CN110294649A - A kind of seawater composite liquid fertilizer, preparation method and application - Google Patents
A kind of seawater composite liquid fertilizer, preparation method and application Download PDFInfo
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- CN110294649A CN110294649A CN201910634608.2A CN201910634608A CN110294649A CN 110294649 A CN110294649 A CN 110294649A CN 201910634608 A CN201910634608 A CN 201910634608A CN 110294649 A CN110294649 A CN 110294649A
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- seawater
- liquid fertilizer
- composite liquid
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- fertilizer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Fertilizers (AREA)
Abstract
The present invention provides a kind of seawater composite liquid fertilizers, preparation method and application, the additive is using seawater as raw material, using sodium ion, chloride ion and harmful heavy metal ions extra in a variety of membrane technologies removal seawater, Liquid Fertilizer mother liquor is produced, to be suitable as plant fertilizer application.
Description
Technical field
The invention belongs to technical field of fertilizer, more particularly, to a kind of seawater composite liquid fertilizer, preparation method and application.
Background technique
China is the big country of fertilizer production and consumption in the world, mainly based on solid fertilizer, Liquid Fertilizer accounting very little, and
The developed countries such as the U.S., Britain Liquid Fertilizer has obtained universal application.In recent years due to the adjustment and agriculture of China's industrial crops structure
The development of industry automation, increasingly increases the demand of liquid fertilizer, China's liquid fertilizer yield in 2017 reaches according to statistics
90.2 ten thousand tons.Liquid fertilizer has that producing cost is low, nutrient content is high, it is compound to be easy to, can directly be absorbed, by crops convenient for matching
Many advantages, such as side's fertilising (balance fertilizing) and mechanized application, still, China Liquid Fertilizer market, the good and bad jumbled together for product, quality
Level is uneven, without specific aim.
Currently, it is raw material that China's Liquid Fertilizer, which mostly uses solid chemical fertilizer, dissolves and be formulated under certain stirring action, fertilizer
The crystallization temperature of material is high, and acidity is big, easily causes to corrode to drip irrigation equipment.Utilize nutrient in the liquid fertilizer product of this method production
Content is low, trace mineral element in shortage, and the problems such as not readily dissolve there are solid fertilizer, becomes and restricts liquid fertilizer development
Bottleneck.
Low and in lacking the problems such as trace mineral element for liquid fertilizer nutrient content, a kind of seawater of the present invention is compound
The preparation method and technology of Liquid Fertilizer is the technology combined using micro-filtration and nanofiltration using seawater as raw material, and production Liquid Fertilizer is female
Liquid compounds other resolvability salt production ionic seawater composite liquid fertilizer.In being rich in the Liquid Fertilizer needed for plant growth
Trace mineral element, and each middle trace mineral element exists in the form of an ion, it is easy for plant to absorpt, it solves because of minerals member
The various physiological metabolism processes of plant caused by element lacks are not normal, lesion occur, such as: calcium deficiency causes growing tips of the plant downright bad；Magnesium deficiency
Lead to yellow leaf, photosynthesis is obstructed；A lack of sulfur causes young leaves to turn to be yellow, and blade is small.The technology utilizes seawater to produce for the first time simultaneously
Liquid Fertilizer not only remains trace mineral element whole in seawater, improves the added value of seawater chemical products, also reduces
The cost of Liquid Fertilizer raw material contributes for enterprise's save the cost, has the value promoted.
Summary of the invention
In view of this, the present invention is directed to propose a kind of preparation method and technology of seawater composite liquid fertilizer, is original with seawater
Material, using sodium ion, chloride ion and harmful ion extra in a variety of membrane technologies removal seawater, member needed for retaining plant growth
Element, then other trace mineral elements are compounded, to be suitable as plant fertilizer application.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of seawater composite liquid fertilizer, the main constituents of Liquid Fertilizer include: Ca2+、Mg2+Total content is not less than 100g/
L, K+1~30g/L, SO4 2-160~200g/L, trace mineral element 1-10g/L.
Further, the pH value of seawater composite liquid fertilizer is 3~8.
Further, the trace mineral element is trace mineral element needed for plant.
Further, the trace mineral element is one or more of boron, iron, zinc, manganese, copper, molybdenum.
