention time is 15min, and mainly oil removal, absorbed portion organic matter, micro heavy are removed in retention in this unit
Ion and highly charged ions.Then, nutrient solution enters high-strength ultraviolet light mineralization unit, and the hydraulic detention time in reactor is
1min, by the high advantage of the energy density of high-strength ultraviolet light, by organic matters such as secretions from plant roots, crop residues decomposition objects
It is converted into carbon dioxide and water within the very short time, synchronizes effectively control harmful microorganism quantity, finally the effective company of avoiding
Make obstacle.After being handled by plant nutrition liquid regenerative system, effluent quality reaches TOC concentration < 5mg/L, ammonia nitrogen concentration < 1mg/
L, turbidity < 1NTU, concentration of suspension < 10mg/L.Ensure that nutrient solution at least can continuously recycle 360d or more.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. the efficient recycling and processing equipment of a plant nutrient liquor, which is characterized in that including circulating cultivation frame, standing reservoir case,
Nutrient solution mother liquor feeds unit, quartz sand-activated carbon adsorption retention unit and high-strength ultraviolet light mineralization unit；
The nutrient solution mother liquor supply unit is connect with the standing reservoir case, for feeding into the standing reservoir case
A great number of elements needed for plant growth and microelement；
The standing reservoir case outlet is connected by the first infusion branch and the second infusion branch and the circulating cultivation frame import
It connects, the circulating cultivation frame outlet is connect with the standing reservoir case import, to carry out the circulation of plant nutrition liquid；
The first infusion branch curb nutrient input send direction to be successively arranged the quartz sand-activated carbon adsorption retention unit and height
Strong ultraviolet light mineralization unit retains unit and high-strength ultraviolet light mineralization unit joint pair by the quartz sand-activated carbon adsorption
Crop residues decomposition suspended matter, root system secretion organic matter, harmful microorganism and variant viral in plant nutrition liquid are degraded
And removal；The second infusion branch is to surmount pipe；
The quartz sand-activated carbon adsorption retention unit and the import for surmounting pipe be equipped with for switch the first infusion branch and
The solenoid valve of second infusion branch；The nutrient solution mother liquor supply unit is equipped with the solenoid valve for controlling mother liquor output；
Phosphate, nitrate, organic matter on-line computing model, the phosphate, nitrate are installed in the standing reservoir case
On-line computing model is connect with the solenoid valve of nutrient solution mother liquor supply unit, the organic matter on-line computing model and described first
The solenoid valve connection of infusion branch and the second infusion branch.
2. the efficient recycling and processing equipment of plant nutrition liquid according to claim 1, which is characterized in that the quartz sand-work
Property charcoal absorption retention unit be the quartz sand-work being made of along nutrient solution conveying direction quartzy sand filter blanket, granular activated carbon filtering layer
Property carbon filtering pool.
3. the efficient recycling and processing equipment of plant nutrition liquid according to claim 2, which is characterized in that the quartz sand filter blanket
It is made of the quartz sand that partial size is 0.8-1.2mm, height 15cm；The granular activated carbon filtering layer is 16~32 mesh by partial size
Granular activated carbon constitute, height 60cm.
4. the efficient recycling and processing equipment of plant nutrition liquid according to claim 1, which is characterized in that the nutrient solution mother liquor
Supply unit is additionally provided with the metering pump for measuring nutrient solution mother liquor output quantity.
5. the efficient recycling and processing equipment of plant nutrition liquid according to claim 1, which is characterized in that the standing reservoir
Case is equipped with nutrient solution sample tap.
6. a kind of application efficient recycling and processing equipment Treatment for Reuse plant of plant nutrition liquid described in any one of claim 1 to 5
The method of nutrient solution characterized by comprising
When the phosphate, nitrate on-line computing model monitor phosphate and nitrate concentration lower than setting value, pass through institute
State nutrient solution mother liquor feed unit to standing reservoir case feed plant growth needed for nitrogen, phosphorus, potassium a great number of elements and boron, zinc,
Manganese microelement.
7. the method for Treatment for Reuse plant nutrition liquid according to claim 6, which is characterized in that further include:
When nutrient solution cycle period is more than 20 days or nutrient solution organic matter on-line monitoring concentration is more than 20mg/L, make nutrient solution
After coming out from standing reservoir case, it is introduced into the quartz sand-activated carbon adsorption retention unit, enters the high-strength ultraviolet light afterwards
Mineralization unit, finally water outlet reenters the circulating cultivation frame；
When nutrient solution cycle period is less than 20 days, and nutrient solution organic matter on-line monitoring concentration is less than 30mg/L, make to seek
After nutrient solution comes out from standing reservoir case, directly by the pipe that surmounts into the circulating cultivation frame.
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| CN201910148245.1A CN109892221A (en) | 2019-02-27 | 2019-02-27 | The efficient recycling and processing equipment of one plant nutrient liquor and method |
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| CN201910148245.1A CN109892221A (en) | 2019-02-27 | 2019-02-27 | The efficient recycling and processing equipment of one plant nutrient liquor and method |
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