A kind of preparation method of above-mentioned seawater composite liquid fertilizer provided by the invention, includes the following steps:
(1) micro-filtration: seawater enters microfiltration systems, removes the insoluble impurities in seawater, and the aperture of microfiltration membranes is 0.1~1 μ
M, operating pressure are 0.01~0.2MPa；
(2) level-one nanofiltration is concentrated: the seawater of microfiltration systems discharge enters nanofiltration system, and the aperture of nanofiltration membrane is 1~2nm,
Operating pressure is 2~4MPa, recycles and is concentrated by nanofiltration system, removes most monovalent ion (Na+、Cl-、Br-、I-), it goes
Except heavy metal ion unfavorable to plant growth in seawater, remaining concentrate is mixed with tap water；
(3) second level nanofiltration is concentrated: concentrate is concentrated through second level nanofiltration system again after mixing with tap water, until in concentrate
Dissolvability solid amount reaches 220~270g/L, can be used as the extraction of Liquid Fertilizer mother liquor, and the liquid portion filtered out can be arranged directly
Sea；
(4) ceramic membrane filter: under conditions of 25 DEG C~80 DEG C, mother liquor being introduced into ceramic membrane reaction kettle, is added certain
The magnesium chloride or magnesium sulfate of amount stir 1h~6h, and chelating agent is added after solid is completely dissolved, and stir 0.5h~1h, add
A certain amount of calcium chloride and trace mineral element stir 1h~6h, most obtain product seawater complex liquid through ceramic membrane filter afterwards
Body fertilizer.
Preferably, the chelating agent in step 4) can be disodium ethylene diamine tetraacetate (EDTA), sodium tripolyphosphate, glucose
Sour sodium, citric acid etc.；Chelating agent can increase the solubility of calcium chloride, increase soluble calcium content in Liquid Fertilizer.
Preferably, step 4) mineral is derived from boric acid, borax, ammonium molybdate, sodium molybdate, calcium molybdate, manganese sulfate, nitric acid
Manganese, manganese chloride, zinc sulfate, zinc nitrate, zinc chloride, copper sulphate, copper nitrate, copper chloride, ferrous sulfate, ferric sulfate, ammonium sulfate iron
One or more of, with trace mineral element boron, iron, zinc, manganese, copper, molybdenum needed for supplementing plant.
In addition, the application the invention also discloses above-mentioned seawater composite liquid fertilizer in plant chemical fertilizer.
Seawater composite liquid fertilizer of the present invention, preparation method and application have the advantage that
(1) using seawater as primary raw material, low in raw material price, abundance；The attached of seawater chemical products is improved simultaneously
It is value added；
(2) liquid fertilizer is prepared using micro-filtration and nanofiltration system, simple production process, low energy consumption；
(3) seawater composite liquid fertilizer is ion type liquid fertilizer, can improve the speed of absorption directly by crop Foliage Absorption
Degree, utilization rate significantly improve；Liquid Fertilizer acidity is low, and nutritional ingredient is high, is free of indissolubility solid particle, convenient for fertilising；
(4) calcium and magnesium ion that plant lacks can be supplemented, plant health growth is promoted, the intracorporal minerals of plant is promoted and contains
The phenomenon that amount, the mineral matter element of improvement human body lacks from the root.
Detailed description of the invention
Fig. 1 is a kind of preparation technology flow chart of seawater composite liquid fertilizer of the invention.
Specific embodiment
In addition to being defined, technical term used in following embodiment has universal with those skilled in the art of the invention
The identical meanings of understanding.Test reagent used in following embodiment is unless otherwise specified conventional biochemical reagent；It is described
Experimental method is unless otherwise specified conventional method.
Below with reference to embodiment, the present invention will be described in detail.
Embodiment 1
A kind of preparation method of boracic seawater composite liquid fertilizer:
(1) using two class seawater in Bohai Bay as raw material, having in the micro-filtrate membrane filtration seawater that via hole diameter is 0.5 μm
Machine biology and impurity etc., the operating pressure of microfiltration membranes are 0.01MPa；
(2) seawater of microfiltration systems discharge enters level-one nanofiltration system, recycles and is concentrated by level-one nanofiltration system, nanofiltration membrane
Aperture be 1nm, operating pressure 2MPa, remove most monovalent ion (Na+、Cl-、K+、Br-、I-), remaining concentrate
It is mixed with tap water；
(3) it is concentrated again through second level nanofiltration system after concentrate is mixed with tap water, until soluble solid is total in concentrate
Amount reaches 260g/L, can be used as the extraction of Liquid Fertilizer mother liquor, and the liquid portion filtered out can directly arrange sea；
(4) under conditions of 25 DEG C, mother liquor is introduced into ceramic membrane reaction kettle, the magnesium chloride of 300g/L is added, stirs 1h,
EDTA is added after solid is completely dissolved, stirs 0.5h, adds the calcium chloride of 33g/L and the boric acid of 17g/L, stirs 3h, most
Product seawater composite liquid fertilizer is obtained by ceramic membrane filter, the pH value of the composite liquid fertilizer is 5.6.
A kind of each ion concentration of boracic seawater composite liquid fertilizer, see the table below:
Embodiment 2
A kind of preparation method of iron content seawater composite liquid fertilizer:
(1) using two class seawater in Bohai Bay as raw material, having in the micro-filtrate membrane filtration seawater that via hole diameter is 0.5 μm
Machine biology and impurity etc., the operating pressure of microfiltration membranes are 0.1MPa；
(2) seawater of microfiltration systems discharge enters level-one nanofiltration system, recycles and is concentrated by level-one nanofiltration system, nanofiltration membrane
Aperture be 1nm, operating pressure 3MPa, remove most monovalent ion (Na+, Cl-, K+, Br-, I-), remaining concentration
Liquid is mixed with tap water；
(3) it is concentrated again through second level nanofiltration system after concentrate is mixed with tap water, until soluble solid is total in concentrate
Amount reaches 240g/L, can be used as the extraction of Liquid Fertilizer mother liquor, and the liquid portion filtered out can directly arrange sea；
(4) under conditions of 25 DEG C, mother liquor is introduced into ceramic membrane reaction kettle, the magnesium chloride of 300g/L is added, stirs 1h,
EDTA is added after solid is completely dissolved, stirs 0.5h, adds the calcium chloride of 33g/L and the ferrous sulfate of 30g/L, stirs
3h, most obtains product seawater composite liquid fertilizer through ceramic membrane filter afterwards, and the pH value of the composite liquid fertilizer is 6.0.
A kind of each ion concentration of iron content seawater composite liquid fertilizer, see the table below:
| Ionic species | K+ | Ca2+ | Mg2+ | SO4 2- | Fe2+ |
| Content (g/L) | 2 | 12 | 110 | 170 | 6 |
Embodiment 3
A kind of preparation method of the composite liquid fertilizer of seawater containing copper-manganese:
(1) using two class seawater in Bohai Bay as raw material, having in the micro-filtrate membrane filtration seawater that via hole diameter is 0.5 μm
Machine biology and impurity etc., the operating pressure of microfiltration membranes are 0.1MPa；
(2) seawater of microfiltration systems discharge enters level-one nanofiltration system, recycles and is concentrated by level-one nanofiltration system, nanofiltration membrane
Aperture be 1nm, operating pressure 4MPa, remove most monovalent ion (Na+, Cl-, K+, Br-, I-), remaining concentration
Liquid is mixed with tap water；
(3) it is concentrated again through second level nanofiltration system after concentrate is mixed with tap water, until soluble solid is total in concentrate
Amount reaches 200g/L, can be used as the extraction of Liquid Fertilizer mother liquor, and the liquid portion filtered out can directly arrange sea；
(4) under conditions of 45 DEG C, mother liquor is introduced into ceramic membrane reaction kettle, the magnesium sulfate of 320g/L is added, stirs 3h,
Citric acid is added after solid is completely dissolved, stirs 0.5h, adds the calcium chloride of 33g/L, the manganese nitrate and 12g/L of 10g/L
Copper nitrate, stir 5h, most obtain product seawater composite liquid fertilizer through ceramic membrane filter afterwards, the pH value of the composite liquid fertilizer is
6.5。
A kind of each ion concentration of the composite liquid fertilizer of seawater containing copper-manganese, see the table below:
| Ionic species | K+ | Ca2+ | Mg2+ | SO4 2- | Mn2+ | Cu2+ |
| Content (g/L) | 1 | 12 | 110 | 170 | 3 | 4 |
Embodiment 4
A kind of preparation method of the composite liquid fertilizer of seawater containing copper-manganese is substantially the same manner as Example 3, the difference is that: step
(4) chelating agent is not added in, other steps and raw material additional amount are all the same, finally obtain the pH value of product seawater composite liquid fertilizer
It is 6.1.
A kind of each ion concentration of the composite liquid fertilizer of seawater containing copper-manganese, see the table below:
| Ionic species | K+ | Ca2+ | Mg2+ | SO4 2- | Mn2+ | Cu2+ |
| Content (g/L) | 1 | 5 | 110 | 170 | 3 | 4 |
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of seawater composite liquid fertilizer, it is characterised in that: the main constituents of Liquid Fertilizer include: Ca2+、Mg2+Total content is not
Less than 100g/L, K+1~30g/L, SO4 2-160~200g/L, trace mineral element 1-10g/L.
2. a kind of seawater composite liquid fertilizer and preparation method thereof according to claim 1, it is characterised in that: seawater composite fluid
The pH value of fertilizer is 3~8.
3. a kind of seawater composite liquid fertilizer and preparation method thereof according to claim 1, it is characterised in that: the trace quantity mineral
Prime element is trace mineral element needed for plant.
4. a kind of seawater composite liquid fertilizer and preparation method thereof according to claim 1, it is characterised in that: the trace quantity mineral
Prime element is one or more of boron, iron, zinc, manganese, copper, molybdenum.
5. the preparation method of seawater composite liquid fertilizer according to claim 1, characterized by the following steps:
(1) micro-filtration: seawater enters microfiltration systems, removes the insoluble impurities in seawater, and the aperture of microfiltration membranes is 0.1~1 μm, behaviour
Making pressure is 0.01~0.2MPa；
(2) level-one nanofiltration is concentrated: the seawater of microfiltration systems discharge enters nanofiltration system, and the aperture of nanofiltration membrane is 1~2nm, operation
Pressure is 2~4MPa, recycles and is concentrated by nanofiltration system, and concentrate is mixed with tap water；
(3) second level nanofiltration is concentrated: concentrate is concentrated through second level nanofiltration system again after mixing with tap water, until dissolving in concentrate
Property solid amount reach 220~270g/L, can be used as Liquid Fertilizer mother liquor extraction；
(4) ceramic membrane filter: under conditions of 25 DEG C~80 DEG C, mother liquor being introduced into ceramic membrane reaction kettle, is added a certain amount of
Magnesium chloride or magnesium sulfate stir 1h~6h, and chelating agent is added after solid is completely dissolved, and stir 0.5h~1h, add certain
The calcium chloride and trace mineral element of amount stir 1h~6h, most obtain product seawater composite liquid fertilizer through ceramic membrane filter afterwards.
6. a kind of seawater composite liquid fertilizer and preparation method thereof according to claim 5, it is characterised in that: the chela in step 4)
Mixture is the knot of one or more of disodium ethylene diamine tetraacetate (EDTA), sodium tripolyphosphate, sodium gluconate, citric acid
It closes.
7. a kind of seawater composite liquid fertilizer and preparation method thereof according to claim 5, it is characterised in that: micro in step 4)
Mineral matter element is derived from boric acid, borax, ammonium molybdate, sodium molybdate, calcium molybdate, manganese sulfate, manganese nitrate, manganese chloride, zinc sulfate, nitric acid
One or more of zinc, zinc chloride, copper sulphate, copper nitrate, copper chloride, ferrous sulfate, ferric sulfate, ammonium sulfate iron.
8. a kind of application of seawater composite liquid fertilizer as claimed in claim 1 in plant chemical fertilizer.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295050A (en) * | 1999-11-08 | 2001-05-16 | 张义盼 | Preparation of foliage fertilizer |
| CN101077842A (en) * | 2007-06-22 | 2007-11-28 | 林华 | Composite ocean deep water leaf surface fertilizer |
| KR100902495B1 (en) * | 2008-01-01 | 2009-06-16 | 서희동 | A composting method of the organic wastes using bittern, the bittern which was produced by deep sea water |
| CN104085956A (en) * | 2014-05-23 | 2014-10-08 | 三达膜科技（厦门）有限公司 | Preparation method for seawater nanofiltration concentrate liquid |
| CN105884086A (en) * | 2016-06-13 | 2016-08-24 | 天津滨瀚环保科技发展有限公司 | Seawater mineral substance and trace element concentrated solution and preparation method and application thereof |
-
2019
- 2019-07-15 CN CN201910634608.2A patent/CN110294649A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295050A (en) * | 1999-11-08 | 2001-05-16 | 张义盼 | Preparation of foliage fertilizer |
| CN101077842A (en) * | 2007-06-22 | 2007-11-28 | 林华 | Composite ocean deep water leaf surface fertilizer |
| KR100902495B1 (en) * | 2008-01-01 | 2009-06-16 | 서희동 | A composting method of the organic wastes using bittern, the bittern which was produced by deep sea water |
| CN104085956A (en) * | 2014-05-23 | 2014-10-08 | 三达膜科技（厦门）有限公司 | Preparation method for seawater nanofiltration concentrate liquid |
| CN105884086A (en) * | 2016-06-13 | 2016-08-24 | 天津滨瀚环保科技发展有限公司 | Seawater mineral substance and trace element concentrated solution and preparation method and application thereof |
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